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mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/text-classification/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Text classification examples
This folder contains some scripts showing examples of *text classification* with the 🤗 Transformers library.
For straightforward use-cases you may be able to use these scripts without modification, although we have also
included comments in the code to indicate areas that you may need to adapt to your own projects.
## run_text_classification.py
This script handles perhaps the single most common use-case for this entire library: Training an NLP classifier
on your own training data. This can be whatever you want - you could classify text as abusive/hateful or
allowable, or forum posts as spam or not-spam, or classify the genre of a headline as politics, sports or any
number of other categories. Any task that involves classifying natural language into two or more different categories
can work with this! You can even do regression, such as predicting the score on a 1-10 scale that a user gave,
given the text of their review.
The preferred input format is either a CSV or newline-delimited JSON file that contains a `sentence1` and
`label` field. If your task involves comparing two texts (for example, if your classifier
is deciding whether two sentences are paraphrases of each other, or were written by the same author) then you should also include a `sentence2` field in each example. If you do not have a `sentence1` field then the script will assume the non-label fields are the input text, which
may not always be what you want, especially if you have more than two fields!
Here is a snippet of a valid input JSON file, though note that your texts can be much longer than these, and are not constrained
(despite the field name) to being single grammatical sentences:
```json
{"sentence1": "COVID-19 vaccine updates: How is the rollout proceeding?", "label": "news"}
{"sentence1": "Manchester United celebrates Europa League success", "label": "sports"}
```
### Usage notes
If your inputs are long (more than ~60-70 words), you may wish to increase the `--max_seq_length` argument
beyond the default value of 128. The maximum supported value for most models is 512 (about 200-300 words),
and some can handle even longer. This will come at a cost in runtime and memory use, however.
We assume that your labels represent *categories*, even if they are integers, since text classification
is a much more common task than text regression. If your labels are floats, however, the script will assume
you want to do regression. This is something you can edit yourself if your use-case requires it!
After training, the model will be saved to `--output_dir`. Once your model is trained, you can get predictions
by calling the script without a `--train_file` or `--validation_file`; simply pass it the output_dir containing
the trained model and a `--test_file` and it will write its predictions to a text file for you.
### Multi-GPU and TPU usage
By default, the script uses a `MirroredStrategy` and will use multiple GPUs effectively if they are available. TPUs
can also be used by passing the name of the TPU resource with the `--tpu` argument.
### Memory usage and data loading
One thing to note is that all data is loaded into memory in this script. Most text classification datasets are small
enough that this is not an issue, but if you have a very large dataset you will need to modify the script to handle
data streaming. This is particularly challenging for TPUs, given the stricter requirements and the sheer volume of data
required to keep them fed. A full explanation of all the possible pitfalls is a bit beyond this example script and
README, but for more information you can see the 'Input Datasets' section of
[this document](https://www.tensorflow.org/guide/tpu).
### Example command
```bash
python run_text_classification.py \
--model_name_or_path distilbert/distilbert-base-cased \
--train_file training_data.json \
--validation_file validation_data.json \
--output_dir output/ \
--test_file data_to_predict.json \
--do_train \
--do_eval \
--do_predict
```
## run_glue.py
This script handles training on the GLUE dataset for various text classification and regression tasks. The GLUE datasets will be loaded automatically, so you only need to specify the task you want (with the `--task_name` argument). You can also supply your own files for prediction with the `--predict_file` argument, for example if you want to train a model on GLUE for e.g. paraphrase detection and then predict whether your own data contains paraphrases or not. Please ensure the names of your input fields match the names of the features in the relevant GLUE dataset - you can see a list of the column names in the `task_to_keys` dict in the `run_glue.py` file.
### Usage notes
The `--do_train`, `--do_eval` and `--do_predict` arguments control whether training, evaluations or predictions are performed. After training, the model will be saved to `--output_dir`. Once your model is trained, you can call the script without the `--do_train` or `--do_eval` arguments to quickly get predictions from your saved model.
### Multi-GPU and TPU usage
By default, the script uses a `MirroredStrategy` and will use multiple GPUs effectively if they are available. TPUs
can also be used by passing the name of the TPU resource with the `--tpu` argument.
### Memory usage and data loading
One thing to note is that all data is loaded into memory in this script. Most text classification datasets are small
enough that this is not an issue, but if you have a very large dataset you will need to modify the script to handle
data streaming. This is particularly challenging for TPUs, given the stricter requirements and the sheer volume of data
required to keep them fed. A full explanation of all the possible pitfalls is a bit beyond this example script and
README, but for more information you can see the 'Input Datasets' section of
[this document](https://www.tensorflow.org/guide/tpu).
### Example command
```bash
python run_glue.py \
--model_name_or_path distilbert/distilbert-base-cased \
--task_name mnli \
--do_train \
--do_eval \
--do_predict \
--predict_file data_to_predict.json
```
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/contrastive-image-text/requirements.txt | tensorflow>=2.6.0
datasets>=1.8.0 | 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/contrastive-image-text/run_clip.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Training a CLIP like dual encoder models using text and vision encoders in the library.
The script can be used to train CLIP like models for languages other than English by using
a text encoder pre-trained in the desired language. Currently this script supports the following vision
and text models:
Vision models: ViT(https://huggingface.co/models?filter=vit), CLIP (https://huggingface.co/models?filter=clip)
Text models: BERT, ROBERTa (https://huggingface.co/models?filter=fill-mask)
"""
import logging
import os
import sys
import warnings
from dataclasses import dataclass, field
from typing import Optional
import tensorflow as tf
from datasets import load_dataset
from PIL import Image
import transformers
from transformers import (
AutoImageProcessor,
AutoTokenizer,
HfArgumentParser,
PushToHubCallback,
TFAutoModel,
TFTrainingArguments,
TFVisionTextDualEncoderModel,
create_optimizer,
)
from transformers.utils import check_min_version, send_example_telemetry
from transformers.utils.versions import require_version
logger = logging.getLogger(__name__)
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
require_version(
"datasets>=1.8.0", "To fix: pip install -r examples/tensorflow/contrastive-image-text/requirements.txt"
)
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}, default=None
)
vision_model_name_or_path: str = field(
metadata={"help": "Path to pretrained image model or model identifier from huggingface.co/models"},
default=None,
)
text_model_name_or_path: str = field(
metadata={"help": "Path to pretrained text model or model identifier from huggingface.co/models"}, default=None
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
image_processor_name: str = field(default=None, metadata={"help": "Name or path of preprocessor config."})
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
freeze_vision_model: bool = field(
default=False, metadata={"help": "Whether to freeze the vision model parameters or not."}
)
freeze_text_model: bool = field(
default=False, metadata={"help": "Whether to freeze the text model parameters or not."}
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
data_dir: Optional[str] = field(default=None, metadata={"help": "The data directory containing input files."})
image_column: Optional[str] = field(
default="image_path",
metadata={"help": "The name of the column in the datasets containing the full image file paths."},
)
caption_column: Optional[str] = field(
default="caption",
metadata={"help": "The name of the column in the datasets containing the image captions."},
)
train_file: Optional[str] = field(
default=None, metadata={"help": "The input training data file (a jsonlines file)."}
)
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file (a jsonlines file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input testing data file (a jsonlines file)."},
)
max_seq_length: Optional[int] = field(
default=128,
metadata={
"help": (
"The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension == "json", "`validation_file` should be a json file."
dataset_name_mapping = {
"image_caption_dataset.py": ("image_path", "caption"),
}
def crop_to_square(image):
height, width = tf.shape(image)[0], tf.shape(image)[1]
if height > width:
image = tf.image.crop_to_bounding_box(image, (height - width) // 2, 0, width, width)
elif width > height:
image = tf.image.crop_to_bounding_box(image, 0, (width - height) // 2, height, height)
return image
def load_as_tf_dataset(dataset, image_column, image_size, mean, std, batch_size, shuffle):
dataset = dataset.with_format("tensorflow")[:] # Load the dataset as tensor slices, but not the images yet!
tf_dataset = tf.data.Dataset.from_tensor_slices(dataset)
def load_image(sample):
image_path = sample[image_column]
image = tf.io.read_file(image_path)
image = tf.image.decode_image(image, channels=3, expand_animations=False)
image = crop_to_square(image)
image = tf.image.resize(image, [image_size, image_size], method="bicubic", antialias=True)
image = image / 255.0
image = (image - mean) / std
image = tf.transpose(image, perm=[2, 0, 1]) # Convert to channels-first
sample["pixel_values"] = image
del sample[image_column]
return sample
if shuffle:
tf_dataset = tf_dataset.shuffle(len(tf_dataset))
tf_dataset = tf_dataset.map(load_image, num_parallel_calls=tf.data.experimental.AUTOTUNE)
tf_dataset = tf_dataset.batch(batch_size, drop_remainder=shuffle)
tf_dataset = tf_dataset.prefetch(tf.data.experimental.AUTOTUNE)
return tf_dataset
def main():
# 1. Parse input arguments
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TFTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
if model_args.model_name_or_path is not None:
if model_args.vision_model_name_or_path is not None or model_args.text_model_name_or_path is not None:
raise ValueError(
"If using model_name_or_path, you cannot specify separate image/text model paths as well!"
)
if model_args.vision_model_name_or_path is not None or model_args.text_model_name_or_path is not None:
if model_args.model_name_or_path is not None:
raise ValueError(
"If using separate image/text model paths, you cannot specify model_name_or_path as well!"
)
if not (model_args.vision_model_name_or_path is not None and model_args.text_model_name_or_path is not None):
raise ValueError(
"If using separate image/text model paths, you must specify both vision_model_name_or_path "
"and text_model_name_or_path!"
)
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/TensorFlow versions.
send_example_telemetry("run_clip", model_args, data_args, framework="tensorflow")
# 2. Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
handlers=[logging.StreamHandler(sys.stdout)],
)
# The default of training_args.log_level is passive, so we set log level at info here to have that default.
transformers.utils.logging.set_verbosity_info()
log_level = training_args.get_process_log_level()
logger.setLevel(log_level)
transformers.utils.logging.set_verbosity(log_level)
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
# Log on each process the small summary:
logger.info(f"Training/evaluation parameters {training_args}")
# 3. Detecting last checkpoint and eventually continue from last checkpoint
last_checkpoint = None
if os.path.isdir(training_args.output_dir) and training_args.do_train and not training_args.overwrite_output_dir:
if last_checkpoint is None and len(os.listdir(training_args.output_dir)) > 0:
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
elif last_checkpoint is not None and training_args.resume_from_checkpoint is None:
logger.info(
f"Checkpoint detected, resuming training at {last_checkpoint}. To avoid this behavior, change "
"the `--output_dir` or add `--overwrite_output_dir` to train from scratch."
)
# 4. Load dataset
# Get the datasets: you can either provide your own CSV/JSON training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files this script will use the first column for the full image path and the second column for the
# captions (unless you specify column names for this with the `image_column` and `caption_column` arguments).
#
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
dataset = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
keep_in_memory=False,
data_dir=data_args.data_dir,
token=model_args.token,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if data_args.test_file is not None:
data_files["test"] = data_args.test_file
extension = data_args.test_file.split(".")[-1]
dataset = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# 5. Load pretrained model, tokenizer, and image processor
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.text_model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.text_model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
if model_args.model_name_or_path:
# Load image_processor, in this script we only use this to get the mean and std for normalization.
image_processor = AutoImageProcessor.from_pretrained(
model_args.image_processor_name or model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
with training_args.strategy.scope():
model = TFAutoModel.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
# Load image_processor, in this script we only use this to get the mean and std for normalization.
image_processor = AutoImageProcessor.from_pretrained(
model_args.image_processor_name or model_args.vision_model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
with training_args.strategy.scope():
model = TFVisionTextDualEncoderModel.from_vision_text_pretrained(
vision_model_name_or_path=model_args.vision_model_name_or_path,
text_model_name_or_path=model_args.text_model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
config = model.config
if model_args.freeze_vision_model:
model.vision_model.trainable = False
if model_args.freeze_text_model:
model.text_model.trainable = False
# Preprocessing the datasets.
# We need to tokenize inputs and targets.
if training_args.do_train:
column_names = dataset["train"].column_names
elif training_args.do_eval:
column_names = dataset["validation"].column_names
elif training_args.do_predict:
column_names = dataset["test"].column_names
else:
logger.info("There is nothing to do. Please pass `do_train`, `do_eval` and/or `do_predict`.")
return
# 6. Get the column names for input/target.
dataset_columns = dataset_name_mapping.get(data_args.dataset_name, None)
if data_args.image_column is None:
image_column = dataset_columns[0] if dataset_columns is not None else column_names[0]
else:
image_column = data_args.image_column
if image_column not in column_names:
raise ValueError(
f"--image_column' value '{data_args.image_column}' needs to be one of: {', '.join(column_names)}"
)
if data_args.caption_column is None:
caption_column = dataset_columns[1] if dataset_columns is not None else column_names[1]
else:
caption_column = data_args.caption_column
if caption_column not in column_names:
raise ValueError(
f"--caption_column' value '{data_args.caption_column}' needs to be one of: {', '.join(column_names)}"
)
# # 7. Preprocessing the datasets.
# We need to tokenize input captions and transform the images.
def tokenize_captions(examples):
captions = list(examples[caption_column])
text_inputs = tokenizer(captions, max_length=data_args.max_seq_length, padding="max_length", truncation=True)
examples["input_ids"] = text_inputs.input_ids
examples["attention_mask"] = text_inputs.attention_mask
return examples
def filter_corrupt_images(examples):
"""remove problematic images"""
valid_images = []
for image_file in examples[image_column]:
try:
Image.open(image_file)
valid_images.append(True)
except Exception:
valid_images.append(False)
return valid_images
if training_args.do_train:
if "train" not in dataset:
raise ValueError("--do_train requires a train dataset")
train_dataset = dataset["train"]
if data_args.max_train_samples is not None:
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
train_dataset = train_dataset.filter(
filter_corrupt_images, batched=True, num_proc=data_args.preprocessing_num_workers
)
train_dataset = train_dataset.map(
function=tokenize_captions,
batched=True,
remove_columns=[col for col in column_names if col != image_column],
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
desc="Running tokenizer on train dataset",
)
tf_train_dataset = load_as_tf_dataset(
dataset=train_dataset,
batch_size=training_args.per_device_train_batch_size,
image_column=image_column,
image_size=config.vision_config.image_size,
mean=image_processor.image_mean,
std=image_processor.image_std,
shuffle=True,
)
if training_args.do_eval:
if "validation" not in dataset:
raise ValueError("--do_eval requires a train validation")
eval_dataset = dataset["validation"]
if data_args.max_eval_samples is not None:
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
eval_dataset = eval_dataset.filter(
filter_corrupt_images, batched=True, num_proc=data_args.preprocessing_num_workers
)
eval_dataset = eval_dataset.map(
function=tokenize_captions,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=[col for col in column_names if col != image_column],
load_from_cache_file=not data_args.overwrite_cache,
desc="Running tokenizer on validation dataset",
)
tf_eval_dataset = load_as_tf_dataset(
dataset=eval_dataset,
batch_size=training_args.per_device_eval_batch_size,
image_column=image_column,
image_size=config.vision_config.image_size,
mean=image_processor.image_mean,
std=image_processor.image_std,
shuffle=False,
)
# 8. Preparing push_to_hub and model card
push_to_hub_model_id = training_args.push_to_hub_model_id
if model_args.model_name_or_path is not None:
model_name = model_args.model_name_or_path.split("/")[-1]
else:
vision_name = model_args.vision_model_name_or_path.split("/")[-1]
text_name = model_args.text_model_name_or_path.split("/")[-1]
model_name = f"{vision_name}-{text_name}"
if not push_to_hub_model_id:
if data_args.dataset_name is not None:
push_to_hub_model_id = f"{model_name}-finetuned-{data_args.dataset_name}"
else:
push_to_hub_model_id = f"{model_name}-finetuned-contrastive-image-text-modeling"
model_card_kwargs = {"finetuned_from": model_args.model_name_or_path, "tasks": "contrastive-image-text-modeling"}
if data_args.dataset_name is not None:
model_card_kwargs["dataset_tags"] = data_args.dataset_name
if data_args.dataset_config_name is not None:
model_card_kwargs["dataset_args"] = data_args.dataset_config_name
model_card_kwargs["dataset"] = f"{data_args.dataset_name} {data_args.dataset_config_name}"
else:
model_card_kwargs["dataset"] = data_args.dataset_name
if training_args.push_to_hub:
callbacks = [
PushToHubCallback(
output_dir=training_args.output_dir,
hub_model_id=push_to_hub_model_id,
hub_token=training_args.push_to_hub_token,
tokenizer=tokenizer,
**model_card_kwargs,
)
]
else:
callbacks = []
# # 9. Training
if training_args.do_train:
num_train_steps = int(len(tf_train_dataset) * int(training_args.num_train_epochs))
if training_args.warmup_steps > 0:
num_warmup_steps = training_args.warmup_steps
elif training_args.warmup_ratio > 0:
num_warmup_steps = int(num_train_steps * training_args.warmup_ratio)
else:
num_warmup_steps = 0
optimizer, lr_schedule = create_optimizer(
init_lr=training_args.learning_rate,
num_train_steps=num_train_steps,
num_warmup_steps=num_warmup_steps,
adam_beta1=training_args.adam_beta1,
adam_beta2=training_args.adam_beta2,
adam_epsilon=training_args.adam_epsilon,
weight_decay_rate=training_args.weight_decay,
adam_global_clipnorm=training_args.max_grad_norm,
)
# Transformers models compute the right loss for their task by default when labels are passed, and will
# use this for training unless you specify your own loss function in compile().
model.compile(optimizer=optimizer, jit_compile=training_args.xla)
if not training_args.do_eval:
tf_eval_dataset = None
model.fit(
tf_train_dataset,
validation_data=tf_eval_dataset,
epochs=int(training_args.num_train_epochs),
callbacks=callbacks,
)
# # 10. Evaluation
if training_args.do_eval and not training_args.do_train:
model.evaluate(tf_eval_dataset)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/contrastive-image-text/README.md | <!---
Copyright 2023 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# TFVisionTextDualEncoder and CLIP model training examples
The following example showcases how to train a CLIP-like vision-text dual encoder model
using a pre-trained vision and text encoder.
Such a model can be used for natural language image search and potentially zero-shot image classification.
The model is inspired by [CLIP](https://openai.com/blog/clip/), introduced by Alec Radford et al.
The idea is to train a vision encoder and a text encoder jointly to project the representation of images and their
captions into the same embedding space, such that the caption embeddings are located near the embeddings
of the images they describe.
### Download COCO dataset (2017)
This example uses COCO dataset (2017) through a custom dataset script, which requires users to manually download the
COCO dataset before training.
```bash
mkdir data
cd data
wget http://images.cocodataset.org/zips/train2017.zip
wget http://images.cocodataset.org/zips/val2017.zip
wget http://images.cocodataset.org/zips/test2017.zip
wget http://images.cocodataset.org/annotations/annotations_trainval2017.zip
wget http://images.cocodataset.org/annotations/image_info_test2017.zip
cd ..
```
Having downloaded COCO dataset manually you should be able to load with the `ydshieh/coc_dataset_script` dataset loading script:
```py
import os
import datasets
COCO_DIR = os.path.join(os.getcwd(), "data")
ds = datasets.load_dataset("ydshieh/coco_dataset_script", "2017", data_dir=COCO_DIR)
```
### Create a model from a vision encoder model and a text encoder model
We can either load a CLIP-like vision-text dual encoder model from an existing dual encoder model, or
by using a pre-trained vision encoder model and a pre-trained text encoder model.
If you wish to load an existing dual encoder model, please use the `--model_name_or_path` argument. If
you want to use separate pre-trained vision and text models, please use the
`--vision_model_name_or_path` and `--text_model_name_or_path` arguments instead.
### Train the model
Finally, we can run the example script to train the model:
```bash
python examples/tensorflow/contrastive-image-text/run_clip.py \
--output_dir ./clip-roberta-finetuned \
--vision_model_name_or_path openai/clip-vit-base-patch32 \
--text_model_name_or_path FacebookAI/roberta-base \
--data_dir $PWD/data \
--dataset_name ydshieh/coco_dataset_script \
--dataset_config_name=2017 \
--image_column image_path \
--caption_column caption \
--remove_unused_columns=False \
--do_train --do_eval \
--per_device_train_batch_size="64" \
--per_device_eval_batch_size="64" \
--learning_rate="5e-5" --warmup_steps="0" --weight_decay 0.1 \
--overwrite_output_dir \
--push_to_hub
```
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/benchmarking/run_benchmark_tf.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2018 The HuggingFace Inc. team.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Benchmarking the library on inference and training in TensorFlow"""
from transformers import HfArgumentParser, TensorFlowBenchmark, TensorFlowBenchmarkArguments
def main():
parser = HfArgumentParser(TensorFlowBenchmarkArguments)
benchmark_args = parser.parse_args_into_dataclasses()[0]
benchmark = TensorFlowBenchmark(args=benchmark_args)
try:
benchmark_args = parser.parse_args_into_dataclasses()[0]
except ValueError as e:
arg_error_msg = "Arg --no_{0} is no longer used, please use --no-{0} instead."
begin_error_msg = " ".join(str(e).split(" ")[:-1])
full_error_msg = ""
depreciated_args = eval(str(e).split(" ")[-1])
wrong_args = []
for arg in depreciated_args:
# arg[2:] removes '--'
if arg[2:] in TensorFlowBenchmark.deprecated_args:
# arg[5:] removes '--no_'
full_error_msg += arg_error_msg.format(arg[5:])
else:
wrong_args.append(arg)
if len(wrong_args) > 0:
full_error_msg = full_error_msg + begin_error_msg + str(wrong_args)
raise ValueError(full_error_msg)
benchmark.run()
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/benchmarking/requirements.txt | tensorflow >= 2.3 | 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/benchmarking/plot_csv_file.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import csv
from collections import defaultdict
from dataclasses import dataclass, field
from typing import List, Optional
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import ScalarFormatter
from transformers import HfArgumentParser
def list_field(default=None, metadata=None):
return field(default_factory=lambda: default, metadata=metadata)
@dataclass
class PlotArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
csv_file: str = field(
metadata={"help": "The csv file to plot."},
)
plot_along_batch: bool = field(
default=False,
metadata={"help": "Whether to plot along batch size or sequence length. Defaults to sequence length."},
)
is_time: bool = field(
default=False,
metadata={"help": "Whether the csv file has time results or memory results. Defaults to memory results."},
)
no_log_scale: bool = field(
default=False,
metadata={"help": "Disable logarithmic scale when plotting"},
)
is_train: bool = field(
default=False,
metadata={
"help": "Whether the csv file has training results or inference results. Defaults to inference results."
},
)
figure_png_file: Optional[str] = field(
default=None,
metadata={"help": "Filename under which the plot will be saved. If unused no plot is saved."},
)
short_model_names: Optional[List[str]] = list_field(
default=None, metadata={"help": "List of model names that are used instead of the ones in the csv file."}
)
def can_convert_to_int(string):
try:
int(string)
return True
except ValueError:
return False
def can_convert_to_float(string):
try:
float(string)
return True
except ValueError:
return False
class Plot:
def __init__(self, args):
self.args = args
self.result_dict = defaultdict(lambda: {"bsz": [], "seq_len": [], "result": {}})
with open(self.args.csv_file, newline="") as csv_file:
reader = csv.DictReader(csv_file)
for row in reader:
model_name = row["model"]
self.result_dict[model_name]["bsz"].append(int(row["batch_size"]))
self.result_dict[model_name]["seq_len"].append(int(row["sequence_length"]))
if can_convert_to_int(row["result"]):
# value is not None
self.result_dict[model_name]["result"][
(int(row["batch_size"]), int(row["sequence_length"]))
] = int(row["result"])
elif can_convert_to_float(row["result"]):
# value is not None
self.result_dict[model_name]["result"][
(int(row["batch_size"]), int(row["sequence_length"]))
] = float(row["result"])
def plot(self):
fig, ax = plt.subplots()
title_str = "Time usage" if self.args.is_time else "Memory usage"
title_str = title_str + " for training" if self.args.is_train else title_str + " for inference"
if not self.args.no_log_scale:
# set logarithm scales
ax.set_xscale("log")
ax.set_yscale("log")
for axis in [ax.xaxis, ax.yaxis]:
axis.set_major_formatter(ScalarFormatter())
for model_name_idx, model_name in enumerate(self.result_dict.keys()):
batch_sizes = sorted(set(self.result_dict[model_name]["bsz"]))
sequence_lengths = sorted(set(self.result_dict[model_name]["seq_len"]))
results = self.result_dict[model_name]["result"]
(x_axis_array, inner_loop_array) = (
(batch_sizes, sequence_lengths) if self.args.plot_along_batch else (sequence_lengths, batch_sizes)
)
label_model_name = (
model_name if self.args.short_model_names is None else self.args.short_model_names[model_name_idx]
)
for inner_loop_value in inner_loop_array:
if self.args.plot_along_batch:
y_axis_array = np.asarray(
[results[(x, inner_loop_value)] for x in x_axis_array if (x, inner_loop_value) in results],
dtype=int,
)
else:
y_axis_array = np.asarray(
[results[(inner_loop_value, x)] for x in x_axis_array if (inner_loop_value, x) in results],
dtype=np.float32,
)
(x_axis_label, inner_loop_label) = (
("batch_size", "len") if self.args.plot_along_batch else ("in #tokens", "bsz")
)
x_axis_array = np.asarray(x_axis_array, int)[: len(y_axis_array)]
plt.scatter(
x_axis_array, y_axis_array, label=f"{label_model_name} - {inner_loop_label}: {inner_loop_value}"
)
plt.plot(x_axis_array, y_axis_array, "--")
title_str += f" {label_model_name} vs."
title_str = title_str[:-4]
y_axis_label = "Time in s" if self.args.is_time else "Memory in MB"
# plot
plt.title(title_str)
plt.xlabel(x_axis_label)
plt.ylabel(y_axis_label)
plt.legend()
if self.args.figure_png_file is not None:
plt.savefig(self.args.figure_png_file)
else:
plt.show()
def main():
parser = HfArgumentParser(PlotArguments)
plot_args = parser.parse_args_into_dataclasses()[0]
plot = Plot(args=plot_args)
plot.plot()
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/benchmarking/README.md | <!---
Copyright 2020 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# 🤗 Benchmark results
Here, you can find a list of the different benchmark results created by the community.
If you would like to list benchmark results on your favorite models of the [model hub](https://huggingface.co/models) here, please open a Pull Request and add it below.
| Benchmark description | Results | Environment info | Author |
|:----------|:-------------|:-------------|------:|
| PyTorch Benchmark on inference for `google-bert/bert-base-cased` |[memory](https://github.com/patrickvonplaten/files_to_link_to/blob/master/bert_benchmark/inference_memory.csv) | [env](https://github.com/patrickvonplaten/files_to_link_to/blob/master/bert_benchmark/env.csv) | [Partick von Platen](https://github.com/patrickvonplaten) |
| PyTorch Benchmark on inference for `google-bert/bert-base-cased` |[time](https://github.com/patrickvonplaten/files_to_link_to/blob/master/bert_benchmark/inference_time.csv) | [env](https://github.com/patrickvonplaten/files_to_link_to/blob/master/bert_benchmark/env.csv) | [Partick von Platen](https://github.com/patrickvonplaten) |
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/question-answering/run_qa.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2020 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library models for question answering.
"""
# You can also adapt this script on your own question answering task. Pointers for this are left as comments.
import json
import logging
import os
import sys
import warnings
from dataclasses import dataclass, field
from pathlib import Path
from typing import Optional
import evaluate
import tensorflow as tf
from datasets import load_dataset
from packaging.version import parse
from utils_qa import postprocess_qa_predictions
import transformers
from transformers import (
AutoConfig,
AutoTokenizer,
EvalPrediction,
HfArgumentParser,
PreTrainedTokenizerFast,
PushToHubCallback,
TFAutoModelForQuestionAnswering,
TFTrainingArguments,
create_optimizer,
set_seed,
)
from transformers.utils import CONFIG_NAME, TF2_WEIGHTS_NAME, check_min_version, send_example_telemetry
try:
import tf_keras as keras
except (ModuleNotFoundError, ImportError):
import keras
if parse(keras.__version__).major > 2:
raise ValueError(
"Your currently installed version of Keras is Keras 3, but this is not yet supported in "
"Transformers. Please install the backwards-compatible tf-keras package with "
"`pip install tf-keras`."
)
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
logger = logging.getLogger(__name__)
# region Arguments
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Path to directory to store the pretrained models downloaded from huggingface.co"},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input test data file to evaluate the perplexity on (a text file)."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_seq_length: int = field(
default=384,
metadata={
"help": (
"The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
pad_to_max_length: bool = field(
default=False,
metadata={
"help": (
"Whether to pad all samples to `max_seq_length`. If False, will pad the samples dynamically when"
" batching to the maximum length in the batch (which can be faster on GPU but will be slower on TPU)."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
version_2_with_negative: bool = field(
default=False, metadata={"help": "If true, some of the examples do not have an answer."}
)
null_score_diff_threshold: float = field(
default=0.0,
metadata={
"help": (
"The threshold used to select the null answer: if the best answer has a score that is less than "
"the score of the null answer minus this threshold, the null answer is selected for this example. "
"Only useful when `version_2_with_negative=True`."
)
},
)
doc_stride: int = field(
default=128,
metadata={"help": "When splitting up a long document into chunks, how much stride to take between chunks."},
)
n_best_size: int = field(
default=20,
metadata={"help": "The total number of n-best predictions to generate when looking for an answer."},
)
max_answer_length: int = field(
default=30,
metadata={
"help": (
"The maximum length of an answer that can be generated. This is needed because the start "
"and end predictions are not conditioned on one another."
)
},
)
def __post_init__(self):
if (
self.dataset_name is None
and self.train_file is None
and self.validation_file is None
and self.test_file is None
):
raise ValueError("Need either a dataset name or a training/validation file/test_file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
if self.test_file is not None:
extension = self.test_file.split(".")[-1]
assert extension in ["csv", "json"], "`test_file` should be a csv or a json file."
# endregion
# region Helper classes
class SavePretrainedCallback(keras.callbacks.Callback):
# Hugging Face models have a save_pretrained() method that saves both the weights and the necessary
# metadata to allow them to be loaded as a pretrained model in future. This is a simple Keras callback
# that saves the model with this method after each epoch.
def __init__(self, output_dir, **kwargs):
super().__init__()
self.output_dir = output_dir
def on_epoch_end(self, epoch, logs=None):
self.model.save_pretrained(self.output_dir)
# endregion
def main():
# region Argument parsing
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TFTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_qa", model_args, data_args, framework="tensorflow")
output_dir = Path(training_args.output_dir)
output_dir.mkdir(parents=True, exist_ok=True)
# endregion
# region Checkpoints
checkpoint = None
if len(os.listdir(training_args.output_dir)) > 0 and not training_args.overwrite_output_dir:
if (output_dir / CONFIG_NAME).is_file() and (output_dir / TF2_WEIGHTS_NAME).is_file():
checkpoint = output_dir
logger.info(
f"Checkpoint detected, resuming training from checkpoint in {training_args.output_dir}. To avoid this"
" behavior, change the `--output_dir` or add `--overwrite_output_dir` to train from scratch."
)
else:
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to continue regardless."
)
# endregion
# region Logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
handlers=[logging.StreamHandler(sys.stdout)],
)
logger.setLevel(logging.INFO if training_args.should_log else logging.WARN)
# Set the verbosity to info of the Transformers logger (on main process only):
if training_args.should_log:
transformers.utils.logging.set_verbosity_info()
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
logger.info(f"Training/evaluation parameters {training_args}")
# endregion
# Set seed before initializing model.
set_seed(training_args.seed)
# region Load Data
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
#
# In distributed training, the load_dataset function guarantee that only one local process can concurrently
# download the dataset.
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if data_args.test_file is not None:
data_files["test"] = data_args.test_file
extension = data_args.test_file.split(".")[-1]
datasets = load_dataset(
extension,
data_files=data_files,
field="data",
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# endregion
# region Load pretrained model and tokenizer
#
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
config = AutoConfig.from_pretrained(
model_args.config_name if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=True,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
# endregion
# region Tokenizer check: this script requires a fast tokenizer.
if not isinstance(tokenizer, PreTrainedTokenizerFast):
raise ValueError(
"This example script only works for models that have a fast tokenizer. Checkout the big table of models at"
" https://huggingface.co/transformers/index.html#supported-frameworks to find the model types that meet"
" this requirement"
)
# endregion
# region Preprocessing the datasets
# Preprocessing is slightly different for training and evaluation.
if training_args.do_train:
column_names = datasets["train"].column_names
elif training_args.do_eval:
column_names = datasets["validation"].column_names
else:
column_names = datasets["test"].column_names
question_column_name = "question" if "question" in column_names else column_names[0]
context_column_name = "context" if "context" in column_names else column_names[1]
answer_column_name = "answers" if "answers" in column_names else column_names[2]
# Padding side determines if we do (question|context) or (context|question).
pad_on_right = tokenizer.padding_side == "right"
if data_args.max_seq_length > tokenizer.model_max_length:
logger.warning(
f"The max_seq_length passed ({data_args.max_seq_length}) is larger than the maximum length for the "
f"model ({tokenizer.model_max_length}). Using max_seq_length={tokenizer.model_max_length}."
)
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
if data_args.pad_to_max_length or isinstance(training_args.strategy, tf.distribute.TPUStrategy):
logger.info("Padding all batches to max length because argument was set or we're on TPU.")
padding = "max_length"
else:
padding = False
# Training preprocessing
def prepare_train_features(examples):
# Some of the questions have lots of whitespace on the left, which is not useful and will make the
# truncation of the context fail (the tokenized question will take a lots of space). So we remove that
# left whitespace
examples[question_column_name] = [q.lstrip() for q in examples[question_column_name]]
# Tokenize our examples with truncation and maybe padding, but keep the overflows using a stride. This results
# in one example possible giving several features when a context is long, each of those features having a
# context that overlaps a bit the context of the previous feature.
tokenized_examples = tokenizer(
examples[question_column_name if pad_on_right else context_column_name],
examples[context_column_name if pad_on_right else question_column_name],
truncation="only_second" if pad_on_right else "only_first",
max_length=max_seq_length,
stride=data_args.doc_stride,
return_overflowing_tokens=True,
return_offsets_mapping=True,
padding=padding,
)
# Since one example might give us several features if it has a long context, we need a map from a feature to
# its corresponding example. This key gives us just that.
sample_mapping = tokenized_examples.pop("overflow_to_sample_mapping")
# The offset mappings will give us a map from token to character position in the original context. This will
# help us compute the start_positions and end_positions.
offset_mapping = tokenized_examples.pop("offset_mapping")
# Let's label those examples!
tokenized_examples["start_positions"] = []
tokenized_examples["end_positions"] = []
for i, offsets in enumerate(offset_mapping):
# We will label impossible answers with the index of the CLS token.
input_ids = tokenized_examples["input_ids"][i]
cls_index = input_ids.index(tokenizer.cls_token_id)
# Grab the sequence corresponding to that example (to know what is the context and what is the question).
sequence_ids = tokenized_examples.sequence_ids(i)
# One example can give several spans, this is the index of the example containing this span of text.
sample_index = sample_mapping[i]
answers = examples[answer_column_name][sample_index]
# If no answers are given, set the cls_index as answer.
if len(answers["answer_start"]) == 0:
tokenized_examples["start_positions"].append(cls_index)
tokenized_examples["end_positions"].append(cls_index)
else:
# Start/end character index of the answer in the text.
start_char = answers["answer_start"][0]
end_char = start_char + len(answers["text"][0])
# Start token index of the current span in the text.
token_start_index = 0
while sequence_ids[token_start_index] != (1 if pad_on_right else 0):
token_start_index += 1
# End token index of the current span in the text.
token_end_index = len(input_ids) - 1
while sequence_ids[token_end_index] != (1 if pad_on_right else 0):
token_end_index -= 1
# Detect if the answer is out of the span (in which case this feature is labeled with the CLS index).
if not (offsets[token_start_index][0] <= start_char and offsets[token_end_index][1] >= end_char):
tokenized_examples["start_positions"].append(cls_index)
tokenized_examples["end_positions"].append(cls_index)
else:
# Otherwise move the token_start_index and token_end_index to the two ends of the answer.
# Note: we could go after the last offset if the answer is the last word (edge case).
while token_start_index < len(offsets) and offsets[token_start_index][0] <= start_char:
token_start_index += 1
tokenized_examples["start_positions"].append(token_start_index - 1)
while offsets[token_end_index][1] >= end_char:
token_end_index -= 1
tokenized_examples["end_positions"].append(token_end_index + 1)
return tokenized_examples
processed_datasets = {}
if training_args.do_train:
if "train" not in datasets:
raise ValueError("--do_train requires a train dataset")
train_dataset = datasets["train"]
if data_args.max_train_samples is not None:
# We will select sample from whole data if argument is specified
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
# Create train feature from dataset
train_dataset = train_dataset.map(
prepare_train_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_train_samples is not None:
# Number of samples might increase during Feature Creation, We select only specified max samples
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
processed_datasets["train"] = train_dataset
# Validation preprocessing
def prepare_validation_features(examples):
# Some of the questions have lots of whitespace on the left, which is not useful and will make the
# truncation of the context fail (the tokenized question will take a lots of space). So we remove that
# left whitespace
examples[question_column_name] = [q.lstrip() for q in examples[question_column_name]]
# Tokenize our examples with truncation and maybe padding, but keep the overflows using a stride. This results
# in one example possible giving several features when a context is long, each of those features having a
# context that overlaps a bit the context of the previous feature.
tokenized_examples = tokenizer(
examples[question_column_name if pad_on_right else context_column_name],
examples[context_column_name if pad_on_right else question_column_name],
truncation="only_second" if pad_on_right else "only_first",
max_length=max_seq_length,
stride=data_args.doc_stride,
return_overflowing_tokens=True,
return_offsets_mapping=True,
padding=padding,
)
# Since one example might give us several features if it has a long context, we need a map from a feature to
# its corresponding example. This key gives us just that.
sample_mapping = tokenized_examples.pop("overflow_to_sample_mapping")
# For evaluation, we will need to convert our predictions to substrings of the context, so we keep the
# corresponding example_id and we will store the offset mappings.
tokenized_examples["example_id"] = []
for i in range(len(tokenized_examples["input_ids"])):
# Grab the sequence corresponding to that example (to know what is the context and what is the question).
sequence_ids = tokenized_examples.sequence_ids(i)
context_index = 1 if pad_on_right else 0
# One example can give several spans, this is the index of the example containing this span of text.
sample_index = sample_mapping[i]
tokenized_examples["example_id"].append(examples["id"][sample_index])
# Set to None the offset_mapping that are not part of the context so it's easy to determine if a token
# position is part of the context or not.
tokenized_examples["offset_mapping"][i] = [
(o if sequence_ids[k] == context_index else None)
for k, o in enumerate(tokenized_examples["offset_mapping"][i])
]
return tokenized_examples
if training_args.do_eval:
if "validation" not in datasets:
raise ValueError("--do_eval requires a validation dataset")
eval_examples = datasets["validation"]
if data_args.max_eval_samples is not None:
# We will select sample from whole data
max_eval_samples = min(len(eval_examples), data_args.max_eval_samples)
eval_examples = eval_examples.select(range(max_eval_samples))
# Validation Feature Creation
eval_dataset = eval_examples.map(
prepare_validation_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_eval_samples is not None:
# During Feature creation dataset samples might increase, we will select required samples again
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
processed_datasets["validation"] = eval_dataset
if training_args.do_predict:
if "test" not in datasets:
raise ValueError("--do_predict requires a test dataset")
predict_examples = datasets["test"]
if data_args.max_predict_samples is not None:
# We will select sample from whole data
predict_examples = predict_examples.select(range(data_args.max_predict_samples))
# Predict Feature Creation
predict_dataset = predict_examples.map(
prepare_validation_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_predict_samples is not None:
# During Feature creation dataset samples might increase, we will select required samples again
max_predict_samples = min(len(predict_dataset), data_args.max_predict_samples)
predict_dataset = predict_dataset.select(range(max_predict_samples))
processed_datasets["test"] = predict_dataset
# endregion
# region Metrics and Post-processing:
def post_processing_function(examples, features, predictions, stage="eval"):
# Post-processing: we match the start logits and end logits to answers in the original context.
predictions = postprocess_qa_predictions(
examples=examples,
features=features,
predictions=predictions,
version_2_with_negative=data_args.version_2_with_negative,
n_best_size=data_args.n_best_size,
max_answer_length=data_args.max_answer_length,
null_score_diff_threshold=data_args.null_score_diff_threshold,
output_dir=training_args.output_dir,
prefix=stage,
)
# Format the result to the format the metric expects.
if data_args.version_2_with_negative:
formatted_predictions = [
{"id": k, "prediction_text": v, "no_answer_probability": 0.0} for k, v in predictions.items()
]
else:
formatted_predictions = [{"id": k, "prediction_text": v} for k, v in predictions.items()]
references = [{"id": ex["id"], "answers": ex[answer_column_name]} for ex in examples]
return EvalPrediction(predictions=formatted_predictions, label_ids=references)
metric = evaluate.load(
"squad_v2" if data_args.version_2_with_negative else "squad", cache_dir=model_args.cache_dir
)
def compute_metrics(p: EvalPrediction):
return metric.compute(predictions=p.predictions, references=p.label_ids)
# endregion
with training_args.strategy.scope():
dataset_options = tf.data.Options()
dataset_options.experimental_distribute.auto_shard_policy = tf.data.experimental.AutoShardPolicy.OFF
num_replicas = training_args.strategy.num_replicas_in_sync
# region Load model and prepare datasets
if checkpoint is None:
model_path = model_args.model_name_or_path
else:
model_path = checkpoint
model = TFAutoModelForQuestionAnswering.from_pretrained(
model_path,
config=config,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
if training_args.do_train:
training_dataset = model.prepare_tf_dataset(
processed_datasets["train"],
shuffle=True,
batch_size=training_args.per_device_train_batch_size * num_replicas,
tokenizer=tokenizer,
)
training_dataset = training_dataset.with_options(dataset_options)
num_train_steps = len(training_dataset) * training_args.num_train_epochs
if training_args.warmup_steps > 0:
num_warmup_steps = training_args.warmup_steps
elif training_args.warmup_ratio > 0:
num_warmup_steps = int(num_train_steps * training_args.warmup_ratio)
else:
num_warmup_steps = 0
optimizer, schedule = create_optimizer(
init_lr=training_args.learning_rate,
num_train_steps=len(training_dataset) * training_args.num_train_epochs,
num_warmup_steps=num_warmup_steps,
adam_beta1=training_args.adam_beta1,
adam_beta2=training_args.adam_beta2,
adam_epsilon=training_args.adam_epsilon,
weight_decay_rate=training_args.weight_decay,
adam_global_clipnorm=training_args.max_grad_norm,
)
# Transformers models compute the right loss for their task by default when labels are passed, and will
# use this for training unless you specify your own loss function in compile().
model.compile(optimizer=optimizer, jit_compile=training_args.xla, metrics=["accuracy"])
else:
# Optimizer doesn't matter as it won't be used anyway
model.compile(optimizer="sgd", jit_compile=training_args.xla, metrics=["accuracy"])
training_dataset = None
if training_args.do_eval:
eval_dataset = model.prepare_tf_dataset(
processed_datasets["validation"],
shuffle=False,
batch_size=training_args.per_device_train_batch_size * num_replicas,
tokenizer=tokenizer,
)
eval_dataset = eval_dataset.with_options(dataset_options)
else:
eval_dataset = None
if training_args.do_predict:
predict_dataset = model.prepare_tf_dataset(
processed_datasets["test"],
shuffle=False,
batch_size=training_args.per_device_eval_batch_size * num_replicas,
tokenizer=tokenizer,
)
predict_dataset = predict_dataset.with_options(dataset_options)
else:
predict_dataset = None
# endregion
# region Preparing push_to_hub and model card
push_to_hub_model_id = training_args.push_to_hub_model_id
model_name = model_args.model_name_or_path.split("/")[-1]
if not push_to_hub_model_id:
if data_args.dataset_name is not None:
push_to_hub_model_id = f"{model_name}-finetuned-{data_args.dataset_name}"
else:
push_to_hub_model_id = f"{model_name}-finetuned-question-answering"
model_card_kwargs = {"finetuned_from": model_args.model_name_or_path, "tasks": "question-answering"}
if data_args.dataset_name is not None:
model_card_kwargs["dataset_tags"] = data_args.dataset_name
if data_args.dataset_config_name is not None:
model_card_kwargs["dataset_args"] = data_args.dataset_config_name
model_card_kwargs["dataset"] = f"{data_args.dataset_name} {data_args.dataset_config_name}"
else:
model_card_kwargs["dataset"] = data_args.dataset_name
if training_args.push_to_hub:
callbacks = [
PushToHubCallback(
output_dir=training_args.output_dir,
hub_model_id=push_to_hub_model_id,
hub_token=training_args.push_to_hub_token,
tokenizer=tokenizer,
**model_card_kwargs,
)
]
else:
callbacks = []
# endregion
# region Training and Evaluation
if training_args.do_train:
# Note that the validation and test datasets have been processed in a different way to the
# training datasets in this example, and so they don't have the same label structure.
# As such, we don't pass them directly to Keras, but instead get model predictions to evaluate
# after training.
model.fit(training_dataset, epochs=int(training_args.num_train_epochs), callbacks=callbacks)
if training_args.do_eval:
logger.info("*** Evaluation ***")
# In this example, we compute advanced metrics at the end of training, but
# if you'd like to compute metrics every epoch that are too complex to be written as
# standard Keras metrics, you can use our KerasMetricCallback. See
# https://huggingface.co/docs/transformers/main/en/main_classes/keras_callbacks
eval_predictions = model.predict(eval_dataset)
if isinstance(eval_predictions.start_logits, tf.RaggedTensor):
# If predictions are RaggedTensor, we densify them. Since they are logits, padding with 0 is a bad idea!
# The reason is that a logit of 0 can often end up as quite a high probability value, sometimes even
# the highest probability in a sample. Instead, we use a large negative value, which ensures that the
# padding positions are correctly masked.
eval_start_logits = eval_predictions.start_logits.to_tensor(default_value=-1000).numpy()
eval_end_logits = eval_predictions.end_logits.to_tensor(default_value=-1000).numpy()
else:
eval_start_logits = eval_predictions.start_logits
eval_end_logits = eval_predictions.end_logits
post_processed_eval = post_processing_function(
datasets["validation"],
processed_datasets["validation"],
(eval_start_logits, eval_end_logits),
)
metrics = compute_metrics(post_processed_eval)
logging.info("Evaluation metrics:")
for metric, value in metrics.items():
logging.info(f"{metric}: {value:.3f}")
if training_args.output_dir is not None:
output_eval_file = os.path.join(training_args.output_dir, "all_results.json")
with open(output_eval_file, "w") as writer:
writer.write(json.dumps(metrics))
# endregion
# region Prediction
if training_args.do_predict:
logger.info("*** Predict ***")
test_predictions = model.predict(predict_dataset)
if isinstance(test_predictions.start_logits, tf.RaggedTensor):
# If predictions are RaggedTensor, we densify them. Since they are logits, padding with 0 is a bad idea!
# The reason is that a logit of 0 can often end up as quite a high probability value, sometimes even
# the highest probability in a sample. Instead, we use a large negative value, which ensures that the
# padding positions are correctly masked.
test_start_logits = test_predictions.start_logits.to_tensor(default_value=-1000).numpy()
test_end_logits = test_predictions.end_logits.to_tensor(default_value=-1000).numpy()
else:
test_start_logits = test_predictions.start_logits
test_end_logits = test_predictions.end_logits
post_processed_test = post_processing_function(
datasets["test"],
processed_datasets["test"],
(test_start_logits, test_end_logits),
)
metrics = compute_metrics(post_processed_test)
logging.info("Test metrics:")
for metric, value in metrics.items():
logging.info(f"{metric}: {value:.3f}")
# endregion
if training_args.output_dir is not None and not training_args.push_to_hub:
# If we're not pushing to hub, at least save a local copy when we're done
model.save_pretrained(training_args.output_dir)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/question-answering/requirements.txt | datasets >= 1.4.0
tensorflow >= 2.3.0
evaluate >= 0.2.0 | 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/question-answering/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Question answering example
This folder contains the `run_qa.py` script, demonstrating *question answering* with the 🤗 Transformers library.
For straightforward use-cases you may be able to use this script without modification, although we have also
included comments in the code to indicate areas that you may need to adapt to your own projects.
### Usage notes
Note that when contexts are long they may be split into multiple training cases, not all of which may contain
the answer span.
As-is, the example script will train on SQuAD or any other question-answering dataset formatted the same way, and can handle user
inputs as well.
### Multi-GPU and TPU usage
By default, the script uses a `MirroredStrategy` and will use multiple GPUs effectively if they are available. TPUs
can also be used by passing the name of the TPU resource with the `--tpu` argument. There are some issues surrounding
these strategies and our models right now, which are most likely to appear in the evaluation/prediction steps. We're
actively working on better support for multi-GPU and TPU training in TF, but if you encounter problems a quick
workaround is to train in the multi-GPU or TPU context and then perform predictions outside of it.
### Memory usage and data loading
One thing to note is that all data is loaded into memory in this script. Most question answering datasets are small
enough that this is not an issue, but if you have a very large dataset you will need to modify the script to handle
data streaming. This is particularly challenging for TPUs, given the stricter requirements and the sheer volume of data
required to keep them fed. A full explanation of all the possible pitfalls is a bit beyond this example script and
README, but for more information you can see the 'Input Datasets' section of
[this document](https://www.tensorflow.org/guide/tpu).
### Example command
```bash
python run_qa.py \
--model_name_or_path distilbert/distilbert-base-cased \
--output_dir output \
--dataset_name squad \
--do_train \
--do_eval \
```
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/question-answering/utils_qa.py | # coding=utf-8
# Copyright 2020 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Post-processing utilities for question answering.
"""
import collections
import json
import logging
import os
from typing import Optional, Tuple
import numpy as np
from tqdm.auto import tqdm
logger = logging.getLogger(__name__)
def postprocess_qa_predictions(
examples,
features,
predictions: Tuple[np.ndarray, np.ndarray],
version_2_with_negative: bool = False,
n_best_size: int = 20,
max_answer_length: int = 30,
null_score_diff_threshold: float = 0.0,
output_dir: Optional[str] = None,
prefix: Optional[str] = None,
log_level: Optional[int] = logging.WARNING,
):
"""
Post-processes the predictions of a question-answering model to convert them to answers that are substrings of the
original contexts. This is the base postprocessing functions for models that only return start and end logits.
Args:
examples: The non-preprocessed dataset (see the main script for more information).
features: The processed dataset (see the main script for more information).
predictions (:obj:`Tuple[np.ndarray, np.ndarray]`):
The predictions of the model: two arrays containing the start logits and the end logits respectively. Its
first dimension must match the number of elements of :obj:`features`.
version_2_with_negative (:obj:`bool`, `optional`, defaults to :obj:`False`):
Whether or not the underlying dataset contains examples with no answers.
n_best_size (:obj:`int`, `optional`, defaults to 20):
The total number of n-best predictions to generate when looking for an answer.
max_answer_length (:obj:`int`, `optional`, defaults to 30):
The maximum length of an answer that can be generated. This is needed because the start and end predictions
are not conditioned on one another.
null_score_diff_threshold (:obj:`float`, `optional`, defaults to 0):
The threshold used to select the null answer: if the best answer has a score that is less than the score of
the null answer minus this threshold, the null answer is selected for this example (note that the score of
the null answer for an example giving several features is the minimum of the scores for the null answer on
each feature: all features must be aligned on the fact they `want` to predict a null answer).
Only useful when :obj:`version_2_with_negative` is :obj:`True`.
output_dir (:obj:`str`, `optional`):
If provided, the dictionaries of predictions, n_best predictions (with their scores and logits) and, if
:obj:`version_2_with_negative=True`, the dictionary of the scores differences between best and null
answers, are saved in `output_dir`.
prefix (:obj:`str`, `optional`):
If provided, the dictionaries mentioned above are saved with `prefix` added to their names.
log_level (:obj:`int`, `optional`, defaults to ``logging.WARNING``):
``logging`` log level (e.g., ``logging.WARNING``)
"""
if len(predictions) != 2:
raise ValueError("`predictions` should be a tuple with two elements (start_logits, end_logits).")
all_start_logits, all_end_logits = predictions
if len(predictions[0]) != len(features):
raise ValueError(f"Got {len(predictions[0])} predictions and {len(features)} features.")
# Build a map example to its corresponding features.
example_id_to_index = {k: i for i, k in enumerate(examples["id"])}
features_per_example = collections.defaultdict(list)
for i, feature in enumerate(features):
features_per_example[example_id_to_index[feature["example_id"]]].append(i)
# The dictionaries we have to fill.
all_predictions = collections.OrderedDict()
all_nbest_json = collections.OrderedDict()
if version_2_with_negative:
scores_diff_json = collections.OrderedDict()
# Logging.
logger.setLevel(log_level)
logger.info(f"Post-processing {len(examples)} example predictions split into {len(features)} features.")
# Let's loop over all the examples!
for example_index, example in enumerate(tqdm(examples)):
# Those are the indices of the features associated to the current example.
feature_indices = features_per_example[example_index]
min_null_prediction = None
prelim_predictions = []
# Looping through all the features associated to the current example.
for feature_index in feature_indices:
# We grab the predictions of the model for this feature.
start_logits = all_start_logits[feature_index]
end_logits = all_end_logits[feature_index]
# This is what will allow us to map some the positions in our logits to span of texts in the original
# context.
offset_mapping = features[feature_index]["offset_mapping"]
# Optional `token_is_max_context`, if provided we will remove answers that do not have the maximum context
# available in the current feature.
token_is_max_context = features[feature_index].get("token_is_max_context", None)
# Update minimum null prediction.
feature_null_score = start_logits[0] + end_logits[0]
if min_null_prediction is None or min_null_prediction["score"] > feature_null_score:
min_null_prediction = {
"offsets": (0, 0),
"score": feature_null_score,
"start_logit": start_logits[0],
"end_logit": end_logits[0],
}
# Go through all possibilities for the `n_best_size` greater start and end logits.
start_indexes = np.argsort(start_logits)[-1 : -n_best_size - 1 : -1].tolist()
end_indexes = np.argsort(end_logits)[-1 : -n_best_size - 1 : -1].tolist()
for start_index in start_indexes:
for end_index in end_indexes:
# Don't consider out-of-scope answers, either because the indices are out of bounds or correspond
# to part of the input_ids that are not in the context.
if (
start_index >= len(offset_mapping)
or end_index >= len(offset_mapping)
or offset_mapping[start_index] is None
or len(offset_mapping[start_index]) < 2
or offset_mapping[end_index] is None
or len(offset_mapping[end_index]) < 2
):
continue
# Don't consider answers with a length that is either < 0 or > max_answer_length.
if end_index < start_index or end_index - start_index + 1 > max_answer_length:
continue
# Don't consider answer that don't have the maximum context available (if such information is
# provided).
if token_is_max_context is not None and not token_is_max_context.get(str(start_index), False):
continue
prelim_predictions.append(
{
"offsets": (offset_mapping[start_index][0], offset_mapping[end_index][1]),
"score": start_logits[start_index] + end_logits[end_index],
"start_logit": start_logits[start_index],
"end_logit": end_logits[end_index],
}
)
if version_2_with_negative and min_null_prediction is not None:
# Add the minimum null prediction
prelim_predictions.append(min_null_prediction)
null_score = min_null_prediction["score"]
# Only keep the best `n_best_size` predictions.
predictions = sorted(prelim_predictions, key=lambda x: x["score"], reverse=True)[:n_best_size]
# Add back the minimum null prediction if it was removed because of its low score.
if (
version_2_with_negative
and min_null_prediction is not None
and not any(p["offsets"] == (0, 0) for p in predictions)
):
predictions.append(min_null_prediction)
# Use the offsets to gather the answer text in the original context.
context = example["context"]
for pred in predictions:
offsets = pred.pop("offsets")
pred["text"] = context[offsets[0] : offsets[1]]
# In the very rare edge case we have not a single non-null prediction, we create a fake prediction to avoid
# failure.
if len(predictions) == 0 or (len(predictions) == 1 and predictions[0]["text"] == ""):
predictions.insert(0, {"text": "empty", "start_logit": 0.0, "end_logit": 0.0, "score": 0.0})
# Compute the softmax of all scores (we do it with numpy to stay independent from torch/tf in this file, using
# the LogSumExp trick).
scores = np.array([pred.pop("score") for pred in predictions])
exp_scores = np.exp(scores - np.max(scores))
probs = exp_scores / exp_scores.sum()
# Include the probabilities in our predictions.
for prob, pred in zip(probs, predictions):
pred["probability"] = prob
# Pick the best prediction. If the null answer is not possible, this is easy.
if not version_2_with_negative:
all_predictions[example["id"]] = predictions[0]["text"]
else:
# Otherwise we first need to find the best non-empty prediction.
i = 0
while predictions[i]["text"] == "":
i += 1
best_non_null_pred = predictions[i]
# Then we compare to the null prediction using the threshold.
score_diff = null_score - best_non_null_pred["start_logit"] - best_non_null_pred["end_logit"]
scores_diff_json[example["id"]] = float(score_diff) # To be JSON-serializable.
if score_diff > null_score_diff_threshold:
all_predictions[example["id"]] = ""
else:
all_predictions[example["id"]] = best_non_null_pred["text"]
# Make `predictions` JSON-serializable by casting np.float back to float.
all_nbest_json[example["id"]] = [
{k: (float(v) if isinstance(v, (np.float16, np.float32, np.float64)) else v) for k, v in pred.items()}
for pred in predictions
]
# If we have an output_dir, let's save all those dicts.
if output_dir is not None:
if not os.path.isdir(output_dir):
raise EnvironmentError(f"{output_dir} is not a directory.")
prediction_file = os.path.join(
output_dir, "predictions.json" if prefix is None else f"{prefix}_predictions.json"
)
nbest_file = os.path.join(
output_dir, "nbest_predictions.json" if prefix is None else f"{prefix}_nbest_predictions.json"
)
if version_2_with_negative:
null_odds_file = os.path.join(
output_dir, "null_odds.json" if prefix is None else f"{prefix}_null_odds.json"
)
logger.info(f"Saving predictions to {prediction_file}.")
with open(prediction_file, "w") as writer:
writer.write(json.dumps(all_predictions, indent=4) + "\n")
logger.info(f"Saving nbest_preds to {nbest_file}.")
with open(nbest_file, "w") as writer:
writer.write(json.dumps(all_nbest_json, indent=4) + "\n")
if version_2_with_negative:
logger.info(f"Saving null_odds to {null_odds_file}.")
with open(null_odds_file, "w") as writer:
writer.write(json.dumps(scores_diff_json, indent=4) + "\n")
return all_predictions
def postprocess_qa_predictions_with_beam_search(
examples,
features,
predictions: Tuple[np.ndarray, np.ndarray],
version_2_with_negative: bool = False,
n_best_size: int = 20,
max_answer_length: int = 30,
start_n_top: int = 5,
end_n_top: int = 5,
output_dir: Optional[str] = None,
prefix: Optional[str] = None,
log_level: Optional[int] = logging.WARNING,
):
"""
Post-processes the predictions of a question-answering model with beam search to convert them to answers that are substrings of the
original contexts. This is the postprocessing functions for models that return start and end logits, indices, as well as
cls token predictions.
Args:
examples: The non-preprocessed dataset (see the main script for more information).
features: The processed dataset (see the main script for more information).
predictions (:obj:`Tuple[np.ndarray, np.ndarray]`):
The predictions of the model: two arrays containing the start logits and the end logits respectively. Its
first dimension must match the number of elements of :obj:`features`.
version_2_with_negative (:obj:`bool`, `optional`, defaults to :obj:`False`):
Whether or not the underlying dataset contains examples with no answers.
n_best_size (:obj:`int`, `optional`, defaults to 20):
The total number of n-best predictions to generate when looking for an answer.
max_answer_length (:obj:`int`, `optional`, defaults to 30):
The maximum length of an answer that can be generated. This is needed because the start and end predictions
are not conditioned on one another.
start_n_top (:obj:`int`, `optional`, defaults to 5):
The number of top start logits too keep when searching for the :obj:`n_best_size` predictions.
end_n_top (:obj:`int`, `optional`, defaults to 5):
The number of top end logits too keep when searching for the :obj:`n_best_size` predictions.
output_dir (:obj:`str`, `optional`):
If provided, the dictionaries of predictions, n_best predictions (with their scores and logits) and, if
:obj:`version_2_with_negative=True`, the dictionary of the scores differences between best and null
answers, are saved in `output_dir`.
prefix (:obj:`str`, `optional`):
If provided, the dictionaries mentioned above are saved with `prefix` added to their names.
log_level (:obj:`int`, `optional`, defaults to ``logging.WARNING``):
``logging`` log level (e.g., ``logging.WARNING``)
"""
if len(predictions) != 5:
raise ValueError("`predictions` should be a tuple with five elements.")
start_top_log_probs, start_top_index, end_top_log_probs, end_top_index, cls_logits = predictions
if len(predictions[0]) != len(features):
raise ValueError(f"Got {len(predictions[0])} predictions and {len(features)} features.")
# Build a map example to its corresponding features.
example_id_to_index = {k: i for i, k in enumerate(examples["id"])}
features_per_example = collections.defaultdict(list)
for i, feature in enumerate(features):
features_per_example[example_id_to_index[feature["example_id"]]].append(i)
# The dictionaries we have to fill.
all_predictions = collections.OrderedDict()
all_nbest_json = collections.OrderedDict()
scores_diff_json = collections.OrderedDict() if version_2_with_negative else None
# Logging.
logger.setLevel(log_level)
logger.info(f"Post-processing {len(examples)} example predictions split into {len(features)} features.")
# Let's loop over all the examples!
for example_index, example in enumerate(tqdm(examples)):
# Those are the indices of the features associated to the current example.
feature_indices = features_per_example[example_index]
min_null_score = None
prelim_predictions = []
# Looping through all the features associated to the current example.
for feature_index in feature_indices:
# We grab the predictions of the model for this feature.
start_log_prob = start_top_log_probs[feature_index]
start_indexes = start_top_index[feature_index]
end_log_prob = end_top_log_probs[feature_index]
end_indexes = end_top_index[feature_index]
feature_null_score = cls_logits[feature_index]
# This is what will allow us to map some the positions in our logits to span of texts in the original
# context.
offset_mapping = features[feature_index]["offset_mapping"]
# Optional `token_is_max_context`, if provided we will remove answers that do not have the maximum context
# available in the current feature.
token_is_max_context = features[feature_index].get("token_is_max_context", None)
# Update minimum null prediction
if min_null_score is None or feature_null_score < min_null_score:
min_null_score = feature_null_score
# Go through all possibilities for the `n_start_top`/`n_end_top` greater start and end logits.
for i in range(start_n_top):
for j in range(end_n_top):
start_index = int(start_indexes[i])
j_index = i * end_n_top + j
end_index = int(end_indexes[j_index])
# Don't consider out-of-scope answers (last part of the test should be unnecessary because of the
# p_mask but let's not take any risk)
if (
start_index >= len(offset_mapping)
or end_index >= len(offset_mapping)
or offset_mapping[start_index] is None
or len(offset_mapping[start_index]) < 2
or offset_mapping[end_index] is None
or len(offset_mapping[end_index]) < 2
):
continue
# Don't consider answers with a length negative or > max_answer_length.
if end_index < start_index or end_index - start_index + 1 > max_answer_length:
continue
# Don't consider answer that don't have the maximum context available (if such information is
# provided).
if token_is_max_context is not None and not token_is_max_context.get(str(start_index), False):
continue
prelim_predictions.append(
{
"offsets": (offset_mapping[start_index][0], offset_mapping[end_index][1]),
"score": start_log_prob[i] + end_log_prob[j_index],
"start_log_prob": start_log_prob[i],
"end_log_prob": end_log_prob[j_index],
}
)
# Only keep the best `n_best_size` predictions.
predictions = sorted(prelim_predictions, key=lambda x: x["score"], reverse=True)[:n_best_size]
# Use the offsets to gather the answer text in the original context.
context = example["context"]
for pred in predictions:
offsets = pred.pop("offsets")
pred["text"] = context[offsets[0] : offsets[1]]
# In the very rare edge case we have not a single non-null prediction, we create a fake prediction to avoid
# failure.
if len(predictions) == 0:
# Without predictions min_null_score is going to be None and None will cause an exception later
min_null_score = -2e-6
predictions.insert(0, {"text": "", "start_logit": -1e-6, "end_logit": -1e-6, "score": min_null_score})
# Compute the softmax of all scores (we do it with numpy to stay independent from torch/tf in this file, using
# the LogSumExp trick).
scores = np.array([pred.pop("score") for pred in predictions])
exp_scores = np.exp(scores - np.max(scores))
probs = exp_scores / exp_scores.sum()
# Include the probabilities in our predictions.
for prob, pred in zip(probs, predictions):
pred["probability"] = prob
# Pick the best prediction and set the probability for the null answer.
all_predictions[example["id"]] = predictions[0]["text"]
if version_2_with_negative:
scores_diff_json[example["id"]] = float(min_null_score)
# Make `predictions` JSON-serializable by casting np.float back to float.
all_nbest_json[example["id"]] = [
{k: (float(v) if isinstance(v, (np.float16, np.float32, np.float64)) else v) for k, v in pred.items()}
for pred in predictions
]
# If we have an output_dir, let's save all those dicts.
if output_dir is not None:
if not os.path.isdir(output_dir):
raise EnvironmentError(f"{output_dir} is not a directory.")
prediction_file = os.path.join(
output_dir, "predictions.json" if prefix is None else f"{prefix}_predictions.json"
)
nbest_file = os.path.join(
output_dir, "nbest_predictions.json" if prefix is None else f"{prefix}_nbest_predictions.json"
)
if version_2_with_negative:
null_odds_file = os.path.join(
output_dir, "null_odds.json" if prefix is None else f"{prefix}_null_odds.json"
)
logger.info(f"Saving predictions to {prediction_file}.")
with open(prediction_file, "w") as writer:
writer.write(json.dumps(all_predictions, indent=4) + "\n")
logger.info(f"Saving nbest_preds to {nbest_file}.")
with open(nbest_file, "w") as writer:
writer.write(json.dumps(all_nbest_json, indent=4) + "\n")
if version_2_with_negative:
logger.info(f"Saving null_odds to {null_odds_file}.")
with open(null_odds_file, "w") as writer:
writer.write(json.dumps(scores_diff_json, indent=4) + "\n")
return all_predictions, scores_diff_json
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/multiple-choice/requirements.txt | sentencepiece != 0.1.92
protobuf
tensorflow >= 2.3
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/multiple-choice/run_swag.py | #!/usr/bin/env python
# coding=utf-8
# Copyright The HuggingFace Team and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library models for multiple choice.
"""
# You can also adapt this script on your own multiple choice task. Pointers for this are left as comments.
import json
import logging
import os
import sys
import warnings
from dataclasses import dataclass, field
from itertools import chain
from pathlib import Path
from typing import Optional, Union
import datasets
import tensorflow as tf
from datasets import load_dataset
import transformers
from transformers import (
CONFIG_NAME,
TF2_WEIGHTS_NAME,
AutoConfig,
AutoTokenizer,
DefaultDataCollator,
HfArgumentParser,
PushToHubCallback,
TFAutoModelForMultipleChoice,
TFTrainingArguments,
create_optimizer,
set_seed,
)
from transformers.tokenization_utils_base import PreTrainedTokenizerBase
from transformers.utils import PaddingStrategy, check_min_version, send_example_telemetry
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
logger = logging.getLogger(__name__)
# region Helper classes and functions
@dataclass
class DataCollatorForMultipleChoice:
"""
Data collator that will dynamically pad the inputs for multiple choice received.
Args:
tokenizer ([`PreTrainedTokenizer`] or [`PreTrainedTokenizerFast`]):
The tokenizer used for encoding the data.
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `True`):
Select a strategy to pad the returned sequences (according to the model's padding side and padding index)
among:
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single sequence
if provided).
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
acceptable input length for the model if that argument is not provided.
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
lengths).
max_length (`int`, *optional*):
Maximum length of the returned list and optionally padding length (see above).
pad_to_multiple_of (`int`, *optional*):
If set will pad the sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability >=
7.5 (Volta).
"""
tokenizer: PreTrainedTokenizerBase
padding: Union[bool, str, PaddingStrategy] = True
max_length: Optional[int] = None
pad_to_multiple_of: Optional[int] = None
def __call__(self, features):
label_name = "label" if "label" in features[0].keys() else "labels"
labels = [feature.pop(label_name) for feature in features]
batch_size = len(features)
num_choices = len(features[0]["input_ids"])
flattened_features = [
[{k: v[i] for k, v in feature.items()} for i in range(num_choices)] for feature in features
]
flattened_features = list(chain(*flattened_features))
batch = self.tokenizer.pad(
flattened_features,
padding=self.padding,
max_length=self.max_length,
pad_to_multiple_of=self.pad_to_multiple_of,
return_tensors="np",
)
# Un-flatten
batch = {k: tf.reshape(v, (batch_size, num_choices, -1)) for k, v in batch.items()}
# Add back labels
batch["labels"] = tf.convert_to_tensor(labels, dtype=tf.int64)
return batch
# endregion
# region Arguments
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Where do you want to store the pretrained models downloaded from huggingface.co"},
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_seq_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization. If passed, sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
pad_to_max_length: bool = field(
default=False,
metadata={
"help": (
"Whether to pad all samples to the maximum sentence length. "
"If False, will pad the samples dynamically when batching to the maximum length in the batch. More "
"efficient on GPU but very bad for TPU."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
def __post_init__(self):
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
# endregion
def main():
# region Argument parsing
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TFTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_swag", model_args, data_args, framework="tensorflow")
output_dir = Path(training_args.output_dir)
output_dir.mkdir(parents=True, exist_ok=True)
# endregion
# region Logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
handlers=[logging.StreamHandler(sys.stdout)],
)
log_level = training_args.get_process_log_level()
logger.setLevel(log_level)
datasets.utils.logging.set_verbosity(log_level)
transformers.utils.logging.set_verbosity(log_level)
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
# endregion
# region Checkpoints
checkpoint = None
if len(os.listdir(training_args.output_dir)) > 0 and not training_args.overwrite_output_dir:
if (output_dir / CONFIG_NAME).is_file() and (output_dir / TF2_WEIGHTS_NAME).is_file():
checkpoint = output_dir
logger.info(
f"Checkpoint detected, resuming training from checkpoint in {training_args.output_dir}. To avoid this"
" behavior, change the `--output_dir` or add `--overwrite_output_dir` to train from scratch."
)
else:
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to continue regardless."
)
# endregion
# Set seed before initializing model.
set_seed(training_args.seed)
# region Load datasets
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
# In distributed training, the load_dataset function guarantee that only one local process can concurrently
# download the dataset.
if data_args.train_file is not None or data_args.validation_file is not None:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
raw_datasets = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
# Downloading and loading the swag dataset from the hub.
raw_datasets = load_dataset(
"swag",
"regular",
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# When using your own dataset or a different dataset from swag, you will probably need to change this.
ending_names = [f"ending{i}" for i in range(4)]
context_name = "sent1"
question_header_name = "sent2"
# endregion
# region Load model config and tokenizer
if checkpoint is not None:
config_path = training_args.output_dir
elif model_args.config_name:
config_path = model_args.config_name
else:
config_path = model_args.model_name_or_path
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
config = AutoConfig.from_pretrained(
config_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
# endregion
# region Dataset preprocessing
if data_args.max_seq_length is None:
max_seq_length = tokenizer.model_max_length
if max_seq_length > 1024:
logger.warning(
f"The tokenizer picked seems to have a very large `model_max_length` ({tokenizer.model_max_length}). "
"Picking 1024 instead. You can change that default value by passing --max_seq_length xxx."
)
max_seq_length = 1024
else:
if data_args.max_seq_length > tokenizer.model_max_length:
logger.warning(
f"The max_seq_length passed ({data_args.max_seq_length}) is larger than the maximum length for the "
f"model ({tokenizer.model_max_length}). Using max_seq_length={tokenizer.model_max_length}."
)
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
def preprocess_function(examples):
first_sentences = [[context] * 4 for context in examples[context_name]]
question_headers = examples[question_header_name]
second_sentences = [
[f"{header} {examples[end][i]}" for end in ending_names] for i, header in enumerate(question_headers)
]
# Flatten out
first_sentences = list(chain(*first_sentences))
second_sentences = list(chain(*second_sentences))
# Tokenize
tokenized_examples = tokenizer(first_sentences, second_sentences, truncation=True, max_length=max_seq_length)
# Un-flatten
data = {k: [v[i : i + 4] for i in range(0, len(v), 4)] for k, v in tokenized_examples.items()}
return data
if training_args.do_train:
if "train" not in raw_datasets:
raise ValueError("--do_train requires a train dataset")
train_dataset = raw_datasets["train"]
if data_args.max_train_samples is not None:
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
train_dataset = train_dataset.map(
preprocess_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
if training_args.do_eval:
if "validation" not in raw_datasets:
raise ValueError("--do_eval requires a validation dataset")
eval_dataset = raw_datasets["validation"]
if data_args.max_eval_samples is not None:
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
eval_dataset = eval_dataset.map(
preprocess_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.pad_to_max_length:
data_collator = DefaultDataCollator(return_tensors="np")
else:
# custom class defined above, as HF has no data collator for multiple choice
data_collator = DataCollatorForMultipleChoice(tokenizer)
# endregion
with training_args.strategy.scope():
# region Build model
if checkpoint is None:
model_path = model_args.model_name_or_path
else:
model_path = checkpoint
model = TFAutoModelForMultipleChoice.from_pretrained(
model_path,
config=config,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
num_replicas = training_args.strategy.num_replicas_in_sync
total_train_batch_size = training_args.per_device_train_batch_size * num_replicas
total_eval_batch_size = training_args.per_device_eval_batch_size * num_replicas
if training_args.do_train:
num_train_steps = (len(train_dataset) // total_train_batch_size) * int(training_args.num_train_epochs)
if training_args.warmup_steps > 0:
num_warmup_steps = training_args.warmup_steps
elif training_args.warmup_ratio > 0:
num_warmup_steps = int(num_train_steps * training_args.warmup_ratio)
else:
num_warmup_steps = 0
optimizer, lr_schedule = create_optimizer(
init_lr=training_args.learning_rate,
num_train_steps=num_train_steps,
num_warmup_steps=num_warmup_steps,
adam_beta1=training_args.adam_beta1,
adam_beta2=training_args.adam_beta2,
adam_epsilon=training_args.adam_epsilon,
weight_decay_rate=training_args.weight_decay,
adam_global_clipnorm=training_args.max_grad_norm,
)
else:
optimizer = "sgd" # Just write anything because we won't be using it
# Transformers models compute the right loss for their task by default when labels are passed, and will
# use this for training unless you specify your own loss function in compile().
model.compile(optimizer=optimizer, metrics=["accuracy"], jit_compile=training_args.xla)
# endregion
# region Preparing push_to_hub and model card
push_to_hub_model_id = training_args.push_to_hub_model_id
model_name = model_args.model_name_or_path.split("/")[-1]
if not push_to_hub_model_id:
push_to_hub_model_id = f"{model_name}-finetuned-multiplechoice"
model_card_kwargs = {"finetuned_from": model_args.model_name_or_path, "tasks": "multiple-choice"}
if training_args.push_to_hub:
callbacks = [
PushToHubCallback(
output_dir=training_args.output_dir,
hub_model_id=push_to_hub_model_id,
hub_token=training_args.push_to_hub_token,
tokenizer=tokenizer,
**model_card_kwargs,
)
]
else:
callbacks = []
# endregion
# region Training
eval_metrics = None
if training_args.do_train:
dataset_options = tf.data.Options()
dataset_options.experimental_distribute.auto_shard_policy = tf.data.experimental.AutoShardPolicy.OFF
# model.prepare_tf_dataset() wraps a Hugging Face dataset in a tf.data.Dataset which is ready to use in
# training. This is the recommended way to use a Hugging Face dataset when training with Keras. You can also
# use the lower-level dataset.to_tf_dataset() method, but you will have to specify things like column names
# yourself if you use this method, whereas they are automatically inferred from the model input names when
# using model.prepare_tf_dataset()
# For more info see the docs:
# https://huggingface.co/docs/transformers/main/en/main_classes/model#transformers.TFPreTrainedModel.prepare_tf_dataset
# https://huggingface.co/docs/datasets/main/en/package_reference/main_classes#datasets.Dataset.to_tf_dataset
tf_train_dataset = model.prepare_tf_dataset(
train_dataset,
shuffle=True,
batch_size=total_train_batch_size,
collate_fn=data_collator,
).with_options(dataset_options)
if training_args.do_eval:
validation_data = model.prepare_tf_dataset(
eval_dataset,
shuffle=False,
batch_size=total_eval_batch_size,
collate_fn=data_collator,
drop_remainder=True,
).with_options(dataset_options)
else:
validation_data = None
history = model.fit(
tf_train_dataset,
validation_data=validation_data,
epochs=int(training_args.num_train_epochs),
callbacks=callbacks,
)
eval_metrics = {key: val[-1] for key, val in history.history.items()}
# endregion
# region Evaluation
if training_args.do_eval and not training_args.do_train:
dataset_options = tf.data.Options()
dataset_options.experimental_distribute.auto_shard_policy = tf.data.experimental.AutoShardPolicy.OFF
# Do a standalone evaluation pass
tf_eval_dataset = model.prepare_tf_dataset(
eval_dataset,
shuffle=False,
batch_size=total_eval_batch_size,
collate_fn=data_collator,
drop_remainder=True,
).with_options(dataset_options)
eval_results = model.evaluate(tf_eval_dataset)
eval_metrics = {"val_loss": eval_results[0], "val_accuracy": eval_results[1]}
# endregion
if eval_metrics is not None and training_args.output_dir is not None:
output_eval_file = os.path.join(training_args.output_dir, "all_results.json")
with open(output_eval_file, "w") as writer:
writer.write(json.dumps(eval_metrics))
# region Push to hub
if training_args.output_dir is not None and not training_args.push_to_hub:
# If we're not pushing to hub, at least save a local copy when we're done
model.save_pretrained(training_args.output_dir)
# endregion
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/multiple-choice/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Multiple-choice training (e.g. SWAG)
This folder contains the `run_swag.py` script, showing an examples of *multiple-choice answering* with the
🤗 Transformers library. For straightforward use-cases you may be able to use these scripts without modification,
although we have also included comments in the code to indicate areas that you may need to adapt to your own projects.
### Multi-GPU and TPU usage
By default, the script uses a `MirroredStrategy` and will use multiple GPUs effectively if they are available. TPUs
can also be used by passing the name of the TPU resource with the `--tpu` argument.
### Memory usage and data loading
One thing to note is that all data is loaded into memory in this script. Most multiple-choice datasets are small
enough that this is not an issue, but if you have a very large dataset you will need to modify the script to handle
data streaming. This is particularly challenging for TPUs, given the stricter requirements and the sheer volume of data
required to keep them fed. A full explanation of all the possible pitfalls is a bit beyond this example script and
README, but for more information you can see the 'Input Datasets' section of
[this document](https://www.tensorflow.org/guide/tpu).
### Example command
```bash
python run_swag.py \
--model_name_or_path distilbert/distilbert-base-cased \
--output_dir output \
--do_eval \
--do_train
```
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/language-modeling-tpu/prepare_tfrecord_shards.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Script for preparing TFRecord shards for pre-tokenized examples."""
import argparse
import logging
import os
import datasets
import tensorflow as tf
from transformers import AutoTokenizer
logger = logging.getLogger(__name__)
def parse_args():
parser = argparse.ArgumentParser(
description="Prepare TFRecord shards from pre-tokenized samples of the wikitext dataset."
)
parser.add_argument(
"--dataset_name",
type=str,
default="wikitext",
help="Name of the training. Explore datasets at: hf.co/datasets.",
)
parser.add_argument(
"--dataset_config", type=str, default="wikitext-103-raw-v1", help="Configuration name of the dataset."
)
parser.add_argument(
"--tokenizer_name_or_path",
type=str,
default="sayakpaul/unigram-tokenizer-wikitext",
help="Tokenizer identifier. Can be a local filepath or a Hub identifier.",
)
parser.add_argument(
"--shard_size",
type=int,
default=1000,
help="Number of entries to go in a single shard.",
)
parser.add_argument("--split", type=str, default="train", choices=["train", "test", "validation"])
parser.add_argument(
"--limit",
default=None,
type=int,
help="Limit the number of shards (used for debugging).",
)
parser.add_argument(
"--max_length",
type=int,
default=512,
help="Maximum sequence length. For training on TPUs, it helps to have a maximum"
" sequence length that is a multiple of 8.",
)
parser.add_argument(
"--output_dir",
default="tf-tpu",
type=str,
help="Output directory where the TFRecord shards will be saved. If the"
" path is appended with `gs://` ('gs://tf-tpu', for example) then the TFRecord"
" shards will be directly saved to a Google Cloud Storage bucket.",
)
args = parser.parse_args()
return args
def tokenize_function(tokenizer):
def fn(examples):
return tokenizer(examples["text"])
return fn
def get_serialized_examples(tokenized_data):
records = []
for i in range(len(tokenized_data["input_ids"])):
features = {
"input_ids": tf.train.Feature(int64_list=tf.train.Int64List(value=tokenized_data["input_ids"][i])),
"attention_mask": tf.train.Feature(
int64_list=tf.train.Int64List(value=tokenized_data["attention_mask"][i])
),
}
features = tf.train.Features(feature=features)
example = tf.train.Example(features=features)
record_bytes = example.SerializeToString()
records.append(record_bytes)
return records
def main(args):
dataset = datasets.load_dataset(args.dataset_name, args.dataset_config, split=args.split)
if args.limit is not None:
max_samples = min(len(dataset), args.limit)
dataset = dataset.select(range(max_samples))
print(f"Limiting the dataset to {args.limit} entries.")
tokenizer = AutoTokenizer.from_pretrained(args.tokenizer_name_or_path)
# Handle output directory creation.
# For serializing into a Google Cloud Storage Bucket, one needs to first
# create a bucket.
if "gs" not in args.output_dir:
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
split_dir = os.path.join(args.output_dir, args.split)
if not os.path.exists(split_dir):
os.makedirs(split_dir)
else:
split_dir = os.path.join(args.output_dir, args.split)
# Tokenize the whole dataset at once.
tokenize_fn = tokenize_function(tokenizer)
dataset_tokenized = dataset.map(tokenize_fn, batched=True, num_proc=4, remove_columns=["text"])
# We need to concatenate all our texts together, and then split the result
# into chunks of a fixed size, which we will call block_size. To do this, we
# will use the map method again, with the option batched=True. When we use batched=True,
# the function we pass to map() will be passed multiple inputs at once, allowing us
# to group them into more or fewer examples than we had in the input.
# This allows us to create our new fixed-length samples. The advantage of this
# method is that we don't lose a whole lot of content from the dataset compared to the
# case where we simply tokenize with a pre-defined max_length.
def group_texts(examples):
# Concatenate all texts.
concatenated_examples = {k: sum(examples[k], []) for k in examples.keys()}
total_length = len(concatenated_examples[list(examples.keys())[0]])
# We drop the small remainder, though you could add padding instead if the model supports it
# In this, as in all things, we advise you to follow your heart 🫀
total_length = (total_length // args.max_length) * args.max_length
# Split by chunks of max_len.
result = {
k: [t[i : i + args.max_length] for i in range(0, total_length, args.max_length)]
for k, t in concatenated_examples.items()
}
return result
grouped_dataset = dataset_tokenized.map(group_texts, batched=True, batch_size=1000, num_proc=4)
shard_count = 0
total_records = 0
for shard in range(0, len(grouped_dataset), args.shard_size):
dataset_snapshot = grouped_dataset[shard : shard + args.shard_size]
records_containing = len(dataset_snapshot["input_ids"])
filename = os.path.join(split_dir, f"dataset-{shard_count}-{records_containing}.tfrecord")
serialized_examples = get_serialized_examples(dataset_snapshot)
with tf.io.TFRecordWriter(filename) as out_file:
for i in range(len(serialized_examples)):
example = serialized_examples[i]
out_file.write(example)
print("Wrote file {} containing {} records".format(filename, records_containing))
shard_count += 1
total_records += records_containing
with open(f"split-{args.split}-records-count.txt", "w") as f:
print(f"Total {args.split} records: {total_records}", file=f)
if __name__ == "__main__":
args = parse_args()
main(args)
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/language-modeling-tpu/requirements.txt | transformers==4.26.1
datasets==2.9.0
tokenizers==0.13.2
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/language-modeling-tpu/run_mlm.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Script for training a masked language model on TPU."""
import argparse
import logging
import os
import re
import tensorflow as tf
from packaging.version import parse
from transformers import (
AutoConfig,
AutoTokenizer,
DataCollatorForLanguageModeling,
PushToHubCallback,
TFAutoModelForMaskedLM,
create_optimizer,
)
try:
import tf_keras as keras
except (ModuleNotFoundError, ImportError):
import keras
if parse(keras.__version__).major > 2:
raise ValueError(
"Your currently installed version of Keras is Keras 3, but this is not yet supported in "
"Transformers. Please install the backwards-compatible tf-keras package with "
"`pip install tf-keras`."
)
logger = logging.getLogger(__name__)
AUTO = tf.data.AUTOTUNE
def parse_args():
parser = argparse.ArgumentParser(description="Train a masked language model on TPU.")
parser.add_argument(
"--pretrained_model_config",
type=str,
default="FacebookAI/roberta-base",
help="The model config to use. Note that we don't copy the model's weights, only the config!",
)
parser.add_argument(
"--tokenizer",
type=str,
default="unigram-tokenizer-wikitext",
help="The name of the tokenizer to load. We use the pretrained tokenizer to initialize the model's vocab size.",
)
parser.add_argument(
"--per_replica_batch_size",
type=int,
default=8,
help="Batch size per TPU core.",
)
parser.add_argument(
"--no_tpu",
action="store_true",
help="If set, run on CPU and don't try to initialize a TPU. Useful for debugging on non-TPU instances.",
)
parser.add_argument(
"--tpu_name",
type=str,
help="Name of TPU resource to initialize. Should be blank on Colab, and 'local' on TPU VMs.",
default="local",
)
parser.add_argument(
"--tpu_zone",
type=str,
help="Google cloud zone that TPU resource is located in. Only used for non-Colab TPU nodes.",
)
parser.add_argument(
"--gcp_project", type=str, help="Google cloud project name. Only used for non-Colab TPU nodes."
)
parser.add_argument(
"--bfloat16",
action="store_true",
help="Use mixed-precision bfloat16 for training. This is the recommended lower-precision format for TPU.",
)
parser.add_argument(
"--train_dataset",
type=str,
help="Path to training dataset to load. If the path begins with `gs://`"
" then the dataset will be loaded from a Google Cloud Storage bucket.",
)
parser.add_argument(
"--shuffle_buffer_size",
type=int,
default=2**18, # Default corresponds to a 1GB buffer for seq_len 512
help="Size of the shuffle buffer (in samples)",
)
parser.add_argument(
"--eval_dataset",
type=str,
help="Path to evaluation dataset to load. If the path begins with `gs://`"
" then the dataset will be loaded from a Google Cloud Storage bucket.",
)
parser.add_argument(
"--num_epochs",
type=int,
default=1,
help="Number of epochs to train for.",
)
parser.add_argument(
"--learning_rate",
type=float,
default=1e-4,
help="Learning rate to use for training.",
)
parser.add_argument(
"--weight_decay_rate",
type=float,
default=1e-3,
help="Weight decay rate to use for training.",
)
parser.add_argument(
"--max_length",
type=int,
default=512,
help="Maximum length of tokenized sequences. Should match the setting used in prepare_tfrecord_shards.py",
)
parser.add_argument(
"--mlm_probability",
type=float,
default=0.15,
help="Fraction of tokens to mask during training.",
)
parser.add_argument("--output_dir", type=str, required=True, help="Path to save model checkpoints to.")
parser.add_argument("--hub_model_id", type=str, help="Model ID to upload to on the Hugging Face Hub.")
args = parser.parse_args()
return args
def initialize_tpu(args):
try:
if args.tpu_name:
tpu = tf.distribute.cluster_resolver.TPUClusterResolver(
args.tpu_name, zone=args.tpu_zone, project=args.gcp_project
)
else:
tpu = tf.distribute.cluster_resolver.TPUClusterResolver()
except ValueError:
raise RuntimeError(
"Couldn't connect to TPU! Most likely you need to specify --tpu_name, --tpu_zone, or "
"--gcp_project. When running on a TPU VM, use --tpu_name local."
)
tf.config.experimental_connect_to_cluster(tpu)
tf.tpu.experimental.initialize_tpu_system(tpu)
return tpu
def count_samples(file_list):
num_samples = 0
for file in file_list:
filename = file.split("/")[-1]
sample_count = re.search(r"-\d+-(\d+)\.tfrecord", filename).group(1)
sample_count = int(sample_count)
num_samples += sample_count
return num_samples
def prepare_dataset(records, decode_fn, mask_fn, batch_size, shuffle, shuffle_buffer_size=None):
num_samples = count_samples(records)
dataset = tf.data.Dataset.from_tensor_slices(records)
if shuffle:
dataset = dataset.shuffle(len(dataset))
dataset = tf.data.TFRecordDataset(dataset, num_parallel_reads=AUTO)
# TF can't infer the total sample count because it doesn't read all the records yet, so we assert it here
dataset = dataset.apply(tf.data.experimental.assert_cardinality(num_samples))
dataset = dataset.map(decode_fn, num_parallel_calls=AUTO)
if shuffle:
assert shuffle_buffer_size is not None
dataset = dataset.shuffle(args.shuffle_buffer_size)
dataset = dataset.batch(batch_size, drop_remainder=True)
dataset = dataset.map(mask_fn, num_parallel_calls=AUTO)
dataset = dataset.prefetch(AUTO)
return dataset
def main(args):
if not args.no_tpu:
tpu = initialize_tpu(args)
strategy = tf.distribute.TPUStrategy(tpu)
else:
strategy = tf.distribute.OneDeviceStrategy(device="/gpu:0")
if args.bfloat16:
keras.mixed_precision.set_global_policy("mixed_bfloat16")
tokenizer = AutoTokenizer.from_pretrained(args.tokenizer)
config = AutoConfig.from_pretrained(args.pretrained_model_config)
config.vocab_size = tokenizer.vocab_size
training_records = tf.io.gfile.glob(os.path.join(args.train_dataset, "*.tfrecord"))
if not training_records:
raise ValueError(f"No .tfrecord files found in {args.train_dataset}.")
eval_records = tf.io.gfile.glob(os.path.join(args.eval_dataset, "*.tfrecord"))
if not eval_records:
raise ValueError(f"No .tfrecord files found in {args.eval_dataset}.")
num_train_samples = count_samples(training_records)
steps_per_epoch = num_train_samples // (args.per_replica_batch_size * strategy.num_replicas_in_sync)
total_train_steps = steps_per_epoch * args.num_epochs
with strategy.scope():
model = TFAutoModelForMaskedLM.from_config(config)
model(model.dummy_inputs) # Pass some dummy inputs through the model to ensure all the weights are built
optimizer, schedule = create_optimizer(
num_train_steps=total_train_steps,
num_warmup_steps=total_train_steps // 20,
init_lr=args.learning_rate,
weight_decay_rate=args.weight_decay_rate,
)
# Transformers models compute the right loss for their task by default when labels are passed, and will
# use this for training unless you specify your own loss function in compile().
model.compile(optimizer=optimizer, metrics=["accuracy"])
def decode_fn(example):
features = {
"input_ids": tf.io.FixedLenFeature(dtype=tf.int64, shape=(args.max_length,)),
"attention_mask": tf.io.FixedLenFeature(dtype=tf.int64, shape=(args.max_length,)),
}
return tf.io.parse_single_example(example, features)
# Many of the data collators in Transformers are TF-compilable when return_tensors == "tf", so we can
# use their methods in our data pipeline.
data_collator = DataCollatorForLanguageModeling(
tokenizer=tokenizer, mlm_probability=args.mlm_probability, mlm=True, return_tensors="tf"
)
def mask_with_collator(batch):
# TF really needs an isin() function
special_tokens_mask = (
~tf.cast(batch["attention_mask"], tf.bool)
| (batch["input_ids"] == tokenizer.cls_token_id)
| (batch["input_ids"] == tokenizer.sep_token_id)
)
batch["input_ids"], batch["labels"] = data_collator.tf_mask_tokens(
batch["input_ids"],
vocab_size=len(tokenizer),
mask_token_id=tokenizer.mask_token_id,
special_tokens_mask=special_tokens_mask,
)
return batch
batch_size = args.per_replica_batch_size * strategy.num_replicas_in_sync
train_dataset = prepare_dataset(
training_records,
decode_fn=decode_fn,
mask_fn=mask_with_collator,
batch_size=batch_size,
shuffle=True,
shuffle_buffer_size=args.shuffle_buffer_size,
)
eval_dataset = prepare_dataset(
eval_records,
decode_fn=decode_fn,
mask_fn=mask_with_collator,
batch_size=batch_size,
shuffle=False,
)
callbacks = []
if args.hub_model_id:
callbacks.append(
PushToHubCallback(output_dir=args.output_dir, hub_model_id=args.hub_model_id, tokenizer=tokenizer)
)
model.fit(
train_dataset,
validation_data=eval_dataset,
epochs=args.num_epochs,
callbacks=callbacks,
)
model.save_pretrained(args.output_dir)
if __name__ == "__main__":
args = parse_args()
main(args)
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/language-modeling-tpu/train_unigram.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Script for training a Unigram tokenizer."""
import argparse
import logging
import datasets
from tokenizers import Tokenizer, decoders, normalizers, pre_tokenizers, processors
from tokenizers.models import Unigram
from tokenizers.trainers import UnigramTrainer
from transformers import AlbertTokenizerFast
logger = logging.getLogger(__name__)
def parse_args():
parser = argparse.ArgumentParser(description="Train a unigram tokenizer on the wikitext dataset.")
parser.add_argument(
"--dataset_name",
type=str,
default="wikitext",
help="Name of the training. Explore datasets at: hf.co/datasets.",
)
parser.add_argument(
"--dataset_config", type=str, default="wikitext-103-raw-v1", help="Configuration name of the dataset."
)
parser.add_argument(
"--batch_size",
type=int,
default=1000,
help="Batch size during training.",
)
parser.add_argument(
"--vocab_size",
type=int,
default=10048,
help="Size of the desired vocabulary.",
)
parser.add_argument(
"--limit",
default=None,
type=int,
help="Limit the number of shards (used for debugging).",
)
parser.add_argument(
"--export_to_hub",
action="store_true",
)
args = parser.parse_args()
return args
def main(args):
dataset = datasets.load_dataset(args.dataset_name, args.dataset_config, split="train")
if args.limit is not None:
max_train_samples = min(len(dataset), args.limit)
dataset = dataset.select(range(max_train_samples))
logger.info(f"Limiting the dataset to {args.limit} entries.")
def batch_iterator():
for i in range(0, len(dataset), args.batch_size):
yield dataset[i : i + args.batch_size]["text"]
# Prepare the tokenizer.
tokenizer = Tokenizer(Unigram())
tokenizer.normalizer = normalizers.Sequence([normalizers.Replace("``", '"'), normalizers.Replace("''", '"')])
tokenizer.pre_tokenizer = pre_tokenizers.Metaspace()
# Prepare the trainer.
trainer = UnigramTrainer(
unk_token="<unk>",
special_tokens=["[CLS]", "[SEP]", "<unk>", "<pad>", "[MASK]"],
vocab_size=args.vocab_size,
)
logger.info("Training the tokenizer.")
tokenizer.train_from_iterator(batch_iterator(), trainer=trainer)
logger.info("Tokenizer training complete!")
cls_token_id = tokenizer.token_to_id("[CLS]")
sep_token_id = tokenizer.token_to_id("[SEP]")
tokenizer.post_processor = processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", cls_token_id),
("[SEP]", sep_token_id),
],
)
tokenizer.decoder = decoders.Metaspace()
if args.export_to_hub:
logger.info("Exporting the trained tokenizer to Hub.")
new_tokenizer = AlbertTokenizerFast(tokenizer_object=tokenizer)
new_tokenizer.push_to_hub("unigram-tokenizer-dataset")
if __name__ == "__main__":
args = parse_args()
main(args)
| 0 |
mavonic_private_repos/transformers/examples/tensorflow | mavonic_private_repos/transformers/examples/tensorflow/language-modeling-tpu/README.md | # Training a masked language model end-to-end from scratch on TPUs
In this example, we're going to demonstrate how to train a TensorFlow model from 🤗 Transformers from scratch. If you're interested in some background theory on training Hugging Face models with TensorFlow on TPU, please check out our
[tutorial doc](https://huggingface.co/docs/transformers/main/perf_train_tpu_tf) on this topic!
If you're interested in smaller-scale TPU training from a pre-trained checkpoint, you can also check out the [TPU fine-tuning example](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/tpu_training-tf.ipynb).
This example will demonstrate pre-training language models at the 100M-1B parameter scale, similar to BERT or GPT-2. More concretely, we will show how to train a [RoBERTa](https://huggingface.co/docs/transformers/model_doc/roberta) (base model) from scratch on the [WikiText dataset (v1)](https://huggingface.co/datasets/wikitext).
We've tried to ensure that all the practices we show you here are scalable, though - with relatively few changes, the code could be scaled up to much larger models.
Google's gargantuan [PaLM model](https://arxiv.org/abs/2204.02311), with
over 500B parameters, is a good example of how far you can go with pure TPU training, though gathering the dataset and the budget to train at that scale is not an easy task!
### Table of contents
- [Setting up a TPU-VM](#setting-up-a-tpu-vm)
- [Training a tokenizer](#training-a-tokenizer)
- [Preparing the dataset](#preparing-the-dataset)
- [Training the model](#training-the-model)
- [Inference](#inference)
## Setting up a TPU-VM
Since this example focuses on using TPUs, the first step is to set up access to TPU hardware. For this example, we chose to use a TPU v3-8 VM. Follow [this guide](https://cloud.google.com/tpu/docs/run-calculation-tensorflow) to quickly create a TPU VM with TensorFlow pre-installed.
> 💡 **Note**: You don't need a TPU-enabled hardware for tokenizer training and TFRecord shard preparation.
## Training a tokenizer
To train a language model from scratch, the first step is to tokenize text. In most Hugging Face examples, we begin from a pre-trained model and use its tokenizer. However, in this example, we're going to train a tokenizer from scratch as well. The script for this is `train_unigram.py`. An example command is:
```bash
python train_unigram.py --batch_size 1000 --vocab_size 25000 --export_to_hub
```
The script will automatically load the `train` split of the WikiText dataset and train a [Unigram tokenizer](https://huggingface.co/course/chapter6/7?fw=pt) on it.
> 💡 **Note**: In order for `export_to_hub` to work, you must authenticate yourself with the `huggingface-cli`. Run `huggingface-cli login` and follow the on-screen instructions.
## Preparing the dataset
The next step is to prepare the dataset. This consists of loading a text dataset from the Hugging Face Hub, tokenizing it and grouping it into chunks of a fixed length ready for training. The script for this is `prepare_tfrecord_shards.py`.
The reason we create TFRecord output files from this step is that these files work well with [`tf.data` pipelines](https://www.tensorflow.org/guide/data_performance). This makes them very suitable for scalable TPU training - the dataset can easily be sharded and read in parallel just by tweaking a few parameters in the pipeline. An example command is:
```bash
python prepare_tfrecord_shards.py \
--tokenizer_name_or_path tf-tpu/unigram-tokenizer-wikitext \
--shard_size 5000 \
--split test
--max_length 128 \
--output_dir gs://tf-tpu-training-resources
```
**Notes**:
* While running the above script, you need to specify the `split` accordingly. The example command above will only filter the `test` split of the dataset.
* If you append `gs://` in your `output_dir` the TFRecord shards will be directly serialized to a Google Cloud Storage (GCS) bucket. Ensure that you have already [created the GCS bucket](https://cloud.google.com/storage/docs).
* If you're using a TPU node, you must stream data from a GCS bucket. Otherwise, if you're using a TPU VM,you can store the data locally. You may need to [attach](https://cloud.google.com/tpu/docs/setup-persistent-disk) a persistent storage to the VM.
* Additional CLI arguments are also supported. We encourage you to run `python prepare_tfrecord_shards.py -h` to know more about them.
## Training the model
Once that's done, the model is ready for training. By default, training takes place on TPU, but you can use the `--no_tpu` flag to train on CPU for testing purposes. An example command is:
```bash
python3 run_mlm.py \
--train_dataset gs://tf-tpu-training-resources/train/ \
--eval_dataset gs://tf-tpu-training-resources/validation/ \
--tokenizer tf-tpu/unigram-tokenizer-wikitext \
--output_dir trained_model
```
If you had specified a `hub_model_id` while launching training, then your model will be pushed to a model repository on the Hugging Face Hub. You can find such an example repository here:
[tf-tpu/roberta-base-epochs-500-no-wd](https://huggingface.co/tf-tpu/roberta-base-epochs-500-no-wd).
## Inference
Once the model is trained, you can use 🤗 Pipelines to perform inference:
```python
from transformers import pipeline
model_id = "tf-tpu/roberta-base-epochs-500-no-wd"
unmasker = pipeline("fill-mask", model=model_id, framework="tf")
unmasker("Goal of my life is to [MASK].")
[{'score': 0.1003185287117958,
'token': 52,
'token_str': 'be',
'sequence': 'Goal of my life is to be.'},
{'score': 0.032648514956235886,
'token': 5,
'token_str': '',
'sequence': 'Goal of my life is to .'},
{'score': 0.02152673341333866,
'token': 138,
'token_str': 'work',
'sequence': 'Goal of my life is to work.'},
{'score': 0.019547373056411743,
'token': 984,
'token_str': 'act',
'sequence': 'Goal of my life is to act.'},
{'score': 0.01939118467271328,
'token': 73,
'token_str': 'have',
'sequence': 'Goal of my life is to have.'}]
```
You can also try out inference using the [Inference Widget](https://huggingface.co/tf-tpu/roberta-base-epochs-500-no-wd?text=Goal+of+my+life+is+to+%5BMASK%5D.) from the model page. | 0 |
mavonic_private_repos/transformers/examples | mavonic_private_repos/transformers/examples/flax/test_flax_examples.py | # coding=utf-8
# Copyright 2021 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import json
import logging
import os
import sys
from unittest.mock import patch
from transformers.testing_utils import TestCasePlus, get_gpu_count, slow
SRC_DIRS = [
os.path.join(os.path.dirname(__file__), dirname)
for dirname in [
"text-classification",
"language-modeling",
"summarization",
"token-classification",
"question-answering",
"speech-recognition",
]
]
sys.path.extend(SRC_DIRS)
if SRC_DIRS is not None:
import run_clm_flax
import run_flax_glue
import run_flax_ner
import run_flax_speech_recognition_seq2seq
import run_mlm_flax
import run_qa
import run_summarization_flax
import run_t5_mlm_flax
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger()
def get_setup_file():
parser = argparse.ArgumentParser()
parser.add_argument("-f")
args = parser.parse_args()
return args.f
def get_results(output_dir, split="eval"):
path = os.path.join(output_dir, f"{split}_results.json")
if os.path.exists(path):
with open(path, "r") as f:
return json.load(f)
raise ValueError(f"can't find {path}")
stream_handler = logging.StreamHandler(sys.stdout)
logger.addHandler(stream_handler)
class ExamplesTests(TestCasePlus):
def test_run_glue(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_glue.py
--model_name_or_path distilbert/distilbert-base-uncased
--output_dir {tmp_dir}
--train_file ./tests/fixtures/tests_samples/MRPC/train.csv
--validation_file ./tests/fixtures/tests_samples/MRPC/dev.csv
--per_device_train_batch_size=2
--per_device_eval_batch_size=1
--learning_rate=1e-4
--eval_steps=2
--warmup_steps=2
--seed=42
--max_seq_length=128
""".split()
with patch.object(sys, "argv", testargs):
run_flax_glue.main()
result = get_results(tmp_dir)
self.assertGreaterEqual(result["eval_accuracy"], 0.75)
@slow
def test_run_clm(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_clm_flax.py
--model_name_or_path distilbert/distilgpt2
--train_file ./tests/fixtures/sample_text.txt
--validation_file ./tests/fixtures/sample_text.txt
--do_train
--do_eval
--block_size 128
--per_device_train_batch_size 4
--per_device_eval_batch_size 4
--num_train_epochs 2
--logging_steps 2 --eval_steps 2
--output_dir {tmp_dir}
--overwrite_output_dir
""".split()
with patch.object(sys, "argv", testargs):
run_clm_flax.main()
result = get_results(tmp_dir)
self.assertLess(result["eval_perplexity"], 100)
@slow
def test_run_summarization(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_summarization.py
--model_name_or_path google-t5/t5-small
--train_file tests/fixtures/tests_samples/xsum/sample.json
--validation_file tests/fixtures/tests_samples/xsum/sample.json
--test_file tests/fixtures/tests_samples/xsum/sample.json
--output_dir {tmp_dir}
--overwrite_output_dir
--num_train_epochs=3
--warmup_steps=8
--do_train
--do_eval
--do_predict
--learning_rate=2e-4
--per_device_train_batch_size=2
--per_device_eval_batch_size=1
--predict_with_generate
""".split()
with patch.object(sys, "argv", testargs):
run_summarization_flax.main()
result = get_results(tmp_dir, split="test")
self.assertGreaterEqual(result["test_rouge1"], 10)
self.assertGreaterEqual(result["test_rouge2"], 2)
self.assertGreaterEqual(result["test_rougeL"], 7)
self.assertGreaterEqual(result["test_rougeLsum"], 7)
@slow
def test_run_mlm(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_mlm.py
--model_name_or_path distilbert/distilroberta-base
--train_file ./tests/fixtures/sample_text.txt
--validation_file ./tests/fixtures/sample_text.txt
--output_dir {tmp_dir}
--overwrite_output_dir
--max_seq_length 128
--per_device_train_batch_size 4
--per_device_eval_batch_size 4
--logging_steps 2 --eval_steps 2
--do_train
--do_eval
--num_train_epochs=1
""".split()
with patch.object(sys, "argv", testargs):
run_mlm_flax.main()
result = get_results(tmp_dir)
self.assertLess(result["eval_perplexity"], 42)
@slow
def test_run_t5_mlm(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_t5_mlm_flax.py
--model_name_or_path google-t5/t5-small
--train_file ./tests/fixtures/sample_text.txt
--validation_file ./tests/fixtures/sample_text.txt
--do_train
--do_eval
--max_seq_length 128
--per_device_train_batch_size 4
--per_device_eval_batch_size 4
--num_train_epochs 2
--logging_steps 2 --eval_steps 2
--output_dir {tmp_dir}
--overwrite_output_dir
""".split()
with patch.object(sys, "argv", testargs):
run_t5_mlm_flax.main()
result = get_results(tmp_dir)
self.assertGreaterEqual(result["eval_accuracy"], 0.42)
@slow
def test_run_ner(self):
# with so little data distributed training needs more epochs to get the score on par with 0/1 gpu
epochs = 7 if get_gpu_count() > 1 else 2
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_flax_ner.py
--model_name_or_path google-bert/bert-base-uncased
--train_file tests/fixtures/tests_samples/conll/sample.json
--validation_file tests/fixtures/tests_samples/conll/sample.json
--output_dir {tmp_dir}
--overwrite_output_dir
--do_train
--do_eval
--warmup_steps=2
--learning_rate=2e-4
--logging_steps 2 --eval_steps 2
--per_device_train_batch_size=2
--per_device_eval_batch_size=2
--num_train_epochs={epochs}
--seed 7
""".split()
with patch.object(sys, "argv", testargs):
run_flax_ner.main()
result = get_results(tmp_dir)
self.assertGreaterEqual(result["eval_accuracy"], 0.75)
self.assertGreaterEqual(result["eval_f1"], 0.3)
@slow
def test_run_qa(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_qa.py
--model_name_or_path google-bert/bert-base-uncased
--version_2_with_negative
--train_file tests/fixtures/tests_samples/SQUAD/sample.json
--validation_file tests/fixtures/tests_samples/SQUAD/sample.json
--output_dir {tmp_dir}
--overwrite_output_dir
--num_train_epochs=3
--warmup_steps=2
--do_train
--do_eval
--logging_steps 2 --eval_steps 2
--learning_rate=2e-4
--per_device_train_batch_size=2
--per_device_eval_batch_size=1
""".split()
with patch.object(sys, "argv", testargs):
run_qa.main()
result = get_results(tmp_dir)
self.assertGreaterEqual(result["eval_f1"], 30)
self.assertGreaterEqual(result["eval_exact"], 30)
@slow
def test_run_flax_speech_recognition_seq2seq(self):
tmp_dir = self.get_auto_remove_tmp_dir()
testargs = f"""
run_flax_speech_recognition_seq2seq.py
--model_name_or_path openai/whisper-tiny.en
--dataset_name hf-internal-testing/librispeech_asr_dummy
--dataset_config clean
--train_split_name validation
--eval_split_name validation
--output_dir {tmp_dir}
--overwrite_output_dir
--num_train_epochs=2
--max_train_samples 10
--max_eval_samples 10
--warmup_steps=8
--do_train
--do_eval
--learning_rate=2e-4
--per_device_train_batch_size=2
--per_device_eval_batch_size=1
--predict_with_generate
""".split()
with patch.object(sys, "argv", testargs):
run_flax_speech_recognition_seq2seq.main()
result = get_results(tmp_dir, split="eval")
self.assertLessEqual(result["eval_wer"], 0.05)
| 0 |
mavonic_private_repos/transformers/examples | mavonic_private_repos/transformers/examples/flax/_tests_requirements.txt | datasets >= 1.1.3
pytest<8.0.1
conllu
nltk
rouge-score
seqeval
tensorboard
evaluate >= 0.2.0
torch
accelerate | 0 |
mavonic_private_repos/transformers/examples | mavonic_private_repos/transformers/examples/flax/conftest.py | # Copyright 2021 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# tests directory-specific settings - this file is run automatically
# by pytest before any tests are run
import sys
import warnings
from os.path import abspath, dirname, join
# allow having multiple repository checkouts and not needing to remember to rerun
# `pip install -e '.[dev]'` when switching between checkouts and running tests.
git_repo_path = abspath(join(dirname(dirname(dirname(__file__))), "src"))
sys.path.insert(1, git_repo_path)
# silence FutureWarning warnings in tests since often we can't act on them until
# they become normal warnings - i.e. the tests still need to test the current functionality
warnings.simplefilter(action="ignore", category=FutureWarning)
def pytest_addoption(parser):
from transformers.testing_utils import pytest_addoption_shared
pytest_addoption_shared(parser)
def pytest_terminal_summary(terminalreporter):
from transformers.testing_utils import pytest_terminal_summary_main
make_reports = terminalreporter.config.getoption("--make-reports")
if make_reports:
pytest_terminal_summary_main(terminalreporter, id=make_reports)
| 0 |
mavonic_private_repos/transformers/examples | mavonic_private_repos/transformers/examples/flax/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# JAX/Flax Examples
This folder contains actively maintained examples of 🤗 Transformers using the JAX/Flax backend. Porting models and examples to JAX/Flax is an ongoing effort, and more will be added in the coming months. In particular, these examples are all designed to run fast on Cloud TPUs, and we include step-by-step guides to getting started with Cloud TPU.
*NOTE*: Currently, there is no "Trainer" abstraction for JAX/Flax -- all examples contain an explicit training loop.
The following table lists all of our examples on how to use 🤗 Transformers with the JAX/Flax backend:
- with information about the model and dataset used,
- whether or not they leverage the [🤗 Datasets](https://github.com/huggingface/datasets) library,
- links to **Colab notebooks** to walk through the scripts and run them easily.
| Task | Example model | Example dataset | 🤗 Datasets | Colab
|---|---|---|:---:|:---:|
| [**`causal-language-modeling`**](https://github.com/huggingface/transformers/tree/main/examples/flax/language-modeling) | GPT2 | OSCAR | ✅ | [](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/causal_language_modeling_flax.ipynb)
| [**`masked-language-modeling`**](https://github.com/huggingface/transformers/tree/main/examples/flax/language-modeling) | RoBERTa | OSCAR | ✅ | [](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/masked_language_modeling_flax.ipynb)
| [**`text-classification`**](https://github.com/huggingface/transformers/tree/main/examples/flax/text-classification) | BERT | GLUE | ✅ | [](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/text_classification_flax.ipynb)
## Intro: JAX and Flax
[JAX](https://github.com/google/jax) is a numerical computation library that exposes a NumPy-like API with tracing capabilities. With JAX's `jit`, you can
trace pure functions and compile them into efficient, fused accelerator code on both GPU and TPU. JAX
supports additional transformations such as `grad` (for arbitrary gradients), `pmap` (for parallelizing computation on multiple devices), `remat` (for gradient checkpointing), `vmap` (automatic
efficient vectorization), and `pjit` (for automatically sharded model parallelism). All JAX transformations compose arbitrarily with each other -- e.g., efficiently
computing per-example gradients is simply `vmap(grad(f))`.
[Flax](https://github.com/google/flax) builds on top of JAX with an ergonomic
module abstraction using Python dataclasses that leads to concise and explicit code. Flax's "lifted" JAX transformations (e.g. `vmap`, `remat`) allow you to nest JAX transformation and modules in any way you wish. Flax is the most widely used JAX library, with [129 dependent projects](https://github.com/google/flax/network/dependents?package_id=UGFja2FnZS01MjEyMjA2MA%3D%3D) as of May 2021. It is also the library underlying all of the official Cloud TPU JAX examples.
## Running on Cloud TPU
All of our JAX/Flax models are designed to run efficiently on Google
Cloud TPUs. Here is [a guide for running JAX on Google Cloud TPU](https://cloud.google.com/tpu/docs/jax-quickstart-tpu-vm).
Consider applying for the [Google TPU Research Cloud project](https://sites.research.google/trc/) for free TPU compute.
Each example README contains more details on the specific model and training
procedure.
## Running on single or multiple GPUs
All of our JAX/Flax examples also run efficiently on single and multiple GPUs. You can use the same instructions in the README to launch training on GPU.
Distributed training is supported out-of-the box and scripts will use all the GPUs that are detected.
You should follow this [guide for installing JAX on GPUs](https://github.com/google/jax/#pip-installation-gpu-cuda) since the installation depends on
your CUDA and CuDNN version.
## Supported models
Porting models from PyTorch to JAX/Flax is an ongoing effort.
Feel free to reach out if you are interested in contributing a model in JAX/Flax -- we'll
be adding a guide for porting models from PyTorch in the upcoming few weeks.
For a complete overview of models that are supported in JAX/Flax, please have a look at [this](https://huggingface.co/transformers/main/index.html#supported-frameworks) table.
Over 3000 pretrained checkpoints are supported in JAX/Flax as of May 2021.
Click [here](https://huggingface.co/models?filter=jax) to see the full list on the 🤗 hub.
## Upload the trained/fine-tuned model to the Hub
All the example scripts support automatic upload of your final model to the [Model Hub](https://huggingface.co/models) by adding a `--push_to_hub` argument. It will then create a repository with your username slash the name of the folder you are using as `output_dir`. For instance, `"sgugger/test-mrpc"` if your username is `sgugger` and you are working in the folder `~/tmp/test-mrpc`.
To specify a given repository name, use the `--hub_model_id` argument. You will need to specify the whole repository name (including your username), for instance `--hub_model_id sgugger/finetuned-bert-mrpc`. To upload to an organization you are a member of, just use the name of that organization instead of your username: `--hub_model_id huggingface/finetuned-bert-mrpc`.
A few notes on this integration:
- you will need to be logged in to the Hugging Face website locally for it to work, the easiest way to achieve this is to run `huggingface-cli login` and then type your username and password when prompted. You can also pass along your authentication token with the `--hub_token` argument.
- the `output_dir` you pick will either need to be a new folder or a local clone of the distant repository you are using.
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/requirements.txt | datasets >= 1.1.3
jax>=0.2.8
jaxlib>=0.1.59
flax>=0.3.5
optax>=0.0.9
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/run_mlm_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library models for masked language modeling (BERT, ALBERT, RoBERTa...) with whole word masking on a
text file or a dataset.
Here is the full list of checkpoints on the hub that can be fine-tuned by this script:
https://huggingface.co/models?filter=fill-mask
"""
import json
import logging
import math
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from itertools import chain
# You can also adapt this script on your own masked language modeling task. Pointers for this are left as comments.
from pathlib import Path
from typing import Dict, List, Optional, Tuple
import flax
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import load_dataset
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_MASKED_LM_MAPPING,
AutoConfig,
AutoTokenizer,
FlaxAutoModelForMaskedLM,
HfArgumentParser,
PreTrainedTokenizerBase,
TensorType,
is_tensorboard_available,
set_seed,
)
from transformers.utils import send_example_telemetry
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_MASKED_LM_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
gradient_checkpointing: bool = field(
default=False,
metadata={
"help": "If True, use gradient checkpointing to save memory at the expense of slower backward pass."
},
)
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
train_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input train ref data file for whole word masking in Chinese."},
)
validation_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input validation ref data file for whole word masking in Chinese."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
validation_split_percentage: Optional[int] = field(
default=5,
metadata={
"help": "The percentage of the train set used as validation set in case there's no validation split"
},
)
max_seq_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated. Default to the max input length of the model."
)
},
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
mlm_probability: float = field(
default=0.15, metadata={"help": "Ratio of tokens to mask for masked language modeling loss"}
)
pad_to_max_length: bool = field(
default=False,
metadata={
"help": (
"Whether to pad all samples to `max_seq_length`. "
"If False, will pad the samples dynamically when batching to the maximum length in the batch."
)
},
)
line_by_line: bool = field(
default=False,
metadata={"help": "Whether distinct lines of text in the dataset are to be handled as distinct sequences."},
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json", "txt"], "`train_file` should be a csv, a json or a txt file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json", "txt"], "`validation_file` should be a csv, a json or a txt file."
@flax.struct.dataclass
class FlaxDataCollatorForLanguageModeling:
"""
Data collator used for language modeling. Inputs are dynamically padded to the maximum length of a batch if they
are not all of the same length.
Args:
tokenizer (:class:`~transformers.PreTrainedTokenizer` or :class:`~transformers.PreTrainedTokenizerFast`):
The tokenizer used for encoding the data.
mlm_probability (:obj:`float`, `optional`, defaults to 0.15):
The probability with which to (randomly) mask tokens in the input.
.. note::
For best performance, this data collator should be used with a dataset having items that are dictionaries or
BatchEncoding, with the :obj:`"special_tokens_mask"` key, as returned by a
:class:`~transformers.PreTrainedTokenizer` or a :class:`~transformers.PreTrainedTokenizerFast` with the
argument :obj:`return_special_tokens_mask=True`.
"""
tokenizer: PreTrainedTokenizerBase
mlm_probability: float = 0.15
def __post_init__(self):
if self.tokenizer.mask_token is None:
raise ValueError(
"This tokenizer does not have a mask token which is necessary for masked language modeling. "
"You should pass `mlm=False` to train on causal language modeling instead."
)
def __call__(self, examples: List[Dict[str, np.ndarray]], pad_to_multiple_of: int) -> Dict[str, np.ndarray]:
# Handle dict or lists with proper padding and conversion to tensor.
batch = self.tokenizer.pad(examples, pad_to_multiple_of=pad_to_multiple_of, return_tensors=TensorType.NUMPY)
# If special token mask has been preprocessed, pop it from the dict.
special_tokens_mask = batch.pop("special_tokens_mask", None)
batch["input_ids"], batch["labels"] = self.mask_tokens(
batch["input_ids"], special_tokens_mask=special_tokens_mask
)
return batch
def mask_tokens(
self, inputs: np.ndarray, special_tokens_mask: Optional[np.ndarray]
) -> Tuple[np.ndarray, np.ndarray]:
"""
Prepare masked tokens inputs/labels for masked language modeling: 80% MASK, 10% random, 10% original.
"""
labels = inputs.copy()
# We sample a few tokens in each sequence for MLM training (with probability `self.mlm_probability`)
probability_matrix = np.full(labels.shape, self.mlm_probability)
special_tokens_mask = special_tokens_mask.astype("bool")
probability_matrix[special_tokens_mask] = 0.0
masked_indices = np.random.binomial(1, probability_matrix).astype("bool")
labels[~masked_indices] = -100 # We only compute loss on masked tokens
# 80% of the time, we replace masked input tokens with tokenizer.mask_token ([MASK])
indices_replaced = np.random.binomial(1, np.full(labels.shape, 0.8)).astype("bool") & masked_indices
inputs[indices_replaced] = self.tokenizer.convert_tokens_to_ids(self.tokenizer.mask_token)
# 10% of the time, we replace masked input tokens with random word
indices_random = np.random.binomial(1, np.full(labels.shape, 0.5)).astype("bool")
indices_random &= masked_indices & ~indices_replaced
random_words = np.random.randint(self.tokenizer.vocab_size, size=labels.shape, dtype="i4")
inputs[indices_random] = random_words[indices_random]
# The rest of the time (10% of the time) we keep the masked input tokens unchanged
return inputs, labels
def generate_batch_splits(samples_idx: np.ndarray, batch_size: int, drop_last=True) -> np.ndarray:
"""Generate batches of data for a specified batch size from sample indices. If the dataset size is not divisible by
the batch size and `drop_last` is `True`, the last incomplete batch is dropped. Else, it is returned."""
num_samples = len(samples_idx)
if drop_last:
samples_to_remove = num_samples % batch_size
if samples_to_remove != 0:
samples_idx = samples_idx[:-samples_to_remove]
sections_split = num_samples // batch_size
samples_idx = samples_idx.reshape((sections_split, batch_size))
else:
sections_split = math.ceil(num_samples / batch_size)
samples_idx = np.array_split(samples_idx, sections_split)
return samples_idx
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_mlm", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
level=logging.INFO,
datefmt="[%X]",
)
# Log on each process the small summary:
logger = logging.getLogger(__name__)
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Set seed before initializing model.
set_seed(training_args.seed)
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
#
# In distributed training, the load_dataset function guarantees that only one local process can concurrently
# download the dataset.
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if extension == "txt":
extension = "text"
datasets = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
extension,
data_files=data_files,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
extension,
data_files=data_files,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
if model_args.config_name:
config = AutoConfig.from_pretrained(
model_args.config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
config = AutoConfig.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
# Preprocessing the datasets.
# First we tokenize all the texts.
if training_args.do_train:
column_names = datasets["train"].column_names
else:
column_names = datasets["validation"].column_names
text_column_name = "text" if "text" in column_names else column_names[0]
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
if data_args.line_by_line:
# When using line_by_line, we just tokenize each nonempty line.
padding = "max_length" if data_args.pad_to_max_length else False
def tokenize_function(examples):
# Remove empty lines
examples = [line for line in examples if len(line) > 0 and not line.isspace()]
return tokenizer(
examples,
return_special_tokens_mask=True,
padding=padding,
truncation=True,
max_length=max_seq_length,
)
tokenized_datasets = datasets.map(
tokenize_function,
input_columns=[text_column_name],
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
else:
# Otherwise, we tokenize every text, then concatenate them together before splitting them in smaller parts.
# We use `return_special_tokens_mask=True` because DataCollatorForLanguageModeling (see below) is more
# efficient when it receives the `special_tokens_mask`.
def tokenize_function(examples):
return tokenizer(examples[text_column_name], return_special_tokens_mask=True)
tokenized_datasets = datasets.map(
tokenize_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
# Main data processing function that will concatenate all texts from our dataset and generate chunks of
# max_seq_length.
def group_texts(examples):
# Concatenate all texts.
concatenated_examples = {k: list(chain(*examples[k])) for k in examples.keys()}
total_length = len(concatenated_examples[list(examples.keys())[0]])
# We drop the small remainder, we could add padding if the model supported it instead of this drop, you can
# customize this part to your needs.
if total_length >= max_seq_length:
total_length = (total_length // max_seq_length) * max_seq_length
# Split by chunks of max_len.
result = {
k: [t[i : i + max_seq_length] for i in range(0, total_length, max_seq_length)]
for k, t in concatenated_examples.items()
}
return result
# Note that with `batched=True`, this map processes 1,000 texts together, so group_texts throws away a
# remainder for each of those groups of 1,000 texts. You can adjust that batch_size here but a higher value
# might be slower to preprocess.
#
# To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
# https://huggingface.co/docs/datasets/process#map
tokenized_datasets = tokenized_datasets.map(
group_texts,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Data collator
# This one will take care of randomly masking the tokens.
data_collator = FlaxDataCollatorForLanguageModeling(tokenizer=tokenizer, mlm_probability=data_args.mlm_probability)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
if model_args.model_name_or_path:
model = FlaxAutoModelForMaskedLM.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
model = FlaxAutoModelForMaskedLM.from_config(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
trust_remote_code=model_args.trust_remote_code,
)
if training_args.gradient_checkpointing:
model.enable_gradient_checkpointing()
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
num_train_steps = len(tokenized_datasets["train"]) // train_batch_size * num_epochs
# Create learning rate schedule
warmup_fn = optax.linear_schedule(
init_value=0.0, end_value=training_args.learning_rate, transition_steps=training_args.warmup_steps
)
decay_fn = optax.linear_schedule(
init_value=training_args.learning_rate,
end_value=0,
transition_steps=num_train_steps - training_args.warmup_steps,
)
linear_decay_lr_schedule_fn = optax.join_schedules(
schedules=[warmup_fn, decay_fn], boundaries=[training_args.warmup_steps]
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
if training_args.adafactor:
# We use the default parameters here to initialize adafactor,
# For more details about the parameters please check https://github.com/deepmind/optax/blob/ed02befef9bf81cbbf236be3d2b0e032e9ed4a40/optax/_src/alias.py#L74
optimizer = optax.adafactor(
learning_rate=linear_decay_lr_schedule_fn,
)
else:
optimizer = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = train_state.TrainState.create(apply_fn=model.__call__, params=model.params, tx=optimizer)
# Define gradient update step fn
def train_step(state, batch, dropout_rng):
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
def loss_fn(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
# compute loss, ignore padded input tokens
label_mask = jnp.where(labels > 0, 1.0, 0.0)
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1])) * label_mask
# take average
loss = loss.sum()
num_labels = label_mask.sum()
return loss, num_labels
grad_fn = jax.value_and_grad(loss_fn, has_aux=True)
(loss, num_labels), grad = grad_fn(state.params)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
# true grad = total grad / total samples
grad = jax.lax.psum(grad, "batch")
grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
new_state = state.apply_gradients(grads=grad)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
return new_state, metrics, new_dropout_rng
# Create parallel version of the train step
p_train_step = jax.pmap(train_step, "batch", donate_argnums=(0,))
# Define eval fn
def eval_step(params, batch):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
# compute loss, ignore padded input tokens
label_mask = jnp.where(labels > 0, 1.0, 0.0)
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1])) * label_mask
# compute accuracy
accuracy = jnp.equal(jnp.argmax(logits, axis=-1), labels) * label_mask
# summarize metrics
metrics = {"loss": loss.sum(), "accuracy": accuracy.sum(), "normalizer": label_mask.sum()}
metrics = jax.lax.psum(metrics, axis_name="batch")
return metrics
p_eval_step = jax.pmap(eval_step, "batch", donate_argnums=(0,))
# Replicate the train state on each device
state = jax_utils.replicate(state)
train_time = 0
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# Generate an epoch by shuffling sampling indices from the train dataset
num_train_samples = len(tokenized_datasets["train"])
# Avoid using jax.numpy here in case of TPU training
train_samples_idx = np.random.permutation(np.arange(num_train_samples))
train_batch_idx = generate_batch_splits(train_samples_idx, train_batch_size)
# Gather the indexes for creating the batch and do a training step
for step, batch_idx in enumerate(tqdm(train_batch_idx, desc="Training...", position=1)):
samples = [tokenized_datasets["train"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples, pad_to_multiple_of=16)
# Model forward
model_inputs = shard(model_inputs.data)
state, train_metric, dropout_rngs = p_train_step(state, model_inputs, dropout_rngs)
train_metrics.append(train_metric)
cur_step = epoch * (num_train_samples // train_batch_size) + step
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = jax_utils.unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step} | Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
train_metrics = []
if cur_step % training_args.eval_steps == 0 and cur_step > 0:
# ======================== Evaluating ==============================
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size, drop_last=False)
eval_metrics = []
for i, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples, pad_to_multiple_of=16)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.sum, eval_metrics)
eval_normalizer = eval_metrics.pop("normalizer")
eval_metrics = jax.tree_util.tree_map(lambda x: x / eval_normalizer, eval_metrics)
# Update progress bar
epochs.desc = f"Step... ({cur_step} | Loss: {eval_metrics['loss']}, Acc: {eval_metrics['accuracy']})"
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if cur_step % training_args.save_steps == 0 and cur_step > 0:
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
# Eval after training
if training_args.do_eval:
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size, drop_last=False)
eval_metrics = []
for _, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples, pad_to_multiple_of=16)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(lambda metric: jnp.sum(metric).item(), eval_metrics)
eval_normalizer = eval_metrics.pop("normalizer")
eval_metrics = jax.tree_util.tree_map(lambda x: x / eval_normalizer, eval_metrics)
try:
perplexity = math.exp(eval_metrics["loss"])
except OverflowError:
perplexity = float("inf")
eval_metrics["perplexity"] = perplexity
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/run_clm_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Pre-training/Fine-tuning the library models for causal language modeling (GPT, GPT-2, CTRL, ...) on a text file or a dataset.
Here is the full list of checkpoints on the hub that can be fine-tuned by this script:
https://huggingface.co/models?filter=text-generation
"""
# You can also adapt this script on your own causal language modeling task. Pointers for this are left as comments.
import json
import logging
import math
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from itertools import chain
from pathlib import Path
from typing import Callable, Optional
import datasets
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import Dataset, load_dataset
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
from huggingface_hub import HfApi
from tqdm import tqdm
import transformers
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_CAUSAL_LM_MAPPING,
AutoConfig,
AutoTokenizer,
FlaxAutoModelForCausalLM,
HfArgumentParser,
is_tensorboard_available,
set_seed,
)
from transformers.testing_utils import CaptureLogger
from transformers.utils import send_example_telemetry
logger = logging.getLogger(__name__)
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_CAUSAL_LM_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
validation_split_percentage: Optional[int] = field(
default=5,
metadata={
"help": "The percentage of the train set used as validation set in case there's no validation split"
},
)
block_size: Optional[int] = field(
default=None,
metadata={
"help": (
"Optional input sequence length after tokenization. "
"The training dataset will be truncated in block of this size for training. "
"Default to the model max input length for single sentence inputs (take into account special tokens)."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
keep_linebreaks: bool = field(
default=True, metadata={"help": "Whether to keep line breaks when using TXT files or not."}
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
if extension not in ["csv", "json", "txt"]:
raise ValueError("train_file` should be a csv, json or text file.")
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
if extension not in ["csv", "json", "txt"]:
raise ValueError("`validation_file` should be a csv, json or text file.")
class TrainState(train_state.TrainState):
dropout_rng: jnp.ndarray
def replicate(self):
return jax_utils.replicate(self).replace(dropout_rng=shard_prng_key(self.dropout_rng))
def data_loader(rng: jax.random.PRNGKey, dataset: Dataset, batch_size: int, shuffle: bool = False, drop_last=True):
"""
Returns batches of size `batch_size` from `dataset`. If `drop_last` is set to `False`, the final batch may be incomplete,
and range in size from 1 to `batch_size`. Shuffle batches if `shuffle` is `True`.
"""
if shuffle:
batch_idx = jax.random.permutation(rng, len(dataset))
batch_idx = np.asarray(batch_idx)
else:
batch_idx = np.arange(len(dataset))
if drop_last:
steps_per_epoch = len(dataset) // batch_size
batch_idx = batch_idx[: steps_per_epoch * batch_size] # Skip incomplete batch.
batch_idx = batch_idx.reshape((steps_per_epoch, batch_size))
else:
steps_per_epoch = math.ceil(len(dataset) / batch_size)
batch_idx = np.array_split(batch_idx, steps_per_epoch)
for idx in batch_idx:
batch = dataset[idx]
batch = {k: np.array(v) for k, v in batch.items()}
yield batch
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_clm", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Set seed before initializing model.
set_seed(training_args.seed)
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
#
# In distributed training, the load_dataset function guarantees that only one local process can concurrently
# download the dataset.
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
dataset = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
keep_in_memory=False,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in dataset.keys():
dataset["validation"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
dataset["train"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
else:
data_files = {}
dataset_args = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if extension == "txt":
extension = "text"
dataset_args["keep_linebreaks"] = data_args.keep_linebreaks
dataset = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
**dataset_args,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in dataset.keys():
dataset["validation"] = load_dataset(
extension,
data_files=data_files,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
**dataset_args,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
dataset["train"] = load_dataset(
extension,
data_files=data_files,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
**dataset_args,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
# Distributed training:
# The .from_pretrained methods guarantee that only one local process can concurrently
# download model & vocab.
if model_args.config_name:
config = AutoConfig.from_pretrained(
model_args.config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
config = AutoConfig.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
if model_args.model_name_or_path:
model = FlaxAutoModelForCausalLM.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
model = FlaxAutoModelForCausalLM.from_config(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
trust_remote_code=model_args.trust_remote_code,
)
# Preprocessing the datasets.
# First we tokenize all the texts.
if training_args.do_train:
column_names = dataset["train"].column_names
else:
column_names = dataset["validation"].column_names
text_column_name = "text" if "text" in column_names else column_names[0]
# since this will be pickled to avoid _LazyModule error in Hasher force logger loading before tokenize_function
tok_logger = transformers.utils.logging.get_logger("transformers.tokenization_utils_base")
def tokenize_function(examples):
with CaptureLogger(tok_logger) as cl:
output = tokenizer(examples[text_column_name])
# clm input could be much much longer than block_size
if "Token indices sequence length is longer than the" in cl.out:
tok_logger.warning(
"^^^^^^^^^^^^^^^^ Please ignore the warning above - this long input will be chunked into smaller bits"
" before being passed to the model."
)
return output
tokenized_datasets = dataset.map(
tokenize_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.block_size is None:
block_size = tokenizer.model_max_length
if block_size > config.max_position_embeddings:
logger.warning(
f"The tokenizer picked seems to have a very large `model_max_length` ({tokenizer.model_max_length}). "
f"Using block_size={min(1024, config.max_position_embeddings)} instead. You can change that default value by passing --block_size xxx."
)
block_size = min(1024, config.max_position_embeddings)
else:
if data_args.block_size > tokenizer.model_max_length:
logger.warning(
f"The block_size passed ({data_args.block_size}) is larger than the maximum length for the model "
f"({tokenizer.model_max_length}). Using block_size={tokenizer.model_max_length}."
)
block_size = min(data_args.block_size, tokenizer.model_max_length)
# Main data processing function that will concatenate all texts from our dataset and generate chunks of block_size.
def group_texts(examples):
# Concatenate all texts.
concatenated_examples = {k: list(chain(*examples[k])) for k in examples.keys()}
total_length = len(concatenated_examples[list(examples.keys())[0]])
# We drop the small remainder, we could add padding if the model supported it instead of this drop, you can
# customize this part to your needs.
if total_length >= block_size:
total_length = (total_length // block_size) * block_size
# Split by chunks of max_len.
result = {
k: [t[i : i + block_size] for i in range(0, total_length, block_size)]
for k, t in concatenated_examples.items()
}
result["labels"] = result["input_ids"].copy()
return result
# Note that with `batched=True`, this map processes 1,000 texts together, so group_texts throws away a remainder
# for each of those groups of 1,000 texts. You can adjust that batch_size here but a higher value might be slower
# to preprocess.
#
# To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
# https://huggingface.co/docs/datasets/process#map
lm_datasets = tokenized_datasets.map(
group_texts,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
if training_args.do_train:
if "train" not in tokenized_datasets:
raise ValueError("--do_train requires a train dataset")
train_dataset = lm_datasets["train"]
if data_args.max_train_samples is not None:
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
if training_args.do_eval:
if "validation" not in tokenized_datasets:
raise ValueError("--do_eval requires a validation dataset")
eval_dataset = lm_datasets["validation"]
if data_args.max_eval_samples is not None:
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
rng, dropout_rng = jax.random.split(rng)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
steps_per_epoch = len(train_dataset) // train_batch_size
total_train_steps = steps_per_epoch * num_epochs
# Create learning rate schedule
linear_decay_lr_schedule_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
if training_args.adafactor:
# We use the default parameters here to initialize adafactor,
# For more details about the parameters please check https://github.com/deepmind/optax/blob/ed02befef9bf81cbbf236be3d2b0e032e9ed4a40/optax/_src/alias.py#L74
optimizer = optax.adafactor(
learning_rate=linear_decay_lr_schedule_fn,
)
else:
optimizer = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = TrainState.create(apply_fn=model.__call__, params=model.params, tx=optimizer, dropout_rng=dropout_rng)
def loss_fn(logits, labels):
shift_logits = logits[..., :-1, :]
shift_labels = labels[..., 1:]
loss = optax.softmax_cross_entropy(shift_logits, onehot(shift_labels, shift_logits.shape[-1]))
return loss.mean()
# Define gradient update step fn
def train_step(state, batch):
dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
def compute_loss(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss = loss_fn(logits, labels)
return loss
grad_fn = jax.value_and_grad(compute_loss)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad, dropout_rng=new_dropout_rng)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
metrics = jax.lax.pmean(metrics, axis_name="batch")
return new_state, metrics
# Define eval fn
def eval_step(params, batch):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
loss = loss_fn(logits, labels)
# summarize metrics
metrics = {"loss": loss}
metrics = jax.lax.pmean(metrics, axis_name="batch")
return metrics
# Create parallel version of the train and eval step
p_train_step = jax.pmap(train_step, "batch", donate_argnums=(0,))
p_eval_step = jax.pmap(eval_step, "batch")
# Replicate the train state on each device
state = state.replicate()
logger.info("***** Running training *****")
logger.info(f" Num examples = {len(train_dataset)}")
logger.info(f" Num Epochs = {num_epochs}")
logger.info(f" Instantaneous batch size per device = {training_args.per_device_train_batch_size}")
logger.info(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
logger.info(f" Total optimization steps = {total_train_steps}")
train_time = 0
train_metrics = []
epochs = tqdm(range(num_epochs), desc="Epoch ... ", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# Generate an epoch by shuffling sampling indices from the train dataset
train_loader = data_loader(input_rng, train_dataset, train_batch_size, shuffle=True)
steps_per_epoch = len(train_dataset) // train_batch_size
# train
for step in tqdm(range(steps_per_epoch), desc="Training...", position=1, leave=False):
batch = next(train_loader)
batch = shard(batch)
state, train_metric = p_train_step(state, batch)
train_metrics.append(train_metric)
cur_step = epoch * (len(train_dataset) // train_batch_size) + step
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step} | Loss: {train_metric['loss'].mean()}, Learning Rate:"
f" {train_metric['learning_rate'].mean()})"
)
train_metrics = []
if cur_step % training_args.eval_steps == 0 and cur_step > 0:
# ======================== Evaluating ==============================
eval_metrics = []
eval_loader = data_loader(input_rng, eval_dataset, eval_batch_size, drop_last=False)
eval_steps = math.ceil(len(eval_dataset) / eval_batch_size)
for _ in tqdm(range(eval_steps), desc="Evaluating...", position=2, leave=False):
# Model forward
batch = next(eval_loader)
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.mean, eval_metrics)
try:
eval_metrics["perplexity"] = math.exp(eval_metrics["loss"])
except OverflowError:
eval_metrics["perplexity"] = float("inf")
# Print metrics and update progress bar
desc = (
f"Step... ({cur_step} | Eval Loss: {eval_metrics['loss']} | Eval Perplexity:"
f" {eval_metrics['perplexity']})"
)
epochs.write(desc)
epochs.desc = desc
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if cur_step % training_args.save_steps == 0 and cur_step > 0:
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(unreplicate(state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
# Eval after training
if training_args.do_eval:
eval_metrics = []
eval_loader = data_loader(input_rng, eval_dataset, eval_batch_size, drop_last=False)
eval_steps = math.ceil(len(eval_dataset) / eval_batch_size)
for _ in tqdm(range(eval_steps), desc="Evaluating...", position=2, leave=False):
# Model forward
batch = next(eval_loader)
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(lambda x: jnp.mean(x).item(), eval_metrics)
try:
eval_metrics["perplexity"] = math.exp(eval_metrics["loss"])
except OverflowError:
eval_metrics["perplexity"] = float("inf")
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/t5_tokenizer_model.py | #!/usr/bin/env python3
import json
from typing import Iterator, List, Union
from tokenizers import AddedToken, Regex, Tokenizer, decoders, normalizers, pre_tokenizers, trainers
from tokenizers.implementations.base_tokenizer import BaseTokenizer
from tokenizers.models import Unigram
from tokenizers.processors import TemplateProcessing
class SentencePieceUnigramTokenizer(BaseTokenizer):
"""
This class is a copy of `DeDLOC's tokenizer implementation <https://github.com/yandex-research/DeDLOC/blob/main/sahajbert/tokenizer/tokenizer_model.py>`__ .
Custom SentencePiece Unigram Tokenizer with NMT, NKFC, spaces and lower-casing characters normalization
Represents the Unigram algorithm, with the pretokenization used by SentencePiece
"""
def __init__(
self,
replacement: str = "▁",
add_prefix_space: bool = True,
unk_token: Union[str, AddedToken] = "<unk>",
eos_token: Union[str, AddedToken] = "</s>",
pad_token: Union[str, AddedToken] = "<pad>",
):
self.special_tokens = {
"pad": {"id": 0, "token": pad_token},
"eos": {"id": 1, "token": eos_token},
"unk": {"id": 2, "token": unk_token},
}
self.special_tokens_list = [None] * len(self.special_tokens)
for token_dict in self.special_tokens.values():
self.special_tokens_list[token_dict["id"]] = token_dict["token"]
tokenizer = Tokenizer(Unigram())
tokenizer.normalizer = normalizers.Sequence(
[
normalizers.Nmt(),
normalizers.NFKC(),
normalizers.Replace(Regex(" {2,}"), " "),
normalizers.Lowercase(),
]
)
tokenizer.pre_tokenizer = pre_tokenizers.Sequence(
[
pre_tokenizers.Metaspace(
replacement=replacement, add_prefix_space="always" if add_prefix_space else "never"
),
pre_tokenizers.Digits(individual_digits=True),
pre_tokenizers.Punctuation(),
]
)
tokenizer.decoder = decoders.Metaspace(
replacement=replacement, add_prefix_space="always" if add_prefix_space else "never"
)
tokenizer.post_processor = TemplateProcessing(
single=f"$A {self.special_tokens['eos']['token']}",
special_tokens=[(self.special_tokens["eos"]["token"], self.special_tokens["eos"]["id"])],
)
parameters = {
"model": "SentencePieceUnigram",
"replacement": replacement,
"add_prefix_space": add_prefix_space,
}
super().__init__(tokenizer, parameters)
def train(
self,
files: Union[str, List[str]],
vocab_size: int = 8000,
show_progress: bool = True,
):
"""Train the model using the given files"""
trainer = trainers.UnigramTrainer(
vocab_size=vocab_size,
special_tokens=self.special_tokens_list,
show_progress=show_progress,
)
if isinstance(files, str):
files = [files]
self._tokenizer.train(files, trainer=trainer)
self.add_unk_id()
def train_from_iterator(
self,
iterator: Union[Iterator[str], Iterator[Iterator[str]]],
vocab_size: int = 8000,
show_progress: bool = True,
):
"""Train the model using the given iterator"""
trainer = trainers.UnigramTrainer(
vocab_size=vocab_size,
special_tokens=self.special_tokens_list,
show_progress=show_progress,
)
self._tokenizer.train_from_iterator(iterator, trainer=trainer)
self.add_unk_id()
def add_unk_id(self):
tokenizer_json = json.loads(self._tokenizer.to_str())
tokenizer_json["model"]["unk_id"] = self.special_tokens["unk"]["id"]
self._tokenizer = Tokenizer.from_str(json.dumps(tokenizer_json))
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/run_bart_dlm_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Pretraining the library models for denoising language modeling on a text file or a dataset.
Here is the full list of checkpoints on the hub that can be pretrained by this script:
https://huggingface.co/models?filter=bart
"""
# You can also adapt this script on your own denoising language modeling task. Pointers for this are left as comments.
import json
import logging
import math
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from itertools import chain
from pathlib import Path
from typing import Dict, List, Optional
import flax
import jax
import jax.numpy as jnp
import nltk
import numpy as np
import optax
from datasets import load_dataset
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_MASKED_LM_MAPPING,
AutoTokenizer,
BartConfig,
BatchEncoding,
FlaxBartForConditionalGeneration,
HfArgumentParser,
PreTrainedTokenizerBase,
is_tensorboard_available,
set_seed,
)
from transformers.models.bart.modeling_flax_bart import shift_tokens_right
from transformers.utils import send_example_telemetry
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_MASKED_LM_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
train_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input train ref data file for whole word masking in Chinese."},
)
validation_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input validation ref data file for whole word masking in Chinese."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
validation_split_percentage: Optional[int] = field(
default=5,
metadata={
"help": "The percentage of the train set used as validation set in case there's no validation split"
},
)
max_seq_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization and masking. Sequences longer than this"
" will be truncated. Default to the max input length of the model."
)
},
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
mlm_probability: float = field(
default=0.3, metadata={"help": "Ratio of tokens to mask for span masked language modeling loss"}
)
permute_sentence_ratio: float = field(
default=1.0, metadata={"help": "Ratio of sentences to be permuted in each document"}
)
poisson_lambda: float = field(
default=3.0, metadata={"help": "Mean of Poisson distribution used to generate span-lengths to be masked"}
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
if extension not in ["csv", "json", "txt"]:
raise ValueError("train_file` should be a csv, json or text file.")
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
if extension not in ["csv", "json", "txt"]:
raise ValueError("`validation_file` should be a csv, json or text file.")
@flax.struct.dataclass
class FlaxDataCollatorForBartDenoisingLM:
"""
Data collator used for BART denoising language modeling. The code is largely copied from
`<https://github.com/morganmcg1/rotobart/blob/main/data_collator.py#L223>`__.
For more information on how BART denoising language modeling works, one can take a look
at the `official paper <https://arxiv.org/pdf/1910.13461.pdf>`__
or the `official code for preprocessing <https://github.com/facebookresearch/fairseq/blob/main/fairseq/data/denoising_dataset.py>`__ .
Args:
tokenizer (:class:`~transformers.PreTrainedTokenizer` or :class:`~transformers.PreTrainedTokenizerFast`):
The tokenizer used for encoding the data
mask_ratio (:obj:`float`):
The probability with which to (randomly) mask tokens in the input
poisson_lambda (:obj:`float`):
Mean parameter of Poisson distribution used to generate span-lengths to be masked
permute_sentence_ratio (:obj:`float`):
Ratio of sentences to be permuted in each document
decoder_start_token_id: (:obj:`int):
The decoder start token id of the model
"""
tokenizer: PreTrainedTokenizerBase
decoder_start_token_id: int
mask_ratio: float = 0.3
poisson_lambda: float = 3.0
permute_sentence_ratio: float = 1.0
def __post_init__(self):
if self.tokenizer.mask_token is None or self.tokenizer.eos_token is None:
raise ValueError(
"This tokenizer does not have a mask token or eos token token which is necessary for denoising"
" language modeling. "
)
def __call__(self, examples: List[Dict[str, List[int]]]) -> BatchEncoding:
# convert list to dict and tensorize input
batch = BatchEncoding(
{k: np.array([examples[i][k] for i in range(len(examples))]) for k, v in examples[0].items()}
)
batch["labels"] = batch["input_ids"].copy()
batch["decoder_input_ids"] = shift_tokens_right(
batch["labels"], self.tokenizer.pad_token_id, self.decoder_start_token_id
)
# permuting sentences
do_permute = False
if self.permute_sentence_ratio > 0.0:
batch["input_ids"] = self.permute_sentences(batch["input_ids"])
do_permute = True
# masking span of tokens (text infilling in the paper)
if self.mask_ratio:
batch["input_ids"], batch["labels"] = self.span_mask_tokens(
batch["input_ids"], batch["labels"], do_permute
)
# ignore pad tokens
batch["attention_mask"] = (batch["input_ids"] != self.tokenizer.pad_token_id).astype(int)
batch["decoder_attention_mask"] = (batch["decoder_input_ids"] != self.tokenizer.pad_token_id).astype(int)
return batch
def permute_sentences(self, input_ids):
"""
Shuffle sentences in each document.
"""
results = input_ids.copy()
# find end locations of sentences
end_sentence_mask = input_ids == self.tokenizer.pad_token_id
sentence_ends = np.argwhere(end_sentence_mask)
sentence_ends[:, 1] += 1
example_has_multiple_sentences, num_sentences = np.unique(sentence_ends[:, 0], return_counts=True)
num_sentences_map = dict(zip(example_has_multiple_sentences, num_sentences))
num_to_permute = np.ceil(num_sentences * self.permute_sentence_ratio).astype(int)
num_to_permute_map = dict(zip(example_has_multiple_sentences, num_to_permute))
sentence_ends = np.split(sentence_ends[:, 1], np.unique(sentence_ends[:, 0], return_index=True)[1][1:])
sentence_ends_map = dict(zip(example_has_multiple_sentences, sentence_ends))
for i in range(input_ids.shape[0]):
if i not in example_has_multiple_sentences:
continue
substitutions = np.random.permutation(num_sentences_map[i])[: num_to_permute_map[i]]
ordering = np.arange(0, num_sentences_map[i])
ordering[substitutions] = substitutions[np.random.permutation(num_to_permute_map[i])]
# write shuffled sentences into results
index = 0
for j in ordering:
sentence = input_ids[i, (sentence_ends_map[i][j - 1] if j > 0 else 0) : sentence_ends_map[i][j]]
results[i, index : index + sentence.shape[0]] = sentence
index += sentence.shape[0]
return results
def span_mask_tokens(self, input_ids, labels, do_permute):
"""
Sampling text spans with span lengths drawn from a Poisson distribution and masking them.
"""
special_tokens_mask_labels = [
self.tokenizer.get_special_tokens_mask(val, already_has_special_tokens=True) for val in labels.tolist()
]
special_tokens_mask_inputs = [
self.tokenizer.get_special_tokens_mask(val, already_has_special_tokens=True) for val in input_ids.tolist()
]
special_tokens_mask_labels = np.array(special_tokens_mask_labels, dtype=bool)
special_tokens_mask_inputs = np.array(special_tokens_mask_inputs, dtype=bool)
# determine how many tokens we need to mask in total
is_token_mask = ~(input_ids == self.tokenizer.pad_token_id) & ~special_tokens_mask_inputs
num_tokens_to_mask = int(math.ceil(is_token_mask.astype(float).sum() * self.mask_ratio))
if num_tokens_to_mask == 0:
return input_ids, labels
# generate a sufficient number of span lengths
span_lengths = np.random.poisson(lam=self.poisson_lambda, size=(num_tokens_to_mask,))
while np.cumsum(span_lengths, 0)[-1] < num_tokens_to_mask:
span_lengths = np.concatenate(
[span_lengths, np.random.poisson(lam=self.poisson_lambda, size=(num_tokens_to_mask,))]
)
# remove all spans of length 0
# note that BART inserts additional mask tokens where length == 0,
# which we do not implement for now as it adds additional complexity
span_lengths = span_lengths[span_lengths > 0]
# trim to about num_tokens_to_mask tokens
cutoff_idx = np.argmin(np.abs(np.cumsum(span_lengths, 0) - num_tokens_to_mask)) + 1
span_lengths = span_lengths[:cutoff_idx]
# randomly choose starting positions for masking
token_indices = np.argwhere(is_token_mask == 1)
span_starts = np.random.permutation(token_indices.shape[0])[: span_lengths.shape[0]]
# prepare mask
masked_indices = np.array(token_indices[span_starts])
mask = np.full_like(input_ids, fill_value=False)
# mask starting positions
for mi in masked_indices:
mask[tuple(mi)] = True
span_lengths -= 1
# fill up spans
max_index = input_ids.shape[1] - 1
remaining = (span_lengths > 0) & (masked_indices[:, 1] < max_index)
while np.any(remaining):
masked_indices[remaining, 1] += 1
for mi in masked_indices:
mask[tuple(mi)] = True
span_lengths -= 1
remaining = (span_lengths > 0) & (masked_indices[:, 1] < max_index)
# place the mask tokens
mask[np.where(special_tokens_mask_inputs)] = False
input_ids[np.where(mask)] = self.tokenizer.mask_token_id
if not do_permute:
labels[np.where(mask == 0)] = -100
else:
labels[np.where(special_tokens_mask_labels)] = -100
# remove mask tokens that are not starts of spans
to_remove = (mask == 1) & np.roll((mask == 1), 1, 1)
new_input_ids = np.full_like(input_ids, fill_value=self.tokenizer.pad_token_id)
for i, example in enumerate(input_ids):
new_example = example[~to_remove[i]]
new_input_ids[i, : new_example.shape[0]] = new_example
return new_input_ids, labels
def generate_batch_splits(samples_idx: np.ndarray, batch_size: int, drop_last=True) -> np.ndarray:
"""Generate batches of data for a specified batch size from sample indices. If the dataset size is not divisible by
the batch size and `drop_last` is `True`, the last incomplete batch is dropped. Else, it is returned."""
num_samples = len(samples_idx)
if drop_last:
samples_to_remove = num_samples % batch_size
if samples_to_remove != 0:
samples_idx = samples_idx[:-samples_to_remove]
sections_split = num_samples // batch_size
samples_idx = samples_idx.reshape((sections_split, batch_size))
else:
sections_split = math.ceil(num_samples / batch_size)
samples_idx = np.array_split(samples_idx, sections_split)
return samples_idx
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_bart_dlm", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
level=logging.INFO,
datefmt="[%X]",
)
# Log on each process the small summary:
logger = logging.getLogger(__name__)
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Set seed before initializing model.
set_seed(training_args.seed)
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if extension == "txt":
extension = "text"
datasets = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
extension,
data_files=data_files,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
extension,
data_files=data_files,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
if model_args.config_name:
config = BartConfig.from_pretrained(
model_args.config_name,
cache_dir=model_args.cache_dir,
vocab_size=len(tokenizer),
token=model_args.token,
)
elif model_args.model_name_or_path:
config = BartConfig.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
# Preprocessing the datasets.
# First we tokenize all the texts.
if training_args.do_train:
column_names = datasets["train"].column_names
else:
column_names = datasets["validation"].column_names
text_column_name = "text" if "text" in column_names else column_names[0]
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
# Use Punkt Sentence Tokenizer to divide a document into a list of sentences
nltk.download("punkt")
sentence_tokenizer = nltk.data.load("tokenizers/punkt/english.pickle")
def sentence_split_function(example):
sents = sentence_tokenizer.tokenize(example["text"])
# use pad token as end of sentence indicator
new_text = tokenizer.bos_token + f"{tokenizer.pad_token}".join(sents) + tokenizer.eos_token
return {"text": new_text}
split_datasets = datasets.map(
sentence_split_function,
batched=False,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
# Tokenize every text, then concatenate them together before splitting them in smaller parts.
# Since we make sure that all sequences are of the same length, no attention_mask is needed.
def tokenize_function(examples):
return tokenizer(examples[text_column_name], add_special_tokens=False, return_attention_mask=False)
tokenized_datasets = split_datasets.map(
tokenize_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=text_column_name,
load_from_cache_file=not data_args.overwrite_cache,
)
# Main data processing function that will concatenate all texts from our dataset and generate chunks of
# max_seq_length.
def group_texts(examples):
# Concatenate all texts.
concatenated_examples = {k: list(chain(*examples[k])) for k in examples.keys()}
total_length = len(concatenated_examples[list(examples.keys())[0]])
# We drop the small remainder, we could add padding if the model supported it instead of this drop, you can
# customize this part to your needs.
if total_length >= max_seq_length:
total_length = (total_length // max_seq_length) * max_seq_length
# Split by chunks of max_len.
result = {
k: [t[i : i + max_seq_length] for i in range(0, total_length, max_seq_length)]
for k, t in concatenated_examples.items()
}
return result
# Note that with `batched=True`, this map processes 1,000 texts together, so group_texts throws away a
# remainder for each of those groups of 1,000 texts. You can adjust that batch_size here but a higher value
# might be slower to preprocess.
#
# To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
# https://huggingface.co/docs/datasets/process#map
tokenized_datasets = tokenized_datasets.map(
group_texts,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
if model_args.model_name_or_path:
model = FlaxBartForConditionalGeneration.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
)
else:
config.vocab_size = len(tokenizer)
model = FlaxBartForConditionalGeneration(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
)
# Data collator
# This one will take care of randomly masking the tokens and permuting the sentences.
data_collator = FlaxDataCollatorForBartDenoisingLM(
tokenizer=tokenizer,
decoder_start_token_id=model.config.decoder_start_token_id,
mask_ratio=data_args.mlm_probability,
poisson_lambda=data_args.poisson_lambda,
permute_sentence_ratio=data_args.permute_sentence_ratio,
)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
num_train_steps = len(tokenized_datasets["train"]) // train_batch_size * num_epochs
# Create learning rate schedule
warmup_fn = optax.linear_schedule(
init_value=0.0, end_value=training_args.learning_rate, transition_steps=training_args.warmup_steps
)
decay_fn = optax.linear_schedule(
init_value=training_args.learning_rate,
end_value=0,
transition_steps=num_train_steps - training_args.warmup_steps,
)
linear_decay_lr_schedule_fn = optax.join_schedules(
schedules=[warmup_fn, decay_fn], boundaries=[training_args.warmup_steps]
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
if training_args.adafactor:
# We use the default parameters here to initialize adafactor,
# For more details about the parameters please check https://github.com/deepmind/optax/blob/ed02befef9bf81cbbf236be3d2b0e032e9ed4a40/optax/_src/alias.py#L74
optimizer = optax.adafactor(
learning_rate=linear_decay_lr_schedule_fn,
)
else:
optimizer = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = train_state.TrainState.create(apply_fn=model.__call__, params=model.params, tx=optimizer)
# Define gradient update step fn
def train_step(state, batch, dropout_rng):
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
def loss_fn(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
# compute loss, ignore padded input tokens and special tokens
label_mask = jnp.where(labels > 0, 1.0, 0.0)
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1])) * label_mask
# take average
loss = loss.sum()
num_labels = label_mask.sum()
return loss, num_labels
grad_fn = jax.value_and_grad(loss_fn, has_aux=True)
(loss, num_labels), grad = grad_fn(state.params)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
# true grad = total grad / total samples
grad = jax.lax.psum(grad, "batch")
grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
new_state = state.apply_gradients(grads=grad)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
return new_state, metrics, new_dropout_rng
# Create parallel version of the train step
p_train_step = jax.pmap(train_step, "batch", donate_argnums=(0,))
# Define eval fn
def eval_step(params, batch):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
# compute loss, ignore padded input tokens and special tokens
label_mask = jnp.where(labels > 0, 1.0, 0.0)
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1])) * label_mask
# compute accuracy
accuracy = jnp.equal(jnp.argmax(logits, axis=-1), labels) * label_mask
# summarize metrics
metrics = {"loss": loss.sum(), "accuracy": accuracy.sum(), "normalizer": label_mask.sum()}
metrics = jax.lax.psum(metrics, axis_name="batch")
return metrics
p_eval_step = jax.pmap(eval_step, "batch", donate_argnums=(0,))
# Replicate the train state on each device
state = jax_utils.replicate(state)
train_time = 0
epochs = tqdm(range(num_epochs), desc="Epoch ... ", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# Generate an epoch by shuffling sampling indices from the train dataset
num_train_samples = len(tokenized_datasets["train"])
# Avoid using jax.numpy here in case of TPU training
train_samples_idx = np.random.permutation(np.arange(num_train_samples))
train_batch_idx = generate_batch_splits(train_samples_idx, train_batch_size)
# Gather the indexes for creating the batch and do a training step
for step, batch_idx in enumerate(tqdm(train_batch_idx, desc="Training...", position=1)):
samples = [tokenized_datasets["train"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
# Model forward
model_inputs = shard(model_inputs.data)
state, train_metric, dropout_rngs = p_train_step(state, model_inputs, dropout_rngs)
train_metrics.append(train_metric)
cur_step = epoch * (num_train_samples // train_batch_size) + step
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = jax_utils.unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step} | Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
train_metrics = []
if cur_step % training_args.eval_steps == 0 and cur_step > 0:
# ======================== Evaluating ==============================
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size)
eval_metrics = []
for i, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.sum, eval_metrics)
eval_normalizer = eval_metrics.pop("normalizer")
eval_metrics = jax.tree_util.tree_map(lambda x: x / eval_normalizer, eval_metrics)
# Update progress bar
epochs.desc = f"Step... ({cur_step} | Loss: {eval_metrics['loss']}, Acc: {eval_metrics['accuracy']})"
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if cur_step % training_args.save_steps == 0 and cur_step > 0:
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
# Eval after training
if training_args.do_eval:
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size)
eval_metrics = []
for _, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(lambda metric: jnp.sum(metric).item(), eval_metrics)
eval_normalizer = eval_metrics.pop("normalizer")
eval_metrics = jax.tree_util.tree_map(lambda x: x / eval_normalizer, eval_metrics)
try:
perplexity = math.exp(eval_metrics["loss"])
except OverflowError:
perplexity = float("inf")
eval_metrics["perplexity"] = perplexity
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/run_t5_mlm_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Pretraining the library models for T5-like span-masked language modeling on a text file or a dataset.
Here is the full list of checkpoints on the hub that can be pretrained by this script:
https://huggingface.co/models?filter=t5
"""
import json
import logging
import math
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
# You can also adapt this script on your own masked language modeling task. Pointers for this are left as comments.
from enum import Enum
from itertools import chain
from pathlib import Path
from typing import Dict, List, Optional
import flax
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import load_dataset
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_MASKED_LM_MAPPING,
AutoTokenizer,
BatchEncoding,
FlaxT5ForConditionalGeneration,
HfArgumentParser,
PreTrainedTokenizerBase,
T5Config,
is_tensorboard_available,
set_seed,
)
from transformers.models.t5.modeling_flax_t5 import shift_tokens_right
from transformers.utils import send_example_telemetry
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_MASKED_LM_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
train_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input train ref data file for whole word masking in Chinese."},
)
validation_ref_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input validation ref data file for whole word masking in Chinese."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
validation_split_percentage: Optional[int] = field(
default=5,
metadata={
"help": "The percentage of the train set used as validation set in case there's no validation split"
},
)
max_seq_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization and masking. Sequences longer than this"
" will be truncated. Default to the max input length of the model."
)
},
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
mlm_probability: float = field(
default=0.15, metadata={"help": "Ratio of tokens to mask for span masked language modeling loss"}
)
mean_noise_span_length: float = field(
default=3.0,
metadata={"help": "Mean span length of masked tokens"},
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json", "txt"], "`train_file` should be a csv, a json or a txt file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json", "txt"], "`validation_file` should be a csv, a json or a txt file."
def compute_input_and_target_lengths(inputs_length, noise_density, mean_noise_span_length):
"""This function is copy of `random_spans_helper <https://github.com/google-research/text-to-text-transfer-transformer/blob/84f8bcc14b5f2c03de51bd3587609ba8f6bbd1cd/t5/data/preprocessors.py#L2466>`__ .
Training parameters to avoid padding with random_spans_noise_mask.
When training a model with random_spans_noise_mask, we would like to set the other
training hyperparmeters in a way that avoids padding.
This function helps us compute these hyperparameters.
We assume that each noise span in the input is replaced by extra_tokens_per_span_inputs sentinel tokens,
and each non-noise span in the targets is replaced by extra_tokens_per_span_targets sentinel tokens.
This function tells us the required number of tokens in the raw example (for split_tokens())
as well as the length of the encoded targets. Note that this function assumes
the inputs and targets will have EOS appended and includes that in the reported length.
Args:
inputs_length: an integer - desired length of the tokenized inputs sequence
noise_density: a float
mean_noise_span_length: a float
Returns:
tokens_length: length of original text in tokens
targets_length: an integer - length in tokens of encoded targets sequence
"""
def _tokens_length_to_inputs_length_targets_length(tokens_length):
num_noise_tokens = int(round(tokens_length * noise_density))
num_nonnoise_tokens = tokens_length - num_noise_tokens
num_noise_spans = int(round(num_noise_tokens / mean_noise_span_length))
# inputs contain all nonnoise tokens, sentinels for all noise spans
# and one EOS token.
_input_length = num_nonnoise_tokens + num_noise_spans + 1
_output_length = num_noise_tokens + num_noise_spans + 1
return _input_length, _output_length
tokens_length = inputs_length
while _tokens_length_to_inputs_length_targets_length(tokens_length + 1)[0] <= inputs_length:
tokens_length += 1
inputs_length, targets_length = _tokens_length_to_inputs_length_targets_length(tokens_length)
# minor hack to get the targets length to be equal to inputs length
# which is more likely to have been set to a nice round number.
if noise_density == 0.5 and targets_length > inputs_length:
tokens_length -= 1
targets_length -= 1
return tokens_length, targets_length
@flax.struct.dataclass
class FlaxDataCollatorForT5MLM:
"""
Data collator used for T5 span-masked language modeling.
It is made sure that after masking the inputs are of length `data_args.max_seq_length` and targets are also of fixed length.
For more information on how T5 span-masked language modeling works, one can take a look
at the `official paper <https://arxiv.org/pdf/1910.10683.pdf>`__
or the `official code for preprocessing <https://github.com/google-research/text-to-text-transfer-transformer/blob/master/t5/data/preprocessors.py>`__ .
Args:
tokenizer (:class:`~transformers.PreTrainedTokenizer` or :class:`~transformers.PreTrainedTokenizerFast`):
The tokenizer used for encoding the data.
noise_density (:obj:`float`):
The probability with which to (randomly) mask tokens in the input.
mean_noise_span_length (:obj:`float`):
The average span length of the masked tokens.
input_length (:obj:`int`):
The expected input length after masking.
target_length (:obj:`int`):
The expected target length after masking.
pad_token_id: (:obj:`int`):
The pad token id of the model
decoder_start_token_id: (:obj:`int):
The decoder start token id of the model
"""
tokenizer: PreTrainedTokenizerBase
noise_density: float
mean_noise_span_length: float
input_length: int
target_length: int
pad_token_id: int
decoder_start_token_id: int
def __call__(self, examples: List[Dict[str, np.ndarray]]) -> BatchEncoding:
# convert list to dict and tensorize input
batch = BatchEncoding(
{k: np.array([examples[i][k] for i in range(len(examples))]) for k, v in examples[0].items()}
)
input_ids = batch["input_ids"]
batch_size, expandend_input_length = input_ids.shape
mask_indices = np.asarray([self.random_spans_noise_mask(expandend_input_length) for i in range(batch_size)])
labels_mask = ~mask_indices
input_ids_sentinel = self.create_sentinel_ids(mask_indices.astype(np.int8))
labels_sentinel = self.create_sentinel_ids(labels_mask.astype(np.int8))
batch["input_ids"] = self.filter_input_ids(input_ids, input_ids_sentinel)
batch["labels"] = self.filter_input_ids(input_ids, labels_sentinel)
if batch["input_ids"].shape[-1] != self.input_length:
raise ValueError(
f"`input_ids` are incorrectly preprocessed. `input_ids` length is {batch['input_ids'].shape[-1]}, but"
f" should be {self.input_length}."
)
if batch["labels"].shape[-1] != self.target_length:
raise ValueError(
f"`labels` are incorrectly preprocessed. `labels` length is {batch['labels'].shape[-1]}, but should be"
f" {self.target_length}."
)
# to check that tokens are correctly preprocessed, one can run `self.tokenizer.batch_decode(input_ids)` and `self.tokenizer.batch_decode(labels)` here...
batch["decoder_input_ids"] = shift_tokens_right(
batch["labels"], self.pad_token_id, self.decoder_start_token_id
)
return batch
def create_sentinel_ids(self, mask_indices):
"""
Sentinel ids creation given the indices that should be masked.
The start indices of each mask are replaced by the sentinel ids in increasing
order. Consecutive mask indices to be deleted are replaced with `-1`.
"""
start_indices = mask_indices - np.roll(mask_indices, 1, axis=-1) * mask_indices
start_indices[:, 0] = mask_indices[:, 0]
sentinel_ids = np.where(start_indices != 0, np.cumsum(start_indices, axis=-1), start_indices)
sentinel_ids = np.where(sentinel_ids != 0, (len(self.tokenizer) - sentinel_ids), 0)
sentinel_ids -= mask_indices - start_indices
return sentinel_ids
def filter_input_ids(self, input_ids, sentinel_ids):
"""
Puts sentinel mask on `input_ids` and fuse consecutive mask tokens into a single mask token by deleting.
This will reduce the sequence length from `expanded_inputs_length` to `input_length`.
"""
batch_size = input_ids.shape[0]
input_ids_full = np.where(sentinel_ids != 0, sentinel_ids, input_ids)
# input_ids tokens and sentinel tokens are >= 0, tokens < 0 are
# masked tokens coming after sentinel tokens and should be removed
input_ids = input_ids_full[input_ids_full >= 0].reshape((batch_size, -1))
input_ids = np.concatenate(
[input_ids, np.full((batch_size, 1), self.tokenizer.eos_token_id, dtype=np.int32)], axis=-1
)
return input_ids
def random_spans_noise_mask(self, length):
"""This function is copy of `random_spans_helper <https://github.com/google-research/text-to-text-transfer-transformer/blob/84f8bcc14b5f2c03de51bd3587609ba8f6bbd1cd/t5/data/preprocessors.py#L2682>`__ .
Noise mask consisting of random spans of noise tokens.
The number of noise tokens and the number of noise spans and non-noise spans
are determined deterministically as follows:
num_noise_tokens = round(length * noise_density)
num_nonnoise_spans = num_noise_spans = round(num_noise_tokens / mean_noise_span_length)
Spans alternate between non-noise and noise, beginning with non-noise.
Subject to the above restrictions, all masks are equally likely.
Args:
length: an int32 scalar (length of the incoming token sequence)
noise_density: a float - approximate density of output mask
mean_noise_span_length: a number
Returns:
a boolean tensor with shape [length]
"""
orig_length = length
num_noise_tokens = int(np.round(length * self.noise_density))
num_nonnoise_tokens = length - num_noise_tokens
# avoid degeneracy by ensuring positive numbers of noise and nonnoise tokens.
num_noise_tokens = min(max(num_noise_tokens, 1), length - 1)
# num_noise_tokens should be less than num_noise_tokens and num_nonnoise_tokens
num_noise_spans = int(np.round(min(num_noise_tokens, num_nonnoise_tokens) / self.mean_noise_span_length))
# avoid degeneracy by ensuring positive number of noise spans
num_noise_spans = max(num_noise_spans, 1)
# pick the lengths of the noise spans and the non-noise spans
def _random_segmentation(num_items, num_segments):
"""Partition a sequence of items randomly into non-empty segments.
Args:
num_items: an integer scalar > 0
num_segments: an integer scalar in [1, num_items]
Returns:
a Tensor with shape [num_segments] containing positive integers that add
up to num_items
"""
mask_indices = np.arange(num_items - 1) < (num_segments - 1)
np.random.shuffle(mask_indices)
first_in_segment = np.pad(mask_indices, [[1, 0]])
segment_id = np.cumsum(first_in_segment)
# count length of sub segments assuming that list is sorted
_, segment_length = np.unique(segment_id, return_counts=True)
return segment_length
noise_span_lengths = _random_segmentation(num_noise_tokens, num_noise_spans)
nonnoise_span_lengths = _random_segmentation(num_nonnoise_tokens, num_noise_spans)
interleaved_span_lengths = np.reshape(
np.stack([nonnoise_span_lengths, noise_span_lengths], axis=1), [num_noise_spans * 2]
)
span_starts = np.cumsum(interleaved_span_lengths)[:-1]
span_start_indicator = np.zeros((length,), dtype=np.int8)
span_start_indicator[span_starts] = True
span_num = np.cumsum(span_start_indicator)
is_noise = np.equal(span_num % 2, 1)
return is_noise[:orig_length]
def generate_batch_splits(samples_idx: np.ndarray, batch_size: int, drop_last=True) -> np.ndarray:
"""Generate batches of data for a specified batch size from sample indices. If the dataset size is not divisible by
the batch size and `drop_last` is `True`, the last incomplete batch is dropped. Else, it is returned."""
num_samples = len(samples_idx)
if drop_last:
samples_to_remove = num_samples % batch_size
if samples_to_remove != 0:
samples_idx = samples_idx[:-samples_to_remove]
sections_split = num_samples // batch_size
samples_idx = samples_idx.reshape((sections_split, batch_size))
else:
sections_split = math.ceil(num_samples / batch_size)
samples_idx = np.array_split(samples_idx, sections_split)
return samples_idx
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_t5_mlm", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Setup logging
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
level=logging.INFO,
datefmt="[%X]",
)
# Log on each process the small summary:
logger = logging.getLogger(__name__)
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Set seed before initializing model.
set_seed(training_args.seed)
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if extension == "txt":
extension = "text"
datasets = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
if "validation" not in datasets.keys():
datasets["validation"] = load_dataset(
extension,
data_files=data_files,
split=f"train[:{data_args.validation_split_percentage}%]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
datasets["train"] = load_dataset(
extension,
data_files=data_files,
split=f"train[{data_args.validation_split_percentage}%:]",
cache_dir=model_args.cache_dir,
token=model_args.token,
num_proc=data_args.preprocessing_num_workers,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
if model_args.config_name:
config = T5Config.from_pretrained(
model_args.config_name,
cache_dir=model_args.cache_dir,
vocab_size=len(tokenizer),
token=model_args.token,
)
elif model_args.model_name_or_path:
config = T5Config.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
# Preprocessing the datasets.
# First we tokenize all the texts.
if training_args.do_train:
column_names = datasets["train"].column_names
else:
column_names = datasets["validation"].column_names
text_column_name = "text" if "text" in column_names else column_names[0]
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
# Otherwise, we tokenize every text, then concatenate them together before splitting them in smaller parts.
# Since we make sure that all sequences are of the same length, no attention_mask is needed.
def tokenize_function(examples):
return tokenizer(examples[text_column_name], return_attention_mask=False)
tokenized_datasets = datasets.map(
tokenize_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
# T5-like span masked language modeling will fuse consecutively masked tokens to a single sentinel token.
# To ensure that the input length is `max_seq_length`, we need to increase the maximum length
# according to `mlm_probability` and `mean_noise_span_length`. We can also define the label length accordingly.
expanded_inputs_length, targets_length = compute_input_and_target_lengths(
inputs_length=max_seq_length,
noise_density=data_args.mlm_probability,
mean_noise_span_length=data_args.mean_noise_span_length,
)
# Main data processing function that will concatenate all texts from our dataset and generate chunks of expanded_inputs_length.
def group_texts(examples):
# Concatenate all texts.
concatenated_examples = {k: list(chain(*examples[k])) for k in examples.keys()}
total_length = len(concatenated_examples[list(examples.keys())[0]])
# We drop the small remainder, we could add padding if the model supported it instead of this drop, you can
# customize this part to your needs.
if total_length >= expanded_inputs_length:
total_length = (total_length // expanded_inputs_length) * expanded_inputs_length
# Split by chunks of max_len.
result = {
k: [t[i : i + expanded_inputs_length] for i in range(0, total_length, expanded_inputs_length)]
for k, t in concatenated_examples.items()
}
return result
# Note that with `batched=True`, this map processes 1,000 texts together, so group_texts throws away a
# remainder for each of those groups of 1,000 texts. You can adjust that batch_size here but a higher value
# might be slower to preprocess.
#
# To speed up this part, we use multiprocessing. See the documentation of the map method for more information:
# https://huggingface.co/docs/datasets/process#map
tokenized_datasets = tokenized_datasets.map(
group_texts,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
)
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
if model_args.model_name_or_path:
model = FlaxT5ForConditionalGeneration.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
)
else:
config.vocab_size = len(tokenizer)
model = FlaxT5ForConditionalGeneration(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
)
# Data collator
# This one will take care of randomly masking the tokens.
data_collator = FlaxDataCollatorForT5MLM(
tokenizer=tokenizer,
noise_density=data_args.mlm_probability,
mean_noise_span_length=data_args.mean_noise_span_length,
input_length=max_seq_length,
target_length=targets_length,
pad_token_id=model.config.pad_token_id,
decoder_start_token_id=model.config.decoder_start_token_id,
)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
num_train_steps = len(tokenized_datasets["train"]) // train_batch_size * num_epochs
num_of_hosts = jax.process_count()
current_host_idx = jax.process_index()
# Create learning rate schedule
warmup_fn = optax.linear_schedule(
init_value=0.0, end_value=training_args.learning_rate, transition_steps=training_args.warmup_steps
)
decay_fn = optax.linear_schedule(
init_value=training_args.learning_rate,
end_value=0,
transition_steps=num_train_steps - training_args.warmup_steps,
)
linear_decay_lr_schedule_fn = optax.join_schedules(
schedules=[warmup_fn, decay_fn], boundaries=[training_args.warmup_steps]
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
if training_args.adafactor:
# We use the default parameters here to initialize adafactor,
# For more details about the parameters please check https://github.com/deepmind/optax/blob/ed02befef9bf81cbbf236be3d2b0e032e9ed4a40/optax/_src/alias.py#L74
optimizer = optax.adafactor(
learning_rate=linear_decay_lr_schedule_fn,
)
else:
optimizer = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = train_state.TrainState.create(apply_fn=model.__call__, params=model.params, tx=optimizer)
# Define gradient update step fn
def train_step(state, batch, dropout_rng):
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
def loss_fn(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
# compute loss
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1])).mean()
return loss
grad_fn = jax.value_and_grad(loss_fn)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad)
metrics = jax.lax.pmean(
{"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}, axis_name="batch"
)
return new_state, metrics, new_dropout_rng
# Create parallel version of the train step
p_train_step = jax.pmap(train_step, "batch", donate_argnums=(0,))
# Define eval fn
def eval_step(params, batch):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
# compute loss
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1]))
# compute accuracy
accuracy = jnp.equal(jnp.argmax(logits, axis=-1), labels)
# summarize metrics
metrics = {"loss": loss.mean(), "accuracy": accuracy.mean()}
metrics = jax.lax.pmean(metrics, axis_name="batch")
return metrics
p_eval_step = jax.pmap(eval_step, "batch", donate_argnums=(0,))
# Replicate the train state on each device
state = jax_utils.replicate(state)
train_time = 0
epochs = tqdm(range(num_epochs), desc="Epoch ... ", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# Generate an epoch by shuffling sampling indices from the train dataset
num_train_samples = len(tokenized_datasets["train"])
# Avoid using jax.numpy here in case of TPU training
train_samples_idx = np.random.permutation(np.arange(num_train_samples))
train_batch_idx = generate_batch_splits(train_samples_idx, train_batch_size)
# Gather the indexes for creating the batch and do a training step
for step, batch_idx in enumerate(tqdm(train_batch_idx, desc="Training...", position=1)):
samples = [tokenized_datasets["train"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
local_host_model_inputs = {
key: np.split(model_inputs.data[key], num_of_hosts, axis=0)[current_host_idx]
for key, value in model_inputs.data.items()
}
# Model forward
model_inputs = shard(local_host_model_inputs)
state, train_metric, dropout_rngs = p_train_step(state, model_inputs, dropout_rngs)
train_metrics.append(train_metric)
cur_step = epoch * (num_train_samples // train_batch_size) + step
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = jax_utils.unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step} | Loss: {train_metric['loss'].mean()}, Learning Rate:"
f" {train_metric['learning_rate'].mean()})"
)
train_metrics = []
if cur_step % training_args.eval_steps == 0 and cur_step > 0:
# ======================== Evaluating ==============================
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size, drop_last=False)
eval_metrics = []
for i, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# get eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.mean, eval_metrics)
# Update progress bar
epochs.write(f"Step... ({cur_step} | Loss: {eval_metrics['loss']}, Acc: {eval_metrics['accuracy']})")
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if cur_step % training_args.save_steps == 0 and cur_step > 0:
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
# Eval after training
if training_args.do_eval:
num_eval_samples = len(tokenized_datasets["validation"])
# Avoid using jax.numpy here in case of TPU training
eval_samples_idx = np.arange(num_eval_samples)
eval_batch_idx = generate_batch_splits(eval_samples_idx, eval_batch_size, drop_last=False)
eval_metrics = []
for i, batch_idx in enumerate(tqdm(eval_batch_idx, desc="Evaluating ...", position=2)):
samples = [tokenized_datasets["validation"][int(idx)] for idx in batch_idx]
model_inputs = data_collator(samples)
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, model_inputs.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# get eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(lambda metric: jnp.mean(metric).item(), eval_metrics)
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/language-modeling/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Language model training examples
The following example showcases how to train a language model from scratch
using the JAX/Flax backend.
JAX/Flax allows you to trace pure functions and compile them into efficient, fused accelerator code on both GPU and TPU.
Models written in JAX/Flax are **immutable** and updated in a purely functional
way which enables simple and efficient model parallelism.
## Masked language modeling
In the following, we demonstrate how to train a bi-directional transformer model
using masked language modeling objective as introduced in [BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding](https://arxiv.org/abs/1810.04805).
More specifically, we demonstrate how JAX/Flax can be leveraged
to pre-train [**`FacebookAI/roberta-base`**](https://huggingface.co/FacebookAI/roberta-base)
in Norwegian on a single TPUv3-8 pod.
The example script uses the 🤗 Datasets library. You can easily customize them to your needs if you need extra processing on your datasets.
To setup all relevant files for training, let's create a directory.
```bash
mkdir ./norwegian-roberta-base
```
### Train tokenizer
In the first step, we train a tokenizer to efficiently process the text input for the model. Similar to how it is shown in [How to train a new language model from scratch using Transformers and Tokenizers](https://huggingface.co/blog/how-to-train), we use a **`ByteLevelBPETokenizer`**.
The tokenizer is trained on the complete Norwegian dataset of OSCAR
and consequently saved in the cloned model directory.
This can take up to 10 minutes depending on your hardware ☕.
```python
from datasets import load_dataset
from tokenizers import trainers, Tokenizer, normalizers, ByteLevelBPETokenizer
# load dataset
dataset = load_dataset("oscar", "unshuffled_deduplicated_no", split="train")
# Instantiate tokenizer
tokenizer = ByteLevelBPETokenizer()
def batch_iterator(batch_size=1000):
for i in range(0, len(dataset), batch_size):
yield dataset[i: i + batch_size]["text"]
# Customized training
tokenizer.train_from_iterator(batch_iterator(), vocab_size=50265, min_frequency=2, special_tokens=[
"<s>",
"<pad>",
"</s>",
"<unk>",
"<mask>",
])
# Save files to disk
tokenizer.save("./norwegian-roberta-base/tokenizer.json")
```
### Create configuration
Next, we create the model's configuration file. This is as simple
as loading and storing [`**FacebookAI/roberta-base**`](https://huggingface.co/FacebookAI/roberta-base)
in the local model folder:
```python
from transformers import RobertaConfig
config = RobertaConfig.from_pretrained("FacebookAI/roberta-base", vocab_size=50265)
config.save_pretrained("./norwegian-roberta-base")
```
Great, we have set up our model repository. During training, we will automatically
push the training logs and model weights to the repo.
### Train model
Next we can run the example script to pretrain the model:
```bash
python run_mlm_flax.py \
--output_dir="./norwegian-roberta-base" \
--model_type="roberta" \
--config_name="./norwegian-roberta-base" \
--tokenizer_name="./norwegian-roberta-base" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--max_seq_length="128" \
--weight_decay="0.01" \
--per_device_train_batch_size="128" \
--per_device_eval_batch_size="128" \
--learning_rate="3e-4" \
--warmup_steps="1000" \
--overwrite_output_dir \
--num_train_epochs="18" \
--adam_beta1="0.9" \
--adam_beta2="0.98" \
--logging_steps="500" \
--save_steps="2500" \
--eval_steps="2500" \
--push_to_hub
```
Training should converge at a loss and accuracy
of 1.78 and 0.64 respectively after 18 epochs on a single TPUv3-8.
This should take less than 18 hours.
Training statistics can be accessed on [tfhub.dev](https://tensorboard.dev/experiment/GdYmdak2TWeVz0DDRYOrrg).
For a step-by-step walkthrough of how to do masked language modeling in Flax, please have a
look at [this](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/masked_language_modeling_flax.ipynb) google colab.
## Causal language modeling
In the following, we demonstrate how to train an auto-regressive causal transformer model
in JAX/Flax.
More specifically, we pretrain a randomly initialized [**`openai-community/gpt2`**](https://huggingface.co/openai-community/gpt2) model in Norwegian on a single TPUv3-8.
to pre-train 124M [**`openai-community/gpt2`**](https://huggingface.co/openai-community/gpt2)
in Norwegian on a single TPUv3-8 pod.
The example script uses the 🤗 Datasets library. You can easily customize them to your needs if you need extra processing on your datasets.
To setup all relevant files for training, let's create a directory.
```bash
mkdir ./norwegian-gpt2
```
### Train tokenizer
In the first step, we train a tokenizer to efficiently process the text input for the model. Similar to how it is shown in [How to train a new language model from scratch using Transformers and Tokenizers](https://huggingface.co/blog/how-to-train), we use a **`ByteLevelBPETokenizer`**.
The tokenizer is trained on the complete Norwegian dataset of OSCAR
and consequently saved in the cloned model directory.
This can take up to 10 minutes depending on your hardware ☕.
```python
from datasets import load_dataset
from tokenizers import trainers, Tokenizer, normalizers, ByteLevelBPETokenizer
# load dataset
dataset = load_dataset("oscar", "unshuffled_deduplicated_no", split="train")
# Instantiate tokenizer
tokenizer = ByteLevelBPETokenizer()
def batch_iterator(batch_size=1000):
for i in range(0, len(dataset), batch_size):
yield dataset[i: i + batch_size]["text"]
# Customized training
tokenizer.train_from_iterator(batch_iterator(), vocab_size=50257, min_frequency=2, special_tokens=[
"<s>",
"<pad>",
"</s>",
"<unk>",
"<mask>",
])
# Save files to disk
tokenizer.save("./norwegian-gpt2/tokenizer.json")
```
### Create configuration
Next, we create the model's configuration file. This is as simple
as loading and storing [`**openai-community/gpt2**`](https://huggingface.co/openai-community/gpt2)
in the local model folder:
```python
from transformers import GPT2Config
config = GPT2Config.from_pretrained("openai-community/gpt2", resid_pdrop=0.0, embd_pdrop=0.0, attn_pdrop=0.0, vocab_size=50257)
config.save_pretrained("./norwegian-gpt2")
```
Great, we have set up our model repository. During training, we will now automatically
push the training logs and model weights to the repo.
### Train model
Finally, we can run the example script to pretrain the model:
```bash
python run_clm_flax.py \
--output_dir="./norwegian-gpt2" \
--model_type="gpt2" \
--config_name="./norwegian-gpt2" \
--tokenizer_name="./norwegian-gpt2" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--do_train --do_eval \
--block_size="512" \
--per_device_train_batch_size="64" \
--per_device_eval_batch_size="64" \
--learning_rate="5e-3" --warmup_steps="1000" \
--adam_beta1="0.9" --adam_beta2="0.98" --weight_decay="0.01" \
--overwrite_output_dir \
--num_train_epochs="20" \
--logging_steps="500" \
--save_steps="2500" \
--eval_steps="2500" \
--push_to_hub
```
Training should converge at a loss and perplexity
of 3.24 and 25.72 respectively after 20 epochs on a single TPUv3-8.
This should take less than ~21 hours.
Training statistics can be accessed on [tfhub.de](https://tensorboard.dev/experiment/2zEhLwJ0Qp2FAkI3WVH9qA).
For a step-by-step walkthrough of how to do causal language modeling in Flax, please have a
look at [this](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/causal_language_modeling_flax.ipynb) google colab.
## T5-like span-masked language modeling
In the following, we demonstrate how to train a T5 model using the span-masked language model
objective as proposed in the [Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer](https://arxiv.org/abs/1910.10683).
More specifically, we demonstrate how JAX/Flax can be leveraged
to pre-train [**`google/t5-v1_1-base`**](https://huggingface.co/google/t5-v1_1-base)
in Norwegian on a single TPUv3-8 pod.
The example script uses the 🤗 Datasets library. You can easily customize them to your needs if you need extra processing on your datasets.
Let's start by creating a model repository to save the trained model and logs.
Here we call the model `"norwegian-t5-base"`, but you can change the model name as you like.
To setup all relevant files for training, let's create a directory.
```bash
cd ./norwegian-t5-base
```
### Train tokenizer
In the first step, we train a tokenizer to efficiently process the text input for the model.
We make use of the [tokenizers](https://github.com/huggingface/tokenizers) library to train
a sentencepiece unigram tokenizer as shown in [t5_tokenizer_model.py](https://github.com/huggingface/transformers/tree/main/examples/flax/language-modeling/t5_tokenizer_model.py)
which is heavily inspired from [yandex-research/DeDLOC's tokenizer model](https://github.com/yandex-research/DeDLOC/blob/5c994bc64e573702a9a79add3ecd68b38f14b548/sahajbert/tokenizer/tokenizer_model.py) .
The tokenizer is trained on the complete Norwegian dataset of OSCAR
and consequently saved in the cloned model directory.
This can take up to 120 minutes depending on your hardware ☕☕☕ .
```python
import datasets
from t5_tokenizer_model import SentencePieceUnigramTokenizer
vocab_size = 32_000
input_sentence_size = None
# Initialize a dataset
dataset = datasets.load_dataset("oscar", name="unshuffled_deduplicated_no", split="train")
tokenizer = SentencePieceUnigramTokenizer(unk_token="<unk>", eos_token="</s>", pad_token="<pad>")
# Build an iterator over this dataset
def batch_iterator(input_sentence_size=None):
if input_sentence_size is None:
input_sentence_size = len(dataset)
batch_length = 100
for i in range(0, input_sentence_size, batch_length):
yield dataset[i: i + batch_length]["text"]
# Train tokenizer
tokenizer.train_from_iterator(
iterator=batch_iterator(input_sentence_size=input_sentence_size),
vocab_size=vocab_size,
show_progress=True,
)
# Save files to disk
tokenizer.save("./norwegian-t5-base/tokenizer.json")
```
### Create configuration
Next, we create the model's configuration file. This is as simple
as loading and storing [`**google/t5-v1_1-base**`](https://huggingface.co/google/t5-v1_1-base)
in the local model folder:
```python
from transformers import T5Config
config = T5Config.from_pretrained("google/t5-v1_1-base", vocab_size=tokenizer.get_vocab_size())
config.save_pretrained("./norwegian-t5-base")
```
Great, we have set up our model repository. During training, we will automatically
push the training logs and model weights to the repo.
### Train model
Next we can run the example script to pretrain the model:
```bash
python run_t5_mlm_flax.py \
--output_dir="./norwegian-t5-base" \
--model_type="t5" \
--config_name="./norwegian-t5-base" \
--tokenizer_name="./norwegian-t5-base" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--max_seq_length="512" \
--per_device_train_batch_size="32" \
--per_device_eval_batch_size="32" \
--adafactor \
--learning_rate="0.005" \
--weight_decay="0.001" \
--warmup_steps="2000" \
--overwrite_output_dir \
--logging_steps="500" \
--save_steps="10000" \
--eval_steps="2500" \
--push_to_hub
```
Training should converge at a loss and accuracy
of 2.36 and 57.0 respectively after 3 epochs on a single TPUv3-8.
This should take around 4.5 hours.
Training statistics can be accessed on directly on the 🤗 [hub](https://huggingface.co/patrickvonplaten/t5-base-norwegian/tensorboard)
## BART: Denoising language modeling
In the following, we demonstrate how to train a BART model
using denoising language modeling objective as introduced in [BART: Denoising Sequence-to-Sequence Pre-training for Natural Language Generation, Translation, and Comprehension](https://arxiv.org/abs/1910.13461).
More specifically, we demonstrate how JAX/Flax can be leveraged
to pre-train [**`bart-base`**](https://huggingface.co/facebook/bart-base)
in Norwegian on a single TPUv3-8 pod.
The example script uses the 🤗 Datasets library. You can easily customize them to your needs if you need extra processing on your datasets.
To setup all relevant files for training, let's create a directory.
```bash
mkdir ./norwegian-bart-base
```
### Train tokenizer
In the first step, we train a tokenizer to efficiently process the text input for the model. Similar to how it is shown in [How to train a new language model from scratch using Transformers and Tokenizers](https://huggingface.co/blog/how-to-train), we use a **`ByteLevelBPETokenizer`**.
The tokenizer is trained on the complete Norwegian dataset of OSCAR
and consequently saved in the cloned model directory.
This can take up to 10 minutes depending on your hardware ☕.
```python
from datasets import load_dataset
from tokenizers import trainers, Tokenizer, normalizers, ByteLevelBPETokenizer
# load dataset
dataset = load_dataset("oscar", "unshuffled_deduplicated_no", split="train")
# Instantiate tokenizer
tokenizer = ByteLevelBPETokenizer()
def batch_iterator(batch_size=1000):
for i in range(0, len(dataset), batch_size):
yield dataset[i: i + batch_size]["text"]
# Customized training
tokenizer.train_from_iterator(batch_iterator(), vocab_size=50265, min_frequency=2, special_tokens=[
"<s>",
"<pad>",
"</s>",
"<unk>",
"<mask>",
])
# Save files to disk
tokenizer.save("./norwegian-bart-base/tokenizer.json")
```
### Create configuration
Next, we create the model's configuration file. This is as simple
as loading and storing [`**facebook/bart-base**`](https://huggingface.co/facebook/bart-base)
in the local model folder:
```python
from transformers import BartConfig
config = BartConfig.from_pretrained("facebook/bart-base", vocab_size=50265)
config.save_pretrained("./norwegian-bart-base")
```
Great, we have set up our model repository. During training, we will automatically
push the training logs and model weights to the repo.
### Train model
Next we can run the example script to pretrain the model:
```bash
python run_bart_dlm_flax.py \
--output_dir="./norwegian-bart-base" \
--config_name="./norwegian-bart-base" \
--tokenizer_name="./norwegian-bart-base" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--max_seq_length="1024" \
--per_device_train_batch_size="32" \
--per_device_eval_batch_size="32" \
--learning_rate="1e-4" \
--warmup_steps="2000" \
--overwrite_output_dir \
--logging_steps="500" \
--save_steps="2000" \
--eval_steps="2000" \
--push_to_hub
```
Training should converge at a loss and accuracy
of 1.36 and 0.77 respectively after 3 epochs on a single TPUv3-8.
This should take less than 6 hours.
Training statistics can be accessed on [tfhub.dev](https://tensorboard.dev/experiment/Maw62QlaSXWS0MOf2V2lbg/).
## Runtime evaluation
We also ran masked language modeling using PyTorch/XLA on a TPUv3-8, and PyTorch on 8 V100 GPUs. We report the
overall training time below.
For reproducibility, we state the training commands used for PyTorch/XLA and PyTorch further below.
| Task | [TPU v3-8 (Flax)](https://tensorboard.dev/experiment/GdYmdak2TWeVz0DDRYOrrg/) | [TPU v3-8 (Pytorch/XLA)](https://tensorboard.dev/experiment/7Jq1kcQQRAmy12KOdXek7A/)| [8 GPU (PyTorch)](https://tensorboard.dev/experiment/PJneV8FQRxa2unPw1QnVHA) |
|-------|-----------|------------|------------|
| MLM | 15h32m | 23h46m | 44h14m |
*All experiments are ran on Google Cloud Platform.
GPU experiments are ran without further optimizations besides JAX
transformations. GPU experiments are ran with full precision (fp32). "TPU v3-8"
are 8 TPU cores on 4 chips (each chips has 2 cores), while "8 GPU" are 8 GPU chips.
### Script to run MLM with PyTorch/XLA on TPUv3-8
For comparison one can run the same pre-training with PyTorch/XLA on TPU. To set up PyTorch/XLA on Cloud TPU VMs, please
refer to [this](https://cloud.google.com/tpu/docs/pytorch-xla-ug-tpu-vm) guide.
Having created the tokenizer and configuration in `norwegian-roberta-base`, we create the following symbolic links:
```bash
ln -s ~/transformers/examples/pytorch/language-modeling/run_mlm.py ./
ln -s ~/transformers/examples/pytorch/xla_spawn.py ./
```
, set the following environment variables:
```bash
export XRT_TPU_CONFIG="localservice;0;localhost:51011"
unset LD_PRELOAD
export NUM_TPUS=8
export TOKENIZERS_PARALLELISM=0
export MODEL_DIR="./norwegian-roberta-base"
mkdir -p ${MODEL_DIR}
```
, and start training as follows:
```bash
python3 xla_spawn.py --num_cores ${NUM_TPUS} run_mlm.py --output_dir="./runs" \
--model_type="roberta" \
--config_name="${MODEL_DIR}" \
--tokenizer_name="${MODEL_DIR}" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--max_seq_length="128" \
--weight_decay="0.01" \
--per_device_train_batch_size="128" \
--per_device_eval_batch_size="128" \
--learning_rate="3e-4" \
--warmup_steps="1000" \
--overwrite_output_dir \
--num_train_epochs="18" \
--adam_beta1="0.9" \
--adam_beta2="0.98" \
--do_train \
--do_eval \
--logging_steps="500" \
--eval_strategy="epoch" \
--report_to="tensorboard" \
--save_strategy="no"
```
### Script to compare pre-training with PyTorch on 8 GPU V100's
For comparison you can run the same pre-training with PyTorch on GPU. Note that we have to make use of `gradient_accumulation`
because the maximum batch size that fits on a single V100 GPU is 32 instead of 128.
Having created the tokenizer and configuration in `norwegian-roberta-base`, we create the following symbolic links:
```bash
ln -s ~/transformers/examples/pytorch/language-modeling/run_mlm.py ./
```
, set some environment variables:
```bash
export NUM_GPUS=8
export TOKENIZERS_PARALLELISM=0
export MODEL_DIR="./norwegian-roberta-base"
mkdir -p ${MODEL_DIR}
```
, and can start training as follows:
```bash
python3 -m torch.distributed.launch --nproc_per_node ${NUM_GPUS} run_mlm.py \
--output_dir="${MODEL_DIR}" \
--model_type="roberta" \
--config_name="${MODEL_DIR}" \
--tokenizer_name="${MODEL_DIR}" \
--dataset_name="oscar" \
--dataset_config_name="unshuffled_deduplicated_no" \
--max_seq_length="128" \
--weight_decay="0.01" \
--per_device_train_batch_size="32" \
--per_device_eval_batch_size="32" \
--gradient_accumulation="4" \
--learning_rate="3e-4" \
--warmup_steps="1000" \
--overwrite_output_dir \
--num_train_epochs="18" \
--adam_beta1="0.9" \
--adam_beta2="0.98" \
--do_train \
--do_eval \
--logging_steps="500" \
--eval_strategy="steps" \
--report_to="tensorboard" \
--save_strategy="no"
```
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/token-classification/requirements.txt | datasets >= 1.8.0
jax>=0.2.8
jaxlib>=0.1.59
flax>=0.3.5
optax>=0.0.8
seqeval | 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/token-classification/run_flax_ner.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Fine-tuning a 🤗 Flax Transformers model on token classification tasks (NER, POS, CHUNKS)"""
import json
import logging
import math
import os
import random
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from itertools import chain
from pathlib import Path
from typing import Any, Callable, Dict, Optional, Tuple
import datasets
import evaluate
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import ClassLabel, load_dataset
from flax import struct, traverse_util
from flax.jax_utils import pad_shard_unpad, replicate, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
import transformers
from transformers import (
AutoConfig,
AutoTokenizer,
FlaxAutoModelForTokenClassification,
HfArgumentParser,
is_tensorboard_available,
)
from transformers.utils import check_min_version, send_example_telemetry
from transformers.utils.versions import require_version
logger = logging.getLogger(__name__)
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
require_version("datasets>=1.8.0", "To fix: pip install -r examples/pytorch/token-classification/requirements.txt")
Array = Any
Dataset = datasets.arrow_dataset.Dataset
PRNGKey = Any
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Where do you want to store the pretrained models downloaded from huggingface.co"},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
task_name: Optional[str] = field(default="ner", metadata={"help": "The name of the task (ner, pos...)."})
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(
default=None, metadata={"help": "The input training data file (a csv or JSON file)."}
)
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate on (a csv or JSON file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input test data file to predict on (a csv or JSON file)."},
)
text_column_name: Optional[str] = field(
default=None, metadata={"help": "The column name of text to input in the file (a csv or JSON file)."}
)
label_column_name: Optional[str] = field(
default=None, metadata={"help": "The column name of label to input in the file (a csv or JSON file)."}
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_seq_length: int = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization. If set, sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
label_all_tokens: bool = field(
default=False,
metadata={
"help": (
"Whether to put the label for one word on all tokens of generated by that word or just on the "
"one (in which case the other tokens will have a padding index)."
)
},
)
return_entity_level_metrics: bool = field(
default=False,
metadata={"help": "Whether to return all the entity levels during evaluation or just the overall ones."},
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
self.task_name = self.task_name.lower()
def create_train_state(
model: FlaxAutoModelForTokenClassification,
learning_rate_fn: Callable[[int], float],
num_labels: int,
training_args: TrainingArguments,
) -> train_state.TrainState:
"""Create initial training state."""
class TrainState(train_state.TrainState):
"""Train state with an Optax optimizer.
The two functions below differ depending on whether the task is classification
or regression.
Args:
logits_fn: Applied to last layer to obtain the logits.
loss_fn: Function to compute the loss.
"""
logits_fn: Callable = struct.field(pytree_node=False)
loss_fn: Callable = struct.field(pytree_node=False)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
tx = optax.adamw(
learning_rate=learning_rate_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
def cross_entropy_loss(logits, labels):
xentropy = optax.softmax_cross_entropy(logits, onehot(labels, num_classes=num_labels))
return jnp.mean(xentropy)
return TrainState.create(
apply_fn=model.__call__,
params=model.params,
tx=tx,
logits_fn=lambda logits: logits.argmax(-1),
loss_fn=cross_entropy_loss,
)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def train_data_collator(rng: PRNGKey, dataset: Dataset, batch_size: int):
"""Returns shuffled batches of size `batch_size` from truncated `train dataset`, sharded over all local devices."""
steps_per_epoch = len(dataset) // batch_size
perms = jax.random.permutation(rng, len(dataset))
perms = perms[: steps_per_epoch * batch_size] # Skip incomplete batch.
perms = perms.reshape((steps_per_epoch, batch_size))
for perm in perms:
batch = dataset[perm]
batch = {k: np.array(v) for k, v in batch.items()}
batch = shard(batch)
yield batch
def eval_data_collator(dataset: Dataset, batch_size: int):
"""Returns batches of size `batch_size` from `eval dataset`. Sharding handled by `pad_shard_unpad` in the eval loop."""
batch_idx = np.arange(len(dataset))
steps_per_epoch = math.ceil(len(dataset) / batch_size)
batch_idx = np.array_split(batch_idx, steps_per_epoch)
for idx in batch_idx:
batch = dataset[idx]
batch = {k: np.array(v) for k, v in batch.items()}
yield batch
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_ner", model_args, data_args, framework="flax")
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets for token classification task available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'tokens' or the first column if no column called
# 'tokens' is found. You can easily tweak this behavior (see below).
#
# In distributed training, the load_dataset function guarantee that only one local process can concurrently
# download the dataset.
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
raw_datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
# Loading the dataset from local csv or json file.
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = (data_args.train_file if data_args.train_file is not None else data_args.valid_file).split(".")[-1]
raw_datasets = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset at
# https://huggingface.co/docs/datasets/loading_datasets.
if raw_datasets["train"] is not None:
column_names = raw_datasets["train"].column_names
features = raw_datasets["train"].features
else:
column_names = raw_datasets["validation"].column_names
features = raw_datasets["validation"].features
if data_args.text_column_name is not None:
text_column_name = data_args.text_column_name
elif "tokens" in column_names:
text_column_name = "tokens"
else:
text_column_name = column_names[0]
if data_args.label_column_name is not None:
label_column_name = data_args.label_column_name
elif f"{data_args.task_name}_tags" in column_names:
label_column_name = f"{data_args.task_name}_tags"
else:
label_column_name = column_names[1]
# In the event the labels are not a `Sequence[ClassLabel]`, we will need to go through the dataset to get the
# unique labels.
def get_label_list(labels):
unique_labels = set()
for label in labels:
unique_labels = unique_labels | set(label)
label_list = list(unique_labels)
label_list.sort()
return label_list
if isinstance(features[label_column_name].feature, ClassLabel):
label_list = features[label_column_name].feature.names
# No need to convert the labels since they are already ints.
label_to_id = {i: i for i in range(len(label_list))}
else:
label_list = get_label_list(raw_datasets["train"][label_column_name])
label_to_id = {l: i for i, l in enumerate(label_list)}
num_labels = len(label_list)
# Load pretrained model and tokenizer
config = AutoConfig.from_pretrained(
model_args.config_name if model_args.config_name else model_args.model_name_or_path,
num_labels=num_labels,
label2id=label_to_id,
id2label={i: l for l, i in label_to_id.items()},
finetuning_task=data_args.task_name,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer_name_or_path = model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path
if config.model_type in {"gpt2", "roberta"}:
tokenizer = AutoTokenizer.from_pretrained(
tokenizer_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
add_prefix_space=True,
)
else:
tokenizer = AutoTokenizer.from_pretrained(
tokenizer_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
model = FlaxAutoModelForTokenClassification.from_pretrained(
model_args.model_name_or_path,
config=config,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
# Preprocessing the datasets
# Tokenize all texts and align the labels with them.
def tokenize_and_align_labels(examples):
tokenized_inputs = tokenizer(
examples[text_column_name],
max_length=data_args.max_seq_length,
padding="max_length",
truncation=True,
# We use this argument because the texts in our dataset are lists of words (with a label for each word).
is_split_into_words=True,
)
labels = []
for i, label in enumerate(examples[label_column_name]):
word_ids = tokenized_inputs.word_ids(batch_index=i)
previous_word_idx = None
label_ids = []
for word_idx in word_ids:
# Special tokens have a word id that is None. We set the label to -100 so they are automatically
# ignored in the loss function.
if word_idx is None:
label_ids.append(-100)
# We set the label for the first token of each word.
elif word_idx != previous_word_idx:
label_ids.append(label_to_id[label[word_idx]])
# For the other tokens in a word, we set the label to either the current label or -100, depending on
# the label_all_tokens flag.
else:
label_ids.append(label_to_id[label[word_idx]] if data_args.label_all_tokens else -100)
previous_word_idx = word_idx
labels.append(label_ids)
tokenized_inputs["labels"] = labels
return tokenized_inputs
processed_raw_datasets = raw_datasets.map(
tokenize_and_align_labels,
batched=True,
num_proc=data_args.preprocessing_num_workers,
load_from_cache_file=not data_args.overwrite_cache,
remove_columns=raw_datasets["train"].column_names,
desc="Running tokenizer on dataset",
)
train_dataset = processed_raw_datasets["train"]
eval_dataset = processed_raw_datasets["validation"]
# Log a few random samples from the training set:
for index in random.sample(range(len(train_dataset)), 3):
logger.info(f"Sample {index} of the training set: {train_dataset[index]}.")
# Define a summary writer
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(training_args.output_dir)
summary_writer.hparams({**training_args.to_dict(), **vars(model_args), **vars(data_args)})
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
num_epochs = int(training_args.num_train_epochs)
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
train_batch_size = training_args.per_device_train_batch_size * jax.local_device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = training_args.per_device_eval_batch_size * jax.local_device_count()
learning_rate_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
state = create_train_state(model, learning_rate_fn, num_labels=num_labels, training_args=training_args)
# define step functions
def train_step(
state: train_state.TrainState, batch: Dict[str, Array], dropout_rng: PRNGKey
) -> Tuple[train_state.TrainState, float]:
"""Trains model with an optimizer (both in `state`) on `batch`, returning a pair `(new_state, loss)`."""
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
targets = batch.pop("labels")
def loss_fn(params):
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss = state.loss_fn(logits, targets)
return loss
grad_fn = jax.value_and_grad(loss_fn)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad)
metrics = jax.lax.pmean({"loss": loss, "learning_rate": learning_rate_fn(state.step)}, axis_name="batch")
return new_state, metrics, new_dropout_rng
p_train_step = jax.pmap(train_step, axis_name="batch", donate_argnums=(0,))
def eval_step(state, batch):
logits = state.apply_fn(**batch, params=state.params, train=False)[0]
return state.logits_fn(logits)
p_eval_step = jax.pmap(eval_step, axis_name="batch")
metric = evaluate.load("seqeval", cache_dir=model_args.cache_dir)
def get_labels(y_pred, y_true):
# Transform predictions and references tensos to numpy arrays
# Remove ignored index (special tokens)
true_predictions = [
[label_list[p] for (p, l) in zip(pred, gold_label) if l != -100]
for pred, gold_label in zip(y_pred, y_true)
]
true_labels = [
[label_list[l] for (p, l) in zip(pred, gold_label) if l != -100]
for pred, gold_label in zip(y_pred, y_true)
]
return true_predictions, true_labels
def compute_metrics():
results = metric.compute()
if data_args.return_entity_level_metrics:
# Unpack nested dictionaries
final_results = {}
for key, value in results.items():
if isinstance(value, dict):
for n, v in value.items():
final_results[f"{key}_{n}"] = v
else:
final_results[key] = value
return final_results
else:
return {
"precision": results["overall_precision"],
"recall": results["overall_recall"],
"f1": results["overall_f1"],
"accuracy": results["overall_accuracy"],
}
logger.info(f"===== Starting training ({num_epochs} epochs) =====")
train_time = 0
# make sure weights are replicated on each device
state = replicate(state)
train_time = 0
step_per_epoch = len(train_dataset) // train_batch_size
total_steps = step_per_epoch * num_epochs
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# train
for step, batch in enumerate(
tqdm(
train_data_collator(input_rng, train_dataset, train_batch_size),
total=step_per_epoch,
desc="Training...",
position=1,
)
):
state, train_metric, dropout_rngs = p_train_step(state, batch, dropout_rngs)
train_metrics.append(train_metric)
cur_step = (epoch * step_per_epoch) + (step + 1)
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step}/{total_steps} | Training Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
train_metrics = []
if cur_step % training_args.eval_steps == 0 and cur_step > 0:
eval_metrics = {}
# evaluate
for batch in tqdm(
eval_data_collator(eval_dataset, eval_batch_size),
total=math.ceil(len(eval_dataset) / eval_batch_size),
desc="Evaluating ...",
position=2,
):
labels = batch.pop("labels")
predictions = pad_shard_unpad(p_eval_step)(
state, batch, min_device_batch=per_device_eval_batch_size
)
predictions = np.array(predictions)
labels[np.array(chain(*batch["attention_mask"])) == 0] = -100
preds, refs = get_labels(predictions, labels)
metric.add_batch(
predictions=preds,
references=refs,
)
eval_metrics = compute_metrics()
if data_args.return_entity_level_metrics:
logger.info(f"Step... ({cur_step}/{total_steps} | Validation metrics: {eval_metrics}")
else:
logger.info(
f"Step... ({cur_step}/{total_steps} | Validation f1: {eval_metrics['f1']}, Validation Acc:"
f" {eval_metrics['accuracy']})"
)
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if (cur_step % training_args.save_steps == 0 and cur_step > 0) or (cur_step == total_steps):
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(unreplicate(state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
epochs.desc = f"Epoch ... {epoch + 1}/{num_epochs}"
# Eval after training
if training_args.do_eval:
eval_metrics = {}
eval_loader = eval_data_collator(eval_dataset, eval_batch_size)
for batch in tqdm(eval_loader, total=len(eval_dataset) // eval_batch_size, desc="Evaluating ...", position=2):
labels = batch.pop("labels")
predictions = pad_shard_unpad(p_eval_step)(state, batch, min_device_batch=per_device_eval_batch_size)
predictions = np.array(predictions)
labels[np.array(chain(*batch["attention_mask"])) == 0] = -100
preds, refs = get_labels(predictions, labels)
metric.add_batch(predictions=preds, references=refs)
eval_metrics = compute_metrics()
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/token-classification/README.md | <!---
Copyright 2021 The Google Flax Team Authors and HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Token classification examples
Fine-tuning the library models for token classification task such as Named Entity Recognition (NER), Parts-of-speech tagging (POS) or phrase extraction (CHUNKS). The main script run_flax_ner.py leverages the 🤗 Datasets library. You can easily customize it to your needs if you need extra processing on your datasets.
It will either run on a datasets hosted on our hub or with your own text files for training and validation, you might just need to add some tweaks in the data preprocessing.
The following example fine-tunes BERT on CoNLL-2003:
```bash
python run_flax_ner.py \
--model_name_or_path google-bert/bert-base-cased \
--dataset_name conll2003 \
--max_seq_length 128 \
--learning_rate 2e-5 \
--num_train_epochs 3 \
--per_device_train_batch_size 4 \
--output_dir ./bert-ner-conll2003 \
--eval_steps 300 \
--push_to_hub
```
Using the command above, the script will train for 3 epochs and run eval after each epoch.
Metrics and hyperparameters are stored in Tensorflow event files in `--output_dir`.
You can see the results by running `tensorboard` in that directory:
```bash
$ tensorboard --logdir .
```
or directly on the hub under *Training metrics*.
sample Metrics - [tfhub.dev](https://tensorboard.dev/experiment/u52qsBIpQSKEEXEJd2LVYA) | 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/speech-recognition/requirements.txt | datasets[audio]>=2.14.0
jax>=0.3.6
jaxlib>=0.3.6
flax>=0.4.1
optax>=0.0.8
torch>=1.9.0
jiwer
evaluate
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/speech-recognition/run_flax_speech_recognition_seq2seq.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the Flax library models for sequence to sequence speech recognition.
"""
# You can also adapt this script on your own sequence to sequence task. Pointers for this are left as comments.
import logging
import os
import sys
import time
from dataclasses import field
from functools import partial
from pathlib import Path
from typing import Any, Callable, Dict, List, Optional, Union
import datasets
import evaluate
import flax
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import DatasetDict, load_dataset
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
from huggingface_hub import HfApi
from torch.utils.data import DataLoader
from tqdm import tqdm
import transformers
from transformers import (
AutoConfig,
AutoFeatureExtractor,
AutoProcessor,
AutoTokenizer,
FlaxAutoModelForSpeechSeq2Seq,
HfArgumentParser,
Seq2SeqTrainingArguments,
is_tensorboard_available,
)
from transformers.file_utils import get_full_repo_name
from transformers.utils import check_min_version, send_example_telemetry
from transformers.utils.versions import require_version
# Will error if the minimal version of Transformers is not installed. Remove at your own risk.
check_min_version("4.41.0.dev0")
require_version("datasets>=2.14.0", "To fix: pip install -r examples/flax/speech-recognition/requirements.txt")
logger = logging.getLogger(__name__)
@flax.struct.dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
feature_extractor_name: Optional[str] = field(
default=None, metadata={"help": "feature extractor name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Where to store the pretrained models downloaded from huggingface.co"},
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
use_auth_token: bool = field(
default=False,
metadata={
"help": "Will use the token generated when running `transformers-cli login` (necessary to use this script "
"with private models)."
},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
num_beams: Optional[int] = field(
default=None,
metadata={
"help": (
"Number of beams to use for evaluation. This argument will be passed to `model.generate`, "
"which is used during evaluation."
)
},
)
@flax.struct.dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: str = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
text_column: Optional[str] = field(
default=None,
metadata={"help": "The name of the column in the datasets containing the full texts (for summarization)."},
)
dataset_cache_dir: Optional[str] = field(
default=None, metadata={"help": "Path to cache directory for saving and loading datasets"}
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": "For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": "For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
},
)
audio_column_name: str = field(
default="audio",
metadata={"help": "The name of the dataset column containing the audio data. Defaults to 'audio'"},
)
text_column_name: str = field(
default="text",
metadata={"help": "The name of the dataset column containing the text data. Defaults to 'text'"},
)
max_duration_in_seconds: float = field(
default=20.0,
metadata={"help": "Filter audio files that are longer than `max_duration_in_seconds` seconds"},
)
min_duration_in_seconds: float = field(
default=0.0,
metadata={"help": "Filter audio files that are shorter than `min_duration_in_seconds` seconds"},
)
max_label_length: float = field(
default=128,
metadata={"help": "Truncate transcriptions that are longer `max_eval_length` tokens."},
)
pad_input_to_multiple_of: Optional[int] = field(
default=None,
metadata={
"help": "If set will pad the input sequence to a multiple of the provided value. "
"This is important to avoid triggering recompilations on TPU. If unspecified, will default to padding the inputs to max length."
},
)
pad_target_to_multiple_of: Optional[int] = field(
default=None,
metadata={
"help": "If set will pad the target sequence to a multiple of the provided value. "
"This is important to avoid triggering recompilations on TPU. If unspecified, will default to padding the targets to max length."
},
)
preprocessing_only: bool = field(
default=False,
metadata={
"help": "Whether to only do data preprocessing and skip training. "
"This is especially useful when data preprocessing errors out in distributed training due to timeout. "
"In this case, one should run the preprocessing in a non-distributed setup with `preprocessing_only=True` "
"so that the cached datasets can consequently be loaded in distributed training"
},
)
train_split_name: str = field(
default="train",
metadata={
"help": "The name of the training data set split to use (via the datasets library). Defaults to 'train'"
},
)
eval_split_name: str = field(
default="validation",
metadata={
"help": "The name of the evaluation data set split to use (via the datasets library). Defaults to 'validation'"
},
)
do_lower_case: bool = field(
default=True,
metadata={"help": "Whether the target text should be lower cased."},
)
language: str = field(
default=None,
metadata={
"help": (
"Language for multilingual fine-tuning. This argument should be set for multilingual fine-tuning "
"only. For English speech recognition, it should be set to `None`."
)
},
)
task: str = field(
default="transcribe",
metadata={"help": "Task, either `transcribe` for speech recognition or `translate` for speech translation."},
)
def shift_tokens_right(label_ids: np.array, decoder_start_token_id: int) -> np.ndarray:
"""
Shift label ids one token to the right.
"""
shifted_label_ids = np.zeros_like(label_ids)
shifted_label_ids[:, 1:] = label_ids[:, :-1]
shifted_label_ids[:, 0] = decoder_start_token_id
return shifted_label_ids
@flax.struct.dataclass
class FlaxDataCollatorSpeechSeq2SeqWithPadding:
"""
Data collator that will dynamically pad the inputs received.
Args:
processor ([`Wav2Vec2Processor`])
The processor used for proccessing the data.
decoder_start_token_id (:obj: `int`)
The begin-of-sentence of the decoder.
input_padding (:obj:`bool`, :obj:`str` or :class:`~transformers.tokenization_utils_base.PaddingStrategy`, `optional`, defaults to :obj:`True`):
Select a strategy to pad the returned input sequences (according to the model's padding side and padding index)
among:
* :obj:`True` or :obj:`'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).
* :obj:`'max_length'`: Pad to a maximum length specified with the argument :obj:`max_length` or to the
maximum acceptable input length for the model if that argument is not provided.
* :obj:`False` or :obj:`'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of
different lengths).
target_padding (:obj:`bool`, :obj:`str` or :class:`~transformers.tokenization_utils_base.PaddingStrategy`, `optional`, defaults to :obj:`True`):
Select a strategy to pad the returned target sequences (according to the model's padding side and padding index).
See above for details.
max_input_length (:obj:`float`, `optional`):
Maximum length of the ``input_values`` of the returned list and optionally padding length (see above).
max_target_length (:obj:`int`, `optional`):
Maximum length of the ``labels`` of the returned list and optionally padding length (see above).
pad_input_to_multiple_of (:obj:`int`, `optional`):
If set will pad the input sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability >=
7.5 (Volta).
pad_target_to_multiple_of (:obj:`int`, `optional`):
If set will pad the target sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability >=
7.5 (Volta).
"""
processor: Any
decoder_start_token_id: int
input_padding: Union[bool, str] = "longest"
target_padding: Union[bool, str] = "max_length"
max_input_length: Optional[float] = None
max_target_length: Optional[int] = None
pad_input_to_multiple_of: Optional[int] = None
pad_target_to_multiple_of: Optional[int] = None
def __call__(self, features: List[Dict[str, Union[List[int], np.ndarray]]]) -> Dict[str, np.ndarray]:
# split inputs and labels since they have to be of different lengths and need
# different padding methods
model_input_name = self.processor.model_input_names[0]
# dataloader returns a list of features which we convert to a dict
input_features = {model_input_name: [feature[model_input_name] for feature in features]}
label_features = {"input_ids": [feature["labels"] for feature in features]}
# reformat list to dict and set to pytorch format
batch = self.processor.feature_extractor.pad(
input_features,
max_length=self.max_input_length,
padding=self.input_padding,
pad_to_multiple_of=self.pad_input_to_multiple_of,
return_tensors="np",
)
labels_batch = self.processor.tokenizer.pad(
label_features,
max_length=self.max_target_length,
padding=self.target_padding,
pad_to_multiple_of=self.pad_target_to_multiple_of,
return_tensors="np",
)
# if bos token is appended in previous tokenization step,
# cut bos token here as it's append later anyways
labels = labels_batch["input_ids"]
if (labels[:, 0] == self.decoder_start_token_id).all().item():
labels = labels[:, 1:]
labels_batch.attention_mask = labels_batch.attention_mask[:, 1:]
decoder_input_ids = shift_tokens_right(labels, self.decoder_start_token_id)
# replace padding with -100 to ignore correctly when computing the loss
labels = np.ma.array(labels, mask=np.not_equal(labels_batch.attention_mask, 1))
labels = labels.filled(fill_value=-100)
batch["labels"] = labels
batch["decoder_input_ids"] = decoder_input_ids
return batch
class TrainState(train_state.TrainState):
dropout_rng: jnp.ndarray
def replicate(self):
return jax_utils.replicate(self).replace(dropout_rng=shard_prng_key(self.dropout_rng))
def write_metric(summary_writer, train_metrics, eval_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def create_learning_rate_fn(
num_train_steps: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def main():
# 1. Parse input arguments
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, Seq2SeqTrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your JAX/Flax versions.
send_example_telemetry("run_speech_recognition_seq2seq", model_args, data_args, framework="flax")
# 2. Setup logging
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
handlers=[logging.StreamHandler(sys.stdout)],
)
# Set the verbosity to info of the Transformers logger.
# We only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
logger.info("Training/evaluation parameters %s", training_args)
# Check the output dir is valid
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use `--overwrite_output_dir` to overcome."
)
# Handle the repository creation
if training_args.push_to_hub:
if training_args.hub_model_id is None:
repo_name = get_full_repo_name(
Path(training_args.output_dir).absolute().name, token=training_args.hub_token
)
else:
repo_name = training_args.hub_model_id
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# 3. Load dataset
raw_datasets = DatasetDict()
if training_args.do_train:
raw_datasets["train"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=data_args.train_split_name,
cache_dir=data_args.dataset_cache_dir,
num_proc=data_args.preprocessing_num_workers,
token=True if model_args.use_auth_token else None,
)
if training_args.do_eval:
raw_datasets["eval"] = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
split=data_args.eval_split_name,
cache_dir=data_args.dataset_cache_dir,
num_proc=data_args.preprocessing_num_workers,
token=True if model_args.use_auth_token else None,
)
if not training_args.do_train and not training_args.do_eval:
raise ValueError(
"Cannot not train and not do evaluation. At least one of training or evaluation has to be performed."
)
if data_args.audio_column_name not in next(iter(raw_datasets.values())).column_names:
raise ValueError(
f"--audio_column_name '{data_args.audio_column_name}' not found in dataset '{data_args.dataset_name}'. "
"Make sure to set `--audio_column_name` to the correct audio column - one of "
f"{', '.join(next(iter(raw_datasets.values())).column_names)}."
)
if data_args.text_column_name not in next(iter(raw_datasets.values())).column_names:
raise ValueError(
f"--text_column_name {data_args.text_column_name} not found in dataset '{data_args.dataset_name}'. "
"Make sure to set `--text_column_name` to the correct text column - one of "
f"{', '.join(next(iter(raw_datasets.values())).column_names)}."
)
# 5. Load pretrained model, tokenizer, and feature extractor
config = AutoConfig.from_pretrained(
model_args.config_name if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=True if model_args.use_auth_token else None,
)
feature_extractor = AutoFeatureExtractor.from_pretrained(
model_args.feature_extractor_name if model_args.feature_extractor_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=True if model_args.use_auth_token else None,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
revision=model_args.model_revision,
token=True if model_args.use_auth_token else None,
)
model = FlaxAutoModelForSpeechSeq2Seq.from_pretrained(
model_args.model_name_or_path,
config=config,
dtype=getattr(jnp, model_args.dtype),
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=True if model_args.use_auth_token else None,
)
if model.config.decoder_start_token_id is None:
raise ValueError("Make sure that `config.decoder_start_token_id` is correctly defined")
# 6. Resample speech dataset: `datasets` takes care of automatically loading and resampling the audio,
# so we just need to set the correct target sampling rate.
raw_datasets = raw_datasets.cast_column(
data_args.audio_column_name, datasets.features.Audio(sampling_rate=feature_extractor.sampling_rate)
)
# 7. Preprocessing the datasets.
# We need to read the audio files as arrays and tokenize the targets.
max_input_length = int(data_args.max_duration_in_seconds * feature_extractor.sampling_rate)
min_input_length = int(data_args.min_duration_in_seconds * feature_extractor.sampling_rate)
max_label_length = (
data_args.max_label_length if data_args.max_label_length is not None else model.config.max_length
)
pad_input_to_multiple_of = data_args.pad_input_to_multiple_of
pad_target_to_multiple_of = data_args.pad_target_to_multiple_of
audio_column_name = data_args.audio_column_name
num_workers = data_args.preprocessing_num_workers
text_column_name = data_args.text_column_name
model_input_name = feature_extractor.model_input_names[0]
do_lower_case = data_args.do_lower_case
if training_args.do_train and data_args.max_train_samples is not None:
raw_datasets["train"] = raw_datasets["train"].select(range(data_args.max_train_samples))
if training_args.do_eval and data_args.max_eval_samples is not None:
raw_datasets["eval"] = raw_datasets["eval"].select(range(data_args.max_eval_samples))
if data_args.language is not None:
# We only need to set the task id when the language is specified (i.e. in a multilingual setting)
tokenizer.set_prefix_tokens(language=data_args.language, task=data_args.task)
def prepare_dataset(batch):
# process audio
sample = batch[audio_column_name]
inputs = feature_extractor(sample["array"], sampling_rate=sample["sampling_rate"])
# process audio length
batch[model_input_name] = inputs.get(model_input_name)[0]
batch["input_length"] = len(sample["array"])
# process targets
input_str = batch[text_column_name].lower() if do_lower_case else batch[text_column_name]
batch["labels"] = tokenizer(input_str).input_ids
return batch
vectorized_datasets = raw_datasets.map(
prepare_dataset,
remove_columns=next(iter(raw_datasets.values())).column_names,
num_proc=num_workers,
desc="preprocess train and eval dataset",
)
# filter training data with inputs longer than max_input_length
def is_audio_in_length_range(length):
return min_input_length < length < max_input_length
vectorized_datasets = vectorized_datasets.filter(
is_audio_in_length_range,
num_proc=num_workers,
input_columns=["input_length"],
)
# for large datasets it is advised to run the preprocessing on a
# single machine first with `args.preprocessing_only` since there will mostly likely
# be a timeout when running the script in distributed mode.
# In a second step `args.preprocessing_only` can then be set to `False` to load the
# cached dataset
if data_args.preprocessing_only:
cache = {k: v.cache_files for k, v in vectorized_datasets.items()}
logger.info(f"Data preprocessing finished. Files cached at {cache}.")
return
# 8. Load Metric
metric = evaluate.load("wer", cache_dir=model_args.cache_dir)
def compute_metrics(preds, labels):
# replace padded labels by the padding token
for idx in range(len(labels)):
labels[idx][labels[idx] == -100] = tokenizer.pad_token_id
pred_str = tokenizer.batch_decode(preds, skip_special_tokens=True)
# we do not want to group tokens when computing the metrics
label_str = tokenizer.batch_decode(labels, skip_special_tokens=True)
wer = metric.compute(predictions=pred_str, references=label_str)
return {"wer": wer}
# 9. Save feature extractor, tokenizer and config
feature_extractor.save_pretrained(training_args.output_dir)
tokenizer.save_pretrained(training_args.output_dir)
config.save_pretrained(training_args.output_dir)
processor = AutoProcessor.from_pretrained(training_args.output_dir)
data_collator = FlaxDataCollatorSpeechSeq2SeqWithPadding(
processor=processor,
decoder_start_token_id=model.config.decoder_start_token_id,
input_padding="longest",
target_padding="longest",
max_target_length=max_label_length,
pad_input_to_multiple_of=pad_input_to_multiple_of,
pad_target_to_multiple_of=pad_target_to_multiple_of if pad_target_to_multiple_of else max_label_length,
)
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
rng, dropout_rng = jax.random.split(rng)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
steps_per_epoch = len(vectorized_datasets["train"]) // train_batch_size
total_train_steps = steps_per_epoch * num_epochs
# Create learning rate schedule
linear_decay_lr_schedule_fn = create_learning_rate_fn(
total_train_steps,
training_args.warmup_steps,
training_args.learning_rate,
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layer_norm", "self_attn_layer_norm", "final_layer_norm", "encoder_attn_layer_norm"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
adamw = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = TrainState.create(apply_fn=model.__call__, params=model.params, tx=adamw, dropout_rng=dropout_rng)
# label smoothed cross entropy
def loss_fn(logits, labels, label_smoothing_factor=0.0):
"""
The label smoothing implementation is adapted from Flax's official example:
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
"""
vocab_size = logits.shape[-1]
confidence = 1.0 - label_smoothing_factor
low_confidence = (1.0 - confidence) / (vocab_size - 1)
normalizing_constant = -(
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
)
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
loss = optax.softmax_cross_entropy(logits, soft_labels)
loss = loss - normalizing_constant
# ignore padded tokens from loss, i.e. where labels are not set to -100
padding_mask = labels >= 0
loss = loss * padding_mask
loss = loss.sum()
num_labels = padding_mask.sum()
return loss, num_labels
# Define gradient update step fn
def train_step(state, batch, label_smoothing_factor=0.0):
dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
def compute_loss(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss, num_labels = loss_fn(logits, labels, label_smoothing_factor)
return loss, num_labels
grad_fn = jax.value_and_grad(compute_loss, has_aux=True)
(loss, num_labels), grad = grad_fn(state.params)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
# true grad = total grad / total samples
grad = jax.lax.psum(grad, "batch")
grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
new_state = state.apply_gradients(grads=grad, dropout_rng=new_dropout_rng)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
return new_state, metrics
# Define eval fn
def eval_step(params, batch, label_smoothing_factor=0.0):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
loss, num_labels = loss_fn(logits, labels, label_smoothing_factor)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
metrics = {"loss": loss}
return metrics
# Define generation function
num_beams = model_args.num_beams if model_args.num_beams is not None else model.config.num_beams
gen_kwargs = {"max_length": max_label_length, "num_beams": num_beams}
def generate_step(params, batch):
model.params = params
output_ids = model.generate(batch[model_input_name], attention_mask=batch.get("attention_mask"), **gen_kwargs)
return output_ids.sequences
# Create parallel version of the train and eval step
p_train_step = jax.pmap(
partial(train_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch", donate_argnums=(0,)
)
p_eval_step = jax.pmap(partial(eval_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch")
p_generate_step = jax.pmap(generate_step, "batch")
# Replicate the train state on each device
state = state.replicate()
logger.info("***** Running training *****")
logger.info(f" Num examples = {len(vectorized_datasets['train'])}")
logger.info(f" Num Epochs = {num_epochs}")
logger.info(f" Instantaneous batch size per device = {training_args.per_device_train_batch_size}")
logger.info(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
logger.info(f" Total optimization steps = {total_train_steps}")
train_time = 0
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
train_metrics = []
# Generate an epoch by shuffling sampling indices from the train dataset and create a data loader
vectorized_datasets["train"] = vectorized_datasets["train"].shuffle(training_args.seed)
train_loader = DataLoader(
vectorized_datasets["train"],
batch_size=train_batch_size,
drop_last=True,
collate_fn=data_collator,
num_workers=training_args.dataloader_num_workers,
)
# train
for batch in tqdm(train_loader, desc="Training...", position=1, leave=False):
batch = shard(batch.data)
state, train_metric = p_train_step(state, batch)
train_metrics.append(train_metric)
train_time += time.time() - train_start
train_metric = unreplicate(train_metric)
epochs.write(
f"Epoch... ({epoch + 1}/{num_epochs} | Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
# ======================== Evaluating ==============================
eval_metrics = []
eval_preds = []
eval_labels = []
eval_loader = DataLoader(
vectorized_datasets["eval"],
batch_size=eval_batch_size,
drop_last=False,
collate_fn=data_collator,
num_workers=training_args.dataloader_num_workers,
)
for batch in tqdm(eval_loader, desc="Evaluating...", position=2, leave=False):
# Model forward
labels = batch["labels"]
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch.data, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# generation
if training_args.predict_with_generate:
generated_ids = pad_shard_unpad(p_generate_step)(state.params, batch.data)
eval_preds.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
eval_labels.extend(labels)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.mean, eval_metrics)
# compute WER metric
wer_desc = ""
if training_args.predict_with_generate:
wer_metric = compute_metrics(eval_preds, eval_labels)
eval_metrics.update(wer_metric)
wer_desc = " ".join([f"Eval {key}: {value} |" for key, value in wer_metric.items()])
# Print metrics and update progress bar
desc = f"Epoch... ({epoch + 1}/{num_epochs} | Eval Loss: {eval_metrics['loss']} | {wer_desc})"
epochs.write(desc)
epochs.desc = desc
# Save metrics
if has_tensorboard and jax.process_index() == 0:
cur_step = epoch * (len(vectorized_datasets["train"]) // train_batch_size)
write_metric(summary_writer, train_metrics, eval_metrics, train_time, cur_step)
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of epoch {epoch}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/speech-recognition/README.md | <!---
Copyright 2023 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Automatic Speech Recognition - Flax Examples
## Sequence to Sequence
The script [`run_flax_speech_recognition_seq2seq.py`](https://github.com/huggingface/transformers/blob/main/examples/flax/speech-recognition/run_flax_speech_recognition_seq2seq.py)
can be used to fine-tune any [Flax Speech Sequence-to-Sequence Model](https://huggingface.co/docs/transformers/main/en/model_doc/auto#transformers.FlaxAutoModelForSpeechSeq2Seq)
for automatic speech recognition on one of the [official speech recognition datasets](https://huggingface.co/datasets?task_ids=task_ids:automatic-speech-recognition)
or a custom dataset. This includes the Whisper model from OpenAI, or a warm-started Speech-Encoder-Decoder Model,
an example for which is included below.
### Whisper Model
We can load all components of the Whisper model directly from the pretrained checkpoint, including the pretrained model
weights, feature extractor and tokenizer. We simply have to specify the id of fine-tuning dataset and the necessary
training hyperparameters.
The following example shows how to fine-tune the [Whisper small](https://huggingface.co/openai/whisper-small) checkpoint
on the Hindi subset of the [Common Voice 13](https://huggingface.co/datasets/mozilla-foundation/common_voice_13_0) dataset.
Note that before running this script you must accept the dataset's [terms of use](https://huggingface.co/datasets/mozilla-foundation/common_voice_13_0)
and register your Hugging Face Hub token on your device by running `huggingface-hub login`.
```bash
python run_flax_speech_recognition_seq2seq.py \
--model_name_or_path="openai/whisper-small" \
--dataset_name="mozilla-foundation/common_voice_13_0" \
--dataset_config_name="hi" \
--language="hindi" \
--train_split_name="train+validation" \
--eval_split_name="test" \
--output_dir="./whisper-small-hi-flax" \
--per_device_train_batch_size="16" \
--per_device_eval_batch_size="16" \
--num_train_epochs="10" \
--learning_rate="1e-4" \
--warmup_steps="500" \
--logging_steps="25" \
--generation_max_length="40" \
--preprocessing_num_workers="32" \
--dataloader_num_workers="32" \
--max_duration_in_seconds="30" \
--text_column_name="sentence" \
--overwrite_output_dir \
--do_train \
--do_eval \
--predict_with_generate \
--push_to_hub \
--use_auth_token
```
On a TPU v4-8, training should take approximately 25 minutes, with a final cross-entropy loss of 0.02 and word error
rate of **34%**. See the checkpoint [sanchit-gandhi/whisper-small-hi-flax](https://huggingface.co/sanchit-gandhi/whisper-small-hi-flax)
for an example training run.
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/summarization/run_summarization_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library models for summarization.
"""
# You can also adapt this script on your own sequence to sequence task. Pointers for this are left as comments.
import json
import logging
import math
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from functools import partial
from pathlib import Path
from typing import Callable, Optional
import datasets
import evaluate
import jax
import jax.numpy as jnp
import nltk # Here to have a nice missing dependency error message early on
import numpy as np
import optax
from datasets import Dataset, load_dataset
from filelock import FileLock
from flax import jax_utils, traverse_util
from flax.jax_utils import pad_shard_unpad, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
from huggingface_hub import HfApi
from tqdm import tqdm
import transformers
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
AutoConfig,
AutoTokenizer,
FlaxAutoModelForSeq2SeqLM,
HfArgumentParser,
is_tensorboard_available,
)
from transformers.utils import is_offline_mode, send_example_telemetry
logger = logging.getLogger(__name__)
try:
nltk.data.find("tokenizers/punkt")
except (LookupError, OSError):
if is_offline_mode():
raise LookupError(
"Offline mode: run this script without TRANSFORMERS_OFFLINE first to download nltk data files"
)
with FileLock(".lock") as lock:
nltk.download("punkt", quiet=True)
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
do_predict: bool = field(default=False, metadata={"help": "Whether to run predictions on the test set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
label_smoothing_factor: float = field(
default=0.0, metadata={"help": "The label smoothing epsilon to apply (zero means no label smoothing)."}
)
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
gradient_checkpointing: bool = field(
default=False,
metadata={
"help": "If True, use gradient checkpointing to save memory at the expense of slower backward pass."
},
)
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
text_column: Optional[str] = field(
default=None,
metadata={"help": "The name of the column in the datasets containing the full texts (for summarization)."},
)
summary_column: Optional[str] = field(
default=None,
metadata={"help": "The name of the column in the datasets containing the summaries (for summarization)."},
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input predict data file to do prediction on (a text file)."},
)
max_source_length: Optional[int] = field(
default=1024,
metadata={
"help": (
"The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
max_target_length: Optional[int] = field(
default=128,
metadata={
"help": (
"The maximum total sequence length for target text after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
val_max_target_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total sequence length for validation target text after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded. Will default to `max_target_length`. "
"This argument is also used to override the `max_length` param of `model.generate`, which is used "
"during evaluation."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
source_prefix: Optional[str] = field(
default=None, metadata={"help": "A prefix to add before every source text (useful for T5 models)."}
)
predict_with_generate: bool = field(
default=False, metadata={"help": "Whether to use generate to calculate generative metrics (ROUGE, BLEU)."}
)
num_beams: Optional[int] = field(
default=1,
metadata={
"help": (
"Number of beams to use for evaluation. This argument will be passed to `model.generate`, "
"which is used during evaluation."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
def __post_init__(self):
if (
self.dataset_name is None
and self.train_file is None
and self.validation_file is None
and self.test_file is None
):
raise ValueError("Need either a dataset name or a training, validation, or test file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
if self.test_file is not None:
extension = self.test_file.split(".")[-1]
assert extension in ["csv", "json"], "`test_file` should be a csv or a json file."
if self.val_max_target_length is None:
self.val_max_target_length = self.max_target_length
summarization_name_mapping = {
"amazon_reviews_multi": ("review_body", "review_title"),
"big_patent": ("description", "abstract"),
"cnn_dailymail": ("article", "highlights"),
"orange_sum": ("text", "summary"),
"pn_summary": ("article", "summary"),
"psc": ("extract_text", "summary_text"),
"samsum": ("dialogue", "summary"),
"thaisum": ("body", "summary"),
"xglue": ("news_body", "news_title"),
"xsum": ("document", "summary"),
"wiki_summary": ("article", "highlights"),
}
class TrainState(train_state.TrainState):
dropout_rng: jnp.ndarray
def replicate(self):
return jax_utils.replicate(self).replace(dropout_rng=shard_prng_key(self.dropout_rng))
def data_loader(rng: jax.random.PRNGKey, dataset: Dataset, batch_size: int, shuffle: bool = False, drop_last=True):
"""
Returns batches of size `batch_size` from `dataset`. If `drop_last` is set to `False`, the final batch may be incomplete,
and range in size from 1 to `batch_size`. Shuffle batches if `shuffle` is `True`.
"""
if shuffle:
batch_idx = jax.random.permutation(rng, len(dataset))
batch_idx = np.asarray(batch_idx)
else:
batch_idx = np.arange(len(dataset))
if drop_last:
steps_per_epoch = len(dataset) // batch_size
batch_idx = batch_idx[: steps_per_epoch * batch_size] # Skip incomplete batch.
batch_idx = batch_idx.reshape((steps_per_epoch, batch_size))
else:
steps_per_epoch = math.ceil(len(dataset) / batch_size)
batch_idx = np.array_split(batch_idx, steps_per_epoch)
for idx in batch_idx:
batch = dataset[idx]
batch = {k: np.array(v) for k, v in batch.items()}
yield batch
def write_metric(summary_writer, train_metrics, eval_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_summarization", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files this script will use the first column for the full texts and the second column for the
# summaries (unless you specify column names for this with the `text_column` and `summary_column` arguments).
#
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
dataset = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
keep_in_memory=False,
token=model_args.token,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if data_args.test_file is not None:
data_files["test"] = data_args.test_file
extension = data_args.test_file.split(".")[-1]
dataset = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
if model_args.config_name:
config = AutoConfig.from_pretrained(
model_args.config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
config = AutoConfig.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
if model_args.tokenizer_name:
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
raise ValueError(
"You are instantiating a new tokenizer from scratch. This is not supported by this script. "
"You can do it from another script, save it, and load it from here, using --tokenizer_name."
)
if model_args.model_name_or_path:
model = FlaxAutoModelForSeq2SeqLM.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
model = FlaxAutoModelForSeq2SeqLM.from_config(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
trust_remote_code=model_args.trust_remote_code,
)
if training_args.gradient_checkpointing:
model.enable_gradient_checkpointing()
if model.config.decoder_start_token_id is None:
raise ValueError("Make sure that `config.decoder_start_token_id` is correctly defined")
prefix = data_args.source_prefix if data_args.source_prefix is not None else ""
# Preprocessing the datasets.
# We need to tokenize inputs and targets.
if training_args.do_train:
if "train" not in dataset:
raise ValueError("--do_train requires a train dataset")
column_names = dataset["train"].column_names
elif training_args.do_eval:
if "validation" not in dataset:
raise ValueError("--do_eval requires a validation dataset")
column_names = dataset["validation"].column_names
elif training_args.do_predict:
if "test" not in dataset:
raise ValueError("--do_predict requires a test dataset")
column_names = dataset["test"].column_names
else:
logger.info("There is nothing to do. Please pass `do_train`, `do_eval` and/or `do_predict`.")
return
# Get the column names for input/target.
dataset_columns = summarization_name_mapping.get(data_args.dataset_name, None)
if data_args.text_column is None:
text_column = dataset_columns[0] if dataset_columns is not None else column_names[0]
else:
text_column = data_args.text_column
if text_column not in column_names:
raise ValueError(
f"--text_column' value '{data_args.text_column}' needs to be one of: {', '.join(column_names)}"
)
if data_args.summary_column is None:
summary_column = dataset_columns[1] if dataset_columns is not None else column_names[1]
else:
summary_column = data_args.summary_column
if summary_column not in column_names:
raise ValueError(
f"--summary_column' value '{data_args.summary_column}' needs to be one of: {', '.join(column_names)}"
)
# Temporarily set max_target_length for training.
max_target_length = data_args.max_target_length
# In Flax, for seq2seq models we need to pass `decoder_input_ids`
# as the Flax models don't accept `labels`, we need to prepare the decoder_input_ids here
# for that dynamically import the `shift_tokens_right` function from the model file
model_module = __import__(model.__module__, fromlist=["shift_tokens_tight"])
shift_tokens_right_fn = getattr(model_module, "shift_tokens_right")
# Setting padding="max_length" as we need fixed length inputs for jitted functions
def preprocess_function(examples):
inputs = examples[text_column]
targets = examples[summary_column]
inputs = [prefix + inp for inp in inputs]
model_inputs = tokenizer(
inputs, max_length=data_args.max_source_length, padding="max_length", truncation=True, return_tensors="np"
)
# Setup the tokenizer for targets
labels = tokenizer(
text_target=targets,
max_length=max_target_length,
padding="max_length",
truncation=True,
return_tensors="np",
)
model_inputs["labels"] = labels["input_ids"]
decoder_input_ids = shift_tokens_right_fn(
labels["input_ids"], config.pad_token_id, config.decoder_start_token_id
)
model_inputs["decoder_input_ids"] = np.asarray(decoder_input_ids)
# We need decoder_attention_mask so we can ignore pad tokens from loss
model_inputs["decoder_attention_mask"] = labels["attention_mask"]
return model_inputs
if training_args.do_train:
train_dataset = dataset["train"]
if data_args.max_train_samples is not None:
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
train_dataset = train_dataset.map(
preprocess_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
desc="Running tokenizer on train dataset",
)
if training_args.do_eval:
max_target_length = data_args.val_max_target_length
eval_dataset = dataset["validation"]
if data_args.max_eval_samples is not None:
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
eval_dataset = eval_dataset.map(
preprocess_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
desc="Running tokenizer on validation dataset",
)
if training_args.do_predict:
max_target_length = data_args.val_max_target_length
predict_dataset = dataset["test"]
if data_args.max_predict_samples is not None:
max_predict_samples = min(len(predict_dataset), data_args.max_predict_samples)
predict_dataset = predict_dataset.select(range(max_predict_samples))
predict_dataset = predict_dataset.map(
preprocess_function,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
desc="Running tokenizer on prediction dataset",
)
# Metric
metric = evaluate.load("rouge", cache_dir=model_args.cache_dir)
def postprocess_text(preds, labels):
preds = [pred.strip() for pred in preds]
labels = [label.strip() for label in labels]
# rougeLSum expects newline after each sentence
preds = ["\n".join(nltk.sent_tokenize(pred)) for pred in preds]
labels = ["\n".join(nltk.sent_tokenize(label)) for label in labels]
return preds, labels
def compute_metrics(preds, labels):
decoded_preds = tokenizer.batch_decode(preds, skip_special_tokens=True)
decoded_labels = tokenizer.batch_decode(labels, skip_special_tokens=True)
# Some simple post-processing
decoded_preds, decoded_labels = postprocess_text(decoded_preds, decoded_labels)
result = metric.compute(predictions=decoded_preds, references=decoded_labels, use_stemmer=True)
result = {k: round(v * 100, 4) for k, v in result.items()}
prediction_lens = [np.count_nonzero(pred != tokenizer.pad_token_id) for pred in preds]
result["gen_len"] = np.mean(prediction_lens)
return result
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
rng, dropout_rng = jax.random.split(rng)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
steps_per_epoch = len(train_dataset) // train_batch_size
total_train_steps = steps_per_epoch * num_epochs
# Create learning rate schedule
linear_decay_lr_schedule_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
adamw = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = TrainState.create(apply_fn=model.__call__, params=model.params, tx=adamw, dropout_rng=dropout_rng)
# label smoothed cross entropy
def loss_fn(logits, labels, padding_mask, label_smoothing_factor=0.0):
"""
The label smoothing implementation is adapted from Flax's official example:
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
"""
vocab_size = logits.shape[-1]
confidence = 1.0 - label_smoothing_factor
low_confidence = (1.0 - confidence) / (vocab_size - 1)
normalizing_constant = -(
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
)
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
loss = optax.softmax_cross_entropy(logits, soft_labels)
loss = loss - normalizing_constant
# ignore padded tokens from loss
loss = loss * padding_mask
loss = loss.sum()
num_labels = padding_mask.sum()
return loss, num_labels
# Define gradient update step fn
def train_step(state, batch, label_smoothing_factor=0.0):
dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
def compute_loss(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss, num_labels = loss_fn(logits, labels, batch["decoder_attention_mask"], label_smoothing_factor)
return loss, num_labels
grad_fn = jax.value_and_grad(compute_loss, has_aux=True)
(loss, num_labels), grad = grad_fn(state.params)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
# true grad = total grad / total samples
grad = jax.lax.psum(grad, "batch")
grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
new_state = state.apply_gradients(grads=grad, dropout_rng=new_dropout_rng)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
return new_state, metrics
# Define eval fn
def eval_step(params, batch, label_smoothing_factor=0.0):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
loss, num_labels = loss_fn(logits, labels, batch["decoder_attention_mask"], label_smoothing_factor)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
metrics = {"loss": loss}
return metrics
# Define generation function
max_length = (
data_args.val_max_target_length if data_args.val_max_target_length is not None else model.config.max_length
)
num_beams = data_args.num_beams if data_args.num_beams is not None else model.config.num_beams
gen_kwargs = {"max_length": max_length, "num_beams": num_beams}
def generate_step(params, batch):
model.params = params
output_ids = model.generate(batch["input_ids"], attention_mask=batch["attention_mask"], **gen_kwargs)
return output_ids.sequences
# Create parallel version of the train and eval step
p_train_step = jax.pmap(
partial(train_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch", donate_argnums=(0,)
)
p_eval_step = jax.pmap(partial(eval_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch")
p_generate_step = jax.pmap(generate_step, "batch")
# Replicate the train state on each device
state = state.replicate()
logger.info("***** Running training *****")
logger.info(f" Num examples = {len(train_dataset)}")
logger.info(f" Num Epochs = {num_epochs}")
logger.info(f" Instantaneous batch size per device = {training_args.per_device_train_batch_size}")
logger.info(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
logger.info(f" Total optimization steps = {total_train_steps}")
train_time = 0
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
# Create sampling rng
rng, input_rng = jax.random.split(rng)
train_metrics = []
# Generate an epoch by shuffling sampling indices from the train dataset
train_loader = data_loader(input_rng, train_dataset, train_batch_size, shuffle=True)
steps_per_epoch = len(train_dataset) // train_batch_size
# train
for _ in tqdm(range(steps_per_epoch), desc="Training...", position=1, leave=False):
batch = next(train_loader)
batch = shard(batch)
state, train_metric = p_train_step(state, batch)
train_metrics.append(train_metric)
train_time += time.time() - train_start
train_metric = unreplicate(train_metric)
epochs.write(
f"Epoch... ({epoch + 1}/{num_epochs} | Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
# ======================== Evaluating ==============================
eval_metrics = []
eval_preds = []
eval_labels = []
eval_loader = data_loader(input_rng, eval_dataset, eval_batch_size, drop_last=False)
eval_steps = math.ceil(len(eval_dataset) / eval_batch_size)
for _ in tqdm(range(eval_steps), desc="Evaluating...", position=2, leave=False):
# Model forward
batch = next(eval_loader)
labels = batch["labels"]
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
# generation
if data_args.predict_with_generate:
generated_ids = pad_shard_unpad(p_generate_step)(state.params, batch)
eval_preds.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
eval_labels.extend(labels)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.mean, eval_metrics)
# compute ROUGE metrics
rouge_desc = ""
if data_args.predict_with_generate:
rouge_metrics = compute_metrics(eval_preds, eval_labels)
eval_metrics.update(rouge_metrics)
rouge_desc = " ".join([f"Eval {key}: {value} |" for key, value in rouge_metrics.items()])
# Print metrics and update progress bar
desc = f"Epoch... ({epoch + 1}/{num_epochs} | Eval Loss: {eval_metrics['loss']} | {rouge_desc})"
epochs.write(desc)
epochs.desc = desc
# Save metrics
if has_tensorboard and jax.process_index() == 0:
cur_step = epoch * (len(train_dataset) // train_batch_size)
write_metric(summary_writer, train_metrics, eval_metrics, train_time, cur_step)
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of epoch {epoch}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
# ======================== Prediction loop ==============================
if training_args.do_predict:
logger.info("*** Predict ***")
pred_metrics = []
pred_generations = []
pred_labels = []
pred_loader = data_loader(input_rng, predict_dataset, eval_batch_size, drop_last=False)
pred_steps = math.ceil(len(predict_dataset) / eval_batch_size)
for _ in tqdm(range(pred_steps), desc="Predicting...", position=2, leave=False):
# Model forward
batch = next(pred_loader)
labels = batch["labels"]
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch, min_device_batch=per_device_eval_batch_size
)
pred_metrics.append(metrics)
# generation
if data_args.predict_with_generate:
generated_ids = pad_shard_unpad(p_generate_step)(state.params, batch)
pred_generations.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
pred_labels.extend(labels)
# normalize prediction metrics
pred_metrics = get_metrics(pred_metrics)
pred_metrics = jax.tree_util.tree_map(jnp.mean, pred_metrics)
# compute ROUGE metrics
rouge_desc = ""
if data_args.predict_with_generate:
rouge_metrics = compute_metrics(pred_generations, pred_labels)
pred_metrics.update(rouge_metrics)
rouge_desc = " ".join([f"Predict {key}: {value} |" for key, value in rouge_metrics.items()])
# Print metrics
desc = f"Predict Loss: {pred_metrics['loss']} | {rouge_desc})"
logger.info(desc)
# save final metrics in json
if jax.process_index() == 0:
rouge_metrics = {f"test_{metric_name}": value for metric_name, value in rouge_metrics.items()}
path = os.path.join(training_args.output_dir, "test_results.json")
with open(path, "w") as f:
json.dump(rouge_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/summarization/requirements.txt | datasets >= 1.1.3
jax>=0.2.8
jaxlib>=0.1.59
flax>=0.3.5
optax>=0.0.8
evaluate>=0.2.0
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/summarization/README.md | # Summarization (Seq2Seq model) training examples
The following example showcases how to finetune a sequence-to-sequence model for summarization
using the JAX/Flax backend.
JAX/Flax allows you to trace pure functions and compile them into efficient, fused accelerator code on both GPU and TPU.
Models written in JAX/Flax are **immutable** and updated in a purely functional
way which enables simple and efficient model parallelism.
`run_summarization_flax.py` is a lightweight example of how to download and preprocess a dataset from the 🤗 Datasets library or use your own files (jsonlines or csv), then fine-tune one of the architectures above on it.
For custom datasets in `jsonlines` format please see: https://huggingface.co/docs/datasets/loading_datasets#json-files and you also will find examples of these below.
### Train the model
Next we can run the example script to train the model:
```bash
python run_summarization_flax.py \
--output_dir ./bart-base-xsum \
--model_name_or_path facebook/bart-base \
--tokenizer_name facebook/bart-base \
--dataset_name="xsum" \
--do_train --do_eval --do_predict --predict_with_generate \
--num_train_epochs 6 \
--learning_rate 5e-5 --warmup_steps 0 \
--per_device_train_batch_size 64 \
--per_device_eval_batch_size 64 \
--overwrite_output_dir \
--max_source_length 512 --max_target_length 64 \
--push_to_hub
```
This should finish in 37min, with validation loss and ROUGE2 score of 1.7785 and 17.01 respectively after 6 epochs. training statistics can be accessed on [tfhub.de](https://tensorboard.dev/experiment/OcPfOIgXRMSJqYB4RdK2tA/#scalars).
> Note that here we used default `generate` arguments, using arguments specific for `xsum` dataset should give better ROUGE scores.
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/image-captioning/create_model_from_encoder_decoder_models.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2022 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Create a VisionEncoderDecoderModel instance from pretrained encoder/decoder models.
The cross-attention will be randomly initialized.
"""
from dataclasses import dataclass, field
from typing import Optional
from transformers import AutoConfig, AutoImageProcessor, AutoTokenizer, FlaxVisionEncoderDecoderModel, HfArgumentParser
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
output_dir: str = field(
metadata={"help": "The output directory where the model will be written."},
)
encoder_model_name_or_path: str = field(
metadata={
"help": (
"The encoder model checkpoint for weights initialization. "
"Don't set if you want to train an encoder model from scratch."
)
},
)
decoder_model_name_or_path: str = field(
metadata={
"help": (
"The decoder model checkpoint for weights initialization. "
"Don't set if you want to train a decoder model from scratch."
)
},
)
encoder_config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained encoder config name or path if not the same as encoder_model_name"}
)
decoder_config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained decoder config name or path if not the same as decoder_model_name"}
)
def main():
parser = HfArgumentParser((ModelArguments,))
(model_args,) = parser.parse_args_into_dataclasses()
# Load pretrained model and tokenizer
# Use explicit specified encoder config
if model_args.encoder_config_name:
encoder_config = AutoConfig.from_pretrained(model_args.encoder_config_name)
# Use pretrained encoder model's config
else:
encoder_config = AutoConfig.from_pretrained(model_args.encoder_model_name_or_path)
# Use explicit specified decoder config
if model_args.decoder_config_name:
decoder_config = AutoConfig.from_pretrained(model_args.decoder_config_name)
# Use pretrained decoder model's config
else:
decoder_config = AutoConfig.from_pretrained(model_args.decoder_model_name_or_path)
# necessary for `from_encoder_decoder_pretrained` when `decoder_config` is passed
decoder_config.is_decoder = True
decoder_config.add_cross_attention = True
model = FlaxVisionEncoderDecoderModel.from_encoder_decoder_pretrained(
encoder_pretrained_model_name_or_path=model_args.encoder_model_name_or_path,
decoder_pretrained_model_name_or_path=model_args.decoder_model_name_or_path,
encoder_config=encoder_config,
decoder_config=decoder_config,
)
# GPT2 only has bos/eos tokens but not decoder_start/pad tokens
decoder_start_token_id = decoder_config.decoder_start_token_id
pad_token_id = decoder_config.pad_token_id
if decoder_start_token_id is None:
decoder_start_token_id = decoder_config.bos_token_id
if pad_token_id is None:
pad_token_id = decoder_config.eos_token_id
# This is necessary to make Flax's generate() work
model.config.eos_token_id = decoder_config.eos_token_id
model.config.decoder_start_token_id = decoder_start_token_id
model.config.pad_token_id = pad_token_id
image_processor = AutoImageProcessor.from_pretrained(model_args.encoder_model_name_or_path)
tokenizer = AutoTokenizer.from_pretrained(model_args.decoder_model_name_or_path)
tokenizer.pad_token = tokenizer.convert_ids_to_tokens(model.config.pad_token_id)
model.save_pretrained(model_args.output_dir)
image_processor.save_pretrained(model_args.output_dir)
tokenizer.save_pretrained(model_args.output_dir)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/image-captioning/README.md | # Image Captioning (vision-encoder-text-decoder model) training example
The following example showcases how to finetune a vision-encoder-text-decoder model for image captioning
using the JAX/Flax backend, leveraging 🤗 Transformers library's [FlaxVisionEncoderDecoderModel](https://huggingface.co/docs/transformers/model_doc/vision-encoder-decoder#transformers.FlaxVisionEncoderDecoderModel).
JAX/Flax allows you to trace pure functions and compile them into efficient, fused accelerator code on both GPU and TPU.
Models written in JAX/Flax are **immutable** and updated in a purely functional
way which enables simple and efficient model parallelism.
`run_image_captioning_flax.py` is a lightweight example of how to download and preprocess a dataset from the 🤗 Datasets
library or use your own files (jsonlines or csv), then fine-tune one of the architectures above on it.
For custom datasets in `jsonlines` format please see: https://huggingface.co/docs/datasets/loading_datasets#json-files and you also will find examples of these below.
### Download COCO dataset (2017)
This example uses COCO dataset (2017) through a custom dataset script, which requires users to manually download the
COCO dataset before training.
```bash
mkdir data
cd data
wget http://images.cocodataset.org/zips/train2017.zip
wget http://images.cocodataset.org/zips/val2017.zip
wget http://images.cocodataset.org/zips/test2017.zip
wget http://images.cocodataset.org/annotations/annotations_trainval2017.zip
wget http://images.cocodataset.org/annotations/image_info_test2017.zip
cd ..
```
### Create a model from a vision encoder model and a text decoder model
Next, we create a [FlaxVisionEncoderDecoderModel](https://huggingface.co/docs/transformers/model_doc/visionencoderdecoder#transformers.FlaxVisionEncoderDecoderModel) instance from a pre-trained vision encoder ([ViT](https://huggingface.co/docs/transformers/model_doc/vit#transformers.FlaxViTModel)) and a pre-trained text decoder ([GPT2](https://huggingface.co/docs/transformers/model_doc/gpt2#transformers.FlaxGPT2Model)):
```bash
python3 create_model_from_encoder_decoder_models.py \
--output_dir model \
--encoder_model_name_or_path google/vit-base-patch16-224-in21k \
--decoder_model_name_or_path openai-community/gpt2
```
### Train the model
Finally, we can run the example script to train the model:
```bash
python3 run_image_captioning_flax.py \
--output_dir ./image-captioning-training-results \
--model_name_or_path model \
--dataset_name ydshieh/coco_dataset_script \
--dataset_config_name=2017 \
--data_dir $PWD/data \
--image_column image_path \
--caption_column caption \
--do_train --do_eval --predict_with_generate \
--num_train_epochs 1 \
--eval_steps 500 \
--learning_rate 3e-5 --warmup_steps 0 \
--per_device_train_batch_size 32 \
--per_device_eval_batch_size 32 \
--overwrite_output_dir \
--max_target_length 32 \
--num_beams 8 \
--preprocessing_num_workers 16 \
--logging_steps 10 \
--block_size 16384 \
--push_to_hub
```
This should finish in about 1h30 on Cloud TPU, with validation loss and ROUGE2 score of 2.0153 and 14.64 respectively
after 1 epoch. Training statistics can be accessed on [Models](https://huggingface.co/ydshieh/image-captioning-training-results/tensorboard).
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/image-captioning/run_image_captioning_flax.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2022 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library vision-encoder-decoder models for image captioning.
"""
import json
import logging
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from functools import partial
from pathlib import Path
from typing import Callable, Optional
import datasets
import evaluate
import jax
import jax.numpy as jnp
import nltk # Here to have a nice missing dependency error message early on
import numpy as np
import optax
from datasets import Dataset, load_dataset
from filelock import FileLock
from flax import jax_utils, traverse_util
from flax.jax_utils import unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
from huggingface_hub import HfApi
from PIL import Image
from tqdm import tqdm
import transformers
from transformers import (
AutoImageProcessor,
AutoTokenizer,
FlaxVisionEncoderDecoderModel,
HfArgumentParser,
is_tensorboard_available,
)
from transformers.utils import is_offline_mode, send_example_telemetry
logger = logging.getLogger(__name__)
try:
nltk.data.find("tokenizers/punkt")
except (LookupError, OSError):
if is_offline_mode():
raise LookupError(
"Offline mode: run this script without TRANSFORMERS_OFFLINE first to download nltk data files"
)
with FileLock(".lock") as lock:
nltk.download("punkt", quiet=True)
# Copied from transformers.models.bart.modeling_flax_bart.shift_tokens_right
def shift_tokens_right(input_ids: np.ndarray, pad_token_id: int, decoder_start_token_id: int) -> np.ndarray:
"""
Shift input ids one token to the right.
"""
shifted_input_ids = np.zeros_like(input_ids)
shifted_input_ids[:, 1:] = input_ids[:, :-1]
shifted_input_ids[:, 0] = decoder_start_token_id
shifted_input_ids = np.where(shifted_input_ids == -100, pad_token_id, shifted_input_ids)
return shifted_input_ids
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
do_predict: bool = field(default=False, metadata={"help": "Whether to run predictions on the test set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
_block_size_doc = """
The default value `0` will preprocess (tokenization + image processing) the whole dataset before training and
cache the results. This uses more disk space, but avoids (repeated) processing time during training. This is a
good option if your disk space is large enough to store the whole processed dataset.
If a positive value is given, the captions in the dataset will be tokenized before training and the results are
cached. During training, it iterates the dataset in chunks of size `block_size`. On each block, images are
transformed by the image processor with the results being kept in memory (no cache), and batches of size
`batch_size` are yielded before processing the next block. This could avoid the heavy disk usage when the
dataset is large.
"""
block_size: int = field(default=0, metadata={"help": _block_size_doc})
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
label_smoothing_factor: float = field(
default=0.0, metadata={"help": "The label smoothing epsilon to apply (zero means no label smoothing)."}
)
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: str = field(
metadata={"help": "The model checkpoint for weights initialization."},
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
use_fast_tokenizer: bool = field(
default=True,
metadata={"help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
data_dir: Optional[str] = field(
default=None, metadata={"help": "The data directory of the dataset to use (via the datasets library)."}
)
image_column: Optional[str] = field(
default=None,
metadata={"help": "The name of the column in the datasets containing the full image file paths."},
)
caption_column: Optional[str] = field(
default=None,
metadata={"help": "The name of the column in the datasets containing the image captions."},
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input predict data file to do prediction on (a text file)."},
)
max_target_length: Optional[int] = field(
default=128,
metadata={
"help": (
"The maximum total sequence length for target text after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
val_max_target_length: Optional[int] = field(
default=None,
metadata={
"help": (
"The maximum total sequence length for validation target text after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded. Will default to `max_target_length`. "
"This argument is also used to override the `max_length` param of `model.generate`, which is used "
"during evaluation."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
predict_with_generate: bool = field(
default=False, metadata={"help": "Whether to use generate to calculate generative metrics (ROUGE, BLEU)."}
)
num_beams: Optional[int] = field(
default=None,
metadata={
"help": (
"Number of beams to use for evaluation. This argument will be passed to `model.generate`, "
"which is used during evaluation."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
def __post_init__(self):
if self.dataset_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
if extension not in ["csv", "json"]:
raise ValueError(f"`train_file` should be a csv or a json file, got {extension}.")
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
if extension not in ["csv", "json"]:
raise ValueError(f"`validation_file` should be a csv or a json file, got {extension}.")
if self.val_max_target_length is None:
self.val_max_target_length = self.max_target_length
image_captioning_name_mapping = {
"image_caption_dataset.py": ("image_path", "caption"),
}
class TrainState(train_state.TrainState):
dropout_rng: jnp.ndarray
def replicate(self):
return jax_utils.replicate(self).replace(dropout_rng=shard_prng_key(self.dropout_rng))
def data_loader(rng: jax.random.PRNGKey, dataset: Dataset, batch_size: int, shuffle: bool = False):
"""
Returns batches of size `batch_size` from truncated `dataset`, sharded over all local devices.
Shuffle batches if `shuffle` is `True`.
"""
steps = len(dataset) // batch_size # Skip incomplete batch.
# We use `numpy.ndarray` to interact with `datasets.Dataset`, since using `jax.numpy.array` to index into a
# dataset is significantly slow. Using JAX array at the 1st place is only to keep JAX's PRNGs generation
# mechanism, which works differently from NumPy/SciPy.
if shuffle:
batch_idx = jax.random.permutation(rng, len(dataset))
batch_idx = np.asarray(batch_idx)
else:
batch_idx = np.arange(len(dataset))
for idx in range(steps):
start_idx = batch_size * idx
end_idx = batch_size * (idx + 1)
selected_indices = batch_idx[start_idx:end_idx]
batch = dataset[selected_indices]
batch = shard(batch)
yield batch
def write_metric(summary_writer, metrics, train_time, step, metric_key_prefix="train"):
if train_time:
summary_writer.scalar("train_time", train_time, step)
metrics = get_metrics(metrics)
for key, vals in metrics.items():
tag = f"{metric_key_prefix}_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
else:
for metric_name, value in metrics.items():
summary_writer.scalar(f"{metric_key_prefix}_{metric_name}", value, step)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_image_captioning", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files this script will use the first column for the full image path and the second column for the
# captions (unless you specify column names for this with the `image_column` and `caption_column` arguments).
#
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
dataset = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
keep_in_memory=False,
data_dir=data_args.data_dir,
token=model_args.token,
)
else:
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if data_args.test_file is not None:
data_files["test"] = data_args.test_file
extension = data_args.test_file.split(".")[-1]
dataset = load_dataset(
extension,
data_files=data_files,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# Load pretrained model and tokenizer
model = FlaxVisionEncoderDecoderModel.from_pretrained(
model_args.model_name_or_path,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
image_processor = AutoImageProcessor.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=model_args.use_fast_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer.pad_token = tokenizer.convert_ids_to_tokens(model.config.pad_token_id)
# Preprocessing the datasets.
# We need to tokenize inputs and targets.
if training_args.do_train:
column_names = dataset["train"].column_names
elif training_args.do_eval:
column_names = dataset["validation"].column_names
elif training_args.do_predict:
column_names = dataset["test"].column_names
else:
logger.info("There is nothing to do. Please pass `do_train`, `do_eval` and/or `do_predict`.")
return
# Get the column names for input/target.
dataset_columns = image_captioning_name_mapping.get(data_args.dataset_name, None)
if data_args.image_column is None:
if dataset_columns is None:
raise ValueError(
f"`--dataset_name` {data_args.dataset_name} not found in dataset '{data_args.dataset_name}'. Make sure"
" to set `--dataset_name` to the correct dataset name, one of"
f" {', '.join(image_captioning_name_mapping.keys())}."
)
image_column = dataset_columns[0]
else:
image_column = data_args.image_column
if image_column not in column_names:
raise ValueError(
f"--image_column' value '{data_args.image_column}' needs to be one of: {', '.join(column_names)}"
)
if data_args.caption_column is None:
if dataset_columns is None:
raise ValueError(
f"`--dataset_name` {data_args.dataset_name} not found in dataset '{data_args.dataset_name}'. Make sure"
" to set `--dataset_name` to the correct dataset name, one of"
f" {', '.join(image_captioning_name_mapping.keys())}."
)
caption_column = dataset_columns[1]
else:
caption_column = data_args.caption_column
if caption_column not in column_names:
raise ValueError(
f"--caption_column' value '{data_args.caption_column}' needs to be one of: {', '.join(column_names)}"
)
# In Flax, for seq2seq models we need to pass `decoder_input_ids`
# as the Flax models don't accept `labels`, we need to prepare the decoder_input_ids here
# for that dynamically import the `shift_tokens_right` function from the model file
model_module = __import__(model.__module__, fromlist=["shift_tokens_right"])
shift_tokens_right_fn = getattr(model_module, "shift_tokens_right", shift_tokens_right)
def filter_fn(examples):
"""remove problematic images"""
bools = []
for image_file in examples[image_column]:
try:
image = Image.open(image_file)
image_processor(images=image, return_tensors="np")
bools.append(True)
except Exception:
bools.append(False)
return bools
# Setting padding="max_length" as we need fixed length inputs for jitted functions
def tokenization_fn(examples, max_target_length):
"""Run tokenization on captions."""
captions = []
for caption in examples[caption_column]:
captions.append(caption.lower() + " " + tokenizer.eos_token)
targets = captions
model_inputs = {}
labels = tokenizer(
text_target=targets,
max_length=max_target_length,
padding="max_length",
truncation=True,
return_tensors="np",
)
model_inputs["labels"] = labels["input_ids"]
decoder_input_ids = shift_tokens_right_fn(
labels["input_ids"], model.config.pad_token_id, model.config.decoder_start_token_id
)
model_inputs["decoder_input_ids"] = np.asarray(decoder_input_ids)
# We need decoder_attention_mask so we can ignore pad tokens from loss
model_inputs["decoder_attention_mask"] = labels["attention_mask"]
model_inputs[image_column] = examples[image_column]
return model_inputs
def image_processing_fn(examples, check_image=True):
"""
Run preprocessing on images
If `check_image` is `True`, the examples that fails during `Image.open()` will be caught and discarded.
Otherwise, an exception will be thrown.
"""
model_inputs = {}
if check_image:
images = []
to_keep = []
for image_file in examples[image_column]:
try:
img = Image.open(image_file)
images.append(img)
to_keep.append(True)
except Exception:
to_keep.append(False)
for k, v in examples.items():
if k != image_column:
model_inputs[k] = v[to_keep]
else:
images = [Image.open(image_file) for image_file in examples[image_column]]
encoder_inputs = image_processor(images=images, return_tensors="np")
model_inputs["pixel_values"] = encoder_inputs.pixel_values
return model_inputs
def preprocess_fn(examples, max_target_length, check_image=True):
"""Run tokenization + image processing"""
model_inputs = {}
# This contains image path column
model_inputs.update(tokenization_fn(examples, max_target_length))
model_inputs.update(image_processing_fn(model_inputs, check_image=check_image))
# Remove image path column
model_inputs.pop(image_column)
return model_inputs
features = datasets.Features(
{
"pixel_values": datasets.Array3D(
shape=(
getattr(model.config.encoder, "num_channels", 3),
model.config.encoder.image_size,
model.config.encoder.image_size,
),
dtype="float32",
),
"labels": datasets.Sequence(feature=datasets.Value(dtype="int32", id=None), length=-1, id=None),
"decoder_input_ids": datasets.Sequence(feature=datasets.Value(dtype="int32", id=None), length=-1, id=None),
"decoder_attention_mask": datasets.Sequence(
feature=datasets.Value(dtype="int32", id=None), length=-1, id=None
),
}
)
# If `block_size` is `0`, tokenization & image processing is done at the beginning
run_img_proc_at_beginning = training_args.block_size == 0
# Used in .map() below
function_kwarg = preprocess_fn if run_img_proc_at_beginning else tokenization_fn
# `features` is used only for the final preprocessed dataset (for the performance purpose).
features_kwarg = features if run_img_proc_at_beginning else None
# Keep `image_column` if the image processing is done during training
remove_columns_kwarg = [x for x in column_names if x != image_column or run_img_proc_at_beginning]
processor_names = "tokenizer and image processor" if run_img_proc_at_beginning else "tokenizer"
# Store some constant
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
eval_batch_size = int(training_args.per_device_eval_batch_size) * jax.device_count()
if training_args.block_size % train_batch_size > 0 or training_args.block_size % eval_batch_size > 0:
raise ValueError(
"`training_args.block_size` needs to be a multiple of the global train/eval batch size. "
f"Got {training_args.block_size}, {train_batch_size} and {eval_batch_size} respectively instead."
)
if training_args.do_train:
if "train" not in dataset:
raise ValueError("--do_train requires a train dataset")
train_dataset = dataset["train"]
if data_args.max_train_samples is not None:
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
# remove problematic examples
# (if image processing is performed at the beginning, the filtering is done during preprocessing below
# instead here.)
if not run_img_proc_at_beginning:
train_dataset = train_dataset.filter(filter_fn, batched=True, num_proc=data_args.preprocessing_num_workers)
train_dataset = train_dataset.map(
function=function_kwarg,
batched=True,
num_proc=data_args.preprocessing_num_workers,
# kept image paths
remove_columns=remove_columns_kwarg,
load_from_cache_file=not data_args.overwrite_cache,
desc=f"Running {processor_names} on train dataset",
fn_kwargs={"max_target_length": data_args.max_target_length},
features=features_kwarg,
)
if run_img_proc_at_beginning:
# set format (for performance) since the dataset is ready to be used
train_dataset = train_dataset.with_format("numpy")
steps_per_epoch = len(train_dataset) // train_batch_size
num_train_examples_per_epoch = steps_per_epoch * train_batch_size
num_epochs = int(training_args.num_train_epochs)
total_train_steps = steps_per_epoch * num_epochs
else:
num_train_examples_per_epoch = 0
if training_args.do_eval:
if "validation" not in dataset:
raise ValueError("--do_eval requires a validation dataset")
eval_dataset = dataset["validation"]
if data_args.max_eval_samples is not None:
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
# remove problematic examples
# (if image processing is performed at the beginning, the filtering is done during preprocessing below
# instead here.)
if not run_img_proc_at_beginning:
eval_dataset = eval_dataset.filter(filter_fn, batched=True, num_proc=data_args.preprocessing_num_workers)
eval_dataset = eval_dataset.map(
function=function_kwarg,
batched=True,
num_proc=data_args.preprocessing_num_workers,
# kept image paths
remove_columns=remove_columns_kwarg,
load_from_cache_file=not data_args.overwrite_cache,
desc=f"Running {processor_names} on validation dataset",
fn_kwargs={"max_target_length": data_args.val_max_target_length},
features=features_kwarg,
)
if run_img_proc_at_beginning:
# set format (for performance) since the dataset is ready to be used
eval_dataset = eval_dataset.with_format("numpy")
num_eval_examples = len(eval_dataset)
eval_steps = num_eval_examples // eval_batch_size
if training_args.do_predict:
if "test" not in dataset:
raise ValueError("--do_predict requires a test dataset")
predict_dataset = dataset["test"]
if data_args.max_predict_samples is not None:
max_predict_samples = min(len(predict_dataset), data_args.max_predict_samples)
predict_dataset = predict_dataset.select(range(max_predict_samples))
# remove problematic examples
# (if image processing is performed at the beginning, the filtering is done during preprocessing below
# instead here.)
if not run_img_proc_at_beginning:
predict_dataset = predict_dataset.filter(
filter_fn, batched=True, num_proc=data_args.preprocessing_num_workers
)
predict_dataset = predict_dataset.map(
function=function_kwarg,
batched=True,
num_proc=data_args.preprocessing_num_workers,
# kept image paths
remove_columns=remove_columns_kwarg,
load_from_cache_file=not data_args.overwrite_cache,
desc=f"Running {processor_names} on prediction dataset",
fn_kwargs={"max_target_length": data_args.val_max_target_length},
features=features_kwarg,
)
if run_img_proc_at_beginning:
# set format (for performance) since the dataset is ready to be used
predict_dataset = predict_dataset.with_format("numpy")
num_test_examples = len(predict_dataset)
test_steps = num_test_examples // eval_batch_size
def blockwise_data_loader(
rng: jax.random.PRNGKey,
ds: Dataset,
block_size: int,
batch_size: int,
shuffle: bool = False,
keep_in_memory: bool = False,
split: str = "",
):
"""
Wrap the simple `data_loader` in a block-wise way if `block_size` > 0, else it's the same as `data_loader`.
If `block_size` > 0, it requires `ds` to have a column that gives image paths in order to perform image
processing (with the column name being specified by `image_column`). The tokenization should be done before
training in this case.
"""
# We use `numpy.ndarray` to interact with `datasets.Dataset`, since using `jax.numpy.array` to index into a
# dataset is significantly slow. Using JAX array at the 1st place is only to keep JAX's PRNGs generation
# mechanism, which works differently from NumPy/SciPy.
if shuffle:
indices = jax.random.permutation(rng, len(ds))
indices = np.asarray(indices)
else:
indices = np.arange(len(ds))
_block_size = len(ds) if not block_size else block_size
steps_per_block = _block_size // batch_size
num_examples = len(ds)
steps = num_examples // batch_size
num_splits = steps // steps_per_block + int(steps % steps_per_block > 0)
for idx in range(num_splits):
if not block_size:
_ds = ds
else:
start_idx = block_size * idx
end_idx = block_size * (idx + 1)
selected_indices = indices[start_idx:end_idx]
_ds = ds.select(selected_indices)
_ds = _ds.map(
image_processing_fn,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=[image_column],
load_from_cache_file=not data_args.overwrite_cache,
features=features,
keep_in_memory=keep_in_memory,
# The images are already checked either in `.filter()` or in `preprocess_fn()`
fn_kwargs={"check_image": False},
desc=f"Running image processing on {split} dataset".replace(" ", " "),
)
_ds = _ds.with_format("numpy")
# No need to shuffle here
loader = data_loader(rng, _ds, batch_size=batch_size, shuffle=False)
for batch in loader:
yield batch
# Metric
metric = evaluate.load("rouge", cache_dir=model_args.cache_dir)
def postprocess_text(preds, labels):
preds = [pred.strip() for pred in preds]
labels = [label.strip() for label in labels]
# rougeLSum expects newline after each sentence
preds = ["\n".join(nltk.sent_tokenize(pred)) for pred in preds]
labels = ["\n".join(nltk.sent_tokenize(label)) for label in labels]
return preds, labels
def compute_metrics(preds, labels):
decoded_preds = tokenizer.batch_decode(preds, skip_special_tokens=True)
decoded_labels = tokenizer.batch_decode(labels, skip_special_tokens=True)
# Some simple post-processing
decoded_preds, decoded_labels = postprocess_text(decoded_preds, decoded_labels)
result = metric.compute(predictions=decoded_preds, references=decoded_labels, use_stemmer=True)
# Extract a few results from ROUGE
result = {key: value.mid.fmeasure * 100 for key, value in result.items()}
prediction_lens = [np.count_nonzero(pred != tokenizer.pad_token_id) for pred in preds]
result["gen_len"] = np.mean(prediction_lens)
result = {k: round(v, 6) for k, v in result.items()}
return result, decoded_preds, decoded_labels
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
rng, dropout_rng = jax.random.split(rng)
# Create learning rate schedule
linear_decay_lr_schedule_fn = create_learning_rate_fn(
num_train_examples_per_epoch,
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
# create adam optimizer
adamw = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
# Setup train state
state = TrainState.create(apply_fn=model.__call__, params=model.params, tx=adamw, dropout_rng=dropout_rng)
# label smoothed cross entropy
def loss_fn(logits, labels, padding_mask, label_smoothing_factor=0.0):
"""
The label smoothing implementation is adapted from Flax's official example:
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
"""
vocab_size = logits.shape[-1]
confidence = 1.0 - label_smoothing_factor
low_confidence = (1.0 - confidence) / (vocab_size - 1)
normalizing_constant = -(
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
)
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
loss = optax.softmax_cross_entropy(logits, soft_labels)
loss = loss - normalizing_constant
# ignore padded tokens from loss
loss = loss * padding_mask
loss = loss.sum()
num_labels = padding_mask.sum()
return loss, num_labels
# Define gradient update step fn
def train_step(state, batch, label_smoothing_factor=0.0):
dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
def compute_loss(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss, num_labels = loss_fn(logits, labels, batch["decoder_attention_mask"], label_smoothing_factor)
return loss, num_labels
grad_fn = jax.value_and_grad(compute_loss, has_aux=True)
(loss, num_labels), grad = grad_fn(state.params)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
# true grad = total grad / total samples
grad = jax.lax.psum(grad, "batch")
grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
new_state = state.apply_gradients(grads=grad, dropout_rng=new_dropout_rng)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
return new_state, metrics
# Define eval fn
def eval_step(params, batch, label_smoothing_factor=0.0):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
loss, num_labels = loss_fn(logits, labels, batch["decoder_attention_mask"], label_smoothing_factor)
num_labels = jax.lax.psum(num_labels, "batch")
# true loss = total loss / total samples
loss = jax.lax.psum(loss, "batch")
loss = jax.tree_util.tree_map(lambda x: x / num_labels, loss)
metrics = {"loss": loss}
return metrics
# Define generation function
max_length = (
data_args.val_max_target_length if data_args.val_max_target_length is not None else model.config.max_length
)
num_beams = data_args.num_beams if data_args.num_beams is not None else model.config.num_beams
gen_kwargs = {"max_length": max_length, "num_beams": num_beams}
def generate_step(params, batch):
model.params = params
output_ids = model.generate(batch["pixel_values"], **gen_kwargs)
return output_ids.sequences
# Create parallel version of the train and eval step
p_train_step = jax.pmap(
partial(train_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch", donate_argnums=(0,)
)
p_eval_step = jax.pmap(partial(eval_step, label_smoothing_factor=training_args.label_smoothing_factor), "batch")
p_generate_step = jax.pmap(generate_step, "batch")
# Replicate the train state on each device
state = state.replicate()
if training_args.do_train:
logger.info("***** Running training *****")
logger.info(f" Num train examples = {num_train_examples_per_epoch}")
logger.info(f" Num Epochs = {num_epochs}")
logger.info(f" Instantaneous train batch size per device = {training_args.per_device_train_batch_size}")
logger.info(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
logger.info(f" Optimization steps per epoch = {steps_per_epoch}")
logger.info(f" Total optimization steps = {total_train_steps}")
if training_args.do_eval:
logger.info(f" Num evaluation examples = {num_eval_examples}")
logger.info(f" Instantaneous evaluation batch size per device = {training_args.per_device_eval_batch_size}")
logger.info(f" Total evaluation batch size (w. parallel & distributed) = {eval_batch_size}")
logger.info(f" Evaluation steps = {eval_steps}")
if training_args.do_predict:
logger.info(f" Num test examples = {num_test_examples}")
logger.info(f" Instantaneous test batch size per device = {training_args.per_device_eval_batch_size}")
logger.info(f" Total test batch size (w. parallel & distributed) = {eval_batch_size}")
logger.info(f" Test steps = {test_steps}")
# create output directory
if not os.path.isdir(os.path.join(training_args.output_dir)):
os.makedirs(os.path.join(training_args.output_dir), exist_ok=True)
def save_ckpt(ckpt_dir: str, commit_msg: str = ""):
"""save checkpoints and push to Hugging Face Hub if specified"""
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(os.path.join(training_args.output_dir, ckpt_dir), params=params)
tokenizer.save_pretrained(os.path.join(training_args.output_dir, ckpt_dir))
if training_args.push_to_hub:
api.upload_folder(
commit_message=commit_msg,
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
def evaluation_loop(
rng: jax.random.PRNGKey,
dataset: Dataset,
metric_key_prefix: str = "eval",
ckpt_dir: str = "",
is_prediction=False,
):
logger.info(f"*** {'Predict' if is_prediction else 'Evaluate'} ***")
metrics = []
preds = []
labels = []
batches = blockwise_data_loader(
rng,
dataset,
block_size=training_args.block_size,
batch_size=eval_batch_size,
keep_in_memory=False,
shuffle=False,
split="prediction" if is_prediction else "validation",
)
steps = len(dataset) // eval_batch_size
for _ in tqdm(
range(steps), desc=f"{'Predicting' if is_prediction else 'Evaluating'}...", position=2, leave=False
):
# Model forward
batch = next(batches)
_labels = batch.get("labels", None)
if not is_prediction and _labels is None:
raise ValueError("Evaluation requires the validation dataset to have `labels`")
if _labels is not None:
_metrics = p_eval_step(state.params, batch)
metrics.append(_metrics)
# generation
if data_args.predict_with_generate:
generated_ids = p_generate_step(state.params, batch)
preds.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
if _labels is not None:
labels.extend(jax.device_get(_labels.reshape(-1, _labels.shape[-1])))
if metrics:
# normalize metrics
metrics = get_metrics(metrics)
metrics = jax.tree_util.tree_map(jnp.mean, metrics)
# compute ROUGE metrics
generations = []
rouge_desc = ""
if data_args.predict_with_generate:
if labels:
rouge_metrics, decoded_preds, decoded_labels = compute_metrics(preds, labels)
metrics.update(rouge_metrics)
rouge_desc = " ".join(
[
f"{'Predict' if is_prediction else 'Eval'} {key}: {value} |"
for key, value in rouge_metrics.items()
]
)
for pred, label in zip(decoded_preds, decoded_labels):
pred = pred.replace("\n", " ")
label = label.replace("\n", " ")
generations.append({"label": label, "pred": pred})
else:
decoded_preds = tokenizer.batch_decode(preds, skip_special_tokens=True)
# Some simple post-processing
decoded_preds = [pred.strip() for pred in decoded_preds]
# rougeLSum expects newline after each sentence
decoded_preds = ["\n".join(nltk.sent_tokenize(pred)) for pred in decoded_preds]
for pred in decoded_preds:
pred = pred.replace("\n", " ")
generations.append({"pred": pred})
if metrics:
# Print metrics and update progress bar
desc = f"{'Predict' if is_prediction else 'Eval'} Loss: {metrics['loss']} | {rouge_desc})"
if training_args.do_train and not is_prediction:
desc = f"Epoch... ({epoch + 1}/{num_epochs} | Step: {cur_step} | " + desc
epochs.write(desc)
epochs.desc = desc
logger.info(desc)
if jax.process_index() == 0:
if not os.path.isdir(os.path.join(training_args.output_dir, ckpt_dir)):
os.makedirs(os.path.join(training_args.output_dir, ckpt_dir), exist_ok=True)
if metrics:
# Save metrics (only for the evaluation/prediction being done along with training)
if has_tensorboard and training_args.do_train:
write_metric(
summary_writer, metrics, train_time=None, step=cur_step, metric_key_prefix=metric_key_prefix
)
# save final metrics in json
metrics = {
f"{metric_key_prefix}_{metric_name}": round(value.item(), 6)
for metric_name, value in metrics.items()
}
_path = os.path.join(training_args.output_dir, ckpt_dir, f"{metric_key_prefix}_results.json")
with open(_path, "w") as f:
json.dump(metrics, f, indent=4, sort_keys=True)
# Update report
with open(os.path.join(training_args.output_dir, "log"), "a", encoding="UTF-8") as fp:
fp.write(desc + "\n")
# Save generations
if generations:
output_file = os.path.join(training_args.output_dir, ckpt_dir, f"{metric_key_prefix}_generation.json")
with open(output_file, "w", encoding="UTF-8") as fp:
json.dump(generations, fp, ensure_ascii=False, indent=4)
def evaluate(rng: jax.random.PRNGKey, dataset: Dataset, ckpt_dir: str = ""):
evaluation_loop(rng, dataset, metric_key_prefix="eval", ckpt_dir=ckpt_dir)
def predict(rng: jax.random.PRNGKey, dataset: Dataset):
evaluation_loop(rng, dataset, metric_key_prefix="test", is_prediction=True)
input_rng = None
if training_args.do_train:
cur_step = 0
train_time = 0
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
# ======================== Training ================================
# Create sampling rng
rng, input_rng = jax.random.split(rng)
train_metrics = []
train_batches = blockwise_data_loader(
input_rng,
train_dataset,
block_size=training_args.block_size,
batch_size=train_batch_size,
keep_in_memory=True,
shuffle=True,
split="train",
)
# train
for batch_idx, _ in enumerate(tqdm(range(steps_per_epoch), desc="Training...", position=1, leave=False)):
cur_step += 1
batch = next(train_batches)
batch_start = time.time()
state, train_metric = p_train_step(state, batch)
train_metrics.append(train_metric)
train_time += time.time() - batch_start
time_per_step = train_time / cur_step
# log and save info
if training_args.logging_steps > 0 and cur_step % training_args.logging_steps == 0:
_train_metric = unreplicate(train_metric)
desc = (
f"Epoch... ({epoch + 1}/{num_epochs} | Step: {cur_step} | Loss: {_train_metric['loss']} |"
f" Learning Rate: {_train_metric['learning_rate']} | Time per step: {time_per_step})"
)
epochs.desc = desc
epochs.write(desc)
logger.info(desc)
with open(os.path.join(training_args.output_dir, "log"), "a", encoding="UTF-8") as fp:
fp.write(desc + "\n")
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_metric(
summary_writer,
train_metrics,
train_time=train_time,
step=cur_step,
metric_key_prefix="train",
)
# ======================== Evaluating (inside an epoch) ==============================
if (
training_args.do_eval
and (training_args.eval_steps is not None and training_args.eval_steps > 0)
and cur_step % training_args.eval_steps == 0
):
ckpt_dir = f"ckpt_epoch_{epoch + 1}_step_{cur_step}"
commit_msg = f"Saving weights and logs of epoch {epoch + 1} - step {cur_step}"
evaluate(input_rng, eval_dataset, ckpt_dir)
save_ckpt(ckpt_dir=ckpt_dir, commit_msg=commit_msg)
# ======================== Epoch End ==============================
# log and save info
if training_args.logging_steps <= 0:
logger.info(desc)
with open(os.path.join(training_args.output_dir, "log"), "a", encoding="UTF-8") as fp:
fp.write(desc + "\n")
# Save metrics
if has_tensorboard and jax.process_index() == 0:
write_metric(
summary_writer, train_metrics, train_time=train_time, step=cur_step, metric_key_prefix="train"
)
# ======================== Evaluating (after each epoch) ==============================
if training_args.do_eval and (training_args.eval_steps is None or training_args.eval_steps <= 0):
ckpt_dir = f"ckpt_epoch_{epoch + 1}_step_{cur_step}"
commit_msg = f"Saving weights and logs of epoch {epoch + 1} - step {cur_step}"
evaluate(input_rng, eval_dataset, ckpt_dir)
save_ckpt(ckpt_dir=ckpt_dir, commit_msg=commit_msg)
# ======================== Evaluating | Predicting ==============================
# Create sampling rng
if input_rng is None:
rng, input_rng = jax.random.split(rng)
# run evaluation without training
if training_args.do_eval and not training_args.do_train:
evaluate(input_rng, eval_dataset)
# run prediction after (or without) training
if training_args.do_predict:
predict(input_rng, predict_dataset)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/vision/requirements.txt | jax>=0.2.8
jaxlib>=0.1.59
flax>=0.3.5
optax>=0.0.8
-f https://download.pytorch.org/whl/torch_stable.html
torch==1.13.1
-f https://download.pytorch.org/whl/torch_stable.html
torchvision==0.12.0+cpu
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/vision/README.md | <!---
Copyright 2021 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Image Classification training examples
The following example showcases how to train/fine-tune `ViT` for image-classification using the JAX/Flax backend.
JAX/Flax allows you to trace pure functions and compile them into efficient, fused accelerator code on both GPU and TPU.
Models written in JAX/Flax are **immutable** and updated in a purely functional
way which enables simple and efficient model parallelism.
In this example we will train/fine-tune the model on the [imagenette](https://github.com/fastai/imagenette) dataset.
## Prepare the dataset
We will use the [imagenette](https://github.com/fastai/imagenette) dataset to train/fine-tune our model. Imagenette is a subset of 10 easily classified classes from Imagenet (tench, English springer, cassette player, chain saw, church, French horn, garbage truck, gas pump, golf ball, parachute).
### Download and extract the data.
```bash
wget https://s3.amazonaws.com/fast-ai-imageclas/imagenette2.tgz
tar -xvzf imagenette2.tgz
```
This will create a `imagenette2` dir with two subdirectories `train` and `val` each with multiple subdirectories per class. The training script expects the following directory structure
```bash
root/dog/xxx.png
root/dog/xxy.png
root/dog/[...]/xxz.png
root/cat/123.png
root/cat/nsdf3.png
root/cat/[...]/asd932_.png
```
## Train the model
Next we can run the example script to fine-tune the model:
```bash
python run_image_classification.py \
--output_dir ./vit-base-patch16-imagenette \
--model_name_or_path google/vit-base-patch16-224-in21k \
--train_dir="imagenette2/train" \
--validation_dir="imagenette2/val" \
--num_train_epochs 5 \
--learning_rate 1e-3 \
--per_device_train_batch_size 128 --per_device_eval_batch_size 128 \
--overwrite_output_dir \
--preprocessing_num_workers 32 \
--push_to_hub
```
This should finish in ~7mins with 99% validation accuracy. | 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/vision/run_image_classification.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Pre-training/Fine-tuning ViT for image classification .
Here is the full list of checkpoints on the hub that can be fine-tuned by this script:
https://huggingface.co/models?filter=vit
"""
import logging
import os
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from pathlib import Path
from typing import Callable, Optional
import jax
import jax.numpy as jnp
import optax
# for dataset and preprocessing
import torch
import torchvision
import torchvision.transforms as transforms
from flax import jax_utils
from flax.jax_utils import pad_shard_unpad, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
from huggingface_hub import HfApi
from tqdm import tqdm
import transformers
from transformers import (
CONFIG_MAPPING,
FLAX_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING,
AutoConfig,
FlaxAutoModelForImageClassification,
HfArgumentParser,
is_tensorboard_available,
set_seed,
)
from transformers.utils import send_example_telemetry
logger = logging.getLogger(__name__)
MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING.keys())
MODEL_TYPES = tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune, or train from scratch.
"""
model_name_or_path: Optional[str] = field(
default=None,
metadata={
"help": (
"The model checkpoint for weights initialization. Don't set if you want to train a model from scratch."
)
},
)
model_type: Optional[str] = field(
default=None,
metadata={"help": "If training from scratch, pass a model type from the list: " + ", ".join(MODEL_TYPES)},
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None, metadata={"help": "Where do you want to store the pretrained models downloaded from s3"}
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
train_dir: str = field(
metadata={"help": "Path to the root training directory which contains one subdirectory per class."}
)
validation_dir: str = field(
metadata={"help": "Path to the root validation directory which contains one subdirectory per class."},
)
image_size: Optional[int] = field(default=224, metadata={"help": " The size (resolution) of each image."})
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
class TrainState(train_state.TrainState):
dropout_rng: jnp.ndarray
def replicate(self):
return jax_utils.replicate(self).replace(dropout_rng=shard_prng_key(self.dropout_rng))
def write_metric(summary_writer, train_metrics, eval_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def main():
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_image_classification", model_args, data_args, framework="flax")
if (
os.path.exists(training_args.output_dir)
and os.listdir(training_args.output_dir)
and training_args.do_train
and not training_args.overwrite_output_dir
):
raise ValueError(
f"Output directory ({training_args.output_dir}) already exists and is not empty. "
"Use --overwrite_output_dir to overcome."
)
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
transformers.utils.logging.set_verbosity_info()
else:
transformers.utils.logging.set_verbosity_error()
# Set the verbosity to info of the Transformers logger (on main process only):
logger.info(f"Training/evaluation parameters {training_args}")
# set seed for random transforms and torch dataloaders
set_seed(training_args.seed)
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Initialize datasets and pre-processing transforms
# We use torchvision here for faster pre-processing
# Note that here we are using some default pre-processing, for maximum accuracy
# one should tune this part and carefully select what transformations to use.
normalize = transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
train_dataset = torchvision.datasets.ImageFolder(
data_args.train_dir,
transforms.Compose(
[
transforms.RandomResizedCrop(data_args.image_size),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
normalize,
]
),
)
eval_dataset = torchvision.datasets.ImageFolder(
data_args.validation_dir,
transforms.Compose(
[
transforms.Resize(data_args.image_size),
transforms.CenterCrop(data_args.image_size),
transforms.ToTensor(),
normalize,
]
),
)
# Load pretrained model and tokenizer
if model_args.config_name:
config = AutoConfig.from_pretrained(
model_args.config_name,
num_labels=len(train_dataset.classes),
image_size=data_args.image_size,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
elif model_args.model_name_or_path:
config = AutoConfig.from_pretrained(
model_args.model_name_or_path,
num_labels=len(train_dataset.classes),
image_size=data_args.image_size,
cache_dir=model_args.cache_dir,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
config = CONFIG_MAPPING[model_args.model_type]()
logger.warning("You are instantiating a new config instance from scratch.")
if model_args.model_name_or_path:
model = FlaxAutoModelForImageClassification.from_pretrained(
model_args.model_name_or_path,
config=config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
else:
model = FlaxAutoModelForImageClassification.from_config(
config,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
trust_remote_code=model_args.trust_remote_code,
)
# Store some constant
num_epochs = int(training_args.num_train_epochs)
train_batch_size = int(training_args.per_device_train_batch_size) * jax.device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
steps_per_epoch = len(train_dataset) // train_batch_size
total_train_steps = steps_per_epoch * num_epochs
def collate_fn(examples):
pixel_values = torch.stack([example[0] for example in examples])
labels = torch.tensor([example[1] for example in examples])
batch = {"pixel_values": pixel_values, "labels": labels}
batch = {k: v.numpy() for k, v in batch.items()}
return batch
# Create data loaders
train_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=train_batch_size,
shuffle=True,
num_workers=data_args.preprocessing_num_workers,
persistent_workers=True,
drop_last=True,
collate_fn=collate_fn,
)
eval_loader = torch.utils.data.DataLoader(
eval_dataset,
batch_size=eval_batch_size,
shuffle=False,
num_workers=data_args.preprocessing_num_workers,
persistent_workers=True,
drop_last=False,
collate_fn=collate_fn,
)
# Enable tensorboard only on the master node
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(log_dir=Path(training_args.output_dir))
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
# Initialize our training
rng = jax.random.PRNGKey(training_args.seed)
rng, dropout_rng = jax.random.split(rng)
# Create learning rate schedule
linear_decay_lr_schedule_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
# create adam optimizer
adamw = optax.adamw(
learning_rate=linear_decay_lr_schedule_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
)
# Setup train state
state = TrainState.create(apply_fn=model.__call__, params=model.params, tx=adamw, dropout_rng=dropout_rng)
def loss_fn(logits, labels):
loss = optax.softmax_cross_entropy(logits, onehot(labels, logits.shape[-1]))
return loss.mean()
# Define gradient update step fn
def train_step(state, batch):
dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
def compute_loss(params):
labels = batch.pop("labels")
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss = loss_fn(logits, labels)
return loss
grad_fn = jax.value_and_grad(compute_loss)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad, dropout_rng=new_dropout_rng)
metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
metrics = jax.lax.pmean(metrics, axis_name="batch")
return new_state, metrics
# Define eval fn
def eval_step(params, batch):
labels = batch.pop("labels")
logits = model(**batch, params=params, train=False)[0]
loss = loss_fn(logits, labels)
# summarize metrics
accuracy = (jnp.argmax(logits, axis=-1) == labels).mean()
metrics = {"loss": loss, "accuracy": accuracy}
metrics = jax.lax.pmean(metrics, axis_name="batch")
return metrics
# Create parallel version of the train and eval step
p_train_step = jax.pmap(train_step, "batch", donate_argnums=(0,))
p_eval_step = jax.pmap(eval_step, "batch")
# Replicate the train state on each device
state = state.replicate()
logger.info("***** Running training *****")
logger.info(f" Num examples = {len(train_dataset)}")
logger.info(f" Num Epochs = {num_epochs}")
logger.info(f" Instantaneous batch size per device = {training_args.per_device_train_batch_size}")
logger.info(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
logger.info(f" Total optimization steps = {total_train_steps}")
train_time = 0
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
# ======================== Training ================================
train_start = time.time()
# Create sampling rng
rng, input_rng = jax.random.split(rng)
train_metrics = []
steps_per_epoch = len(train_dataset) // train_batch_size
train_step_progress_bar = tqdm(total=steps_per_epoch, desc="Training...", position=1, leave=False)
# train
for batch in train_loader:
batch = shard(batch)
state, train_metric = p_train_step(state, batch)
train_metrics.append(train_metric)
train_step_progress_bar.update(1)
train_time += time.time() - train_start
train_metric = unreplicate(train_metric)
train_step_progress_bar.close()
epochs.write(
f"Epoch... ({epoch + 1}/{num_epochs} | Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
# ======================== Evaluating ==============================
eval_metrics = []
eval_steps = len(eval_dataset) // eval_batch_size
eval_step_progress_bar = tqdm(total=eval_steps, desc="Evaluating...", position=2, leave=False)
for batch in eval_loader:
# Model forward
metrics = pad_shard_unpad(p_eval_step, static_return=True)(
state.params, batch, min_device_batch=per_device_eval_batch_size
)
eval_metrics.append(metrics)
eval_step_progress_bar.update(1)
# normalize eval metrics
eval_metrics = get_metrics(eval_metrics)
eval_metrics = jax.tree_util.tree_map(jnp.mean, eval_metrics)
# Print metrics and update progress bar
eval_step_progress_bar.close()
desc = (
f"Epoch... ({epoch + 1}/{num_epochs} | Eval Loss: {round(eval_metrics['loss'].item(), 4)} | "
f"Eval Accuracy: {round(eval_metrics['accuracy'].item(), 4)})"
)
epochs.write(desc)
epochs.desc = desc
# Save metrics
if has_tensorboard and jax.process_index() == 0:
cur_step = epoch * (len(train_dataset) // train_batch_size)
write_metric(summary_writer, train_metrics, eval_metrics, train_time, cur_step)
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
model.save_pretrained(training_args.output_dir, params=params)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of epoch {epoch}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/text-classification/run_flax_glue.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Finetuning a 🤗 Flax Transformers model for sequence classification on GLUE."""
import json
import logging
import math
import os
import random
import sys
import time
import warnings
from dataclasses import dataclass, field
from pathlib import Path
from typing import Any, Callable, Dict, Optional, Tuple
import datasets
import evaluate
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import load_dataset
from flax import struct, traverse_util
from flax.jax_utils import pad_shard_unpad, replicate, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
import transformers
from transformers import (
AutoConfig,
AutoTokenizer,
FlaxAutoModelForSequenceClassification,
HfArgumentParser,
PretrainedConfig,
TrainingArguments,
is_tensorboard_available,
)
from transformers.utils import check_min_version, send_example_telemetry
logger = logging.getLogger(__name__)
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
Array = Any
Dataset = datasets.arrow_dataset.Dataset
PRNGKey = Any
task_to_keys = {
"cola": ("sentence", None),
"mnli": ("premise", "hypothesis"),
"mrpc": ("sentence1", "sentence2"),
"qnli": ("question", "sentence"),
"qqp": ("question1", "question2"),
"rte": ("sentence1", "sentence2"),
"sst2": ("sentence", None),
"stsb": ("sentence1", "sentence2"),
"wnli": ("sentence1", "sentence2"),
}
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
use_slow_tokenizer: Optional[bool] = field(
default=False,
metadata={"help": "If passed, will use a slow tokenizer (not backed by the 🤗 Tokenizers library)."},
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Where do you want to store the pretrained models downloaded from huggingface.co"},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
task_name: Optional[str] = field(
default=None, metadata={"help": f"The name of the glue task to train on. choices {list(task_to_keys.keys())}"}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(
default=None, metadata={"help": "The input training data file (a csv or JSON file)."}
)
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate on (a csv or JSON file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input test data file to predict on (a csv or JSON file)."},
)
text_column_name: Optional[str] = field(
default=None, metadata={"help": "The column name of text to input in the file (a csv or JSON file)."}
)
label_column_name: Optional[str] = field(
default=None, metadata={"help": "The column name of label to input in the file (a csv or JSON file)."}
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_seq_length: int = field(
default=None,
metadata={
"help": (
"The maximum total input sequence length after tokenization. If set, sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
def __post_init__(self):
if self.task_name is None and self.train_file is None and self.validation_file is None:
raise ValueError("Need either a dataset name or a training/validation file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
self.task_name = self.task_name.lower() if isinstance(self.task_name, str) else self.task_name
def create_train_state(
model: FlaxAutoModelForSequenceClassification,
learning_rate_fn: Callable[[int], float],
is_regression: bool,
num_labels: int,
weight_decay: float,
) -> train_state.TrainState:
"""Create initial training state."""
class TrainState(train_state.TrainState):
"""Train state with an Optax optimizer.
The two functions below differ depending on whether the task is classification
or regression.
Args:
logits_fn: Applied to last layer to obtain the logits.
loss_fn: Function to compute the loss.
"""
logits_fn: Callable = struct.field(pytree_node=False)
loss_fn: Callable = struct.field(pytree_node=False)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
tx = optax.adamw(
learning_rate=learning_rate_fn, b1=0.9, b2=0.999, eps=1e-6, weight_decay=weight_decay, mask=decay_mask_fn
)
if is_regression:
def mse_loss(logits, labels):
return jnp.mean((logits[..., 0] - labels) ** 2)
return TrainState.create(
apply_fn=model.__call__,
params=model.params,
tx=tx,
logits_fn=lambda logits: logits[..., 0],
loss_fn=mse_loss,
)
else: # Classification.
def cross_entropy_loss(logits, labels):
xentropy = optax.softmax_cross_entropy(logits, onehot(labels, num_classes=num_labels))
return jnp.mean(xentropy)
return TrainState.create(
apply_fn=model.__call__,
params=model.params,
tx=tx,
logits_fn=lambda logits: logits.argmax(-1),
loss_fn=cross_entropy_loss,
)
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
def glue_train_data_collator(rng: PRNGKey, dataset: Dataset, batch_size: int):
"""Returns shuffled batches of size `batch_size` from truncated `train dataset`, sharded over all local devices."""
steps_per_epoch = len(dataset) // batch_size
perms = jax.random.permutation(rng, len(dataset))
perms = perms[: steps_per_epoch * batch_size] # Skip incomplete batch.
perms = perms.reshape((steps_per_epoch, batch_size))
for perm in perms:
batch = dataset[perm]
batch = {k: np.array(v) for k, v in batch.items()}
batch = shard(batch)
yield batch
def glue_eval_data_collator(dataset: Dataset, batch_size: int):
"""Returns batches of size `batch_size` from `eval dataset`. Sharding handled by `pad_shard_unpad` in the eval loop."""
batch_idx = np.arange(len(dataset))
steps_per_epoch = math.ceil(len(dataset) / batch_size)
batch_idx = np.array_split(batch_idx, steps_per_epoch)
for idx in batch_idx:
batch = dataset[idx]
batch = {k: np.array(v) for k, v in batch.items()}
yield batch
def main():
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_glue", model_args, data_args, framework="flax")
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# Get the datasets: you can either provide your own CSV/JSON training and evaluation files (see below)
# or specify a GLUE benchmark task (the dataset will be downloaded automatically from the datasets Hub).
# For CSV/JSON files, this script will use as labels the column called 'label' and as pair of sentences the
# sentences in columns called 'sentence1' and 'sentence2' if such column exists or the first two columns not named
# label if at least two columns are provided.
# If the CSVs/JSONs contain only one non-label column, the script does single sentence classification on this
# single column. You can easily tweak this behavior (see below)
# In distributed training, the load_dataset function guarantee that only one local process can concurrently
# download the dataset.
if data_args.task_name is not None:
# Downloading and loading a dataset from the hub.
raw_datasets = load_dataset(
"glue",
data_args.task_name,
token=model_args.token,
)
else:
# Loading the dataset from local csv or json file.
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = (data_args.train_file if data_args.train_file is not None else data_args.valid_file).split(".")[-1]
raw_datasets = load_dataset(
extension,
data_files=data_files,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset at
# https://huggingface.co/docs/datasets/loading_datasets.
# Labels
if data_args.task_name is not None:
is_regression = data_args.task_name == "stsb"
if not is_regression:
label_list = raw_datasets["train"].features["label"].names
num_labels = len(label_list)
else:
num_labels = 1
else:
# Trying to have good defaults here, don't hesitate to tweak to your needs.
is_regression = raw_datasets["train"].features["label"].dtype in ["float32", "float64"]
if is_regression:
num_labels = 1
else:
# A useful fast method:
# https://huggingface.co/docs/datasets/package_reference/main_classes#datasets.Dataset.unique
label_list = raw_datasets["train"].unique("label")
label_list.sort() # Let's sort it for determinism
num_labels = len(label_list)
# Load pretrained model and tokenizer
config = AutoConfig.from_pretrained(
model_args.model_name_or_path,
num_labels=num_labels,
finetuning_task=data_args.task_name,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.model_name_or_path,
use_fast=not model_args.use_slow_tokenizer,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
model = FlaxAutoModelForSequenceClassification.from_pretrained(
model_args.model_name_or_path,
config=config,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
# Preprocessing the datasets
if data_args.task_name is not None:
sentence1_key, sentence2_key = task_to_keys[data_args.task_name]
else:
# Again, we try to have some nice defaults but don't hesitate to tweak to your use case.
non_label_column_names = [name for name in raw_datasets["train"].column_names if name != "label"]
if "sentence1" in non_label_column_names and "sentence2" in non_label_column_names:
sentence1_key, sentence2_key = "sentence1", "sentence2"
else:
if len(non_label_column_names) >= 2:
sentence1_key, sentence2_key = non_label_column_names[:2]
else:
sentence1_key, sentence2_key = non_label_column_names[0], None
# Some models have set the order of the labels to use, so let's make sure we do use it.
label_to_id = None
if (
model.config.label2id != PretrainedConfig(num_labels=num_labels).label2id
and data_args.task_name is not None
and not is_regression
):
# Some have all caps in their config, some don't.
label_name_to_id = {k.lower(): v for k, v in model.config.label2id.items()}
if sorted(label_name_to_id.keys()) == sorted(label_list):
logger.info(
f"The configuration of the model provided the following label correspondence: {label_name_to_id}. "
"Using it!"
)
label_to_id = {i: label_name_to_id[label_list[i]] for i in range(num_labels)}
else:
logger.warning(
"Your model seems to have been trained with labels, but they don't match the dataset: ",
f"model labels: {sorted(label_name_to_id.keys())}, dataset labels: {sorted(label_list)}."
"\nIgnoring the model labels as a result.",
)
elif data_args.task_name is None:
label_to_id = {v: i for i, v in enumerate(label_list)}
def preprocess_function(examples):
# Tokenize the texts
texts = (
(examples[sentence1_key],) if sentence2_key is None else (examples[sentence1_key], examples[sentence2_key])
)
result = tokenizer(*texts, padding="max_length", max_length=data_args.max_seq_length, truncation=True)
if "label" in examples:
if label_to_id is not None:
# Map labels to IDs (not necessary for GLUE tasks)
result["labels"] = [label_to_id[l] for l in examples["label"]]
else:
# In all cases, rename the column to labels because the model will expect that.
result["labels"] = examples["label"]
return result
processed_datasets = raw_datasets.map(
preprocess_function, batched=True, remove_columns=raw_datasets["train"].column_names
)
train_dataset = processed_datasets["train"]
eval_dataset = processed_datasets["validation_matched" if data_args.task_name == "mnli" else "validation"]
# Log a few random samples from the training set:
for index in random.sample(range(len(train_dataset)), 3):
logger.info(f"Sample {index} of the training set: {train_dataset[index]}.")
# Define a summary writer
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(training_args.output_dir)
summary_writer.hparams({**training_args.to_dict(), **vars(model_args), **vars(data_args)})
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
num_epochs = int(training_args.num_train_epochs)
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
train_batch_size = int(training_args.per_device_train_batch_size) * jax.local_device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.device_count()
learning_rate_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
state = create_train_state(
model, learning_rate_fn, is_regression, num_labels=num_labels, weight_decay=training_args.weight_decay
)
# define step functions
def train_step(
state: train_state.TrainState, batch: Dict[str, Array], dropout_rng: PRNGKey
) -> Tuple[train_state.TrainState, float]:
"""Trains model with an optimizer (both in `state`) on `batch`, returning a pair `(new_state, loss)`."""
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
targets = batch.pop("labels")
def loss_fn(params):
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)[0]
loss = state.loss_fn(logits, targets)
return loss
grad_fn = jax.value_and_grad(loss_fn)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad)
metrics = jax.lax.pmean({"loss": loss, "learning_rate": learning_rate_fn(state.step)}, axis_name="batch")
return new_state, metrics, new_dropout_rng
p_train_step = jax.pmap(train_step, axis_name="batch", donate_argnums=(0,))
def eval_step(state, batch):
logits = state.apply_fn(**batch, params=state.params, train=False)[0]
return state.logits_fn(logits)
p_eval_step = jax.pmap(eval_step, axis_name="batch")
if data_args.task_name is not None:
metric = evaluate.load("glue", data_args.task_name, cache_dir=model_args.cache_dir)
else:
metric = evaluate.load("accuracy", cache_dir=model_args.cache_dir)
logger.info(f"===== Starting training ({num_epochs} epochs) =====")
train_time = 0
# make sure weights are replicated on each device
state = replicate(state)
steps_per_epoch = len(train_dataset) // train_batch_size
total_steps = steps_per_epoch * num_epochs
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (0/{num_epochs})", position=0)
for epoch in epochs:
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# train
train_loader = glue_train_data_collator(input_rng, train_dataset, train_batch_size)
for step, batch in enumerate(
tqdm(
train_loader,
total=steps_per_epoch,
desc="Training...",
position=1,
),
):
state, train_metric, dropout_rngs = p_train_step(state, batch, dropout_rngs)
train_metrics.append(train_metric)
cur_step = (epoch * steps_per_epoch) + (step + 1)
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step}/{total_steps} | Training Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
train_metrics = []
if (cur_step % training_args.eval_steps == 0 or cur_step % steps_per_epoch == 0) and cur_step > 0:
# evaluate
eval_loader = glue_eval_data_collator(eval_dataset, eval_batch_size)
for batch in tqdm(
eval_loader,
total=math.ceil(len(eval_dataset) / eval_batch_size),
desc="Evaluating ...",
position=2,
):
labels = batch.pop("labels")
predictions = pad_shard_unpad(p_eval_step)(
state, batch, min_device_batch=per_device_eval_batch_size
)
metric.add_batch(predictions=np.array(predictions), references=labels)
eval_metric = metric.compute()
logger.info(f"Step... ({cur_step}/{total_steps} | Eval metrics: {eval_metric})")
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metric, cur_step)
if (cur_step % training_args.save_steps == 0 and cur_step > 0) or (cur_step == total_steps):
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(unreplicate(state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of epoch {epoch}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
epochs.desc = f"Epoch ... {epoch + 1}/{num_epochs}"
# save the eval metrics in json
if jax.process_index() == 0:
eval_metric = {f"eval_{metric_name}": value for metric_name, value in eval_metric.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metric, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/text-classification/requirements.txt | datasets >= 1.1.3
jax>=0.2.8
jaxlib>=0.1.59
flax>=0.3.5
optax>=0.0.8
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/text-classification/README.md | <!---
Copyright 2021 The Google Flax Team Authors and HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Text classification examples
## GLUE tasks
Based on the script [`run_flax_glue.py`](https://github.com/huggingface/transformers/blob/main/examples/flax/text-classification/run_flax_glue.py).
Fine-tuning the library models for sequence classification on the GLUE benchmark: [General Language Understanding
Evaluation](https://gluebenchmark.com/). This script can fine-tune any of the models on the [hub](https://huggingface.co/models) and can also be used for a
dataset hosted on our [hub](https://huggingface.co/datasets) or your own data in a csv or a JSON file (the script might need some tweaks in that case,
refer to the comments inside for help).
GLUE is made up of a total of 9 different tasks. Here is how to run the script on one of them:
```bash
export TASK_NAME=mrpc
python run_flax_glue.py \
--model_name_or_path google-bert/bert-base-cased \
--task_name ${TASK_NAME} \
--max_seq_length 128 \
--learning_rate 2e-5 \
--num_train_epochs 3 \
--per_device_train_batch_size 4 \
--eval_steps 100 \
--output_dir ./$TASK_NAME/ \
--push_to_hub
```
where task name can be one of cola, mnli, mnli_mismatched, mnli_matched, mrpc, qnli, qqp, rte, sst2, stsb, wnli.
Using the command above, the script will train for 3 epochs and run eval after each epoch.
Metrics and hyperparameters are stored in Tensorflow event files in `--output_dir`.
You can see the results by running `tensorboard` in that directory:
```bash
$ tensorboard --logdir .
```
or directly on the hub under *Training metrics*.
### Accuracy Evaluation
We train five replicas and report mean accuracy and stdev on the dev set below.
We use the settings as in the command above (with an exception for MRPC and
WNLI which are tiny and where we used 5 epochs instead of 3), and we use a total
train batch size of 32 (we train on 8 Cloud v3 TPUs, so a per-device batch size of 4),
On the task other than MRPC and WNLI we train for 3 these epochs because this is the standard,
but looking at the training curves of some of them (e.g., SST-2, STS-b), it appears the models
are undertrained and we could get better results when training longer.
In the Tensorboard results linked below, the random seed of each model is equal to the ID of the run. So in order to reproduce run 1, run the command above with `--seed=1`. The best run used random seed 3, which is the default in the script. The results of all runs are in [this Google Sheet](https://docs.google.com/spreadsheets/d/1p3XzReMO75m_XdEJvPue-PIq_PN-96J2IJpJW1yS-10/edit?usp=sharing).
| Task | Metric | Acc (best run) | Acc (avg/5runs) | Stdev | Metrics |
|-------|------------------------------|----------------|-----------------|-----------|--------------------------------------------------------------------------|
| CoLA | Matthews corr | 60.57 | 59.04 | 1.06 | [tfhub.dev](https://tensorboard.dev/experiment/lfr2adVpRtmLDALKrElkzg/) |
| SST-2 | Accuracy | 92.66 | 92.23 | 0.57 | [tfhub.dev](https://tensorboard.dev/experiment/jYvfv2trRHKMjoWnXVwrZA/) |
| MRPC | F1/Accuracy | 89.90/85.78 | 88.97/84.36 | 0.72/1.09 | [tfhub.dev](https://tensorboard.dev/experiment/bo3W3DEoRw2Q7YXjWrJkfg/) |
| STS-B | Pearson/Spearman corr. | 89.04/88.70 | 88.94/88.63 | 0.07/0.07 | [tfhub.dev](https://tensorboard.dev/experiment/fxVwbLD7QpKhbot0r9rn2w/) |
| QQP | Accuracy/F1 | 90.81/87.58 | 90.76/87.51 | 0.05/0.06 | [tfhub.dev](https://tensorboard.dev/experiment/di089Rc9TZmsnKRMrYNLsA/) |
| MNLI | Matched acc. | 84.10 | 83.80 | 0.16 | [tfhub.dev](https://tensorboard.dev/experiment/JgNCGHDJSRaW6HBx6YQFYQ/) |
| QNLI | Accuracy | 91.01 | 90.82 | 0.17 | [tfhub.dev](https://tensorboard.dev/experiment/Bq7cMGJnQMSggYgL8qNGeQ/) |
| RTE | Accuracy | 66.06 | 64.76 | 1.04 | [tfhub.dev](https://tensorboard.dev/experiment/66Eq24bhRjqN6CEhgDSGqQ/) |
| WNLI | Accuracy | 46.48 | 37.01 | 6.83 | [tfhub.dev](https://tensorboard.dev/experiment/TAqcnddqTkWvVEeGaWwIdQ/) |
Some of these results are significantly different from the ones reported on the test set of GLUE benchmark on the
website. For QQP and WNLI, please refer to [FAQ #12](https://gluebenchmark.com/faq) on the website.
### Runtime evaluation
We also ran each task once on a single V100 GPU, 8 V100 GPUs, and 8 Cloud v3 TPUs and report the
overall training time below. For comparison we ran Pytorch's [run_glue.py](https://github.com/huggingface/transformers/blob/main/examples/pytorch/text-classification/run_glue.py) on a single GPU (last column).
| Task | TPU v3-8 | 8 GPU | [1 GPU](https://tensorboard.dev/experiment/mkPS4Zh8TnGe1HB6Yzwj4Q) | 1 GPU (Pytorch) |
|-------|-----------|------------|------------|-----------------|
| CoLA | 1m 42s | 1m 26s | 3m 9s | 4m 6s |
| SST-2 | 5m 12s | 6m 28s | 22m 33s | 34m 37s |
| MRPC | 1m 29s | 1m 14s | 2m 20s | 2m 56s |
| STS-B | 1m 30s | 1m 12s | 2m 16s | 2m 48s |
| QQP | 22m 50s | 31m 48s | 1h 59m 41s | 2h 54m |
| MNLI | 25m 03s | 33m 55s | 2h 9m 37s | 3h 7m 6s |
| QNLI | 7m30s | 9m 40s | 34m 40s | 49m 8s |
| RTE | 1m 20s | 55s | 1m 10s | 1m 16s |
| WNLI | 1m 11s | 48s | 39s | 36s |
|-------|
| **TOTAL** | 1h 03m | 1h 28m | 5h 16m | 6h 37m |
*All experiments are ran on Google Cloud Platform.
GPU experiments are ran without further optimizations besides JAX
transformations. GPU experiments are ran with full precision (fp32). "TPU v3-8"
are 8 TPU cores on 4 chips (each chips has 2 cores), while "8 GPU" are 8 GPU chips.
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/question-answering/run_qa.py | #!/usr/bin/env python
# coding=utf-8
# Copyright 2021 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Fine-tuning the library models for question answering.
"""
# You can also adapt this script on your own question answering task. Pointers for this are left as comments.
import json
import logging
import math
import os
import random
import sys
import time
import warnings
from dataclasses import asdict, dataclass, field
from enum import Enum
from pathlib import Path
from typing import Any, Callable, Dict, Optional, Tuple
import datasets
import evaluate
import jax
import jax.numpy as jnp
import numpy as np
import optax
from datasets import load_dataset
from flax import struct, traverse_util
from flax.jax_utils import pad_shard_unpad, replicate, unreplicate
from flax.training import train_state
from flax.training.common_utils import get_metrics, onehot, shard
from huggingface_hub import HfApi
from tqdm import tqdm
from utils_qa import postprocess_qa_predictions
import transformers
from transformers import (
AutoConfig,
AutoTokenizer,
EvalPrediction,
FlaxAutoModelForQuestionAnswering,
HfArgumentParser,
PreTrainedTokenizerFast,
is_tensorboard_available,
)
from transformers.utils import check_min_version, send_example_telemetry
logger = logging.getLogger(__name__)
# Will error if the minimal version of Transformers is not installed. Remove at your own risks.
check_min_version("4.41.0.dev0")
Array = Any
Dataset = datasets.arrow_dataset.Dataset
PRNGKey = Any
# region Arguments
@dataclass
class TrainingArguments:
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
do_predict: bool = field(default=False, metadata={"help": "Whether to run predictions on the test set."})
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU core/CPU for evaluation."}
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
logging_steps: int = field(default=500, metadata={"help": "Log every X updates steps."})
save_steps: int = field(default=500, metadata={"help": "Save checkpoint every X updates steps."})
eval_steps: int = field(default=None, metadata={"help": "Run an evaluation every X steps."})
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
hub_model_id: str = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_token: str = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
def __post_init__(self):
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
d = asdict(self)
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
return d
@dataclass
class ModelArguments:
"""
Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
"""
model_name_or_path: str = field(
metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}
)
config_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
)
tokenizer_name: Optional[str] = field(
default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
)
cache_dir: Optional[str] = field(
default=None,
metadata={"help": "Path to directory to store the pretrained models downloaded from huggingface.co"},
)
model_revision: str = field(
default="main",
metadata={"help": "The specific model version to use (can be a branch name, tag name or commit id)."},
)
token: str = field(
default=None,
metadata={
"help": (
"The token to use as HTTP bearer authorization for remote files. If not specified, will use the token "
"generated when running `huggingface-cli login` (stored in `~/.huggingface`)."
)
},
)
use_auth_token: bool = field(
default=None,
metadata={
"help": "The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead."
},
)
trust_remote_code: bool = field(
default=False,
metadata={
"help": (
"Whether or not to allow for custom models defined on the Hub in their own modeling files. This option "
"should only be set to `True` for repositories you trust and in which you have read the code, as it will "
"execute code present on the Hub on your local machine."
)
},
)
dtype: Optional[str] = field(
default="float32",
metadata={
"help": (
"Floating-point format in which the model weights should be initialized and trained. Choose one of"
" `[float32, float16, bfloat16]`."
)
},
)
@dataclass
class DataTrainingArguments:
"""
Arguments pertaining to what data we are going to input our model for training and eval.
"""
dataset_name: Optional[str] = field(
default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
)
dataset_config_name: Optional[str] = field(
default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
)
train_file: Optional[str] = field(default=None, metadata={"help": "The input training data file (a text file)."})
validation_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input evaluation data file to evaluate the perplexity on (a text file)."},
)
test_file: Optional[str] = field(
default=None,
metadata={"help": "An optional input test data file to evaluate the perplexity on (a text file)."},
)
overwrite_cache: bool = field(
default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
)
preprocessing_num_workers: Optional[int] = field(
default=None,
metadata={"help": "The number of processes to use for the preprocessing."},
)
max_seq_length: int = field(
default=384,
metadata={
"help": (
"The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded."
)
},
)
pad_to_max_length: bool = field(
default=False,
metadata={
"help": (
"Whether to pad all samples to `max_seq_length`. If False, will pad the samples dynamically when"
" batching to the maximum length in the batch (which can be faster on GPU but will be slower on TPU)."
)
},
)
max_train_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of training examples to this "
"value if set."
)
},
)
max_eval_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of evaluation examples to this "
"value if set."
)
},
)
max_predict_samples: Optional[int] = field(
default=None,
metadata={
"help": (
"For debugging purposes or quicker training, truncate the number of prediction examples to this "
"value if set."
)
},
)
version_2_with_negative: bool = field(
default=False, metadata={"help": "If true, some of the examples do not have an answer."}
)
null_score_diff_threshold: float = field(
default=0.0,
metadata={
"help": (
"The threshold used to select the null answer: if the best answer has a score that is less than "
"the score of the null answer minus this threshold, the null answer is selected for this example. "
"Only useful when `version_2_with_negative=True`."
)
},
)
doc_stride: int = field(
default=128,
metadata={"help": "When splitting up a long document into chunks, how much stride to take between chunks."},
)
n_best_size: int = field(
default=20,
metadata={"help": "The total number of n-best predictions to generate when looking for an answer."},
)
max_answer_length: int = field(
default=30,
metadata={
"help": (
"The maximum length of an answer that can be generated. This is needed because the start "
"and end predictions are not conditioned on one another."
)
},
)
def __post_init__(self):
if (
self.dataset_name is None
and self.train_file is None
and self.validation_file is None
and self.test_file is None
):
raise ValueError("Need either a dataset name or a training/validation file/test_file.")
else:
if self.train_file is not None:
extension = self.train_file.split(".")[-1]
assert extension in ["csv", "json"], "`train_file` should be a csv or a json file."
if self.validation_file is not None:
extension = self.validation_file.split(".")[-1]
assert extension in ["csv", "json"], "`validation_file` should be a csv or a json file."
if self.test_file is not None:
extension = self.test_file.split(".")[-1]
assert extension in ["csv", "json"], "`test_file` should be a csv or a json file."
# endregion
# region Create a train state
def create_train_state(
model: FlaxAutoModelForQuestionAnswering,
learning_rate_fn: Callable[[int], float],
num_labels: int,
training_args: TrainingArguments,
) -> train_state.TrainState:
"""Create initial training state."""
class TrainState(train_state.TrainState):
"""Train state with an Optax optimizer.
The two functions below differ depending on whether the task is classification
or regression.
Args:
logits_fn: Applied to last layer to obtain the logits.
loss_fn: Function to compute the loss.
"""
logits_fn: Callable = struct.field(pytree_node=False)
loss_fn: Callable = struct.field(pytree_node=False)
# We use Optax's "masking" functionality to not apply weight decay
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
# mask boolean with the same structure as the parameters.
# The mask is True for parameters that should be decayed.
def decay_mask_fn(params):
flat_params = traverse_util.flatten_dict(params)
# find out all LayerNorm parameters
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
layer_norm_named_params = {
layer[-2:]
for layer_norm_name in layer_norm_candidates
for layer in flat_params.keys()
if layer_norm_name in "".join(layer).lower()
}
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
return traverse_util.unflatten_dict(flat_mask)
tx = optax.adamw(
learning_rate=learning_rate_fn,
b1=training_args.adam_beta1,
b2=training_args.adam_beta2,
eps=training_args.adam_epsilon,
weight_decay=training_args.weight_decay,
mask=decay_mask_fn,
)
def cross_entropy_loss(logits, labels):
start_loss = optax.softmax_cross_entropy(logits[0], onehot(labels[0], num_classes=num_labels))
end_loss = optax.softmax_cross_entropy(logits[1], onehot(labels[1], num_classes=num_labels))
xentropy = (start_loss + end_loss) / 2.0
return jnp.mean(xentropy)
return TrainState.create(
apply_fn=model.__call__,
params=model.params,
tx=tx,
logits_fn=lambda logits: logits,
loss_fn=cross_entropy_loss,
)
# endregion
# region Create learning rate function
def create_learning_rate_fn(
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
) -> Callable[[int], jnp.ndarray]:
"""Returns a linear warmup, linear_decay learning rate function."""
steps_per_epoch = train_ds_size // train_batch_size
num_train_steps = steps_per_epoch * num_train_epochs
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
decay_fn = optax.linear_schedule(
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
)
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
return schedule_fn
# endregion
# region train data iterator
def train_data_collator(rng: PRNGKey, dataset: Dataset, batch_size: int):
"""Returns shuffled batches of size `batch_size` from truncated `train dataset`, sharded over all local devices."""
steps_per_epoch = len(dataset) // batch_size
perms = jax.random.permutation(rng, len(dataset))
perms = perms[: steps_per_epoch * batch_size] # Skip incomplete batch.
perms = perms.reshape((steps_per_epoch, batch_size))
for perm in perms:
batch = dataset[perm]
batch = {k: np.array(v) for k, v in batch.items()}
batch = shard(batch)
yield batch
# endregion
# region eval data iterator
def eval_data_collator(dataset: Dataset, batch_size: int):
"""Returns batches of size `batch_size` from `eval dataset`. Sharding handled by `pad_shard_unpad` in the eval loop."""
batch_idx = np.arange(len(dataset))
steps_per_epoch = math.ceil(len(dataset) / batch_size)
batch_idx = np.array_split(batch_idx, steps_per_epoch)
for idx in batch_idx:
batch = dataset[idx]
batch = {k: np.array(v) for k, v in batch.items()}
yield batch
# endregion
def main():
# region Argument parsing
# See all possible arguments in src/transformers/training_args.py
# or by passing the --help flag to this script.
# We now keep distinct sets of args, for a cleaner separation of concerns.
parser = HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments))
if len(sys.argv) == 2 and sys.argv[1].endswith(".json"):
# If we pass only one argument to the script and it's the path to a json file,
# let's parse it to get our arguments.
model_args, data_args, training_args = parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]))
else:
model_args, data_args, training_args = parser.parse_args_into_dataclasses()
if model_args.use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v4.34. Please use `token` instead.",
FutureWarning,
)
if model_args.token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
model_args.token = model_args.use_auth_token
# Sending telemetry. Tracking the example usage helps us better allocate resources to maintain them. The
# information sent is the one passed as arguments along with your Python/PyTorch versions.
send_example_telemetry("run_qa", model_args, data_args, framework="flax")
# endregion
# region Logging
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%m/%d/%Y %H:%M:%S",
level=logging.INFO,
)
# Setup logging, we only want one process per machine to log things on the screen.
logger.setLevel(logging.INFO if jax.process_index() == 0 else logging.ERROR)
if jax.process_index() == 0:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
# endregion
# Handle the repository creation
if training_args.push_to_hub:
# Retrieve of infer repo_name
repo_name = training_args.hub_model_id
if repo_name is None:
repo_name = Path(training_args.output_dir).absolute().name
# Create repo and retrieve repo_id
api = HfApi()
repo_id = api.create_repo(repo_name, exist_ok=True, token=training_args.hub_token).repo_id
# region Load Data
# Get the datasets: you can either provide your own CSV/JSON/TXT training and evaluation files (see below)
# or just provide the name of one of the public datasets available on the hub at https://huggingface.co/datasets/
# (the dataset will be downloaded automatically from the datasets Hub).
#
# For CSV/JSON files, this script will use the column called 'text' or the first column if no column called
# 'text' is found. You can easily tweak this behavior (see below).
#
# In distributed training, the load_dataset function guarantee that only one local process can concurrently
# download the dataset.
if data_args.dataset_name is not None:
# Downloading and loading a dataset from the hub.
raw_datasets = load_dataset(
data_args.dataset_name,
data_args.dataset_config_name,
cache_dir=model_args.cache_dir,
token=model_args.token,
)
else:
# Loading the dataset from local csv or json file.
data_files = {}
if data_args.train_file is not None:
data_files["train"] = data_args.train_file
extension = data_args.train_file.split(".")[-1]
if data_args.validation_file is not None:
data_files["validation"] = data_args.validation_file
extension = data_args.validation_file.split(".")[-1]
if data_args.test_file is not None:
data_files["test"] = data_args.test_file
extension = data_args.test_file.split(".")[-1]
raw_datasets = load_dataset(
extension,
data_files=data_files,
field="data",
cache_dir=model_args.cache_dir,
token=model_args.token,
)
# See more about loading any type of standard or custom dataset (from files, python dict, pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.
# endregion
# region Load pretrained model and tokenizer
#
# Load pretrained model and tokenizer
config = AutoConfig.from_pretrained(
model_args.config_name if model_args.config_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
tokenizer = AutoTokenizer.from_pretrained(
model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path,
cache_dir=model_args.cache_dir,
use_fast=True,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
)
# endregion
# region Tokenizer check: this script requires a fast tokenizer.
if not isinstance(tokenizer, PreTrainedTokenizerFast):
raise ValueError(
"This example script only works for models that have a fast tokenizer. Checkout the big table of models at"
" https://huggingface.co/transformers/index.html#supported-frameworks to find the model types that meet"
" this requirement"
)
# endregion
# region Preprocessing the datasets
# Preprocessing is slightly different for training and evaluation.
if training_args.do_train:
column_names = raw_datasets["train"].column_names
elif training_args.do_eval:
column_names = raw_datasets["validation"].column_names
else:
column_names = raw_datasets["test"].column_names
question_column_name = "question" if "question" in column_names else column_names[0]
context_column_name = "context" if "context" in column_names else column_names[1]
answer_column_name = "answers" if "answers" in column_names else column_names[2]
# Padding side determines if we do (question|context) or (context|question).
pad_on_right = tokenizer.padding_side == "right"
if data_args.max_seq_length > tokenizer.model_max_length:
logger.warning(
f"The max_seq_length passed ({data_args.max_seq_length}) is larger than the maximum length for the "
f"model ({tokenizer.model_max_length}). Using max_seq_length={tokenizer.model_max_length}."
)
max_seq_length = min(data_args.max_seq_length, tokenizer.model_max_length)
# Training preprocessing
def prepare_train_features(examples):
# Some of the questions have lots of whitespace on the left, which is not useful and will make the
# truncation of the context fail (the tokenized question will take a lots of space). So we remove that
# left whitespace
examples[question_column_name] = [q.lstrip() for q in examples[question_column_name]]
# Tokenize our examples with truncation and maybe padding, but keep the overflows using a stride. This results
# in one example possible giving several features when a context is long, each of those features having a
# context that overlaps a bit the context of the previous feature.
tokenized_examples = tokenizer(
examples[question_column_name if pad_on_right else context_column_name],
examples[context_column_name if pad_on_right else question_column_name],
truncation="only_second" if pad_on_right else "only_first",
max_length=max_seq_length,
stride=data_args.doc_stride,
return_overflowing_tokens=True,
return_offsets_mapping=True,
padding="max_length",
)
# Since one example might give us several features if it has a long context, we need a map from a feature to
# its corresponding example. This key gives us just that.
sample_mapping = tokenized_examples.pop("overflow_to_sample_mapping")
# The offset mappings will give us a map from token to character position in the original context. This will
# help us compute the start_positions and end_positions.
offset_mapping = tokenized_examples.pop("offset_mapping")
# Let's label those examples!
tokenized_examples["start_positions"] = []
tokenized_examples["end_positions"] = []
for i, offsets in enumerate(offset_mapping):
# We will label impossible answers with the index of the CLS token.
input_ids = tokenized_examples["input_ids"][i]
cls_index = input_ids.index(tokenizer.cls_token_id)
# Grab the sequence corresponding to that example (to know what is the context and what is the question).
sequence_ids = tokenized_examples.sequence_ids(i)
# One example can give several spans, this is the index of the example containing this span of text.
sample_index = sample_mapping[i]
answers = examples[answer_column_name][sample_index]
# If no answers are given, set the cls_index as answer.
if len(answers["answer_start"]) == 0:
tokenized_examples["start_positions"].append(cls_index)
tokenized_examples["end_positions"].append(cls_index)
else:
# Start/end character index of the answer in the text.
start_char = answers["answer_start"][0]
end_char = start_char + len(answers["text"][0])
# Start token index of the current span in the text.
token_start_index = 0
while sequence_ids[token_start_index] != (1 if pad_on_right else 0):
token_start_index += 1
# End token index of the current span in the text.
token_end_index = len(input_ids) - 1
while sequence_ids[token_end_index] != (1 if pad_on_right else 0):
token_end_index -= 1
# Detect if the answer is out of the span (in which case this feature is labeled with the CLS index).
if not (offsets[token_start_index][0] <= start_char and offsets[token_end_index][1] >= end_char):
tokenized_examples["start_positions"].append(cls_index)
tokenized_examples["end_positions"].append(cls_index)
else:
# Otherwise move the token_start_index and token_end_index to the two ends of the answer.
# Note: we could go after the last offset if the answer is the last word (edge case).
while token_start_index < len(offsets) and offsets[token_start_index][0] <= start_char:
token_start_index += 1
tokenized_examples["start_positions"].append(token_start_index - 1)
while offsets[token_end_index][1] >= end_char:
token_end_index -= 1
tokenized_examples["end_positions"].append(token_end_index + 1)
return tokenized_examples
processed_raw_datasets = {}
if training_args.do_train:
if "train" not in raw_datasets:
raise ValueError("--do_train requires a train dataset")
train_dataset = raw_datasets["train"]
if data_args.max_train_samples is not None:
# We will select sample from whole data if argument is specified
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
# Create train feature from dataset
train_dataset = train_dataset.map(
prepare_train_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_train_samples is not None:
# Number of samples might increase during Feature Creation, We select only specified max samples
max_train_samples = min(len(train_dataset), data_args.max_train_samples)
train_dataset = train_dataset.select(range(max_train_samples))
processed_raw_datasets["train"] = train_dataset
# Validation preprocessing
def prepare_validation_features(examples):
# Some of the questions have lots of whitespace on the left, which is not useful and will make the
# truncation of the context fail (the tokenized question will take a lots of space). So we remove that
# left whitespace
examples[question_column_name] = [q.lstrip() for q in examples[question_column_name]]
# Tokenize our examples with truncation and maybe padding, but keep the overflows using a stride. This results
# in one example possible giving several features when a context is long, each of those features having a
# context that overlaps a bit the context of the previous feature.
tokenized_examples = tokenizer(
examples[question_column_name if pad_on_right else context_column_name],
examples[context_column_name if pad_on_right else question_column_name],
truncation="only_second" if pad_on_right else "only_first",
max_length=max_seq_length,
stride=data_args.doc_stride,
return_overflowing_tokens=True,
return_offsets_mapping=True,
padding="max_length",
)
# Since one example might give us several features if it has a long context, we need a map from a feature to
# its corresponding example. This key gives us just that.
sample_mapping = tokenized_examples.pop("overflow_to_sample_mapping")
# For evaluation, we will need to convert our predictions to substrings of the context, so we keep the
# corresponding example_id and we will store the offset mappings.
tokenized_examples["example_id"] = []
for i in range(len(tokenized_examples["input_ids"])):
# Grab the sequence corresponding to that example (to know what is the context and what is the question).
sequence_ids = tokenized_examples.sequence_ids(i)
context_index = 1 if pad_on_right else 0
# One example can give several spans, this is the index of the example containing this span of text.
sample_index = sample_mapping[i]
tokenized_examples["example_id"].append(examples["id"][sample_index])
# Set to None the offset_mapping that are not part of the context so it's easy to determine if a token
# position is part of the context or not.
tokenized_examples["offset_mapping"][i] = [
(o if sequence_ids[k] == context_index else None)
for k, o in enumerate(tokenized_examples["offset_mapping"][i])
]
return tokenized_examples
if training_args.do_eval:
if "validation" not in raw_datasets:
raise ValueError("--do_eval requires a validation dataset")
eval_examples = raw_datasets["validation"]
if data_args.max_eval_samples is not None:
# We will select sample from whole data
max_eval_samples = min(len(eval_examples), data_args.max_eval_samples)
eval_examples = eval_examples.select(range(max_eval_samples))
# Validation Feature Creation
eval_dataset = eval_examples.map(
prepare_validation_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_eval_samples is not None:
# During Feature creation dataset samples might increase, we will select required samples again
max_eval_samples = min(len(eval_dataset), data_args.max_eval_samples)
eval_dataset = eval_dataset.select(range(max_eval_samples))
processed_raw_datasets["validation"] = eval_dataset
if training_args.do_predict:
if "test" not in raw_datasets:
raise ValueError("--do_predict requires a test dataset")
predict_examples = raw_datasets["test"]
if data_args.max_predict_samples is not None:
# We will select sample from whole data
predict_examples = predict_examples.select(range(data_args.max_predict_samples))
# Predict Feature Creation
predict_dataset = predict_examples.map(
prepare_validation_features,
batched=True,
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
load_from_cache_file=not data_args.overwrite_cache,
)
if data_args.max_predict_samples is not None:
# During Feature creation dataset samples might increase, we will select required samples again
max_predict_samples = min(len(predict_dataset), data_args.max_predict_samples)
predict_dataset = predict_dataset.select(range(max_predict_samples))
processed_raw_datasets["test"] = predict_dataset
# endregion
# region Metrics and Post-processing:
def post_processing_function(examples, features, predictions, stage="eval"):
# Post-processing: we match the start logits and end logits to answers in the original context.
predictions = postprocess_qa_predictions(
examples=examples,
features=features,
predictions=predictions,
version_2_with_negative=data_args.version_2_with_negative,
n_best_size=data_args.n_best_size,
max_answer_length=data_args.max_answer_length,
null_score_diff_threshold=data_args.null_score_diff_threshold,
output_dir=training_args.output_dir,
prefix=stage,
)
# Format the result to the format the metric expects.
if data_args.version_2_with_negative:
formatted_predictions = [
{"id": k, "prediction_text": v, "no_answer_probability": 0.0} for k, v in predictions.items()
]
else:
formatted_predictions = [{"id": k, "prediction_text": v} for k, v in predictions.items()]
references = [{"id": ex["id"], "answers": ex[answer_column_name]} for ex in examples]
return EvalPrediction(predictions=formatted_predictions, label_ids=references)
metric = evaluate.load(
"squad_v2" if data_args.version_2_with_negative else "squad", cache_dir=model_args.cache_dir
)
def compute_metrics(p: EvalPrediction):
return metric.compute(predictions=p.predictions, references=p.label_ids)
# Create and fill numpy array of size len_of_validation_data * max_length_of_output_tensor
def create_and_fill_np_array(start_or_end_logits, dataset, max_len):
"""
Create and fill numpy array of size len_of_validation_data * max_length_of_output_tensor
Args:
start_or_end_logits(:obj:`tensor`):
This is the output predictions of the model. We can only enter either start or end logits.
eval_dataset: Evaluation dataset
max_len(:obj:`int`):
The maximum length of the output tensor. ( See the model.eval() part for more details )
"""
step = 0
# create a numpy array and fill it with -100.
logits_concat = np.full((len(dataset), max_len), -100, dtype=np.float64)
# Now since we have create an array now we will populate it with the outputs of the model.
for i, output_logit in enumerate(start_or_end_logits): # populate columns
# We have to fill it such that we have to take the whole tensor and replace it on the newly created array
# And after every iteration we have to change the step
batch_size = output_logit.shape[0]
cols = output_logit.shape[1]
if step + batch_size < len(dataset):
logits_concat[step : step + batch_size, :cols] = output_logit
else:
logits_concat[step:, :cols] = output_logit[: len(dataset) - step]
step += batch_size
return logits_concat
# endregion
# region Training steps and logging init
train_dataset = processed_raw_datasets["train"]
eval_dataset = processed_raw_datasets["validation"]
# Log a few random samples from the training set:
for index in random.sample(range(len(train_dataset)), 3):
logger.info(f"Sample {index} of the training set: {train_dataset[index]}.")
# Define a summary writer
has_tensorboard = is_tensorboard_available()
if has_tensorboard and jax.process_index() == 0:
try:
from flax.metrics.tensorboard import SummaryWriter
summary_writer = SummaryWriter(training_args.output_dir)
summary_writer.hparams({**training_args.to_dict(), **vars(model_args), **vars(data_args)})
except ImportError as ie:
has_tensorboard = False
logger.warning(
f"Unable to display metrics through TensorBoard because some package are not installed: {ie}"
)
else:
logger.warning(
"Unable to display metrics through TensorBoard because the package is not installed: "
"Please run pip install tensorboard to enable."
)
def write_train_metric(summary_writer, train_metrics, train_time, step):
summary_writer.scalar("train_time", train_time, step)
train_metrics = get_metrics(train_metrics)
for key, vals in train_metrics.items():
tag = f"train_{key}"
for i, val in enumerate(vals):
summary_writer.scalar(tag, val, step - len(vals) + i + 1)
def write_eval_metric(summary_writer, eval_metrics, step):
for metric_name, value in eval_metrics.items():
summary_writer.scalar(f"eval_{metric_name}", value, step)
num_epochs = int(training_args.num_train_epochs)
rng = jax.random.PRNGKey(training_args.seed)
dropout_rngs = jax.random.split(rng, jax.local_device_count())
train_batch_size = int(training_args.per_device_train_batch_size) * jax.local_device_count()
per_device_eval_batch_size = int(training_args.per_device_eval_batch_size)
eval_batch_size = per_device_eval_batch_size * jax.local_device_count()
# endregion
# region Load model
model = FlaxAutoModelForQuestionAnswering.from_pretrained(
model_args.model_name_or_path,
config=config,
cache_dir=model_args.cache_dir,
revision=model_args.model_revision,
token=model_args.token,
trust_remote_code=model_args.trust_remote_code,
seed=training_args.seed,
dtype=getattr(jnp, model_args.dtype),
)
learning_rate_fn = create_learning_rate_fn(
len(train_dataset),
train_batch_size,
training_args.num_train_epochs,
training_args.warmup_steps,
training_args.learning_rate,
)
state = create_train_state(model, learning_rate_fn, num_labels=max_seq_length, training_args=training_args)
# endregion
# region Define train step functions
def train_step(
state: train_state.TrainState, batch: Dict[str, Array], dropout_rng: PRNGKey
) -> Tuple[train_state.TrainState, float]:
"""Trains model with an optimizer (both in `state`) on `batch`, returning a pair `(new_state, loss)`."""
dropout_rng, new_dropout_rng = jax.random.split(dropout_rng)
start_positions = batch.pop("start_positions")
end_positions = batch.pop("end_positions")
targets = (start_positions, end_positions)
def loss_fn(params):
logits = state.apply_fn(**batch, params=params, dropout_rng=dropout_rng, train=True)
loss = state.loss_fn(logits, targets)
return loss
grad_fn = jax.value_and_grad(loss_fn)
loss, grad = grad_fn(state.params)
grad = jax.lax.pmean(grad, "batch")
new_state = state.apply_gradients(grads=grad)
metrics = jax.lax.pmean({"loss": loss, "learning_rate": learning_rate_fn(state.step)}, axis_name="batch")
return new_state, metrics, new_dropout_rng
p_train_step = jax.pmap(train_step, axis_name="batch", donate_argnums=(0,))
# endregion
# region Define eval step functions
def eval_step(state, batch):
logits = state.apply_fn(**batch, params=state.params, train=False)
return state.logits_fn(logits)
p_eval_step = jax.pmap(eval_step, axis_name="batch")
# endregion
# region Define train and eval loop
logger.info(f"===== Starting training ({num_epochs} epochs) =====")
train_time = 0
# make sure weights are replicated on each device
state = replicate(state)
train_time = 0
step_per_epoch = len(train_dataset) // train_batch_size
total_steps = step_per_epoch * num_epochs
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
for epoch in epochs:
train_start = time.time()
train_metrics = []
# Create sampling rng
rng, input_rng = jax.random.split(rng)
# train
for step, batch in enumerate(
tqdm(
train_data_collator(input_rng, train_dataset, train_batch_size),
total=step_per_epoch,
desc="Training...",
position=1,
),
1,
):
state, train_metric, dropout_rngs = p_train_step(state, batch, dropout_rngs)
train_metrics.append(train_metric)
cur_step = epoch * step_per_epoch + step
if cur_step % training_args.logging_steps == 0 and cur_step > 0:
# Save metrics
train_metric = unreplicate(train_metric)
train_time += time.time() - train_start
if has_tensorboard and jax.process_index() == 0:
write_train_metric(summary_writer, train_metrics, train_time, cur_step)
epochs.write(
f"Step... ({cur_step}/{total_steps} | Training Loss: {train_metric['loss']}, Learning Rate:"
f" {train_metric['learning_rate']})"
)
train_metrics = []
if (
training_args.do_eval
and (cur_step % training_args.eval_steps == 0 or cur_step % step_per_epoch == 0)
and cur_step > 0
):
eval_metrics = {}
all_start_logits = []
all_end_logits = []
# evaluate
for batch in tqdm(
eval_data_collator(eval_dataset, eval_batch_size),
total=math.ceil(len(eval_dataset) / eval_batch_size),
desc="Evaluating ...",
position=2,
):
_ = batch.pop("example_id")
_ = batch.pop("offset_mapping")
predictions = pad_shard_unpad(p_eval_step)(
state, batch, min_device_batch=per_device_eval_batch_size
)
start_logits = np.array(predictions[0])
end_logits = np.array(predictions[1])
all_start_logits.append(start_logits)
all_end_logits.append(end_logits)
max_len = max([x.shape[1] for x in all_start_logits]) # Get the max_length of the tensor
# concatenate the numpy array
start_logits_concat = create_and_fill_np_array(all_start_logits, eval_dataset, max_len)
end_logits_concat = create_and_fill_np_array(all_end_logits, eval_dataset, max_len)
# delete the list of numpy arrays
del all_start_logits
del all_end_logits
outputs_numpy = (start_logits_concat, end_logits_concat)
prediction = post_processing_function(eval_examples, eval_dataset, outputs_numpy)
eval_metrics = compute_metrics(prediction)
logger.info(f"Step... ({cur_step}/{total_steps} | Evaluation metrics: {eval_metrics})")
if has_tensorboard and jax.process_index() == 0:
write_eval_metric(summary_writer, eval_metrics, cur_step)
if (cur_step % training_args.save_steps == 0 and cur_step > 0) or (cur_step == total_steps):
# save checkpoint after each epoch and push checkpoint to the hub
if jax.process_index() == 0:
params = jax.device_get(unreplicate(state.params))
model.save_pretrained(training_args.output_dir, params=params)
tokenizer.save_pretrained(training_args.output_dir)
if training_args.push_to_hub:
api.upload_folder(
commit_message=f"Saving weights and logs of step {cur_step}",
folder_path=training_args.output_dir,
repo_id=repo_id,
repo_type="model",
token=training_args.hub_token,
)
epochs.desc = f"Epoch ... {epoch + 1}/{num_epochs}"
# endregion
# Eval after training
if training_args.do_eval:
eval_metrics = {}
all_start_logits = []
all_end_logits = []
eval_loader = eval_data_collator(eval_dataset, eval_batch_size)
for batch in tqdm(
eval_loader, total=math.ceil(len(eval_dataset) / eval_batch_size), desc="Evaluating ...", position=2
):
_ = batch.pop("example_id")
_ = batch.pop("offset_mapping")
predictions = pad_shard_unpad(p_eval_step)(state, batch, min_device_batch=per_device_eval_batch_size)
start_logits = np.array(predictions[0])
end_logits = np.array(predictions[1])
all_start_logits.append(start_logits)
all_end_logits.append(end_logits)
max_len = max([x.shape[1] for x in all_start_logits]) # Get the max_length of the tensor
# concatenate the numpy array
start_logits_concat = create_and_fill_np_array(all_start_logits, eval_dataset, max_len)
end_logits_concat = create_and_fill_np_array(all_end_logits, eval_dataset, max_len)
# delete the list of numpy arrays
del all_start_logits
del all_end_logits
outputs_numpy = (start_logits_concat, end_logits_concat)
prediction = post_processing_function(eval_examples, eval_dataset, outputs_numpy)
eval_metrics = compute_metrics(prediction)
if jax.process_index() == 0:
eval_metrics = {f"eval_{metric_name}": value for metric_name, value in eval_metrics.items()}
path = os.path.join(training_args.output_dir, "eval_results.json")
with open(path, "w") as f:
json.dump(eval_metrics, f, indent=4, sort_keys=True)
if __name__ == "__main__":
main()
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/question-answering/requirements.txt | datasets >= 1.8.0
jax>=0.2.17
jaxlib>=0.1.68
flax>=0.3.5
optax>=0.0.8 | 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/question-answering/README.md | <!---
Copyright 2021 The Google Flax Team Authors and HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
# Question Answering examples
Based on the script [`run_qa.py`](https://github.com/huggingface/transformers/blob/main/examples/flax/question-answering/run_qa.py).
**Note:** This script only works with models that have a fast tokenizer (backed by the 🤗 Tokenizers library) as it
uses special features of those tokenizers. You can check if your favorite model has a fast tokenizer in
[this table](https://huggingface.co/transformers/index.html#supported-frameworks), if it doesn't you can still use the old version
of the script.
The following example fine-tunes BERT on SQuAD:
```bash
python run_qa.py \
--model_name_or_path google-bert/bert-base-uncased \
--dataset_name squad \
--do_train \
--do_eval \
--max_seq_length 384 \
--doc_stride 128 \
--learning_rate 3e-5 \
--num_train_epochs 2 \
--per_device_train_batch_size 12 \
--output_dir ./bert-qa-squad \
--eval_steps 1000 \
--push_to_hub
```
Using the command above, the script will train for 2 epochs and run eval after each epoch.
Metrics and hyperparameters are stored in Tensorflow event files in `--output_dir`.
You can see the results by running `tensorboard` in that directory:
```bash
$ tensorboard --logdir .
```
or directly on the hub under *Training metrics*.
Training with the previously defined hyper-parameters yields the following results:
```bash
f1 = 88.62
exact_match = 81.34
```
sample Metrics - [tfhub.dev](https://tensorboard.dev/experiment/6gU75Hx8TGCnc6tr4ZgI9Q)
Here is an example training on 4 TITAN RTX GPUs and Bert Whole Word Masking uncased model to reach a F1 > 93 on SQuAD1.1:
```bash
export CUDA_VISIBLE_DEVICES=0,1,2,3
python run_qa.py \
--model_name_or_path google-bert/bert-large-uncased-whole-word-masking \
--dataset_name squad \
--do_train \
--do_eval \
--per_device_train_batch_size 6 \
--learning_rate 3e-5 \
--num_train_epochs 2 \
--max_seq_length 384 \
--doc_stride 128 \
--output_dir ./wwm_uncased_finetuned_squad/ \
--eval_steps 1000 \
--push_to_hub
```
Training with the previously defined hyper-parameters yields the following results:
```bash
f1 = 93.31
exact_match = 87.04
```
### Usage notes
Note that when contexts are long they may be split into multiple training cases, not all of which may contain
the answer span.
As-is, the example script will train on SQuAD or any other question-answering dataset formatted the same way, and can handle user
inputs as well.
### Memory usage and data loading
One thing to note is that all data is loaded into memory in this script. Most question answering datasets are small
enough that this is not an issue, but if you have a very large dataset you will need to modify the script to handle
data streaming.
| 0 |
mavonic_private_repos/transformers/examples/flax | mavonic_private_repos/transformers/examples/flax/question-answering/utils_qa.py | # coding=utf-8
# Copyright 2020 The HuggingFace Team All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Post-processing utilities for question answering.
"""
import collections
import json
import logging
import os
from typing import Optional, Tuple
import numpy as np
from tqdm.auto import tqdm
logger = logging.getLogger(__name__)
def postprocess_qa_predictions(
examples,
features,
predictions: Tuple[np.ndarray, np.ndarray],
version_2_with_negative: bool = False,
n_best_size: int = 20,
max_answer_length: int = 30,
null_score_diff_threshold: float = 0.0,
output_dir: Optional[str] = None,
prefix: Optional[str] = None,
log_level: Optional[int] = logging.WARNING,
):
"""
Post-processes the predictions of a question-answering model to convert them to answers that are substrings of the
original contexts. This is the base postprocessing functions for models that only return start and end logits.
Args:
examples: The non-preprocessed dataset (see the main script for more information).
features: The processed dataset (see the main script for more information).
predictions (:obj:`Tuple[np.ndarray, np.ndarray]`):
The predictions of the model: two arrays containing the start logits and the end logits respectively. Its
first dimension must match the number of elements of :obj:`features`.
version_2_with_negative (:obj:`bool`, `optional`, defaults to :obj:`False`):
Whether or not the underlying dataset contains examples with no answers.
n_best_size (:obj:`int`, `optional`, defaults to 20):
The total number of n-best predictions to generate when looking for an answer.
max_answer_length (:obj:`int`, `optional`, defaults to 30):
The maximum length of an answer that can be generated. This is needed because the start and end predictions
are not conditioned on one another.
null_score_diff_threshold (:obj:`float`, `optional`, defaults to 0):
The threshold used to select the null answer: if the best answer has a score that is less than the score of
the null answer minus this threshold, the null answer is selected for this example (note that the score of
the null answer for an example giving several features is the minimum of the scores for the null answer on
each feature: all features must be aligned on the fact they `want` to predict a null answer).
Only useful when :obj:`version_2_with_negative` is :obj:`True`.
output_dir (:obj:`str`, `optional`):
If provided, the dictionaries of predictions, n_best predictions (with their scores and logits) and, if
:obj:`version_2_with_negative=True`, the dictionary of the scores differences between best and null
answers, are saved in `output_dir`.
prefix (:obj:`str`, `optional`):
If provided, the dictionaries mentioned above are saved with `prefix` added to their names.
log_level (:obj:`int`, `optional`, defaults to ``logging.WARNING``):
``logging`` log level (e.g., ``logging.WARNING``)
"""
if len(predictions) != 2:
raise ValueError("`predictions` should be a tuple with two elements (start_logits, end_logits).")
all_start_logits, all_end_logits = predictions
if len(predictions[0]) != len(features):
raise ValueError(f"Got {len(predictions[0])} predictions and {len(features)} features.")
# Build a map example to its corresponding features.
example_id_to_index = {k: i for i, k in enumerate(examples["id"])}
features_per_example = collections.defaultdict(list)
for i, feature in enumerate(features):
features_per_example[example_id_to_index[feature["example_id"]]].append(i)
# The dictionaries we have to fill.
all_predictions = collections.OrderedDict()
all_nbest_json = collections.OrderedDict()
if version_2_with_negative:
scores_diff_json = collections.OrderedDict()
# Logging.
logger.setLevel(log_level)
logger.info(f"Post-processing {len(examples)} example predictions split into {len(features)} features.")
# Let's loop over all the examples!
for example_index, example in enumerate(tqdm(examples)):
# Those are the indices of the features associated to the current example.
feature_indices = features_per_example[example_index]
min_null_prediction = None
prelim_predictions = []
# Looping through all the features associated to the current example.
for feature_index in feature_indices:
# We grab the predictions of the model for this feature.
start_logits = all_start_logits[feature_index]
end_logits = all_end_logits[feature_index]
# This is what will allow us to map some the positions in our logits to span of texts in the original
# context.
offset_mapping = features[feature_index]["offset_mapping"]
# Optional `token_is_max_context`, if provided we will remove answers that do not have the maximum context
# available in the current feature.
token_is_max_context = features[feature_index].get("token_is_max_context", None)
# Update minimum null prediction.
feature_null_score = start_logits[0] + end_logits[0]
if min_null_prediction is None or min_null_prediction["score"] > feature_null_score:
min_null_prediction = {
"offsets": (0, 0),
"score": feature_null_score,
"start_logit": start_logits[0],
"end_logit": end_logits[0],
}
# Go through all possibilities for the `n_best_size` greater start and end logits.
start_indexes = np.argsort(start_logits)[-1 : -n_best_size - 1 : -1].tolist()
end_indexes = np.argsort(end_logits)[-1 : -n_best_size - 1 : -1].tolist()
for start_index in start_indexes:
for end_index in end_indexes:
# Don't consider out-of-scope answers, either because the indices are out of bounds or correspond
# to part of the input_ids that are not in the context.
if (
start_index >= len(offset_mapping)
or end_index >= len(offset_mapping)
or offset_mapping[start_index] is None
or len(offset_mapping[start_index]) < 2
or offset_mapping[end_index] is None
or len(offset_mapping[end_index]) < 2
):
continue
# Don't consider answers with a length that is either < 0 or > max_answer_length.
if end_index < start_index or end_index - start_index + 1 > max_answer_length:
continue
# Don't consider answer that don't have the maximum context available (if such information is
# provided).
if token_is_max_context is not None and not token_is_max_context.get(str(start_index), False):
continue
prelim_predictions.append(
{
"offsets": (offset_mapping[start_index][0], offset_mapping[end_index][1]),
"score": start_logits[start_index] + end_logits[end_index],
"start_logit": start_logits[start_index],
"end_logit": end_logits[end_index],
}
)
if version_2_with_negative and min_null_prediction is not None:
# Add the minimum null prediction
prelim_predictions.append(min_null_prediction)
null_score = min_null_prediction["score"]
# Only keep the best `n_best_size` predictions.
predictions = sorted(prelim_predictions, key=lambda x: x["score"], reverse=True)[:n_best_size]
# Add back the minimum null prediction if it was removed because of its low score.
if (
version_2_with_negative
and min_null_prediction is not None
and not any(p["offsets"] == (0, 0) for p in predictions)
):
predictions.append(min_null_prediction)
# Use the offsets to gather the answer text in the original context.
context = example["context"]
for pred in predictions:
offsets = pred.pop("offsets")
pred["text"] = context[offsets[0] : offsets[1]]
# In the very rare edge case we have not a single non-null prediction, we create a fake prediction to avoid
# failure.
if len(predictions) == 0 or (len(predictions) == 1 and predictions[0]["text"] == ""):
predictions.insert(0, {"text": "empty", "start_logit": 0.0, "end_logit": 0.0, "score": 0.0})
# Compute the softmax of all scores (we do it with numpy to stay independent from torch/tf in this file, using
# the LogSumExp trick).
scores = np.array([pred.pop("score") for pred in predictions])
exp_scores = np.exp(scores - np.max(scores))
probs = exp_scores / exp_scores.sum()
# Include the probabilities in our predictions.
for prob, pred in zip(probs, predictions):
pred["probability"] = prob
# Pick the best prediction. If the null answer is not possible, this is easy.
if not version_2_with_negative:
all_predictions[example["id"]] = predictions[0]["text"]
else:
# Otherwise we first need to find the best non-empty prediction.
i = 0
while predictions[i]["text"] == "":
i += 1
best_non_null_pred = predictions[i]
# Then we compare to the null prediction using the threshold.
score_diff = null_score - best_non_null_pred["start_logit"] - best_non_null_pred["end_logit"]
scores_diff_json[example["id"]] = float(score_diff) # To be JSON-serializable.
if score_diff > null_score_diff_threshold:
all_predictions[example["id"]] = ""
else:
all_predictions[example["id"]] = best_non_null_pred["text"]
# Make `predictions` JSON-serializable by casting np.float back to float.
all_nbest_json[example["id"]] = [
{k: (float(v) if isinstance(v, (np.float16, np.float32, np.float64)) else v) for k, v in pred.items()}
for pred in predictions
]
# If we have an output_dir, let's save all those dicts.
if output_dir is not None:
if not os.path.isdir(output_dir):
raise EnvironmentError(f"{output_dir} is not a directory.")
prediction_file = os.path.join(
output_dir, "predictions.json" if prefix is None else f"{prefix}_predictions.json"
)
nbest_file = os.path.join(
output_dir, "nbest_predictions.json" if prefix is None else f"{prefix}_nbest_predictions.json"
)
if version_2_with_negative:
null_odds_file = os.path.join(
output_dir, "null_odds.json" if prefix is None else f"{prefix}_null_odds.json"
)
logger.info(f"Saving predictions to {prediction_file}.")
with open(prediction_file, "w") as writer:
writer.write(json.dumps(all_predictions, indent=4) + "\n")
logger.info(f"Saving nbest_preds to {nbest_file}.")
with open(nbest_file, "w") as writer:
writer.write(json.dumps(all_nbest_json, indent=4) + "\n")
if version_2_with_negative:
logger.info(f"Saving null_odds to {null_odds_file}.")
with open(null_odds_file, "w") as writer:
writer.write(json.dumps(scores_diff_json, indent=4) + "\n")
return all_predictions
def postprocess_qa_predictions_with_beam_search(
examples,
features,
predictions: Tuple[np.ndarray, np.ndarray],
version_2_with_negative: bool = False,
n_best_size: int = 20,
max_answer_length: int = 30,
start_n_top: int = 5,
end_n_top: int = 5,
output_dir: Optional[str] = None,
prefix: Optional[str] = None,
log_level: Optional[int] = logging.WARNING,
):
"""
Post-processes the predictions of a question-answering model with beam search to convert them to answers that are substrings of the
original contexts. This is the postprocessing functions for models that return start and end logits, indices, as well as
cls token predictions.
Args:
examples: The non-preprocessed dataset (see the main script for more information).
features: The processed dataset (see the main script for more information).
predictions (:obj:`Tuple[np.ndarray, np.ndarray]`):
The predictions of the model: two arrays containing the start logits and the end logits respectively. Its
first dimension must match the number of elements of :obj:`features`.
version_2_with_negative (:obj:`bool`, `optional`, defaults to :obj:`False`):
Whether or not the underlying dataset contains examples with no answers.
n_best_size (:obj:`int`, `optional`, defaults to 20):
The total number of n-best predictions to generate when looking for an answer.
max_answer_length (:obj:`int`, `optional`, defaults to 30):
The maximum length of an answer that can be generated. This is needed because the start and end predictions
are not conditioned on one another.
start_n_top (:obj:`int`, `optional`, defaults to 5):
The number of top start logits too keep when searching for the :obj:`n_best_size` predictions.
end_n_top (:obj:`int`, `optional`, defaults to 5):
The number of top end logits too keep when searching for the :obj:`n_best_size` predictions.
output_dir (:obj:`str`, `optional`):
If provided, the dictionaries of predictions, n_best predictions (with their scores and logits) and, if
:obj:`version_2_with_negative=True`, the dictionary of the scores differences between best and null
answers, are saved in `output_dir`.
prefix (:obj:`str`, `optional`):
If provided, the dictionaries mentioned above are saved with `prefix` added to their names.
log_level (:obj:`int`, `optional`, defaults to ``logging.WARNING``):
``logging`` log level (e.g., ``logging.WARNING``)
"""
if len(predictions) != 5:
raise ValueError("`predictions` should be a tuple with five elements.")
start_top_log_probs, start_top_index, end_top_log_probs, end_top_index, cls_logits = predictions
if len(predictions[0]) != len(features):
raise ValueError(f"Got {len(predictions[0])} predictions and {len(features)} features.")
# Build a map example to its corresponding features.
example_id_to_index = {k: i for i, k in enumerate(examples["id"])}
features_per_example = collections.defaultdict(list)
for i, feature in enumerate(features):
features_per_example[example_id_to_index[feature["example_id"]]].append(i)
# The dictionaries we have to fill.
all_predictions = collections.OrderedDict()
all_nbest_json = collections.OrderedDict()
scores_diff_json = collections.OrderedDict() if version_2_with_negative else None
# Logging.
logger.setLevel(log_level)
logger.info(f"Post-processing {len(examples)} example predictions split into {len(features)} features.")
# Let's loop over all the examples!
for example_index, example in enumerate(tqdm(examples)):
# Those are the indices of the features associated to the current example.
feature_indices = features_per_example[example_index]
min_null_score = None
prelim_predictions = []
# Looping through all the features associated to the current example.
for feature_index in feature_indices:
# We grab the predictions of the model for this feature.
start_log_prob = start_top_log_probs[feature_index]
start_indexes = start_top_index[feature_index]
end_log_prob = end_top_log_probs[feature_index]
end_indexes = end_top_index[feature_index]
feature_null_score = cls_logits[feature_index]
# This is what will allow us to map some the positions in our logits to span of texts in the original
# context.
offset_mapping = features[feature_index]["offset_mapping"]
# Optional `token_is_max_context`, if provided we will remove answers that do not have the maximum context
# available in the current feature.
token_is_max_context = features[feature_index].get("token_is_max_context", None)
# Update minimum null prediction
if min_null_score is None or feature_null_score < min_null_score:
min_null_score = feature_null_score
# Go through all possibilities for the `n_start_top`/`n_end_top` greater start and end logits.
for i in range(start_n_top):
for j in range(end_n_top):
start_index = int(start_indexes[i])
j_index = i * end_n_top + j
end_index = int(end_indexes[j_index])
# Don't consider out-of-scope answers (last part of the test should be unnecessary because of the
# p_mask but let's not take any risk)
if (
start_index >= len(offset_mapping)
or end_index >= len(offset_mapping)
or offset_mapping[start_index] is None
or len(offset_mapping[start_index]) < 2
or offset_mapping[end_index] is None
or len(offset_mapping[end_index]) < 2
):
continue
# Don't consider answers with a length negative or > max_answer_length.
if end_index < start_index or end_index - start_index + 1 > max_answer_length:
continue
# Don't consider answer that don't have the maximum context available (if such information is
# provided).
if token_is_max_context is not None and not token_is_max_context.get(str(start_index), False):
continue
prelim_predictions.append(
{
"offsets": (offset_mapping[start_index][0], offset_mapping[end_index][1]),
"score": start_log_prob[i] + end_log_prob[j_index],
"start_log_prob": start_log_prob[i],
"end_log_prob": end_log_prob[j_index],
}
)
# Only keep the best `n_best_size` predictions.
predictions = sorted(prelim_predictions, key=lambda x: x["score"], reverse=True)[:n_best_size]
# Use the offsets to gather the answer text in the original context.
context = example["context"]
for pred in predictions:
offsets = pred.pop("offsets")
pred["text"] = context[offsets[0] : offsets[1]]
# In the very rare edge case we have not a single non-null prediction, we create a fake prediction to avoid
# failure.
if len(predictions) == 0:
# Without predictions min_null_score is going to be None and None will cause an exception later
min_null_score = -2e-6
predictions.insert(0, {"text": "", "start_logit": -1e-6, "end_logit": -1e-6, "score": min_null_score})
# Compute the softmax of all scores (we do it with numpy to stay independent from torch/tf in this file, using
# the LogSumExp trick).
scores = np.array([pred.pop("score") for pred in predictions])
exp_scores = np.exp(scores - np.max(scores))
probs = exp_scores / exp_scores.sum()
# Include the probabilities in our predictions.
for prob, pred in zip(probs, predictions):
pred["probability"] = prob
# Pick the best prediction and set the probability for the null answer.
all_predictions[example["id"]] = predictions[0]["text"]
if version_2_with_negative:
scores_diff_json[example["id"]] = float(min_null_score)
# Make `predictions` JSON-serializable by casting np.float back to float.
all_nbest_json[example["id"]] = [
{k: (float(v) if isinstance(v, (np.float16, np.float32, np.float64)) else v) for k, v in pred.items()}
for pred in predictions
]
# If we have an output_dir, let's save all those dicts.
if output_dir is not None:
if not os.path.isdir(output_dir):
raise EnvironmentError(f"{output_dir} is not a directory.")
prediction_file = os.path.join(
output_dir, "predictions.json" if prefix is None else f"{prefix}_predictions.json"
)
nbest_file = os.path.join(
output_dir, "nbest_predictions.json" if prefix is None else f"{prefix}_nbest_predictions.json"
)
if version_2_with_negative:
null_odds_file = os.path.join(
output_dir, "null_odds.json" if prefix is None else f"{prefix}_null_odds.json"
)
logger.info(f"Saving predictions to {prediction_file}.")
with open(prediction_file, "w") as writer:
writer.write(json.dumps(all_predictions, indent=4) + "\n")
logger.info(f"Saving nbest_preds to {nbest_file}.")
with open(nbest_file, "w") as writer:
writer.write(json.dumps(all_nbest_json, indent=4) + "\n")
if version_2_with_negative:
logger.info(f"Saving null_odds to {null_odds_file}.")
with open(null_odds_file, "w") as writer:
writer.write(json.dumps(scores_diff_json, indent=4) + "\n")
return all_predictions, scores_diff_json
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/optimization_tf.py | # Copyright 2019 The TensorFlow Authors, The Hugging Face Team. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
"""Functions and classes related to optimization (weight updates)."""
import re
from typing import Callable, List, Optional, Union
import tensorflow as tf
try:
from tf_keras.optimizers.legacy import Adam
except (ImportError, ModuleNotFoundError):
from tensorflow.keras.optimizers.legacy import Adam
from .modeling_tf_utils import keras
# This block because Keras loves randomly moving things to different places - this changed somewhere between 2.10 - 2.15
if hasattr(keras.optimizers.schedules, "learning_rate_schedule"):
schedules = keras.optimizers.schedules.learning_rate_schedule
else:
schedules = keras.optimizers.schedules
class WarmUp(schedules.LearningRateSchedule):
"""
Applies a warmup schedule on a given learning rate decay schedule.
Args:
initial_learning_rate (`float`):
The initial learning rate for the schedule after the warmup (so this will be the learning rate at the end
of the warmup).
decay_schedule_fn (`Callable`):
The schedule function to apply after the warmup for the rest of training.
warmup_steps (`int`):
The number of steps for the warmup part of training.
power (`float`, *optional*, defaults to 1.0):
The power to use for the polynomial warmup (defaults is a linear warmup).
name (`str`, *optional*):
Optional name prefix for the returned tensors during the schedule.
"""
def __init__(
self,
initial_learning_rate: float,
decay_schedule_fn: Callable,
warmup_steps: int,
power: float = 1.0,
name: str = None,
):
super().__init__()
self.initial_learning_rate = initial_learning_rate
self.warmup_steps = warmup_steps
self.power = power
self.decay_schedule_fn = decay_schedule_fn
self.name = name
def __call__(self, step):
with tf.name_scope(self.name or "WarmUp") as name:
# Implements polynomial warmup. i.e., if global_step < warmup_steps, the
# learning rate will be `global_step/num_warmup_steps * init_lr`.
global_step_float = tf.cast(step, tf.float32)
warmup_steps_float = tf.cast(self.warmup_steps, tf.float32)
warmup_percent_done = global_step_float / warmup_steps_float
warmup_learning_rate = self.initial_learning_rate * tf.math.pow(warmup_percent_done, self.power)
return tf.cond(
global_step_float < warmup_steps_float,
lambda: warmup_learning_rate,
lambda: self.decay_schedule_fn(step - self.warmup_steps),
name=name,
)
def get_config(self):
return {
"initial_learning_rate": self.initial_learning_rate,
"decay_schedule_fn": self.decay_schedule_fn,
"warmup_steps": self.warmup_steps,
"power": self.power,
"name": self.name,
}
def create_optimizer(
init_lr: float,
num_train_steps: int,
num_warmup_steps: int,
min_lr_ratio: float = 0.0,
adam_beta1: float = 0.9,
adam_beta2: float = 0.999,
adam_epsilon: float = 1e-8,
adam_clipnorm: Optional[float] = None,
adam_global_clipnorm: Optional[float] = None,
weight_decay_rate: float = 0.0,
power: float = 1.0,
include_in_weight_decay: Optional[List[str]] = None,
):
"""
Creates an optimizer with a learning rate schedule using a warmup phase followed by a linear decay.
Args:
init_lr (`float`):
The desired learning rate at the end of the warmup phase.
num_train_steps (`int`):
The total number of training steps.
num_warmup_steps (`int`):
The number of warmup steps.
min_lr_ratio (`float`, *optional*, defaults to 0):
The final learning rate at the end of the linear decay will be `init_lr * min_lr_ratio`.
adam_beta1 (`float`, *optional*, defaults to 0.9):
The beta1 to use in Adam.
adam_beta2 (`float`, *optional*, defaults to 0.999):
The beta2 to use in Adam.
adam_epsilon (`float`, *optional*, defaults to 1e-8):
The epsilon to use in Adam.
adam_clipnorm (`float`, *optional*, defaults to `None`):
If not `None`, clip the gradient norm for each weight tensor to this value.
adam_global_clipnorm (`float`, *optional*, defaults to `None`)
If not `None`, clip gradient norm to this value. When using this argument, the norm is computed over all
weight tensors, as if they were concatenated into a single vector.
weight_decay_rate (`float`, *optional*, defaults to 0):
The weight decay to use.
power (`float`, *optional*, defaults to 1.0):
The power to use for PolynomialDecay.
include_in_weight_decay (`List[str]`, *optional*):
List of the parameter names (or re patterns) to apply weight decay to. If none is passed, weight decay is
applied to all parameters except bias and layer norm parameters.
"""
# Implements linear decay of the learning rate.
lr_schedule = schedules.PolynomialDecay(
initial_learning_rate=init_lr,
decay_steps=num_train_steps - num_warmup_steps,
end_learning_rate=init_lr * min_lr_ratio,
power=power,
)
if num_warmup_steps:
lr_schedule = WarmUp(
initial_learning_rate=init_lr,
decay_schedule_fn=lr_schedule,
warmup_steps=num_warmup_steps,
)
if weight_decay_rate > 0.0:
optimizer = AdamWeightDecay(
learning_rate=lr_schedule,
weight_decay_rate=weight_decay_rate,
beta_1=adam_beta1,
beta_2=adam_beta2,
epsilon=adam_epsilon,
clipnorm=adam_clipnorm,
global_clipnorm=adam_global_clipnorm,
exclude_from_weight_decay=["LayerNorm", "layer_norm", "bias"],
include_in_weight_decay=include_in_weight_decay,
)
else:
optimizer = keras.optimizers.Adam(
learning_rate=lr_schedule,
beta_1=adam_beta1,
beta_2=adam_beta2,
epsilon=adam_epsilon,
clipnorm=adam_clipnorm,
global_clipnorm=adam_global_clipnorm,
)
# We return the optimizer and the LR scheduler in order to better track the
# evolution of the LR independently of the optimizer.
return optimizer, lr_schedule
class AdamWeightDecay(Adam):
"""
Adam enables L2 weight decay and clip_by_global_norm on gradients. Just adding the square of the weights to the
loss function is *not* the correct way of using L2 regularization/weight decay with Adam, since that will interact
with the m and v parameters in strange ways as shown in [Decoupled Weight Decay
Regularization](https://arxiv.org/abs/1711.05101).
Instead we want to decay the weights in a manner that doesn't interact with the m/v parameters. This is equivalent
to adding the square of the weights to the loss with plain (non-momentum) SGD.
Args:
learning_rate (`Union[float, LearningRateSchedule]`, *optional*, defaults to 0.001):
The learning rate to use or a schedule.
beta_1 (`float`, *optional*, defaults to 0.9):
The beta1 parameter in Adam, which is the exponential decay rate for the 1st momentum estimates.
beta_2 (`float`, *optional*, defaults to 0.999):
The beta2 parameter in Adam, which is the exponential decay rate for the 2nd momentum estimates.
epsilon (`float`, *optional*, defaults to 1e-07):
The epsilon parameter in Adam, which is a small constant for numerical stability.
amsgrad (`bool`, *optional*, defaults to `False`):
Whether to apply AMSGrad variant of this algorithm or not, see [On the Convergence of Adam and
Beyond](https://arxiv.org/abs/1904.09237).
weight_decay_rate (`float`, *optional*, defaults to 0.0):
The weight decay to apply.
include_in_weight_decay (`List[str]`, *optional*):
List of the parameter names (or re patterns) to apply weight decay to. If none is passed, weight decay is
applied to all parameters by default (unless they are in `exclude_from_weight_decay`).
exclude_from_weight_decay (`List[str]`, *optional*):
List of the parameter names (or re patterns) to exclude from applying weight decay to. If a
`include_in_weight_decay` is passed, the names in it will supersede this list.
name (`str`, *optional*, defaults to `"AdamWeightDecay"`):
Optional name for the operations created when applying gradients.
kwargs (`Dict[str, Any]`, *optional*):
Keyword arguments. Allowed to be {`clipnorm`, `clipvalue`, `lr`, `decay`}. `clipnorm` is clip gradients by
norm; `clipvalue` is clip gradients by value, `decay` is included for backward compatibility to allow time
inverse decay of learning rate. `lr` is included for backward compatibility, recommended to use
`learning_rate` instead.
"""
def __init__(
self,
learning_rate: Union[float, schedules.LearningRateSchedule] = 0.001,
beta_1: float = 0.9,
beta_2: float = 0.999,
epsilon: float = 1e-7,
amsgrad: bool = False,
weight_decay_rate: float = 0.0,
include_in_weight_decay: Optional[List[str]] = None,
exclude_from_weight_decay: Optional[List[str]] = None,
name: str = "AdamWeightDecay",
**kwargs,
):
super().__init__(learning_rate, beta_1, beta_2, epsilon, amsgrad, name, **kwargs)
self.weight_decay_rate = weight_decay_rate
self._include_in_weight_decay = include_in_weight_decay
self._exclude_from_weight_decay = exclude_from_weight_decay
@classmethod
def from_config(cls, config):
"""Creates an optimizer from its config with WarmUp custom object."""
custom_objects = {"WarmUp": WarmUp}
return super(AdamWeightDecay, cls).from_config(config, custom_objects=custom_objects)
def _prepare_local(self, var_device, var_dtype, apply_state):
super(AdamWeightDecay, self)._prepare_local(var_device, var_dtype, apply_state)
apply_state[(var_device, var_dtype)]["weight_decay_rate"] = tf.constant(
self.weight_decay_rate, name="adam_weight_decay_rate"
)
def _decay_weights_op(self, var, learning_rate, apply_state):
do_decay = self._do_use_weight_decay(var.name)
if do_decay:
return var.assign_sub(
learning_rate * var * apply_state[(var.device, var.dtype.base_dtype)]["weight_decay_rate"],
use_locking=self._use_locking,
)
return tf.no_op()
def apply_gradients(self, grads_and_vars, name=None, **kwargs):
grads, tvars = list(zip(*grads_and_vars))
return super(AdamWeightDecay, self).apply_gradients(zip(grads, tvars), name=name, **kwargs)
def _get_lr(self, var_device, var_dtype, apply_state):
"""Retrieves the learning rate with the given state."""
if apply_state is None:
return self._decayed_lr_t[var_dtype], {}
apply_state = apply_state or {}
coefficients = apply_state.get((var_device, var_dtype))
if coefficients is None:
coefficients = self._fallback_apply_state(var_device, var_dtype)
apply_state[(var_device, var_dtype)] = coefficients
return coefficients["lr_t"], {"apply_state": apply_state}
def _resource_apply_dense(self, grad, var, apply_state=None):
lr_t, kwargs = self._get_lr(var.device, var.dtype.base_dtype, apply_state)
decay = self._decay_weights_op(var, lr_t, apply_state)
with tf.control_dependencies([decay]):
return super(AdamWeightDecay, self)._resource_apply_dense(grad, var, **kwargs)
def _resource_apply_sparse(self, grad, var, indices, apply_state=None):
lr_t, kwargs = self._get_lr(var.device, var.dtype.base_dtype, apply_state)
decay = self._decay_weights_op(var, lr_t, apply_state)
with tf.control_dependencies([decay]):
return super(AdamWeightDecay, self)._resource_apply_sparse(grad, var, indices, **kwargs)
def get_config(self):
config = super().get_config()
config.update({"weight_decay_rate": self.weight_decay_rate})
return config
def _do_use_weight_decay(self, param_name):
"""Whether to use L2 weight decay for `param_name`."""
if self.weight_decay_rate == 0:
return False
if self._include_in_weight_decay:
for r in self._include_in_weight_decay:
if re.search(r, param_name) is not None:
return True
if self._exclude_from_weight_decay:
for r in self._exclude_from_weight_decay:
if re.search(r, param_name) is not None:
return False
return True
# Extracted from https://github.com/OpenNMT/OpenNMT-tf/blob/master/opennmt/optimizers/utils.py
class GradientAccumulator:
"""
Gradient accumulation utility. When used with a distribution strategy, the accumulator should be called in a
replica context. Gradients will be accumulated locally on each replica and without synchronization. Users should
then call `.gradients`, scale the gradients if required, and pass the result to `apply_gradients`.
"""
# We use the ON_READ synchronization policy so that no synchronization is
# performed on assignment. To get the value, we call .value() which returns the
# value on the current replica without synchronization.
def __init__(self):
"""Initializes the accumulator."""
self._gradients = []
self._accum_steps = None
@property
def step(self):
"""Number of accumulated steps."""
if self._accum_steps is None:
self._accum_steps = tf.Variable(
tf.constant(0, dtype=tf.int64),
trainable=False,
synchronization=tf.VariableSynchronization.ON_READ,
aggregation=tf.VariableAggregation.ONLY_FIRST_REPLICA,
)
return self._accum_steps.value()
@property
def gradients(self):
"""The accumulated gradients on the current replica."""
if not self._gradients:
raise ValueError("The accumulator should be called first to initialize the gradients")
return [gradient.value() if gradient is not None else gradient for gradient in self._gradients]
def __call__(self, gradients):
"""Accumulates `gradients` on the current replica."""
if not self._gradients:
_ = self.step # Create the step variable.
self._gradients.extend(
[
tf.Variable(
tf.zeros_like(gradient),
trainable=False,
synchronization=tf.VariableSynchronization.ON_READ,
aggregation=tf.VariableAggregation.ONLY_FIRST_REPLICA,
)
if gradient is not None
else gradient
for gradient in gradients
]
)
if len(gradients) != len(self._gradients):
raise ValueError(f"Expected {len(self._gradients)} gradients, but got {len(gradients)}")
for accum_gradient, gradient in zip(self._gradients, gradients):
if accum_gradient is not None and gradient is not None:
accum_gradient.assign_add(gradient)
self._accum_steps.assign_add(1)
def reset(self):
"""Resets the accumulated gradients on the current replica."""
if not self._gradients:
return
self._accum_steps.assign(0)
for gradient in self._gradients:
if gradient is not None:
gradient.assign(tf.zeros_like(gradient))
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/dependency_versions_table.py | # THIS FILE HAS BEEN AUTOGENERATED. To update:
# 1. modify the `_deps` dict in setup.py
# 2. run `make deps_table_update``
deps = {
"Pillow": "Pillow>=10.0.1,<=15.0",
"accelerate": "accelerate>=0.21.0",
"av": "av==9.2.0",
"beautifulsoup4": "beautifulsoup4",
"codecarbon": "codecarbon==1.2.0",
"cookiecutter": "cookiecutter==1.7.3",
"dataclasses": "dataclasses",
"datasets": "datasets!=2.5.0",
"decord": "decord==0.6.0",
"deepspeed": "deepspeed>=0.9.3",
"diffusers": "diffusers",
"dill": "dill<0.3.5",
"evaluate": "evaluate>=0.2.0",
"faiss-cpu": "faiss-cpu",
"fastapi": "fastapi",
"filelock": "filelock",
"flax": "flax>=0.4.1,<=0.7.0",
"fsspec": "fsspec<2023.10.0",
"ftfy": "ftfy",
"fugashi": "fugashi>=1.0",
"GitPython": "GitPython<3.1.19",
"huggingface-hub": "huggingface-hub>=0.19.3,<1.0",
"importlib_metadata": "importlib_metadata",
"ipadic": "ipadic>=1.0.0,<2.0",
"isort": "isort>=5.5.4",
"jax": "jax>=0.4.1,<=0.4.13",
"jaxlib": "jaxlib>=0.4.1,<=0.4.13",
"jieba": "jieba",
"kenlm": "kenlm",
"keras": "keras>2.9,<2.16",
"keras-nlp": "keras-nlp>=0.3.1",
"librosa": "librosa",
"nltk": "nltk",
"natten": "natten>=0.14.6,<0.15.0",
"numpy": "numpy>=1.17",
"onnxconverter-common": "onnxconverter-common",
"onnxruntime-tools": "onnxruntime-tools>=1.4.2",
"onnxruntime": "onnxruntime>=1.4.0",
"opencv-python": "opencv-python",
"optuna": "optuna",
"optax": "optax>=0.0.8,<=0.1.4",
"packaging": "packaging>=20.0",
"parameterized": "parameterized",
"phonemizer": "phonemizer",
"protobuf": "protobuf",
"psutil": "psutil",
"pyyaml": "pyyaml>=5.1",
"pydantic": "pydantic",
"pytest": "pytest>=7.2.0,<8.0.0",
"pytest-timeout": "pytest-timeout",
"pytest-xdist": "pytest-xdist",
"python": "python>=3.8.0",
"ray[tune]": "ray[tune]>=2.7.0",
"regex": "regex!=2019.12.17",
"requests": "requests",
"rhoknp": "rhoknp>=1.1.0,<1.3.1",
"rjieba": "rjieba",
"rouge-score": "rouge-score!=0.0.7,!=0.0.8,!=0.1,!=0.1.1",
"ruff": "ruff==0.1.5",
"sacrebleu": "sacrebleu>=1.4.12,<2.0.0",
"sacremoses": "sacremoses",
"safetensors": "safetensors>=0.4.1",
"sagemaker": "sagemaker>=2.31.0",
"scikit-learn": "scikit-learn",
"scipy": "scipy<1.13.0",
"sentencepiece": "sentencepiece>=0.1.91,!=0.1.92",
"sigopt": "sigopt",
"starlette": "starlette",
"sudachipy": "sudachipy>=0.6.6",
"sudachidict_core": "sudachidict_core>=20220729",
"tensorboard": "tensorboard",
"tensorflow-cpu": "tensorflow-cpu>2.9,<2.16",
"tensorflow": "tensorflow>2.9,<2.16",
"tensorflow-text": "tensorflow-text<2.16",
"tensorflow-probability": "tensorflow-probability<2.16",
"tf2onnx": "tf2onnx",
"timeout-decorator": "timeout-decorator",
"timm": "timm",
"tokenizers": "tokenizers>=0.19,<0.20",
"torch": "torch",
"torchaudio": "torchaudio",
"torchvision": "torchvision",
"pyctcdecode": "pyctcdecode>=0.4.0",
"tqdm": "tqdm>=4.27",
"unidic": "unidic>=1.0.2",
"unidic_lite": "unidic_lite>=1.0.7",
"urllib3": "urllib3<2.0.0",
"uvicorn": "uvicorn",
"pytest-rich": "pytest-rich",
}
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/processing_utils.py | # coding=utf-8
# Copyright 2022 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Processing saving/loading class for common processors.
"""
import copy
import inspect
import json
import os
import warnings
from pathlib import Path
from typing import Any, Dict, Optional, Tuple, Union
from .dynamic_module_utils import custom_object_save
from .tokenization_utils_base import PreTrainedTokenizerBase
from .utils import (
PROCESSOR_NAME,
PushToHubMixin,
add_model_info_to_auto_map,
cached_file,
copy_func,
direct_transformers_import,
download_url,
is_offline_mode,
is_remote_url,
logging,
)
logger = logging.get_logger(__name__)
# Dynamically import the Transformers module to grab the attribute classes of the processor form their names.
transformers_module = direct_transformers_import(Path(__file__).parent)
AUTO_TO_BASE_CLASS_MAPPING = {
"AutoTokenizer": "PreTrainedTokenizerBase",
"AutoFeatureExtractor": "FeatureExtractionMixin",
"AutoImageProcessor": "ImageProcessingMixin",
}
class ProcessorMixin(PushToHubMixin):
"""
This is a mixin used to provide saving/loading functionality for all processor classes.
"""
attributes = ["feature_extractor", "tokenizer"]
# Names need to be attr_class for attr in attributes
feature_extractor_class = None
tokenizer_class = None
_auto_class = None
# args have to match the attributes class attribute
def __init__(self, *args, **kwargs):
# Sanitize args and kwargs
for key in kwargs:
if key not in self.attributes:
raise TypeError(f"Unexpected keyword argument {key}.")
for arg, attribute_name in zip(args, self.attributes):
if attribute_name in kwargs:
raise TypeError(f"Got multiple values for argument {attribute_name}.")
else:
kwargs[attribute_name] = arg
if len(kwargs) != len(self.attributes):
raise ValueError(
f"This processor requires {len(self.attributes)} arguments: {', '.join(self.attributes)}. Got "
f"{len(args)} arguments instead."
)
# Check each arg is of the proper class (this will also catch a user initializing in the wrong order)
for attribute_name, arg in kwargs.items():
class_name = getattr(self, f"{attribute_name}_class")
# Nothing is ever going to be an instance of "AutoXxx", in that case we check the base class.
class_name = AUTO_TO_BASE_CLASS_MAPPING.get(class_name, class_name)
if isinstance(class_name, tuple):
proper_class = tuple(getattr(transformers_module, n) for n in class_name if n is not None)
else:
proper_class = getattr(transformers_module, class_name)
if not isinstance(arg, proper_class):
raise ValueError(
f"Received a {type(arg).__name__} for argument {attribute_name}, but a {class_name} was expected."
)
setattr(self, attribute_name, arg)
def to_dict(self) -> Dict[str, Any]:
"""
Serializes this instance to a Python dictionary.
Returns:
`Dict[str, Any]`: Dictionary of all the attributes that make up this processor instance.
"""
output = copy.deepcopy(self.__dict__)
# Get the kwargs in `__init__`.
sig = inspect.signature(self.__init__)
# Only save the attributes that are presented in the kwargs of `__init__`.
attrs_to_save = sig.parameters
# Don't save attributes like `tokenizer`, `image processor` etc.
attrs_to_save = [x for x in attrs_to_save if x not in self.__class__.attributes]
# extra attributes to be kept
attrs_to_save += ["auto_map"]
output = {k: v for k, v in output.items() if k in attrs_to_save}
output["processor_class"] = self.__class__.__name__
if "tokenizer" in output:
del output["tokenizer"]
if "image_processor" in output:
del output["image_processor"]
if "feature_extractor" in output:
del output["feature_extractor"]
# Some attributes have different names but containing objects that are not simple strings
output = {
k: v
for k, v in output.items()
if not (isinstance(v, PushToHubMixin) or v.__class__.__name__ == "BeamSearchDecoderCTC")
}
return output
def to_json_string(self) -> str:
"""
Serializes this instance to a JSON string.
Returns:
`str`: String containing all the attributes that make up this feature_extractor instance in JSON format.
"""
dictionary = self.to_dict()
return json.dumps(dictionary, indent=2, sort_keys=True) + "\n"
def to_json_file(self, json_file_path: Union[str, os.PathLike]):
"""
Save this instance to a JSON file.
Args:
json_file_path (`str` or `os.PathLike`):
Path to the JSON file in which this processor instance's parameters will be saved.
"""
with open(json_file_path, "w", encoding="utf-8") as writer:
writer.write(self.to_json_string())
def __repr__(self):
attributes_repr = [f"- {name}: {repr(getattr(self, name))}" for name in self.attributes]
attributes_repr = "\n".join(attributes_repr)
return f"{self.__class__.__name__}:\n{attributes_repr}\n\n{self.to_json_string()}"
def save_pretrained(self, save_directory, push_to_hub: bool = False, **kwargs):
"""
Saves the attributes of this processor (feature extractor, tokenizer...) in the specified directory so that it
can be reloaded using the [`~ProcessorMixin.from_pretrained`] method.
<Tip>
This class method is simply calling [`~feature_extraction_utils.FeatureExtractionMixin.save_pretrained`] and
[`~tokenization_utils_base.PreTrainedTokenizerBase.save_pretrained`]. Please refer to the docstrings of the
methods above for more information.
</Tip>
Args:
save_directory (`str` or `os.PathLike`):
Directory where the feature extractor JSON file and the tokenizer files will be saved (directory will
be created if it does not exist).
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if kwargs.get("token", None) is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
kwargs["token"] = use_auth_token
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
# If we have a custom config, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
attrs = [getattr(self, attribute_name) for attribute_name in self.attributes]
configs = [(a.init_kwargs if isinstance(a, PreTrainedTokenizerBase) else a) for a in attrs]
configs.append(self)
custom_object_save(self, save_directory, config=configs)
for attribute_name in self.attributes:
attribute = getattr(self, attribute_name)
# Include the processor class in the attribute config so this processor can then be reloaded with the
# `AutoProcessor` API.
if hasattr(attribute, "_set_processor_class"):
attribute._set_processor_class(self.__class__.__name__)
attribute.save_pretrained(save_directory)
if self._auto_class is not None:
# We added an attribute to the init_kwargs of the tokenizers, which needs to be cleaned up.
for attribute_name in self.attributes:
attribute = getattr(self, attribute_name)
if isinstance(attribute, PreTrainedTokenizerBase):
del attribute.init_kwargs["auto_map"]
# If we save using the predefined names, we can load using `from_pretrained`
output_processor_file = os.path.join(save_directory, PROCESSOR_NAME)
# For now, let's not save to `processor_config.json` if the processor doesn't have extra attributes and
# `auto_map` is not specified.
if set(self.to_dict().keys()) != {"processor_class"}:
self.to_json_file(output_processor_file)
logger.info(f"processor saved in {output_processor_file}")
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=kwargs.get("token"),
)
if set(self.to_dict().keys()) == {"processor_class"}:
return []
return [output_processor_file]
@classmethod
def get_processor_dict(
cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
"""
From a `pretrained_model_name_or_path`, resolve to a dictionary of parameters, to be used for instantiating a
processor of type [`~processing_utils.ProcessingMixin`] using `from_args_and_dict`.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`):
The identifier of the pre-trained checkpoint from which we want the dictionary of parameters.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
Returns:
`Tuple[Dict, Dict]`: The dictionary(ies) that will be used to instantiate the processor object.
"""
cache_dir = kwargs.pop("cache_dir", None)
force_download = kwargs.pop("force_download", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
token = kwargs.pop("token", None)
local_files_only = kwargs.pop("local_files_only", False)
revision = kwargs.pop("revision", None)
subfolder = kwargs.pop("subfolder", "")
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
user_agent = {"file_type": "processor", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if os.path.isdir(pretrained_model_name_or_path):
processor_file = os.path.join(pretrained_model_name_or_path, PROCESSOR_NAME)
if os.path.isfile(pretrained_model_name_or_path):
resolved_processor_file = pretrained_model_name_or_path
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
processor_file = pretrained_model_name_or_path
resolved_processor_file = download_url(pretrained_model_name_or_path)
else:
processor_file = PROCESSOR_NAME
try:
# Load from local folder or from cache or download from model Hub and cache
resolved_processor_file = cached_file(
pretrained_model_name_or_path,
processor_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
_raise_exceptions_for_missing_entries=False,
)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted to
# the original exception.
raise
except Exception:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load processor for '{pretrained_model_name_or_path}'. If you were trying to load"
" it from 'https://huggingface.co/models', make sure you don't have a local directory with the"
f" same name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a"
f" directory containing a {PROCESSOR_NAME} file"
)
# Existing processors on the Hub created before #27761 being merged don't have `processor_config.json` (if not
# updated afterward), and we need to keep `from_pretrained` work. So here it fallbacks to the empty dict.
# (`cached_file` called using `_raise_exceptions_for_missing_entries=False` to avoid exception)
# However, for models added in the future, we won't get the expected error if this file is missing.
if resolved_processor_file is None:
return {}, kwargs
try:
# Load processor dict
with open(resolved_processor_file, "r", encoding="utf-8") as reader:
text = reader.read()
processor_dict = json.loads(text)
except json.JSONDecodeError:
raise EnvironmentError(
f"It looks like the config file at '{resolved_processor_file}' is not a valid JSON file."
)
if is_local:
logger.info(f"loading configuration file {resolved_processor_file}")
else:
logger.info(f"loading configuration file {processor_file} from cache at {resolved_processor_file}")
if "auto_map" in processor_dict and not is_local:
processor_dict["auto_map"] = add_model_info_to_auto_map(
processor_dict["auto_map"], pretrained_model_name_or_path
)
return processor_dict, kwargs
@classmethod
def from_args_and_dict(cls, args, processor_dict: Dict[str, Any], **kwargs):
"""
Instantiates a type of [`~processing_utils.ProcessingMixin`] from a Python dictionary of parameters.
Args:
processor_dict (`Dict[str, Any]`):
Dictionary that will be used to instantiate the processor object. Such a dictionary can be
retrieved from a pretrained checkpoint by leveraging the
[`~processing_utils.ProcessingMixin.to_dict`] method.
kwargs (`Dict[str, Any]`):
Additional parameters from which to initialize the processor object.
Returns:
[`~processing_utils.ProcessingMixin`]: The processor object instantiated from those
parameters.
"""
processor_dict = processor_dict.copy()
return_unused_kwargs = kwargs.pop("return_unused_kwargs", False)
# Unlike image processors or feature extractors whose `__init__` accept `kwargs`, processor don't have `kwargs`.
# We have to pop up some unused (but specific) arguments to make it work.
if "processor_class" in processor_dict:
del processor_dict["processor_class"]
if "auto_map" in processor_dict:
del processor_dict["auto_map"]
processor = cls(*args, **processor_dict)
# Update processor with kwargs if needed
for key in set(kwargs.keys()):
if hasattr(processor, key):
setattr(processor, key, kwargs.pop(key))
logger.info(f"Processor {processor}")
if return_unused_kwargs:
return processor, kwargs
else:
return processor
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
**kwargs,
):
r"""
Instantiate a processor associated with a pretrained model.
<Tip>
This class method is simply calling the feature extractor
[`~feature_extraction_utils.FeatureExtractionMixin.from_pretrained`], image processor
[`~image_processing_utils.ImageProcessingMixin`] and the tokenizer
[`~tokenization_utils_base.PreTrainedTokenizer.from_pretrained`] methods. Please refer to the docstrings of the
methods above for more information.
</Tip>
Args:
pretrained_model_name_or_path (`str` or `os.PathLike`):
This can be either:
- a string, the *model id* of a pretrained feature_extractor hosted inside a model repo on
huggingface.co.
- a path to a *directory* containing a feature extractor file saved using the
[`~SequenceFeatureExtractor.save_pretrained`] method, e.g., `./my_model_directory/`.
- a path or url to a saved feature extractor JSON *file*, e.g.,
`./my_model_directory/preprocessor_config.json`.
**kwargs
Additional keyword arguments passed along to both
[`~feature_extraction_utils.FeatureExtractionMixin.from_pretrained`] and
[`~tokenization_utils_base.PreTrainedTokenizer.from_pretrained`].
"""
kwargs["cache_dir"] = cache_dir
kwargs["force_download"] = force_download
kwargs["local_files_only"] = local_files_only
kwargs["revision"] = revision
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
args = cls._get_arguments_from_pretrained(pretrained_model_name_or_path, **kwargs)
processor_dict, kwargs = cls.get_processor_dict(pretrained_model_name_or_path, **kwargs)
return cls.from_args_and_dict(args, processor_dict, **kwargs)
@classmethod
def register_for_auto_class(cls, auto_class="AutoProcessor"):
"""
Register this class with a given auto class. This should only be used for custom feature extractors as the ones
in the library are already mapped with `AutoProcessor`.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"AutoProcessor"`):
The auto class to register this new feature extractor with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
@classmethod
def _get_arguments_from_pretrained(cls, pretrained_model_name_or_path, **kwargs):
args = []
for attribute_name in cls.attributes:
class_name = getattr(cls, f"{attribute_name}_class")
if isinstance(class_name, tuple):
classes = tuple(getattr(transformers_module, n) if n is not None else None for n in class_name)
use_fast = kwargs.get("use_fast", True)
if use_fast and classes[1] is not None:
attribute_class = classes[1]
else:
attribute_class = classes[0]
else:
attribute_class = getattr(transformers_module, class_name)
args.append(attribute_class.from_pretrained(pretrained_model_name_or_path, **kwargs))
return args
@property
def model_input_names(self):
first_attribute = getattr(self, self.attributes[0])
return getattr(first_attribute, "model_input_names", None)
ProcessorMixin.push_to_hub = copy_func(ProcessorMixin.push_to_hub)
if ProcessorMixin.push_to_hub.__doc__ is not None:
ProcessorMixin.push_to_hub.__doc__ = ProcessorMixin.push_to_hub.__doc__.format(
object="processor", object_class="AutoProcessor", object_files="processor files"
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/dependency_versions_check.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .dependency_versions_table import deps
from .utils.versions import require_version, require_version_core
# define which module versions we always want to check at run time
# (usually the ones defined in `install_requires` in setup.py)
#
# order specific notes:
# - tqdm must be checked before tokenizers
pkgs_to_check_at_runtime = [
"python",
"tqdm",
"regex",
"requests",
"packaging",
"filelock",
"numpy",
"tokenizers",
"huggingface-hub",
"safetensors",
"accelerate",
"pyyaml",
]
for pkg in pkgs_to_check_at_runtime:
if pkg in deps:
if pkg == "tokenizers":
# must be loaded here, or else tqdm check may fail
from .utils import is_tokenizers_available
if not is_tokenizers_available():
continue # not required, check version only if installed
elif pkg == "accelerate":
# must be loaded here, or else tqdm check may fail
from .utils import is_accelerate_available
# Maybe switch to is_torch_available in the future here so that Accelerate is hard dep of
# Transformers with PyTorch
if not is_accelerate_available():
continue # not required, check version only if installed
require_version_core(deps[pkg])
else:
raise ValueError(f"can't find {pkg} in {deps.keys()}, check dependency_versions_table.py")
def dep_version_check(pkg, hint=None):
require_version(deps[pkg], hint)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_tf_outputs.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import annotations
import warnings
from dataclasses import dataclass
from typing import List, Optional, Tuple
import tensorflow as tf
from .utils import ModelOutput
@dataclass
class TFBaseModelOutput(ModelOutput):
"""
Base class for model's outputs, with potential hidden states and attentions.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
hidden_states (`tuple(tf.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFBaseModelOutputWithNoAttention(ModelOutput):
"""
Base class for model's outputs, with potential hidden states.
Args:
last_hidden_state (`tf.Tensor` shape `(batch_size, num_channels, height, width)`):
Sequence of hidden-states at the output of the last layer of the model.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each layer) of shape `(batch_size, num_channels, height, width)`.
Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
"""
last_hidden_state: tf.Tensor = None
hidden_states: Optional[Tuple[tf.Tensor, ...]] = None
@dataclass
class TFBaseModelOutputWithPooling(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`tf.Tensor` of shape `(batch_size, hidden_size)`):
Last layer hidden-state of the first token of the sequence (classification token) further processed by a
Linear layer and a Tanh activation function. The Linear layer weights are trained from the next sentence
prediction (classification) objective during pretraining.
This output is usually *not* a good summary of the semantic content of the input, you're often better with
averaging or pooling the sequence of hidden-states for the whole input sequence.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: tf.Tensor = None
pooler_output: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFBaseModelOutputWithPoolingAndNoAttention(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, num_channels, height, width)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`tf.Tensor` of shape `(batch_size, hidden_size)`):
Last layer hidden-state after a pooling operation on the spatial dimensions.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each layer) of shape `(batch_size, num_channels, height, width)`.
Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
"""
last_hidden_state: tf.Tensor = None
pooler_output: tf.Tensor = None
hidden_states: Optional[Tuple[tf.Tensor, ...]] = None
@dataclass
class TFBaseModelOutputWithPoolingAndCrossAttentions(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`tf.Tensor` of shape `(batch_size, hidden_size)`):
Last layer hidden-state of the first token of the sequence (classification token) further processed by a
Linear layer and a Tanh activation function. The Linear layer weights are trained from the next sentence
prediction (classification) objective during pretraining.
This output is usually *not* a good summary of the semantic content of the input, you're often better with
averaging or pooling the sequence of hidden-states for the whole input sequence.
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
"""
last_hidden_state: tf.Tensor = None
pooler_output: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFBaseModelOutputWithPast(ModelOutput):
"""
Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1,
hidden_size)` is output.
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFBaseModelOutputWithCrossAttentions(ModelOutput):
"""
Base class for model's outputs, with potential hidden states and attentions.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
hidden_states (`tuple(tf.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
"""
last_hidden_state: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFBaseModelOutputWithPastAndCrossAttentions(ModelOutput):
"""
Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1,
hidden_size)` is output.
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
hidden_states (`tuple(tf.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
"""
last_hidden_state: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSeq2SeqModelOutput(ModelOutput):
"""
Base class for model encoder's outputs that also contains : pre-computed hidden states that can speed up sequential
decoding.
Args:
last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the decoder of the model.
If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1,
hidden_size)` is output.
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) of the decoder that can be
used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
last_hidden_state: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
decoder_hidden_states: Tuple[tf.Tensor] | None = None
decoder_attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
encoder_last_hidden_state: tf.Tensor | None = None
encoder_hidden_states: Tuple[tf.Tensor] | None = None
encoder_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFCausalLMOutput(ModelOutput):
"""
Base class for causal language model (or autoregressive) outputs.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `labels` is provided):
Language modeling loss (for next-token prediction).
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFCausalLMOutputWithPast(ModelOutput):
"""
Base class for causal language model (or autoregressive) outputs.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `labels` is provided):
Language modeling loss (for next-token prediction).
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFCausalLMOutputWithCrossAttentions(ModelOutput):
"""
Base class for causal language model (or autoregressive) outputs.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `labels` is provided):
Language modeling loss (for next-token prediction).
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFMaskedLMOutput(ModelOutput):
"""
Base class for masked language models outputs.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `labels` is provided):
Masked language modeling (MLM) loss.
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSeq2SeqLMOutput(ModelOutput):
"""
Base class for sequence-to-sequence language models outputs.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `labels` is provided):
Language modeling loss.
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) of the decoder that can be
used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
decoder_hidden_states: Tuple[tf.Tensor] | None = None
decoder_attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
encoder_last_hidden_state: tf.Tensor | None = None
encoder_hidden_states: Tuple[tf.Tensor] | None = None
encoder_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFNextSentencePredictorOutput(ModelOutput):
"""
Base class for outputs of models predicting if two sentences are consecutive or not.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of non-masked labels, returned when `next_sentence_label` is provided):
Next sentence prediction loss.
logits (`tf.Tensor` of shape `(batch_size, 2)`):
Prediction scores of the next sequence prediction (classification) head (scores of True/False continuation
before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSequenceClassifierOutput(ModelOutput):
"""
Base class for outputs of sentence classification models.
Args:
loss (`tf.Tensor` of shape `(batch_size, )`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSeq2SeqSequenceClassifierOutput(ModelOutput):
"""
Base class for outputs of sequence-to-sequence sentence classification models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `label` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) of the decoder that can be
used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`
encoder_last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
decoder_hidden_states: Tuple[tf.Tensor] | None = None
decoder_attentions: Tuple[tf.Tensor] | None = None
cross_attentions: Tuple[tf.Tensor] | None = None
encoder_last_hidden_state: tf.Tensor | None = None
encoder_hidden_states: Tuple[tf.Tensor] | None = None
encoder_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSemanticSegmenterOutput(ModelOutput):
"""
Base class for outputs of semantic segmentation models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels, logits_height, logits_width)`):
Classification scores for each pixel.
<Tip warning={true}>
The logits returned do not necessarily have the same size as the `pixel_values` passed as inputs. This is
to avoid doing two interpolations and lose some quality when a user needs to resize the logits to the
original image size as post-processing. You should always check your logits shape and resize as needed.
</Tip>
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each layer) of shape `(batch_size, patch_size, hidden_size)`.
Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, patch_size, sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSemanticSegmenterOutputWithNoAttention(ModelOutput):
"""
Base class for outputs of semantic segmentation models that do not output attention scores.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels, logits_height, logits_width)`):
Classification scores for each pixel.
<Tip warning={true}>
The logits returned do not necessarily have the same size as the `pixel_values` passed as inputs. This is
to avoid doing two interpolations and lose some quality when a user needs to resize the logits to the
original image size as post-processing. You should always check your logits shape and resize as needed.
</Tip>
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each layer) of shape `(batch_size, patch_size, hidden_size)`.
Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
@dataclass
class TFImageClassifierOutput(ModelOutput):
"""
Base class for outputs of image classification models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each stage) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states (also called
feature maps) of the model at the output of each stage.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, patch_size, sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFMultipleChoiceModelOutput(ModelOutput):
"""
Base class for outputs of multiple choice models.
Args:
loss (`tf.Tensor` of shape *(batch_size, )*, *optional*, returned when `labels` is provided):
Classification loss.
logits (`tf.Tensor` of shape `(batch_size, num_choices)`):
*num_choices* is the second dimension of the input tensors. (see *input_ids* above).
Classification scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFTokenClassifierOutput(ModelOutput):
"""
Base class for outputs of token classification models.
Args:
loss (`tf.Tensor` of shape `(n,)`, *optional*, where n is the number of unmasked labels, returned when `labels` is provided) :
Classification loss.
logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.num_labels)`):
Classification scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFQuestionAnsweringModelOutput(ModelOutput):
"""
Base class for outputs of question answering models.
Args:
loss (`tf.Tensor` of shape `(batch_size, )`, *optional*, returned when `start_positions` and `end_positions` are provided):
Total span extraction loss is the sum of a Cross-Entropy for the start and end positions.
start_logits (`tf.Tensor` of shape `(batch_size, sequence_length)`):
Span-start scores (before SoftMax).
end_logits (`tf.Tensor` of shape `(batch_size, sequence_length)`):
Span-end scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
start_logits: tf.Tensor = None
end_logits: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSeq2SeqQuestionAnsweringModelOutput(ModelOutput):
"""
Base class for outputs of sequence-to-sequence question answering models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
Total span extraction loss is the sum of a Cross-Entropy for the start and end positions.
start_logits (`tf.Tensor` of shape `(batch_size, sequence_length)`):
Span-start scores (before SoftMax).
end_logits (`tf.Tensor` of shape `(batch_size, sequence_length)`):
Span-end scores (before SoftMax).
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) of the decoder that can be
used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
encoder_last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
loss: tf.Tensor | None = None
start_logits: tf.Tensor = None
end_logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
decoder_hidden_states: Tuple[tf.Tensor] | None = None
decoder_attentions: Tuple[tf.Tensor] | None = None
encoder_last_hidden_state: tf.Tensor | None = None
encoder_hidden_states: Tuple[tf.Tensor] | None = None
encoder_attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFSequenceClassifierOutputWithPast(ModelOutput):
"""
Base class for outputs of sentence classification models.
Args:
loss (`tf.Tensor` of shape `(batch_size, )`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
past_key_values (`List[tf.Tensor]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
List of `tf.Tensor` of length `config.n_layers`, with each tensor of shape `(2, batch_size, num_heads,
sequence_length, embed_size_per_head)`).
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
past_key_values: List[tf.Tensor] | None = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@dataclass
class TFImageClassifierOutputWithNoAttention(ModelOutput):
"""
Base class for outputs of image classification models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
Classification (or regression if config.num_labels==1) loss.
logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each stage) of shape `(batch_size, num_channels, height, width)`. Hidden-states (also called
feature maps) of the model at the output of each stage.
"""
loss: tf.Tensor | None = None
logits: tf.Tensor = None
hidden_states: Optional[Tuple[tf.Tensor, ...]] = None
@dataclass
class TFMaskedImageModelingOutput(ModelOutput):
"""
Base class for outputs of masked image completion / in-painting models.
Args:
loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `bool_masked_pos` is provided):
Reconstruction loss.
reconstruction (`tf.Tensor` of shape `(batch_size, num_channels, height, width)`):
Reconstructed / completed images.
hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when
`config.output_hidden_states=True`):
Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + one for
the output of each stage) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states (also called
feature maps) of the model at the output of each stage.
attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when
`config.output_attentions=True`):
Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, patch_size, sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
loss: tf.Tensor | None = None
reconstruction: tf.Tensor = None
hidden_states: Tuple[tf.Tensor] | None = None
attentions: Tuple[tf.Tensor] | None = None
@property
def logits(self):
warnings.warn(
"logits attribute is deprecated and will be removed in version 5 of Transformers."
" Please use the reconstruction attribute to retrieve the final output instead.",
FutureWarning,
)
return self.reconstruction
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/tokenization_utils_base.py | # coding=utf-8
# Copyright 2020 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Base classes common to both the slow and the fast tokenization classes: PreTrainedTokenizerBase (host all the user
fronting encoding methods) Special token mixing (host the special tokens logic) and BatchEncoding (wrap the dictionary
of output with special method for the Fast tokenizers)
"""
import copy
import json
import os
import re
import warnings
from collections import UserDict
from collections.abc import Mapping, Sized
from contextlib import contextmanager
from dataclasses import dataclass
from functools import lru_cache
from typing import TYPE_CHECKING, Any, Dict, List, NamedTuple, Optional, Sequence, Tuple, Union
import numpy as np
from packaging import version
from . import __version__
from .dynamic_module_utils import custom_object_save
from .utils import (
ExplicitEnum,
PaddingStrategy,
PushToHubMixin,
TensorType,
add_end_docstrings,
add_model_info_to_auto_map,
cached_file,
copy_func,
download_url,
extract_commit_hash,
is_flax_available,
is_jax_tensor,
is_mlx_available,
is_numpy_array,
is_offline_mode,
is_remote_url,
is_tf_available,
is_tf_tensor,
is_tokenizers_available,
is_torch_available,
is_torch_device,
is_torch_tensor,
logging,
requires_backends,
to_py_obj,
)
if TYPE_CHECKING:
if is_torch_available():
import torch
if is_tf_available():
import tensorflow as tf
if is_flax_available():
import jax.numpy as jnp # noqa: F401
from .pipelines.conversational import Conversation
if is_tokenizers_available():
from tokenizers import AddedToken
from tokenizers import Encoding as EncodingFast
else:
@dataclass(frozen=False, eq=True)
class AddedToken:
"""
AddedToken represents a token to be added to a Tokenizer An AddedToken can have special options defining the
way it should behave.
The `normalized` will default to `not special` if it is not specified, similarly to the definition in
`tokenizers`.
"""
def __init__(
self, content: str, single_word=False, lstrip=False, rstrip=False, special=False, normalized=None
):
self.content = content
self.single_word = single_word
self.lstrip = lstrip
self.rstrip = rstrip
self.special = special
self.normalized = normalized if normalized is not None else not special
def __getstate__(self):
return self.__dict__
def __str__(self):
return self.content
@dataclass
class EncodingFast:
"""This is dummy class because without the `tokenizers` library we don't have these objects anyway"""
pass
logger = logging.get_logger(__name__)
VERY_LARGE_INTEGER = int(1e30) # This is used to set the max input length for a model with infinite size input
LARGE_INTEGER = int(1e20) # This is used when we need something big but slightly smaller than VERY_LARGE_INTEGER
# Define type aliases and NamedTuples
TextInput = str
PreTokenizedInput = List[str]
EncodedInput = List[int]
TextInputPair = Tuple[str, str]
PreTokenizedInputPair = Tuple[List[str], List[str]]
EncodedInputPair = Tuple[List[int], List[int]]
# Slow tokenizers used to be saved in three separated files
SPECIAL_TOKENS_MAP_FILE = "special_tokens_map.json"
ADDED_TOKENS_FILE = "added_tokens.json"
TOKENIZER_CONFIG_FILE = "tokenizer_config.json"
# Fast tokenizers (provided by HuggingFace tokenizer's library) can be saved in a single file
FULL_TOKENIZER_FILE = "tokenizer.json"
_re_tokenizer_file = re.compile(r"tokenizer\.(.*)\.json")
class TruncationStrategy(ExplicitEnum):
"""
Possible values for the `truncation` argument in [`PreTrainedTokenizerBase.__call__`]. Useful for tab-completion in
an IDE.
"""
ONLY_FIRST = "only_first"
ONLY_SECOND = "only_second"
LONGEST_FIRST = "longest_first"
DO_NOT_TRUNCATE = "do_not_truncate"
class CharSpan(NamedTuple):
"""
Character span in the original string.
Args:
start (`int`): Index of the first character in the original string.
end (`int`): Index of the character following the last character in the original string.
"""
start: int
end: int
class TokenSpan(NamedTuple):
"""
Token span in an encoded string (list of tokens).
Args:
start (`int`): Index of the first token in the span.
end (`int`): Index of the token following the last token in the span.
"""
start: int
end: int
class BatchEncoding(UserDict):
"""
Holds the output of the [`~tokenization_utils_base.PreTrainedTokenizerBase.__call__`],
[`~tokenization_utils_base.PreTrainedTokenizerBase.encode_plus`] and
[`~tokenization_utils_base.PreTrainedTokenizerBase.batch_encode_plus`] methods (tokens, attention_masks, etc).
This class is derived from a python dictionary and can be used as a dictionary. In addition, this class exposes
utility methods to map from word/character space to token space.
Args:
data (`dict`, *optional*):
Dictionary of lists/arrays/tensors returned by the `__call__`/`encode_plus`/`batch_encode_plus` methods
('input_ids', 'attention_mask', etc.).
encoding (`tokenizers.Encoding` or `Sequence[tokenizers.Encoding]`, *optional*):
If the tokenizer is a fast tokenizer which outputs additional information like mapping from word/character
space to token space the `tokenizers.Encoding` instance or list of instance (for batches) hold this
information.
tensor_type (`Union[None, str, TensorType]`, *optional*):
You can give a tensor_type here to convert the lists of integers in PyTorch/TensorFlow/Numpy Tensors at
initialization.
prepend_batch_axis (`bool`, *optional*, defaults to `False`):
Whether or not to add a batch axis when converting to tensors (see `tensor_type` above).
n_sequences (`Optional[int]`, *optional*):
You can give a tensor_type here to convert the lists of integers in PyTorch/TensorFlow/Numpy Tensors at
initialization.
"""
def __init__(
self,
data: Optional[Dict[str, Any]] = None,
encoding: Optional[Union[EncodingFast, Sequence[EncodingFast]]] = None,
tensor_type: Union[None, str, TensorType] = None,
prepend_batch_axis: bool = False,
n_sequences: Optional[int] = None,
):
super().__init__(data)
if isinstance(encoding, EncodingFast):
encoding = [encoding]
self._encodings = encoding
if n_sequences is None and encoding is not None and len(encoding):
n_sequences = encoding[0].n_sequences
self._n_sequences = n_sequences
self.convert_to_tensors(tensor_type=tensor_type, prepend_batch_axis=prepend_batch_axis)
@property
def n_sequences(self) -> Optional[int]:
"""
`Optional[int]`: The number of sequences used to generate each sample from the batch encoded in this
[`BatchEncoding`]. Currently can be one of `None` (unknown), `1` (a single sentence) or `2` (a pair of
sentences)
"""
return self._n_sequences
@property
def is_fast(self) -> bool:
"""
`bool`: Indicate whether this [`BatchEncoding`] was generated from the result of a [`PreTrainedTokenizerFast`]
or not.
"""
return self._encodings is not None
def __getitem__(self, item: Union[int, str]) -> Union[Any, EncodingFast]:
"""
If the key is a string, returns the value of the dict associated to `key` ('input_ids', 'attention_mask',
etc.).
If the key is an integer, get the `tokenizers.Encoding` for batch item with index `key`.
If the key is a slice, returns the value of the dict associated to `key` ('input_ids', 'attention_mask', etc.)
with the constraint of slice.
"""
if isinstance(item, str):
return self.data[item]
elif self._encodings is not None:
return self._encodings[item]
elif isinstance(item, slice):
return {key: self.data[key][item] for key in self.data.keys()}
else:
raise KeyError(
"Invalid key. Only three types of key are available: "
"(1) string, (2) integers for backend Encoding, and (3) slices for data subsetting."
)
def __getattr__(self, item: str):
try:
return self.data[item]
except KeyError:
raise AttributeError
def __getstate__(self):
return {"data": self.data, "encodings": self._encodings}
def __setstate__(self, state):
if "data" in state:
self.data = state["data"]
if "encodings" in state:
self._encodings = state["encodings"]
def keys(self):
return self.data.keys()
def values(self):
return self.data.values()
def items(self):
return self.data.items()
# After this point:
# Extended properties and methods only available for fast (Rust-based) tokenizers
# provided by HuggingFace tokenizers library.
@property
def encodings(self) -> Optional[List[EncodingFast]]:
"""
`Optional[List[tokenizers.Encoding]]`: The list all encodings from the tokenization process. Returns `None` if
the input was tokenized through Python (i.e., not a fast) tokenizer.
"""
return self._encodings
def tokens(self, batch_index: int = 0) -> List[str]:
"""
Return the list of tokens (sub-parts of the input strings after word/subword splitting and before conversion to
integer indices) at a given batch index (only works for the output of a fast tokenizer).
Args:
batch_index (`int`, *optional*, defaults to 0): The index to access in the batch.
Returns:
`List[str]`: The list of tokens at that index.
"""
if not self._encodings:
raise ValueError(
"tokens() is not available when using non-fast tokenizers (e.g. instance of a `XxxTokenizerFast`"
" class)."
)
return self._encodings[batch_index].tokens
def sequence_ids(self, batch_index: int = 0) -> List[Optional[int]]:
"""
Return a list mapping the tokens to the id of their original sentences:
- `None` for special tokens added around or between sequences,
- `0` for tokens corresponding to words in the first sequence,
- `1` for tokens corresponding to words in the second sequence when a pair of sequences was jointly
encoded.
Args:
batch_index (`int`, *optional*, defaults to 0): The index to access in the batch.
Returns:
`List[Optional[int]]`: A list indicating the sequence id corresponding to each token. Special tokens added
by the tokenizer are mapped to `None` and other tokens are mapped to the index of their corresponding
sequence.
"""
if not self._encodings:
raise ValueError(
"sequence_ids() is not available when using non-fast tokenizers (e.g. instance of a `XxxTokenizerFast`"
" class)."
)
return self._encodings[batch_index].sequence_ids
def words(self, batch_index: int = 0) -> List[Optional[int]]:
"""
Return a list mapping the tokens to their actual word in the initial sentence for a fast tokenizer.
Args:
batch_index (`int`, *optional*, defaults to 0): The index to access in the batch.
Returns:
`List[Optional[int]]`: A list indicating the word corresponding to each token. Special tokens added by the
tokenizer are mapped to `None` and other tokens are mapped to the index of their corresponding word
(several tokens will be mapped to the same word index if they are parts of that word).
"""
if not self._encodings:
raise ValueError(
"words() is not available when using non-fast tokenizers (e.g. instance of a `XxxTokenizerFast`"
" class)."
)
warnings.warn(
"`BatchEncoding.words()` property is deprecated and should be replaced with the identical, "
"but more self-explanatory `BatchEncoding.word_ids()` property.",
FutureWarning,
)
return self.word_ids(batch_index)
def word_ids(self, batch_index: int = 0) -> List[Optional[int]]:
"""
Return a list mapping the tokens to their actual word in the initial sentence for a fast tokenizer.
Args:
batch_index (`int`, *optional*, defaults to 0): The index to access in the batch.
Returns:
`List[Optional[int]]`: A list indicating the word corresponding to each token. Special tokens added by the
tokenizer are mapped to `None` and other tokens are mapped to the index of their corresponding word
(several tokens will be mapped to the same word index if they are parts of that word).
"""
if not self._encodings:
raise ValueError(
"word_ids() is not available when using non-fast tokenizers (e.g. instance of a `XxxTokenizerFast`"
" class)."
)
return self._encodings[batch_index].word_ids
def token_to_sequence(self, batch_or_token_index: int, token_index: Optional[int] = None) -> int:
"""
Get the index of the sequence represented by the given token. In the general use case, this method returns `0`
for a single sequence or the first sequence of a pair, and `1` for the second sequence of a pair
Can be called as:
- `self.token_to_sequence(token_index)` if batch size is 1
- `self.token_to_sequence(batch_index, token_index)` if batch size is greater than 1
This method is particularly suited when the input sequences are provided as pre-tokenized sequences (i.e.,
words are defined by the user). In this case it allows to easily associate encoded tokens with provided
tokenized words.
Args:
batch_or_token_index (`int`):
Index of the sequence in the batch. If the batch only comprises one sequence, this can be the index of
the token in the sequence.
token_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the token in the
sequence.
Returns:
`int`: Index of the word in the input sequence.
"""
if not self._encodings:
raise ValueError("token_to_sequence() is not available when using Python based tokenizers")
if token_index is not None:
batch_index = batch_or_token_index
else:
batch_index = 0
token_index = batch_or_token_index
if batch_index < 0:
batch_index = self._batch_size + batch_index
if token_index < 0:
token_index = self._seq_len + token_index
return self._encodings[batch_index].token_to_sequence(token_index)
def token_to_word(self, batch_or_token_index: int, token_index: Optional[int] = None) -> int:
"""
Get the index of the word corresponding (i.e. comprising) to an encoded token in a sequence of the batch.
Can be called as:
- `self.token_to_word(token_index)` if batch size is 1
- `self.token_to_word(batch_index, token_index)` if batch size is greater than 1
This method is particularly suited when the input sequences are provided as pre-tokenized sequences (i.e.,
words are defined by the user). In this case it allows to easily associate encoded tokens with provided
tokenized words.
Args:
batch_or_token_index (`int`):
Index of the sequence in the batch. If the batch only comprise one sequence, this can be the index of
the token in the sequence.
token_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the token in the
sequence.
Returns:
`int`: Index of the word in the input sequence.
"""
if not self._encodings:
raise ValueError("token_to_word() is not available when using Python based tokenizers")
if token_index is not None:
batch_index = batch_or_token_index
else:
batch_index = 0
token_index = batch_or_token_index
if batch_index < 0:
batch_index = self._batch_size + batch_index
if token_index < 0:
token_index = self._seq_len + token_index
return self._encodings[batch_index].token_to_word(token_index)
def word_to_tokens(
self, batch_or_word_index: int, word_index: Optional[int] = None, sequence_index: int = 0
) -> Optional[TokenSpan]:
"""
Get the encoded token span corresponding to a word in a sequence of the batch.
Token spans are returned as a [`~tokenization_utils_base.TokenSpan`] with:
- **start** -- Index of the first token.
- **end** -- Index of the token following the last token.
Can be called as:
- `self.word_to_tokens(word_index, sequence_index: int = 0)` if batch size is 1
- `self.word_to_tokens(batch_index, word_index, sequence_index: int = 0)` if batch size is greater or equal to
1
This method is particularly suited when the input sequences are provided as pre-tokenized sequences (i.e. words
are defined by the user). In this case it allows to easily associate encoded tokens with provided tokenized
words.
Args:
batch_or_word_index (`int`):
Index of the sequence in the batch. If the batch only comprises one sequence, this can be the index of
the word in the sequence.
word_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the word in the
sequence.
sequence_index (`int`, *optional*, defaults to 0):
If pair of sequences are encoded in the batch this can be used to specify which sequence in the pair (0
or 1) the provided word index belongs to.
Returns:
([`~tokenization_utils_base.TokenSpan`], *optional*): Span of tokens in the encoded sequence. Returns
`None` if no tokens correspond to the word. This can happen especially when the token is a special token
that has been used to format the tokenization. For example when we add a class token at the very beginning
of the tokenization.
"""
if not self._encodings:
raise ValueError("word_to_tokens() is not available when using Python based tokenizers")
if word_index is not None:
batch_index = batch_or_word_index
else:
batch_index = 0
word_index = batch_or_word_index
if batch_index < 0:
batch_index = self._batch_size + batch_index
if word_index < 0:
word_index = self._seq_len + word_index
span = self._encodings[batch_index].word_to_tokens(word_index, sequence_index)
return TokenSpan(*span) if span is not None else None
def token_to_chars(self, batch_or_token_index: int, token_index: Optional[int] = None) -> CharSpan:
"""
Get the character span corresponding to an encoded token in a sequence of the batch.
Character spans are returned as a [`~tokenization_utils_base.CharSpan`] with:
- **start** -- Index of the first character in the original string associated to the token.
- **end** -- Index of the character following the last character in the original string associated to the
token.
Can be called as:
- `self.token_to_chars(token_index)` if batch size is 1
- `self.token_to_chars(batch_index, token_index)` if batch size is greater or equal to 1
Args:
batch_or_token_index (`int`):
Index of the sequence in the batch. If the batch only comprise one sequence, this can be the index of
the token in the sequence.
token_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the token or tokens in
the sequence.
Returns:
[`~tokenization_utils_base.CharSpan`]: Span of characters in the original string, or None, if the token
(e.g. <s>, </s>) doesn't correspond to any chars in the origin string.
"""
if not self._encodings:
raise ValueError("token_to_chars() is not available when using Python based tokenizers")
if token_index is not None:
batch_index = batch_or_token_index
else:
batch_index = 0
token_index = batch_or_token_index
span_indices = self._encodings[batch_index].token_to_chars(token_index)
return CharSpan(*span_indices) if span_indices is not None else None
def char_to_token(
self, batch_or_char_index: int, char_index: Optional[int] = None, sequence_index: int = 0
) -> int:
"""
Get the index of the token in the encoded output comprising a character in the original string for a sequence
of the batch.
Can be called as:
- `self.char_to_token(char_index)` if batch size is 1
- `self.char_to_token(batch_index, char_index)` if batch size is greater or equal to 1
This method is particularly suited when the input sequences are provided as pre-tokenized sequences (i.e. words
are defined by the user). In this case it allows to easily associate encoded tokens with provided tokenized
words.
Args:
batch_or_char_index (`int`):
Index of the sequence in the batch. If the batch only comprise one sequence, this can be the index of
the word in the sequence
char_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the word in the
sequence.
sequence_index (`int`, *optional*, defaults to 0):
If pair of sequences are encoded in the batch this can be used to specify which sequence in the pair (0
or 1) the provided character index belongs to.
Returns:
`int`: Index of the token.
"""
if not self._encodings:
raise ValueError("char_to_token() is not available when using Python based tokenizers")
if char_index is not None:
batch_index = batch_or_char_index
else:
batch_index = 0
char_index = batch_or_char_index
return self._encodings[batch_index].char_to_token(char_index, sequence_index)
def word_to_chars(
self, batch_or_word_index: int, word_index: Optional[int] = None, sequence_index: int = 0
) -> CharSpan:
"""
Get the character span in the original string corresponding to given word in a sequence of the batch.
Character spans are returned as a CharSpan NamedTuple with:
- start: index of the first character in the original string
- end: index of the character following the last character in the original string
Can be called as:
- `self.word_to_chars(word_index)` if batch size is 1
- `self.word_to_chars(batch_index, word_index)` if batch size is greater or equal to 1
Args:
batch_or_word_index (`int`):
Index of the sequence in the batch. If the batch only comprise one sequence, this can be the index of
the word in the sequence
word_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the word in the
sequence.
sequence_index (`int`, *optional*, defaults to 0):
If pair of sequences are encoded in the batch this can be used to specify which sequence in the pair (0
or 1) the provided word index belongs to.
Returns:
`CharSpan` or `List[CharSpan]`: Span(s) of the associated character or characters in the string. CharSpan
are NamedTuple with:
- start: index of the first character associated to the token in the original string
- end: index of the character following the last character associated to the token in the original
string
"""
if not self._encodings:
raise ValueError("word_to_chars() is not available when using Python based tokenizers")
if word_index is not None:
batch_index = batch_or_word_index
else:
batch_index = 0
word_index = batch_or_word_index
return CharSpan(*(self._encodings[batch_index].word_to_chars(word_index, sequence_index)))
def char_to_word(self, batch_or_char_index: int, char_index: Optional[int] = None, sequence_index: int = 0) -> int:
"""
Get the word in the original string corresponding to a character in the original string of a sequence of the
batch.
Can be called as:
- `self.char_to_word(char_index)` if batch size is 1
- `self.char_to_word(batch_index, char_index)` if batch size is greater than 1
This method is particularly suited when the input sequences are provided as pre-tokenized sequences (i.e. words
are defined by the user). In this case it allows to easily associate encoded tokens with provided tokenized
words.
Args:
batch_or_char_index (`int`):
Index of the sequence in the batch. If the batch only comprise one sequence, this can be the index of
the character in the original string.
char_index (`int`, *optional*):
If a batch index is provided in *batch_or_token_index*, this can be the index of the character in the
original string.
sequence_index (`int`, *optional*, defaults to 0):
If pair of sequences are encoded in the batch this can be used to specify which sequence in the pair (0
or 1) the provided character index belongs to.
Returns:
`int` or `List[int]`: Index or indices of the associated encoded token(s).
"""
if not self._encodings:
raise ValueError("char_to_word() is not available when using Python based tokenizers")
if char_index is not None:
batch_index = batch_or_char_index
else:
batch_index = 0
char_index = batch_or_char_index
return self._encodings[batch_index].char_to_word(char_index, sequence_index)
def convert_to_tensors(
self, tensor_type: Optional[Union[str, TensorType]] = None, prepend_batch_axis: bool = False
):
"""
Convert the inner content to tensors.
Args:
tensor_type (`str` or [`~utils.TensorType`], *optional*):
The type of tensors to use. If `str`, should be one of the values of the enum [`~utils.TensorType`]. If
`None`, no modification is done.
prepend_batch_axis (`int`, *optional*, defaults to `False`):
Whether or not to add the batch dimension during the conversion.
"""
if tensor_type is None:
return self
# Convert to TensorType
if not isinstance(tensor_type, TensorType):
tensor_type = TensorType(tensor_type)
# Get a function reference for the correct framework
if tensor_type == TensorType.TENSORFLOW:
if not is_tf_available():
raise ImportError(
"Unable to convert output to TensorFlow tensors format, TensorFlow is not installed."
)
import tensorflow as tf
as_tensor = tf.constant
is_tensor = tf.is_tensor
elif tensor_type == TensorType.PYTORCH:
if not is_torch_available():
raise ImportError("Unable to convert output to PyTorch tensors format, PyTorch is not installed.")
import torch
is_tensor = torch.is_tensor
def as_tensor(value, dtype=None):
if isinstance(value, list) and isinstance(value[0], np.ndarray):
return torch.tensor(np.array(value))
return torch.tensor(value)
elif tensor_type == TensorType.JAX:
if not is_flax_available():
raise ImportError("Unable to convert output to JAX tensors format, JAX is not installed.")
import jax.numpy as jnp # noqa: F811
as_tensor = jnp.array
is_tensor = is_jax_tensor
elif tensor_type == TensorType.MLX:
if not is_mlx_available():
raise ImportError("Unable to convert output to MLX tensors format, MLX is not installed.")
import mlx.core as mx
as_tensor = mx.array
def is_tensor(obj):
return isinstance(obj, mx.array)
else:
def as_tensor(value, dtype=None):
if isinstance(value, (list, tuple)) and isinstance(value[0], (list, tuple, np.ndarray)):
value_lens = [len(val) for val in value]
if len(set(value_lens)) > 1 and dtype is None:
# we have a ragged list so handle explicitly
value = as_tensor([np.asarray(val) for val in value], dtype=object)
return np.asarray(value, dtype=dtype)
is_tensor = is_numpy_array
# Do the tensor conversion in batch
for key, value in self.items():
try:
if prepend_batch_axis:
value = [value]
if not is_tensor(value):
tensor = as_tensor(value)
# Removing this for now in favor of controlling the shape with `prepend_batch_axis`
# # at-least2d
# if tensor.ndim > 2:
# tensor = tensor.squeeze(0)
# elif tensor.ndim < 2:
# tensor = tensor[None, :]
self[key] = tensor
except Exception as e:
if key == "overflowing_tokens":
raise ValueError(
"Unable to create tensor returning overflowing tokens of different lengths. "
"Please see if a fast version of this tokenizer is available to have this feature available."
) from e
raise ValueError(
"Unable to create tensor, you should probably activate truncation and/or padding with"
" 'padding=True' 'truncation=True' to have batched tensors with the same length. Perhaps your"
f" features (`{key}` in this case) have excessive nesting (inputs type `list` where type `int` is"
" expected)."
) from e
return self
def to(self, device: Union[str, "torch.device"]) -> "BatchEncoding":
"""
Send all values to device by calling `v.to(device)` (PyTorch only).
Args:
device (`str` or `torch.device`): The device to put the tensors on.
Returns:
[`BatchEncoding`]: The same instance after modification.
"""
requires_backends(self, ["torch"])
# This check catches things like APEX blindly calling "to" on all inputs to a module
# Otherwise it passes the casts down and casts the LongTensor containing the token idxs
# into a HalfTensor
if isinstance(device, str) or is_torch_device(device) or isinstance(device, int):
self.data = {k: v.to(device=device) for k, v in self.data.items()}
else:
logger.warning(f"Attempting to cast a BatchEncoding to type {str(device)}. This is not supported.")
return self
class SpecialTokensMixin:
"""
A mixin derived by [`PreTrainedTokenizer`] and [`PreTrainedTokenizerFast`] to handle specific behaviors related to
special tokens. In particular, this class hold the attributes which can be used to directly access these special
tokens in a model-independent manner and allow to set and update the special tokens.
Args:
bos_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the beginning of a sentence.
eos_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the end of a sentence.
unk_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing an out-of-vocabulary token.
sep_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token separating two different sentences in the same input (used by BERT for instance).
pad_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token used to make arrays of tokens the same size for batching purpose. Will then be ignored by
attention mechanisms or loss computation.
cls_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the class of the input (used by BERT for instance).
mask_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing a masked token (used by masked-language modeling pretraining objectives, like
BERT).
additional_special_tokens (tuple or list of `str` or `tokenizers.AddedToken`, *optional*):
A tuple or a list of additional tokens, which will be marked as `special`, meaning that they will be
skipped when decoding if `skip_special_tokens` is set to `True`.
"""
SPECIAL_TOKENS_ATTRIBUTES = [
"bos_token",
"eos_token",
"unk_token",
"sep_token",
"pad_token",
"cls_token",
"mask_token",
"additional_special_tokens",
]
def __init__(self, verbose=False, **kwargs):
self._bos_token = None
self._eos_token = None
self._unk_token = None
self._sep_token = None
self._pad_token = None
self._cls_token = None
self._mask_token = None
self._pad_token_type_id = 0
self._additional_special_tokens = []
self.verbose = verbose
# We directly set the hidden value to allow initialization with special tokens
# which are not yet in the vocabulary. Necessary for serialization/de-serialization
# TODO clean this up at some point (probably by switching to fast tokenizers)
for key, value in kwargs.items():
if value is None:
continue
if key in self.SPECIAL_TOKENS_ATTRIBUTES:
if key == "additional_special_tokens":
assert isinstance(value, (list, tuple)), f"Value {value} is not a list or tuple"
assert all(
isinstance(t, (str, AddedToken)) for t in value
), "One of the tokens is not a string or an AddedToken"
setattr(self, key, value)
elif isinstance(value, (str, AddedToken)):
setattr(self, key, value)
else:
raise TypeError(f"Special token {key} has to be either str or AddedToken but got: {type(value)}")
def sanitize_special_tokens(self) -> int:
"""
The `sanitize_special_tokens` is now deprecated kept for backward compatibility and will be removed in
transformers v5.
"""
logger.warning_once("The `sanitize_special_tokens` will be removed in transformers v5.")
return self.add_tokens(self.all_special_tokens_extended, special_tokens=True)
def add_special_tokens(
self, special_tokens_dict: Dict[str, Union[str, AddedToken]], replace_additional_special_tokens=True
) -> int:
"""
Add a dictionary of special tokens (eos, pad, cls, etc.) to the encoder and link them to class attributes. If
special tokens are NOT in the vocabulary, they are added to it (indexed starting from the last index of the
current vocabulary).
When adding new tokens to the vocabulary, you should make sure to also resize the token embedding matrix of the
model so that its embedding matrix matches the tokenizer.
In order to do that, please use the [`~PreTrainedModel.resize_token_embeddings`] method.
Using `add_special_tokens` will ensure your special tokens can be used in several ways:
- Special tokens can be skipped when decoding using `skip_special_tokens = True`.
- Special tokens are carefully handled by the tokenizer (they are never split), similar to `AddedTokens`.
- You can easily refer to special tokens using tokenizer class attributes like `tokenizer.cls_token`. This
makes it easy to develop model-agnostic training and fine-tuning scripts.
When possible, special tokens are already registered for provided pretrained models (for instance
[`BertTokenizer`] `cls_token` is already registered to be :obj*'[CLS]'* and XLM's one is also registered to be
`'</s>'`).
Args:
special_tokens_dict (dictionary *str* to *str* or `tokenizers.AddedToken`):
Keys should be in the list of predefined special attributes: [`bos_token`, `eos_token`, `unk_token`,
`sep_token`, `pad_token`, `cls_token`, `mask_token`, `additional_special_tokens`].
Tokens are only added if they are not already in the vocabulary (tested by checking if the tokenizer
assign the index of the `unk_token` to them).
replace_additional_special_tokens (`bool`, *optional*,, defaults to `True`):
If `True`, the existing list of additional special tokens will be replaced by the list provided in
`special_tokens_dict`. Otherwise, `self._additional_special_tokens` is just extended. In the former
case, the tokens will NOT be removed from the tokenizer's full vocabulary - they are only being flagged
as non-special tokens. Remember, this only affects which tokens are skipped during decoding, not the
`added_tokens_encoder` and `added_tokens_decoder`. This means that the previous
`additional_special_tokens` are still added tokens, and will not be split by the model.
Returns:
`int`: Number of tokens added to the vocabulary.
Examples:
```python
# Let's see how to add a new classification token to GPT-2
tokenizer = GPT2Tokenizer.from_pretrained("openai-community/gpt2")
model = GPT2Model.from_pretrained("openai-community/gpt2")
special_tokens_dict = {"cls_token": "<CLS>"}
num_added_toks = tokenizer.add_special_tokens(special_tokens_dict)
print("We have added", num_added_toks, "tokens")
# Notice: resize_token_embeddings expect to receive the full size of the new vocabulary, i.e., the length of the tokenizer.
model.resize_token_embeddings(len(tokenizer))
assert tokenizer.cls_token == "<CLS>"
```"""
if not special_tokens_dict:
return 0
added_tokens = []
for key, value in special_tokens_dict.items():
assert key in self.SPECIAL_TOKENS_ATTRIBUTES, f"Key {key} is not a special token"
if self.verbose:
logger.info(f"Assigning {value} to the {key} key of the tokenizer")
if key == "additional_special_tokens":
assert isinstance(value, (list, tuple)) and all(
isinstance(t, (str, AddedToken)) for t in value
), f"Tokens {value} for key {key} should all be str or AddedToken instances"
to_add = []
for token in value:
if isinstance(token, str):
# for legacy purpose we default to stripping. `test_add_tokens_tokenizer` depends on this
token = AddedToken(token, rstrip=False, lstrip=False, normalized=False, special=True)
if not replace_additional_special_tokens and str(token) in self.additional_special_tokens:
continue
to_add.append(token)
if replace_additional_special_tokens and len(to_add) > 0:
setattr(self, key, list(to_add))
else:
self._additional_special_tokens.extend(to_add)
added_tokens += to_add
else:
if not isinstance(value, (str, AddedToken)):
raise ValueError(f"Token {value} for key {key} should be a str or an AddedToken instance")
if isinstance(value, (str)):
# for legacy purpose we default to stripping. `False` depends on this
value = AddedToken(value, rstrip=False, lstrip=False, normalized=False, special=True)
if isinstance(value, AddedToken):
setattr(self, key, value)
if value not in added_tokens:
added_tokens.append(value)
# if we are adding tokens that were not part of the vocab, we ought to add them
added_tokens = self.add_tokens(added_tokens, special_tokens=True)
return added_tokens
def add_tokens(
self, new_tokens: Union[str, AddedToken, List[Union[str, AddedToken]]], special_tokens: bool = False
) -> int:
"""
Add a list of new tokens to the tokenizer class. If the new tokens are not in the vocabulary, they are added to
it with indices starting from length of the current vocabulary and and will be isolated before the tokenization
algorithm is applied. Added tokens and tokens from the vocabulary of the tokenization algorithm are therefore
not treated in the same way.
Note, when adding new tokens to the vocabulary, you should make sure to also resize the token embedding matrix
of the model so that its embedding matrix matches the tokenizer.
In order to do that, please use the [`~PreTrainedModel.resize_token_embeddings`] method.
Args:
new_tokens (`str`, `tokenizers.AddedToken` or a list of *str* or `tokenizers.AddedToken`):
Tokens are only added if they are not already in the vocabulary. `tokenizers.AddedToken` wraps a string
token to let you personalize its behavior: whether this token should only match against a single word,
whether this token should strip all potential whitespaces on the left side, whether this token should
strip all potential whitespaces on the right side, etc.
special_tokens (`bool`, *optional*, defaults to `False`):
Can be used to specify if the token is a special token. This mostly change the normalization behavior
(special tokens like CLS or [MASK] are usually not lower-cased for instance).
See details for `tokenizers.AddedToken` in HuggingFace tokenizers library.
Returns:
`int`: Number of tokens added to the vocabulary.
Examples:
```python
# Let's see how to increase the vocabulary of Bert model and tokenizer
tokenizer = BertTokenizerFast.from_pretrained("google-bert/bert-base-uncased")
model = BertModel.from_pretrained("google-bert/bert-base-uncased")
num_added_toks = tokenizer.add_tokens(["new_tok1", "my_new-tok2"])
print("We have added", num_added_toks, "tokens")
# Notice: resize_token_embeddings expect to receive the full size of the new vocabulary, i.e., the length of the tokenizer.
model.resize_token_embeddings(len(tokenizer))
```"""
if not new_tokens:
return 0
if not isinstance(new_tokens, (list, tuple)):
new_tokens = [new_tokens]
return self._add_tokens(new_tokens, special_tokens=special_tokens)
def _add_tokens(self, new_tokens: Union[List[str], List[AddedToken]], special_tokens: bool = False) -> int:
raise NotImplementedError
@property
def bos_token(self) -> str:
"""
`str`: Beginning of sentence token. Log an error if used while not having been set.
"""
if self._bos_token is None:
if self.verbose:
logger.error("Using bos_token, but it is not set yet.")
return None
return str(self._bos_token)
@property
def eos_token(self) -> str:
"""
`str`: End of sentence token. Log an error if used while not having been set.
"""
if self._eos_token is None:
if self.verbose:
logger.error("Using eos_token, but it is not set yet.")
return None
return str(self._eos_token)
@property
def unk_token(self) -> str:
"""
`str`: Unknown token. Log an error if used while not having been set.
"""
if self._unk_token is None:
if self.verbose:
logger.error("Using unk_token, but it is not set yet.")
return None
return str(self._unk_token)
@property
def sep_token(self) -> str:
"""
`str`: Separation token, to separate context and query in an input sequence. Log an error if used while not
having been set.
"""
if self._sep_token is None:
if self.verbose:
logger.error("Using sep_token, but it is not set yet.")
return None
return str(self._sep_token)
@property
def pad_token(self) -> str:
"""
`str`: Padding token. Log an error if used while not having been set.
"""
if self._pad_token is None:
if self.verbose:
logger.error("Using pad_token, but it is not set yet.")
return None
return str(self._pad_token)
@property
def cls_token(self) -> str:
"""
`str`: Classification token, to extract a summary of an input sequence leveraging self-attention along the full
depth of the model. Log an error if used while not having been set.
"""
if self._cls_token is None:
if self.verbose:
logger.error("Using cls_token, but it is not set yet.")
return None
return str(self._cls_token)
@property
def mask_token(self) -> str:
"""
`str`: Mask token, to use when training a model with masked-language modeling. Log an error if used while not
having been set.
"""
if self._mask_token is None:
if self.verbose:
logger.error("Using mask_token, but it is not set yet.")
return None
return str(self._mask_token)
@property
def additional_special_tokens(self) -> List[str]:
"""
`List[str]`: All the additional special tokens you may want to use. Log an error if used while not having been
set.
"""
if self._additional_special_tokens is None:
if self.verbose:
logger.error("Using additional_special_tokens, but it is not set yet.")
return None
return [str(tok) for tok in self._additional_special_tokens]
@bos_token.setter
def bos_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the BOS token")
self._bos_token = value
@eos_token.setter
def eos_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the EOS token")
self._eos_token = value
@unk_token.setter
def unk_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the UNK token")
self._unk_token = value
@sep_token.setter
def sep_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the SEP token")
self._sep_token = value
@pad_token.setter
def pad_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the PAD token")
self._pad_token = value
@cls_token.setter
def cls_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the CLS token")
self._cls_token = value
@mask_token.setter
def mask_token(self, value):
if not isinstance(value, (str, AddedToken)) and value is not None:
raise ValueError("Cannot set a non-string value as the MASK token")
self._mask_token = value
@additional_special_tokens.setter
def additional_special_tokens(self, value):
self._additional_special_tokens = value if value is not None else None
@property
def bos_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the beginning of sentence token in the vocabulary. Returns `None` if the token has not
been set.
"""
if self._bos_token is None:
return None
return self.convert_tokens_to_ids(self.bos_token)
@property
def eos_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the end of sentence token in the vocabulary. Returns `None` if the token has not been
set.
"""
if self._eos_token is None:
return None
return self.convert_tokens_to_ids(self.eos_token)
@property
def unk_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the unknown token in the vocabulary. Returns `None` if the token has not been set.
"""
if self._unk_token is None:
return None
return self.convert_tokens_to_ids(self.unk_token)
@property
def sep_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the separation token in the vocabulary, to separate context and query in an input
sequence. Returns `None` if the token has not been set.
"""
if self._sep_token is None:
return None
return self.convert_tokens_to_ids(self.sep_token)
@property
def pad_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the padding token in the vocabulary. Returns `None` if the token has not been set.
"""
if self._pad_token is None:
return None
return self.convert_tokens_to_ids(self.pad_token)
@property
def pad_token_type_id(self) -> int:
"""
`int`: Id of the padding token type in the vocabulary.
"""
return self._pad_token_type_id
@property
def cls_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the classification token in the vocabulary, to extract a summary of an input sequence
leveraging self-attention along the full depth of the model.
Returns `None` if the token has not been set.
"""
if self._cls_token is None:
return None
return self.convert_tokens_to_ids(self.cls_token)
@property
def mask_token_id(self) -> Optional[int]:
"""
`Optional[int]`: Id of the mask token in the vocabulary, used when training a model with masked-language
modeling. Returns `None` if the token has not been set.
"""
if self._mask_token is None:
return None
return self.convert_tokens_to_ids(self.mask_token)
@property
def additional_special_tokens_ids(self) -> List[int]:
"""
`List[int]`: Ids of all the additional special tokens in the vocabulary. Log an error if used while not having
been set.
"""
return self.convert_tokens_to_ids(self.additional_special_tokens)
@bos_token_id.setter
def bos_token_id(self, value):
self._bos_token = self.convert_ids_to_tokens(value) if value is not None else None
@eos_token_id.setter
def eos_token_id(self, value):
self._eos_token = self.convert_ids_to_tokens(value) if value is not None else None
@unk_token_id.setter
def unk_token_id(self, value):
self._unk_token = self.convert_ids_to_tokens(value) if value is not None else None
@sep_token_id.setter
def sep_token_id(self, value):
self._sep_token = self.convert_ids_to_tokens(value) if value is not None else None
@pad_token_id.setter
def pad_token_id(self, value):
self._pad_token = self.convert_ids_to_tokens(value) if value is not None else None
@cls_token_id.setter
def cls_token_id(self, value):
self._cls_token = self.convert_ids_to_tokens(value) if value is not None else None
@mask_token_id.setter
def mask_token_id(self, value):
self._mask_token = self.convert_ids_to_tokens(value) if value is not None else None
@additional_special_tokens_ids.setter
def additional_special_tokens_ids(self, values):
self._additional_special_tokens = [self.convert_ids_to_tokens(value) for value in values]
@property
def special_tokens_map(self) -> Dict[str, Union[str, List[str]]]:
"""
`Dict[str, Union[str, List[str]]]`: A dictionary mapping special token class attributes (`cls_token`,
`unk_token`, etc.) to their values (`'<unk>'`, `'<cls>'`, etc.).
Convert potential tokens of `tokenizers.AddedToken` type to string.
"""
set_attr = {}
for attr in self.SPECIAL_TOKENS_ATTRIBUTES:
attr_value = getattr(self, attr)
if attr_value:
set_attr[attr] = attr_value
return set_attr
@property
def special_tokens_map_extended(self) -> Dict[str, Union[str, AddedToken, List[Union[str, AddedToken]]]]:
"""
`Dict[str, Union[str, tokenizers.AddedToken, List[Union[str, tokenizers.AddedToken]]]]`: A dictionary mapping
special token class attributes (`cls_token`, `unk_token`, etc.) to their values (`'<unk>'`, `'<cls>'`, etc.).
Don't convert tokens of `tokenizers.AddedToken` type to string so they can be used to control more finely how
special tokens are tokenized.
"""
set_attr = {}
for attr in self.SPECIAL_TOKENS_ATTRIBUTES:
attr_value = getattr(self, "_" + attr)
if attr_value:
set_attr[attr] = attr_value
return set_attr
@property
def all_special_tokens_extended(self) -> List[Union[str, AddedToken]]:
"""
`List[Union[str, tokenizers.AddedToken]]`: All the special tokens (`'<unk>'`, `'<cls>'`, etc.), the order has
nothing to do with the index of each tokens. If you want to know the correct indices, check
`self.added_tokens_encoder`. We can't create an order anymore as the keys are `AddedTokens` and not `Strings`.
Don't convert tokens of `tokenizers.AddedToken` type to string so they can be used to control more finely how
special tokens are tokenized.
"""
all_tokens = []
seen = set()
for value in self.special_tokens_map_extended.values():
if isinstance(value, (list, tuple)):
tokens_to_add = [token for token in value if str(token) not in seen]
else:
tokens_to_add = [value] if str(value) not in seen else []
seen.update(map(str, tokens_to_add))
all_tokens.extend(tokens_to_add)
return all_tokens
@property
def all_special_tokens(self) -> List[str]:
"""
`List[str]`: A list of the unique special tokens (`'<unk>'`, `'<cls>'`, ..., etc.).
Convert tokens of `tokenizers.AddedToken` type to string.
"""
all_toks = [str(s) for s in self.all_special_tokens_extended]
return all_toks
@property
def all_special_ids(self) -> List[int]:
"""
`List[int]`: List the ids of the special tokens(`'<unk>'`, `'<cls>'`, etc.) mapped to class attributes.
"""
all_toks = self.all_special_tokens
all_ids = self.convert_tokens_to_ids(all_toks)
return all_ids
ENCODE_KWARGS_DOCSTRING = r"""
add_special_tokens (`bool`, *optional*, defaults to `True`):
Whether or not to add special tokens when encoding the sequences. This will use the underlying
`PretrainedTokenizerBase.build_inputs_with_special_tokens` function, which defines which tokens are
automatically added to the input ids. This is usefull if you want to add `bos` or `eos` tokens
automatically.
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `False`):
Activates and controls padding. Accepts the following values:
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
acceptable input length for the model if that argument is not provided.
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
lengths).
truncation (`bool`, `str` or [`~tokenization_utils_base.TruncationStrategy`], *optional*, defaults to `False`):
Activates and controls truncation. Accepts the following values:
- `True` or `'longest_first'`: Truncate to a maximum length specified with the argument `max_length` or
to the maximum acceptable input length for the model if that argument is not provided. This will
truncate token by token, removing a token from the longest sequence in the pair if a pair of
sequences (or a batch of pairs) is provided.
- `'only_first'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the first sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `'only_second'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the second sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `False` or `'do_not_truncate'` (default): No truncation (i.e., can output batch with sequence lengths
greater than the model maximum admissible input size).
max_length (`int`, *optional*):
Controls the maximum length to use by one of the truncation/padding parameters.
If left unset or set to `None`, this will use the predefined model maximum length if a maximum length
is required by one of the truncation/padding parameters. If the model has no specific maximum input
length (like XLNet) truncation/padding to a maximum length will be deactivated.
stride (`int`, *optional*, defaults to 0):
If set to a number along with `max_length`, the overflowing tokens returned when
`return_overflowing_tokens=True` will contain some tokens from the end of the truncated sequence
returned to provide some overlap between truncated and overflowing sequences. The value of this
argument defines the number of overlapping tokens.
is_split_into_words (`bool`, *optional*, defaults to `False`):
Whether or not the input is already pre-tokenized (e.g., split into words). If set to `True`, the
tokenizer assumes the input is already split into words (for instance, by splitting it on whitespace)
which it will tokenize. This is useful for NER or token classification.
pad_to_multiple_of (`int`, *optional*):
If set will pad the sequence to a multiple of the provided value. Requires `padding` to be activated.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
`>= 7.5` (Volta).
return_tensors (`str` or [`~utils.TensorType`], *optional*):
If set, will return tensors instead of list of python integers. Acceptable values are:
- `'tf'`: Return TensorFlow `tf.constant` objects.
- `'pt'`: Return PyTorch `torch.Tensor` objects.
- `'np'`: Return Numpy `np.ndarray` objects.
"""
ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING = r"""
return_token_type_ids (`bool`, *optional*):
Whether to return token type IDs. If left to the default, will return the token type IDs according to
the specific tokenizer's default, defined by the `return_outputs` attribute.
[What are token type IDs?](../glossary#token-type-ids)
return_attention_mask (`bool`, *optional*):
Whether to return the attention mask. If left to the default, will return the attention mask according
to the specific tokenizer's default, defined by the `return_outputs` attribute.
[What are attention masks?](../glossary#attention-mask)
return_overflowing_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to return overflowing token sequences. If a pair of sequences of input ids (or a batch
of pairs) is provided with `truncation_strategy = longest_first` or `True`, an error is raised instead
of returning overflowing tokens.
return_special_tokens_mask (`bool`, *optional*, defaults to `False`):
Whether or not to return special tokens mask information.
return_offsets_mapping (`bool`, *optional*, defaults to `False`):
Whether or not to return `(char_start, char_end)` for each token.
This is only available on fast tokenizers inheriting from [`PreTrainedTokenizerFast`], if using
Python's tokenizer, this method will raise `NotImplementedError`.
return_length (`bool`, *optional*, defaults to `False`):
Whether or not to return the lengths of the encoded inputs.
verbose (`bool`, *optional*, defaults to `True`):
Whether or not to print more information and warnings.
**kwargs: passed to the `self.tokenize()` method
Return:
[`BatchEncoding`]: A [`BatchEncoding`] with the following fields:
- **input_ids** -- List of token ids to be fed to a model.
[What are input IDs?](../glossary#input-ids)
- **token_type_ids** -- List of token type ids to be fed to a model (when `return_token_type_ids=True` or
if *"token_type_ids"* is in `self.model_input_names`).
[What are token type IDs?](../glossary#token-type-ids)
- **attention_mask** -- List of indices specifying which tokens should be attended to by the model (when
`return_attention_mask=True` or if *"attention_mask"* is in `self.model_input_names`).
[What are attention masks?](../glossary#attention-mask)
- **overflowing_tokens** -- List of overflowing tokens sequences (when a `max_length` is specified and
`return_overflowing_tokens=True`).
- **num_truncated_tokens** -- Number of tokens truncated (when a `max_length` is specified and
`return_overflowing_tokens=True`).
- **special_tokens_mask** -- List of 0s and 1s, with 1 specifying added special tokens and 0 specifying
regular sequence tokens (when `add_special_tokens=True` and `return_special_tokens_mask=True`).
- **length** -- The length of the inputs (when `return_length=True`)
"""
INIT_TOKENIZER_DOCSTRING = r"""
Class attributes (overridden by derived classes)
- **vocab_files_names** (`Dict[str, str]`) -- A dictionary with, as keys, the `__init__` keyword name of each
vocabulary file required by the model, and as associated values, the filename for saving the associated file
(string).
- **pretrained_vocab_files_map** (`Dict[str, Dict[str, str]]`) -- A dictionary of dictionaries, with the
high-level keys being the `__init__` keyword name of each vocabulary file required by the model, the
low-level being the `short-cut-names` of the pretrained models with, as associated values, the `url` to the
associated pretrained vocabulary file.
- **model_input_names** (`List[str]`) -- A list of inputs expected in the forward pass of the model.
- **padding_side** (`str`) -- The default value for the side on which the model should have padding applied.
Should be `'right'` or `'left'`.
- **truncation_side** (`str`) -- The default value for the side on which the model should have truncation
applied. Should be `'right'` or `'left'`.
Args:
model_max_length (`int`, *optional*):
The maximum length (in number of tokens) for the inputs to the transformer model. When the tokenizer is
loaded with [`~tokenization_utils_base.PreTrainedTokenizerBase.from_pretrained`], this will be set to the
value stored for the associated model in `max_model_input_sizes` (see above). If no value is provided, will
default to VERY_LARGE_INTEGER (`int(1e30)`).
padding_side (`str`, *optional*):
The side on which the model should have padding applied. Should be selected between ['right', 'left'].
Default value is picked from the class attribute of the same name.
truncation_side (`str`, *optional*):
The side on which the model should have truncation applied. Should be selected between ['right', 'left'].
Default value is picked from the class attribute of the same name.
chat_template (`str`, *optional*):
A Jinja template string that will be used to format lists of chat messages. See
https://huggingface.co/docs/transformers/chat_templating for a full description.
model_input_names (`List[string]`, *optional*):
The list of inputs accepted by the forward pass of the model (like `"token_type_ids"` or
`"attention_mask"`). Default value is picked from the class attribute of the same name.
bos_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the beginning of a sentence. Will be associated to `self.bos_token` and
`self.bos_token_id`.
eos_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the end of a sentence. Will be associated to `self.eos_token` and
`self.eos_token_id`.
unk_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing an out-of-vocabulary token. Will be associated to `self.unk_token` and
`self.unk_token_id`.
sep_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token separating two different sentences in the same input (used by BERT for instance). Will be
associated to `self.sep_token` and `self.sep_token_id`.
pad_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token used to make arrays of tokens the same size for batching purpose. Will then be ignored by
attention mechanisms or loss computation. Will be associated to `self.pad_token` and `self.pad_token_id`.
cls_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing the class of the input (used by BERT for instance). Will be associated to
`self.cls_token` and `self.cls_token_id`.
mask_token (`str` or `tokenizers.AddedToken`, *optional*):
A special token representing a masked token (used by masked-language modeling pretraining objectives, like
BERT). Will be associated to `self.mask_token` and `self.mask_token_id`.
additional_special_tokens (tuple or list of `str` or `tokenizers.AddedToken`, *optional*):
A tuple or a list of additional special tokens. Add them here to ensure they are skipped when decoding with
`skip_special_tokens` is set to True. If they are not part of the vocabulary, they will be added at the end
of the vocabulary.
clean_up_tokenization_spaces (`bool`, *optional*, defaults to `True`):
Whether or not the model should cleanup the spaces that were added when splitting the input text during the
tokenization process.
split_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the special tokens should be split during the tokenization process. The default behavior is
to not split special tokens. This means that if `<s>` is the `bos_token`, then `tokenizer.tokenize("<s>") =
['<s>`]. Otherwise, if `split_special_tokens=True`, then `tokenizer.tokenize("<s>")` will be give `['<',
's', '>']`. This argument is only supported for `slow` tokenizers for the moment.
"""
@add_end_docstrings(INIT_TOKENIZER_DOCSTRING)
class PreTrainedTokenizerBase(SpecialTokensMixin, PushToHubMixin):
"""
Base class for [`PreTrainedTokenizer`] and [`PreTrainedTokenizerFast`].
Handles shared (mostly boiler plate) methods for those two classes.
"""
vocab_files_names: Dict[str, str] = {}
pretrained_vocab_files_map: Dict[str, Dict[str, str]] = {}
_auto_class: Optional[str] = None
# first name has to correspond to main model input name
# to make sure `tokenizer.pad(...)` works correctly
model_input_names: List[str] = ["input_ids", "token_type_ids", "attention_mask"]
padding_side: str = "right"
truncation_side: str = "right"
slow_tokenizer_class = None
def __init__(self, **kwargs):
# inputs and kwargs for saving and re-loading (see ``from_pretrained`` and ``save_pretrained``)
self.init_inputs = ()
self.init_kwargs = copy.deepcopy(kwargs)
self.name_or_path = kwargs.pop("name_or_path", "")
self._processor_class = kwargs.pop("processor_class", None)
# For backward compatibility we fallback to set model_max_length from max_len if provided
model_max_length = kwargs.pop("model_max_length", kwargs.pop("max_len", None))
self.model_max_length = model_max_length if model_max_length is not None else VERY_LARGE_INTEGER
# Padding and truncation side are right by default and overridden in subclasses. If specified in the kwargs, it
# is changed.
self.padding_side = kwargs.pop("padding_side", self.padding_side)
if self.padding_side not in ["right", "left"]:
raise ValueError(
f"Padding side should be selected between 'right' and 'left', current value: {self.padding_side}"
)
self.truncation_side = kwargs.pop("truncation_side", self.truncation_side)
if self.truncation_side not in ["right", "left"]:
raise ValueError(
f"Truncation side should be selected between 'right' and 'left', current value: {self.truncation_side}"
)
self.model_input_names = kwargs.pop("model_input_names", self.model_input_names)
# By default, cleaning tokenization spaces for both fast and slow tokenizers
self.clean_up_tokenization_spaces = kwargs.pop("clean_up_tokenization_spaces", True)
# By default, do not split special tokens for both fast and slow tokenizers
self.split_special_tokens = kwargs.pop("split_special_tokens", False)
self.deprecation_warnings = {} # Use to store when we have already noticed a deprecation warning (avoid overlogging).
self._in_target_context_manager = False
# Stores a Jinja template that formats chat histories into tokenizable strings
self.chat_template = kwargs.pop("chat_template", None)
if isinstance(self.chat_template, (list, tuple)):
# Chat templates are stored as lists of dicts with fixed key names,
# we reconstruct that into a single dict while loading them.
self.chat_template = {template["name"]: template["template"] for template in self.chat_template}
super().__init__(**kwargs)
@property
def max_len_single_sentence(self) -> int:
"""
`int`: The maximum length of a sentence that can be fed to the model.
"""
return self.model_max_length - self.num_special_tokens_to_add(pair=False)
@property
def max_len_sentences_pair(self) -> int:
"""
`int`: The maximum combined length of a pair of sentences that can be fed to the model.
"""
return self.model_max_length - self.num_special_tokens_to_add(pair=True)
@max_len_single_sentence.setter
def max_len_single_sentence(self, value) -> int:
# For backward compatibility, allow to try to setup 'max_len_single_sentence'.
if value == self.model_max_length - self.num_special_tokens_to_add(pair=False) and self.verbose:
if not self.deprecation_warnings.get("max_len_single_sentence", False):
logger.warning(
"Setting 'max_len_single_sentence' is now deprecated. This value is automatically set up."
)
self.deprecation_warnings["max_len_single_sentence"] = True
else:
raise ValueError(
"Setting 'max_len_single_sentence' is now deprecated. This value is automatically set up."
)
@max_len_sentences_pair.setter
def max_len_sentences_pair(self, value) -> int:
# For backward compatibility, allow to try to setup 'max_len_sentences_pair'.
if value == self.model_max_length - self.num_special_tokens_to_add(pair=True) and self.verbose:
if not self.deprecation_warnings.get("max_len_sentences_pair", False):
logger.warning(
"Setting 'max_len_sentences_pair' is now deprecated. This value is automatically set up."
)
self.deprecation_warnings["max_len_sentences_pair"] = True
else:
raise ValueError("Setting 'max_len_sentences_pair' is now deprecated. This value is automatically set up.")
def _set_processor_class(self, processor_class: str):
"""Sets processor class as an attribute."""
self._processor_class = processor_class
@property
def added_tokens_decoder(self) -> Dict[int, AddedToken]:
raise NotImplementedError()
def __repr__(self) -> str:
added_tokens_decoder_rep = "\n\t".join([f"{k}: {v.__repr__()}," for k, v in self.added_tokens_decoder.items()])
return (
f"{self.__class__.__name__}(name_or_path='{self.name_or_path}',"
f" vocab_size={self.vocab_size}, model_max_length={self.model_max_length}, is_fast={self.is_fast},"
f" padding_side='{self.padding_side}', truncation_side='{self.truncation_side}',"
f" special_tokens={self.special_tokens_map}, clean_up_tokenization_spaces={self.clean_up_tokenization_spaces}), "
" added_tokens_decoder={\n\t" + added_tokens_decoder_rep + "\n}"
)
def __len__(self) -> int:
raise NotImplementedError()
def get_vocab(self) -> Dict[str, int]:
"""
Returns the vocabulary as a dictionary of token to index.
`tokenizer.get_vocab()[token]` is equivalent to `tokenizer.convert_tokens_to_ids(token)` when `token` is in the
vocab.
Returns:
`Dict[str, int]`: The vocabulary.
"""
raise NotImplementedError()
def apply_chat_template(
self,
conversation: Union[List[Dict[str, str]], List[List[Dict[str, str]]], "Conversation"],
chat_template: Optional[str] = None,
add_generation_prompt: bool = False,
tokenize: bool = True,
padding: bool = False,
truncation: bool = False,
max_length: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_dict: bool = False,
tokenizer_kwargs: Optional[Dict[str, Any]] = None,
**kwargs,
) -> Union[str, List[int], List[str], List[List[int]], BatchEncoding]:
"""
Converts a list of dictionaries with `"role"` and `"content"` keys to a list of token
ids. This method is intended for use with chat models, and will read the tokenizer's chat_template attribute to
determine the format and control tokens to use when converting. When chat_template is None, it will fall back
to the default_chat_template specified at the class level.
Args:
conversation (Union[List[Dict[str, str]], List[List[Dict[str, str]]], "Conversation"]): A list of dicts
with "role" and "content" keys, representing the chat history so far.
chat_template (str, *optional*): A Jinja template to use for this conversion. If
this is not passed, the model's default chat template will be used instead.
add_generation_prompt (bool, *optional*): Whether to end the prompt with the token(s) that indicate
the start of an assistant message. This is useful when you want to generate a response from the model.
Note that this argument will be passed to the chat template, and so it must be supported in the
template for this argument to have any effect.
tokenize (`bool`, defaults to `True`):
Whether to tokenize the output. If `False`, the output will be a string.
padding (`bool`, defaults to `False`):
Whether to pad sequences to the maximum length. Has no effect if tokenize is `False`.
truncation (`bool`, defaults to `False`):
Whether to truncate sequences at the maximum length. Has no effect if tokenize is `False`.
max_length (`int`, *optional*):
Maximum length (in tokens) to use for padding or truncation. Has no effect if tokenize is `False`. If
not specified, the tokenizer's `max_length` attribute will be used as a default.
return_tensors (`str` or [`~utils.TensorType`], *optional*):
If set, will return tensors of a particular framework. Has no effect if tokenize is `False`. Acceptable
values are:
- `'tf'`: Return TensorFlow `tf.Tensor` objects.
- `'pt'`: Return PyTorch `torch.Tensor` objects.
- `'np'`: Return NumPy `np.ndarray` objects.
- `'jax'`: Return JAX `jnp.ndarray` objects.
return_dict (`bool`, defaults to `False`):
Whether to return a dictionary with named outputs. Has no effect if tokenize is `False`.
tokenizer_kwargs (`Dict[str: Any]`, *optional*): Additional kwargs to pass to the tokenizer.
**kwargs: Additional kwargs to pass to the template renderer. Will be accessible by the chat template.
Returns:
`Union[List[int], Dict]`: A list of token ids representing the tokenized chat so far, including control tokens. This
output is ready to pass to the model, either directly or via methods like `generate()`. If `return_dict` is
set, will return a dict of tokenizer outputs instead.
"""
if return_dict and not tokenize:
raise ValueError(
"`return_dict=True` is incompatible with `tokenize=False`, because there is no dict "
"of tokenizer outputs to return."
)
if tokenizer_kwargs is None:
tokenizer_kwargs = {}
using_default_template = False
# First, handle the cases when the model has a dict of multiple templates
if isinstance(self.chat_template, dict) or (
self.chat_template is None and isinstance(self.default_chat_template, dict)
):
if self.chat_template is not None:
template_dict = self.chat_template
using_default_dict = False
else:
template_dict = self.default_chat_template
using_default_dict = True
if chat_template is not None and chat_template in template_dict:
# The user can pass the name of a template to the chat template argument instead of an entire template
chat_template = template_dict[chat_template]
if using_default_dict:
using_default_template = True
elif chat_template is None and "default" in template_dict:
chat_template = template_dict["default"]
if using_default_dict:
using_default_template = True
elif chat_template is None:
raise ValueError(
"This model has multiple chat templates with no default specified! Please either pass a chat "
"template or the name of the template you wish to use to the `chat_template` argument. Available "
f"template names are {sorted(template_dict.keys())}."
)
elif chat_template is None:
# These are the cases when the model has a single template
# priority: `chat_template` argument > `tokenizer.chat_template` > `tokenizer.default_chat_template
if self.chat_template is not None:
chat_template = self.chat_template
else:
chat_template = self.default_chat_template
using_default_template = True
if using_default_template:
logger.warning_once(
"No chat template is set for this tokenizer, falling back to a default class-level template. This is "
"very error-prone, because models are often trained with templates different from the class default! "
"Default chat templates are a legacy feature and will be removed in Transformers v4.43, at which "
"point any code depending on them will stop working. We recommend setting a valid chat template before "
"then to ensure that this model continues working without issues."
)
# Compilation function uses a cache to avoid recompiling the same template
compiled_template = self._compile_jinja_template(chat_template)
if isinstance(conversation, (list, tuple)) and (
isinstance(conversation[0], (list, tuple)) or hasattr(conversation[0], "messages")
):
conversations = conversation
is_batched = True
else:
conversations = [conversation]
is_batched = False
rendered = []
template_kwargs = {**self.special_tokens_map, **kwargs} # kwargs overwrite special tokens if both are present
for chat in conversations:
if hasattr(chat, "messages"):
# Indicates it's a Conversation object
chat = chat.messages
rendered_chat = compiled_template.render(
messages=chat, add_generation_prompt=add_generation_prompt, **template_kwargs
)
rendered.append(rendered_chat)
if not is_batched:
rendered = rendered[0]
if tokenize:
out = self(
rendered,
padding=padding,
truncation=truncation,
max_length=max_length,
add_special_tokens=False,
return_tensors=return_tensors,
**tokenizer_kwargs,
)
if return_dict:
return out
else:
return out["input_ids"]
else:
return rendered
@lru_cache
def _compile_jinja_template(self, chat_template):
try:
import jinja2
from jinja2.exceptions import TemplateError
from jinja2.sandbox import ImmutableSandboxedEnvironment
except ImportError:
raise ImportError("apply_chat_template requires jinja2 to be installed.")
if version.parse(jinja2.__version__) < version.parse("3.0.0"):
raise ImportError(
"apply_chat_template requires jinja2>=3.0.0 to be installed. Your version is " f"{jinja2.__version__}."
)
def raise_exception(message):
raise TemplateError(message)
jinja_env = ImmutableSandboxedEnvironment(trim_blocks=True, lstrip_blocks=True)
jinja_env.globals["raise_exception"] = raise_exception
return jinja_env.from_string(chat_template)
@property
def default_chat_template(self):
"""
This template formats inputs in the standard ChatML format. See
https://github.com/openai/openai-python/blob/main/chatml.md
"""
return (
"{% for message in messages %}"
"{{'<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>' + '\n'}}"
"{% endfor %}"
"{% if add_generation_prompt %}"
"{{ '<|im_start|>assistant\n' }}"
"{% endif %}"
)
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
*init_inputs,
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
trust_remote_code=False,
**kwargs,
):
r"""
Instantiate a [`~tokenization_utils_base.PreTrainedTokenizerBase`] (or a derived class) from a predefined
tokenizer.
Args:
pretrained_model_name_or_path (`str` or `os.PathLike`):
Can be either:
- A string, the *model id* of a predefined tokenizer hosted inside a model repo on huggingface.co.
- A path to a *directory* containing vocabulary files required by the tokenizer, for instance saved
using the [`~tokenization_utils_base.PreTrainedTokenizerBase.save_pretrained`] method, e.g.,
`./my_model_directory/`.
- (**Deprecated**, not applicable to all derived classes) A path or url to a single saved vocabulary
file (if and only if the tokenizer only requires a single vocabulary file like Bert or XLNet), e.g.,
`./my_model_directory/vocab.txt`.
cache_dir (`str` or `os.PathLike`, *optional*):
Path to a directory in which a downloaded predefined tokenizer vocabulary files should be cached if the
standard cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force the (re-)download the vocabulary files and override the cached versions if they
exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received files. Attempt to resume the download if such a file
exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request.
token (`str` or *bool*, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated
when running `huggingface-cli login` (stored in `~/.huggingface`).
local_files_only (`bool`, *optional*, defaults to `False`):
Whether or not to only rely on local files and not to attempt to download any files.
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
subfolder (`str`, *optional*):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co (e.g. for
facebook/rag-token-base), specify it here.
inputs (additional positional arguments, *optional*):
Will be passed along to the Tokenizer `__init__` method.
trust_remote_code (`bool`, *optional*, defaults to `False`):
Whether or not to allow for custom models defined on the Hub in their own modeling files. This option
should only be set to `True` for repositories you trust and in which you have read the code, as it will
execute code present on the Hub on your local machine.
kwargs (additional keyword arguments, *optional*):
Will be passed to the Tokenizer `__init__` method. Can be used to set special tokens like `bos_token`,
`eos_token`, `unk_token`, `sep_token`, `pad_token`, `cls_token`, `mask_token`,
`additional_special_tokens`. See parameters in the `__init__` for more details.
<Tip>
Passing `token=True` is required when you want to use a private model.
</Tip>
Examples:
```python
# We can't instantiate directly the base class *PreTrainedTokenizerBase* so let's show our examples on a derived class: BertTokenizer
# Download vocabulary from huggingface.co and cache.
tokenizer = BertTokenizer.from_pretrained("google-bert/bert-base-uncased")
# Download vocabulary from huggingface.co (user-uploaded) and cache.
tokenizer = BertTokenizer.from_pretrained("dbmdz/bert-base-german-cased")
# If vocabulary files are in a directory (e.g. tokenizer was saved using *save_pretrained('./test/saved_model/')*)
tokenizer = BertTokenizer.from_pretrained("./test/saved_model/")
# If the tokenizer uses a single vocabulary file, you can point directly to this file
tokenizer = BertTokenizer.from_pretrained("./test/saved_model/my_vocab.txt")
# You can link tokens to special vocabulary when instantiating
tokenizer = BertTokenizer.from_pretrained("google-bert/bert-base-uncased", unk_token="<unk>")
# You should be sure '<unk>' is in the vocabulary when doing that.
# Otherwise use tokenizer.add_special_tokens({'unk_token': '<unk>'}) instead)
assert tokenizer.unk_token == "<unk>"
```"""
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
use_auth_token = kwargs.pop("use_auth_token", None)
subfolder = kwargs.pop("subfolder", None)
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
commit_hash = kwargs.pop("_commit_hash", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
user_agent = {"file_type": "tokenizer", "from_auto_class": from_auto_class, "is_fast": "Fast" in cls.__name__}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
vocab_files = {}
init_configuration = {}
is_local = os.path.isdir(pretrained_model_name_or_path)
single_file_id = None
if os.path.isfile(pretrained_model_name_or_path) or is_remote_url(pretrained_model_name_or_path):
if len(cls.vocab_files_names) > 1:
raise ValueError(
f"Calling {cls.__name__}.from_pretrained() with the path to a single file or url is not "
"supported for this tokenizer. Use a model identifier or the path to a directory instead."
)
warnings.warn(
f"Calling {cls.__name__}.from_pretrained() with the path to a single file or url is deprecated and "
"won't be possible anymore in v5. Use a model identifier or the path to a directory instead.",
FutureWarning,
)
file_id = list(cls.vocab_files_names.keys())[0]
vocab_files[file_id] = pretrained_model_name_or_path
single_file_id = file_id
else:
# At this point pretrained_model_name_or_path is either a directory or a model identifier name
additional_files_names = {
"added_tokens_file": ADDED_TOKENS_FILE, # kept only for legacy
"special_tokens_map_file": SPECIAL_TOKENS_MAP_FILE, # kept only for legacy
"tokenizer_config_file": TOKENIZER_CONFIG_FILE,
# tokenizer_file used to initialize a slow from a fast. Properly copy the `addedTokens` instead of adding in random orders
"tokenizer_file": FULL_TOKENIZER_FILE,
}
vocab_files = {**cls.vocab_files_names, **additional_files_names}
if "tokenizer_file" in vocab_files:
# Try to get the tokenizer config to see if there are versioned tokenizer files.
fast_tokenizer_file = FULL_TOKENIZER_FILE
resolved_config_file = cached_file(
pretrained_model_name_or_path,
TOKENIZER_CONFIG_FILE,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
token=token,
revision=revision,
local_files_only=local_files_only,
subfolder=subfolder,
user_agent=user_agent,
_raise_exceptions_for_gated_repo=False,
_raise_exceptions_for_missing_entries=False,
_raise_exceptions_for_connection_errors=False,
_commit_hash=commit_hash,
)
commit_hash = extract_commit_hash(resolved_config_file, commit_hash)
if resolved_config_file is not None:
with open(resolved_config_file, encoding="utf-8") as reader:
tokenizer_config = json.load(reader)
if "fast_tokenizer_files" in tokenizer_config:
fast_tokenizer_file = get_fast_tokenizer_file(tokenizer_config["fast_tokenizer_files"])
vocab_files["tokenizer_file"] = fast_tokenizer_file
# Get files from url, cache, or disk depending on the case
resolved_vocab_files = {}
unresolved_files = []
for file_id, file_path in vocab_files.items():
if file_path is None:
resolved_vocab_files[file_id] = None
elif single_file_id == file_id:
if os.path.isfile(file_path):
resolved_vocab_files[file_id] = file_path
elif is_remote_url(file_path):
resolved_vocab_files[file_id] = download_url(file_path, proxies=proxies)
else:
resolved_vocab_files[file_id] = cached_file(
pretrained_model_name_or_path,
file_path,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
_raise_exceptions_for_gated_repo=False,
_raise_exceptions_for_missing_entries=False,
_raise_exceptions_for_connection_errors=False,
_commit_hash=commit_hash,
)
commit_hash = extract_commit_hash(resolved_vocab_files[file_id], commit_hash)
if len(unresolved_files) > 0:
logger.info(
f"Can't load following files from cache: {unresolved_files} and cannot check if these "
"files are necessary for the tokenizer to operate."
)
if all(full_file_name is None for full_file_name in resolved_vocab_files.values()):
raise EnvironmentError(
f"Can't load tokenizer for '{pretrained_model_name_or_path}'. If you were trying to load it from "
"'https://huggingface.co/models', make sure you don't have a local directory with the same name. "
f"Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a directory "
f"containing all relevant files for a {cls.__name__} tokenizer."
)
for file_id, file_path in vocab_files.items():
if file_id not in resolved_vocab_files:
continue
if is_local:
logger.info(f"loading file {file_path}")
else:
logger.info(f"loading file {file_path} from cache at {resolved_vocab_files[file_id]}")
return cls._from_pretrained(
resolved_vocab_files,
pretrained_model_name_or_path,
init_configuration,
*init_inputs,
token=token,
cache_dir=cache_dir,
local_files_only=local_files_only,
_commit_hash=commit_hash,
_is_local=is_local,
trust_remote_code=trust_remote_code,
**kwargs,
)
@classmethod
def _from_pretrained(
cls,
resolved_vocab_files,
pretrained_model_name_or_path,
init_configuration,
*init_inputs,
token=None,
cache_dir=None,
local_files_only=False,
_commit_hash=None,
_is_local=False,
trust_remote_code=False,
**kwargs,
):
# We instantiate fast tokenizers based on a slow tokenizer if we don't have access to the tokenizer.json
# file or if `from_slow` is set to True.
from_slow = kwargs.get("from_slow", False)
has_tokenizer_file = resolved_vocab_files.get("tokenizer_file", None) is not None
if (from_slow or not has_tokenizer_file) and cls.slow_tokenizer_class is not None:
slow_tokenizer = (cls.slow_tokenizer_class)._from_pretrained(
copy.deepcopy(resolved_vocab_files),
pretrained_model_name_or_path,
copy.deepcopy(init_configuration),
*init_inputs,
token=token,
cache_dir=cache_dir,
local_files_only=local_files_only,
_commit_hash=_commit_hash,
**(copy.deepcopy(kwargs)),
)
else:
slow_tokenizer = None
# Prepare tokenizer initialization kwargs
# Did we saved some inputs and kwargs to reload ?
tokenizer_config_file = resolved_vocab_files.pop("tokenizer_config_file", None)
if tokenizer_config_file is not None:
with open(tokenizer_config_file, encoding="utf-8") as tokenizer_config_handle:
init_kwargs = json.load(tokenizer_config_handle)
# First attempt. We get tokenizer_class from tokenizer_config to check mismatch between tokenizers.
config_tokenizer_class = init_kwargs.get("tokenizer_class")
init_kwargs.pop("tokenizer_class", None)
if not has_tokenizer_file:
init_kwargs.pop("tokenizer_file", None)
saved_init_inputs = init_kwargs.pop("init_inputs", ())
if not init_inputs:
init_inputs = saved_init_inputs
else:
config_tokenizer_class = None
init_kwargs = init_configuration
if "auto_map" in init_kwargs and not _is_local:
# For backward compatibility with odl format.
if isinstance(init_kwargs["auto_map"], (tuple, list)):
init_kwargs["auto_map"] = {"AutoTokenizer": init_kwargs["auto_map"]}
init_kwargs["auto_map"] = add_model_info_to_auto_map(
init_kwargs["auto_map"], pretrained_model_name_or_path
)
if config_tokenizer_class is None:
# Matt: This entire block is only used to decide if the tokenizer class matches the class in the repo.
# If not, it raises a warning, but otherwise continues. Since we mostly load tokenizers with
# AutoTokenizer these days, it seems like a lot of work (and a source of bugs) for little gain.
# Maybe we can just remove this entirely?
from .models.auto.configuration_auto import AutoConfig # tests_ignore
# Second attempt. If we have not yet found tokenizer_class, let's try to use the config.
try:
config = AutoConfig.from_pretrained(
pretrained_model_name_or_path,
token=token,
cache_dir=cache_dir,
local_files_only=local_files_only,
trust_remote_code=trust_remote_code,
_commit_hash=_commit_hash,
)
config_tokenizer_class = config.tokenizer_class
except (OSError, ValueError, KeyError):
# skip if an error occurred.
config = None
if config_tokenizer_class is None:
# Third attempt. If we have not yet found the original type of the tokenizer,
# we are loading we see if we can infer it from the type of the configuration file
from .models.auto.tokenization_auto import TOKENIZER_MAPPING_NAMES # tests_ignore
if hasattr(config, "model_type"):
model_type = config.model_type
else:
# Fallback: use pattern matching on the string.
model_type = None
for pattern in TOKENIZER_MAPPING_NAMES.keys():
if pattern in str(pretrained_model_name_or_path):
model_type = pattern
break
if model_type is not None:
config_tokenizer_class, config_tokenizer_class_fast = TOKENIZER_MAPPING_NAMES.get(
model_type, (None, None)
)
if config_tokenizer_class is None:
config_tokenizer_class = config_tokenizer_class_fast
if config_tokenizer_class is not None:
if cls.__name__.replace("Fast", "") != config_tokenizer_class.replace("Fast", ""):
logger.warning(
"The tokenizer class you load from this checkpoint is not the same type as the class this"
" function is called from. It may result in unexpected tokenization. \nThe tokenizer class you"
f" load from this checkpoint is '{config_tokenizer_class}'. \nThe class this function is called"
f" from is '{cls.__name__}'."
)
# Update with newly provided kwargs
init_kwargs.update(kwargs)
# Merge resolved_vocab_files arguments in init_kwargs.
added_tokens_file = resolved_vocab_files.pop("added_tokens_file", None)
special_tokens_map_file = resolved_vocab_files.pop("special_tokens_map_file", None)
for args_name, file_path in resolved_vocab_files.items():
if args_name not in init_kwargs:
init_kwargs[args_name] = file_path
tokenizer_file = resolved_vocab_files.pop("tokenizer_file", None)
if slow_tokenizer is not None:
init_kwargs["__slow_tokenizer"] = slow_tokenizer
init_kwargs["name_or_path"] = pretrained_model_name_or_path
#### Handle tokenizer serialization of added and special tokens
added_tokens_decoder: Dict[int, AddedToken] = {}
added_tokens_map: Dict[str, AddedToken] = {}
# if we have info on the slow added tokens
if "added_tokens_decoder" in init_kwargs:
for idx, token in init_kwargs["added_tokens_decoder"].items():
if isinstance(token, dict):
token = AddedToken(**token)
if isinstance(token, AddedToken):
added_tokens_decoder[int(idx)] = token
added_tokens_map[str(token)] = token
else:
raise ValueError(
f"Found a {token.__class__} in the saved `added_tokens_decoder`, should be a dictionary or an AddedToken instance"
)
else:
# begin legacy: read the added_tokens_file and update kwargs with special_tokens_map if modified
if special_tokens_map_file is not None:
with open(special_tokens_map_file, encoding="utf-8") as special_tokens_map_handle:
special_tokens_map = json.load(special_tokens_map_handle)
for key, value in special_tokens_map.items():
if key in kwargs and kwargs[key]:
# This value has already been redefined by the kwargs
# We keep this new value and ignore the one stored in the special_tokens_map_file
continue
if isinstance(value, dict):
value = AddedToken(**value, special=True)
elif key == "additional_special_tokens" and isinstance(value, list):
additional_special_tokens = init_kwargs.pop("additional_special_tokens", []) or []
for token in value:
token = AddedToken(**token, special=True) if isinstance(token, dict) else token
if token not in additional_special_tokens:
additional_special_tokens.append(token)
value = additional_special_tokens
init_kwargs[key] = value
# slow -> slow|fast, legacy: convert the `"added_tokens.json"` file to `added_tokens_decoder`.
# this is for legacy purpose. We don't add the tokens after init for efficiency.
if added_tokens_file is not None:
special_tokens = []
for key in cls.SPECIAL_TOKENS_ATTRIBUTES & init_kwargs.keys():
if init_kwargs[key] is not None:
if key == "additional_special_tokens":
special_tokens += [str(token) for token in init_kwargs[key]]
else:
special_tokens.append(str(init_kwargs[key]))
with open(added_tokens_file, encoding="utf-8") as added_tokens_handle:
added_tok_encoder = json.load(added_tokens_handle)
for str_token, index in added_tok_encoder.items():
# if index not in added_tokens_decoder and str_token not in added_tokens_map:
special = str_token in special_tokens
added_tokens_decoder[index] = AddedToken(
str_token, rstrip=False, lstrip=False, normalized=not special, special=special
)
added_tokens_map[str(token)] = added_tokens_decoder[index]
# allows converting a fast -> slow: add the `tokenizer.json`'s `"added_tokens"` to the slow tokenizer
# if `tokenizer_config.json` is `None`
if tokenizer_file is not None:
# This is for slow so can be done before
with open(tokenizer_file, encoding="utf-8") as tokenizer_file_handle:
tokenizer_file_handle = json.load(tokenizer_file_handle)
added_tokens = tokenizer_file_handle.pop("added_tokens")
for serialized_tokens in added_tokens:
idx = serialized_tokens.pop("id")
added_tokens_decoder[idx] = AddedToken(**serialized_tokens)
added_tokens_map[str(added_tokens_decoder[idx])] = added_tokens_decoder[idx]
# end legacy
# Passing AddedTokens and not strings to the class to prevent it from casting the string to a different AddedToken
# convert {'__type': 'AddedToken', 'content': '<ent>', 'lstrip': False, 'normalized': True, ...} to AddedTokens
init_kwargs["added_tokens_decoder"] = added_tokens_decoder
init_kwargs = cls.convert_added_tokens(init_kwargs, save=False)
for key in cls.SPECIAL_TOKENS_ATTRIBUTES & init_kwargs.keys():
if added_tokens_map != {} and init_kwargs[key] is not None:
if key != "additional_special_tokens":
init_kwargs[key] = added_tokens_map.get(str(init_kwargs[key]), init_kwargs[key])
# Instantiate the tokenizer.
try:
tokenizer = cls(*init_inputs, **init_kwargs)
except OSError:
raise OSError(
"Unable to load vocabulary from file. "
"Please check that the provided vocabulary is accessible and not corrupted."
)
if added_tokens_decoder != {} and max(list(added_tokens_decoder.keys())[-1], 0) > tokenizer.vocab_size:
logger.warning_advice(
"Special tokens have been added in the vocabulary, make sure the associated word embeddings are"
" fine-tuned or trained."
)
return tokenizer
@staticmethod
def _eventually_correct_t5_max_length(pretrained_model_name_or_path, max_model_length, init_max_model_length):
# This method should be deleted in Transformers v5
# Its only purpose is to potentially throw a warning
# that incorrectly defined max lengths of T5's tokenizer are used
# which we will correct in Transformers v5.
return max_model_length
@classmethod
def convert_added_tokens(cls, obj: Union[AddedToken, Any], save=False, add_type_field=True):
if isinstance(obj, dict) and "__type" in obj and obj["__type"] == "AddedToken":
obj.pop("__type")
return AddedToken(**obj)
if isinstance(obj, AddedToken) and save:
obj = obj.__getstate__()
if add_type_field:
obj["__type"] = "AddedToken"
else:
# Don't save "special" for previous tokenizers
obj.pop("special")
return obj
elif isinstance(obj, (list, tuple)):
return [cls.convert_added_tokens(o, save=save, add_type_field=add_type_field) for o in obj]
elif isinstance(obj, dict):
return {k: cls.convert_added_tokens(v, save=save, add_type_field=add_type_field) for k, v in obj.items()}
return obj
def save_pretrained(
self,
save_directory: Union[str, os.PathLike],
legacy_format: Optional[bool] = None,
filename_prefix: Optional[str] = None,
push_to_hub: bool = False,
**kwargs,
) -> Tuple[str]:
"""
Save the full tokenizer state.
This method make sure the full tokenizer can then be re-loaded using the
[`~tokenization_utils_base.PreTrainedTokenizer.from_pretrained`] class method..
Warning,None This won't save modifications you may have applied to the tokenizer after the instantiation (for
instance, modifying `tokenizer.do_lower_case` after creation).
Args:
save_directory (`str` or `os.PathLike`): The path to a directory where the tokenizer will be saved.
legacy_format (`bool`, *optional*):
Only applicable for a fast tokenizer. If unset (default), will save the tokenizer in the unified JSON
format as well as in legacy format if it exists, i.e. with tokenizer specific vocabulary and a separate
added_tokens files.
If `False`, will only save the tokenizer in the unified JSON format. This format is incompatible with
"slow" tokenizers (not powered by the *tokenizers* library), so the tokenizer will not be able to be
loaded in the corresponding "slow" tokenizer.
If `True`, will save the tokenizer in legacy format. If the "slow" tokenizer doesn't exits, a value
error is raised.
filename_prefix (`str`, *optional*):
A prefix to add to the names of the files saved by the tokenizer.
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
Returns:
A tuple of `str`: The files saved.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if kwargs.get("token", None) is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
kwargs["token"] = use_auth_token
if os.path.isfile(save_directory):
logger.error(f"Provided path ({save_directory}) should be a directory, not a file")
return
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
special_tokens_map_file = os.path.join(
save_directory, (filename_prefix + "-" if filename_prefix else "") + SPECIAL_TOKENS_MAP_FILE
)
tokenizer_config_file = os.path.join(
save_directory, (filename_prefix + "-" if filename_prefix else "") + TOKENIZER_CONFIG_FILE
)
tokenizer_config = copy.deepcopy(self.init_kwargs)
# Let's save the init kwargs
target_keys = set(self.init_kwargs.keys())
# Let's save the special tokens map (only the strings)
target_keys.update(["model_max_length", "clean_up_tokenization_spaces"])
for k in target_keys:
if hasattr(self, k):
tokenizer_config[k] = getattr(self, k)
# Let's make sure we properly save the special tokens.
tokenizer_config.update(self.special_tokens_map)
if self.chat_template is not None:
if isinstance(self.chat_template, dict):
# Chat template dicts are saved to the config as lists of dicts with fixed key names.
# They will be reconstructed as a single dict during loading.
tokenizer_config["chat_template"] = [{"name": k, "template": v} for k, v in self.chat_template.items()]
else:
tokenizer_config["chat_template"] = self.chat_template
if len(self.init_inputs) > 0:
tokenizer_config["init_inputs"] = copy.deepcopy(self.init_inputs)
for file_id in self.vocab_files_names.keys():
tokenizer_config.pop(file_id, None)
# no typefields, this way old fast and slow can load it
tokenizer_config = self.convert_added_tokens(tokenizer_config, add_type_field=True, save=True)
# Process added tokens seperatly: allows previous versions to ignore it!
added_tokens = {}
for key, value in self.added_tokens_decoder.items():
added_tokens[key] = value.__getstate__()
tokenizer_config["added_tokens_decoder"] = added_tokens
# Add tokenizer class to the tokenizer config to be able to reload it with from_pretrained
tokenizer_class = self.__class__.__name__
# Remove the Fast at the end unless we have a special `PreTrainedTokenizerFast`
if tokenizer_class.endswith("Fast") and tokenizer_class != "PreTrainedTokenizerFast":
tokenizer_class = tokenizer_class[:-4]
tokenizer_config["tokenizer_class"] = tokenizer_class
if getattr(self, "_auto_map", None) is not None:
tokenizer_config["auto_map"] = self._auto_map
if getattr(self, "_processor_class", None) is not None:
tokenizer_config["processor_class"] = self._processor_class
# If we have a custom model, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=tokenizer_config)
# remove private information
if "name_or_path" in tokenizer_config:
tokenizer_config.pop("name_or_path")
tokenizer_config.pop("special_tokens_map_file", None)
tokenizer_config.pop("tokenizer_file", None)
with open(tokenizer_config_file, "w", encoding="utf-8") as f:
out_str = json.dumps(tokenizer_config, indent=2, sort_keys=True, ensure_ascii=False) + "\n"
f.write(out_str)
logger.info(f"tokenizer config file saved in {tokenizer_config_file}")
# Sanitize AddedTokens in special_tokens_map
# kept for forward compatibility, will be removed in transoformers 5. Typefields are not saved for FC, special should not be save either
write_dict = self.convert_added_tokens(self.special_tokens_map_extended, save=True, add_type_field=False)
with open(special_tokens_map_file, "w", encoding="utf-8") as f:
out_str = json.dumps(write_dict, indent=2, sort_keys=True, ensure_ascii=False) + "\n"
f.write(out_str)
logger.info(f"Special tokens file saved in {special_tokens_map_file}")
file_names = (tokenizer_config_file, special_tokens_map_file)
save_files = self._save_pretrained(
save_directory=save_directory,
file_names=file_names,
legacy_format=legacy_format,
filename_prefix=filename_prefix,
)
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=kwargs.get("token"),
)
return save_files
def _save_pretrained(
self,
save_directory: Union[str, os.PathLike],
file_names: Tuple[str],
legacy_format: Optional[bool] = None,
filename_prefix: Optional[str] = None,
) -> Tuple[str]:
"""
Save a tokenizer using the slow-tokenizer/legacy format: vocabulary + added tokens.
Fast tokenizers can also be saved in a unique JSON file containing {config + vocab + added-tokens} using the
specific [`~tokenization_utils_fast.PreTrainedTokenizerFast._save_pretrained`]
"""
if legacy_format is False:
raise ValueError(
"Only fast tokenizers (instances of PreTrainedTokenizerFast) can be saved in non legacy format."
)
save_directory = str(save_directory)
added_tokens_file = os.path.join(
save_directory, (filename_prefix + "-" if filename_prefix else "") + ADDED_TOKENS_FILE
)
# the new get_added_vocab() also returns special tokens and tokens that have an index < vocab_size
added_vocab = {tok: index for tok, index in self.added_tokens_encoder.items() if index >= self.vocab_size}
if added_vocab:
with open(added_tokens_file, "w", encoding="utf-8") as f:
out_str = json.dumps(added_vocab, indent=2, sort_keys=True, ensure_ascii=False) + "\n"
f.write(out_str)
logger.info(f"added tokens file saved in {added_tokens_file}")
vocab_files = self.save_vocabulary(save_directory, filename_prefix=filename_prefix)
return file_names + vocab_files + (added_tokens_file,)
def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
"""
Save only the vocabulary of the tokenizer (vocabulary + added tokens).
This method won't save the configuration and special token mappings of the tokenizer. Use
[`~PreTrainedTokenizerFast._save_pretrained`] to save the whole state of the tokenizer.
Args:
save_directory (`str`):
The directory in which to save the vocabulary.
filename_prefix (`str`, *optional*):
An optional prefix to add to the named of the saved files.
Returns:
`Tuple(str)`: Paths to the files saved.
"""
raise NotImplementedError
def tokenize(self, text: str, pair: Optional[str] = None, add_special_tokens: bool = False, **kwargs) -> List[str]:
"""
Converts a string into a sequence of tokens, replacing unknown tokens with the `unk_token`.
Args:
text (`str`):
The sequence to be encoded.
pair (`str`, *optional*):
A second sequence to be encoded with the first.
add_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to add the special tokens associated with the corresponding model.
kwargs (additional keyword arguments, *optional*):
Will be passed to the underlying model specific encode method. See details in
[`~PreTrainedTokenizerBase.__call__`]
Returns:
`List[str]`: The list of tokens.
"""
raise NotImplementedError
@add_end_docstrings(
ENCODE_KWARGS_DOCSTRING,
"""
**kwargs: Passed along to the `.tokenize()` method.
""",
"""
Returns:
`List[int]`, `torch.Tensor`, `tf.Tensor` or `np.ndarray`: The tokenized ids of the text.
""",
)
def encode(
self,
text: Union[TextInput, PreTokenizedInput, EncodedInput],
text_pair: Optional[Union[TextInput, PreTokenizedInput, EncodedInput]] = None,
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
return_tensors: Optional[Union[str, TensorType]] = None,
**kwargs,
) -> List[int]:
"""
Converts a string to a sequence of ids (integer), using the tokenizer and vocabulary.
Same as doing `self.convert_tokens_to_ids(self.tokenize(text))`.
Args:
text (`str`, `List[str]` or `List[int]`):
The first sequence to be encoded. This can be a string, a list of strings (tokenized string using the
`tokenize` method) or a list of integers (tokenized string ids using the `convert_tokens_to_ids`
method).
text_pair (`str`, `List[str]` or `List[int]`, *optional*):
Optional second sequence to be encoded. This can be a string, a list of strings (tokenized string using
the `tokenize` method) or a list of integers (tokenized string ids using the `convert_tokens_to_ids`
method).
"""
encoded_inputs = self.encode_plus(
text,
text_pair=text_pair,
add_special_tokens=add_special_tokens,
padding=padding,
truncation=truncation,
max_length=max_length,
stride=stride,
return_tensors=return_tensors,
**kwargs,
)
return encoded_inputs["input_ids"]
def num_special_tokens_to_add(self, pair: bool = False) -> int:
raise NotImplementedError
def _get_padding_truncation_strategies(
self, padding=False, truncation=None, max_length=None, pad_to_multiple_of=None, verbose=True, **kwargs
):
"""
Find the correct padding/truncation strategy with backward compatibility for old arguments (truncation_strategy
and pad_to_max_length) and behaviors.
"""
old_truncation_strategy = kwargs.pop("truncation_strategy", "do_not_truncate")
old_pad_to_max_length = kwargs.pop("pad_to_max_length", False)
# Backward compatibility for previous behavior, maybe we should deprecate it:
# If you only set max_length, it activates truncation for max_length
if max_length is not None and padding is False and truncation is None:
if verbose:
if not self.deprecation_warnings.get("Truncation-not-explicitly-activated", False):
logger.warning(
"Truncation was not explicitly activated but `max_length` is provided a specific value, please"
" use `truncation=True` to explicitly truncate examples to max length. Defaulting to"
" 'longest_first' truncation strategy. If you encode pairs of sequences (GLUE-style) with the"
" tokenizer you can select this strategy more precisely by providing a specific strategy to"
" `truncation`."
)
self.deprecation_warnings["Truncation-not-explicitly-activated"] = True
truncation = "longest_first"
# Get padding strategy
if padding is False and old_pad_to_max_length:
if verbose:
warnings.warn(
"The `pad_to_max_length` argument is deprecated and will be removed in a future version, "
"use `padding=True` or `padding='longest'` to pad to the longest sequence in the batch, or "
"use `padding='max_length'` to pad to a max length. In this case, you can give a specific "
"length with `max_length` (e.g. `max_length=45`) or leave max_length to None to pad to the "
"maximal input size of the model (e.g. 512 for Bert).",
FutureWarning,
)
if max_length is None:
padding_strategy = PaddingStrategy.LONGEST
else:
padding_strategy = PaddingStrategy.MAX_LENGTH
elif padding is not False:
if padding is True:
if verbose:
if max_length is not None and (
truncation is None or truncation is False or truncation == "do_not_truncate"
):
warnings.warn(
"`max_length` is ignored when `padding`=`True` and there is no truncation strategy. "
"To pad to max length, use `padding='max_length'`."
)
if old_pad_to_max_length is not False:
warnings.warn("Though `pad_to_max_length` = `True`, it is ignored because `padding`=`True`.")
padding_strategy = PaddingStrategy.LONGEST # Default to pad to the longest sequence in the batch
elif not isinstance(padding, PaddingStrategy):
padding_strategy = PaddingStrategy(padding)
elif isinstance(padding, PaddingStrategy):
padding_strategy = padding
else:
padding_strategy = PaddingStrategy.DO_NOT_PAD
# Get truncation strategy
if truncation is None and old_truncation_strategy != "do_not_truncate":
if verbose:
warnings.warn(
"The `truncation_strategy` argument is deprecated and will be removed in a future version, use"
" `truncation=True` to truncate examples to a max length. You can give a specific length with"
" `max_length` (e.g. `max_length=45`) or leave max_length to None to truncate to the maximal input"
" size of the model (e.g. 512 for Bert). If you have pairs of inputs, you can give a specific"
" truncation strategy selected among `truncation='only_first'` (will only truncate the first"
" sentence in the pairs) `truncation='only_second'` (will only truncate the second sentence in the"
" pairs) or `truncation='longest_first'` (will iteratively remove tokens from the longest sentence"
" in the pairs).",
FutureWarning,
)
truncation_strategy = TruncationStrategy(old_truncation_strategy)
elif truncation is not False and truncation is not None:
if truncation is True:
truncation_strategy = (
TruncationStrategy.LONGEST_FIRST
) # Default to truncate the longest sequences in pairs of inputs
elif not isinstance(truncation, TruncationStrategy):
truncation_strategy = TruncationStrategy(truncation)
elif isinstance(truncation, TruncationStrategy):
truncation_strategy = truncation
else:
truncation_strategy = TruncationStrategy.DO_NOT_TRUNCATE
# Set max length if needed
if max_length is None:
if padding_strategy == PaddingStrategy.MAX_LENGTH:
if self.model_max_length > LARGE_INTEGER:
if verbose:
if not self.deprecation_warnings.get("Asking-to-pad-to-max_length", False):
logger.warning(
"Asking to pad to max_length but no maximum length is provided and the model has no"
" predefined maximum length. Default to no padding."
)
self.deprecation_warnings["Asking-to-pad-to-max_length"] = True
padding_strategy = PaddingStrategy.DO_NOT_PAD
else:
max_length = self.model_max_length
if truncation_strategy != TruncationStrategy.DO_NOT_TRUNCATE:
if self.model_max_length > LARGE_INTEGER:
if verbose:
if not self.deprecation_warnings.get("Asking-to-truncate-to-max_length", False):
logger.warning(
"Asking to truncate to max_length but no maximum length is provided and the model has"
" no predefined maximum length. Default to no truncation."
)
self.deprecation_warnings["Asking-to-truncate-to-max_length"] = True
truncation_strategy = TruncationStrategy.DO_NOT_TRUNCATE
else:
max_length = self.model_max_length
# Test if we have a padding token
if padding_strategy != PaddingStrategy.DO_NOT_PAD and (self.pad_token is None or self.pad_token_id < 0):
raise ValueError(
"Asking to pad but the tokenizer does not have a padding token. "
"Please select a token to use as `pad_token` `(tokenizer.pad_token = tokenizer.eos_token e.g.)` "
"or add a new pad token via `tokenizer.add_special_tokens({'pad_token': '[PAD]'})`."
)
# Check that we will truncate to a multiple of pad_to_multiple_of if both are provided
if (
truncation_strategy != TruncationStrategy.DO_NOT_TRUNCATE
and padding_strategy != PaddingStrategy.DO_NOT_PAD
and pad_to_multiple_of is not None
and max_length is not None
and (max_length % pad_to_multiple_of != 0)
):
raise ValueError(
"Truncation and padding are both activated but "
f"truncation length ({max_length}) is not a multiple of pad_to_multiple_of ({pad_to_multiple_of})."
)
return padding_strategy, truncation_strategy, max_length, kwargs
@add_end_docstrings(ENCODE_KWARGS_DOCSTRING, ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
def __call__(
self,
text: Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]] = None,
text_pair: Optional[Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]]] = None,
text_target: Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]] = None,
text_pair_target: Optional[
Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]]
] = None,
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
"""
Main method to tokenize and prepare for the model one or several sequence(s) or one or several pair(s) of
sequences.
Args:
text (`str`, `List[str]`, `List[List[str]]`, *optional*):
The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings
(pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set
`is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
text_pair (`str`, `List[str]`, `List[List[str]]`, *optional*):
The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings
(pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set
`is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
text_target (`str`, `List[str]`, `List[List[str]]`, *optional*):
The sequence or batch of sequences to be encoded as target texts. Each sequence can be a string or a
list of strings (pretokenized string). If the sequences are provided as list of strings (pretokenized),
you must set `is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
text_pair_target (`str`, `List[str]`, `List[List[str]]`, *optional*):
The sequence or batch of sequences to be encoded as target texts. Each sequence can be a string or a
list of strings (pretokenized string). If the sequences are provided as list of strings (pretokenized),
you must set `is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
"""
# To avoid duplicating
all_kwargs = {
"add_special_tokens": add_special_tokens,
"padding": padding,
"truncation": truncation,
"max_length": max_length,
"stride": stride,
"is_split_into_words": is_split_into_words,
"pad_to_multiple_of": pad_to_multiple_of,
"return_tensors": return_tensors,
"return_token_type_ids": return_token_type_ids,
"return_attention_mask": return_attention_mask,
"return_overflowing_tokens": return_overflowing_tokens,
"return_special_tokens_mask": return_special_tokens_mask,
"return_offsets_mapping": return_offsets_mapping,
"return_length": return_length,
"verbose": verbose,
}
all_kwargs.update(kwargs)
if text is None and text_target is None:
raise ValueError("You need to specify either `text` or `text_target`.")
if text is not None:
# The context manager will send the inputs as normal texts and not text_target, but we shouldn't change the
# input mode in this case.
if not self._in_target_context_manager:
self._switch_to_input_mode()
encodings = self._call_one(text=text, text_pair=text_pair, **all_kwargs)
if text_target is not None:
self._switch_to_target_mode()
target_encodings = self._call_one(text=text_target, text_pair=text_pair_target, **all_kwargs)
# Leave back tokenizer in input mode
self._switch_to_input_mode()
if text_target is None:
return encodings
elif text is None:
return target_encodings
else:
encodings["labels"] = target_encodings["input_ids"]
return encodings
def _call_one(
self,
text: Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]],
text_pair: Optional[Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]]] = None,
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
# Input type checking for clearer error
def _is_valid_text_input(t):
if isinstance(t, str):
# Strings are fine
return True
elif isinstance(t, (list, tuple)):
# List are fine as long as they are...
if len(t) == 0:
# ... empty
return True
elif isinstance(t[0], str):
# ... list of strings
return True
elif isinstance(t[0], (list, tuple)):
# ... list with an empty list or with a list of strings
return len(t[0]) == 0 or isinstance(t[0][0], str)
else:
return False
else:
return False
if not _is_valid_text_input(text):
raise ValueError(
"text input must be of type `str` (single example), `List[str]` (batch or single pretokenized example) "
"or `List[List[str]]` (batch of pretokenized examples)."
)
if text_pair is not None and not _is_valid_text_input(text_pair):
raise ValueError(
"text input must be of type `str` (single example), `List[str]` (batch or single pretokenized example) "
"or `List[List[str]]` (batch of pretokenized examples)."
)
if is_split_into_words:
is_batched = isinstance(text, (list, tuple)) and text and isinstance(text[0], (list, tuple))
else:
is_batched = isinstance(text, (list, tuple))
if is_batched:
if isinstance(text_pair, str):
raise TypeError(
"when tokenizing batches of text, `text_pair` must be a list or tuple with the same length as"
" `text`."
)
if text_pair is not None and len(text) != len(text_pair):
raise ValueError(
f"batch length of `text`: {len(text)} does not match batch length of `text_pair`:"
f" {len(text_pair)}."
)
batch_text_or_text_pairs = list(zip(text, text_pair)) if text_pair is not None else text
return self.batch_encode_plus(
batch_text_or_text_pairs=batch_text_or_text_pairs,
add_special_tokens=add_special_tokens,
padding=padding,
truncation=truncation,
max_length=max_length,
stride=stride,
is_split_into_words=is_split_into_words,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
**kwargs,
)
else:
return self.encode_plus(
text=text,
text_pair=text_pair,
add_special_tokens=add_special_tokens,
padding=padding,
truncation=truncation,
max_length=max_length,
stride=stride,
is_split_into_words=is_split_into_words,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
**kwargs,
)
@add_end_docstrings(ENCODE_KWARGS_DOCSTRING, ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
def encode_plus(
self,
text: Union[TextInput, PreTokenizedInput, EncodedInput],
text_pair: Optional[Union[TextInput, PreTokenizedInput, EncodedInput]] = None,
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
"""
Tokenize and prepare for the model a sequence or a pair of sequences.
<Tip warning={true}>
This method is deprecated, `__call__` should be used instead.
</Tip>
Args:
text (`str`, `List[str]` or `List[int]` (the latter only for not-fast tokenizers)):
The first sequence to be encoded. This can be a string, a list of strings (tokenized string using the
`tokenize` method) or a list of integers (tokenized string ids using the `convert_tokens_to_ids`
method).
text_pair (`str`, `List[str]` or `List[int]`, *optional*):
Optional second sequence to be encoded. This can be a string, a list of strings (tokenized string using
the `tokenize` method) or a list of integers (tokenized string ids using the `convert_tokens_to_ids`
method).
"""
# Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
padding=padding,
truncation=truncation,
max_length=max_length,
pad_to_multiple_of=pad_to_multiple_of,
verbose=verbose,
**kwargs,
)
return self._encode_plus(
text=text,
text_pair=text_pair,
add_special_tokens=add_special_tokens,
padding_strategy=padding_strategy,
truncation_strategy=truncation_strategy,
max_length=max_length,
stride=stride,
is_split_into_words=is_split_into_words,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
**kwargs,
)
def _encode_plus(
self,
text: Union[TextInput, PreTokenizedInput, EncodedInput],
text_pair: Optional[Union[TextInput, PreTokenizedInput, EncodedInput]] = None,
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
raise NotImplementedError
@add_end_docstrings(ENCODE_KWARGS_DOCSTRING, ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
def batch_encode_plus(
self,
batch_text_or_text_pairs: Union[
List[TextInput],
List[TextInputPair],
List[PreTokenizedInput],
List[PreTokenizedInputPair],
List[EncodedInput],
List[EncodedInputPair],
],
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
"""
Tokenize and prepare for the model a list of sequences or a list of pairs of sequences.
<Tip warning={true}>
This method is deprecated, `__call__` should be used instead.
</Tip>
Args:
batch_text_or_text_pairs (`List[str]`, `List[Tuple[str, str]]`, `List[List[str]]`, `List[Tuple[List[str], List[str]]]`, and for not-fast tokenizers, also `List[List[int]]`, `List[Tuple[List[int], List[int]]]`):
Batch of sequences or pair of sequences to be encoded. This can be a list of
string/string-sequences/int-sequences or a list of pair of string/string-sequences/int-sequence (see
details in `encode_plus`).
"""
# Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
padding=padding,
truncation=truncation,
max_length=max_length,
pad_to_multiple_of=pad_to_multiple_of,
verbose=verbose,
**kwargs,
)
return self._batch_encode_plus(
batch_text_or_text_pairs=batch_text_or_text_pairs,
add_special_tokens=add_special_tokens,
padding_strategy=padding_strategy,
truncation_strategy=truncation_strategy,
max_length=max_length,
stride=stride,
is_split_into_words=is_split_into_words,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
**kwargs,
)
def _batch_encode_plus(
self,
batch_text_or_text_pairs: Union[
List[TextInput],
List[TextInputPair],
List[PreTokenizedInput],
List[PreTokenizedInputPair],
List[EncodedInput],
List[EncodedInputPair],
],
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
raise NotImplementedError
def pad(
self,
encoded_inputs: Union[
BatchEncoding,
List[BatchEncoding],
Dict[str, EncodedInput],
Dict[str, List[EncodedInput]],
List[Dict[str, EncodedInput]],
],
padding: Union[bool, str, PaddingStrategy] = True,
max_length: Optional[int] = None,
pad_to_multiple_of: Optional[int] = None,
return_attention_mask: Optional[bool] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
verbose: bool = True,
) -> BatchEncoding:
"""
Pad a single encoded input or a batch of encoded inputs up to predefined length or to the max sequence length
in the batch.
Padding side (left/right) padding token ids are defined at the tokenizer level (with `self.padding_side`,
`self.pad_token_id` and `self.pad_token_type_id`).
Please note that with a fast tokenizer, using the `__call__` method is faster than using a method to encode the
text followed by a call to the `pad` method to get a padded encoding.
<Tip>
If the `encoded_inputs` passed are dictionary of numpy arrays, PyTorch tensors or TensorFlow tensors, the
result will use the same type unless you provide a different tensor type with `return_tensors`. In the case of
PyTorch tensors, you will lose the specific device of your tensors however.
</Tip>
Args:
encoded_inputs ([`BatchEncoding`], list of [`BatchEncoding`], `Dict[str, List[int]]`, `Dict[str, List[List[int]]` or `List[Dict[str, List[int]]]`):
Tokenized inputs. Can represent one input ([`BatchEncoding`] or `Dict[str, List[int]]`) or a batch of
tokenized inputs (list of [`BatchEncoding`], *Dict[str, List[List[int]]]* or *List[Dict[str,
List[int]]]*) so you can use this method during preprocessing as well as in a PyTorch Dataloader
collate function.
Instead of `List[int]` you can have tensors (numpy arrays, PyTorch tensors or TensorFlow tensors), see
the note above for the return type.
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `True`):
Select a strategy to pad the returned sequences (according to the model's padding side and padding
index) among:
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
acceptable input length for the model if that argument is not provided.
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
lengths).
max_length (`int`, *optional*):
Maximum length of the returned list and optionally padding length (see above).
pad_to_multiple_of (`int`, *optional*):
If set will pad the sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
`>= 7.5` (Volta).
return_attention_mask (`bool`, *optional*):
Whether to return the attention mask. If left to the default, will return the attention mask according
to the specific tokenizer's default, defined by the `return_outputs` attribute.
[What are attention masks?](../glossary#attention-mask)
return_tensors (`str` or [`~utils.TensorType`], *optional*):
If set, will return tensors instead of list of python integers. Acceptable values are:
- `'tf'`: Return TensorFlow `tf.constant` objects.
- `'pt'`: Return PyTorch `torch.Tensor` objects.
- `'np'`: Return Numpy `np.ndarray` objects.
verbose (`bool`, *optional*, defaults to `True`):
Whether or not to print more information and warnings.
"""
if self.__class__.__name__.endswith("Fast"):
if not self.deprecation_warnings.get("Asking-to-pad-a-fast-tokenizer", False):
logger.warning_advice(
f"You're using a {self.__class__.__name__} tokenizer. Please note that with a fast tokenizer,"
" using the `__call__` method is faster than using a method to encode the text followed by a call"
" to the `pad` method to get a padded encoding."
)
self.deprecation_warnings["Asking-to-pad-a-fast-tokenizer"] = True
# If we have a list of dicts, let's convert it in a dict of lists
# We do this to allow using this method as a collate_fn function in PyTorch Dataloader
if isinstance(encoded_inputs, (list, tuple)) and isinstance(encoded_inputs[0], Mapping):
encoded_inputs = {key: [example[key] for example in encoded_inputs] for key in encoded_inputs[0].keys()}
# The model's main input name, usually `input_ids`, has be passed for padding
if self.model_input_names[0] not in encoded_inputs:
raise ValueError(
"You should supply an encoding or a list of encodings to this method "
f"that includes {self.model_input_names[0]}, but you provided {list(encoded_inputs.keys())}"
)
required_input = encoded_inputs[self.model_input_names[0]]
if required_input is None or (isinstance(required_input, Sized) and len(required_input) == 0):
if return_attention_mask:
encoded_inputs["attention_mask"] = []
return encoded_inputs
# If we have PyTorch/TF/NumPy tensors/arrays as inputs, we cast them as python objects
# and rebuild them afterwards if no return_tensors is specified
# Note that we lose the specific device the tensor may be on for PyTorch
first_element = required_input[0]
if isinstance(first_element, (list, tuple)):
# first_element might be an empty list/tuple in some edge cases so we grab the first non empty element.
for item in required_input:
if len(item) != 0:
first_element = item[0]
break
# At this state, if `first_element` is still a list/tuple, it's an empty one so there is nothing to do.
if not isinstance(first_element, (int, list, tuple)):
if is_tf_tensor(first_element):
return_tensors = "tf" if return_tensors is None else return_tensors
elif is_torch_tensor(first_element):
return_tensors = "pt" if return_tensors is None else return_tensors
elif isinstance(first_element, np.ndarray):
return_tensors = "np" if return_tensors is None else return_tensors
else:
raise ValueError(
f"type of {first_element} unknown: {type(first_element)}. "
"Should be one of a python, numpy, pytorch or tensorflow object."
)
for key, value in encoded_inputs.items():
encoded_inputs[key] = to_py_obj(value)
# Convert padding_strategy in PaddingStrategy
padding_strategy, _, max_length, _ = self._get_padding_truncation_strategies(
padding=padding, max_length=max_length, verbose=verbose
)
required_input = encoded_inputs[self.model_input_names[0]]
if required_input and not isinstance(required_input[0], (list, tuple)):
encoded_inputs = self._pad(
encoded_inputs,
max_length=max_length,
padding_strategy=padding_strategy,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
)
return BatchEncoding(encoded_inputs, tensor_type=return_tensors)
batch_size = len(required_input)
assert all(
len(v) == batch_size for v in encoded_inputs.values()
), "Some items in the output dictionary have a different batch size than others."
if padding_strategy == PaddingStrategy.LONGEST:
max_length = max(len(inputs) for inputs in required_input)
padding_strategy = PaddingStrategy.MAX_LENGTH
batch_outputs = {}
for i in range(batch_size):
inputs = {k: v[i] for k, v in encoded_inputs.items()}
outputs = self._pad(
inputs,
max_length=max_length,
padding_strategy=padding_strategy,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
)
for key, value in outputs.items():
if key not in batch_outputs:
batch_outputs[key] = []
batch_outputs[key].append(value)
return BatchEncoding(batch_outputs, tensor_type=return_tensors)
def create_token_type_ids_from_sequences(
self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
) -> List[int]:
"""
Create the token type IDs corresponding to the sequences passed. [What are token type
IDs?](../glossary#token-type-ids)
Should be overridden in a subclass if the model has a special way of building those.
Args:
token_ids_0 (`List[int]`): The first tokenized sequence.
token_ids_1 (`List[int]`, *optional*): The second tokenized sequence.
Returns:
`List[int]`: The token type ids.
"""
if token_ids_1 is None:
return len(token_ids_0) * [0]
return [0] * len(token_ids_0) + [1] * len(token_ids_1)
def build_inputs_with_special_tokens(
self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
) -> List[int]:
"""
Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
adding special tokens.
This implementation does not add special tokens and this method should be overridden in a subclass.
Args:
token_ids_0 (`List[int]`): The first tokenized sequence.
token_ids_1 (`List[int]`, *optional*): The second tokenized sequence.
Returns:
`List[int]`: The model input with special tokens.
"""
if token_ids_1 is None:
return token_ids_0
return token_ids_0 + token_ids_1
@add_end_docstrings(ENCODE_KWARGS_DOCSTRING, ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
def prepare_for_model(
self,
ids: List[int],
pair_ids: Optional[List[int]] = None,
add_special_tokens: bool = True,
padding: Union[bool, str, PaddingStrategy] = False,
truncation: Union[bool, str, TruncationStrategy] = None,
max_length: Optional[int] = None,
stride: int = 0,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
prepend_batch_axis: bool = False,
**kwargs,
) -> BatchEncoding:
"""
Prepares a sequence of input id, or a pair of sequences of inputs ids so that it can be used by the model. It
adds special tokens, truncates sequences if overflowing while taking into account the special tokens and
manages a moving window (with user defined stride) for overflowing tokens. Please Note, for *pair_ids*
different than `None` and *truncation_strategy = longest_first* or `True`, it is not possible to return
overflowing tokens. Such a combination of arguments will raise an error.
Args:
ids (`List[int]`):
Tokenized input ids of the first sequence. Can be obtained from a string by chaining the `tokenize` and
`convert_tokens_to_ids` methods.
pair_ids (`List[int]`, *optional*):
Tokenized input ids of the second sequence. Can be obtained from a string by chaining the `tokenize`
and `convert_tokens_to_ids` methods.
"""
# Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
padding=padding,
truncation=truncation,
max_length=max_length,
pad_to_multiple_of=pad_to_multiple_of,
verbose=verbose,
**kwargs,
)
pair = bool(pair_ids is not None)
len_ids = len(ids)
len_pair_ids = len(pair_ids) if pair else 0
if return_token_type_ids and not add_special_tokens:
raise ValueError(
"Asking to return token_type_ids while setting add_special_tokens to False "
"results in an undefined behavior. Please set add_special_tokens to True or "
"set return_token_type_ids to None."
)
if (
return_overflowing_tokens
and truncation_strategy == TruncationStrategy.LONGEST_FIRST
and pair_ids is not None
):
raise ValueError(
"Not possible to return overflowing tokens for pair of sequences with the "
"`longest_first`. Please select another truncation strategy than `longest_first`, "
"for instance `only_second` or `only_first`."
)
# Load from model defaults
if return_token_type_ids is None:
return_token_type_ids = "token_type_ids" in self.model_input_names
if return_attention_mask is None:
return_attention_mask = "attention_mask" in self.model_input_names
encoded_inputs = {}
# Compute the total size of the returned encodings
total_len = len_ids + len_pair_ids + (self.num_special_tokens_to_add(pair=pair) if add_special_tokens else 0)
# Truncation: Handle max sequence length
overflowing_tokens = []
if truncation_strategy != TruncationStrategy.DO_NOT_TRUNCATE and max_length and total_len > max_length:
ids, pair_ids, overflowing_tokens = self.truncate_sequences(
ids,
pair_ids=pair_ids,
num_tokens_to_remove=total_len - max_length,
truncation_strategy=truncation_strategy,
stride=stride,
)
if return_overflowing_tokens:
encoded_inputs["overflowing_tokens"] = overflowing_tokens
encoded_inputs["num_truncated_tokens"] = total_len - max_length
# Add special tokens
if add_special_tokens:
sequence = self.build_inputs_with_special_tokens(ids, pair_ids)
token_type_ids = self.create_token_type_ids_from_sequences(ids, pair_ids)
else:
sequence = ids + pair_ids if pair else ids
token_type_ids = [0] * len(ids) + ([0] * len(pair_ids) if pair else [])
# Build output dictionary
encoded_inputs["input_ids"] = sequence
if return_token_type_ids:
encoded_inputs["token_type_ids"] = token_type_ids
if return_special_tokens_mask:
if add_special_tokens:
encoded_inputs["special_tokens_mask"] = self.get_special_tokens_mask(ids, pair_ids)
else:
encoded_inputs["special_tokens_mask"] = [0] * len(sequence)
# Check lengths
self._eventual_warn_about_too_long_sequence(encoded_inputs["input_ids"], max_length, verbose)
# Padding
if padding_strategy != PaddingStrategy.DO_NOT_PAD or return_attention_mask:
encoded_inputs = self.pad(
encoded_inputs,
max_length=max_length,
padding=padding_strategy.value,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
)
if return_length:
encoded_inputs["length"] = len(encoded_inputs["input_ids"])
batch_outputs = BatchEncoding(
encoded_inputs, tensor_type=return_tensors, prepend_batch_axis=prepend_batch_axis
)
return batch_outputs
def truncate_sequences(
self,
ids: List[int],
pair_ids: Optional[List[int]] = None,
num_tokens_to_remove: int = 0,
truncation_strategy: Union[str, TruncationStrategy] = "longest_first",
stride: int = 0,
) -> Tuple[List[int], List[int], List[int]]:
"""
Truncates a sequence pair in-place following the strategy.
Args:
ids (`List[int]`):
Tokenized input ids of the first sequence. Can be obtained from a string by chaining the `tokenize` and
`convert_tokens_to_ids` methods.
pair_ids (`List[int]`, *optional*):
Tokenized input ids of the second sequence. Can be obtained from a string by chaining the `tokenize`
and `convert_tokens_to_ids` methods.
num_tokens_to_remove (`int`, *optional*, defaults to 0):
Number of tokens to remove using the truncation strategy.
truncation_strategy (`str` or [`~tokenization_utils_base.TruncationStrategy`], *optional*, defaults to `False`):
The strategy to follow for truncation. Can be:
- `'longest_first'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will truncate
token by token, removing a token from the longest sequence in the pair if a pair of sequences (or a
batch of pairs) is provided.
- `'only_first'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the first sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `'only_second'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the second sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `'do_not_truncate'` (default): No truncation (i.e., can output batch with sequence lengths greater
than the model maximum admissible input size).
stride (`int`, *optional*, defaults to 0):
If set to a positive number, the overflowing tokens returned will contain some tokens from the main
sequence returned. The value of this argument defines the number of additional tokens.
Returns:
`Tuple[List[int], List[int], List[int]]`: The truncated `ids`, the truncated `pair_ids` and the list of
overflowing tokens. Note: The *longest_first* strategy returns empty list of overflowing tokens if a pair
of sequences (or a batch of pairs) is provided.
"""
if num_tokens_to_remove <= 0:
return ids, pair_ids, []
if not isinstance(truncation_strategy, TruncationStrategy):
truncation_strategy = TruncationStrategy(truncation_strategy)
overflowing_tokens = []
if truncation_strategy == TruncationStrategy.ONLY_FIRST or (
truncation_strategy == TruncationStrategy.LONGEST_FIRST and pair_ids is None
):
if len(ids) > num_tokens_to_remove:
window_len = min(len(ids), stride + num_tokens_to_remove)
if self.truncation_side == "left":
overflowing_tokens = ids[:window_len]
ids = ids[num_tokens_to_remove:]
elif self.truncation_side == "right":
overflowing_tokens = ids[-window_len:]
ids = ids[:-num_tokens_to_remove]
else:
raise ValueError(f"invalid truncation strategy: {self.truncation_side}, use 'left' or 'right'.")
else:
error_msg = (
f"We need to remove {num_tokens_to_remove} to truncate the input "
f"but the first sequence has a length {len(ids)}. "
)
if truncation_strategy == TruncationStrategy.ONLY_FIRST:
error_msg = (
error_msg + "Please select another truncation strategy than "
f"{truncation_strategy}, for instance 'longest_first' or 'only_second'."
)
logger.error(error_msg)
elif truncation_strategy == TruncationStrategy.LONGEST_FIRST:
logger.warning(
"Be aware, overflowing tokens are not returned for the setting you have chosen,"
f" i.e. sequence pairs with the '{TruncationStrategy.LONGEST_FIRST.value}' "
"truncation strategy. So the returned list will always be empty even if some "
"tokens have been removed."
)
len_pair_ids = len(pair_ids) if pair_ids is not None else 0
len_ids = len(ids)
first_remove = min(abs(len_pair_ids - len_ids), num_tokens_to_remove)
second_remove = num_tokens_to_remove - first_remove
if len_ids > len_pair_ids:
ids_to_move = first_remove + second_remove // 2
pair_ids_to_move = second_remove - second_remove // 2
else:
ids_to_move = second_remove // 2
pair_ids_to_move = first_remove + second_remove - (second_remove // 2)
if self.truncation_side == "right":
ids = ids[:-ids_to_move] if ids_to_move > 0 else ids
pair_ids = pair_ids[:-pair_ids_to_move] if pair_ids is not None and pair_ids_to_move > 0 else pair_ids
elif self.truncation_side == "left":
ids = ids[ids_to_move:]
pair_ids = pair_ids[pair_ids_to_move:] if pair_ids is not None else None
else:
raise ValueError(f"invalid truncation strategy:{self.truncation_side}")
elif truncation_strategy == TruncationStrategy.ONLY_SECOND and pair_ids is not None:
if len(pair_ids) > num_tokens_to_remove:
window_len = min(len(pair_ids), stride + num_tokens_to_remove)
if self.truncation_side == "right":
overflowing_tokens = pair_ids[-window_len:]
pair_ids = pair_ids[:-num_tokens_to_remove]
elif self.truncation_side == "left":
overflowing_tokens = pair_ids[:window_len]
pair_ids = pair_ids[num_tokens_to_remove:]
else:
raise ValueError(f"invalid truncation strategy:{self.truncation_side}")
else:
logger.error(
f"We need to remove {num_tokens_to_remove} to truncate the input "
f"but the second sequence has a length {len(pair_ids)}. "
f"Please select another truncation strategy than {truncation_strategy}, "
"for instance 'longest_first' or 'only_first'."
)
return (ids, pair_ids, overflowing_tokens)
def _pad(
self,
encoded_inputs: Union[Dict[str, EncodedInput], BatchEncoding],
max_length: Optional[int] = None,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
pad_to_multiple_of: Optional[int] = None,
return_attention_mask: Optional[bool] = None,
) -> dict:
"""
Pad encoded inputs (on left/right and up to predefined length or max length in the batch)
Args:
encoded_inputs:
Dictionary of tokenized inputs (`List[int]`) or batch of tokenized inputs (`List[List[int]]`).
max_length: maximum length of the returned list and optionally padding length (see below).
Will truncate by taking into account the special tokens.
padding_strategy: PaddingStrategy to use for padding.
- PaddingStrategy.LONGEST Pad to the longest sequence in the batch
- PaddingStrategy.MAX_LENGTH: Pad to the max length (default)
- PaddingStrategy.DO_NOT_PAD: Do not pad
The tokenizer padding sides are defined in self.padding_side:
- 'left': pads on the left of the sequences
- 'right': pads on the right of the sequences
pad_to_multiple_of: (optional) Integer if set will pad the sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Core on NVIDIA hardware with compute capability
`>= 7.5` (Volta).
return_attention_mask:
(optional) Set to False to avoid returning attention mask (default: set to model specifics)
"""
# Load from model defaults
if return_attention_mask is None:
return_attention_mask = "attention_mask" in self.model_input_names
required_input = encoded_inputs[self.model_input_names[0]]
if padding_strategy == PaddingStrategy.LONGEST:
max_length = len(required_input)
if max_length is not None and pad_to_multiple_of is not None and (max_length % pad_to_multiple_of != 0):
max_length = ((max_length // pad_to_multiple_of) + 1) * pad_to_multiple_of
needs_to_be_padded = padding_strategy != PaddingStrategy.DO_NOT_PAD and len(required_input) != max_length
# Initialize attention mask if not present.
if return_attention_mask and "attention_mask" not in encoded_inputs:
encoded_inputs["attention_mask"] = [1] * len(required_input)
if needs_to_be_padded:
difference = max_length - len(required_input)
if self.padding_side == "right":
if return_attention_mask:
encoded_inputs["attention_mask"] = encoded_inputs["attention_mask"] + [0] * difference
if "token_type_ids" in encoded_inputs:
encoded_inputs["token_type_ids"] = (
encoded_inputs["token_type_ids"] + [self.pad_token_type_id] * difference
)
if "special_tokens_mask" in encoded_inputs:
encoded_inputs["special_tokens_mask"] = encoded_inputs["special_tokens_mask"] + [1] * difference
encoded_inputs[self.model_input_names[0]] = required_input + [self.pad_token_id] * difference
elif self.padding_side == "left":
if return_attention_mask:
encoded_inputs["attention_mask"] = [0] * difference + encoded_inputs["attention_mask"]
if "token_type_ids" in encoded_inputs:
encoded_inputs["token_type_ids"] = [self.pad_token_type_id] * difference + encoded_inputs[
"token_type_ids"
]
if "special_tokens_mask" in encoded_inputs:
encoded_inputs["special_tokens_mask"] = [1] * difference + encoded_inputs["special_tokens_mask"]
encoded_inputs[self.model_input_names[0]] = [self.pad_token_id] * difference + required_input
else:
raise ValueError(f"Invalid padding strategy:{self.padding_side}")
return encoded_inputs
def convert_tokens_to_string(self, tokens: List[str]) -> str:
"""
Converts a sequence of tokens in a single string. The most simple way to do it is `" ".join(tokens)` but we
often want to remove sub-word tokenization artifacts at the same time.
Args:
tokens (`List[str]`): The token to join in a string.
Returns:
`str`: The joined tokens.
"""
raise NotImplementedError
def batch_decode(
self,
sequences: Union[List[int], List[List[int]], "np.ndarray", "torch.Tensor", "tf.Tensor"],
skip_special_tokens: bool = False,
clean_up_tokenization_spaces: bool = None,
**kwargs,
) -> List[str]:
"""
Convert a list of lists of token ids into a list of strings by calling decode.
Args:
sequences (`Union[List[int], List[List[int]], np.ndarray, torch.Tensor, tf.Tensor]`):
List of tokenized input ids. Can be obtained using the `__call__` method.
skip_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to remove special tokens in the decoding.
clean_up_tokenization_spaces (`bool`, *optional*):
Whether or not to clean up the tokenization spaces. If `None`, will default to
`self.clean_up_tokenization_spaces`.
kwargs (additional keyword arguments, *optional*):
Will be passed to the underlying model specific decode method.
Returns:
`List[str]`: The list of decoded sentences.
"""
return [
self.decode(
seq,
skip_special_tokens=skip_special_tokens,
clean_up_tokenization_spaces=clean_up_tokenization_spaces,
**kwargs,
)
for seq in sequences
]
def decode(
self,
token_ids: Union[int, List[int], "np.ndarray", "torch.Tensor", "tf.Tensor"],
skip_special_tokens: bool = False,
clean_up_tokenization_spaces: bool = None,
**kwargs,
) -> str:
"""
Converts a sequence of ids in a string, using the tokenizer and vocabulary with options to remove special
tokens and clean up tokenization spaces.
Similar to doing `self.convert_tokens_to_string(self.convert_ids_to_tokens(token_ids))`.
Args:
token_ids (`Union[int, List[int], np.ndarray, torch.Tensor, tf.Tensor]`):
List of tokenized input ids. Can be obtained using the `__call__` method.
skip_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to remove special tokens in the decoding.
clean_up_tokenization_spaces (`bool`, *optional*):
Whether or not to clean up the tokenization spaces. If `None`, will default to
`self.clean_up_tokenization_spaces`.
kwargs (additional keyword arguments, *optional*):
Will be passed to the underlying model specific decode method.
Returns:
`str`: The decoded sentence.
"""
# Convert inputs to python lists
token_ids = to_py_obj(token_ids)
return self._decode(
token_ids=token_ids,
skip_special_tokens=skip_special_tokens,
clean_up_tokenization_spaces=clean_up_tokenization_spaces,
**kwargs,
)
def _decode(
self,
token_ids: Union[int, List[int]],
skip_special_tokens: bool = False,
clean_up_tokenization_spaces: bool = None,
**kwargs,
) -> str:
raise NotImplementedError
def get_special_tokens_mask(
self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
) -> List[int]:
"""
Retrieves sequence ids from a token list that has no special tokens added. This method is called when adding
special tokens using the tokenizer `prepare_for_model` or `encode_plus` methods.
Args:
token_ids_0 (`List[int]`):
List of ids of the first sequence.
token_ids_1 (`List[int]`, *optional*):
List of ids of the second sequence.
already_has_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the token list is already formatted with special tokens for the model.
Returns:
A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
"""
assert already_has_special_tokens and token_ids_1 is None, (
"You cannot use ``already_has_special_tokens=False`` with this tokenizer. "
"Please use a slow (full python) tokenizer to activate this argument. "
"Or set `return_special_tokens_mask=True` when calling the encoding method "
"to get the special tokens mask in any tokenizer. "
)
all_special_ids = self.all_special_ids # cache the property
special_tokens_mask = [1 if token in all_special_ids else 0 for token in token_ids_0]
return special_tokens_mask
@staticmethod
def clean_up_tokenization(out_string: str) -> str:
"""
Clean up a list of simple English tokenization artifacts like spaces before punctuations and abbreviated forms.
Args:
out_string (`str`): The text to clean up.
Returns:
`str`: The cleaned-up string.
"""
out_string = (
out_string.replace(" .", ".")
.replace(" ?", "?")
.replace(" !", "!")
.replace(" ,", ",")
.replace(" ' ", "'")
.replace(" n't", "n't")
.replace(" 'm", "'m")
.replace(" 's", "'s")
.replace(" 've", "'ve")
.replace(" 're", "'re")
)
return out_string
def _eventual_warn_about_too_long_sequence(self, ids: List[int], max_length: Optional[int], verbose: bool):
"""
Depending on the input and internal state we might trigger a warning about a sequence that is too long for its
corresponding model
Args:
ids (`List[str]`): The ids produced by the tokenization
max_length (`int`, *optional*): The max_length desired (does not trigger a warning if it is set)
verbose (`bool`): Whether or not to print more information and warnings.
"""
if max_length is None and len(ids) > self.model_max_length and verbose:
if not self.deprecation_warnings.get("sequence-length-is-longer-than-the-specified-maximum", False):
logger.warning(
"Token indices sequence length is longer than the specified maximum sequence length "
f"for this model ({len(ids)} > {self.model_max_length}). Running this sequence through the model "
"will result in indexing errors"
)
self.deprecation_warnings["sequence-length-is-longer-than-the-specified-maximum"] = True
def _switch_to_input_mode(self):
"""
Private method to put the tokenizer in input mode (when it has different modes for input/outputs)
"""
pass
def _switch_to_target_mode(self):
"""
Private method to put the tokenizer in target mode (when it has different modes for input/outputs)
"""
pass
@contextmanager
def as_target_tokenizer(self):
"""
Temporarily sets the tokenizer for encoding the targets. Useful for tokenizer associated to
sequence-to-sequence models that need a slightly different processing for the labels.
"""
warnings.warn(
"`as_target_tokenizer` is deprecated and will be removed in v5 of Transformers. You can tokenize your "
"labels by using the argument `text_target` of the regular `__call__` method (either in the same call as "
"your input texts if you use the same keyword arguments, or in a separate call."
)
self._switch_to_target_mode()
self._in_target_context_manager = True
yield
self._in_target_context_manager = False
self._switch_to_input_mode()
@classmethod
def register_for_auto_class(cls, auto_class="AutoTokenizer"):
"""
Register this class with a given auto class. This should only be used for custom tokenizers as the ones in the
library are already mapped with `AutoTokenizer`.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"AutoTokenizer"`):
The auto class to register this new tokenizer with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
def prepare_seq2seq_batch(
self,
src_texts: List[str],
tgt_texts: Optional[List[str]] = None,
max_length: Optional[int] = None,
max_target_length: Optional[int] = None,
padding: str = "longest",
return_tensors: str = None,
truncation: bool = True,
**kwargs,
) -> BatchEncoding:
"""
Prepare model inputs for translation. For best performance, translate one sentence at a time.
Arguments:
src_texts (`List[str]`):
List of documents to summarize or source language texts.
tgt_texts (`list`, *optional*):
List of summaries or target language texts.
max_length (`int`, *optional*):
Controls the maximum length for encoder inputs (documents to summarize or source language texts) If
left unset or set to `None`, this will use the predefined model maximum length if a maximum length is
required by one of the truncation/padding parameters. If the model has no specific maximum input length
(like XLNet) truncation/padding to a maximum length will be deactivated.
max_target_length (`int`, *optional*):
Controls the maximum length of decoder inputs (target language texts or summaries) If left unset or set
to `None`, this will use the max_length value.
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `False`):
Activates and controls padding. Accepts the following values:
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
acceptable input length for the model if that argument is not provided.
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
lengths).
return_tensors (`str` or [`~utils.TensorType`], *optional*):
If set, will return tensors instead of list of python integers. Acceptable values are:
- `'tf'`: Return TensorFlow `tf.constant` objects.
- `'pt'`: Return PyTorch `torch.Tensor` objects.
- `'np'`: Return Numpy `np.ndarray` objects.
truncation (`bool`, `str` or [`~tokenization_utils_base.TruncationStrategy`], *optional*, defaults to `True`):
Activates and controls truncation. Accepts the following values:
- `True` or `'longest_first'`: Truncate to a maximum length specified with the argument `max_length` or
to the maximum acceptable input length for the model if that argument is not provided. This will
truncate token by token, removing a token from the longest sequence in the pair if a pair of
sequences (or a batch of pairs) is provided.
- `'only_first'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the first sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `'only_second'`: Truncate to a maximum length specified with the argument `max_length` or to the
maximum acceptable input length for the model if that argument is not provided. This will only
truncate the second sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
- `False` or `'do_not_truncate'` (default): No truncation (i.e., can output batch with sequence lengths
greater than the model maximum admissible input size).
**kwargs:
Additional keyword arguments passed along to `self.__call__`.
Return:
[`BatchEncoding`]: A [`BatchEncoding`] with the following fields:
- **input_ids** -- List of token ids to be fed to the encoder.
- **attention_mask** -- List of indices specifying which tokens should be attended to by the model.
- **labels** -- List of token ids for tgt_texts.
The full set of keys `[input_ids, attention_mask, labels]`, will only be returned if tgt_texts is passed.
Otherwise, input_ids, attention_mask will be the only keys.
"""
# docstyle-ignore
formatted_warning = """
`prepare_seq2seq_batch` is deprecated and will be removed in version 5 of HuggingFace Transformers. Use the regular
`__call__` method to prepare your inputs and targets.
Here is a short example:
model_inputs = tokenizer(src_texts, text_target=tgt_texts, ...)
If you either need to use different keyword arguments for the source and target texts, you should do two calls like
this:
model_inputs = tokenizer(src_texts, ...)
labels = tokenizer(text_target=tgt_texts, ...)
model_inputs["labels"] = labels["input_ids"]
See the documentation of your specific tokenizer for more details on the specific arguments to the tokenizer of choice.
For a more complete example, see the implementation of `prepare_seq2seq_batch`.
"""
warnings.warn(formatted_warning, FutureWarning)
# mBART-specific kwargs that should be ignored by other models.
kwargs.pop("src_lang", None)
kwargs.pop("tgt_lang", None)
if max_length is None:
max_length = self.model_max_length
model_inputs = self(
src_texts,
add_special_tokens=True,
return_tensors=return_tensors,
max_length=max_length,
padding=padding,
truncation=truncation,
**kwargs,
)
if tgt_texts is None:
return model_inputs
# Process tgt_texts
if max_target_length is None:
max_target_length = max_length
with self.as_target_tokenizer():
labels = self(
tgt_texts,
add_special_tokens=True,
return_tensors=return_tensors,
padding=padding,
max_length=max_target_length,
truncation=truncation,
**kwargs,
)
model_inputs["labels"] = labels["input_ids"]
return model_inputs
def get_fast_tokenizer_file(tokenization_files: List[str]) -> str:
"""
Get the tokenization file to use for this version of transformers.
Args:
tokenization_files (`List[str]`): The list of available configuration files.
Returns:
`str`: The tokenization file to use.
"""
tokenizer_files_map = {}
for file_name in tokenization_files:
search = _re_tokenizer_file.search(file_name)
if search is not None:
v = search.groups()[0]
tokenizer_files_map[v] = file_name
available_versions = sorted(tokenizer_files_map.keys())
# Defaults to FULL_TOKENIZER_FILE and then try to look at some newer versions.
tokenizer_file = FULL_TOKENIZER_FILE
transformers_version = version.parse(__version__)
for v in available_versions:
if version.parse(v) <= transformers_version:
tokenizer_file = tokenizer_files_map[v]
else:
# No point going further since the versions are sorted.
break
return tokenizer_file
# To update the docstring, we need to copy the method, otherwise we change the original docstring.
PreTrainedTokenizerBase.push_to_hub = copy_func(PreTrainedTokenizerBase.push_to_hub)
if PreTrainedTokenizerBase.push_to_hub.__doc__ is not None:
PreTrainedTokenizerBase.push_to_hub.__doc__ = PreTrainedTokenizerBase.push_to_hub.__doc__.format(
object="tokenizer", object_class="AutoTokenizer", object_files="tokenizer files"
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/tokenization_utils_fast.py | # coding=utf-8
# Copyright 2020 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Tokenization classes for fast tokenizers (provided by HuggingFace's tokenizers library). For slow (python) tokenizers
see tokenization_utils.py
"""
import copy
import json
import os
from collections import defaultdict
from typing import Any, Dict, List, Optional, Tuple, Union
import tokenizers.pre_tokenizers as pre_tokenizers_fast
from tokenizers import Encoding as EncodingFast
from tokenizers import Tokenizer as TokenizerFast
from tokenizers.decoders import Decoder as DecoderFast
from tokenizers.trainers import BpeTrainer, UnigramTrainer, WordLevelTrainer, WordPieceTrainer
from .convert_slow_tokenizer import convert_slow_tokenizer
from .tokenization_utils import PreTrainedTokenizer
from .tokenization_utils_base import (
INIT_TOKENIZER_DOCSTRING,
AddedToken,
BatchEncoding,
PreTokenizedInput,
PreTokenizedInputPair,
PreTrainedTokenizerBase,
SpecialTokensMixin,
TextInput,
TextInputPair,
TruncationStrategy,
)
from .utils import PaddingStrategy, add_end_docstrings, logging
logger = logging.get_logger(__name__)
# Fast tokenizers (provided by HuggingFace tokenizer's library) can be saved in a single file
TOKENIZER_FILE = "tokenizer.json"
SPECIAL_TOKENS_MAP_FILE = "special_tokens_map.json"
TOKENIZER_CONFIG_FILE = "tokenizer_config.json"
# Slow tokenizers have an additional added tokens files
ADDED_TOKENS_FILE = "added_tokens.json"
INIT_TOKENIZER_DOCSTRING += """
tokenizer_object ([`tokenizers.Tokenizer`]):
A [`tokenizers.Tokenizer`] object from 🤗 tokenizers to instantiate from. See [Using tokenizers from 🤗
tokenizers](../fast_tokenizers) for more information.
tokenizer_file ([`str`]):
A path to a local JSON file representing a previously serialized [`tokenizers.Tokenizer`] object from 🤗
tokenizers.
"""
MODEL_TO_TRAINER_MAPPING = {
"BPE": BpeTrainer,
"Unigram": UnigramTrainer,
"WordLevel": WordLevelTrainer,
"WordPiece": WordPieceTrainer,
}
VOCAB_FILES_NAMES = {"tokenizer_file": TOKENIZER_FILE}
@add_end_docstrings(INIT_TOKENIZER_DOCSTRING)
class PreTrainedTokenizerFast(PreTrainedTokenizerBase):
"""
Base class for all fast tokenizers (wrapping HuggingFace tokenizers library).
Inherits from [`~tokenization_utils_base.PreTrainedTokenizerBase`].
Handles all the shared methods for tokenization and special tokens, as well as methods for
downloading/caching/loading pretrained tokenizers, as well as adding tokens to the vocabulary.
This class also contains the added tokens in a unified way on top of all tokenizers so we don't have to handle the
specific vocabulary augmentation methods of the various underlying dictionary structures (BPE, sentencepiece...).
"""
vocab_files_names = VOCAB_FILES_NAMES
slow_tokenizer_class: PreTrainedTokenizer = None
def __init__(self, *args, **kwargs):
tokenizer_object = kwargs.pop("tokenizer_object", None)
slow_tokenizer = kwargs.pop("__slow_tokenizer", None)
fast_tokenizer_file = kwargs.pop("tokenizer_file", None)
from_slow = kwargs.pop("from_slow", False)
added_tokens_decoder = kwargs.pop("added_tokens_decoder", {})
if from_slow and slow_tokenizer is None and self.slow_tokenizer_class is None:
raise ValueError(
"Cannot instantiate this tokenizer from a slow version. If it's based on sentencepiece, make sure you "
"have sentencepiece installed."
)
if tokenizer_object is not None:
fast_tokenizer = copy.deepcopy(tokenizer_object)
elif fast_tokenizer_file is not None and not from_slow:
# We have a serialization from tokenizers which let us directly build the backend
fast_tokenizer = TokenizerFast.from_file(fast_tokenizer_file)
elif slow_tokenizer is not None:
# We need to convert a slow tokenizer to build the backend
fast_tokenizer = convert_slow_tokenizer(slow_tokenizer)
elif self.slow_tokenizer_class is not None:
# We need to create and convert a slow tokenizer to build the backend
slow_tokenizer = self.slow_tokenizer_class(*args, **kwargs)
fast_tokenizer = convert_slow_tokenizer(slow_tokenizer)
else:
raise ValueError(
"Couldn't instantiate the backend tokenizer from one of: \n"
"(1) a `tokenizers` library serialization file, \n"
"(2) a slow tokenizer instance to convert or \n"
"(3) an equivalent slow tokenizer class to instantiate and convert. \n"
"You need to have sentencepiece installed to convert a slow tokenizer to a fast one."
)
self._tokenizer = fast_tokenizer
if slow_tokenizer is not None:
kwargs.update(slow_tokenizer.init_kwargs)
self._decode_use_source_tokenizer = False
_truncation = self._tokenizer.truncation
if _truncation is not None:
self._tokenizer.enable_truncation(**_truncation)
kwargs.setdefault("max_length", _truncation["max_length"])
kwargs.setdefault("truncation_side", _truncation["direction"])
kwargs.setdefault("stride", _truncation["stride"])
kwargs.setdefault("truncation_strategy", _truncation["strategy"])
else:
self._tokenizer.no_truncation()
_padding = self._tokenizer.padding
if _padding is not None:
self._tokenizer.enable_padding(**_padding)
kwargs.setdefault("pad_token", _padding["pad_token"])
kwargs.setdefault("pad_token_type_id", _padding["pad_type_id"])
kwargs.setdefault("padding_side", _padding["direction"])
kwargs.setdefault("max_length", _padding["length"])
kwargs.setdefault("pad_to_multiple_of", _padding["pad_to_multiple_of"])
# We call this after having initialized the backend tokenizer because we update it.
super().__init__(**kwargs)
# The following logic will be replace with a single add_tokens once a fix is pushed to tokenizers
# allows converting a slow -> fast, non-legacy: if the `tokenizer.json` does not have all the added tokens
# uses the information stored in `added_tokens_decoder`.
# this is costly for fast tokenizers as we re-compute the regex again. But not all tokens are added tokens
tokens_to_add = [
token
for index, token in sorted(added_tokens_decoder.items(), key=lambda x: x[0])
if token not in self.added_tokens_decoder
]
encoder = list(self.added_tokens_encoder.keys()) + [str(token) for token in tokens_to_add]
# if some of the special tokens are strings, we check if we don't already have a token
tokens_to_add += [
token for token in self.all_special_tokens_extended if token not in encoder and token not in tokens_to_add
]
if len(tokens_to_add) > 0:
# super hack: if a token.special is set, tokenizer ignores it for now so FIXME @ArthurZ
# Accumulate added tokens into batches of special/non-special tokens, because calling add_tokens() for
# individual tokens would repeatedly rebuild a trie, which can be slow.
is_last_special = None
tokens = []
special_tokens = self.all_special_tokens
for token in tokens_to_add:
is_special = (
(token.special or str(token) in special_tokens)
if isinstance(token, AddedToken)
else str(token) in special_tokens
)
if is_last_special is None or is_last_special == is_special:
tokens.append(token)
else:
self._add_tokens(tokens, special_tokens=is_last_special)
tokens = [token]
is_last_special = is_special
if tokens:
self._add_tokens(tokens, special_tokens=is_last_special)
@property
def is_fast(self) -> bool:
return True
@property
def can_save_slow_tokenizer(self) -> bool:
"""
`bool`: Whether or not the slow tokenizer can be saved. Usually for sentencepiece based slow tokenizer, this
can only be `True` if the original `"sentencepiece.model"` was not deleted.
"""
return True
@property
def vocab_size(self) -> int:
"""
`int`: Size of the base vocabulary (without the added tokens).
"""
return self._tokenizer.get_vocab_size(with_added_tokens=False)
def get_vocab(self) -> Dict[str, int]:
return self._tokenizer.get_vocab(with_added_tokens=True)
@property
def vocab(self) -> Dict[str, int]:
return self.get_vocab()
@property
def added_tokens_encoder(self) -> Dict[str, int]:
"""
Returns the sorted mapping from string to index. The added tokens encoder is cached for performance
optimisation in `self._added_tokens_encoder` for the slow tokenizers.
"""
return {k.content: v for v, k in sorted(self.added_tokens_decoder.items(), key=lambda item: item[0])}
@property
def added_tokens_decoder(self) -> Dict[int, AddedToken]:
"""
Returns the added tokens in the vocabulary as a dictionary of index to AddedToken.
Returns:
`Dict[str, int]`: The added tokens.
"""
return self._tokenizer.get_added_tokens_decoder()
def get_added_vocab(self) -> Dict[str, int]:
"""
Returns the added tokens in the vocabulary as a dictionary of token to index.
Returns:
`Dict[str, int]`: The added tokens.
"""
return {k.content: v for v, k in sorted(self.added_tokens_decoder.items(), key=lambda item: item[0])}
def __len__(self) -> int:
"""
Size of the full vocabulary with the added tokens.
"""
return self._tokenizer.get_vocab_size(with_added_tokens=True)
@property
def backend_tokenizer(self) -> TokenizerFast:
"""
`tokenizers.implementations.BaseTokenizer`: The Rust tokenizer used as a backend.
"""
return self._tokenizer
@property
def decoder(self) -> DecoderFast:
"""
`tokenizers.decoders.Decoder`: The Rust decoder for this tokenizer.
"""
return self._tokenizer.decoder
def _convert_encoding(
self,
encoding: EncodingFast,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
) -> Tuple[Dict[str, Any], List[EncodingFast]]:
"""
Convert the encoding representation (from low-level HuggingFace tokenizer output) to a python Dict and a list
of encodings, take care of building a batch from overflowing tokens.
Overflowing tokens are converted to additional examples (like batches) so the output values of the dict are
lists (overflows) of lists (tokens).
Output shape: (overflows, sequence length)
"""
if return_token_type_ids is None:
return_token_type_ids = "token_type_ids" in self.model_input_names
if return_attention_mask is None:
return_attention_mask = "attention_mask" in self.model_input_names
if return_overflowing_tokens and encoding.overflowing is not None:
encodings = [encoding] + encoding.overflowing
else:
encodings = [encoding]
encoding_dict = defaultdict(list)
for e in encodings:
encoding_dict["input_ids"].append(e.ids)
if return_token_type_ids:
encoding_dict["token_type_ids"].append(e.type_ids)
if return_attention_mask:
encoding_dict["attention_mask"].append(e.attention_mask)
if return_special_tokens_mask:
encoding_dict["special_tokens_mask"].append(e.special_tokens_mask)
if return_offsets_mapping:
encoding_dict["offset_mapping"].append(e.offsets)
if return_length:
encoding_dict["length"].append(len(e.ids))
return encoding_dict, encodings
def convert_tokens_to_ids(self, tokens: Union[str, List[str]]) -> Union[int, List[int]]:
"""
Converts a token string (or a sequence of tokens) in a single integer id (or a sequence of ids), using the
vocabulary.
Args:
tokens (`str` or `List[str]`): One or several token(s) to convert to token id(s).
Returns:
`int` or `List[int]`: The token id or list of token ids.
"""
if tokens is None:
return None
if isinstance(tokens, str):
return self._convert_token_to_id_with_added_voc(tokens)
return [self._convert_token_to_id_with_added_voc(token) for token in tokens]
def _convert_token_to_id_with_added_voc(self, token: str) -> int:
index = self._tokenizer.token_to_id(token)
if index is None:
return self.unk_token_id
return index
def _convert_id_to_token(self, index: int) -> Optional[str]:
return self._tokenizer.id_to_token(int(index))
def _add_tokens(self, new_tokens: List[Union[str, AddedToken]], special_tokens=False) -> int:
if special_tokens:
return self._tokenizer.add_special_tokens(new_tokens)
return self._tokenizer.add_tokens(new_tokens)
def num_special_tokens_to_add(self, pair: bool = False) -> int:
"""
Returns the number of added tokens when encoding a sequence with special tokens.
<Tip>
This encodes a dummy input and checks the number of added tokens, and is therefore not efficient. Do not put
this inside your training loop.
</Tip>
Args:
pair (`bool`, *optional*, defaults to `False`):
Whether the number of added tokens should be computed in the case of a sequence pair or a single
sequence.
Returns:
`int`: Number of special tokens added to sequences.
"""
return self._tokenizer.num_special_tokens_to_add(pair)
def convert_ids_to_tokens(
self, ids: Union[int, List[int]], skip_special_tokens: bool = False
) -> Union[str, List[str]]:
"""
Converts a single index or a sequence of indices in a token or a sequence of tokens, using the vocabulary and
added tokens.
Args:
ids (`int` or `List[int]`):
The token id (or token ids) to convert to tokens.
skip_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to remove special tokens in the decoding.
Returns:
`str` or `List[str]`: The decoded token(s).
"""
if isinstance(ids, int):
return self._tokenizer.id_to_token(ids)
tokens = []
for index in ids:
index = int(index)
if skip_special_tokens and index in self.all_special_ids:
continue
tokens.append(self._tokenizer.id_to_token(index))
return tokens
def tokenize(self, text: str, pair: Optional[str] = None, add_special_tokens: bool = False, **kwargs) -> List[str]:
return self.encode_plus(text=text, text_pair=pair, add_special_tokens=add_special_tokens, **kwargs).tokens()
def set_truncation_and_padding(
self,
padding_strategy: PaddingStrategy,
truncation_strategy: TruncationStrategy,
max_length: int,
stride: int,
pad_to_multiple_of: Optional[int],
):
"""
Define the truncation and the padding strategies for fast tokenizers (provided by HuggingFace tokenizers
library) and restore the tokenizer settings afterwards.
The provided tokenizer has no padding / truncation strategy before the managed section. If your tokenizer set a
padding / truncation strategy before, then it will be reset to no padding / truncation when exiting the managed
section.
Args:
padding_strategy ([`~utils.PaddingStrategy`]):
The kind of padding that will be applied to the input
truncation_strategy ([`~tokenization_utils_base.TruncationStrategy`]):
The kind of truncation that will be applied to the input
max_length (`int`):
The maximum size of a sequence.
stride (`int`):
The stride to use when handling overflow.
pad_to_multiple_of (`int`, *optional*):
If set will pad the sequence to a multiple of the provided value. This is especially useful to enable
the use of Tensor Cores on NVIDIA hardware with compute capability `>= 7.5` (Volta).
"""
_truncation = self._tokenizer.truncation
_padding = self._tokenizer.padding
# Set truncation and padding on the backend tokenizer
if truncation_strategy == TruncationStrategy.DO_NOT_TRUNCATE:
if _truncation is not None:
self._tokenizer.no_truncation()
else:
target = {
"max_length": max_length,
"stride": stride,
"strategy": truncation_strategy.value,
"direction": self.truncation_side,
}
# _truncation might contain more keys that the target `transformers`
# supports. Use only the target keys to trigger `enable_truncation`.
# This should enable this code to works on various `tokenizers`
# targets.
if _truncation is None:
current = None
else:
current = {k: _truncation.get(k, None) for k in target}
if current != target:
self._tokenizer.enable_truncation(**target)
if padding_strategy == PaddingStrategy.DO_NOT_PAD:
if _padding is not None:
self._tokenizer.no_padding()
else:
length = max_length if padding_strategy == PaddingStrategy.MAX_LENGTH else None
target = {
"length": length,
"direction": self.padding_side,
"pad_id": self.pad_token_id,
"pad_token": self.pad_token,
"pad_type_id": self.pad_token_type_id,
"pad_to_multiple_of": pad_to_multiple_of,
}
if _padding != target:
self._tokenizer.enable_padding(**target)
def _batch_encode_plus(
self,
batch_text_or_text_pairs: Union[
List[TextInput], List[TextInputPair], List[PreTokenizedInput], List[PreTokenizedInputPair]
],
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[str] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
) -> BatchEncoding:
if not isinstance(batch_text_or_text_pairs, (tuple, list)):
raise TypeError(
f"batch_text_or_text_pairs has to be a list or a tuple (got {type(batch_text_or_text_pairs)})"
)
# Set the truncation and padding strategy and restore the initial configuration
self.set_truncation_and_padding(
padding_strategy=padding_strategy,
truncation_strategy=truncation_strategy,
max_length=max_length,
stride=stride,
pad_to_multiple_of=pad_to_multiple_of,
)
encodings = self._tokenizer.encode_batch(
batch_text_or_text_pairs,
add_special_tokens=add_special_tokens,
is_pretokenized=is_split_into_words,
)
# Convert encoding to dict
# `Tokens` has type: Tuple[
# List[Dict[str, List[List[int]]]] or List[Dict[str, 2D-Tensor]],
# List[EncodingFast]
# ]
# with nested dimensions corresponding to batch, overflows, sequence length
tokens_and_encodings = [
self._convert_encoding(
encoding=encoding,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
)
for encoding in encodings
]
# Convert the output to have dict[list] from list[dict] and remove the additional overflows dimension
# From (variable) shape (batch, overflows, sequence length) to ~ (batch * overflows, sequence length)
# (we say ~ because the number of overflow varies with the example in the batch)
#
# To match each overflowing sample with the original sample in the batch
# we add an overflow_to_sample_mapping array (see below)
sanitized_tokens = {}
for key in tokens_and_encodings[0][0].keys():
stack = [e for item, _ in tokens_and_encodings for e in item[key]]
sanitized_tokens[key] = stack
sanitized_encodings = [e for _, item in tokens_and_encodings for e in item]
# If returning overflowing tokens, we need to return a mapping
# from the batch idx to the original sample
if return_overflowing_tokens:
overflow_to_sample_mapping = []
for i, (toks, _) in enumerate(tokens_and_encodings):
overflow_to_sample_mapping += [i] * len(toks["input_ids"])
sanitized_tokens["overflow_to_sample_mapping"] = overflow_to_sample_mapping
for input_ids in sanitized_tokens["input_ids"]:
self._eventual_warn_about_too_long_sequence(input_ids, max_length, verbose)
return BatchEncoding(sanitized_tokens, sanitized_encodings, tensor_type=return_tensors)
def _encode_plus(
self,
text: Union[TextInput, PreTokenizedInput],
text_pair: Optional[Union[TextInput, PreTokenizedInput]] = None,
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[bool] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
batched_input = [(text, text_pair)] if text_pair else [text]
batched_output = self._batch_encode_plus(
batched_input,
is_split_into_words=is_split_into_words,
add_special_tokens=add_special_tokens,
padding_strategy=padding_strategy,
truncation_strategy=truncation_strategy,
max_length=max_length,
stride=stride,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
return_token_type_ids=return_token_type_ids,
return_attention_mask=return_attention_mask,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_offsets_mapping=return_offsets_mapping,
return_length=return_length,
verbose=verbose,
**kwargs,
)
# Return tensor is None, then we can remove the leading batch axis
# Overflowing tokens are returned as a batch of output so we keep them in this case
if return_tensors is None and not return_overflowing_tokens:
batched_output = BatchEncoding(
{
key: value[0] if len(value) > 0 and isinstance(value[0], list) else value
for key, value in batched_output.items()
},
batched_output.encodings,
)
self._eventual_warn_about_too_long_sequence(batched_output["input_ids"], max_length, verbose)
return batched_output
def convert_tokens_to_string(self, tokens: List[str]) -> str:
return self.backend_tokenizer.decoder.decode(tokens)
def _decode(
self,
token_ids: Union[int, List[int]],
skip_special_tokens: bool = False,
clean_up_tokenization_spaces: bool = None,
**kwargs,
) -> str:
self._decode_use_source_tokenizer = kwargs.pop("use_source_tokenizer", False)
if isinstance(token_ids, int):
token_ids = [token_ids]
text = self._tokenizer.decode(token_ids, skip_special_tokens=skip_special_tokens)
clean_up_tokenization_spaces = (
clean_up_tokenization_spaces
if clean_up_tokenization_spaces is not None
else self.clean_up_tokenization_spaces
)
if clean_up_tokenization_spaces:
clean_text = self.clean_up_tokenization(text)
return clean_text
else:
return text
def _save_pretrained(
self,
save_directory: Union[str, os.PathLike],
file_names: Tuple[str],
legacy_format: Optional[bool] = None,
filename_prefix: Optional[str] = None,
) -> Tuple[str]:
"""
Save a tokenizer using the slow-tokenizer/legacy format: vocabulary + added tokens as well as in a unique JSON
file containing {config + vocab + added-tokens}.
"""
save_directory = str(save_directory)
if self.slow_tokenizer_class is None and legacy_format is True:
raise ValueError(
"Your tokenizer does not have a legacy version defined and therefore cannot register this version. You"
" might consider leaving the legacy_format at `None` or setting it to `False`."
)
save_slow = (
(legacy_format is None or legacy_format is True)
and self.slow_tokenizer_class is not None
and self.can_save_slow_tokenizer
)
save_fast = legacy_format is None or legacy_format is False
if save_slow:
added_tokens_file = os.path.join(
save_directory, (filename_prefix + "-" if filename_prefix else "") + ADDED_TOKENS_FILE
)
# make sure to be foward compatible
added_vocab = {tok: index for tok, index in self.added_tokens_encoder.items() if index >= self.vocab_size}
if added_vocab:
with open(added_tokens_file, "w", encoding="utf-8") as f:
out_str = json.dumps(added_vocab, indent=2, sort_keys=True, ensure_ascii=False) + "\n"
f.write(out_str)
vocab_files = self.save_vocabulary(save_directory, filename_prefix=filename_prefix)
file_names = file_names + vocab_files + (added_tokens_file,)
if save_fast:
tokenizer_file = os.path.join(
save_directory, (filename_prefix + "-" if filename_prefix else "") + TOKENIZER_FILE
)
self.backend_tokenizer.save(tokenizer_file)
file_names = file_names + (tokenizer_file,)
return file_names
def train_new_from_iterator(
self,
text_iterator,
vocab_size,
length=None,
new_special_tokens=None,
special_tokens_map=None,
**kwargs,
):
"""
Trains a tokenizer on a new corpus with the same defaults (in terms of special tokens or tokenization pipeline)
as the current one.
Args:
text_iterator (generator of `List[str]`):
The training corpus. Should be a generator of batches of texts, for instance a list of lists of texts
if you have everything in memory.
vocab_size (`int`):
The size of the vocabulary you want for your tokenizer.
length (`int`, *optional*):
The total number of sequences in the iterator. This is used to provide meaningful progress tracking
new_special_tokens (list of `str` or `AddedToken`, *optional*):
A list of new special tokens to add to the tokenizer you are training.
special_tokens_map (`Dict[str, str]`, *optional*):
If you want to rename some of the special tokens this tokenizer uses, pass along a mapping old special
token name to new special token name in this argument.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to the trainer from the 🤗 Tokenizers library.
Returns:
[`PreTrainedTokenizerFast`]: A new tokenizer of the same type as the original one, trained on
`text_iterator`.
"""
tokenizer_json = json.loads(self._tokenizer.to_str())
# Remove added tokens for now (uses IDs of tokens)
added_tokens = tokenizer_json.pop("added_tokens")
# Remove post processor for now (uses IDs of tokens)
post_processor = tokenizer_json.pop("post_processor")
unk_token = None
# Remove vocab
if tokenizer_json["model"]["type"] == "BPE":
tokenizer_json["model"]["vocab"] = {}
tokenizer_json["model"]["merges"] = []
elif tokenizer_json["model"]["type"] == "Unigram":
if tokenizer_json["model"]["unk_id"] is not None:
unk_id = tokenizer_json["model"]["unk_id"]
unk_token = tokenizer_json["model"]["vocab"][unk_id][0]
if special_tokens_map is not None and unk_token in special_tokens_map:
unk_token = special_tokens_map[unk_token]
tokenizer_json["model"]["unk_id"] = 0
tokenizer_json["model"]["vocab"] = [[unk_token, 0.0]]
elif tokenizer_json["model"]["type"] in ["WordLevel", "WordPiece"]:
tokenizer_json["model"]["vocab"] = {}
else:
raise ValueError(
f"This method does not support this type of tokenizer (found {tokenizer_json['model']['type']}) "
"only BPE, Unigram, WordLevel and WordPiece."
)
if (
special_tokens_map is not None
and "unk_token" in tokenizer_json["model"]
and tokenizer_json["model"]["unk_token"] in special_tokens_map
):
tokenizer_json["model"]["unk_token"] = special_tokens_map[tokenizer_json["model"]["unk_token"]]
tokenizer = TokenizerFast.from_str(json.dumps(tokenizer_json))
# Get the special tokens from the current tokenizer if none are specified.
special_tokens = []
for added_token in added_tokens:
special = added_token.pop("special", None)
_ = added_token.pop("id", None)
if tokenizer_json["model"]["type"] != "Unigram" and not special:
continue
if special_tokens_map is not None and added_token["content"] in special_tokens_map:
added_token["content"] = special_tokens_map[added_token["content"]]
special_tokens.append(AddedToken(**added_token))
if new_special_tokens is not None:
special_tokens.extend(new_special_tokens)
# Trainer needs to know the end of word / continuing subword thingies in BPE
if (
tokenizer_json["model"]["type"] == "BPE"
and "continuing_subword_prefix" not in kwargs
and tokenizer_json["model"]["continuing_subword_prefix"] is not None
):
kwargs["continuing_subword_prefix"] = tokenizer_json["model"]["continuing_subword_prefix"]
if (
tokenizer_json["model"]["type"] == "BPE"
and "end_of_word_suffix" not in kwargs
and tokenizer_json["model"]["end_of_word_suffix"] is not None
):
kwargs["end_of_word_suffix"] = tokenizer_json["model"]["end_of_word_suffix"]
if tokenizer_json["model"]["type"] == "Unigram" and unk_token is not None:
kwargs["unk_token"] = unk_token
if tokenizer_json["pre_tokenizer"] is not None and tokenizer_json["pre_tokenizer"]["type"] == "ByteLevel":
kwargs["initial_alphabet"] = pre_tokenizers_fast.ByteLevel.alphabet()
trainer_class = MODEL_TO_TRAINER_MAPPING[tokenizer_json["model"]["type"]]
trainer = trainer_class(vocab_size=vocab_size, special_tokens=special_tokens, **kwargs)
tokenizer.train_from_iterator(text_iterator, length=length, trainer=trainer)
if post_processor is not None:
trained_tokenizer_json = json.loads(tokenizer.to_str())
# Almost done, we just have to adjust the token IDs in the post processor
if "special_tokens" in post_processor:
for key in post_processor["special_tokens"]:
tokens = post_processor["special_tokens"][key]["tokens"]
if special_tokens_map is not None:
tokens = [special_tokens_map.get(token, token) for token in tokens]
post_processor["special_tokens"][key]["tokens"] = tokens
post_processor["special_tokens"][key]["ids"] = [tokenizer.token_to_id(token) for token in tokens]
for special_token in ["cls", "sep"]:
if special_token in post_processor:
token, _ = post_processor[special_token]
if special_tokens_map is not None and token in special_tokens_map:
token = special_tokens_map[token]
token_id = tokenizer.token_to_id(token)
post_processor[special_token] = [token, token_id]
trained_tokenizer_json["post_processor"] = post_processor
tokenizer = TokenizerFast.from_str(json.dumps(trained_tokenizer_json))
kwargs = self.init_kwargs.copy()
# Map pad/cls/mask token at the Transformers level
special_tokens_list = SpecialTokensMixin.SPECIAL_TOKENS_ATTRIBUTES.copy()
special_tokens_list.remove("additional_special_tokens")
for token in special_tokens_list:
# Get the private one to avoid unnecessary warnings.
if getattr(self, f"_{token}") is not None:
special_token = getattr(self, token)
if special_tokens_map is not None and special_token in special_tokens_map:
special_token = special_tokens_map[special_token]
special_token_full = getattr(self, f"_{token}")
if isinstance(special_token_full, AddedToken):
# Create an added token with the same parameters except the content
kwargs[token] = AddedToken(
special_token,
single_word=special_token_full.single_word,
lstrip=special_token_full.lstrip,
rstrip=special_token_full.rstrip,
normalized=special_token_full.normalized,
special=True,
)
else:
kwargs[token] = special_token
additional_special_tokens = self.additional_special_tokens
if new_special_tokens is not None:
additional_special_tokens.extend(new_special_tokens)
if len(additional_special_tokens) > 0:
kwargs["additional_special_tokens"] = additional_special_tokens
return self.__class__(tokenizer_object=tokenizer, **kwargs)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/testing_utils.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import collections
import contextlib
import doctest
import functools
import importlib
import inspect
import logging
import multiprocessing
import os
import re
import shlex
import shutil
import subprocess
import sys
import tempfile
import time
import unittest
from collections import defaultdict
from collections.abc import Mapping
from functools import wraps
from io import StringIO
from pathlib import Path
from typing import Callable, Dict, Iterable, Iterator, List, Optional, Union
from unittest import mock
from unittest.mock import patch
import urllib3
from transformers import logging as transformers_logging
from .integrations import (
is_clearml_available,
is_optuna_available,
is_ray_available,
is_sigopt_available,
is_tensorboard_available,
is_wandb_available,
)
from .integrations.deepspeed import is_deepspeed_available
from .utils import (
ACCELERATE_MIN_VERSION,
is_accelerate_available,
is_apex_available,
is_aqlm_available,
is_auto_awq_available,
is_auto_gptq_available,
is_av_available,
is_bitsandbytes_available,
is_bs4_available,
is_cv2_available,
is_cython_available,
is_decord_available,
is_detectron2_available,
is_eetq_available,
is_essentia_available,
is_faiss_available,
is_flash_attn_2_available,
is_flax_available,
is_fsdp_available,
is_ftfy_available,
is_g2p_en_available,
is_galore_torch_available,
is_ipex_available,
is_jieba_available,
is_jinja_available,
is_jumanpp_available,
is_keras_nlp_available,
is_levenshtein_available,
is_librosa_available,
is_natten_available,
is_nltk_available,
is_onnx_available,
is_optimum_available,
is_pandas_available,
is_peft_available,
is_phonemizer_available,
is_pretty_midi_available,
is_pyctcdecode_available,
is_pytesseract_available,
is_pytest_available,
is_pytorch_quantization_available,
is_quanto_available,
is_rjieba_available,
is_sacremoses_available,
is_safetensors_available,
is_scipy_available,
is_sentencepiece_available,
is_seqio_available,
is_soundfile_availble,
is_spacy_available,
is_sudachi_available,
is_sudachi_projection_available,
is_tensorflow_probability_available,
is_tensorflow_text_available,
is_tf2onnx_available,
is_tf_available,
is_timm_available,
is_tokenizers_available,
is_torch_available,
is_torch_bf16_available_on_device,
is_torch_bf16_cpu_available,
is_torch_bf16_gpu_available,
is_torch_fp16_available_on_device,
is_torch_neuroncore_available,
is_torch_npu_available,
is_torch_sdpa_available,
is_torch_tensorrt_fx_available,
is_torch_tf32_available,
is_torch_xla_available,
is_torch_xpu_available,
is_torchaudio_available,
is_torchdynamo_available,
is_torchvision_available,
is_vision_available,
strtobool,
)
if is_accelerate_available():
from accelerate.state import AcceleratorState, PartialState
if is_pytest_available():
from _pytest.doctest import (
Module,
_get_checker,
_get_continue_on_failure,
_get_runner,
_is_mocked,
_patch_unwrap_mock_aware,
get_optionflags,
)
from _pytest.outcomes import skip
from _pytest.pathlib import import_path
from pytest import DoctestItem
else:
Module = object
DoctestItem = object
SMALL_MODEL_IDENTIFIER = "julien-c/bert-xsmall-dummy"
DUMMY_UNKNOWN_IDENTIFIER = "julien-c/dummy-unknown"
DUMMY_DIFF_TOKENIZER_IDENTIFIER = "julien-c/dummy-diff-tokenizer"
# Used to test Auto{Config, Model, Tokenizer} model_type detection.
# Used to test the hub
USER = "__DUMMY_TRANSFORMERS_USER__"
ENDPOINT_STAGING = "https://hub-ci.huggingface.co"
# Not critical, only usable on the sandboxed CI instance.
TOKEN = "hf_94wBhPGp6KrrTH3KDchhKpRxZwd6dmHWLL"
def parse_flag_from_env(key, default=False):
try:
value = os.environ[key]
except KeyError:
# KEY isn't set, default to `default`.
_value = default
else:
# KEY is set, convert it to True or False.
try:
_value = strtobool(value)
except ValueError:
# More values are supported, but let's keep the message simple.
raise ValueError(f"If set, {key} must be yes or no.")
return _value
def parse_int_from_env(key, default=None):
try:
value = os.environ[key]
except KeyError:
_value = default
else:
try:
_value = int(value)
except ValueError:
raise ValueError(f"If set, {key} must be a int.")
return _value
_run_slow_tests = parse_flag_from_env("RUN_SLOW", default=False)
_run_pt_tf_cross_tests = parse_flag_from_env("RUN_PT_TF_CROSS_TESTS", default=True)
_run_pt_flax_cross_tests = parse_flag_from_env("RUN_PT_FLAX_CROSS_TESTS", default=True)
_run_custom_tokenizers = parse_flag_from_env("RUN_CUSTOM_TOKENIZERS", default=False)
_run_staging = parse_flag_from_env("HUGGINGFACE_CO_STAGING", default=False)
_tf_gpu_memory_limit = parse_int_from_env("TF_GPU_MEMORY_LIMIT", default=None)
_run_pipeline_tests = parse_flag_from_env("RUN_PIPELINE_TESTS", default=True)
_run_tool_tests = parse_flag_from_env("RUN_TOOL_TESTS", default=False)
_run_third_party_device_tests = parse_flag_from_env("RUN_THIRD_PARTY_DEVICE_TESTS", default=False)
def is_pt_tf_cross_test(test_case):
"""
Decorator marking a test as a test that control interactions between PyTorch and TensorFlow.
PT+TF tests are skipped by default and we can run only them by setting RUN_PT_TF_CROSS_TESTS environment variable
to a truthy value and selecting the is_pt_tf_cross_test pytest mark.
"""
if not _run_pt_tf_cross_tests or not is_torch_available() or not is_tf_available():
return unittest.skip("test is PT+TF test")(test_case)
else:
try:
import pytest # We don't need a hard dependency on pytest in the main library
except ImportError:
return test_case
else:
return pytest.mark.is_pt_tf_cross_test()(test_case)
def is_pt_flax_cross_test(test_case):
"""
Decorator marking a test as a test that control interactions between PyTorch and Flax
PT+FLAX tests are skipped by default and we can run only them by setting RUN_PT_FLAX_CROSS_TESTS environment
variable to a truthy value and selecting the is_pt_flax_cross_test pytest mark.
"""
if not _run_pt_flax_cross_tests or not is_torch_available() or not is_flax_available():
return unittest.skip("test is PT+FLAX test")(test_case)
else:
try:
import pytest # We don't need a hard dependency on pytest in the main library
except ImportError:
return test_case
else:
return pytest.mark.is_pt_flax_cross_test()(test_case)
def is_staging_test(test_case):
"""
Decorator marking a test as a staging test.
Those tests will run using the staging environment of huggingface.co instead of the real model hub.
"""
if not _run_staging:
return unittest.skip("test is staging test")(test_case)
else:
try:
import pytest # We don't need a hard dependency on pytest in the main library
except ImportError:
return test_case
else:
return pytest.mark.is_staging_test()(test_case)
def is_pipeline_test(test_case):
"""
Decorator marking a test as a pipeline test. If RUN_PIPELINE_TESTS is set to a falsy value, those tests will be
skipped.
"""
if not _run_pipeline_tests:
return unittest.skip("test is pipeline test")(test_case)
else:
try:
import pytest # We don't need a hard dependency on pytest in the main library
except ImportError:
return test_case
else:
return pytest.mark.is_pipeline_test()(test_case)
def is_tool_test(test_case):
"""
Decorator marking a test as a tool test. If RUN_TOOL_TESTS is set to a falsy value, those tests will be skipped.
"""
if not _run_tool_tests:
return unittest.skip("test is a tool test")(test_case)
else:
try:
import pytest # We don't need a hard dependency on pytest in the main library
except ImportError:
return test_case
else:
return pytest.mark.is_tool_test()(test_case)
def slow(test_case):
"""
Decorator marking a test as slow.
Slow tests are skipped by default. Set the RUN_SLOW environment variable to a truthy value to run them.
"""
return unittest.skipUnless(_run_slow_tests, "test is slow")(test_case)
def tooslow(test_case):
"""
Decorator marking a test as too slow.
Slow tests are skipped while they're in the process of being fixed. No test should stay tagged as "tooslow" as
these will not be tested by the CI.
"""
return unittest.skip("test is too slow")(test_case)
def custom_tokenizers(test_case):
"""
Decorator marking a test for a custom tokenizer.
Custom tokenizers require additional dependencies, and are skipped by default. Set the RUN_CUSTOM_TOKENIZERS
environment variable to a truthy value to run them.
"""
return unittest.skipUnless(_run_custom_tokenizers, "test of custom tokenizers")(test_case)
def require_bs4(test_case):
"""
Decorator marking a test that requires BeautifulSoup4. These tests are skipped when BeautifulSoup4 isn't installed.
"""
return unittest.skipUnless(is_bs4_available(), "test requires BeautifulSoup4")(test_case)
def require_galore_torch(test_case):
"""
Decorator marking a test that requires GaLore. These tests are skipped when GaLore isn't installed.
https://github.com/jiaweizzhao/GaLore
"""
return unittest.skipUnless(is_galore_torch_available(), "test requires GaLore")(test_case)
def require_cv2(test_case):
"""
Decorator marking a test that requires OpenCV.
These tests are skipped when OpenCV isn't installed.
"""
return unittest.skipUnless(is_cv2_available(), "test requires OpenCV")(test_case)
def require_levenshtein(test_case):
"""
Decorator marking a test that requires Levenshtein.
These tests are skipped when Levenshtein isn't installed.
"""
return unittest.skipUnless(is_levenshtein_available(), "test requires Levenshtein")(test_case)
def require_nltk(test_case):
"""
Decorator marking a test that requires NLTK.
These tests are skipped when NLTK isn't installed.
"""
return unittest.skipUnless(is_nltk_available(), "test requires NLTK")(test_case)
def require_accelerate(test_case, min_version: str = ACCELERATE_MIN_VERSION):
"""
Decorator marking a test that requires accelerate. These tests are skipped when accelerate isn't installed.
"""
return unittest.skipUnless(
is_accelerate_available(min_version), f"test requires accelerate version >= {min_version}"
)(test_case)
def require_fsdp(test_case, min_version: str = "1.12.0"):
"""
Decorator marking a test that requires fsdp. These tests are skipped when fsdp isn't installed.
"""
return unittest.skipUnless(is_fsdp_available(min_version), f"test requires torch version >= {min_version}")(
test_case
)
def require_g2p_en(test_case):
"""
Decorator marking a test that requires g2p_en. These tests are skipped when SentencePiece isn't installed.
"""
return unittest.skipUnless(is_g2p_en_available(), "test requires g2p_en")(test_case)
def require_safetensors(test_case):
"""
Decorator marking a test that requires safetensors. These tests are skipped when safetensors isn't installed.
"""
return unittest.skipUnless(is_safetensors_available(), "test requires safetensors")(test_case)
def require_rjieba(test_case):
"""
Decorator marking a test that requires rjieba. These tests are skipped when rjieba isn't installed.
"""
return unittest.skipUnless(is_rjieba_available(), "test requires rjieba")(test_case)
def require_jieba(test_case):
"""
Decorator marking a test that requires jieba. These tests are skipped when jieba isn't installed.
"""
return unittest.skipUnless(is_jieba_available(), "test requires jieba")(test_case)
def require_jinja(test_case):
"""
Decorator marking a test that requires jinja. These tests are skipped when jinja isn't installed.
"""
return unittest.skipUnless(is_jinja_available(), "test requires jinja")(test_case)
def require_tf2onnx(test_case):
return unittest.skipUnless(is_tf2onnx_available(), "test requires tf2onnx")(test_case)
def require_onnx(test_case):
return unittest.skipUnless(is_onnx_available(), "test requires ONNX")(test_case)
def require_timm(test_case):
"""
Decorator marking a test that requires Timm.
These tests are skipped when Timm isn't installed.
"""
return unittest.skipUnless(is_timm_available(), "test requires Timm")(test_case)
def require_natten(test_case):
"""
Decorator marking a test that requires NATTEN.
These tests are skipped when NATTEN isn't installed.
"""
return unittest.skipUnless(is_natten_available(), "test requires natten")(test_case)
def require_torch(test_case):
"""
Decorator marking a test that requires PyTorch.
These tests are skipped when PyTorch isn't installed.
"""
return unittest.skipUnless(is_torch_available(), "test requires PyTorch")(test_case)
def require_flash_attn(test_case):
"""
Decorator marking a test that requires Flash Attention.
These tests are skipped when Flash Attention isn't installed.
"""
return unittest.skipUnless(is_flash_attn_2_available(), "test requires Flash Attention")(test_case)
def require_torch_sdpa(test_case):
"""
Decorator marking a test that requires PyTorch's SDPA.
These tests are skipped when requirements are not met (torch version).
"""
return unittest.skipUnless(is_torch_sdpa_available(), "test requires PyTorch SDPA")(test_case)
def require_read_token(fn):
"""
A decorator that loads the HF token for tests that require to load gated models.
"""
token = os.getenv("HF_HUB_READ_TOKEN")
@wraps(fn)
def _inner(*args, **kwargs):
with patch("huggingface_hub.utils._headers.get_token", return_value=token):
return fn(*args, **kwargs)
return _inner
def require_peft(test_case):
"""
Decorator marking a test that requires PEFT.
These tests are skipped when PEFT isn't installed.
"""
return unittest.skipUnless(is_peft_available(), "test requires PEFT")(test_case)
def require_torchvision(test_case):
"""
Decorator marking a test that requires Torchvision.
These tests are skipped when Torchvision isn't installed.
"""
return unittest.skipUnless(is_torchvision_available(), "test requires Torchvision")(test_case)
def require_torch_or_tf(test_case):
"""
Decorator marking a test that requires PyTorch or TensorFlow.
These tests are skipped when neither PyTorch not TensorFlow is installed.
"""
return unittest.skipUnless(is_torch_available() or is_tf_available(), "test requires PyTorch or TensorFlow")(
test_case
)
def require_intel_extension_for_pytorch(test_case):
"""
Decorator marking a test that requires Intel Extension for PyTorch.
These tests are skipped when Intel Extension for PyTorch isn't installed or it does not match current PyTorch
version.
"""
return unittest.skipUnless(
is_ipex_available(),
"test requires Intel Extension for PyTorch to be installed and match current PyTorch version, see"
" https://github.com/intel/intel-extension-for-pytorch",
)(test_case)
def require_tensorflow_probability(test_case):
"""
Decorator marking a test that requires TensorFlow probability.
These tests are skipped when TensorFlow probability isn't installed.
"""
return unittest.skipUnless(is_tensorflow_probability_available(), "test requires TensorFlow probability")(
test_case
)
def require_torchaudio(test_case):
"""
Decorator marking a test that requires torchaudio. These tests are skipped when torchaudio isn't installed.
"""
return unittest.skipUnless(is_torchaudio_available(), "test requires torchaudio")(test_case)
def require_tf(test_case):
"""
Decorator marking a test that requires TensorFlow. These tests are skipped when TensorFlow isn't installed.
"""
return unittest.skipUnless(is_tf_available(), "test requires TensorFlow")(test_case)
def require_flax(test_case):
"""
Decorator marking a test that requires JAX & Flax. These tests are skipped when one / both are not installed
"""
return unittest.skipUnless(is_flax_available(), "test requires JAX & Flax")(test_case)
def require_sentencepiece(test_case):
"""
Decorator marking a test that requires SentencePiece. These tests are skipped when SentencePiece isn't installed.
"""
return unittest.skipUnless(is_sentencepiece_available(), "test requires SentencePiece")(test_case)
def require_sacremoses(test_case):
"""
Decorator marking a test that requires Sacremoses. These tests are skipped when Sacremoses isn't installed.
"""
return unittest.skipUnless(is_sacremoses_available(), "test requires Sacremoses")(test_case)
def require_seqio(test_case):
"""
Decorator marking a test that requires SentencePiece. These tests are skipped when SentencePiece isn't installed.
"""
return unittest.skipUnless(is_seqio_available(), "test requires Seqio")(test_case)
def require_scipy(test_case):
"""
Decorator marking a test that requires Scipy. These tests are skipped when SentencePiece isn't installed.
"""
return unittest.skipUnless(is_scipy_available(), "test requires Scipy")(test_case)
def require_tokenizers(test_case):
"""
Decorator marking a test that requires 🤗 Tokenizers. These tests are skipped when 🤗 Tokenizers isn't installed.
"""
return unittest.skipUnless(is_tokenizers_available(), "test requires tokenizers")(test_case)
def require_tensorflow_text(test_case):
"""
Decorator marking a test that requires tensorflow_text. These tests are skipped when tensroflow_text isn't
installed.
"""
return unittest.skipUnless(is_tensorflow_text_available(), "test requires tensorflow_text")(test_case)
def require_keras_nlp(test_case):
"""
Decorator marking a test that requires keras_nlp. These tests are skipped when keras_nlp isn't installed.
"""
return unittest.skipUnless(is_keras_nlp_available(), "test requires keras_nlp")(test_case)
def require_pandas(test_case):
"""
Decorator marking a test that requires pandas. These tests are skipped when pandas isn't installed.
"""
return unittest.skipUnless(is_pandas_available(), "test requires pandas")(test_case)
def require_pytesseract(test_case):
"""
Decorator marking a test that requires PyTesseract. These tests are skipped when PyTesseract isn't installed.
"""
return unittest.skipUnless(is_pytesseract_available(), "test requires PyTesseract")(test_case)
def require_pytorch_quantization(test_case):
"""
Decorator marking a test that requires PyTorch Quantization Toolkit. These tests are skipped when PyTorch
Quantization Toolkit isn't installed.
"""
return unittest.skipUnless(is_pytorch_quantization_available(), "test requires PyTorch Quantization Toolkit")(
test_case
)
def require_vision(test_case):
"""
Decorator marking a test that requires the vision dependencies. These tests are skipped when torchaudio isn't
installed.
"""
return unittest.skipUnless(is_vision_available(), "test requires vision")(test_case)
def require_ftfy(test_case):
"""
Decorator marking a test that requires ftfy. These tests are skipped when ftfy isn't installed.
"""
return unittest.skipUnless(is_ftfy_available(), "test requires ftfy")(test_case)
def require_spacy(test_case):
"""
Decorator marking a test that requires SpaCy. These tests are skipped when SpaCy isn't installed.
"""
return unittest.skipUnless(is_spacy_available(), "test requires spacy")(test_case)
def require_decord(test_case):
"""
Decorator marking a test that requires decord. These tests are skipped when decord isn't installed.
"""
return unittest.skipUnless(is_decord_available(), "test requires decord")(test_case)
def require_torch_multi_gpu(test_case):
"""
Decorator marking a test that requires a multi-GPU setup (in PyTorch). These tests are skipped on a machine without
multiple GPUs.
To run *only* the multi_gpu tests, assuming all test names contain multi_gpu: $ pytest -sv ./tests -k "multi_gpu"
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
import torch
return unittest.skipUnless(torch.cuda.device_count() > 1, "test requires multiple GPUs")(test_case)
def require_torch_multi_accelerator(test_case):
"""
Decorator marking a test that requires a multi-accelerator (in PyTorch). These tests are skipped on a machine
without multiple accelerators. To run *only* the multi_accelerator tests, assuming all test names contain
multi_accelerator: $ pytest -sv ./tests -k "multi_accelerator"
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
return unittest.skipUnless(backend_device_count(torch_device) > 1, "test requires multiple accelerators")(
test_case
)
def require_torch_non_multi_gpu(test_case):
"""
Decorator marking a test that requires 0 or 1 GPU setup (in PyTorch).
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
import torch
return unittest.skipUnless(torch.cuda.device_count() < 2, "test requires 0 or 1 GPU")(test_case)
def require_torch_non_multi_accelerator(test_case):
"""
Decorator marking a test that requires 0 or 1 accelerator setup (in PyTorch).
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
return unittest.skipUnless(backend_device_count(torch_device) < 2, "test requires 0 or 1 accelerator")(test_case)
def require_torch_up_to_2_gpus(test_case):
"""
Decorator marking a test that requires 0 or 1 or 2 GPU setup (in PyTorch).
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
import torch
return unittest.skipUnless(torch.cuda.device_count() < 3, "test requires 0 or 1 or 2 GPUs")(test_case)
def require_torch_up_to_2_accelerators(test_case):
"""
Decorator marking a test that requires 0 or 1 or 2 accelerator setup (in PyTorch).
"""
if not is_torch_available():
return unittest.skip("test requires PyTorch")(test_case)
return unittest.skipUnless(backend_device_count(torch_device) < 3, "test requires 0 or 1 or 2 accelerators")
(test_case)
def require_torch_xla(test_case):
"""
Decorator marking a test that requires TorchXLA (in PyTorch).
"""
return unittest.skipUnless(is_torch_xla_available(), "test requires TorchXLA")(test_case)
def require_torch_neuroncore(test_case):
"""
Decorator marking a test that requires NeuronCore (in PyTorch).
"""
return unittest.skipUnless(is_torch_neuroncore_available(check_device=False), "test requires PyTorch NeuronCore")(
test_case
)
def require_torch_npu(test_case):
"""
Decorator marking a test that requires NPU (in PyTorch).
"""
return unittest.skipUnless(is_torch_npu_available(), "test requires PyTorch NPU")(test_case)
def require_torch_multi_npu(test_case):
"""
Decorator marking a test that requires a multi-NPU setup (in PyTorch). These tests are skipped on a machine without
multiple NPUs.
To run *only* the multi_npu tests, assuming all test names contain multi_npu: $ pytest -sv ./tests -k "multi_npu"
"""
if not is_torch_npu_available():
return unittest.skip("test requires PyTorch NPU")(test_case)
return unittest.skipUnless(torch.npu.device_count() > 1, "test requires multiple NPUs")(test_case)
def require_torch_xpu(test_case):
"""
Decorator marking a test that requires XPU and IPEX.
These tests are skipped when Intel Extension for PyTorch isn't installed or it does not match current PyTorch
version.
"""
return unittest.skipUnless(is_torch_xpu_available(), "test requires IPEX and an XPU device")(test_case)
def require_torch_multi_xpu(test_case):
"""
Decorator marking a test that requires a multi-XPU setup with IPEX and at least one XPU device. These tests are
skipped on a machine without IPEX or multiple XPUs.
To run *only* the multi_xpu tests, assuming all test names contain multi_xpu: $ pytest -sv ./tests -k "multi_xpu"
"""
if not is_torch_xpu_available():
return unittest.skip("test requires IPEX and at least one XPU device")(test_case)
return unittest.skipUnless(torch.xpu.device_count() > 1, "test requires multiple XPUs")(test_case)
if is_torch_available():
# Set env var CUDA_VISIBLE_DEVICES="" to force cpu-mode
import torch
if "TRANSFORMERS_TEST_BACKEND" in os.environ:
backend = os.environ["TRANSFORMERS_TEST_BACKEND"]
try:
_ = importlib.import_module(backend)
except ModuleNotFoundError as e:
raise ModuleNotFoundError(
f"Failed to import `TRANSFORMERS_TEST_BACKEND` '{backend}'! This should be the name of an installed module. The original error (look up to see its"
f" traceback):\n{e}"
) from e
if "TRANSFORMERS_TEST_DEVICE" in os.environ:
torch_device = os.environ["TRANSFORMERS_TEST_DEVICE"]
if torch_device == "cuda" and not torch.cuda.is_available():
raise ValueError(
f"TRANSFORMERS_TEST_DEVICE={torch_device}, but CUDA is unavailable. Please double-check your testing environment."
)
if torch_device == "xpu" and not is_torch_xpu_available():
raise ValueError(
f"TRANSFORMERS_TEST_DEVICE={torch_device}, but XPU is unavailable. Please double-check your testing environment."
)
if torch_device == "npu" and not is_torch_npu_available():
raise ValueError(
f"TRANSFORMERS_TEST_DEVICE={torch_device}, but NPU is unavailable. Please double-check your testing environment."
)
try:
# try creating device to see if provided device is valid
_ = torch.device(torch_device)
except RuntimeError as e:
raise RuntimeError(
f"Unknown testing device specified by environment variable `TRANSFORMERS_TEST_DEVICE`: {torch_device}"
) from e
elif torch.cuda.is_available():
torch_device = "cuda"
elif _run_third_party_device_tests and is_torch_npu_available():
torch_device = "npu"
elif _run_third_party_device_tests and is_torch_xpu_available():
torch_device = "xpu"
else:
torch_device = "cpu"
else:
torch_device = None
if is_tf_available():
import tensorflow as tf
if is_flax_available():
import jax
jax_device = jax.default_backend()
else:
jax_device = None
def require_torchdynamo(test_case):
"""Decorator marking a test that requires TorchDynamo"""
return unittest.skipUnless(is_torchdynamo_available(), "test requires TorchDynamo")(test_case)
def require_torch_tensorrt_fx(test_case):
"""Decorator marking a test that requires Torch-TensorRT FX"""
return unittest.skipUnless(is_torch_tensorrt_fx_available(), "test requires Torch-TensorRT FX")(test_case)
def require_torch_gpu(test_case):
"""Decorator marking a test that requires CUDA and PyTorch."""
return unittest.skipUnless(torch_device == "cuda", "test requires CUDA")(test_case)
def require_torch_accelerator(test_case):
"""Decorator marking a test that requires an accessible accelerator and PyTorch."""
return unittest.skipUnless(torch_device is not None and torch_device != "cpu", "test requires accelerator")(
test_case
)
def require_torch_fp16(test_case):
"""Decorator marking a test that requires a device that supports fp16"""
return unittest.skipUnless(
is_torch_fp16_available_on_device(torch_device), "test requires device with fp16 support"
)(test_case)
def require_torch_bf16(test_case):
"""Decorator marking a test that requires a device that supports bf16"""
return unittest.skipUnless(
is_torch_bf16_available_on_device(torch_device), "test requires device with bf16 support"
)(test_case)
def require_torch_bf16_gpu(test_case):
"""Decorator marking a test that requires torch>=1.10, using Ampere GPU or newer arch with cuda>=11.0"""
return unittest.skipUnless(
is_torch_bf16_gpu_available(),
"test requires torch>=1.10, using Ampere GPU or newer arch with cuda>=11.0",
)(test_case)
def require_torch_bf16_cpu(test_case):
"""Decorator marking a test that requires torch>=1.10, using CPU."""
return unittest.skipUnless(
is_torch_bf16_cpu_available(),
"test requires torch>=1.10, using CPU",
)(test_case)
def require_torch_tf32(test_case):
"""Decorator marking a test that requires Ampere or a newer GPU arch, cuda>=11 and torch>=1.7."""
return unittest.skipUnless(
is_torch_tf32_available(), "test requires Ampere or a newer GPU arch, cuda>=11 and torch>=1.7"
)(test_case)
def require_detectron2(test_case):
"""Decorator marking a test that requires detectron2."""
return unittest.skipUnless(is_detectron2_available(), "test requires `detectron2`")(test_case)
def require_faiss(test_case):
"""Decorator marking a test that requires faiss."""
return unittest.skipUnless(is_faiss_available(), "test requires `faiss`")(test_case)
def require_optuna(test_case):
"""
Decorator marking a test that requires optuna.
These tests are skipped when optuna isn't installed.
"""
return unittest.skipUnless(is_optuna_available(), "test requires optuna")(test_case)
def require_ray(test_case):
"""
Decorator marking a test that requires Ray/tune.
These tests are skipped when Ray/tune isn't installed.
"""
return unittest.skipUnless(is_ray_available(), "test requires Ray/tune")(test_case)
def require_sigopt(test_case):
"""
Decorator marking a test that requires SigOpt.
These tests are skipped when SigOpt isn't installed.
"""
return unittest.skipUnless(is_sigopt_available(), "test requires SigOpt")(test_case)
def require_wandb(test_case):
"""
Decorator marking a test that requires wandb.
These tests are skipped when wandb isn't installed.
"""
return unittest.skipUnless(is_wandb_available(), "test requires wandb")(test_case)
def require_clearml(test_case):
"""
Decorator marking a test requires clearml.
These tests are skipped when clearml isn't installed.
"""
return unittest.skipUnless(is_clearml_available(), "test requires clearml")(test_case)
def require_soundfile(test_case):
"""
Decorator marking a test that requires soundfile
These tests are skipped when soundfile isn't installed.
"""
return unittest.skipUnless(is_soundfile_availble(), "test requires soundfile")(test_case)
def require_deepspeed(test_case):
"""
Decorator marking a test that requires deepspeed
"""
return unittest.skipUnless(is_deepspeed_available(), "test requires deepspeed")(test_case)
def require_apex(test_case):
"""
Decorator marking a test that requires apex
"""
return unittest.skipUnless(is_apex_available(), "test requires apex")(test_case)
def require_aqlm(test_case):
"""
Decorator marking a test that requires aqlm
"""
return unittest.skipUnless(is_aqlm_available(), "test requires aqlm")(test_case)
def require_eetq(test_case):
"""
Decorator marking a test that requires eetq
"""
return unittest.skipUnless(is_eetq_available(), "test requires eetq")(test_case)
def require_av(test_case):
"""
Decorator marking a test that requires av
"""
return unittest.skipUnless(is_av_available(), "test requires av")(test_case)
def require_bitsandbytes(test_case):
"""
Decorator marking a test that requires the bitsandbytes library. Will be skipped when the library or its hard dependency torch is not installed.
"""
if is_bitsandbytes_available() and is_torch_available():
try:
import pytest
return pytest.mark.bitsandbytes(test_case)
except ImportError:
return test_case
else:
return unittest.skip("test requires bitsandbytes and torch")(test_case)
def require_optimum(test_case):
"""
Decorator for optimum dependency
"""
return unittest.skipUnless(is_optimum_available(), "test requires optimum")(test_case)
def require_tensorboard(test_case):
"""
Decorator for `tensorboard` dependency
"""
return unittest.skipUnless(is_tensorboard_available(), "test requires tensorboard")
def require_auto_gptq(test_case):
"""
Decorator for auto_gptq dependency
"""
return unittest.skipUnless(is_auto_gptq_available(), "test requires auto-gptq")(test_case)
def require_auto_awq(test_case):
"""
Decorator for auto_awq dependency
"""
return unittest.skipUnless(is_auto_awq_available(), "test requires autoawq")(test_case)
def require_quanto(test_case):
"""
Decorator for quanto dependency
"""
return unittest.skipUnless(is_quanto_available(), "test requires quanto")(test_case)
def require_phonemizer(test_case):
"""
Decorator marking a test that requires phonemizer
"""
return unittest.skipUnless(is_phonemizer_available(), "test requires phonemizer")(test_case)
def require_pyctcdecode(test_case):
"""
Decorator marking a test that requires pyctcdecode
"""
return unittest.skipUnless(is_pyctcdecode_available(), "test requires pyctcdecode")(test_case)
def require_librosa(test_case):
"""
Decorator marking a test that requires librosa
"""
return unittest.skipUnless(is_librosa_available(), "test requires librosa")(test_case)
def require_essentia(test_case):
"""
Decorator marking a test that requires essentia
"""
return unittest.skipUnless(is_essentia_available(), "test requires essentia")(test_case)
def require_pretty_midi(test_case):
"""
Decorator marking a test that requires pretty_midi
"""
return unittest.skipUnless(is_pretty_midi_available(), "test requires pretty_midi")(test_case)
def cmd_exists(cmd):
return shutil.which(cmd) is not None
def require_usr_bin_time(test_case):
"""
Decorator marking a test that requires `/usr/bin/time`
"""
return unittest.skipUnless(cmd_exists("/usr/bin/time"), "test requires /usr/bin/time")(test_case)
def require_sudachi(test_case):
"""
Decorator marking a test that requires sudachi
"""
return unittest.skipUnless(is_sudachi_available(), "test requires sudachi")(test_case)
def require_sudachi_projection(test_case):
"""
Decorator marking a test that requires sudachi_projection
"""
return unittest.skipUnless(is_sudachi_projection_available(), "test requires sudachi which supports projection")(
test_case
)
def require_jumanpp(test_case):
"""
Decorator marking a test that requires jumanpp
"""
return unittest.skipUnless(is_jumanpp_available(), "test requires jumanpp")(test_case)
def require_cython(test_case):
"""
Decorator marking a test that requires jumanpp
"""
return unittest.skipUnless(is_cython_available(), "test requires cython")(test_case)
def get_gpu_count():
"""
Return the number of available gpus (regardless of whether torch, tf or jax is used)
"""
if is_torch_available():
import torch
return torch.cuda.device_count()
elif is_tf_available():
import tensorflow as tf
return len(tf.config.list_physical_devices("GPU"))
elif is_flax_available():
import jax
return jax.device_count()
else:
return 0
def get_tests_dir(append_path=None):
"""
Args:
append_path: optional path to append to the tests dir path
Return:
The full path to the `tests` dir, so that the tests can be invoked from anywhere. Optionally `append_path` is
joined after the `tests` dir the former is provided.
"""
# this function caller's __file__
caller__file__ = inspect.stack()[1][1]
tests_dir = os.path.abspath(os.path.dirname(caller__file__))
while not tests_dir.endswith("tests"):
tests_dir = os.path.dirname(tests_dir)
if append_path:
return os.path.join(tests_dir, append_path)
else:
return tests_dir
#
# Helper functions for dealing with testing text outputs
# The original code came from:
# https://github.com/fastai/fastai/blob/master/tests/utils/text.py
# When any function contains print() calls that get overwritten, like progress bars,
# a special care needs to be applied, since under pytest -s captured output (capsys
# or contextlib.redirect_stdout) contains any temporary printed strings, followed by
# \r's. This helper function ensures that the buffer will contain the same output
# with and without -s in pytest, by turning:
# foo bar\r tar mar\r final message
# into:
# final message
# it can handle a single string or a multiline buffer
def apply_print_resets(buf):
return re.sub(r"^.*\r", "", buf, 0, re.M)
def assert_screenout(out, what):
out_pr = apply_print_resets(out).lower()
match_str = out_pr.find(what.lower())
assert match_str != -1, f"expecting to find {what} in output: f{out_pr}"
class CaptureStd:
"""
Context manager to capture:
- stdout: replay it, clean it up and make it available via `obj.out`
- stderr: replay it and make it available via `obj.err`
Args:
out (`bool`, *optional*, defaults to `True`): Whether to capture stdout or not.
err (`bool`, *optional*, defaults to `True`): Whether to capture stderr or not.
replay (`bool`, *optional*, defaults to `True`): Whether to replay or not.
By default each captured stream gets replayed back on context's exit, so that one can see what the test was
doing. If this is a not wanted behavior and the captured data shouldn't be replayed, pass `replay=False` to
disable this feature.
Examples:
```python
# to capture stdout only with auto-replay
with CaptureStdout() as cs:
print("Secret message")
assert "message" in cs.out
# to capture stderr only with auto-replay
import sys
with CaptureStderr() as cs:
print("Warning: ", file=sys.stderr)
assert "Warning" in cs.err
# to capture both streams with auto-replay
with CaptureStd() as cs:
print("Secret message")
print("Warning: ", file=sys.stderr)
assert "message" in cs.out
assert "Warning" in cs.err
# to capture just one of the streams, and not the other, with auto-replay
with CaptureStd(err=False) as cs:
print("Secret message")
assert "message" in cs.out
# but best use the stream-specific subclasses
# to capture without auto-replay
with CaptureStd(replay=False) as cs:
print("Secret message")
assert "message" in cs.out
```"""
def __init__(self, out=True, err=True, replay=True):
self.replay = replay
if out:
self.out_buf = StringIO()
self.out = "error: CaptureStd context is unfinished yet, called too early"
else:
self.out_buf = None
self.out = "not capturing stdout"
if err:
self.err_buf = StringIO()
self.err = "error: CaptureStd context is unfinished yet, called too early"
else:
self.err_buf = None
self.err = "not capturing stderr"
def __enter__(self):
if self.out_buf:
self.out_old = sys.stdout
sys.stdout = self.out_buf
if self.err_buf:
self.err_old = sys.stderr
sys.stderr = self.err_buf
return self
def __exit__(self, *exc):
if self.out_buf:
sys.stdout = self.out_old
captured = self.out_buf.getvalue()
if self.replay:
sys.stdout.write(captured)
self.out = apply_print_resets(captured)
if self.err_buf:
sys.stderr = self.err_old
captured = self.err_buf.getvalue()
if self.replay:
sys.stderr.write(captured)
self.err = captured
def __repr__(self):
msg = ""
if self.out_buf:
msg += f"stdout: {self.out}\n"
if self.err_buf:
msg += f"stderr: {self.err}\n"
return msg
# in tests it's the best to capture only the stream that's wanted, otherwise
# it's easy to miss things, so unless you need to capture both streams, use the
# subclasses below (less typing). Or alternatively, configure `CaptureStd` to
# disable the stream you don't need to test.
class CaptureStdout(CaptureStd):
"""Same as CaptureStd but captures only stdout"""
def __init__(self, replay=True):
super().__init__(err=False, replay=replay)
class CaptureStderr(CaptureStd):
"""Same as CaptureStd but captures only stderr"""
def __init__(self, replay=True):
super().__init__(out=False, replay=replay)
class CaptureLogger:
"""
Context manager to capture `logging` streams
Args:
logger: 'logging` logger object
Returns:
The captured output is available via `self.out`
Example:
```python
>>> from transformers import logging
>>> from transformers.testing_utils import CaptureLogger
>>> msg = "Testing 1, 2, 3"
>>> logging.set_verbosity_info()
>>> logger = logging.get_logger("transformers.models.bart.tokenization_bart")
>>> with CaptureLogger(logger) as cl:
... logger.info(msg)
>>> assert cl.out, msg + "\n"
```
"""
def __init__(self, logger):
self.logger = logger
self.io = StringIO()
self.sh = logging.StreamHandler(self.io)
self.out = ""
def __enter__(self):
self.logger.addHandler(self.sh)
return self
def __exit__(self, *exc):
self.logger.removeHandler(self.sh)
self.out = self.io.getvalue()
def __repr__(self):
return f"captured: {self.out}\n"
@contextlib.contextmanager
def LoggingLevel(level):
"""
This is a context manager to temporarily change transformers modules logging level to the desired value and have it
restored to the original setting at the end of the scope.
Example:
```python
with LoggingLevel(logging.INFO):
AutoModel.from_pretrained("openai-community/gpt2") # calls logger.info() several times
```
"""
orig_level = transformers_logging.get_verbosity()
try:
transformers_logging.set_verbosity(level)
yield
finally:
transformers_logging.set_verbosity(orig_level)
@contextlib.contextmanager
# adapted from https://stackoverflow.com/a/64789046/9201239
def ExtendSysPath(path: Union[str, os.PathLike]) -> Iterator[None]:
"""
Temporary add given path to `sys.path`.
Usage :
```python
with ExtendSysPath("/path/to/dir"):
mymodule = importlib.import_module("mymodule")
```
"""
path = os.fspath(path)
try:
sys.path.insert(0, path)
yield
finally:
sys.path.remove(path)
class TestCasePlus(unittest.TestCase):
"""
This class extends *unittest.TestCase* with additional features.
Feature 1: A set of fully resolved important file and dir path accessors.
In tests often we need to know where things are relative to the current test file, and it's not trivial since the
test could be invoked from more than one directory or could reside in sub-directories with different depths. This
class solves this problem by sorting out all the basic paths and provides easy accessors to them:
- `pathlib` objects (all fully resolved):
- `test_file_path` - the current test file path (=`__file__`)
- `test_file_dir` - the directory containing the current test file
- `tests_dir` - the directory of the `tests` test suite
- `examples_dir` - the directory of the `examples` test suite
- `repo_root_dir` - the directory of the repository
- `src_dir` - the directory of `src` (i.e. where the `transformers` sub-dir resides)
- stringified paths---same as above but these return paths as strings, rather than `pathlib` objects:
- `test_file_path_str`
- `test_file_dir_str`
- `tests_dir_str`
- `examples_dir_str`
- `repo_root_dir_str`
- `src_dir_str`
Feature 2: Flexible auto-removable temporary dirs which are guaranteed to get removed at the end of test.
1. Create a unique temporary dir:
```python
def test_whatever(self):
tmp_dir = self.get_auto_remove_tmp_dir()
```
`tmp_dir` will contain the path to the created temporary dir. It will be automatically removed at the end of the
test.
2. Create a temporary dir of my choice, ensure it's empty before the test starts and don't
empty it after the test.
```python
def test_whatever(self):
tmp_dir = self.get_auto_remove_tmp_dir("./xxx")
```
This is useful for debug when you want to monitor a specific directory and want to make sure the previous tests
didn't leave any data in there.
3. You can override the first two options by directly overriding the `before` and `after` args, leading to the
following behavior:
`before=True`: the temporary dir will always be cleared at the beginning of the test.
`before=False`: if the temporary dir already existed, any existing files will remain there.
`after=True`: the temporary dir will always be deleted at the end of the test.
`after=False`: the temporary dir will always be left intact at the end of the test.
Note 1: In order to run the equivalent of `rm -r` safely, only subdirs of the project repository checkout are
allowed if an explicit `tmp_dir` is used, so that by mistake no `/tmp` or similar important part of the filesystem
will get nuked. i.e. please always pass paths that start with `./`
Note 2: Each test can register multiple temporary dirs and they all will get auto-removed, unless requested
otherwise.
Feature 3: Get a copy of the `os.environ` object that sets up `PYTHONPATH` specific to the current test suite. This
is useful for invoking external programs from the test suite - e.g. distributed training.
```python
def test_whatever(self):
env = self.get_env()
```"""
def setUp(self):
# get_auto_remove_tmp_dir feature:
self.teardown_tmp_dirs = []
# figure out the resolved paths for repo_root, tests, examples, etc.
self._test_file_path = inspect.getfile(self.__class__)
path = Path(self._test_file_path).resolve()
self._test_file_dir = path.parents[0]
for up in [1, 2, 3]:
tmp_dir = path.parents[up]
if (tmp_dir / "src").is_dir() and (tmp_dir / "tests").is_dir():
break
if tmp_dir:
self._repo_root_dir = tmp_dir
else:
raise ValueError(f"can't figure out the root of the repo from {self._test_file_path}")
self._tests_dir = self._repo_root_dir / "tests"
self._examples_dir = self._repo_root_dir / "examples"
self._src_dir = self._repo_root_dir / "src"
@property
def test_file_path(self):
return self._test_file_path
@property
def test_file_path_str(self):
return str(self._test_file_path)
@property
def test_file_dir(self):
return self._test_file_dir
@property
def test_file_dir_str(self):
return str(self._test_file_dir)
@property
def tests_dir(self):
return self._tests_dir
@property
def tests_dir_str(self):
return str(self._tests_dir)
@property
def examples_dir(self):
return self._examples_dir
@property
def examples_dir_str(self):
return str(self._examples_dir)
@property
def repo_root_dir(self):
return self._repo_root_dir
@property
def repo_root_dir_str(self):
return str(self._repo_root_dir)
@property
def src_dir(self):
return self._src_dir
@property
def src_dir_str(self):
return str(self._src_dir)
def get_env(self):
"""
Return a copy of the `os.environ` object that sets up `PYTHONPATH` correctly, depending on the test suite it's
invoked from. This is useful for invoking external programs from the test suite - e.g. distributed training.
It always inserts `./src` first, then `./tests` or `./examples` depending on the test suite type and finally
the preset `PYTHONPATH` if any (all full resolved paths).
"""
env = os.environ.copy()
paths = [self.src_dir_str]
if "/examples" in self.test_file_dir_str:
paths.append(self.examples_dir_str)
else:
paths.append(self.tests_dir_str)
paths.append(env.get("PYTHONPATH", ""))
env["PYTHONPATH"] = ":".join(paths)
return env
def get_auto_remove_tmp_dir(self, tmp_dir=None, before=None, after=None):
"""
Args:
tmp_dir (`string`, *optional*):
if `None`:
- a unique temporary path will be created
- sets `before=True` if `before` is `None`
- sets `after=True` if `after` is `None`
else:
- `tmp_dir` will be created
- sets `before=True` if `before` is `None`
- sets `after=False` if `after` is `None`
before (`bool`, *optional*):
If `True` and the `tmp_dir` already exists, make sure to empty it right away if `False` and the
`tmp_dir` already exists, any existing files will remain there.
after (`bool`, *optional*):
If `True`, delete the `tmp_dir` at the end of the test if `False`, leave the `tmp_dir` and its contents
intact at the end of the test.
Returns:
tmp_dir(`string`): either the same value as passed via *tmp_dir* or the path to the auto-selected tmp dir
"""
if tmp_dir is not None:
# defining the most likely desired behavior for when a custom path is provided.
# this most likely indicates the debug mode where we want an easily locatable dir that:
# 1. gets cleared out before the test (if it already exists)
# 2. is left intact after the test
if before is None:
before = True
if after is None:
after = False
# using provided path
path = Path(tmp_dir).resolve()
# to avoid nuking parts of the filesystem, only relative paths are allowed
if not tmp_dir.startswith("./"):
raise ValueError(
f"`tmp_dir` can only be a relative path, i.e. `./some/path`, but received `{tmp_dir}`"
)
# ensure the dir is empty to start with
if before is True and path.exists():
shutil.rmtree(tmp_dir, ignore_errors=True)
path.mkdir(parents=True, exist_ok=True)
else:
# defining the most likely desired behavior for when a unique tmp path is auto generated
# (not a debug mode), here we require a unique tmp dir that:
# 1. is empty before the test (it will be empty in this situation anyway)
# 2. gets fully removed after the test
if before is None:
before = True
if after is None:
after = True
# using unique tmp dir (always empty, regardless of `before`)
tmp_dir = tempfile.mkdtemp()
if after is True:
# register for deletion
self.teardown_tmp_dirs.append(tmp_dir)
return tmp_dir
def python_one_liner_max_rss(self, one_liner_str):
"""
Runs the passed python one liner (just the code) and returns how much max cpu memory was used to run the
program.
Args:
one_liner_str (`string`):
a python one liner code that gets passed to `python -c`
Returns:
max cpu memory bytes used to run the program. This value is likely to vary slightly from run to run.
Requirements:
this helper needs `/usr/bin/time` to be installed (`apt install time`)
Example:
```
one_liner_str = 'from transformers import AutoModel; AutoModel.from_pretrained("google-t5/t5-large")'
max_rss = self.python_one_liner_max_rss(one_liner_str)
```
"""
if not cmd_exists("/usr/bin/time"):
raise ValueError("/usr/bin/time is required, install with `apt install time`")
cmd = shlex.split(f"/usr/bin/time -f %M python -c '{one_liner_str}'")
with CaptureStd() as cs:
execute_subprocess_async(cmd, env=self.get_env())
# returned data is in KB so convert to bytes
max_rss = int(cs.err.split("\n")[-2].replace("stderr: ", "")) * 1024
return max_rss
def tearDown(self):
# get_auto_remove_tmp_dir feature: remove registered temp dirs
for path in self.teardown_tmp_dirs:
shutil.rmtree(path, ignore_errors=True)
self.teardown_tmp_dirs = []
if is_accelerate_available():
AcceleratorState._reset_state()
PartialState._reset_state()
# delete all the env variables having `ACCELERATE` in them
for k in list(os.environ.keys()):
if "ACCELERATE" in k:
del os.environ[k]
def mockenv(**kwargs):
"""
this is a convenience wrapper, that allows this ::
@mockenv(RUN_SLOW=True, USE_TF=False) def test_something():
run_slow = os.getenv("RUN_SLOW", False) use_tf = os.getenv("USE_TF", False)
"""
return mock.patch.dict(os.environ, kwargs)
# from https://stackoverflow.com/a/34333710/9201239
@contextlib.contextmanager
def mockenv_context(*remove, **update):
"""
Temporarily updates the `os.environ` dictionary in-place. Similar to mockenv
The `os.environ` dictionary is updated in-place so that the modification is sure to work in all situations.
Args:
remove: Environment variables to remove.
update: Dictionary of environment variables and values to add/update.
"""
env = os.environ
update = update or {}
remove = remove or []
# List of environment variables being updated or removed.
stomped = (set(update.keys()) | set(remove)) & set(env.keys())
# Environment variables and values to restore on exit.
update_after = {k: env[k] for k in stomped}
# Environment variables and values to remove on exit.
remove_after = frozenset(k for k in update if k not in env)
try:
env.update(update)
[env.pop(k, None) for k in remove]
yield
finally:
env.update(update_after)
[env.pop(k) for k in remove_after]
# --- pytest conf functions --- #
# to avoid multiple invocation from tests/conftest.py and examples/conftest.py - make sure it's called only once
pytest_opt_registered = {}
def pytest_addoption_shared(parser):
"""
This function is to be called from `conftest.py` via `pytest_addoption` wrapper that has to be defined there.
It allows loading both `conftest.py` files at once without causing a failure due to adding the same `pytest`
option.
"""
option = "--make-reports"
if option not in pytest_opt_registered:
parser.addoption(
option,
action="store",
default=False,
help="generate report files. The value of this option is used as a prefix to report names",
)
pytest_opt_registered[option] = 1
def pytest_terminal_summary_main(tr, id):
"""
Generate multiple reports at the end of test suite run - each report goes into a dedicated file in the current
directory. The report files are prefixed with the test suite name.
This function emulates --duration and -rA pytest arguments.
This function is to be called from `conftest.py` via `pytest_terminal_summary` wrapper that has to be defined
there.
Args:
- tr: `terminalreporter` passed from `conftest.py`
- id: unique id like `tests` or `examples` that will be incorporated into the final reports filenames - this is
needed as some jobs have multiple runs of pytest, so we can't have them overwrite each other.
NB: this functions taps into a private _pytest API and while unlikely, it could break should pytest do internal
changes - also it calls default internal methods of terminalreporter which can be hijacked by various `pytest-`
plugins and interfere.
"""
from _pytest.config import create_terminal_writer
if not len(id):
id = "tests"
config = tr.config
orig_writer = config.get_terminal_writer()
orig_tbstyle = config.option.tbstyle
orig_reportchars = tr.reportchars
dir = f"reports/{id}"
Path(dir).mkdir(parents=True, exist_ok=True)
report_files = {
k: f"{dir}/{k}.txt"
for k in [
"durations",
"errors",
"failures_long",
"failures_short",
"failures_line",
"passes",
"stats",
"summary_short",
"warnings",
]
}
# custom durations report
# note: there is no need to call pytest --durations=XX to get this separate report
# adapted from https://github.com/pytest-dev/pytest/blob/897f151e/src/_pytest/runner.py#L66
dlist = []
for replist in tr.stats.values():
for rep in replist:
if hasattr(rep, "duration"):
dlist.append(rep)
if dlist:
dlist.sort(key=lambda x: x.duration, reverse=True)
with open(report_files["durations"], "w") as f:
durations_min = 0.05 # sec
f.write("slowest durations\n")
for i, rep in enumerate(dlist):
if rep.duration < durations_min:
f.write(f"{len(dlist)-i} durations < {durations_min} secs were omitted")
break
f.write(f"{rep.duration:02.2f}s {rep.when:<8} {rep.nodeid}\n")
def summary_failures_short(tr):
# expecting that the reports were --tb=long (default) so we chop them off here to the last frame
reports = tr.getreports("failed")
if not reports:
return
tr.write_sep("=", "FAILURES SHORT STACK")
for rep in reports:
msg = tr._getfailureheadline(rep)
tr.write_sep("_", msg, red=True, bold=True)
# chop off the optional leading extra frames, leaving only the last one
longrepr = re.sub(r".*_ _ _ (_ ){10,}_ _ ", "", rep.longreprtext, 0, re.M | re.S)
tr._tw.line(longrepr)
# note: not printing out any rep.sections to keep the report short
# use ready-made report funcs, we are just hijacking the filehandle to log to a dedicated file each
# adapted from https://github.com/pytest-dev/pytest/blob/897f151e/src/_pytest/terminal.py#L814
# note: some pytest plugins may interfere by hijacking the default `terminalreporter` (e.g.
# pytest-instafail does that)
# report failures with line/short/long styles
config.option.tbstyle = "auto" # full tb
with open(report_files["failures_long"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.summary_failures()
# config.option.tbstyle = "short" # short tb
with open(report_files["failures_short"], "w") as f:
tr._tw = create_terminal_writer(config, f)
summary_failures_short(tr)
config.option.tbstyle = "line" # one line per error
with open(report_files["failures_line"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.summary_failures()
with open(report_files["errors"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.summary_errors()
with open(report_files["warnings"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.summary_warnings() # normal warnings
tr.summary_warnings() # final warnings
tr.reportchars = "wPpsxXEf" # emulate -rA (used in summary_passes() and short_test_summary())
# Skip the `passes` report, as it starts to take more than 5 minutes, and sometimes it timeouts on CircleCI if it
# takes > 10 minutes (as this part doesn't generate any output on the terminal).
# (also, it seems there is no useful information in this report, and we rarely need to read it)
# with open(report_files["passes"], "w") as f:
# tr._tw = create_terminal_writer(config, f)
# tr.summary_passes()
with open(report_files["summary_short"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.short_test_summary()
with open(report_files["stats"], "w") as f:
tr._tw = create_terminal_writer(config, f)
tr.summary_stats()
# restore:
tr._tw = orig_writer
tr.reportchars = orig_reportchars
config.option.tbstyle = orig_tbstyle
# --- distributed testing functions --- #
# adapted from https://stackoverflow.com/a/59041913/9201239
import asyncio # noqa
class _RunOutput:
def __init__(self, returncode, stdout, stderr):
self.returncode = returncode
self.stdout = stdout
self.stderr = stderr
async def _read_stream(stream, callback):
while True:
line = await stream.readline()
if line:
callback(line)
else:
break
async def _stream_subprocess(cmd, env=None, stdin=None, timeout=None, quiet=False, echo=False) -> _RunOutput:
if echo:
print("\nRunning: ", " ".join(cmd))
p = await asyncio.create_subprocess_exec(
cmd[0],
*cmd[1:],
stdin=stdin,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
env=env,
)
# note: there is a warning for a possible deadlock when using `wait` with huge amounts of data in the pipe
# https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.asyncio.subprocess.Process.wait
#
# If it starts hanging, will need to switch to the following code. The problem is that no data
# will be seen until it's done and if it hangs for example there will be no debug info.
# out, err = await p.communicate()
# return _RunOutput(p.returncode, out, err)
out = []
err = []
def tee(line, sink, pipe, label=""):
line = line.decode("utf-8").rstrip()
sink.append(line)
if not quiet:
print(label, line, file=pipe)
# XXX: the timeout doesn't seem to make any difference here
await asyncio.wait(
[
_read_stream(p.stdout, lambda l: tee(l, out, sys.stdout, label="stdout:")),
_read_stream(p.stderr, lambda l: tee(l, err, sys.stderr, label="stderr:")),
],
timeout=timeout,
)
return _RunOutput(await p.wait(), out, err)
def execute_subprocess_async(cmd, env=None, stdin=None, timeout=180, quiet=False, echo=True) -> _RunOutput:
loop = asyncio.get_event_loop()
result = loop.run_until_complete(
_stream_subprocess(cmd, env=env, stdin=stdin, timeout=timeout, quiet=quiet, echo=echo)
)
cmd_str = " ".join(cmd)
if result.returncode > 0:
stderr = "\n".join(result.stderr)
raise RuntimeError(
f"'{cmd_str}' failed with returncode {result.returncode}\n\n"
f"The combined stderr from workers follows:\n{stderr}"
)
# check that the subprocess actually did run and produced some output, should the test rely on
# the remote side to do the testing
if not result.stdout and not result.stderr:
raise RuntimeError(f"'{cmd_str}' produced no output.")
return result
def pytest_xdist_worker_id():
"""
Returns an int value of worker's numerical id under `pytest-xdist`'s concurrent workers `pytest -n N` regime, or 0
if `-n 1` or `pytest-xdist` isn't being used.
"""
worker = os.environ.get("PYTEST_XDIST_WORKER", "gw0")
worker = re.sub(r"^gw", "", worker, 0, re.M)
return int(worker)
def get_torch_dist_unique_port():
"""
Returns a port number that can be fed to `torch.distributed.launch`'s `--master_port` argument.
Under `pytest-xdist` it adds a delta number based on a worker id so that concurrent tests don't try to use the same
port at once.
"""
port = 29500
uniq_delta = pytest_xdist_worker_id()
return port + uniq_delta
def nested_simplify(obj, decimals=3):
"""
Simplifies an object by rounding float numbers, and downcasting tensors/numpy arrays to get simple equality test
within tests.
"""
import numpy as np
if isinstance(obj, list):
return [nested_simplify(item, decimals) for item in obj]
if isinstance(obj, tuple):
return tuple([nested_simplify(item, decimals) for item in obj])
elif isinstance(obj, np.ndarray):
return nested_simplify(obj.tolist())
elif isinstance(obj, Mapping):
return {nested_simplify(k, decimals): nested_simplify(v, decimals) for k, v in obj.items()}
elif isinstance(obj, (str, int, np.int64)):
return obj
elif obj is None:
return obj
elif is_torch_available() and isinstance(obj, torch.Tensor):
return nested_simplify(obj.tolist(), decimals)
elif is_tf_available() and tf.is_tensor(obj):
return nested_simplify(obj.numpy().tolist())
elif isinstance(obj, float):
return round(obj, decimals)
elif isinstance(obj, (np.int32, np.float32)):
return nested_simplify(obj.item(), decimals)
else:
raise Exception(f"Not supported: {type(obj)}")
def check_json_file_has_correct_format(file_path):
with open(file_path, "r") as f:
lines = f.readlines()
if len(lines) == 1:
# length can only be 1 if dict is empty
assert lines[0] == "{}"
else:
# otherwise make sure json has correct format (at least 3 lines)
assert len(lines) >= 3
# each key one line, ident should be 2, min length is 3
assert lines[0].strip() == "{"
for line in lines[1:-1]:
left_indent = len(lines[1]) - len(lines[1].lstrip())
assert left_indent == 2
assert lines[-1].strip() == "}"
def to_2tuple(x):
if isinstance(x, collections.abc.Iterable):
return x
return (x, x)
# These utils relate to ensuring the right error message is received when running scripts
class SubprocessCallException(Exception):
pass
def run_command(command: List[str], return_stdout=False):
"""
Runs `command` with `subprocess.check_output` and will potentially return the `stdout`. Will also properly capture
if an error occured while running `command`
"""
try:
output = subprocess.check_output(command, stderr=subprocess.STDOUT)
if return_stdout:
if hasattr(output, "decode"):
output = output.decode("utf-8")
return output
except subprocess.CalledProcessError as e:
raise SubprocessCallException(
f"Command `{' '.join(command)}` failed with the following error:\n\n{e.output.decode()}"
) from e
class RequestCounter:
"""
Helper class that will count all requests made online.
Might not be robust if urllib3 changes its logging format but should be good enough for us.
Usage:
```py
with RequestCounter() as counter:
_ = AutoTokenizer.from_pretrained("hf-internal-testing/tiny-random-bert")
assert counter["GET"] == 0
assert counter["HEAD"] == 1
assert counter.total_calls == 1
```
"""
def __enter__(self):
self._counter = defaultdict(int)
self.patcher = patch.object(urllib3.connectionpool.log, "debug", wraps=urllib3.connectionpool.log.debug)
self.mock = self.patcher.start()
return self
def __exit__(self, *args, **kwargs) -> None:
for call in self.mock.call_args_list:
log = call.args[0] % call.args[1:]
for method in ("HEAD", "GET", "POST", "PUT", "DELETE", "CONNECT", "OPTIONS", "TRACE", "PATCH"):
if method in log:
self._counter[method] += 1
break
self.patcher.stop()
def __getitem__(self, key: str) -> int:
return self._counter[key]
@property
def total_calls(self) -> int:
return sum(self._counter.values())
def is_flaky(max_attempts: int = 5, wait_before_retry: Optional[float] = None, description: Optional[str] = None):
"""
To decorate flaky tests. They will be retried on failures.
Args:
max_attempts (`int`, *optional*, defaults to 5):
The maximum number of attempts to retry the flaky test.
wait_before_retry (`float`, *optional*):
If provided, will wait that number of seconds before retrying the test.
description (`str`, *optional*):
A string to describe the situation (what / where / why is flaky, link to GH issue/PR comments, errors,
etc.)
"""
def decorator(test_func_ref):
@functools.wraps(test_func_ref)
def wrapper(*args, **kwargs):
retry_count = 1
while retry_count < max_attempts:
try:
return test_func_ref(*args, **kwargs)
except Exception as err:
print(f"Test failed with {err} at try {retry_count}/{max_attempts}.", file=sys.stderr)
if wait_before_retry is not None:
time.sleep(wait_before_retry)
retry_count += 1
return test_func_ref(*args, **kwargs)
return wrapper
return decorator
def run_test_in_subprocess(test_case, target_func, inputs=None, timeout=None):
"""
To run a test in a subprocess. In particular, this can avoid (GPU) memory issue.
Args:
test_case (`unittest.TestCase`):
The test that will run `target_func`.
target_func (`Callable`):
The function implementing the actual testing logic.
inputs (`dict`, *optional*, defaults to `None`):
The inputs that will be passed to `target_func` through an (input) queue.
timeout (`int`, *optional*, defaults to `None`):
The timeout (in seconds) that will be passed to the input and output queues. If not specified, the env.
variable `PYTEST_TIMEOUT` will be checked. If still `None`, its value will be set to `600`.
"""
if timeout is None:
timeout = int(os.environ.get("PYTEST_TIMEOUT", 600))
start_methohd = "spawn"
ctx = multiprocessing.get_context(start_methohd)
input_queue = ctx.Queue(1)
output_queue = ctx.JoinableQueue(1)
# We can't send `unittest.TestCase` to the child, otherwise we get issues regarding pickle.
input_queue.put(inputs, timeout=timeout)
process = ctx.Process(target=target_func, args=(input_queue, output_queue, timeout))
process.start()
# Kill the child process if we can't get outputs from it in time: otherwise, the hanging subprocess prevents
# the test to exit properly.
try:
results = output_queue.get(timeout=timeout)
output_queue.task_done()
except Exception as e:
process.terminate()
test_case.fail(e)
process.join(timeout=timeout)
if results["error"] is not None:
test_case.fail(f'{results["error"]}')
"""
The following contains utils to run the documentation tests without having to overwrite any files.
The `preprocess_string` function adds `# doctest: +IGNORE_RESULT` markers on the fly anywhere a `load_dataset` call is
made as a print would otherwise fail the corresonding line.
To skip cuda tests, make sure to call `SKIP_CUDA_DOCTEST=1 pytest --doctest-modules <path_to_files_to_test>
"""
def preprocess_string(string, skip_cuda_tests):
"""Prepare a docstring or a `.md` file to be run by doctest.
The argument `string` would be the whole file content if it is a `.md` file. For a python file, it would be one of
its docstring. In each case, it may contain multiple python code examples. If `skip_cuda_tests` is `True` and a
cuda stuff is detective (with a heuristic), this method will return an empty string so no doctest will be run for
`string`.
"""
codeblock_pattern = r"(```(?:python|py)\s*\n\s*>>> )((?:.*?\n)*?.*?```)"
codeblocks = re.split(re.compile(codeblock_pattern, flags=re.MULTILINE | re.DOTALL), string)
is_cuda_found = False
for i, codeblock in enumerate(codeblocks):
if "load_dataset(" in codeblock and "# doctest: +IGNORE_RESULT" not in codeblock:
codeblocks[i] = re.sub(r"(>>> .*load_dataset\(.*)", r"\1 # doctest: +IGNORE_RESULT", codeblock)
if (
(">>>" in codeblock or "..." in codeblock)
and re.search(r"cuda|to\(0\)|device=0", codeblock)
and skip_cuda_tests
):
is_cuda_found = True
break
modified_string = ""
if not is_cuda_found:
modified_string = "".join(codeblocks)
return modified_string
class HfDocTestParser(doctest.DocTestParser):
"""
Overwrites the DocTestParser from doctest to properly parse the codeblocks that are formatted with black. This
means that there are no extra lines at the end of our snippets. The `# doctest: +IGNORE_RESULT` marker is also
added anywhere a `load_dataset` call is made as a print would otherwise fail the corresponding line.
Tests involving cuda are skipped base on a naive pattern that should be updated if it is not enough.
"""
# This regular expression is used to find doctest examples in a
# string. It defines three groups: `source` is the source code
# (including leading indentation and prompts); `indent` is the
# indentation of the first (PS1) line of the source code; and
# `want` is the expected output (including leading indentation).
# fmt: off
_EXAMPLE_RE = re.compile(r'''
# Source consists of a PS1 line followed by zero or more PS2 lines.
(?P<source>
(?:^(?P<indent> [ ]*) >>> .*) # PS1 line
(?:\n [ ]* \.\.\. .*)*) # PS2 lines
\n?
# Want consists of any non-blank lines that do not start with PS1.
(?P<want> (?:(?![ ]*$) # Not a blank line
(?![ ]*>>>) # Not a line starting with PS1
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
(?:(?!```).)* # Match any character except '`' until a '```' is found (this is specific to HF because black removes the last line)
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
(?:\n|$) # Match a new line or end of string
)*)
''', re.MULTILINE | re.VERBOSE
)
# fmt: on
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
skip_cuda_tests: bool = bool(os.environ.get("SKIP_CUDA_DOCTEST", False))
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
def parse(self, string, name="<string>"):
"""
Overwrites the `parse` method to incorporate a skip for CUDA tests, and remove logs and dataset prints before
calling `super().parse`
"""
string = preprocess_string(string, self.skip_cuda_tests)
return super().parse(string, name)
class HfDoctestModule(Module):
"""
Overwrites the `DoctestModule` of the pytest package to make sure the HFDocTestParser is used when discovering
tests.
"""
def collect(self) -> Iterable[DoctestItem]:
class MockAwareDocTestFinder(doctest.DocTestFinder):
"""A hackish doctest finder that overrides stdlib internals to fix a stdlib bug.
https://github.com/pytest-dev/pytest/issues/3456 https://bugs.python.org/issue25532
"""
def _find_lineno(self, obj, source_lines):
"""Doctest code does not take into account `@property`, this
is a hackish way to fix it. https://bugs.python.org/issue17446
Wrapped Doctests will need to be unwrapped so the correct line number is returned. This will be
reported upstream. #8796
"""
if isinstance(obj, property):
obj = getattr(obj, "fget", obj)
if hasattr(obj, "__wrapped__"):
# Get the main obj in case of it being wrapped
obj = inspect.unwrap(obj)
# Type ignored because this is a private function.
return super()._find_lineno( # type:ignore[misc]
obj,
source_lines,
)
def _find(self, tests, obj, name, module, source_lines, globs, seen) -> None:
if _is_mocked(obj):
return
with _patch_unwrap_mock_aware():
# Type ignored because this is a private function.
super()._find( # type:ignore[misc]
tests, obj, name, module, source_lines, globs, seen
)
if self.path.name == "conftest.py":
module = self.config.pluginmanager._importconftest(
self.path,
self.config.getoption("importmode"),
rootpath=self.config.rootpath,
)
else:
try:
module = import_path(
self.path,
root=self.config.rootpath,
mode=self.config.getoption("importmode"),
)
except ImportError:
if self.config.getvalue("doctest_ignore_import_errors"):
skip("unable to import module %r" % self.path)
else:
raise
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
finder = MockAwareDocTestFinder(parser=HfDocTestParser())
# !!!!!!!!!!! HF Specific !!!!!!!!!!!
optionflags = get_optionflags(self)
runner = _get_runner(
verbose=False,
optionflags=optionflags,
checker=_get_checker(),
continue_on_failure=_get_continue_on_failure(self.config),
)
for test in finder.find(module, module.__name__):
if test.examples: # skip empty doctests and cuda
yield DoctestItem.from_parent(self, name=test.name, runner=runner, dtest=test)
def _device_agnostic_dispatch(device: str, dispatch_table: Dict[str, Callable], *args, **kwargs):
if device not in dispatch_table:
return dispatch_table["default"](*args, **kwargs)
fn = dispatch_table[device]
# Some device agnostic functions return values. Need to guard against `None`
# instead at user level.
if fn is None:
return None
return fn(*args, **kwargs)
if is_torch_available():
# Mappings from device names to callable functions to support device agnostic
# testing.
BACKEND_MANUAL_SEED = {"cuda": torch.cuda.manual_seed, "cpu": torch.manual_seed, "default": torch.manual_seed}
BACKEND_EMPTY_CACHE = {"cuda": torch.cuda.empty_cache, "cpu": None, "default": None}
BACKEND_DEVICE_COUNT = {"cuda": torch.cuda.device_count, "cpu": lambda: 0, "default": lambda: 1}
def backend_manual_seed(device: str, seed: int):
return _device_agnostic_dispatch(device, BACKEND_MANUAL_SEED, seed)
def backend_empty_cache(device: str):
return _device_agnostic_dispatch(device, BACKEND_EMPTY_CACHE)
def backend_device_count(device: str):
return _device_agnostic_dispatch(device, BACKEND_DEVICE_COUNT)
if is_torch_available():
# If `TRANSFORMERS_TEST_DEVICE_SPEC` is enabled we need to import extra entries
# into device to function mappings.
if "TRANSFORMERS_TEST_DEVICE_SPEC" in os.environ:
device_spec_path = os.environ["TRANSFORMERS_TEST_DEVICE_SPEC"]
if not Path(device_spec_path).is_file():
raise ValueError(
f"Specified path to device spec file is not a file or not found. Received '{device_spec_path}"
)
# Try to strip extension for later import – also verifies we are importing a
# python file.
try:
import_name = device_spec_path[: device_spec_path.index(".py")]
except ValueError as e:
raise ValueError(f"Provided device spec file was not a Python file! Received '{device_spec_path}") from e
device_spec_module = importlib.import_module(import_name)
# Imported file must contain `DEVICE_NAME`. If it doesn't, terminate early.
try:
device_name = device_spec_module.DEVICE_NAME
except AttributeError as e:
raise AttributeError("Device spec file did not contain `DEVICE_NAME`") from e
if "TRANSFORMERS_TEST_DEVICE" in os.environ and torch_device != device_name:
msg = f"Mismatch between environment variable `TRANSFORMERS_TEST_DEVICE` '{torch_device}' and device found in spec '{device_name}'\n"
msg += "Either unset `TRANSFORMERS_TEST_DEVICE` or ensure it matches device spec name."
raise ValueError(msg)
torch_device = device_name
def update_mapping_from_spec(device_fn_dict: Dict[str, Callable], attribute_name: str):
try:
# Try to import the function directly
spec_fn = getattr(device_spec_module, attribute_name)
device_fn_dict[torch_device] = spec_fn
except AttributeError as e:
# If the function doesn't exist, and there is no default, throw an error
if "default" not in device_fn_dict:
raise AttributeError(
f"`{attribute_name}` not found in '{device_spec_path}' and no default fallback function found."
) from e
# Add one entry here for each `BACKEND_*` dictionary.
update_mapping_from_spec(BACKEND_MANUAL_SEED, "MANUAL_SEED_FN")
update_mapping_from_spec(BACKEND_EMPTY_CACHE, "EMPTY_CACHE_FN")
update_mapping_from_spec(BACKEND_DEVICE_COUNT, "DEVICE_COUNT_FN")
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_tf_utils.py | # coding=utf-8
# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""TF general model utils."""
from __future__ import annotations
import functools
import gc
import inspect
import json
import os
import pickle
import re
import warnings
from collections.abc import Mapping
from pathlib import Path
from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Union
import h5py
import numpy as np
import tensorflow as tf
from packaging.version import parse
from . import DataCollatorWithPadding, DefaultDataCollator
from .activations_tf import get_tf_activation
from .configuration_utils import PretrainedConfig
from .dynamic_module_utils import custom_object_save
from .generation import GenerationConfig, TFGenerationMixin
from .tf_utils import (
convert_batch_encoding,
expand_1d,
load_attributes_from_hdf5_group,
save_attributes_to_hdf5_group,
shape_list,
)
from .utils import (
SAFE_WEIGHTS_INDEX_NAME,
SAFE_WEIGHTS_NAME,
TF2_WEIGHTS_INDEX_NAME,
TF2_WEIGHTS_NAME,
TF_WEIGHTS_NAME,
WEIGHTS_INDEX_NAME,
WEIGHTS_NAME,
ModelOutput,
PushToHubMixin,
cached_file,
download_url,
find_labels,
has_file,
is_offline_mode,
is_remote_url,
is_safetensors_available,
is_tf_symbolic_tensor,
logging,
requires_backends,
working_or_temp_dir,
)
from .utils.hub import convert_file_size_to_int, get_checkpoint_shard_files
if is_safetensors_available():
from safetensors import safe_open
from safetensors.tensorflow import save_file as safe_save_file
if TYPE_CHECKING:
from . import PreTrainedTokenizerBase
logger = logging.get_logger(__name__)
if "TF_USE_LEGACY_KERAS" not in os.environ:
os.environ["TF_USE_LEGACY_KERAS"] = "1" # Compatibility fix to make sure tf.keras stays at Keras 2
elif os.environ["TF_USE_LEGACY_KERAS"] != "1":
logger.warning(
"Transformers is only compatible with Keras 2, but you have explicitly set `TF_USE_LEGACY_KERAS` to `0`. "
"This may result in unexpected behaviour or errors if Keras 3 objects are passed to Transformers models."
)
try:
import tf_keras as keras
from tf_keras import backend as K
except (ModuleNotFoundError, ImportError):
import keras
from keras import backend as K
if parse(keras.__version__).major > 2:
raise ValueError(
"Your currently installed version of Keras is Keras 3, but this is not yet supported in "
"Transformers. Please install the backwards-compatible tf-keras package with "
"`pip install tf-keras`."
)
tf_logger = tf.get_logger()
TFModelInputType = Union[
List[tf.Tensor],
List[np.ndarray],
Dict[str, tf.Tensor],
Dict[str, np.ndarray],
tf.Tensor,
np.ndarray,
]
def dummy_loss(y_true, y_pred):
if y_pred.shape.rank <= 1:
return y_pred
else:
reduction_axes = list(range(1, y_pred.shape.rank))
return tf.reduce_mean(y_pred, axis=reduction_axes)
class TFModelUtilsMixin:
"""
A few utilities for `keras.Model`, to be used as a mixin.
"""
def num_parameters(self, only_trainable: bool = False) -> int:
"""
Get the number of (optionally, trainable) parameters in the model.
Args:
only_trainable (`bool`, *optional*, defaults to `False`):
Whether or not to return only the number of trainable parameters
Returns:
`int`: The number of parameters.
"""
if only_trainable:
return int(sum(np.prod(w.shape.as_list()) for w in self.trainable_variables))
else:
return self.count_params()
def keras_serializable(cls):
"""
Decorate a Keras Layer class to support Keras serialization.
This is done by:
1. Adding a `transformers_config` dict to the Keras config dictionary in `get_config` (called by Keras at
serialization time.
2. Wrapping `__init__` to accept that `transformers_config` dict (passed by Keras at deserialization time) and
convert it to a config object for the actual layer initializer.
3. Registering the class as a custom object in Keras (if the Tensorflow version supports this), so that it does not
need to be supplied in `custom_objects` in the call to `keras.models.load_model`.
Args:
cls (a `keras.layers.Layers subclass`):
Typically a `TF.MainLayer` class in this project, in general must accept a `config` argument to its
initializer.
Returns:
The same class object, with modifications for Keras deserialization.
"""
initializer = cls.__init__
config_class = getattr(cls, "config_class", None)
if config_class is None:
raise AttributeError("Must set `config_class` to use @keras_serializable")
@functools.wraps(initializer)
def wrapped_init(self, *args, **kwargs):
config = args[0] if args and isinstance(args[0], PretrainedConfig) else kwargs.pop("config", None)
if isinstance(config, dict):
config = config_class.from_dict(config)
initializer(self, config, *args, **kwargs)
elif isinstance(config, PretrainedConfig):
if len(args) > 0:
initializer(self, *args, **kwargs)
else:
initializer(self, config, *args, **kwargs)
else:
raise ValueError("Must pass either `config` (PretrainedConfig) or `config` (dict)")
self._config = config
self._kwargs = kwargs
cls.__init__ = wrapped_init
if not hasattr(cls, "get_config"):
raise TypeError("Only use @keras_serializable on keras.layers.Layer subclasses")
if hasattr(cls.get_config, "_is_default"):
def get_config(self):
cfg = super(cls, self).get_config()
cfg["config"] = self._config.to_dict()
cfg.update(self._kwargs)
return cfg
cls.get_config = get_config
cls._keras_serializable = True
if hasattr(keras.utils, "register_keras_serializable"):
cls = keras.utils.register_keras_serializable()(cls)
return cls
class TFCausalLanguageModelingLoss:
"""
Loss function suitable for causal language modeling (CLM), that is, the task of guessing the next token.
<Tip>
Any label of -100 will be ignored (along with the corresponding logits) in the loss computation.
</Tip>
"""
def hf_compute_loss(self, labels, logits):
loss_fn = keras.losses.SparseCategoricalCrossentropy(from_logits=True, reduction=keras.losses.Reduction.NONE)
if self.config.tf_legacy_loss:
# make sure only labels that are not equal to -100 affect the loss
active_loss = tf.not_equal(tf.reshape(labels, (-1,)), -100)
reduced_logits = tf.boolean_mask(tf.reshape(logits, (-1, shape_list(logits)[2])), active_loss)
labels = tf.boolean_mask(tf.reshape(labels, (-1,)), active_loss)
return loss_fn(labels, reduced_logits)
# Clip negative labels to zero here to avoid NaNs and errors - those positions will get masked later anyway
unmasked_loss = loss_fn(tf.nn.relu(labels), logits)
# make sure only labels that are not equal to -100 affect the loss
loss_mask = tf.cast(labels != -100, dtype=unmasked_loss.dtype)
masked_loss = unmasked_loss * loss_mask
reduced_masked_loss = tf.reduce_sum(masked_loss) / tf.reduce_sum(loss_mask)
return tf.reshape(reduced_masked_loss, (1,))
class TFQuestionAnsweringLoss:
"""
Loss function suitable for question answering.
"""
def hf_compute_loss(self, labels, logits):
loss_fn = keras.losses.SparseCategoricalCrossentropy(from_logits=True, reduction=keras.losses.Reduction.NONE)
start_loss = loss_fn(labels["start_position"], logits[0])
end_loss = loss_fn(labels["end_position"], logits[1])
return (start_loss + end_loss) / 2.0
class TFTokenClassificationLoss:
"""
Loss function suitable for token classification.
<Tip>
Any label of -100 will be ignored (along with the corresponding logits) in the loss computation.
</Tip>
"""
def hf_compute_loss(self, labels, logits):
loss_fn = keras.losses.SparseCategoricalCrossentropy(from_logits=True, reduction=keras.losses.Reduction.NONE)
if tf.executing_eagerly(): # Data-dependent conditionals are forbidden in XLA
if tf.math.reduce_any(labels == -1):
tf.print("Using `-1` to mask the loss for the token is deprecated. Please use `-100` instead.")
if self.config.tf_legacy_loss:
# make sure only labels that are not equal to -100
# are taken into account as loss
if tf.math.reduce_any(labels == -1):
tf.print("Using `-1` to mask the loss for the token is deprecated. Please use `-100` instead.")
active_loss = tf.reshape(labels, (-1,)) != -1
else:
active_loss = tf.reshape(labels, (-1,)) != -100
reduced_logits = tf.boolean_mask(tf.reshape(logits, (-1, shape_list(logits)[2])), active_loss)
labels = tf.boolean_mask(tf.reshape(labels, (-1,)), active_loss)
return loss_fn(labels, reduced_logits)
# Clip negative labels to zero here to avoid NaNs and errors - those positions will get masked later anyway
unmasked_loss = loss_fn(tf.nn.relu(labels), logits)
# make sure only labels that are not equal to -100 or -1
# are taken into account as loss
loss_mask = tf.cast(labels >= 0, dtype=unmasked_loss.dtype)
# Avoid possible division by zero later
# Masked positions will have a loss of NaN because -100 and -1 are not valid labels
masked_loss = unmasked_loss * loss_mask
reduced_masked_loss = tf.reduce_sum(masked_loss) / tf.reduce_sum(loss_mask)
return tf.reshape(reduced_masked_loss, (1,))
class TFSequenceClassificationLoss:
"""
Loss function suitable for sequence classification.
"""
def hf_compute_loss(self, labels, logits):
if logits.shape.rank == 1 or logits.shape[1] == 1:
loss_fn = keras.losses.MeanSquaredError(reduction=keras.losses.Reduction.NONE)
if labels.shape.rank == 1:
# MeanSquaredError returns a scalar loss if the labels are 1D, so avoid that
labels = tf.expand_dims(labels, axis=-1)
else:
loss_fn = keras.losses.SparseCategoricalCrossentropy(
from_logits=True, reduction=keras.losses.Reduction.NONE
)
return loss_fn(labels, logits)
class TFMultipleChoiceLoss:
"""Loss function suitable for multiple choice tasks."""
def hf_compute_loss(self, labels, logits):
loss_fn = keras.losses.SparseCategoricalCrossentropy(from_logits=True, reduction=keras.losses.Reduction.NONE)
return loss_fn(labels, logits)
class TFMaskedLanguageModelingLoss(TFCausalLanguageModelingLoss):
"""
Loss function suitable for masked language modeling (MLM), that is, the task of guessing the masked tokens.
<Tip>
Any label of -100 will be ignored (along with the corresponding logits) in the loss computation.
</Tip>
"""
class TFNextSentencePredictionLoss:
"""
Loss function suitable for next sentence prediction (NSP), that is, the task of guessing the next sentence.
<Tip>
Any label of -100 will be ignored (along with the corresponding logits) in the loss computation.
</Tip>
"""
def hf_compute_loss(self, labels, logits):
loss_fn = keras.losses.SparseCategoricalCrossentropy(from_logits=True, reduction=keras.losses.Reduction.NONE)
if self.config.tf_legacy_loss:
# make sure only labels that are not equal to -100
# are taken into account as loss
next_sentence_active_loss = tf.not_equal(tf.reshape(labels, (-1,)), -100)
next_sentence_reduced_logits = tf.boolean_mask(tf.reshape(logits, (-1, 2)), next_sentence_active_loss)
next_sentence_label = tf.boolean_mask(tf.reshape(labels, (-1,)), next_sentence_active_loss)
return loss_fn(next_sentence_label, next_sentence_reduced_logits)
# make sure only labels that are not equal to -100
# are taken into account as loss
# Clip negative labels to zero here to avoid NaNs and errors - those positions will get masked later anyway
unmasked_ns_loss = loss_fn(y_true=tf.nn.relu(labels), y_pred=logits)
ns_loss_mask = tf.cast(labels != -100, dtype=unmasked_ns_loss.dtype)
# Just zero out samples where label is -100, no reduction
masked_ns_loss = unmasked_ns_loss * ns_loss_mask
return masked_ns_loss
def booleans_processing(config, **kwargs):
"""
Process the input booleans of each model.
Args:
config ([`PretrainedConfig`]):
The config of the running model.
**kwargs:
The boolean parameters
Returns:
A dictionary with the proper values for each boolean
"""
final_booleans = {}
# Pure conv models (such as ConvNext) do not have `output_attentions`. If the signature has
# `output_attentions`, it will be present here in `kwargs`, even if unset (in that case, as `None`)
if "output_attentions" in kwargs:
final_booleans["output_attentions"] = (
kwargs["output_attentions"] if kwargs["output_attentions"] is not None else config.output_attentions
)
final_booleans["output_hidden_states"] = (
kwargs["output_hidden_states"] if kwargs["output_hidden_states"] is not None else config.output_hidden_states
)
final_booleans["return_dict"] = kwargs["return_dict"] if kwargs["return_dict"] is not None else config.return_dict
if "use_cache" in kwargs:
final_booleans["use_cache"] = (
kwargs["use_cache"] if kwargs["use_cache"] is not None else getattr(config, "use_cache", None)
)
return final_booleans
def unpack_inputs(func):
"""
Decorator that processes the inputs to a Keras layer, passing them to the layer as keyword arguments. This enables
downstream use of the inputs by their variable name, even if they arrive packed as a dictionary in the first input
(common case in Keras).
Args:
func (`callable`):
The callable function of the TensorFlow model.
Returns:
A callable that wraps the original `func` with the behavior described above.
"""
original_signature = inspect.signature(func)
@functools.wraps(func)
def run_call_with_unpacked_inputs(self, *args, **kwargs):
# isolates the actual `**kwargs` for the decorated function
kwargs_call = {key: val for key, val in kwargs.items() if key not in dict(original_signature.parameters)}
fn_args_and_kwargs = {key: val for key, val in kwargs.items() if key not in kwargs_call}
fn_args_and_kwargs.update({"kwargs_call": kwargs_call})
# move any arg into kwargs, if they exist
fn_args_and_kwargs.update(dict(zip(func.__code__.co_varnames[1:], args)))
# Encoder Decoder models delegate the application of the configuration options to their inner models.
if "EncoderDecoder" in self.__class__.__name__:
config = None
else:
config = self.config
unpacked_inputs = input_processing(func, config, **fn_args_and_kwargs)
return func(self, **unpacked_inputs)
# Keras enforces the first layer argument to be passed, and checks it through `inspect.getfullargspec()`. This
# function does not follow wrapper chains (i.e. ignores `functools.wraps()`), meaning that without the line below
# Keras would attempt to check the first argument against the literal signature of the wrapper.
run_call_with_unpacked_inputs.__signature__ = original_signature
return run_call_with_unpacked_inputs
def input_processing(func, config, **kwargs):
"""
Process the input of each TensorFlow model including the booleans. In case of a list of symbolic inputs, each input
has to be named accordingly to the parameters name, i.e. `input_ids = keras.Input(shape=(128,), dtype='int32',
name="input_ids")` otherwise the order of the tensors will not be guaranteed during the training.
Args:
func (`callable`):
The callable function of the TensorFlow model.
config ([`PretrainedConfig`]):
The config of the running model.
**kwargs:
The inputs of the model.
Returns:
Two lists, one for the missing layers, and another one for the unexpected layers.
"""
signature = dict(inspect.signature(func).parameters)
has_kwargs = bool(signature.pop("kwargs", None))
signature.pop("self", None)
parameter_names = list(signature.keys())
main_input_name = parameter_names[0]
main_input = kwargs.pop(main_input_name, None)
output = {}
allowed_types = (tf.Tensor, bool, int, ModelOutput, tuple, list, dict, np.ndarray)
if "inputs" in kwargs["kwargs_call"]:
warnings.warn(
"The `inputs` argument is deprecated and will be removed in a future version, use `input_ids` instead.",
FutureWarning,
)
output["input_ids"] = kwargs["kwargs_call"].pop("inputs")
if "decoder_cached_states" in kwargs["kwargs_call"]:
warnings.warn(
"The `decoder_cached_states` argument is deprecated and will be removed in a future version, use"
" `past_key_values` instead.",
FutureWarning,
)
output["past_key_values"] = kwargs["kwargs_call"].pop("decoder_cached_states")
if "past" in kwargs["kwargs_call"] and "past_key_values" in parameter_names:
warnings.warn(
"The `past` argument is deprecated and will be removed in a future version, use `past_key_values`"
" instead.",
FutureWarning,
)
kwargs["past_key_values"] = kwargs["kwargs_call"].pop("past")
elif "past_key_values" in kwargs["kwargs_call"] and "past" in parameter_names:
kwargs["past"] = kwargs["kwargs_call"].pop("past_key_values")
if has_kwargs:
output["kwargs"] = kwargs.pop("kwargs_call", {})
else:
if len(kwargs["kwargs_call"]) > 0:
raise ValueError(
"The following keyword arguments are not supported by this model:"
f" {list(kwargs['kwargs_call'].keys())}."
)
kwargs.pop("kwargs_call")
for k, v in kwargs.items():
if isinstance(v, allowed_types) or tf.is_tensor(v) or v is None:
output[k] = v
else:
raise ValueError(f"Data of type {type(v)} is not allowed only {allowed_types} is accepted for {k}.")
if isinstance(main_input, (tuple, list)):
for i, input in enumerate(main_input):
# EagerTensors don't allow to use the .name property so we check for a real Tensor
if is_tf_symbolic_tensor(input):
# Tensor names have always the pattern `name:id` then we check only the
# `name` part
tensor_name = input.name.split(":")[0]
if tensor_name in parameter_names:
output[tensor_name] = input
else:
output[parameter_names[i]] = input
elif isinstance(input, allowed_types) or input is None:
output[parameter_names[i]] = input
else:
raise ValueError(
f"Data of type {type(input)} is not allowed only {allowed_types} is accepted for"
f" {parameter_names[i]}."
)
elif isinstance(main_input, Mapping):
if "inputs" in main_input:
warnings.warn(
"The `inputs` argument is deprecated and will be removed in a future version, use `input_ids`"
" instead.",
FutureWarning,
)
output["input_ids"] = main_input.pop("inputs")
if "decoder_cached_states" in main_input:
warnings.warn(
"The `decoder_cached_states` argument is deprecated and will be removed in a future version, use"
" `past_key_values` instead.",
FutureWarning,
)
output["past_key_values"] = main_input.pop("decoder_cached_states")
for k, v in dict(main_input).items():
if isinstance(v, allowed_types) or v is None:
output[k] = v
elif k not in parameter_names and "args" not in parameter_names:
logger.warning(
f"The parameter {k} does not belongs to the parameter list {parameter_names} and will be ignored."
)
continue
else:
raise ValueError(f"Data of type {type(v)} is not allowed only {allowed_types} is accepted for {k}.")
else:
if tf.is_tensor(main_input) or main_input is None:
output[main_input_name] = main_input
else:
raise ValueError(
f"Data of type {type(main_input)} is not allowed only {allowed_types} is accepted for"
f" {main_input_name}."
)
# Populates any unspecified argument with their default value, according to the signature.
for name in parameter_names:
if name not in list(output.keys()) and name != "args":
output[name] = kwargs.pop(name, signature[name].default)
# When creating a SavedModel TF calls the method with LayerCall.__call__(args, **kwargs)
# So to respect the proper output we have to add this exception
if "args" in output:
if output["args"] is not None and is_tf_symbolic_tensor(output["args"]):
tensor_name = output["args"].name.split(":")[0]
output[tensor_name] = output["args"]
else:
# `args` in this case is always the first parameter, then `input_ids`
output["input_ids"] = output["args"]
del output["args"]
if "kwargs" in output:
del output["kwargs"]
cast_output = {}
for key, val in output.items():
if isinstance(val, tf.Tensor) and val.dtype == tf.int64:
cast_output[key] = tf.cast(val, tf.int32)
elif isinstance(val, np.ndarray) and val.dtype == np.int64:
cast_output[key] = val.astype(np.int32)
else:
cast_output[key] = val
output = cast_output
del cast_output
if config is not None:
boolean_dict = {
k: v
for k, v in output.items()
if k in ["return_dict", "output_attentions", "output_hidden_states", "use_cache"]
}
output.update(
booleans_processing(
config=config,
**boolean_dict,
)
)
return output
def dtype_byte_size(dtype):
"""
Returns the size (in bytes) occupied by one parameter of type `dtype`.
Example:
```py
>>> dtype_byte_size(tf.float32)
4
```
"""
if dtype == tf.bool:
return 1 / 8
bit_search = re.search(r"[^\d](\d+)$", dtype.name)
if bit_search is None:
raise ValueError(f"`dtype` is not a valid dtype: {dtype}.")
bit_size = int(bit_search.groups()[0])
return bit_size // 8
def strip_model_name_and_prefix(name, _prefix=None):
if _prefix is not None and name.startswith(_prefix):
name = name[len(_prefix) :]
if name.startswith("/"):
name = name[1:]
if "model." not in name and len(name.split("/")) > 1:
name = "/".join(name.split("/")[1:])
return name
def tf_shard_checkpoint(weights, max_shard_size="10GB", weights_name: str = TF2_WEIGHTS_NAME):
"""
Splits a model state dictionary in sub-checkpoints so that the final size of each sub-checkpoint does not exceed a
given size.
The sub-checkpoints are determined by iterating through the `state_dict` in the order of its keys, so there is no
optimization made to make each sub-checkpoint as close as possible to the maximum size passed. For example, if the
limit is 10GB and we have weights of sizes [6GB, 6GB, 2GB, 6GB, 2GB, 2GB] they will get sharded as [6GB], [6+2GB],
[6+2+2GB] and not [6+2+2GB], [6+2GB], [6GB].
<Tip warning={true}>
If one of the model's weight is bigger that `max_shard_size`, it will end up in its own sub-checkpoint which will
have a size greater than `max_shard_size`.
</Tip>
Args:
weights (`Dict[str, tf.RessourceVariable]`): The list of tf.RessourceVariable of a model to save.
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
The maximum size of each sub-checkpoint. If expressed as a string, needs to be digits followed by a unit
(like `"5MB"`).
"""
max_shard_size = convert_file_size_to_int(max_shard_size)
sharded_state_dicts = []
current_block = []
current_block_size = 0
total_size = 0
for item in weights:
weight_size = item.numpy().size * dtype_byte_size(item.dtype)
# If this weight is going to tip up over the maximal size, we split.
if current_block_size + weight_size > max_shard_size:
sharded_state_dicts.append(current_block)
current_block = []
current_block_size = 0
current_block.append(item)
current_block_size += weight_size
total_size += weight_size
# Add the last block
sharded_state_dicts.append(current_block)
# If we only have one shard, we return it
if len(sharded_state_dicts) == 1:
return {weights_name: sharded_state_dicts[0]}, None
# Otherwise, let's build the index
weight_map = {}
shards = {}
for idx, shard in enumerate(sharded_state_dicts):
shard_file = weights_name.replace(".h5", f"-{idx+1:05d}-of-{len(sharded_state_dicts):05d}.h5")
shard_file = shard_file.replace(
".safetensors", f"-{idx + 1:05d}-of-{len(sharded_state_dicts):05d}.safetensors"
)
shards[shard_file] = shard
for weight in shard:
weight_name = weight.name
weight_map[weight_name] = shard_file
# Add the metadata
metadata = {"total_size": total_size}
index = {"metadata": metadata, "weight_map": weight_map}
return shards, index
def load_tf_sharded_weights(model, shard_files, ignore_mismatched_sizes=False, strict=False, _prefix=None):
"""
This is the same as `load_tf_weights` but for a sharded checkpoint. Detect missing and unexpected layers and load
the TF weights from the shard file accordingly to their names and shapes.
This load is performed efficiently: each checkpoint shard is loaded one by one in RAM and deleted after being
loaded in the model.
Args:
model (`keras.models.Model`): The model in which to load the checkpoint.
shard_files (`str` or `os.PathLike`): A list containing the sharded checkpoint names.
ignore_mismatched_sizes`bool`, *optional`, defaults to `True`):
Whether or not to ignore the mismatch between the sizes
strict (`bool`, *optional*, defaults to `True`):
Whether to strictly enforce that the keys in the model state dict match the keys in the sharded checkpoint.
Returns:
Three lists, one for the missing layers, another one for the unexpected layers, and a last one for the
mismatched layers.
"""
# Load the index
unexpected_keys = set()
saved_keys = set()
mismatched_keys = set()
# Since TF adds the name of the class to its weights, and uses the index and not the name of the layer to load
# the weight, we have to get rid of the first prefix of the name of the layer.
model_keys = set()
model_layer_map = {}
for i, k in enumerate(model.weights):
layer_name = k.name
if _prefix is not None and layer_name.startswith(_prefix):
layer_name = layer_name[len(_prefix) :]
layer_name = layer_name.lstrip("/")
if not ("model." in layer_name or len(layer_name.split("/")) == 1):
layer_name = "/".join(layer_name.split("/")[1:])
model_keys.add(layer_name)
model_layer_map[layer_name] = i
for shard_file in shard_files:
saved_weight_names_set, unexpected_keys_set, mismatched_keys_set = load_tf_shard(
model,
model_layer_map,
shard_file,
ignore_mismatched_sizes=ignore_mismatched_sizes,
_prefix=_prefix,
)
saved_keys.update(saved_weight_names_set)
unexpected_keys.update(unexpected_keys_set)
mismatched_keys.update(mismatched_keys_set)
gc.collect()
missing_keys = model_keys - saved_keys
if strict and (len(missing_keys) > 0 or len(unexpected_keys) > 0):
error_message = f"Error(s) in loading state_dict for {model.__class__.__name__}"
if len(missing_keys) > 0:
str_missing_keys = ",".join([f'"{k}"' for k in missing_keys])
error_message += f"\nMissing key(s): {str_missing_keys}."
if len(unexpected_keys) > 0:
str_unexpected_keys = ",".join([f'"{k}"' for k in unexpected_keys])
error_message += f"\nMissing key(s): {str_unexpected_keys}."
raise RuntimeError(error_message)
return missing_keys, unexpected_keys, mismatched_keys
def load_tf_shard(model, model_layer_map, resolved_archive_file, ignore_mismatched_sizes=False, _prefix=None):
"""
Loads a shard from a sharded checkpoint file. Can be either H5 or Safetensors.
Handles missing keys and unexpected keys.
Args:
model (`keras.models.Model`): Model in which the weights are loaded
model_layer_map (`Dict`): A dictionary mapping the layer name to the index of the layer in the model.
resolved_archive_file (`str`): Path to the checkpoint file from which the weights will be loaded
ignore_mismatched_sizes (`bool`, *optional*, defaults to `False`): Whether to ignore the mismatched keys
Returns:
`keras.models.Model`: Three lists, one for the layers that were found and succesfully restored (from the
shard file), one for the mismatched layers, and another one for the unexpected layers.
"""
saved_weight_names_set = set()
saved_weights = {}
mismatched_keys = set()
unexpected_keys = set()
# Read the H5 file
try:
with h5py.File(resolved_archive_file, "r") as sharded_checkpoint_file:
# Retrieve the name of each layer from the H5 file
saved_h5_model_layers_name = set(load_attributes_from_hdf5_group(sharded_checkpoint_file, "layer_names"))
weight_value_tuples = []
# Compute missing and unexpected sub layers
# Store the weights in list of tuples that looks like [(weight_object, value_of_weight),...]
for layer_name in saved_h5_model_layers_name:
h5_layer_object = sharded_checkpoint_file[layer_name]
saved_weights[layer_name] = np.asarray(h5_layer_object)
saved_weight_names_set.add(layer_name)
if layer_name not in model_layer_map:
unexpected_keys.add(layer_name)
else:
symbolic_weight = model.weights[model_layer_map[layer_name]]
saved_weight_value = saved_weights[layer_name]
# If the current weight is found
if saved_weight_value is not None:
# Check if the shape of the current weight and the one from the H5 file are different
if K.int_shape(symbolic_weight) != saved_weight_value.shape:
# If yes we reshape the weight from the H5 file accordingly to the current weight
# If the two shapes are not compatible we raise an issue
try:
array = np.reshape(saved_weight_value, K.int_shape(symbolic_weight))
except ValueError as e:
if ignore_mismatched_sizes:
mismatched_keys.add(
(layer_name, saved_weight_value.shape, K.int_shape(symbolic_weight))
)
continue
else:
raise e
else:
array = saved_weight_value
# We create the tuple that will be loaded and add it to the final list
weight_value_tuples.append((symbolic_weight, array))
K.batch_set_value(weight_value_tuples)
return saved_weight_names_set, unexpected_keys, mismatched_keys
except Exception as e:
try:
with open(resolved_archive_file) as f:
if f.read().startswith("version"):
raise OSError(
"You seem to have cloned a repository without having git-lfs installed. Please install "
"git-lfs and run `git lfs install` followed by `git lfs pull` in the folder "
"you cloned."
)
else:
raise ValueError(
f"Unable to locate the file {resolved_archive_file} which is necessary to load this pretrained"
" model. Make sure you have saved the model properly."
) from e
except (UnicodeDecodeError, ValueError):
raise OSError(
f"Unable to load weights from TF checkpoint file for '{resolved_archive_file}' "
f"at '{resolved_archive_file}'. "
"If you tried to load a TF model from a sharded checkpoint, you should try converting the model "
"by loading it in pytorch and saving it localy. A convertion script should be realeased soon."
)
def load_tf_sharded_weights_from_safetensors(
model, shard_files, ignore_mismatched_sizes=False, strict=False, _prefix=None
):
"""
This is the same as `load_tf_weights_from_safetensors` but for a sharded TF-format safetensors checkpoint.
Detect missing and unexpected layers and load the TF weights from the shard file accordingly to their names and
shapes.
This load is performed efficiently: each checkpoint shard is loaded one by one in RAM and deleted after being
loaded in the model.
Args:
model (`keras.models.Model`): The model in which to load the checkpoint.
shard_files (`str` or `os.PathLike`): A list containing the sharded checkpoint names.
ignore_mismatched_sizes`bool`, *optional`, defaults to `True`):
Whether or not to ignore the mismatch between the sizes
strict (`bool`, *optional*, defaults to `True`):
Whether to strictly enforce that the keys in the model state dict match the keys in the sharded checkpoint.
Returns:
Three lists, one for the missing layers, another one for the unexpected layers, and a last one for the
mismatched layers.
"""
# Load the index
unexpected_keys = set()
all_missing_keys = []
mismatched_keys = set()
for shard_file in shard_files:
missing_layers, unexpected_layers, mismatched_layers = load_tf_weights_from_safetensors(
model,
shard_file,
ignore_mismatched_sizes=ignore_mismatched_sizes,
_prefix=_prefix,
)
all_missing_keys.append(set(missing_layers))
unexpected_keys.update(unexpected_layers)
mismatched_keys.update(mismatched_layers)
gc.collect()
missing_keys = set.intersection(*all_missing_keys)
if strict and (len(missing_keys) > 0 or len(unexpected_keys) > 0):
error_message = f"Error(s) in loading state_dict for {model.__class__.__name__}"
if len(missing_keys) > 0:
str_missing_keys = ",".join([f'"{k}"' for k in missing_keys])
error_message += f"\nMissing key(s): {str_missing_keys}."
if len(unexpected_keys) > 0:
str_unexpected_keys = ",".join([f'"{k}"' for k in unexpected_keys])
error_message += f"\nMissing key(s): {str_unexpected_keys}."
raise RuntimeError(error_message)
return missing_keys, unexpected_keys, mismatched_keys
def load_tf_weights(model, resolved_archive_file, ignore_mismatched_sizes=False, _prefix=None):
"""
Detect missing and unexpected layers and load the TF weights from the shard file accordingly to their names and
shapes.
Args:
model (`keras.models.Model`):
The model to load the weights into.
resolved_archive_file (`str`):
The location of the H5 file.
ignore_mismatched_sizes (`bool`, *optional*, defaults to `False`):
Whether or not to ignore weights with shapes that don't match between the checkpoint of the model.
Returns:
Three lists, one for the missing layers, another one for the unexpected layers, and a last one for the
mismatched layers.
"""
if resolved_archive_file.endswith(".safetensors"):
load_function = load_tf_weights_from_safetensors
else:
load_function = load_tf_weights_from_h5
return load_function(
model, resolved_archive_file, ignore_mismatched_sizes=ignore_mismatched_sizes, _prefix=_prefix
)
def load_tf_weights_from_h5(model, resolved_archive_file, ignore_mismatched_sizes=False, _prefix=None):
mismatched_layers = []
# Read the H5 file
with h5py.File(resolved_archive_file, "r") as sharded_checkpoint_file:
# Retrieve the name of each layer from the H5 file
saved_h5_model_layers_name = set(load_attributes_from_hdf5_group(sharded_checkpoint_file, "layer_names"))
# Find the missing layers from the high level list of layers
missing_layers = list({layer.name for layer in model.layers} - saved_h5_model_layers_name)
# Find the unexpected layers from the high level list of layers
unexpected_layers = list(saved_h5_model_layers_name - {layer.name for layer in model.layers})
saved_weight_names_set = set()
symbolic_weights_names = set()
weight_value_tuples = []
# Compute missing and unexpected sub layers
# Store the weights in list of tuples that looks like [(weight_object, value_of_weight),...]
for layer in model.layers:
# if layer_name from the H5 file belongs to the layers from the instantiated model
if layer.name in saved_h5_model_layers_name:
# Get the H5 layer object from its name
h5_layer_object = sharded_checkpoint_file[layer.name]
# Get all the weights as a list from the layer object
symbolic_weights = layer.trainable_weights + layer.non_trainable_weights
saved_weights = {}
# Create a dict from the H5 saved model that looks like {"weight_name": weight_value}
# And a set with only the names
for weight_name in load_attributes_from_hdf5_group(h5_layer_object, "weight_names"):
# TF names always start with the model name so we ignore it
name = "/".join(weight_name.split("/")[1:])
if _prefix is not None:
name = _prefix + "/" + name
saved_weights[name] = np.asarray(h5_layer_object[weight_name])
# Add the updated name to the final list for computing missing/unexpected values
saved_weight_names_set.add(name)
# Loop over each weights from the instantiated model and compare with the weights from the H5 file
for symbolic_weight in symbolic_weights:
# TF names always start with the model name so we ignore it
if _prefix is not None:
delimeter = len(_prefix.split("/"))
symbolic_weight_name = "/".join(
symbolic_weight.name.split("/")[:delimeter]
+ symbolic_weight.name.split("/")[delimeter + 1 :]
)
else:
symbolic_weight_name = "/".join(symbolic_weight.name.split("/")[1:])
# here we check if the current weight is among the weights from the H5 file
# If yes, get the weight_value of the corresponding weight from the H5 file
# If not, make the value to None
saved_weight_value = saved_weights.get(symbolic_weight_name, None)
# Retrocompatibility patch: some embeddings are stored with the weights name (e.g. Bart's
# `model.shared/embeddings:0` are stored as `model.shared/weights:0`)
if saved_weight_value is None and symbolic_weight_name.endswith("embeddings:0"):
symbolic_weight_name = symbolic_weight_name[:-12] + "weight:0"
saved_weight_value = saved_weights.get(symbolic_weight_name, None)
# Add the updated name to the final list for computing missing/unexpected values
symbolic_weights_names.add(symbolic_weight_name)
# If the current weight is found
if saved_weight_value is not None:
# Check if the shape of the current weight and the one from the H5 file are different
if K.int_shape(symbolic_weight) != saved_weight_value.shape:
# If yes we reshape the weight from the H5 file accordingly to the current weight
# If the two shapes are not compatible we raise an issue
try:
array = np.reshape(saved_weight_value, K.int_shape(symbolic_weight))
except ValueError as e:
if ignore_mismatched_sizes:
mismatched_layers.append(
(symbolic_weight_name, saved_weight_value.shape, K.int_shape(symbolic_weight))
)
continue
else:
raise e
else:
array = saved_weight_value
# We create the tuple that will be loaded and add it to the final list
weight_value_tuples.append((symbolic_weight, array))
# Load all the weights
K.batch_set_value(weight_value_tuples)
# Compute the missing and unexpected layers
missing_layers.extend(list(symbolic_weights_names - saved_weight_names_set))
unexpected_layers.extend(list(saved_weight_names_set - symbolic_weights_names))
return missing_layers, unexpected_layers, mismatched_layers
def load_tf_weights_from_safetensors(model, resolved_archive_file, ignore_mismatched_sizes=False, _prefix=None):
# Read the safetensors file
with safe_open(resolved_archive_file, framework="tf") as safetensors_archive:
mismatched_layers = []
weight_names = [strip_model_name_and_prefix(w.name, _prefix=_prefix) for w in model.weights]
loaded_weight_names = list(safetensors_archive.keys())
# Find the missing layers from the high level list of layers
missing_layers = list(set(weight_names) - set(loaded_weight_names))
# Find the unexpected layers from the high level list of layers
unexpected_layers = list(set(loaded_weight_names) - set(weight_names))
for weight in model.weights:
weight_name = strip_model_name_and_prefix(weight.name, _prefix=_prefix)
if weight_name in loaded_weight_names:
weight_value = safetensors_archive.get_tensor(weight_name)
# Check if the shape of the current weight and the one from the H5 file are different
if K.int_shape(weight) != weight_value.shape:
# If yes we reshape the weight from the H5 file accordingly to the current weight
# If the two shapes are not compatible we raise an issue
try:
weight_value = tf.reshape(weight_value, K.int_shape(weight))
except (ValueError, tf.errors.InvalidArgumentError) as e:
if ignore_mismatched_sizes:
mismatched_layers.append((weight_name, weight_value.shape, K.int_shape(weight)))
continue
else:
raise e
K.set_value(weight, weight_value) # weight.assign() might break if weight is a DTensor
return missing_layers, unexpected_layers, mismatched_layers
def init_copy_embeddings(old_embeddings, new_num_tokens):
r"""
This function aims to reduce the embeddings in case new_num_tokens < old_num_tokens or to pad with -1 in case
new_num_tokens > old_num_tokens. A mask is also computed in order to know which weight in the embeddings should be
kept or not. Example:
- if new_num_tokens=5 and old_num_tokens=4 and old_embeddings=[w1,w2,w3,w4]
- mask=[True,True,True,True,False] and current_weights=[w1,w2,w3,w4,-1]
- if new_num_tokens=4 and old_num_tokens=5 and old_embeddings=[w1,w2,w3,w4,w5]
- mask=[True,True,True,True] and current_weights=[w1,w2,w3,w4]
"""
old_num_tokens, old_embedding_dim = shape_list(old_embeddings)
size_diff = new_num_tokens - old_num_tokens
# initialize new embeddings
# Copy token embeddings from the previous ones
if tf.math.greater(size_diff, 0):
# if the new size is greater than the old one, we extend the current embeddings with a padding until getting new size
# and we create a mask to properly identify the padded values and be replaced by the values of the newly created
# embeddings
current_weights = tf.pad(
old_embeddings.value(), tf.convert_to_tensor([[0, size_diff], [0, 0]]), constant_values=-1
)
num_tokens_to_copy = min(old_num_tokens, new_num_tokens)
mask = tf.fill(tf.convert_to_tensor([num_tokens_to_copy, 1]), True)
mask = tf.pad(mask, tf.convert_to_tensor([[0, size_diff], [0, 0]]), constant_values=False)
else:
# if the new size if lower than the old one, we take the current embeddings until the new size
current_weights = tf.slice(
old_embeddings.value(),
tf.convert_to_tensor([0, 0]),
tf.convert_to_tensor([new_num_tokens, old_embedding_dim]),
)
mask = tf.fill(tf.convert_to_tensor([new_num_tokens, 1]), True)
return mask, current_weights
class TFPreTrainedModel(keras.Model, TFModelUtilsMixin, TFGenerationMixin, PushToHubMixin):
r"""
Base class for all TF models.
[`TFPreTrainedModel`] takes care of storing the configuration of the models and handles methods for loading,
downloading and saving models as well as a few methods common to all models to:
- resize the input embeddings,
- prune heads in the self-attention heads.
Class attributes (overridden by derived classes):
- **config_class** ([`PretrainedConfig`]) -- A subclass of [`PretrainedConfig`] to use as configuration class
for this model architecture.
- **base_model_prefix** (`str`) -- A string indicating the attribute associated to the base model in derived
classes of the same architecture adding modules on top of the base model.
- **main_input_name** (`str`) -- The name of the principal input to the model (often `input_ids` for NLP
models, `pixel_values` for vision models and `input_values` for speech models).
"""
config_class = None
base_model_prefix = ""
main_input_name = "input_ids"
_auto_class = None
_using_dummy_loss = None
_label_to_output_map = None
# a list of re pattern of tensor names to ignore from the model when loading the model weights
# (and avoid unnecessary warnings).
_keys_to_ignore_on_load_missing = None
# a list of re pattern of tensor names to ignore from the weights when loading the model weights
# (and avoid unnecessary warnings).
_keys_to_ignore_on_load_unexpected = None
_requires_load_weight_prefix = False
@property
def dummy_inputs(self) -> Dict[str, tf.Tensor]:
"""
Dummy inputs to build the network.
Returns:
`Dict[str, tf.Tensor]`: The dummy inputs.
"""
dummies = {}
for key, spec in self.input_signature.items():
# 2 is the most correct arbitrary size. I will not be taking questions
dummy_shape = [dim if dim is not None else 2 for dim in spec.shape]
if spec.shape[0] is None:
# But let's make the batch size 1 to save memory anyway
dummy_shape[0] = 1
dummies[key] = tf.ones(shape=dummy_shape, dtype=spec.dtype)
if key == "token_type_ids":
# Some models have token_type_ids but with a vocab_size of 1
dummies[key] = tf.zeros_like(dummies[key])
if self.config.add_cross_attention and "encoder_hidden_states" in inspect.signature(self.call).parameters:
if "encoder_hidden_states" not in dummies:
if self.main_input_name == "input_ids":
dummies["encoder_hidden_states"] = tf.ones(
shape=(1, 2, self.config.hidden_size), dtype=tf.float32, name="encoder_hidden_states"
)
else:
raise NotImplementedError(
"Model has cross-attention but we couldn't infer the shape for the encoder hidden states. Please manually override dummy_inputs!"
)
return dummies
def build_in_name_scope(self):
with tf.name_scope(self.name):
self.build(input_shape=None)
@property
def framework(self) -> str:
"""
:str: Identifies that this is a TensorFlow model.
"""
return "tf"
def build(self, input_shape=None):
pass # This is just here to make sure we don't call the superclass build()
def __init__(self, config, *inputs, **kwargs):
super().__init__(*inputs, **kwargs)
if not isinstance(config, PretrainedConfig):
raise ValueError(
f"Parameter config in `{self.__class__.__name__}(config)` should be an instance of class "
"`PretrainedConfig`. To create a model from a pretrained model use "
f"`model = {self.__class__.__name__}.from_pretrained(PRETRAINED_MODEL_NAME)`"
)
# Save config and origin of the pretrained weights if given in model
self.config = config
self.name_or_path = config.name_or_path
self.generation_config = GenerationConfig.from_model_config(config) if self.can_generate() else None
self._set_save_spec(self.input_signature)
def get_config(self):
return self.config.to_dict()
@functools.wraps(keras.Model.fit)
def fit(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().fit(*args, **kwargs)
@functools.wraps(keras.Model.train_on_batch)
def train_on_batch(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().train_on_batch(*args, **kwargs)
@functools.wraps(keras.Model.test_on_batch)
def test_on_batch(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().test_on_batch(*args, **kwargs)
@functools.wraps(keras.Model.predict_on_batch)
def predict_on_batch(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().predict_on_batch(*args, **kwargs)
@functools.wraps(keras.Model.predict)
def predict(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().predict(*args, **kwargs)
@functools.wraps(keras.Model.evaluate)
def evaluate(self, *args, **kwargs):
args, kwargs = convert_batch_encoding(*args, **kwargs)
return super().evaluate(*args, **kwargs)
@classmethod
def from_config(cls, config, **kwargs):
if isinstance(config, PretrainedConfig):
return cls._from_config(config, **kwargs)
return cls._from_config(cls.config_class.from_dict(config, **kwargs))
@classmethod
def _from_config(cls, config, **kwargs):
"""
All context managers that the model should be initialized under go here.
"""
return cls(config, **kwargs)
def get_head_mask(self, head_mask: tf.Tensor | None, num_hidden_layers: int) -> tf.Tensor:
"""
Prepare the head mask if needed.
Args:
head_mask (`tf.Tensor` with shape `[num_heads]` or `[num_hidden_layers x num_heads]`, *optional*):
The mask indicating if we should keep the heads or not (1.0 for keep, 0.0 for discard).
num_hidden_layers (`int`):
The number of hidden layers in the model.
Returns:
`tf.Tensor` with shape `[num_hidden_layers x batch x num_heads x seq_length x seq_length]` or list with
`[None]` for each layer.
"""
if head_mask is not None:
head_mask = self._convert_head_mask_to_5d(head_mask, num_hidden_layers)
else:
head_mask = [None] * num_hidden_layers
return head_mask
def _convert_head_mask_to_5d(self, head_mask, num_hidden_layers):
"""-> [num_hidden_layers x batch x num_heads x seq_length x seq_length]"""
if head_mask.shape.rank == 1:
head_mask = head_mask[None, None, :, None, None]
head_mask = tf.repeat(head_mask, repeats=num_hidden_layers, axis=0)
elif head_mask.shape.rank == 2:
head_mask = head_mask[:, None, :, None, None]
assert head_mask.shape.rank == 5, f"head_mask.dim != 5, instead {head_mask.dim()}"
head_mask = tf.cast(head_mask, tf.float32) # switch to float if need + fp16 compatibility
return head_mask
@tf.function
def serving(self, inputs):
"""
Args:
Method used for serving the model. Does not have a specific signature, but will be specialized as concrete
functions when saving with `save_pretrained`.
inputs (`Dict[str, tf.Tensor]`):
The input of the saved model as a dictionary of tensors.
"""
output = self.call(inputs)
return self.serving_output(output)
@property
def input_signature(self) -> Dict[str, tf.TensorSpec]:
"""
This property should return a dict mapping input names to tf.TensorSpec objects, representing the expected
shape and dtype for model inputs. It is used for both serving and for generating dummy inputs.
"""
model_inputs = list(inspect.signature(self.call).parameters)
sig = {}
if "input_ids" in model_inputs:
if self.__class__.__name__.endswith("ForMultipleChoice"):
text_dims = 3
else:
text_dims = 2
for input_name in (
"input_ids",
"attention_mask",
"token_type_ids",
"decoder_input_ids",
"decoder_attention_mask",
):
if input_name in model_inputs:
sig[input_name] = tf.TensorSpec([None] * text_dims, tf.int32, name=input_name)
if "pixel_values" in model_inputs:
pixel_values_shape = [None, None, None, None]
if hasattr(self.config, "vision_config"):
vision_config = self.config.vision_config
else:
vision_config = self.config
if hasattr(vision_config, "num_channels"):
pixel_values_shape[1] = vision_config.num_channels
else:
raise NotImplementedError(
"Could not infer number of channels from config, please override input_signature to specify input shapes."
)
if hasattr(vision_config, "image_size"):
pixel_values_shape[2] = pixel_values_shape[3] = vision_config.image_size
elif hasattr(vision_config, "input_size"):
pixel_values_shape[2] = pixel_values_shape[3] = vision_config.input_size
else:
raise NotImplementedError(
"Could not infer input image shape from config, please override input_signature to specify input shapes."
)
sig["pixel_values"] = tf.TensorSpec(pixel_values_shape, tf.float32, name="pixel_values")
if "input_features" in model_inputs:
raise NotImplementedError("Audio models need a manually defined input_signature")
return sig
def serving_output(self, output):
"""
Prepare the output of the saved model. Can be overridden if specific serving modifications are required.
"""
if not isinstance(output, ModelOutput):
return output
for key in output:
if key.endswith("hidden_states") and not getattr(self.config, "output_hidden_states", False):
output[key] = None
elif key.endswith("attentions") and not getattr(self.config, "output_attentions", False):
output[key] = None
elif key == "past_key_values" and not getattr(self.config, "use_cache", False):
output[key] = None
elif key == "cross_attentions" and not (
getattr(self.config, "output_attentions", False) and getattr(self.config, "add_cross_attention", False)
):
output[key] = None
if isinstance(output[key], (tuple, list)):
try:
output[key] = tf.convert_to_tensor(output[key])
except (ValueError, tf.errors.InvalidArgumentError):
pass # Layers may not have the same dimensions
return output
@classmethod
def can_generate(cls) -> bool:
"""
Returns whether this model can generate sequences with `.generate()`.
Returns:
`bool`: Whether this model can generate sequences with `.generate()`.
"""
# Detects whether `prepare_inputs_for_generation` has been overwritten, which is a requirement for generation.
# Alternativelly, the model can also have a custom `generate` function.
if "GenerationMixin" in str(cls.prepare_inputs_for_generation) and "GenerationMixin" in str(cls.generate):
return False
return True
def get_input_embeddings(self) -> keras.layers.Layer:
"""
Returns the model's input embeddings layer.
Returns:
`tf.Variable`: The embeddings layer mapping vocabulary to hidden states.
"""
main_layer = getattr(self, self.base_model_prefix, self)
if main_layer is not self:
return main_layer.get_input_embeddings()
else:
raise NotImplementedError
def _save_checkpoint(self, checkpoint_dir, epoch):
if not os.path.isdir(checkpoint_dir):
os.mkdir(checkpoint_dir)
# We avoid tf.train.checkpoint or saving weights in TF format, even though that includes optimizer
# state for us, because it requires special handling for objects like custom losses, which we use
# internally and which users are likely to use too
weights_path = os.path.join(checkpoint_dir, "weights.h5")
self.save_weights(weights_path)
extra_data = {"epoch": epoch, "optimizer_state": self.optimizer.get_weights()}
extra_data_path = os.path.join(checkpoint_dir, "extra_data.pickle")
with open(extra_data_path, "wb") as f:
pickle.dump(extra_data, f)
def prepare_tf_dataset(
self,
dataset: "datasets.Dataset", # noqa:F821
batch_size: int = 8,
shuffle: bool = True,
tokenizer: Optional["PreTrainedTokenizerBase"] = None,
collate_fn: Optional[Callable] = None,
collate_fn_args: Optional[Dict[str, Any]] = None,
drop_remainder: Optional[bool] = None,
prefetch: bool = True,
):
"""
Wraps a HuggingFace [`~datasets.Dataset`] as a `tf.data.Dataset` with collation and batching. This method is
designed to create a "ready-to-use" dataset that can be passed directly to Keras methods like `fit()` without
further modification. The method will drop columns from the dataset if they don't match input names for the
model. If you want to specify the column names to return rather than using the names that match this model, we
recommend using `Dataset.to_tf_dataset()` instead.
Args:
dataset (`Any`):
A [~`datasets.Dataset`] to be wrapped as a `tf.data.Dataset`.
batch_size (`int`, defaults to 8):
The size of batches to return.
shuffle (`bool`, defaults to `True`):
Whether to return samples from the dataset in random order. Usually `True` for training datasets and
`False` for validation/test datasets.
tokenizer ([`PreTrainedTokenizerBase`], *optional*):
A `PreTrainedTokenizer` that will be used to pad samples to create batches. Has no effect if a specific
`collate_fn` is passed instead.
collate_fn (`Callable`, *optional*):
A function that collates samples from the dataset into a single batch. Defaults to
`DefaultDataCollator` if no `tokenizer` is supplied or `DataCollatorWithPadding` if a `tokenizer` is
passed.
collate_fn_args (`Dict[str, Any]`, *optional*):
A dict of arguments to pass to the `collate_fn` alongside the list of samples.
drop_remainder (`bool`, *optional*):
Whether to drop the final batch, if the batch_size does not evenly divide the dataset length. Defaults
to the same setting as `shuffle`.
prefetch (`bool`, defaults to `True`):
Whether to add prefetching to the end of the `tf.data` pipeline. This is almost always beneficial for
performance, but can be disabled in edge cases.
Returns:
`Dataset`: A `tf.data.Dataset` which is ready to pass to the Keras API.
"""
requires_backends(self, ["datasets"])
import datasets
if collate_fn is None:
if tokenizer is None:
collate_fn = DefaultDataCollator(return_tensors="np")
else:
collate_fn = DataCollatorWithPadding(tokenizer=tokenizer, return_tensors="np")
if collate_fn_args is None:
collate_fn_args = {}
if not isinstance(dataset, datasets.Dataset):
raise TypeError("Dataset argument should be a datasets.Dataset!")
model_inputs = list(inspect.signature(self.call).parameters)
model_labels = find_labels(self.__class__)
if "cols_to_retain" in list(inspect.signature(dataset._get_output_signature).parameters.keys()):
output_signature, _ = dataset._get_output_signature(
dataset,
batch_size=None,
collate_fn=collate_fn,
collate_fn_args=collate_fn_args,
cols_to_retain=model_inputs,
)
else:
# TODO Matt: This is a workaround for older versions of datasets that are missing the `cols_to_retain`
# argument. We should remove this once the minimum supported version of datasets is > 2.3.2
unwanted_columns = [
feature
for feature in dataset.features
if feature not in model_inputs and feature not in ("label_ids", "label")
]
dataset = dataset.remove_columns(unwanted_columns)
output_signature, _ = dataset._get_output_signature(
dataset, batch_size=None, collate_fn=collate_fn, collate_fn_args=collate_fn_args
)
output_columns = list(output_signature.keys())
feature_cols = [col for col in output_columns if col in model_inputs and col not in model_labels]
label_cols = [col for col in output_columns if col in model_labels]
# Backwards compatibility for older versions of datasets. Previously, if `columns` or `label_cols`
# were a single element list, the returned element spec would be a single element. Now, passing [feature]
# will return a dict structure {"feature": feature}, and passing a single string will return a single element.
feature_cols = feature_cols[0] if len(feature_cols) == 1 else feature_cols
label_cols = label_cols[0] if len(label_cols) == 1 else label_cols
if drop_remainder is None:
drop_remainder = shuffle
tf_dataset = dataset.to_tf_dataset(
columns=feature_cols,
label_cols=label_cols,
batch_size=batch_size,
shuffle=shuffle,
drop_remainder=drop_remainder,
collate_fn=collate_fn,
collate_fn_args=collate_fn_args,
prefetch=prefetch,
)
return tf_dataset
def compile(
self,
optimizer="rmsprop",
loss="auto_with_warning",
metrics=None,
loss_weights=None,
weighted_metrics=None,
run_eagerly=None,
steps_per_execution=None,
**kwargs,
):
"""
This is a thin wrapper that sets the model's loss output head as the loss if the user does not specify a loss
function themselves.
"""
if loss in ("auto_with_warning", "passthrough"): # "passthrough" for workflow backward compatibility
logger.info(
"No loss specified in compile() - the model's internal loss computation will be used as the "
"loss. Don't panic - this is a common way to train TensorFlow models in Transformers! "
"To disable this behaviour please pass a loss argument, or explicitly pass "
"`loss=None` if you do not want your model to compute a loss. You can also specify `loss='auto'` to "
"get the internal loss without printing this info string."
)
loss = "auto"
if loss == "auto":
loss = dummy_loss
self._using_dummy_loss = True
else:
self._using_dummy_loss = False
parent_args = list(inspect.signature(keras.Model.compile).parameters.keys())
# This argument got renamed, we need to support both versions
if "steps_per_execution" in parent_args:
super().compile(
optimizer=optimizer,
loss=loss,
metrics=metrics,
loss_weights=loss_weights,
weighted_metrics=weighted_metrics,
run_eagerly=run_eagerly,
steps_per_execution=steps_per_execution,
**kwargs,
)
else:
super().compile(
optimizer=optimizer,
loss=loss,
metrics=metrics,
loss_weights=loss_weights,
weighted_metrics=weighted_metrics,
run_eagerly=run_eagerly,
experimental_steps_per_execution=steps_per_execution,
**kwargs,
)
def compute_loss(self, *args, **kwargs):
if hasattr(keras.Model, "compute_loss"):
# This will be true in TF 2.8 or greater
return super().compute_loss(*args, **kwargs)
else:
warnings.warn(
"The old compute_loss method is deprecated as it conflicts with the Keras compute_loss "
"method added in TF 2.8. If you want the original HF compute_loss, please call "
"hf_compute_loss() instead. From TF versions >= 2.8, or Transformers versions >= 5, "
"calling compute_loss() will get the Keras method instead.",
FutureWarning,
)
return self.hf_compute_loss(*args, **kwargs)
def get_label_to_output_name_mapping(self):
arg_names = list(inspect.signature(self.call).parameters)
if self._label_to_output_map is not None:
return self._label_to_output_map
elif "start_positions" in arg_names:
return {"start_positions": "start_logits", "end_positions": "end_logits"}
elif "sentence_order_label" in arg_names:
return {"labels": "prediction_logits", "sentence_order_label": "sop_logits"}
elif "next_sentence_label" in arg_names:
return {"labels": "prediction_logits", "next_sentence_label": "seq_relationship_logits"}
elif "mc_labels" in arg_names:
return {"labels": "logits", "mc_labels": "mc_logits"}
else:
return {}
def train_step(self, data):
"""
A modification of Keras's default `train_step` that correctly handles matching outputs to labels for our models
and supports directly training on the loss output head. In addition, it ensures input keys are copied to the
labels where appropriate. It will also copy label keys into the input dict when using the dummy loss, to ensure
that they are available to the model during the forward pass.
"""
# We hardcode the most common renamings; models with weirder names can set `self._label_to_output_map`
arg_names = list(inspect.signature(self.call).parameters)
label_kwargs = find_labels(self.__class__)
label_to_output = self.get_label_to_output_name_mapping()
output_to_label = {val: key for key, val in label_to_output.items()}
if not self._using_dummy_loss and parse(tf.__version__) < parse("2.11.0"):
# Newer TF train steps leave this out
data = expand_1d(data)
x, y, sample_weight = keras.utils.unpack_x_y_sample_weight(data)
# If the inputs are mutable dictionaries, make a shallow copy of them because we will modify
# them during input/label pre-processing. This avoids surprising the user by wrecking their data.
# In addition, modifying mutable Python inputs makes XLA compilation impossible.
if isinstance(x, dict):
x = x.copy()
if isinstance(y, dict):
y = y.copy()
# When using a dummy loss, we ensure that separate labels are copied to the correct model arguments,
# if those keys are not already present in the input dict
if self._using_dummy_loss and y is not None:
# If y is a tensor and the model only has one label-like input, map y to that input
if len(label_kwargs) == 1 and isinstance(y, tf.Tensor):
if isinstance(x, tf.Tensor):
x = {arg_names[0]: x}
label_kwarg = next(iter(label_kwargs))
if label_kwarg not in x:
x[label_kwarg] = y
# Otherwise, copy keys from y to x as long as they weren't already present in x
elif isinstance(y, dict):
if isinstance(x, tf.Tensor):
x = {arg_names[0]: x}
for key, val in y.items():
if key in arg_names and key not in x:
x[key] = val
elif output_to_label.get(key, None) in arg_names and key not in x:
x[output_to_label[key]] = val
if y is None:
y = {key: val for key, val in x.items() if key in label_kwargs}
if not y and not self._using_dummy_loss:
raise ValueError("Could not find label column(s) in input dict and no separate labels were provided!")
if isinstance(y, dict):
# Rename labels at this point to match output heads
y = {label_to_output.get(key, key): val for key, val in y.items()}
# Run forward pass.
with tf.GradientTape() as tape:
if self._using_dummy_loss and "return_loss" in arg_names:
y_pred = self(x, training=True, return_loss=True)
else:
y_pred = self(x, training=True)
if self._using_dummy_loss:
loss = self.compiled_loss(y_pred.loss, y_pred.loss, sample_weight, regularization_losses=self.losses)
else:
loss = None
# This next block matches outputs to label keys. Tensorflow's standard method for doing this
# can get very confused if any of the keys contain nested values (e.g. lists/tuples of Tensors)
if isinstance(y, dict) and len(y) == 1:
if list(y.keys())[0] in y_pred.keys():
y_pred = y_pred[list(y.keys())[0]]
elif list(y_pred.keys())[0] == "loss":
y_pred = y_pred[1]
else:
y_pred = y_pred[0]
_, y = y.popitem()
elif isinstance(y, dict):
# If the labels are a dict, match keys from the output by name
y_pred = {key: val for key, val in y_pred.items() if key in y}
elif isinstance(y, tuple) or isinstance(y, list):
# If the labels are a tuple/list, match keys to the output by order, skipping the loss.
if list(y_pred.keys())[0] == "loss":
y_pred = y_pred.to_tuple()[1:]
else:
y_pred = y_pred.to_tuple()
y_pred = y_pred[: len(y)] # Remove unused fields in case those cause problems
else:
# If the labels are a single tensor, match them to the first non-loss tensor in the output
if list(y_pred.keys())[0] == "loss":
y_pred = y_pred[1]
else:
y_pred = y_pred[0]
if loss is None:
loss = self.compiled_loss(y, y_pred, sample_weight, regularization_losses=self.losses)
# Run backwards pass.
self.optimizer.minimize(loss, self.trainable_variables, tape=tape)
self.compiled_metrics.update_state(y, y_pred, sample_weight)
# Collect metrics to return
return_metrics = {}
for metric in self.metrics:
result = metric.result()
if isinstance(result, dict):
return_metrics.update(result)
else:
return_metrics[metric.name] = result
return return_metrics
def test_step(self, data):
"""
A modification of Keras's default `train_step` that correctly handles matching outputs to labels for our models
and supports directly training on the loss output head. In addition, it ensures input keys are copied to the
labels where appropriate. It will also copy label keys into the input dict when using the dummy loss, to ensure
that they are available to the model during the forward pass.
"""
# We hardcode the most common renamings; models with weirder names can set `self._label_to_output_map`
arg_names = list(inspect.signature(self.call).parameters)
label_kwargs = find_labels(self.__class__)
label_to_output = self.get_label_to_output_name_mapping()
output_to_label = {val: key for key, val in label_to_output.items()}
if not self._using_dummy_loss and parse(tf.__version__) < parse("2.11.0"):
# Newer versions leave this out
data = expand_1d(data)
x, y, sample_weight = keras.utils.unpack_x_y_sample_weight(data)
# If the inputs are mutable dictionaries, make a shallow copy of them because we will modify
# them during input/label pre-processing. This avoids surprising the user by wrecking their data.
# In addition, modifying mutable Python inputs makes XLA compilation impossible.
if isinstance(x, dict):
x = x.copy()
if isinstance(y, dict):
y = y.copy()
# When using a dummy loss, we ensure that separate labels are copied to the correct model arguments,
# if those keys are not already present in the input dict
if self._using_dummy_loss and y is not None:
arg_names = list(inspect.signature(self.call).parameters)
# If y is a tensor and the model only has one label-like input, map y to that input
if len(label_kwargs) == 1 and isinstance(y, tf.Tensor):
if isinstance(x, tf.Tensor):
x = {arg_names[0]: x}
label_kwarg = next(iter(label_kwargs))
if label_kwarg not in x:
x[label_kwarg] = y
# Otherwise, copy keys from y to x as long as they weren't already present in x
elif isinstance(y, dict):
if isinstance(x, tf.Tensor):
x = {arg_names[0]: x}
for key, val in y.items():
if key in arg_names and key not in x:
x[key] = val
elif output_to_label.get(key, None) in arg_names and key not in x:
x[output_to_label[key]] = val
if y is None:
y = {key: val for key, val in x.items() if key in label_kwargs}
if not y and not self._using_dummy_loss:
raise ValueError("Could not find label column(s) in input dict and no separate labels were provided!")
if isinstance(y, dict):
# Rename labels at this point to match output heads
y = {label_to_output.get(key, key): val for key, val in y.items()}
# Run forward pass.
if self._using_dummy_loss and "return_loss" in arg_names:
y_pred = self(x, return_loss=True, training=False)
else:
y_pred = self(x, training=False)
if self._using_dummy_loss:
loss = self.compiled_loss(y_pred.loss, y_pred.loss, sample_weight, regularization_losses=self.losses)
else:
loss = None
# This next block matches outputs to label keys. Tensorflow's standard method for doing this
# can get very confused if any of the keys contain nested values (e.g. lists/tuples of Tensors)
if isinstance(y, dict) and len(y) == 1:
if list(y.keys())[0] in y_pred.keys():
y_pred = y_pred[list(y.keys())[0]]
elif list(y_pred.keys())[0] == "loss":
y_pred = y_pred[1]
else:
y_pred = y_pred[0]
_, y = y.popitem()
elif isinstance(y, dict):
# If the labels are a dict, match keys from the output by name
y_pred = {key: val for key, val in y_pred.items() if key in y}
elif isinstance(y, tuple) or isinstance(y, list):
# If the labels are a tuple/list, match keys to the output by order, skipping the loss.
if list(y_pred.keys())[0] == "loss":
y_pred = y_pred.to_tuple()[1:]
else:
y_pred = y_pred.to_tuple()
y_pred = y_pred[: len(y)] # Remove unused fields in case those cause problems
else:
# If the labels are a single tensor, match them to the first non-loss tensor in the output
if list(y_pred.keys())[0] == "loss":
y_pred = y_pred[1]
else:
y_pred = y_pred[0]
if loss is None:
loss = self.compiled_loss(y, y_pred, sample_weight, regularization_losses=self.losses)
self.compiled_metrics.update_state(y, y_pred, sample_weight)
# Collect metrics to return
return_metrics = {}
for metric in self.metrics:
result = metric.result()
if isinstance(result, dict):
return_metrics.update(result)
else:
return_metrics[metric.name] = result
return return_metrics
def create_model_card(
self,
output_dir,
model_name: str,
language: Optional[str] = None,
license: Optional[str] = None,
tags: Optional[str] = None,
finetuned_from: Optional[str] = None,
tasks: Optional[str] = None,
dataset_tags: Optional[Union[str, List[str]]] = None,
dataset: Optional[Union[str, List[str]]] = None,
dataset_args: Optional[Union[str, List[str]]] = None,
):
"""
Creates a draft of a model card using the information available to the `Trainer`.
Args:
output_dir (`str` or `os.PathLike`):
The folder in which to create the model card.
model_name (`str`, *optional*):
The name of the model.
language (`str`, *optional*):
The language of the model (if applicable)
license (`str`, *optional*):
The license of the model. Will default to the license of the pretrained model used, if the original
model given to the `Trainer` comes from a repo on the Hub.
tags (`str` or `List[str]`, *optional*):
Some tags to be included in the metadata of the model card.
finetuned_from (`str`, *optional*):
The name of the model used to fine-tune this one (if applicable). Will default to the name of the repo
of the original model given to the `Trainer` (if it comes from the Hub).
tasks (`str` or `List[str]`, *optional*):
One or several task identifiers, to be included in the metadata of the model card.
dataset_tags (`str` or `List[str]`, *optional*):
One or several dataset tags, to be included in the metadata of the model card.
dataset (`str` or `List[str]`, *optional*):
One or several dataset identifiers, to be included in the metadata of the model card.
dataset_args (`str` or `List[str]`, *optional*):
One or several dataset arguments, to be included in the metadata of the model card.
"""
# Avoids a circular import by doing this when necessary.
from .modelcard import TrainingSummary # tests_ignore
training_summary = TrainingSummary.from_keras(
self,
keras_history=self.history,
language=language,
license=license,
tags=tags,
model_name=model_name,
finetuned_from=finetuned_from,
tasks=tasks,
dataset_tags=dataset_tags,
dataset=dataset,
dataset_args=dataset_args,
)
model_card = training_summary.to_model_card()
with open(os.path.join(output_dir, "README.md"), "w") as f:
f.write(model_card)
def set_input_embeddings(self, value):
"""
Set model's input embeddings
Args:
value (`tf.Variable`):
The new weights mapping hidden states to vocabulary.
"""
main_layer = getattr(self, self.base_model_prefix)
if main_layer is None:
raise NotImplementedError("The model does not implements the base_model_prefix attribute.")
try:
main_layer.set_input_embeddings(value)
except AttributeError:
logger.info("Building the model")
self.build_in_name_scope()
main_layer.set_input_embeddings(value)
def get_output_embeddings(self) -> Union[None, keras.layers.Layer]:
"""
Returns the model's output embeddings
Returns:
`tf.Variable`: The new weights mapping vocabulary to hidden states.
"""
if self.get_lm_head() is not None:
lm_head = self.get_lm_head()
try:
return lm_head.get_output_embeddings()
except AttributeError:
logger.info("Building the model")
self.build_in_name_scope()
return lm_head().get_output_embeddings()
return None # Overwrite for models with output embeddings
def set_output_embeddings(self, value):
"""
Set model's output embeddings
Args:
value (`tf.Variable`):
The new weights mapping hidden states to vocabulary.
"""
if self.get_lm_head() is not None:
lm_head = self.get_lm_head()
try:
lm_head.set_output_embeddings(value)
except AttributeError:
logger.info("Building the model")
self.build_in_name_scope()
lm_head.set_output_embeddings(value)
def get_output_layer_with_bias(self) -> Union[None, keras.layers.Layer]:
"""
Get the layer that handles a bias attribute in case the model has an LM head with weights tied to the
embeddings
Return:
`keras.layers.Layer`: The layer that handles the bias, None if not an LM model.
"""
warnings.warn(
"The method get_output_layer_with_bias is deprecated. Please use `get_lm_head` instead.", FutureWarning
)
return self.get_lm_head()
def get_prefix_bias_name(self) -> Union[None, str]:
"""
Get the concatenated _prefix name of the bias from the model name to the parent layer
Return:
`str`: The _prefix name of the bias.
"""
warnings.warn("The method get_prefix_bias_name is deprecated. Please use `get_bias` instead.", FutureWarning)
return None
def get_bias(self) -> Union[None, Dict[str, tf.Variable]]:
"""
Dict of bias attached to an LM head. The key represents the name of the bias attribute.
Return:
`tf.Variable`: The weights representing the bias, None if not an LM model.
"""
if self.get_lm_head() is not None:
lm_head = self.get_lm_head()
try:
return lm_head.get_bias()
except AttributeError:
self.build_in_name_scope()
return lm_head.get_bias()
return None
def set_bias(self, value):
"""
Set all the bias in the LM head.
Args:
value (`Dict[tf.Variable]`):
All the new bias attached to an LM head.
"""
if self.get_lm_head() is not None:
lm_head = self.get_lm_head()
try:
lm_head.set_bias(value)
except AttributeError:
self.build_in_name_scope()
lm_head.set_bias(value)
def get_lm_head(self) -> keras.layers.Layer:
"""
The LM Head layer. This method must be overwritten by all the models that have a lm head.
Return:
`keras.layers.Layer`: The LM head layer if the model has one, None if not.
"""
return None
def resize_token_embeddings(
self, new_num_tokens: Optional[int] = None
) -> Union[keras.layers.Embedding, tf.Variable]:
"""
Resizes input token embeddings matrix of the model if `new_num_tokens != config.vocab_size`.
Takes care of tying weights embeddings afterwards if the model class has a `tie_weights()` method.
Arguments:
new_num_tokens (`int`, *optional*):
The number of new tokens in the embedding matrix. Increasing the size will add newly initialized
vectors at the end. Reducing the size will remove vectors from the end. If not provided or `None`, just
returns a pointer to the input tokens without doing anything.
Return:
`tf.Variable` or `keras.layers.Embedding`: Pointer to the input tokens of the model.
"""
# TODO (joao): flagged for replacement (by `_v2_resized_token_embeddings`) due to embeddings refactor
# Run the new code path if the model has a keras embeddings layer
if isinstance(self.get_input_embeddings(), keras.layers.Embedding):
return self._v2_resized_token_embeddings(new_num_tokens)
if new_num_tokens is None or new_num_tokens == self.config.vocab_size:
return self._get_word_embedding_weight(self.get_input_embeddings())
model_embeds = self._resize_token_embeddings(new_num_tokens)
# Update base model and current model config
self.config.vocab_size = new_num_tokens
return model_embeds
def _v2_resized_token_embeddings(self, new_num_tokens: Optional[int] = None) -> keras.layers.Embedding:
"""
Resizes input token embeddings matrix of the model if `new_num_tokens != config.vocab_size`.
Arguments:
new_num_tokens (`int`, *optional*):
The number of new tokens in the embedding matrix. Increasing the size will add newly initialized
vectors at the end. Reducing the size will remove vectors from the end. If not provided or `None`, just
returns a pointer to the input tokens without doing anything.
Return:
`keras.layers.Embedding`: Pointer to the input tokens of the model.
"""
if new_num_tokens is None or new_num_tokens == self.config.vocab_size:
return self.get_input_embeddings()
model_embeds = self._v2_resize_token_embeddings(new_num_tokens)
# Update base model and current model config
self.config.vocab_size = new_num_tokens
return model_embeds
def _get_word_embedding_weight(model, embedding_layer):
# TODO (joao): flagged for delection due to embeddings refactor
# If the variable holds the weights themselves, return them
if isinstance(embedding_layer, tf.Tensor):
return embedding_layer
# Otherwise, try to get them from the layer's attributes
embeds = getattr(embedding_layer, "weight", None)
if embeds is not None:
return embeds
embeds = getattr(embedding_layer, "decoder", None)
if embeds is not None:
return embeds
# The reason why the attributes don't exist might be
# because the model is not built, so retry getting
# the argument after building the model
model.build_in_name_scope()
embeds = getattr(embedding_layer, "weight", None)
if embeds is not None:
return embeds
embeds = getattr(embedding_layer, "decoder", None)
if embeds is not None:
return embeds
return None
def _resize_token_embeddings(self, new_num_tokens):
# TODO (joao): flagged for replacement (by `_v2_resize_token_embeddings`) due to embeddings refactor
old_embeddings = self._get_word_embedding_weight(self.get_input_embeddings())
new_embeddings = self._get_resized_embeddings(old_embeddings, new_num_tokens)
# if word embeddings are not tied, make sure that lm head bias is resized as well
if self.get_bias() is not None:
old_lm_head_bias = self.get_bias()
new_lm_head_bias = self._get_resized_lm_head_bias(old_lm_head_bias, new_num_tokens)
self.set_bias(new_lm_head_bias)
# if word embeddings are not tied, make sure that lm head decoder is resized as well
if self.get_output_embeddings() is not None:
old_lm_head_decoder = self._get_word_embedding_weight(self.get_output_embeddings())
new_lm_head_decoder = self._get_resized_lm_head_decoder(old_lm_head_decoder, new_num_tokens)
self.set_output_embeddings(new_lm_head_decoder)
self.set_input_embeddings(new_embeddings)
return self.get_input_embeddings()
def _v2_resize_token_embeddings(self, new_num_tokens):
old_embeddings = self.get_input_embeddings()
new_embeddings = self._v2_get_resized_embeddings(old_embeddings, new_num_tokens)
self.set_input_embeddings(new_embeddings)
# If word embeddings are not tied, make sure that lm head bias is resized as well
if self.get_bias() is not None:
old_lm_head_bias = self.get_bias()
new_lm_head_bias = self._v2_get_resized_lm_head_bias(old_lm_head_bias, new_num_tokens)
self.set_bias(new_lm_head_bias)
# If word embeddings are not tied, make sure that lm head decoder is resized as well.
tied_weights = self.get_input_embeddings() == self.get_output_embeddings()
if self.get_output_embeddings() is not None and not tied_weights:
old_lm_head_decoder = self._get_word_embedding_weight(self.get_output_embeddings())
# TODO (joao): this one probably needs a v2 version with other models
new_lm_head_decoder = self._get_resized_lm_head_decoder(old_lm_head_decoder, new_num_tokens)
self.set_output_embeddings(new_lm_head_decoder)
return self.get_input_embeddings()
def _get_resized_lm_head_bias(self, old_lm_head_bias, new_num_tokens):
"""
Build a resized bias from the old ones. Increasing the size will add newly initialized vectors at the end.
Reducing the size will remove vectors from the end
Args:
old_lm_head_bias (`tf.Variable`):
Old lm head bias to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the linear matrix.
Increasing the size will add newly initialized vectors at the end. Reducing the size will remove
vectors from the end. If not provided or `None`, just returns None
Return:
`tf.Variable`: Pointer to the resized bias.
"""
# TODO (joao): flagged for replacement (by `_v2_get_resized_lm_head_bias`) due to embeddings refactor
new_lm_head_bias = {}
for attr, weight in old_lm_head_bias.items():
first_dim, old_num_tokens = (None, shape_list(weight)[0]) if tf.rank(weight) == 1 else shape_list(weight)
size_diff = new_num_tokens - old_num_tokens
final_shape = [new_num_tokens] if first_dim is None else [first_dim, new_num_tokens]
# initialize new bias
if tf.math.greater(size_diff, 0):
padding_shape = [[0, size_diff]] if first_dim is None else [[0, 0], [0, size_diff]]
current_bias = tf.pad(weight.value(), tf.convert_to_tensor(padding_shape), constant_values=-1)
num_tokens_to_copy = min(old_num_tokens, new_num_tokens)
mask_shape = [num_tokens_to_copy] if first_dim is None else [1, num_tokens_to_copy]
bias_mask = tf.fill(tf.convert_to_tensor(mask_shape), True)
bias_mask = tf.pad(bias_mask, tf.convert_to_tensor(padding_shape), constant_values=False)
else:
slice_from = [0] if first_dim is None else [0, 0]
current_bias = tf.slice(
weight.value(), tf.convert_to_tensor(slice_from), tf.convert_to_tensor(final_shape)
)
bias_mask = tf.fill(tf.convert_to_tensor(final_shape), True)
new_bias = self.add_weight(
shape=final_shape,
initializer="zeros",
trainable=True,
name=weight.name.split(":")[0],
)
init_bias = tf.where(bias_mask, current_bias, new_bias.value())
new_bias.assign(init_bias)
new_lm_head_bias[attr] = new_bias
return new_lm_head_bias
def _v2_get_resized_lm_head_bias(
self, old_lm_head_bias: Dict[str, tf.Variable], new_num_tokens: int
) -> Dict[str, tf.Tensor]:
"""
Build a resized bias from the old ones. Increasing the size will add newly initialized vectors at the end.
Reducing the size will remove vectors from the end
Args:
old_lm_head_bias (`Dict[str, tf.Variable]`):
Old lm head bias to be resized.
new_num_tokens (`int`):
New number of tokens in the linear matrix. Increasing the size will add newly initialized vectors at
the end. Reducing the size will remove vectors from the end.
Return:
`tf.Tensor`: Values for the resized bias.
"""
new_lm_head_bias = {}
for attr, weight in old_lm_head_bias.items():
# Determine the size difference (depending on the shape)
first_dim, old_num_tokens = (None, shape_list(weight)[0]) if tf.rank(weight) == 1 else shape_list(weight)
size_diff = new_num_tokens - old_num_tokens
# Copy the old bias values to the new bias
if old_num_tokens > new_num_tokens:
new_bias = weight.value()[..., :new_num_tokens]
else:
padding_shape = [[0, size_diff]] if first_dim is None else [[0, 0], [0, size_diff]]
new_bias = tf.pad(weight.value(), tf.convert_to_tensor(padding_shape))
new_lm_head_bias[attr] = new_bias
return new_lm_head_bias
def _get_resized_lm_head_decoder(self, old_lm_head_decoder, new_num_tokens):
"""
Build a resized decoder from the old ones. Increasing the size will add newly initialized vectors at the end.
Reducing the size will remove vectors from the end
Args:
old_lm_head_decoder (`tf.Variable`):
Old lm head decoder to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the linear matrix.
Increasing the size will add newly initialized vectors at the end. Reducing the size will remove
vectors from the end. If not provided or `None`, just returns None
Return:
`tf.Variable`: Pointer to the resized decoder or None if the output embeddings are different from the input
ones.
"""
new_lm_head_decoder = old_lm_head_decoder
is_input_output_equals = tf.reduce_any(
self._get_word_embedding_weight(self.get_input_embeddings()) == old_lm_head_decoder
)
if old_lm_head_decoder is not None and not is_input_output_equals:
old_embedding_dim = shape_list(old_lm_head_decoder)[1]
decoder_mask, current_decoder = init_copy_embeddings(old_lm_head_decoder, new_num_tokens)
new_lm_head_decoder = self.add_weight(
shape=(new_num_tokens, old_embedding_dim),
initializer="zeros",
trainable=True,
name=old_lm_head_decoder.name.split(":")[0],
)
init_decoder = tf.where(decoder_mask, current_decoder, new_lm_head_decoder.value())
new_lm_head_decoder.assign(init_decoder)
return new_lm_head_decoder
def _get_resized_embeddings(self, old_embeddings, new_num_tokens=None) -> tf.Variable:
"""
Build a resized Embedding weights from a provided token Embedding weights. Increasing the size will add newly
initialized vectors at the end. Reducing the size will remove vectors from the end
Args:
old_embeddings (`tf.Variable`):
Old embeddings to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the embedding matrix.
Increasing the size will add newly initialized vectors at the end. Reducing the size will remove
vectors from the end. If not provided or `None`, just returns a pointer to the input tokens
`tf.Variable` module of the model without doing anything.
Return:
`tf.Variable`: Pointer to the resized Embedding Module or the old Embedding Module if `new_num_tokens` is
`None`
"""
# TODO (joao): flagged for replacement (by `_v2_get_resized_embeddings`) due to embeddings refactor
old_embedding_dim = shape_list(old_embeddings)[1]
init_range = getattr(self.config, "initializer_range", 0.02)
embeddings_mask, current_embeddings = init_copy_embeddings(old_embeddings, new_num_tokens)
new_embeddings = self.add_weight(
name=old_embeddings.name.split(":")[0],
shape=[new_num_tokens, old_embedding_dim],
initializer=get_initializer(init_range),
dtype=tf.float32,
)
init_embeddings = tf.where(embeddings_mask, current_embeddings, new_embeddings.value())
new_embeddings.assign(init_embeddings)
return new_embeddings
def _v2_get_resized_embeddings(
self, old_embeddings: keras.layers.Embedding, new_num_tokens: int
) -> keras.layers.Embedding:
"""
Build a resized Embedding layer from a provided Embedding layer. Increasing the size will add newly initialized
vectors at the end. Reducing the size will remove vectors from the end.
Args:
old_embeddings (`keras.layers.Embedding`):
Old embeddings to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the embedding matrix.
Return:
`keras.layers.Embedding`: Resized Embedding layer.
"""
# Get the initialization range for the embeddings
init_range = 0.02 # default value
potential_initialization_variable_names = [
"initializer_range", # most common
"initializer_factor", # e.g. T5
"init_std", # e.g BART
]
for var_name in potential_initialization_variable_names:
if hasattr(self.config, var_name):
init_range = getattr(self.config, var_name)
# Get a new (initialized) embeddings layer
new_embeddings = keras.layers.Embedding(
input_dim=new_num_tokens,
output_dim=old_embeddings.output_dim,
embeddings_initializer=keras.initializers.TruncatedNormal(stddev=init_range),
name=old_embeddings.embeddings.name[:-13], # exact same scoped name except "/embeddings:0"
)
new_embeddings(tf.constant([[0]]))
# Copy the old embeddings to the new embeddings
if old_embeddings.input_dim >= new_num_tokens:
init_embeddings = old_embeddings.embeddings[:new_num_tokens]
else:
init_embeddings = tf.concat(
[old_embeddings.embeddings, new_embeddings.embeddings[old_embeddings.input_dim :]], axis=0
)
new_embeddings.embeddings.assign(init_embeddings)
return new_embeddings
def prune_heads(self, heads_to_prune):
"""
Prunes heads of the base model.
Arguments:
heads_to_prune (`Dict[int, List[int]]`):
Dictionary with keys being selected layer indices (`int`) and associated values being the list of heads
to prune in said layer (list of `int`). For instance {1: [0, 2], 2: [2, 3]} will prune heads 0 and 2 on
layer 1 and heads 2 and 3 on layer 2.
"""
raise NotImplementedError
def save_pretrained(
self,
save_directory,
saved_model=False,
version=1,
push_to_hub=False,
signatures=None,
max_shard_size: Union[int, str] = "5GB",
create_pr: bool = False,
safe_serialization: bool = False,
token: Optional[Union[str, bool]] = None,
**kwargs,
):
"""
Save a model and its configuration file to a directory, so that it can be re-loaded using the
[`~TFPreTrainedModel.from_pretrained`] class method.
Arguments:
save_directory (`str`):
Directory to which to save. Will be created if it doesn't exist.
saved_model (`bool`, *optional*, defaults to `False`):
If the model has to be saved in saved model format as well or not.
version (`int`, *optional*, defaults to 1):
The version of the saved model. A saved model needs to be versioned in order to be properly loaded by
TensorFlow Serving as detailed in the official documentation
https://www.tensorflow.org/tfx/serving/serving_basic
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
signatures (`dict` or `tf.function`, *optional*):
Model's signature used for serving. This will be passed to the `signatures` argument of model.save().
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
The maximum size for a checkpoint before being sharded. Checkpoints shard will then be each of size
lower than this size. If expressed as a string, needs to be digits followed by a unit (like `"5MB"`).
<Tip warning={true}>
If a single weight of the model is bigger than `max_shard_size`, it will be in its own checkpoint shard
which will be bigger than `max_shard_size`.
</Tip>
create_pr (`bool`, *optional*, defaults to `False`):
Whether or not to create a PR with the uploaded files or directly commit.
safe_serialization (`bool`, *optional*, defaults to `False`):
Whether to save the model using `safetensors` or the traditional TensorFlow way (that uses `h5`).
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
if os.path.isfile(save_directory):
logger.error(f"Provided path ({save_directory}) should be a directory, not a file")
return
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
if saved_model:
# If `torch_dtype` is in the config with a torch dtype class as the value, we need to change it to string.
# (Although TF doesn't care about this attribute, we can't just remove it or set it to `None`.)
if getattr(self.config, "torch_dtype", None) is not None and not isinstance(self.config.torch_dtype, str):
self.config.torch_dtype = str(self.config.torch_dtype).split(".")[1]
if signatures is None:
serving_default = self.serving.get_concrete_function(self.input_signature)
if any(spec.dtype == tf.int32 for spec in self.input_signature.values()):
int64_spec = {
key: tf.TensorSpec(
shape=spec.shape, dtype=tf.int64 if spec.dtype == tf.int32 else spec.dtype, name=spec.name
)
for key, spec in self.input_signature.items()
}
int64_serving = self.serving.get_concrete_function(int64_spec)
signatures = {"serving_default": serving_default, "int64_serving": int64_serving}
else:
signatures = serving_default
saved_model_dir = os.path.join(save_directory, "saved_model", str(version))
self.save(saved_model_dir, include_optimizer=False, signatures=signatures)
logger.info(f"Saved model created in {saved_model_dir}")
# Save configuration file
self.config.architectures = [self.__class__.__name__[2:]]
# If we have a custom model, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=self.config)
self.config.save_pretrained(save_directory)
if self.can_generate():
self.generation_config.save_pretrained(save_directory)
# If we save using the predefined names, we can load using `from_pretrained`
weights_name = SAFE_WEIGHTS_NAME if safe_serialization else TF2_WEIGHTS_NAME
output_model_file = os.path.join(save_directory, weights_name)
shards, index = tf_shard_checkpoint(self.weights, max_shard_size, weights_name=weights_name)
# Clean the folder from a previous save
for filename in os.listdir(save_directory):
full_filename = os.path.join(save_directory, filename)
# If we have a shard file that is not going to be replaced, we delete it, but only from the main process
# in distributed settings to avoid race conditions.
weights_no_suffix = weights_name.replace(".bin", "").replace(".safetensors", "")
if (
filename.startswith(weights_no_suffix)
and os.path.isfile(full_filename)
and filename not in shards.keys()
):
os.remove(full_filename)
if index is None:
if safe_serialization:
state_dict = {strip_model_name_and_prefix(w.name): w.value() for w in self.weights}
safe_save_file(state_dict, output_model_file, metadata={"format": "tf"})
else:
self.save_weights(output_model_file)
logger.info(f"Model weights saved in {output_model_file}")
else:
save_index_file = SAFE_WEIGHTS_INDEX_NAME if safe_serialization else TF2_WEIGHTS_INDEX_NAME
save_index_file = os.path.join(save_directory, save_index_file)
# Save the index as well
with open(save_index_file, "w", encoding="utf-8") as index_file:
content = json.dumps(index, indent=2, sort_keys=True) + "\n"
index_file.write(content)
logger.info(
f"The model is bigger than the maximum size per checkpoint ({max_shard_size}) and is going to be "
f"split in {len(shards)} checkpoint shards. You can find where each parameters has been saved in the "
f"index located at {save_index_file}."
)
for shard_file, shard in shards.items():
if safe_serialization:
shard_state_dict = {strip_model_name_and_prefix(w.name): w.value() for w in shard}
safe_save_file(
shard_state_dict, os.path.join(save_directory, shard_file), metadata={"format": "tf"}
)
else:
with h5py.File(os.path.join(save_directory, shard_file), mode="w") as shard_file:
layers = []
for layer in sorted(shard, key=lambda x: x.name):
if "model." in layer.name or len(layer.name.split("/")) == 1:
layer_name = layer.name
else:
layer_name = "/".join(layer.name.split("/")[1:])
param_dset = shard_file.create_dataset(
layer_name, layer.numpy().shape, dtype=layer.numpy().dtype
)
param_dset[:] = layer.numpy()
layers.append(layer_name.encode("utf8"))
save_attributes_to_hdf5_group(shard_file, "layer_names", layers)
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=token,
)
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Optional[Union[str, os.PathLike]],
*model_args,
config: Optional[Union[PretrainedConfig, str, os.PathLike]] = None,
cache_dir: Optional[Union[str, os.PathLike]] = None,
ignore_mismatched_sizes: bool = False,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
use_safetensors: bool = None,
**kwargs,
):
r"""
Instantiate a pretrained TF 2.0 model from a pre-trained model configuration.
The warning *Weights from XXX not initialized from pretrained model* means that the weights of XXX do not come
pretrained with the rest of the model. It is up to you to train those weights with a downstream fine-tuning
task.
The warning *Weights from XXX not used in YYY* means that the layer XXX is not used by YYY, therefore those
weights are discarded.
Parameters:
pretrained_model_name_or_path (`str`, *optional*):
Can be either:
- A string, the *model id* of a pretrained model hosted inside a model repo on huggingface.co.
- A path to a *directory* containing model weights saved using
[`~TFPreTrainedModel.save_pretrained`], e.g., `./my_model_directory/`.
- A path or url to a *PyTorch state_dict save file* (e.g, `./pt_model/pytorch_model.bin`). In this
case, `from_pt` should be set to `True` and a configuration object should be provided as `config`
argument. This loading path is slower than converting the PyTorch model in a TensorFlow model
using the provided conversion scripts and loading the TensorFlow model afterwards.
- `None` if you are both providing the configuration and state dictionary (resp. with keyword
arguments `config` and `state_dict`).
model_args (sequence of positional arguments, *optional*):
All remaining positional arguments will be passed to the underlying model's `__init__` method.
config (`Union[PretrainedConfig, str]`, *optional*):
Can be either:
- an instance of a class derived from [`PretrainedConfig`],
- a string valid as input to [`~PretrainedConfig.from_pretrained`].
Configuration for the model to use instead of an automatically loaded configuration. Configuration can
be automatically loaded when:
- The model is a model provided by the library (loaded with the *model id* string of a pretrained
model).
- The model was saved using [`~TFPreTrainedModel.save_pretrained`] and is reloaded by supplying the
save directory.
- The model is loaded by supplying a local directory as `pretrained_model_name_or_path` and a
configuration JSON file named *config.json* is found in the directory.
from_pt (`bool`, *optional*, defaults to `False`):
Load the model weights from a PyTorch state_dict save file (see docstring of
`pretrained_model_name_or_path` argument).
ignore_mismatched_sizes (`bool`, *optional*, defaults to `False`):
Whether or not to raise an error if some of the weights from the checkpoint do not have the same size
as the weights of the model (if for instance, you are instantiating a model with 10 labels from a
checkpoint with 3 labels).
cache_dir (`str`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the
standard cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force the (re-)download of the model weights and configuration files, overriding the
cached versions if they exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received files. Will attempt to resume the download if such a
file exists.
proxies:
(`Dict[str, str], `optional`): A dictionary of proxy servers to use by protocol or endpoint, e.g.,
`{'http': 'foo.bar:3128', 'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request.
output_loading_info(`bool`, *optional*, defaults to `False`): Whether ot not to also return a
dictionary containing missing keys, unexpected keys and error messages.
local_files_only(`bool`, *optional*, defaults to `False`):
Whether or not to only look at local files (e.g., not try downloading the model).
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
<Tip>
To test a pull request you made on the Hub, you can pass `revision="refs/pr/<pr_number>".
</Tip>
mirror (`str`, *optional*):
Mirror source to accelerate downloads in China. If you are from China and have an accessibility
problem, you can set this option to resolve it. Note that we do not guarantee the timeliness or safety.
Please refer to the mirror site for more information.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
tf_to_pt_weight_rename (`Callable`, *optional*):
A function that is called to transform the names of weights during the PyTorch to TensorFlow
crossloading process. This is not necessary for most models, but is useful to allow composite models to
be crossloaded correctly.
use_safetensors (`bool`, *optional*, defaults to `None`):
Whether or not to use `safetensors` checkpoints. Defaults to `None`. If not specified and `safetensors`
is not installed, it will be set to `False`.
kwargs (remaining dictionary of keyword arguments, *optional*):
Can be used to update the configuration object (after it being loaded) and initiate the model (e.g.,
`output_attentions=True`). Behaves differently depending on whether a `config` is provided or
automatically loaded:
- If a configuration is provided with `config`, `**kwargs` will be directly passed to the
underlying model's `__init__` method (we assume all relevant updates to the configuration have
already been done)
- If a configuration is not provided, `kwargs` will be first passed to the configuration class
initialization function ([`~PretrainedConfig.from_pretrained`]). Each key of `kwargs` that
corresponds to a configuration attribute will be used to override said attribute with the
supplied `kwargs` value. Remaining keys that do not correspond to any configuration attribute
will be passed to the underlying model's `__init__` function.
Examples:
```python
>>> from transformers import BertConfig, TFBertModel
>>> # Download model and configuration from huggingface.co and cache.
>>> model = TFBertModel.from_pretrained("google-bert/bert-base-uncased")
>>> # Model was saved using *save_pretrained('./test/saved_model/')* (for example purposes, not runnable).
>>> model = TFBertModel.from_pretrained("./test/saved_model/")
>>> # Update configuration during loading.
>>> model = TFBertModel.from_pretrained("google-bert/bert-base-uncased", output_attentions=True)
>>> assert model.config.output_attentions == True
>>> # Loading from a Pytorch model file instead of a TensorFlow checkpoint (slower, for example purposes, not runnable).
>>> config = BertConfig.from_json_file("./pt_model/my_pt_model_config.json")
>>> model = TFBertModel.from_pretrained("./pt_model/my_pytorch_model.bin", from_pt=True, config=config)
```"""
from_pt = kwargs.pop("from_pt", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
output_loading_info = kwargs.pop("output_loading_info", False)
use_auth_token = kwargs.pop("use_auth_token", None)
trust_remote_code = kwargs.pop("trust_remote_code", None)
_ = kwargs.pop("mirror", None)
load_weight_prefix = kwargs.pop("load_weight_prefix", None)
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
subfolder = kwargs.pop("subfolder", "")
commit_hash = kwargs.pop("_commit_hash", None)
tf_to_pt_weight_rename = kwargs.pop("tf_to_pt_weight_rename", None)
# Not relevant for TF models
_ = kwargs.pop("adapter_kwargs", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if trust_remote_code is True:
logger.warning(
"The argument `trust_remote_code` is to be used with Auto classes. It has no effect here and is"
" ignored."
)
user_agent = {"file_type": "model", "framework": "tensorflow", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
if use_safetensors is None and not is_safetensors_available():
use_safetensors = False
# Load config if we don't provide a configuration
if not isinstance(config, PretrainedConfig):
config_path = config if config is not None else pretrained_model_name_or_path
config, model_kwargs = cls.config_class.from_pretrained(
config_path,
cache_dir=cache_dir,
return_unused_kwargs=True,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
_commit_hash=commit_hash,
**kwargs,
)
else:
model_kwargs = kwargs
if commit_hash is None:
commit_hash = getattr(config, "_commit_hash", None)
# This variable will flag if we're loading a sharded checkpoint. In this case the archive file is just the
# index of the files.
is_sharded = False
# Load model
if pretrained_model_name_or_path is not None:
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if is_local:
if from_pt and os.path.isfile(os.path.join(pretrained_model_name_or_path, WEIGHTS_NAME)):
# Load from a PyTorch checkpoint in priority if from_pt
archive_file = os.path.join(pretrained_model_name_or_path, WEIGHTS_NAME)
elif from_pt and os.path.isfile(os.path.join(pretrained_model_name_or_path, WEIGHTS_INDEX_NAME)):
# Load from a sharded PyTorch checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, WEIGHTS_INDEX_NAME)
is_sharded = True
elif use_safetensors is not False and os.path.isfile(
os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_NAME)
):
# Load from a safetensors checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_NAME)
elif use_safetensors is not False and os.path.isfile(
os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME)
):
# Load from a sharded safetensors checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME)
is_sharded = True
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, TF2_WEIGHTS_NAME)):
# Load from a TF 2.0 checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, TF2_WEIGHTS_NAME)
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, TF2_WEIGHTS_INDEX_NAME)):
# Load from a sharded TF 2.0 checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, TF2_WEIGHTS_INDEX_NAME)
is_sharded = True
# At this stage we don't have a weight file so we will raise an error.
elif use_safetensors:
raise EnvironmentError(
f"Error no file named {SAFE_WEIGHTS_NAME} or {SAFE_WEIGHTS_INDEX_NAME} found in directory {pretrained_model_name_or_path}. "
f"Please make sure that the model has been saved with `safe_serialization=True` or do not "
f"set `use_safetensors=True`."
)
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, WEIGHTS_NAME)) or os.path.isfile(
os.path.join(pretrained_model_name_or_path, WEIGHTS_INDEX_NAME)
):
raise EnvironmentError(
f"Error no file named {TF2_WEIGHTS_NAME} or {SAFE_WEIGHTS_NAME} found in directory {pretrained_model_name_or_path} "
"but there is a file for PyTorch weights. Use `from_pt=True` to load this model from those "
"weights."
)
else:
raise EnvironmentError(
f"Error no file named {TF2_WEIGHTS_NAME}, {SAFE_WEIGHTS_NAME} or {WEIGHTS_NAME} found in directory "
f"{pretrained_model_name_or_path}."
)
elif os.path.isfile(pretrained_model_name_or_path):
archive_file = pretrained_model_name_or_path
is_local = True
elif os.path.isfile(pretrained_model_name_or_path + ".index"):
archive_file = pretrained_model_name_or_path + ".index"
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
filename = pretrained_model_name_or_path
resolved_archive_file = download_url(pretrained_model_name_or_path)
else:
# set correct filename
if from_pt:
filename = WEIGHTS_NAME
elif use_safetensors is not False:
filename = SAFE_WEIGHTS_NAME
else:
filename = TF2_WEIGHTS_NAME
try:
# Load from URL or cache if already cached
cached_file_kwargs = {
"cache_dir": cache_dir,
"force_download": force_download,
"proxies": proxies,
"resume_download": resume_download,
"local_files_only": local_files_only,
"token": token,
"user_agent": user_agent,
"revision": revision,
"subfolder": subfolder,
"_raise_exceptions_for_gated_repo": False,
"_raise_exceptions_for_missing_entries": False,
"_commit_hash": commit_hash,
}
resolved_archive_file = cached_file(pretrained_model_name_or_path, filename, **cached_file_kwargs)
# Since we set _raise_exceptions_for_missing_entries=False, we don't get an exception but a None
# result when internet is up, the repo and revision exist, but the file does not.
if resolved_archive_file is None and filename == SAFE_WEIGHTS_NAME:
# Did not find the safetensors file, let's fallback to TF.
# No support for sharded safetensors yet, so we'll raise an error if that's all we find.
filename = TF2_WEIGHTS_NAME
resolved_archive_file = cached_file(
pretrained_model_name_or_path, TF2_WEIGHTS_NAME, **cached_file_kwargs
)
if resolved_archive_file is None and filename == TF2_WEIGHTS_NAME:
# Maybe the checkpoint is sharded, we try to grab the index name in this case.
resolved_archive_file = cached_file(
pretrained_model_name_or_path, TF2_WEIGHTS_INDEX_NAME, **cached_file_kwargs
)
if resolved_archive_file is not None:
is_sharded = True
if resolved_archive_file is None and filename == WEIGHTS_NAME:
# Maybe the checkpoint is sharded, we try to grab the index name in this case.
resolved_archive_file = cached_file(
pretrained_model_name_or_path, WEIGHTS_INDEX_NAME, **cached_file_kwargs
)
if resolved_archive_file is not None:
is_sharded = True
if resolved_archive_file is None:
# Otherwise, maybe there is a PyTorch or Flax model file. We try those to give a helpful error
# message.
has_file_kwargs = {
"revision": revision,
"proxies": proxies,
"token": token,
}
if has_file(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME, **has_file_kwargs):
is_sharded = True
elif has_file(pretrained_model_name_or_path, WEIGHTS_NAME, **has_file_kwargs):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {TF2_WEIGHTS_NAME} but there is a file for PyTorch weights. Use `from_pt=True` to"
" load this model from those weights."
)
else:
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named {WEIGHTS_NAME},"
f" {TF2_WEIGHTS_NAME} or {TF_WEIGHTS_NAME}"
)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted
# to the original exception.
raise
except Exception:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load the model for '{pretrained_model_name_or_path}'. If you were trying to load it"
" from 'https://huggingface.co/models', make sure you don't have a local directory with the"
f" same name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a"
f" directory containing a file named {WEIGHTS_NAME}, {TF2_WEIGHTS_NAME} or {TF_WEIGHTS_NAME}"
)
if is_local:
logger.info(f"loading weights file {archive_file}")
resolved_archive_file = archive_file
filename = resolved_archive_file.split(os.path.sep)[-1]
else:
logger.info(f"loading weights file {filename} from cache at {resolved_archive_file}")
else:
resolved_archive_file = None
# We'll need to download and cache each checkpoint shard if the checkpoint is sharded.
if is_sharded:
# resolved_archive_file becomes a list of files that point to the different checkpoint shards in this case.
resolved_archive_file, sharded_metadata = get_checkpoint_shard_files(
pretrained_model_name_or_path,
resolved_archive_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
_commit_hash=commit_hash,
)
safetensors_from_pt = False
if filename == SAFE_WEIGHTS_NAME:
with safe_open(resolved_archive_file, framework="tf") as f:
safetensors_metadata = f.metadata()
if safetensors_metadata is None or safetensors_metadata.get("format") not in ["pt", "tf", "flax", "mlx"]:
raise OSError(
f"The safetensors archive passed at {resolved_archive_file} does not contain the valid metadata."
" Make sure you save your model with the `save_pretrained` method."
)
safetensors_from_pt = safetensors_metadata.get("format") == "pt"
elif filename == SAFE_WEIGHTS_INDEX_NAME:
with safe_open(resolved_archive_file[0], framework="tf") as f:
safetensors_metadata = f.metadata()
if safetensors_metadata is None or safetensors_metadata.get("format") not in ["pt", "tf", "flax", "mlx"]:
raise OSError(
f"The safetensors archive passed at {resolved_archive_file} does not contain the valid metadata."
" Make sure you save your model with the `save_pretrained` method."
)
safetensors_from_pt = safetensors_metadata.get("format") == "pt"
config.name_or_path = pretrained_model_name_or_path
# composed models, *e.g.* TFRag, require special treatment when it comes to loading
# pre-trained weights.
if cls._requires_load_weight_prefix and model_kwargs.get("name") is not None:
model_kwargs["load_weight_prefix"] = load_weight_prefix + "/" + model_kwargs.get("name")
# Instantiate model.
model = cls(config, *model_args, **model_kwargs)
if tf_to_pt_weight_rename is None and hasattr(model, "tf_to_pt_weight_rename"):
# TODO Matt: This is a temporary workaround to allow weight renaming, but requires a method
# to be defined for each class that requires a rename. We can probably just have a class-level
# dict and a single top-level method or something and cut down a lot of boilerplate code
tf_to_pt_weight_rename = model.tf_to_pt_weight_rename
if from_pt:
from .modeling_tf_pytorch_utils import load_pytorch_checkpoint_in_tf2_model
# Load from a PyTorch checkpoint
return load_pytorch_checkpoint_in_tf2_model(
model,
resolved_archive_file,
allow_missing_keys=True,
output_loading_info=output_loading_info,
_prefix=load_weight_prefix,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
)
# we might need to extend the variable scope for composite models
if load_weight_prefix is not None:
with tf.compat.v1.variable_scope(load_weight_prefix):
model.build_in_name_scope() # build the network with dummy inputs
else:
model.build_in_name_scope() # build the network with dummy inputs
if safetensors_from_pt and not is_sharded:
from .modeling_tf_pytorch_utils import load_pytorch_state_dict_in_tf2_model
with safe_open(resolved_archive_file, framework="tf") as safetensors_archive:
# Load from a PyTorch safetensors checkpoint
# We load in TF format here because PT weights often need to be transposed, and this is much
# faster on GPU. Loading as numpy and transposing on CPU adds several seconds to load times.
return load_pytorch_state_dict_in_tf2_model(
model,
safetensors_archive,
tf_inputs=False, # No need to build the model again
allow_missing_keys=True,
output_loading_info=output_loading_info,
_prefix=load_weight_prefix,
ignore_mismatched_sizes=ignore_mismatched_sizes,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
)
elif safetensors_from_pt:
from .modeling_tf_pytorch_utils import load_sharded_pytorch_safetensors_in_tf2_model
return load_sharded_pytorch_safetensors_in_tf2_model(
model,
resolved_archive_file,
tf_inputs=False,
allow_missing_keys=True,
output_loading_info=output_loading_info,
_prefix=load_weight_prefix,
ignore_mismatched_sizes=ignore_mismatched_sizes,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
)
# 'by_name' allow us to do transfer learning by skipping/adding layers
# see https://github.com/tensorflow/tensorflow/blob/00fad90125b18b80fe054de1055770cfb8fe4ba3/tensorflow/python/keras/engine/network.py#L1339-L1357
try:
if is_sharded:
for file in resolved_archive_file:
os.path.isfile(file), f"Error retrieving files {file}"
if filename == SAFE_WEIGHTS_INDEX_NAME:
missing_keys, unexpected_keys, mismatched_keys = load_tf_sharded_weights_from_safetensors(
model,
resolved_archive_file,
ignore_mismatched_sizes=ignore_mismatched_sizes,
_prefix=load_weight_prefix,
)
else:
missing_keys, unexpected_keys, mismatched_keys = load_tf_sharded_weights(
model,
resolved_archive_file,
ignore_mismatched_sizes=ignore_mismatched_sizes,
_prefix=load_weight_prefix,
)
else:
# Handles both H5 and safetensors
missing_keys, unexpected_keys, mismatched_keys = load_tf_weights(
model,
resolved_archive_file,
ignore_mismatched_sizes=ignore_mismatched_sizes,
_prefix=load_weight_prefix,
)
except OSError as e:
try:
with open(resolved_archive_file) as f:
if f.read().startswith("version"):
raise OSError(
"You seem to have cloned a repository without having git-lfs installed. Please install "
"git-lfs and run `git lfs install` followed by `git lfs pull` in the folder "
"you cloned."
)
else:
raise ValueError from e
except (UnicodeDecodeError, ValueError):
raise OSError(
"Unable to load weights from h5 file. "
"If you tried to load a TF 2.0 model from a PyTorch checkpoint, please set from_pt=True. "
)
if cls._keys_to_ignore_on_load_missing is not None:
for pat in cls._keys_to_ignore_on_load_missing:
missing_keys = [k for k in missing_keys if re.search(pat, k) is None]
if cls._keys_to_ignore_on_load_unexpected is not None:
for pat in cls._keys_to_ignore_on_load_unexpected:
unexpected_keys = [k for k in unexpected_keys if re.search(pat, k) is None]
if len(unexpected_keys) > 0:
logger.warning(
f"Some layers from the model checkpoint at {pretrained_model_name_or_path} were not used when"
f" initializing {model.__class__.__name__}: {unexpected_keys}\n- This IS expected if you are"
f" initializing {model.__class__.__name__} from the checkpoint of a model trained on another task or"
" with another architecture (e.g. initializing a BertForSequenceClassification model from a"
" BertForPreTraining model).\n- This IS NOT expected if you are initializing"
f" {model.__class__.__name__} from the checkpoint of a model that you expect to be exactly identical"
" (initializing a BertForSequenceClassification model from a BertForSequenceClassification model)."
)
else:
logger.warning(f"All model checkpoint layers were used when initializing {model.__class__.__name__}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some layers of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized: {missing_keys}\nYou should probably"
" TRAIN this model on a down-stream task to be able to use it for predictions and inference."
)
elif len(mismatched_keys) == 0:
logger.warning(
f"All the layers of {model.__class__.__name__} were initialized from the model checkpoint at"
f" {pretrained_model_name_or_path}.\nIf your task is similar to the task the model of the checkpoint"
f" was trained on, you can already use {model.__class__.__name__} for predictions without further"
" training."
)
if len(mismatched_keys) > 0:
mismatched_warning = "\n".join(
[
f"- {key}: found shape {shape1} in the checkpoint and {shape2} in the model instantiated"
for key, shape1, shape2 in mismatched_keys
]
)
logger.warning(
f"Some weights of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized because the shapes did not"
f" match:\n{mismatched_warning}\nYou should probably TRAIN this model on a down-stream task to be able"
" to use it for predictions and inference."
)
# If it is a model with generation capabilities, attempt to load the generation config
if model.can_generate():
try:
model.generation_config = GenerationConfig.from_pretrained(
pretrained_model_name_or_path,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
**kwargs,
)
except OSError:
logger.info(
"Generation config file not found, using a generation config created from the model config."
)
pass
if output_loading_info:
loading_info = {
"missing_keys": missing_keys,
"unexpected_keys": unexpected_keys,
"mismatched_keys": mismatched_keys,
}
return model, loading_info
return model
def push_to_hub(
self,
repo_id: str,
use_temp_dir: Optional[bool] = None,
commit_message: Optional[str] = None,
private: Optional[bool] = None,
max_shard_size: Optional[Union[int, str]] = "10GB",
token: Optional[Union[bool, str]] = None,
# (`use_auth_token` is deprecated: we have to keep it here as we don't have **kwargs)
use_auth_token: Optional[Union[bool, str]] = None,
create_pr: bool = False,
**base_model_card_args,
) -> str:
"""
Upload the model files to the 🤗 Model Hub while synchronizing a local clone of the repo in `repo_path_or_name`.
Parameters:
repo_id (`str`):
The name of the repository you want to push your model to. It should contain your organization name
when pushing to a given organization.
use_temp_dir (`bool`, *optional*):
Whether or not to use a temporary directory to store the files saved before they are pushed to the Hub.
Will default to `True` if there is no directory named like `repo_id`, `False` otherwise.
commit_message (`str`, *optional*):
Message to commit while pushing. Will default to `"Upload model"`.
private (`bool`, *optional*):
Whether or not the repository created should be private.
token (`bool` or `str`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated
when running `huggingface-cli login` (stored in `~/.huggingface`). Will default to `True` if `repo_url`
is not specified.
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
Only applicable for models. The maximum size for a checkpoint before being sharded. Checkpoints shard
will then be each of size lower than this size. If expressed as a string, needs to be digits followed
by a unit (like `"5MB"`).
create_pr (`bool`, *optional*, defaults to `False`):
Whether or not to create a PR with the uploaded files or directly commit.
Examples:
```python
from transformers import TFAutoModel
model = TFAutoModel.from_pretrained("google-bert/bert-base-cased")
# Push the model to your namespace with the name "my-finetuned-bert".
model.push_to_hub("my-finetuned-bert")
# Push the model to an organization with the name "my-finetuned-bert".
model.push_to_hub("huggingface/my-finetuned-bert")
```
"""
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if "repo_path_or_name" in base_model_card_args:
warnings.warn(
"The `repo_path_or_name` argument is deprecated and will be removed in v5 of Transformers. Use "
"`repo_id` instead."
)
repo_id = base_model_card_args.pop("repo_path_or_name")
# Deprecation warning will be sent after for repo_url and organization
repo_url = base_model_card_args.pop("repo_url", None)
organization = base_model_card_args.pop("organization", None)
if os.path.isdir(repo_id):
working_dir = repo_id
repo_id = repo_id.split(os.path.sep)[-1]
else:
working_dir = repo_id.split("/")[-1]
repo_id = self._create_repo(
repo_id, private=private, token=token, repo_url=repo_url, organization=organization
)
if use_temp_dir is None:
use_temp_dir = not os.path.isdir(working_dir)
with working_or_temp_dir(working_dir=working_dir, use_temp_dir=use_temp_dir) as work_dir:
files_timestamps = self._get_files_timestamps(work_dir)
# Save all files.
self.save_pretrained(work_dir, max_shard_size=max_shard_size)
if hasattr(self, "history") and hasattr(self, "create_model_card"):
# This is a Keras model and we might be able to fish out its History and make a model card out of it
base_model_card_args = {
"output_dir": work_dir,
"model_name": Path(repo_id).name,
}
base_model_card_args.update(base_model_card_args)
self.create_model_card(**base_model_card_args)
self._upload_modified_files(
work_dir,
repo_id,
files_timestamps,
commit_message=commit_message,
token=token,
create_pr=create_pr,
)
@classmethod
def register_for_auto_class(cls, auto_class="TFAutoModel"):
"""
Register this class with a given auto class. This should only be used for custom models as the ones in the
library are already mapped with an auto class.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"TFAutoModel"`):
The auto class to register this new model with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
class TFConv1D(keras.layers.Layer):
"""
1D-convolutional layer as defined by Radford et al. for OpenAI GPT (and also used in GPT-2).
Basically works like a linear layer but the weights are transposed.
Args:
nf (`int`):
The number of output features.
nx (`int`):
The number of input features.
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation to use to initialize the weights.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to the `__init__` of `keras.layers.Layer`.
"""
def __init__(self, nf, nx, initializer_range=0.02, **kwargs):
super().__init__(**kwargs)
self.nf = nf
self.nx = nx
self.initializer_range = initializer_range
def build(self, input_shape):
if self.built:
return
self.built = True
self.weight = self.add_weight(
"weight", shape=[self.nx, self.nf], initializer=get_initializer(self.initializer_range)
)
self.bias = self.add_weight("bias", shape=[1, self.nf], initializer=tf.zeros_initializer())
def call(self, x):
bz, sl = shape_list(x)[:2]
x = tf.reshape(x, [-1, self.nx])
x = tf.matmul(x, self.weight) + self.bias
x = tf.reshape(x, [bz, sl, self.nf])
return x
class TFSharedEmbeddings(keras.layers.Layer):
r"""
Construct shared token embeddings.
The weights of the embedding layer is usually shared with the weights of the linear decoder when doing language
modeling.
Args:
vocab_size (`int`):
The size of the vocabulary, e.g., the number of unique tokens.
hidden_size (`int`):
The size of the embedding vectors.
initializer_range (`float`, *optional*):
The standard deviation to use when initializing the weights. If no value is provided, it will default to
\\(1/\sqrt{hidden\_size}\\).
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to the `__init__` of `keras.layers.Layer`.
"""
# TODO (joao): flagged for delection due to embeddings refactor
def __init__(self, vocab_size: int, hidden_size: int, initializer_range: Optional[float] = None, **kwargs):
super().__init__(**kwargs)
self.vocab_size = vocab_size
self.hidden_size = hidden_size
self.initializer_range = hidden_size**-0.5 if initializer_range is None else initializer_range
warnings.warn(
"`TFSharedEmbeddings` is scheduled for deletion in v4.32, use `keras.layers.Embedding` instead.",
DeprecationWarning,
)
def build(self, input_shape):
"""
Build shared token embedding layer Shared weights logic adapted from
https://github.com/tensorflow/models/blob/a009f4fb9d2fc4949e32192a944688925ef78659/official/transformer/v2/embedding_layer.py#L24
"""
self.weight = self.add_weight(
"weight", shape=[self.vocab_size, self.hidden_size], initializer=get_initializer(self.initializer_range)
)
super().build(input_shape)
def get_config(self):
config = {
"vocab_size": self.vocab_size,
"hidden_size": self.hidden_size,
"initializer_range": self.initializer_range,
}
base_config = super().get_config()
return dict(list(base_config.items()) + list(config.items()))
def call(self, inputs: tf.Tensor, mode: str = "embedding") -> tf.Tensor:
"""
Get token embeddings of inputs or decode final hidden state.
Args:
inputs (`tf.Tensor`):
In embedding mode, should be an int64 tensor with shape `[batch_size, length]`.
In linear mode, should be a float tensor with shape `[batch_size, length, hidden_size]`.
mode (`str`, defaults to `"embedding"`):
A valid value is either `"embedding"` or `"linear"`, the first one indicates that the layer should be
used as an embedding layer, the second one that the layer should be used as a linear decoder.
Returns:
`tf.Tensor`: In embedding mode, the output is a float32 embedding tensor, with shape `[batch_size, length,
embedding_size]`.
In linear mode, the output is a float32 with shape `[batch_size, length, vocab_size]`.
Raises:
ValueError: if `mode` is not valid.
Shared weights logic is adapted from
[here](https://github.com/tensorflow/models/blob/a009f4fb9d2fc4949e32192a944688925ef78659/official/transformer/v2/embedding_layer.py#L24).
"""
if mode == "embedding":
return self._embedding(inputs)
elif mode == "linear":
return self._linear(inputs)
else:
raise ValueError(f"mode {mode} is not valid.")
def _embedding(self, input_ids):
"""Applies embedding based on inputs tensor."""
return tf.gather(self.weight, input_ids)
def _linear(self, inputs):
"""
Computes logits by running inputs through a linear layer.
Args:
inputs: A float32 tensor with shape [..., hidden_size]
Returns:
float32 tensor with shape [..., vocab_size].
"""
first_dims = shape_list(inputs)[:-1]
x = tf.reshape(inputs, [-1, self.hidden_size])
logits = tf.matmul(x, self.weight, transpose_b=True)
return tf.reshape(logits, first_dims + [self.vocab_size])
class TFSequenceSummary(keras.layers.Layer):
"""
Compute a single vector summary of a sequence hidden states.
Args:
config ([`PretrainedConfig`]):
The config used by the model. Relevant arguments in the config class of the model are (refer to the actual
config class of your model for the default values it uses):
- **summary_type** (`str`) -- The method to use to make this summary. Accepted values are:
- `"last"` -- Take the last token hidden state (like XLNet)
- `"first"` -- Take the first token hidden state (like Bert)
- `"mean"` -- Take the mean of all tokens hidden states
- `"cls_index"` -- Supply a Tensor of classification token position (GPT/GPT-2)
- `"attn"` -- Not implemented now, use multi-head attention
- **summary_use_proj** (`bool`) -- Add a projection after the vector extraction.
- **summary_proj_to_labels** (`bool`) -- If `True`, the projection outputs to `config.num_labels` classes
(otherwise to `config.hidden_size`).
- **summary_activation** (`Optional[str]`) -- Set to `"tanh"` to add a tanh activation to the output,
another string or `None` will add no activation.
- **summary_first_dropout** (`float`) -- Optional dropout probability before the projection and activation.
- **summary_last_dropout** (`float`)-- Optional dropout probability after the projection and activation.
initializer_range (`float`, defaults to 0.02): The standard deviation to use to initialize the weights.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to the `__init__` of `keras.layers.Layer`.
"""
def __init__(self, config: PretrainedConfig, initializer_range: float = 0.02, **kwargs):
super().__init__(**kwargs)
self.summary_type = config.summary_type if hasattr(config, "summary_use_proj") else "last"
if self.summary_type == "attn":
# We should use a standard multi-head attention module with absolute positional embedding for that.
# Cf. https://github.com/zihangdai/xlnet/blob/master/modeling.py#L253-L276
# We can probably just use the multi-head attention module of PyTorch >=1.1.0
raise NotImplementedError
self.has_summary = hasattr(config, "summary_use_proj") and config.summary_use_proj
if self.has_summary:
if hasattr(config, "summary_proj_to_labels") and config.summary_proj_to_labels and config.num_labels > 0:
num_classes = config.num_labels
else:
num_classes = config.hidden_size
self.summary = keras.layers.Dense(
num_classes, kernel_initializer=get_initializer(initializer_range), name="summary"
)
self.has_activation = False
activation_string = getattr(config, "summary_activation", None)
if activation_string is not None:
self.has_activation = True
self.activation = get_tf_activation(activation_string)
self.has_first_dropout = hasattr(config, "summary_first_dropout") and config.summary_first_dropout > 0
if self.has_first_dropout:
self.first_dropout = keras.layers.Dropout(config.summary_first_dropout)
self.has_last_dropout = hasattr(config, "summary_last_dropout") and config.summary_last_dropout > 0
if self.has_last_dropout:
self.last_dropout = keras.layers.Dropout(config.summary_last_dropout)
self.hidden_size = config.hidden_size
def call(self, inputs, cls_index=None, training=False):
if not isinstance(inputs, (dict, tuple, list)):
hidden_states = inputs
elif isinstance(inputs, (tuple, list)):
hidden_states = inputs[0]
cls_index = inputs[1] if len(inputs) > 1 else None
assert len(inputs) <= 2, "Too many inputs."
else:
hidden_states = inputs.get("hidden_states")
cls_index = inputs.get("cls_index", None)
if self.summary_type == "last":
output = hidden_states[:, -1]
elif self.summary_type == "first":
output = hidden_states[:, 0]
elif self.summary_type == "mean":
output = tf.reduce_mean(hidden_states, axis=1)
elif self.summary_type == "cls_index":
hidden_shape = shape_list(hidden_states) # e.g. [batch, num choices, seq length, hidden dims]
if cls_index is None:
cls_index = tf.fill(
hidden_shape[:-2], hidden_shape[-2] - 1
) # A tensor full of shape [batch] or [batch, num choices] full of sequence length
cls_shape = shape_list(cls_index)
if len(cls_shape) <= len(hidden_shape) - 2:
cls_index = tf.expand_dims(cls_index, axis=-1)
# else:
# cls_index = cls_index[..., tf.newaxis]
# cls_index = cls_index.expand((-1,) * (cls_index.dim()-1) + (hidden_states.size(-1),))
# shape of cls_index: (bsz, XX, 1, hidden_size) where XX are optional leading dim of hidden_states
output = tf.gather(hidden_states, cls_index, batch_dims=len(hidden_shape) - 2)
output = tf.squeeze(
output, axis=len(hidden_shape) - 2
) # shape of output: (batch, num choices, hidden_size)
elif self.summary_type == "attn":
raise NotImplementedError
if self.has_first_dropout:
output = self.first_dropout(output, training=training)
if self.has_summary:
output = self.summary(output)
if self.has_activation:
output = self.activation(output)
if self.has_last_dropout:
output = self.last_dropout(output, training=training)
return output
def build(self, input_shape):
if self.built:
return
self.built = True
if getattr(self, "summary", None) is not None:
with tf.name_scope("summary"):
self.summary.build(self.hidden_size)
def get_initializer(initializer_range: float = 0.02) -> keras.initializers.TruncatedNormal:
"""
Creates a `keras.initializers.TruncatedNormal` with the given range.
Args:
initializer_range (*float*, defaults to 0.02): Standard deviation of the initializer range.
Returns:
`keras.initializers.TruncatedNormal`: The truncated normal initializer.
"""
return keras.initializers.TruncatedNormal(stddev=initializer_range)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_attn_mask_utils.py | # Copyright 2023 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import dataclass
from typing import List, Optional, Tuple, Union
import torch
@dataclass
class AttentionMaskConverter:
"""
A utility attention mask class that allows one to:
- Create a causal 4d mask
- Create a causal 4d mask with slided window
- Convert a 2d attention mask (batch_size, query_length) to a 4d attention mask (batch_size, 1, query_length,
key_value_length) that can be multiplied with attention scores
Examples:
```python
>>> import torch
>>> from transformers.modeling_attn_mask_utils import AttentionMaskConverter
>>> converter = AttentionMaskConverter(True)
>>> converter.to_4d(torch.tensor([[0, 0, 0, 1, 1]]), 5, key_value_length=5, dtype=torch.float32)
tensor([[[[-3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38],
[-3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38],
[-3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38, -3.4028e+38],
[-3.4028e+38, -3.4028e+38, -3.4028e+38, 0.0000e+00, -3.4028e+38],
[-3.4028e+38, -3.4028e+38, -3.4028e+38, 0.0000e+00, 0.0000e+00]]]])
```
Parameters:
is_causal (`bool`):
Whether the attention mask should be a uni-directional (causal) or bi-directional mask.
sliding_window (`int`, *optional*):
Optionally, the sliding window masks can be created if `sliding_window` is defined to a positive integer.
"""
is_causal: bool
sliding_window: int
def __init__(self, is_causal: bool, sliding_window: Optional[int] = None):
self.is_causal = is_causal
self.sliding_window = sliding_window
if self.sliding_window is not None and self.sliding_window <= 0:
raise ValueError(
f"Make sure that when passing `sliding_window` that its value is a strictly positive integer, not `{self.sliding_window}`"
)
def to_causal_4d(
self,
batch_size: int,
query_length: int,
key_value_length: int,
dtype: torch.dtype,
device: Union[torch.device, "str"] = "cpu",
) -> Optional[torch.Tensor]:
"""
Creates a causal 4D mask of (bsz, head_dim=1, query_length, key_value_length) shape and adds large negative
bias to upper right hand triangular matrix (causal mask).
"""
if not self.is_causal:
raise ValueError(f"Please use `to_causal_4d` only if {self.__class__} has `is_causal` set to True.")
# If shape is not cached, create a new causal mask and cache it
input_shape = (batch_size, query_length)
past_key_values_length = key_value_length - query_length
# create causal mask
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
causal_4d_mask = None
if input_shape[-1] > 1 or self.sliding_window is not None:
causal_4d_mask = self._make_causal_mask(
input_shape,
dtype,
device=device,
past_key_values_length=past_key_values_length,
sliding_window=self.sliding_window,
)
return causal_4d_mask
def to_4d(
self,
attention_mask_2d: torch.Tensor,
query_length: int,
dtype: torch.dtype,
key_value_length: Optional[int] = None,
) -> torch.Tensor:
"""
Converts 2D attention mask to 4D attention mask by expanding mask to (bsz, head_dim=1, query_length,
key_value_length) shape and by adding a large negative bias to not-attended positions. If attention_mask is
causal, a causal mask will be added.
"""
input_shape = (attention_mask_2d.shape[0], query_length)
# create causal mask
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
causal_4d_mask = None
if (input_shape[-1] > 1 or self.sliding_window is not None) and self.is_causal:
if key_value_length is None:
raise ValueError(
"This attention mask converter is causal. Make sure to pass `key_value_length` to correctly create a causal mask."
)
past_key_values_length = key_value_length - query_length
causal_4d_mask = self._make_causal_mask(
input_shape,
dtype,
device=attention_mask_2d.device,
past_key_values_length=past_key_values_length,
sliding_window=self.sliding_window,
)
elif self.sliding_window is not None:
raise NotImplementedError("Sliding window is currently only implemented for causal masking")
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
expanded_attn_mask = self._expand_mask(attention_mask_2d, dtype, tgt_len=input_shape[-1]).to(
attention_mask_2d.device
)
if causal_4d_mask is not None:
expanded_attn_mask = causal_4d_mask.masked_fill(expanded_attn_mask.bool(), torch.finfo(dtype).min)
# expanded_attn_mask + causal_4d_mask can cause some overflow
expanded_4d_mask = expanded_attn_mask
return expanded_4d_mask
@staticmethod
def _make_causal_mask(
input_ids_shape: torch.Size,
dtype: torch.dtype,
device: torch.device,
past_key_values_length: int = 0,
sliding_window: Optional[int] = None,
):
"""
Make causal mask used for bi-directional self-attention.
"""
bsz, tgt_len = input_ids_shape
mask = torch.full((tgt_len, tgt_len), torch.finfo(dtype).min, device=device)
mask_cond = torch.arange(mask.size(-1), device=device)
mask.masked_fill_(mask_cond < (mask_cond + 1).view(mask.size(-1), 1), 0)
mask = mask.to(dtype)
if past_key_values_length > 0:
mask = torch.cat([torch.zeros(tgt_len, past_key_values_length, dtype=dtype, device=device), mask], dim=-1)
# add lower triangular sliding window mask if necessary
if sliding_window is not None:
diagonal = past_key_values_length - sliding_window - 1
context_mask = torch.tril(torch.ones_like(mask, dtype=torch.bool), diagonal=diagonal)
mask.masked_fill_(context_mask, torch.finfo(dtype).min)
return mask[None, None, :, :].expand(bsz, 1, tgt_len, tgt_len + past_key_values_length)
@staticmethod
def _expand_mask(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
"""
Expands attention_mask from `[bsz, seq_len]` to `[bsz, 1, tgt_seq_len, src_seq_len]`.
"""
bsz, src_len = mask.size()
tgt_len = tgt_len if tgt_len is not None else src_len
expanded_mask = mask[:, None, None, :].expand(bsz, 1, tgt_len, src_len).to(dtype)
inverted_mask = 1.0 - expanded_mask
return inverted_mask.masked_fill(inverted_mask.to(torch.bool), torch.finfo(dtype).min)
@staticmethod
def _unmask_unattended(
expanded_mask: torch.FloatTensor,
min_dtype: float,
):
# fmt: off
"""
Attend to all tokens in masked rows from the expanded attention mask, for example the relevant first rows when
using left padding. This is required by F.scaled_dot_product_attention memory-efficient attention path.
Details: https://github.com/pytorch/pytorch/issues/110213
`expanded_mask` is [bsz, num_masks, tgt_seq_len, src_seq_len] or [bsz, tgt_seq_len, src_seq_len].
`attention_mask` is [bsz, src_seq_len].
The dimension num_masks of `expanded_mask` is most often 1, but it can also be the number of heads in the case of alibi attention bias.
For example, if `expanded_mask` is (e.g. here left-padding case)
```
[[[[0, 0, 0],
[0, 0, 0],
[0, 0, 1]]],
[[[1, 0, 0],
[1, 1, 0],
[1, 1, 1]]],
[[[0, 0, 0],
[0, 1, 0],
[0, 1, 1]]]]
```
then the modified `expanded_mask` will be
```
[[[[1, 1, 1], <-- modified
[1, 1, 1], <-- modified
[0, 0, 1]]],
[[[1, 0, 0],
[1, 1, 0],
[1, 1, 1]]],
[[[1, 1, 1], <-- modified
[0, 1, 0],
[0, 1, 1]]]]
```
"""
# fmt: on
if expanded_mask.dtype == torch.bool:
raise ValueError(
"AttentionMaskConverter._unmask_unattended expects a float `expanded_mask`, got a BoolTensor."
)
return expanded_mask.mul(~torch.all(expanded_mask == min_dtype, dim=-1, keepdim=True))
@staticmethod
def _ignore_causal_mask_sdpa(
attention_mask: Optional[torch.Tensor],
inputs_embeds: torch.Tensor,
past_key_values_length: int,
sliding_window: Optional[int] = None,
is_training: bool = False,
) -> bool:
"""
Detects whether the optional user-specified attention_mask & the automatically created causal mask can be ignored in case PyTorch's SDPA is used, rather relying on SDPA's `is_causal` argument.
In case no token is masked in the `attention_mask` argument, if `query_length == 1` or
`key_value_length == query_length`, we rather rely on SDPA `is_causal` argument to use causal/non-causal masks,
allowing to dispatch to the flash attention kernel (that can otherwise not be used if a custom `attn_mask` is passed).
"""
batch_size, query_length = inputs_embeds.shape[0], inputs_embeds.shape[1]
key_value_length = query_length + past_key_values_length
is_tracing = (
torch.jit.is_tracing()
or isinstance(inputs_embeds, torch.fx.Proxy)
or (hasattr(torch, "_dynamo") and torch._dynamo.is_compiling())
)
ignore_causal_mask = False
if attention_mask is None:
# TODO: When tracing with TorchDynamo with fullgraph=True, the model is recompiled depending on the input shape, thus SDPA's `is_causal` argument is rightfully updated (see https://gist.github.com/fxmarty/1313f39037fc1c112508989628c57363). However, when using `torch.export` or
# or `torch.onnx.dynamo_export`, we must pass an example input, and `is_causal` behavior is hard-coded. If a user exports a model with q_len > 1, the exported model will hard-code `is_causal=True` which is in general wrong (see https://github.com/pytorch/pytorch/issues/108108).
# Thus, we only set `ignore_causal_mask = True` if the model is set to training.
#
# Besides, jit.trace can not handle the `q_len > 1` condition for `is_causal` (`TypeError: scaled_dot_product_attention(): argument 'is_causal' must be bool, not Tensor`).
if (
(is_training or not is_tracing)
and (query_length == 1 or key_value_length == query_length)
and (sliding_window is None or key_value_length < sliding_window)
):
ignore_causal_mask = True
elif sliding_window is None or key_value_length < sliding_window:
if len(attention_mask.shape) == 4:
expected_shape = (batch_size, 1, query_length, key_value_length)
if tuple(attention_mask.shape) != expected_shape:
raise ValueError(
f"Incorrect 4D attention_mask shape: {tuple(attention_mask.shape)}; expected: {expected_shape}."
)
elif (is_training or not is_tracing) and torch.all(attention_mask == 1):
if query_length == 1 or key_value_length == query_length:
# For query_length == 1, causal attention and bi-directional attention are the same.
ignore_causal_mask = True
# Unfortunately, for query_length > 1 and key_value_length != query_length, we cannot generally ignore the attention mask, as SDPA causal mask generation
# may be wrong. We will set `is_causal=False` in SDPA and rely on Transformers attention_mask instead, hence not setting it to None here.
# Reference: https://github.com/pytorch/pytorch/issues/108108
# TODO: maybe revisit this with https://github.com/pytorch/pytorch/pull/114823 in PyTorch 2.3.
return ignore_causal_mask
def _prepare_4d_causal_attention_mask(
attention_mask: Optional[torch.Tensor],
input_shape: Union[torch.Size, Tuple, List],
inputs_embeds: torch.Tensor,
past_key_values_length: int,
sliding_window: Optional[int] = None,
):
"""
Creates a causal 4D mask of shape `(batch_size, 1, query_length, key_value_length)` from a 2D mask of shape
`(batch_size, key_value_length)`
Args:
attention_mask (`torch.Tensor` or `None`):
A 2D attention mask of shape `(batch_size, key_value_length)`
input_shape (`tuple(int)` or `list(int)` or `torch.Size`):
The input shape should be a tuple that defines `(batch_size, query_length)`.
inputs_embeds (`torch.Tensor`):
The embedded inputs as a torch Tensor.
past_key_values_length (`int`):
The length of the key value cache.
sliding_window (`int`, *optional*):
If the model uses windowed attention, a sliding window should be passed.
"""
attn_mask_converter = AttentionMaskConverter(is_causal=True, sliding_window=sliding_window)
key_value_length = input_shape[-1] + past_key_values_length
# 4d mask is passed through the layers
if attention_mask is not None and len(attention_mask.shape) == 2:
attention_mask = attn_mask_converter.to_4d(
attention_mask, input_shape[-1], key_value_length=key_value_length, dtype=inputs_embeds.dtype
)
elif attention_mask is not None and len(attention_mask.shape) == 4:
expected_shape = (input_shape[0], 1, input_shape[1], key_value_length)
if tuple(attention_mask.shape) != expected_shape:
raise ValueError(
f"Incorrect 4D attention_mask shape: {tuple(attention_mask.shape)}; expected: {expected_shape}."
)
else:
# if the 4D mask has correct shape - invert it and fill with negative infinity
inverted_mask = 1.0 - attention_mask
attention_mask = inverted_mask.masked_fill(
inverted_mask.to(torch.bool), torch.finfo(inputs_embeds.dtype).min
)
else:
attention_mask = attn_mask_converter.to_causal_4d(
input_shape[0], input_shape[-1], key_value_length, dtype=inputs_embeds.dtype, device=inputs_embeds.device
)
return attention_mask
# Adapted from _prepare_4d_causal_attention_mask
def _prepare_4d_causal_attention_mask_for_sdpa(
attention_mask: Optional[torch.Tensor],
input_shape: Union[torch.Size, Tuple, List],
inputs_embeds: torch.Tensor,
past_key_values_length: int,
sliding_window: Optional[int] = None,
):
"""
Prepares the correct `attn_mask` argument to be used by `torch.nn.functional.scaled_dot_product_attention`.
In case no token is masked in the `attention_mask` argument, we simply set it to `None` for the cases `query_length == 1` and
`key_value_length == query_length`, and rely instead on SDPA `is_causal` argument to use causal/non-causal masks,
allowing to dispatch to the flash attention kernel (that can otherwise not be used if a custom `attn_mask` is passed).
"""
attn_mask_converter = AttentionMaskConverter(is_causal=True, sliding_window=sliding_window)
key_value_length = input_shape[-1] + past_key_values_length
# torch.jit.trace, symbolic_trace and torchdynamo with fullgraph=True are unable to capture the controlflow `is_causal=attention_mask is None and q_len > 1`
# used as an SDPA argument. We keep compatibility with these tracing tools by always using SDPA's `attn_mask` argument in case we are tracing.
# TODO: For dynamo, rather use a check on fullgraph=True once this is possible (https://github.com/pytorch/pytorch/pull/120400).
is_tracing = (
torch.jit.is_tracing()
or isinstance(inputs_embeds, torch.fx.Proxy)
or (hasattr(torch, "_dynamo") and torch._dynamo.is_compiling())
)
ignore_causal_mask = AttentionMaskConverter._ignore_causal_mask_sdpa(
attention_mask=attention_mask,
inputs_embeds=inputs_embeds,
past_key_values_length=past_key_values_length,
sliding_window=sliding_window,
)
if ignore_causal_mask:
expanded_4d_mask = None
elif attention_mask is None:
expanded_4d_mask = attn_mask_converter.to_causal_4d(
input_shape[0], input_shape[-1], key_value_length, dtype=inputs_embeds.dtype, device=inputs_embeds.device
)
else:
expanded_4d_mask = attn_mask_converter.to_4d(
attention_mask,
input_shape[-1],
dtype=inputs_embeds.dtype,
key_value_length=key_value_length,
)
# Attend to all tokens in masked rows from the causal_mask, for example the relevant first rows when
# using left padding. This is required by F.scaled_dot_product_attention memory-efficient attention path.
# Details: https://github.com/pytorch/pytorch/issues/110213
if not is_tracing and expanded_4d_mask.device.type == "cuda":
expanded_4d_mask = AttentionMaskConverter._unmask_unattended(
expanded_4d_mask, min_dtype=torch.finfo(inputs_embeds.dtype).min
)
return expanded_4d_mask
def _prepare_4d_attention_mask(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
"""
Creates a non-causal 4D mask of shape `(batch_size, 1, query_length, key_value_length)` from a 2D mask of shape
`(batch_size, key_value_length)`
Args:
mask (`torch.Tensor` or `None`):
A 2D attention mask of shape `(batch_size, key_value_length)`
dtype (`torch.dtype`):
The torch dtype the created mask shall have.
tgt_len (`int`):
The target length or query length the created mask shall have.
"""
return AttentionMaskConverter._expand_mask(mask=mask, dtype=dtype, tgt_len=tgt_len)
def _prepare_4d_attention_mask_for_sdpa(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
"""
Creates a non-causal 4D mask of shape `(batch_size, 1, query_length, key_value_length)` from a 2D mask of shape
`(batch_size, key_value_length)`
Args:
mask (`torch.Tensor` or `None`):
A 2D attention mask of shape `(batch_size, key_value_length)`
dtype (`torch.dtype`):
The torch dtype the created mask shall have.
tgt_len (`int`):
The target length or query length the created mask shall have.
"""
batch_size, key_value_length = mask.shape
tgt_len = tgt_len if tgt_len is not None else key_value_length
# torch.jit.trace, symbolic_trace and torchdynamo with fullgraph=True are unable to capture the controlflow `is_causal=attention_mask is None and q_len > 1`
# used as an SDPA argument. We keep compatibility with these tracing tools by always using SDPA's `attn_mask` argument in case we are tracing.
# TODO: For dynamo, rather use a check on fullgraph=True once this is possible (https://github.com/pytorch/pytorch/pull/120400).
is_tracing = (
torch.jit.is_tracing()
or isinstance(mask, torch.fx.Proxy)
or (hasattr(torch, "_dynamo") and torch._dynamo.is_compiling())
)
if not is_tracing and torch.all(mask == 1):
if tgt_len == 1:
# For query_length == 1, causal attention and bi-directional attention are the same.
return None
elif key_value_length == tgt_len:
return None
else:
# Unfortunately, for query_length > 1 and key_value_length != query_length, we can not generally ignore the attention mask, as SDPA causal mask generation
# may be wrong. We will set is_causal=False in SDPA and rely on Transformers attention_mask instead, hence not setting it to None here.
# Reference: https://github.com/pytorch/pytorch/issues/108108
return AttentionMaskConverter._expand_mask(mask=mask, dtype=dtype, tgt_len=tgt_len)
else:
return AttentionMaskConverter._expand_mask(mask=mask, dtype=dtype, tgt_len=tgt_len)
def _create_4d_causal_attention_mask(
input_shape: Union[torch.Size, Tuple, List],
dtype: torch.dtype,
device: torch.device,
past_key_values_length: int = 0,
sliding_window: Optional[int] = None,
) -> Optional[torch.Tensor]:
"""
Creates a causal 4D mask of shape `(batch_size, 1, query_length, key_value_length)`
Args:
input_shape (`tuple(int)` or `list(int)` or `torch.Size`):
The input shape should be a tuple that defines `(batch_size, query_length)`.
dtype (`torch.dtype`):
The torch dtype the created mask shall have.
device (`int`):
The torch device the created mask shall have.
sliding_window (`int`, *optional*):
If the model uses windowed attention, a sliding window should be passed.
"""
attn_mask_converter = AttentionMaskConverter(is_causal=True, sliding_window=sliding_window)
key_value_length = past_key_values_length + input_shape[-1]
attention_mask = attn_mask_converter.to_causal_4d(
input_shape[0], input_shape[-1], key_value_length, dtype=dtype, device=device
)
return attention_mask
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/convert_pytorch_checkpoint_to_tf2.py | # coding=utf-8
# Copyright 2018 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Convert pytorch checkpoints to TensorFlow"""
import argparse
import os
from . import (
AlbertConfig,
BartConfig,
BertConfig,
CamembertConfig,
CTRLConfig,
DistilBertConfig,
DPRConfig,
ElectraConfig,
FlaubertConfig,
GPT2Config,
LayoutLMConfig,
LxmertConfig,
OpenAIGPTConfig,
RobertaConfig,
T5Config,
TFAlbertForPreTraining,
TFBartForConditionalGeneration,
TFBartForSequenceClassification,
TFBertForPreTraining,
TFBertForQuestionAnswering,
TFBertForSequenceClassification,
TFCamembertForMaskedLM,
TFCTRLLMHeadModel,
TFDistilBertForMaskedLM,
TFDistilBertForQuestionAnswering,
TFDPRContextEncoder,
TFDPRQuestionEncoder,
TFDPRReader,
TFElectraForPreTraining,
TFFlaubertWithLMHeadModel,
TFGPT2LMHeadModel,
TFLayoutLMForMaskedLM,
TFLxmertForPreTraining,
TFLxmertVisualFeatureEncoder,
TFOpenAIGPTLMHeadModel,
TFRobertaForCausalLM,
TFRobertaForMaskedLM,
TFRobertaForSequenceClassification,
TFT5ForConditionalGeneration,
TFTransfoXLLMHeadModel,
TFWav2Vec2Model,
TFXLMRobertaForMaskedLM,
TFXLMWithLMHeadModel,
TFXLNetLMHeadModel,
TransfoXLConfig,
Wav2Vec2Config,
Wav2Vec2Model,
XLMConfig,
XLMRobertaConfig,
XLNetConfig,
is_torch_available,
load_pytorch_checkpoint_in_tf2_model,
)
from .utils import CONFIG_NAME, WEIGHTS_NAME, cached_file, logging
if is_torch_available():
import numpy as np
import torch
from . import (
AlbertForPreTraining,
BartForConditionalGeneration,
BertForPreTraining,
BertForQuestionAnswering,
BertForSequenceClassification,
CamembertForMaskedLM,
CTRLLMHeadModel,
DistilBertForMaskedLM,
DistilBertForQuestionAnswering,
DPRContextEncoder,
DPRQuestionEncoder,
DPRReader,
ElectraForPreTraining,
FlaubertWithLMHeadModel,
GPT2LMHeadModel,
LayoutLMForMaskedLM,
LxmertForPreTraining,
LxmertVisualFeatureEncoder,
OpenAIGPTLMHeadModel,
RobertaForMaskedLM,
RobertaForSequenceClassification,
T5ForConditionalGeneration,
TransfoXLLMHeadModel,
XLMRobertaForMaskedLM,
XLMWithLMHeadModel,
XLNetLMHeadModel,
)
from .pytorch_utils import is_torch_greater_or_equal_than_1_13
logging.set_verbosity_info()
MODEL_CLASSES = {
"bart": (
BartConfig,
TFBartForConditionalGeneration,
TFBartForSequenceClassification,
BartForConditionalGeneration,
),
"bert": (
BertConfig,
TFBertForPreTraining,
BertForPreTraining,
),
"google-bert/bert-large-uncased-whole-word-masking-finetuned-squad": (
BertConfig,
TFBertForQuestionAnswering,
BertForQuestionAnswering,
),
"google-bert/bert-large-cased-whole-word-masking-finetuned-squad": (
BertConfig,
TFBertForQuestionAnswering,
BertForQuestionAnswering,
),
"google-bert/bert-base-cased-finetuned-mrpc": (
BertConfig,
TFBertForSequenceClassification,
BertForSequenceClassification,
),
"dpr": (
DPRConfig,
TFDPRQuestionEncoder,
TFDPRContextEncoder,
TFDPRReader,
DPRQuestionEncoder,
DPRContextEncoder,
DPRReader,
),
"openai-community/gpt2": (
GPT2Config,
TFGPT2LMHeadModel,
GPT2LMHeadModel,
),
"xlnet": (
XLNetConfig,
TFXLNetLMHeadModel,
XLNetLMHeadModel,
),
"xlm": (
XLMConfig,
TFXLMWithLMHeadModel,
XLMWithLMHeadModel,
),
"xlm-roberta": (
XLMRobertaConfig,
TFXLMRobertaForMaskedLM,
XLMRobertaForMaskedLM,
),
"transfo-xl": (
TransfoXLConfig,
TFTransfoXLLMHeadModel,
TransfoXLLMHeadModel,
),
"openai-community/openai-gpt": (
OpenAIGPTConfig,
TFOpenAIGPTLMHeadModel,
OpenAIGPTLMHeadModel,
),
"roberta": (
RobertaConfig,
TFRobertaForCausalLM,
TFRobertaForMaskedLM,
RobertaForMaskedLM,
),
"layoutlm": (
LayoutLMConfig,
TFLayoutLMForMaskedLM,
LayoutLMForMaskedLM,
),
"FacebookAI/roberta-large-mnli": (
RobertaConfig,
TFRobertaForSequenceClassification,
RobertaForSequenceClassification,
),
"camembert": (
CamembertConfig,
TFCamembertForMaskedLM,
CamembertForMaskedLM,
),
"flaubert": (
FlaubertConfig,
TFFlaubertWithLMHeadModel,
FlaubertWithLMHeadModel,
),
"distilbert": (
DistilBertConfig,
TFDistilBertForMaskedLM,
DistilBertForMaskedLM,
),
"distilbert-base-distilled-squad": (
DistilBertConfig,
TFDistilBertForQuestionAnswering,
DistilBertForQuestionAnswering,
),
"lxmert": (
LxmertConfig,
TFLxmertForPreTraining,
LxmertForPreTraining,
),
"lxmert-visual-feature-encoder": (
LxmertConfig,
TFLxmertVisualFeatureEncoder,
LxmertVisualFeatureEncoder,
),
"Salesforce/ctrl": (
CTRLConfig,
TFCTRLLMHeadModel,
CTRLLMHeadModel,
),
"albert": (
AlbertConfig,
TFAlbertForPreTraining,
AlbertForPreTraining,
),
"t5": (
T5Config,
TFT5ForConditionalGeneration,
T5ForConditionalGeneration,
),
"electra": (
ElectraConfig,
TFElectraForPreTraining,
ElectraForPreTraining,
),
"wav2vec2": (
Wav2Vec2Config,
TFWav2Vec2Model,
Wav2Vec2Model,
),
}
def convert_pt_checkpoint_to_tf(
model_type, pytorch_checkpoint_path, config_file, tf_dump_path, compare_with_pt_model=False, use_cached_models=True
):
if model_type not in MODEL_CLASSES:
raise ValueError(f"Unrecognized model type, should be one of {list(MODEL_CLASSES.keys())}.")
config_class, model_class, pt_model_class, aws_config_map = MODEL_CLASSES[model_type]
# Initialise TF model
if config_file in aws_config_map:
config_file = cached_file(config_file, CONFIG_NAME, force_download=not use_cached_models)
config = config_class.from_json_file(config_file)
config.output_hidden_states = True
config.output_attentions = True
print(f"Building TensorFlow model from configuration: {config}")
tf_model = model_class(config)
# Load weights from tf checkpoint
if pytorch_checkpoint_path in aws_config_map.keys():
pytorch_checkpoint_path = cached_file(
pytorch_checkpoint_path, WEIGHTS_NAME, force_download=not use_cached_models
)
# Load PyTorch checkpoint in tf2 model:
tf_model = load_pytorch_checkpoint_in_tf2_model(tf_model, pytorch_checkpoint_path)
if compare_with_pt_model:
tfo = tf_model(tf_model.dummy_inputs, training=False) # build the network
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
state_dict = torch.load(
pytorch_checkpoint_path,
map_location="cpu",
**weights_only_kwarg,
)
pt_model = pt_model_class.from_pretrained(
pretrained_model_name_or_path=None, config=config, state_dict=state_dict
)
with torch.no_grad():
pto = pt_model(**pt_model.dummy_inputs)
np_pt = pto[0].numpy()
np_tf = tfo[0].numpy()
diff = np.amax(np.abs(np_pt - np_tf))
print(f"Max absolute difference between models outputs {diff}")
assert diff <= 2e-2, f"Error, model absolute difference is >2e-2: {diff}"
# Save pytorch-model
print(f"Save TensorFlow model to {tf_dump_path}")
tf_model.save_weights(tf_dump_path, save_format="h5")
def convert_all_pt_checkpoints_to_tf(
args_model_type,
tf_dump_path,
model_shortcut_names_or_path=None,
config_shortcut_names_or_path=None,
compare_with_pt_model=False,
use_cached_models=False,
remove_cached_files=False,
only_convert_finetuned_models=False,
):
if args_model_type is None:
model_types = list(MODEL_CLASSES.keys())
else:
model_types = [args_model_type]
for j, model_type in enumerate(model_types, start=1):
print("=" * 100)
print(f" Converting model type {j}/{len(model_types)}: {model_type}")
print("=" * 100)
if model_type not in MODEL_CLASSES:
raise ValueError(f"Unrecognized model type {model_type}, should be one of {list(MODEL_CLASSES.keys())}.")
config_class, model_class, pt_model_class, aws_model_maps, aws_config_map = MODEL_CLASSES[model_type]
if model_shortcut_names_or_path is None:
model_shortcut_names_or_path = list(aws_model_maps.keys())
if config_shortcut_names_or_path is None:
config_shortcut_names_or_path = model_shortcut_names_or_path
for i, (model_shortcut_name, config_shortcut_name) in enumerate(
zip(model_shortcut_names_or_path, config_shortcut_names_or_path), start=1
):
print("-" * 100)
if "-squad" in model_shortcut_name or "-mrpc" in model_shortcut_name or "-mnli" in model_shortcut_name:
if not only_convert_finetuned_models:
print(f" Skipping finetuned checkpoint {model_shortcut_name}")
continue
model_type = model_shortcut_name
elif only_convert_finetuned_models:
print(f" Skipping not finetuned checkpoint {model_shortcut_name}")
continue
print(
f" Converting checkpoint {i}/{len(aws_config_map)}: {model_shortcut_name} - model_type {model_type}"
)
print("-" * 100)
if config_shortcut_name in aws_config_map:
config_file = cached_file(config_shortcut_name, CONFIG_NAME, force_download=not use_cached_models)
else:
config_file = config_shortcut_name
if model_shortcut_name in aws_model_maps:
model_file = cached_file(model_shortcut_name, WEIGHTS_NAME, force_download=not use_cached_models)
else:
model_file = model_shortcut_name
if os.path.isfile(model_shortcut_name):
model_shortcut_name = "converted_model"
convert_pt_checkpoint_to_tf(
model_type=model_type,
pytorch_checkpoint_path=model_file,
config_file=config_file,
tf_dump_path=os.path.join(tf_dump_path, model_shortcut_name + "-tf_model.h5"),
compare_with_pt_model=compare_with_pt_model,
)
if remove_cached_files:
os.remove(config_file)
os.remove(model_file)
if __name__ == "__main__":
parser = argparse.ArgumentParser()
# Required parameters
parser.add_argument(
"--tf_dump_path", default=None, type=str, required=True, help="Path to the output Tensorflow dump file."
)
parser.add_argument(
"--model_type",
default=None,
type=str,
help=(
f"Model type selected in the list of {list(MODEL_CLASSES.keys())}. If not given, will download and "
"convert all the models from AWS."
),
)
parser.add_argument(
"--pytorch_checkpoint_path",
default=None,
type=str,
help=(
"Path to the PyTorch checkpoint path or shortcut name to download from AWS. "
"If not given, will download and convert all the checkpoints from AWS."
),
)
parser.add_argument(
"--config_file",
default=None,
type=str,
help=(
"The config json file corresponding to the pre-trained model. \n"
"This specifies the model architecture. If not given and "
"--pytorch_checkpoint_path is not given or is a shortcut name "
"use the configuration associated to the shortcut name on the AWS"
),
)
parser.add_argument(
"--compare_with_pt_model", action="store_true", help="Compare Tensorflow and PyTorch model predictions."
)
parser.add_argument(
"--use_cached_models",
action="store_true",
help="Use cached models if possible instead of updating to latest checkpoint versions.",
)
parser.add_argument(
"--remove_cached_files",
action="store_true",
help="Remove pytorch models after conversion (save memory when converting in batches).",
)
parser.add_argument("--only_convert_finetuned_models", action="store_true", help="Only convert finetuned models.")
args = parser.parse_args()
# if args.pytorch_checkpoint_path is not None:
# convert_pt_checkpoint_to_tf(args.model_type.lower(),
# args.pytorch_checkpoint_path,
# args.config_file if args.config_file is not None else args.pytorch_checkpoint_path,
# args.tf_dump_path,
# compare_with_pt_model=args.compare_with_pt_model,
# use_cached_models=args.use_cached_models)
# else:
convert_all_pt_checkpoints_to_tf(
args.model_type.lower() if args.model_type is not None else None,
args.tf_dump_path,
model_shortcut_names_or_path=[args.pytorch_checkpoint_path]
if args.pytorch_checkpoint_path is not None
else None,
config_shortcut_names_or_path=[args.config_file] if args.config_file is not None else None,
compare_with_pt_model=args.compare_with_pt_model,
use_cached_models=args.use_cached_models,
remove_cached_files=args.remove_cached_files,
only_convert_finetuned_models=args.only_convert_finetuned_models,
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/trainer_utils.py | # coding=utf-8
# Copyright 2020-present the HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
PyTorch-independent utilities for the Trainer class.
"""
import copy
import functools
import gc
import inspect
import os
import random
import re
import threading
import time
from typing import Any, Dict, List, NamedTuple, Optional, Tuple, Union
import numpy as np
from .utils import (
ExplicitEnum,
is_psutil_available,
is_tf_available,
is_torch_available,
is_torch_cuda_available,
is_torch_mlu_available,
is_torch_mps_available,
is_torch_npu_available,
is_torch_xla_available,
is_torch_xpu_available,
requires_backends,
)
if is_torch_available():
import torch
def seed_worker(_):
"""
Helper function to set worker seed during Dataloader initialization.
"""
worker_seed = torch.initial_seed() % 2**32
set_seed(worker_seed)
def enable_full_determinism(seed: int, warn_only: bool = False):
"""
Helper function for reproducible behavior during distributed training. See
- https://pytorch.org/docs/stable/notes/randomness.html for pytorch
- https://www.tensorflow.org/api_docs/python/tf/config/experimental/enable_op_determinism for tensorflow
"""
# set seed first
set_seed(seed)
if is_torch_available():
# Enable PyTorch deterministic mode. This potentially requires either the environment
# variable 'CUDA_LAUNCH_BLOCKING' or 'CUBLAS_WORKSPACE_CONFIG' to be set,
# depending on the CUDA version, so we set them both here
os.environ["CUDA_LAUNCH_BLOCKING"] = "1"
os.environ["CUBLAS_WORKSPACE_CONFIG"] = ":16:8"
torch.use_deterministic_algorithms(True, warn_only=warn_only)
# Enable CUDNN deterministic mode
torch.backends.cudnn.deterministic = True
torch.backends.cudnn.benchmark = False
if is_tf_available():
import tensorflow as tf
tf.config.experimental.enable_op_determinism()
def set_seed(seed: int, deterministic: bool = False):
"""
Helper function for reproducible behavior to set the seed in `random`, `numpy`, `torch` and/or `tf` (if installed).
Args:
seed (`int`):
The seed to set.
deterministic (`bool`, *optional*, defaults to `False`):
Whether to use deterministic algorithms where available. Can slow down training.
"""
random.seed(seed)
np.random.seed(seed)
if is_torch_available():
torch.manual_seed(seed)
torch.cuda.manual_seed_all(seed)
# ^^ safe to call this function even if cuda is not available
if deterministic:
torch.use_deterministic_algorithms(True)
if is_torch_mlu_available():
torch.mlu.manual_seed_all(seed)
if is_torch_npu_available():
torch.npu.manual_seed_all(seed)
if is_torch_xpu_available():
torch.xpu.manual_seed_all(seed)
if is_tf_available():
import tensorflow as tf
tf.random.set_seed(seed)
if deterministic:
tf.config.experimental.enable_op_determinism()
def neftune_post_forward_hook(module, input, output):
"""
Implements the NEFTune forward pass for the model using forward hooks. Note this works only for torch.nn.Embedding
layers. This method is slightly adapted from the original source code that can be found here:
https://github.com/neelsjain/NEFTune Simply add it to your model as follows:
```python
model = ...
model.embed_tokens.neftune_noise_alpha = 0.1
model.embed_tokens.register_forward_hook(neftune_post_forward_hook)
```
Args:
module (`torch.nn.Module`):
The embedding module where the hook is attached. Note that you need to set `module.neftune_noise_alpha` to
the desired noise alpha value.
input (`torch.Tensor`):
The input tensor to the model.
output (`torch.Tensor`):
The output tensor of the model (i.e. the embeddings).
"""
if module.training:
dims = torch.tensor(output.size(1) * output.size(2))
mag_norm = module.neftune_noise_alpha / torch.sqrt(dims)
output = output + torch.zeros_like(output).uniform_(-mag_norm, mag_norm)
return output
class EvalPrediction:
"""
Evaluation output (always contains labels), to be used to compute metrics.
Parameters:
predictions (`np.ndarray`): Predictions of the model.
label_ids (`np.ndarray`): Targets to be matched.
inputs (`np.ndarray`, *optional*):
"""
def __init__(
self,
predictions: Union[np.ndarray, Tuple[np.ndarray]],
label_ids: Union[np.ndarray, Tuple[np.ndarray]],
inputs: Optional[Union[np.ndarray, Tuple[np.ndarray]]] = None,
):
self.predictions = predictions
self.label_ids = label_ids
self.inputs = inputs
def __iter__(self):
if self.inputs is not None:
return iter((self.predictions, self.label_ids, self.inputs))
else:
return iter((self.predictions, self.label_ids))
def __getitem__(self, idx):
if idx < 0 or idx > 2:
raise IndexError("tuple index out of range")
if idx == 2 and self.inputs is None:
raise IndexError("tuple index out of range")
if idx == 0:
return self.predictions
elif idx == 1:
return self.label_ids
elif idx == 2:
return self.inputs
class EvalLoopOutput(NamedTuple):
predictions: Union[np.ndarray, Tuple[np.ndarray]]
label_ids: Optional[Union[np.ndarray, Tuple[np.ndarray]]]
metrics: Optional[Dict[str, float]]
num_samples: Optional[int]
class PredictionOutput(NamedTuple):
predictions: Union[np.ndarray, Tuple[np.ndarray]]
label_ids: Optional[Union[np.ndarray, Tuple[np.ndarray]]]
metrics: Optional[Dict[str, float]]
class TrainOutput(NamedTuple):
global_step: int
training_loss: float
metrics: Dict[str, float]
PREFIX_CHECKPOINT_DIR = "checkpoint"
_re_checkpoint = re.compile(r"^" + PREFIX_CHECKPOINT_DIR + r"\-(\d+)$")
def get_last_checkpoint(folder):
content = os.listdir(folder)
checkpoints = [
path
for path in content
if _re_checkpoint.search(path) is not None and os.path.isdir(os.path.join(folder, path))
]
if len(checkpoints) == 0:
return
return os.path.join(folder, max(checkpoints, key=lambda x: int(_re_checkpoint.search(x).groups()[0])))
class IntervalStrategy(ExplicitEnum):
NO = "no"
STEPS = "steps"
EPOCH = "epoch"
class EvaluationStrategy(ExplicitEnum):
NO = "no"
STEPS = "steps"
EPOCH = "epoch"
class HubStrategy(ExplicitEnum):
END = "end"
EVERY_SAVE = "every_save"
CHECKPOINT = "checkpoint"
ALL_CHECKPOINTS = "all_checkpoints"
class BestRun(NamedTuple):
"""
The best run found by a hyperparameter search (see [`~Trainer.hyperparameter_search`]).
Parameters:
run_id (`str`):
The id of the best run (if models were saved, the corresponding checkpoint will be in the folder ending
with run-{run_id}).
objective (`float`):
The objective that was obtained for this run.
hyperparameters (`Dict[str, Any]`):
The hyperparameters picked to get this run.
run_summary (`Optional[Any]`):
A summary of tuning experiments. `ray.tune.ExperimentAnalysis` object for Ray backend.
"""
run_id: str
objective: Union[float, List[float]]
hyperparameters: Dict[str, Any]
run_summary: Optional[Any] = None
def default_compute_objective(metrics: Dict[str, float]) -> float:
"""
The default objective to maximize/minimize when doing an hyperparameter search. It is the evaluation loss if no
metrics are provided to the [`Trainer`], the sum of all metrics otherwise.
Args:
metrics (`Dict[str, float]`): The metrics returned by the evaluate method.
Return:
`float`: The objective to minimize or maximize
"""
metrics = copy.deepcopy(metrics)
loss = metrics.pop("eval_loss", None)
_ = metrics.pop("epoch", None)
# Remove speed metrics
speed_metrics = [
m
for m in metrics.keys()
if m.endswith("_runtime") or m.endswith("_per_second") or m.endswith("_compilation_time")
]
for sm in speed_metrics:
_ = metrics.pop(sm, None)
return loss if len(metrics) == 0 else sum(metrics.values())
def default_hp_space_optuna(trial) -> Dict[str, float]:
from .integrations import is_optuna_available
assert is_optuna_available(), "This function needs Optuna installed: `pip install optuna`"
return {
"learning_rate": trial.suggest_float("learning_rate", 1e-6, 1e-4, log=True),
"num_train_epochs": trial.suggest_int("num_train_epochs", 1, 5),
"seed": trial.suggest_int("seed", 1, 40),
"per_device_train_batch_size": trial.suggest_categorical("per_device_train_batch_size", [4, 8, 16, 32, 64]),
}
def default_hp_space_ray(trial) -> Dict[str, float]:
from .integrations import is_ray_tune_available
assert is_ray_tune_available(), "This function needs ray installed: `pip install ray[tune]`"
from ray import tune
return {
"learning_rate": tune.loguniform(1e-6, 1e-4),
"num_train_epochs": tune.choice(list(range(1, 6))),
"seed": tune.uniform(1, 40),
"per_device_train_batch_size": tune.choice([4, 8, 16, 32, 64]),
}
def default_hp_space_sigopt(trial):
return [
{"bounds": {"min": 1e-6, "max": 1e-4}, "name": "learning_rate", "type": "double", "transformamtion": "log"},
{"bounds": {"min": 1, "max": 6}, "name": "num_train_epochs", "type": "int"},
{"bounds": {"min": 1, "max": 40}, "name": "seed", "type": "int"},
{
"categorical_values": ["4", "8", "16", "32", "64"],
"name": "per_device_train_batch_size",
"type": "categorical",
},
]
def default_hp_space_wandb(trial) -> Dict[str, float]:
from .integrations import is_wandb_available
if not is_wandb_available():
raise ImportError("This function needs wandb installed: `pip install wandb`")
return {
"method": "random",
"metric": {"name": "objective", "goal": "minimize"},
"parameters": {
"learning_rate": {"distribution": "uniform", "min": 1e-6, "max": 1e-4},
"num_train_epochs": {"distribution": "int_uniform", "min": 1, "max": 6},
"seed": {"distribution": "int_uniform", "min": 1, "max": 40},
"per_device_train_batch_size": {"values": [4, 8, 16, 32, 64]},
},
}
class HPSearchBackend(ExplicitEnum):
OPTUNA = "optuna"
RAY = "ray"
SIGOPT = "sigopt"
WANDB = "wandb"
def is_main_process(local_rank):
"""
Whether or not the current process is the local process, based on `xm.get_ordinal()` (for TPUs) first, then on
`local_rank`.
"""
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
return xm.get_ordinal() == 0
return local_rank in [-1, 0]
def total_processes_number(local_rank):
"""
Return the number of processes launched in parallel. Works with `torch.distributed` and TPUs.
"""
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
return xm.xrt_world_size()
elif local_rank != -1 and is_torch_available():
import torch
return torch.distributed.get_world_size()
return 1
def speed_metrics(split, start_time, num_samples=None, num_steps=None, num_tokens=None):
"""
Measure and return speed performance metrics.
This function requires a time snapshot `start_time` before the operation to be measured starts and this function
should be run immediately after the operation to be measured has completed.
Args:
- split: name to prefix metric (like train, eval, test...)
- start_time: operation start time
- num_samples: number of samples processed
- num_steps: number of steps processed
- num_tokens: number of tokens processed
"""
runtime = time.time() - start_time
result = {f"{split}_runtime": round(runtime, 4)}
if runtime == 0:
return result
if num_samples is not None:
samples_per_second = num_samples / runtime
result[f"{split}_samples_per_second"] = round(samples_per_second, 3)
if num_steps is not None:
steps_per_second = num_steps / runtime
result[f"{split}_steps_per_second"] = round(steps_per_second, 3)
if num_tokens is not None:
tokens_per_second = num_tokens / runtime
result[f"{split}_tokens_per_second"] = round(tokens_per_second, 3)
return result
class SchedulerType(ExplicitEnum):
LINEAR = "linear"
COSINE = "cosine"
COSINE_WITH_RESTARTS = "cosine_with_restarts"
POLYNOMIAL = "polynomial"
CONSTANT = "constant"
CONSTANT_WITH_WARMUP = "constant_with_warmup"
INVERSE_SQRT = "inverse_sqrt"
REDUCE_ON_PLATEAU = "reduce_lr_on_plateau"
COSINE_WITH_MIN_LR = "cosine_with_min_lr"
WARMUP_STABLE_DECAY = "warmup_stable_decay"
class TrainerMemoryTracker:
"""
A helper class that tracks cpu and gpu memory.
This class will silently skip unless `psutil` is available. Install with `pip install psutil`.
When a stage completes, it can pass metrics dict to update with the memory metrics gathered during this stage.
Example :
```python
self._memory_tracker = TrainerMemoryTracker(self.args.skip_memory_metrics)
self._memory_tracker.start()
# code ...
metrics = {"train_runtime": 10.5}
self._memory_tracker.stop_and_update_metrics(metrics)
```
At the moment GPU tracking is only for `pytorch`, but can be extended to support `tensorflow`.
To understand this class' intricacies please read the documentation of [`~Trainer.log_metrics`].
"""
# map trainer methods to metrics prefix
stages = {
"__init__": "init",
"train": "train",
"_inner_training_loop": "train",
"evaluate": "eval",
"predict": "test",
}
def __init__(self, skip_memory_metrics=False):
self.skip_memory_metrics = skip_memory_metrics
if not is_psutil_available():
# soft dependency on psutil
self.skip_memory_metrics = True
if self.skip_memory_metrics:
return
import psutil # noqa
if is_torch_cuda_available() or is_torch_mlu_available():
import torch
self.torch = torch
self.gpu = {}
elif is_torch_mps_available():
import torch
self.torch = torch
self.gpu = {}
elif is_torch_xpu_available():
import torch
self.torch = torch
self.gpu = {}
elif is_torch_npu_available():
import torch
self.torch = torch
self.gpu = {}
else:
self.torch = None
self.process = psutil.Process()
self.cur_stage = None
self.cpu = {}
self.init_reported = False
def derive_stage(self):
"""derives the stage/caller name automatically"""
caller = inspect.currentframe().f_back.f_back.f_code.co_name
if caller in self.stages:
return self.stages[caller]
else:
raise ValueError(
f"was called from {caller}, but only expect to be called from one of {self.stages.keys()}"
)
def cpu_mem_used(self):
"""get resident set size memory for the current process"""
return self.process.memory_info().rss
def peak_monitor_func(self):
self.cpu_mem_used_peak = -1
while True:
self.cpu_mem_used_peak = max(self.cpu_mem_used(), self.cpu_mem_used_peak)
# can't sleep or will not catch the peak right (this comment is here on purpose)
# time.sleep(0.001) # 1msec
if not self.peak_monitoring:
break
def start(self):
"""start tracking for the caller's stage"""
if self.skip_memory_metrics:
return
stage = self.derive_stage()
# deal with nested calls of eval during train - simply ignore those
if self.cur_stage is not None and self.cur_stage != stage:
return
self.cur_stage = stage
gc.collect()
if self.torch is not None:
if torch.cuda.is_available():
self.torch.cuda.reset_peak_memory_stats()
self.torch.cuda.empty_cache()
elif is_torch_mlu_available():
self.torch.mlu.reset_peak_memory_stats()
self.torch.mlu.empty_cache()
elif is_torch_xpu_available():
self.torch.xpu.reset_peak_memory_stats()
self.torch.xpu.empty_cache()
elif is_torch_npu_available():
self.torch.npu.reset_peak_memory_stats()
self.torch.npu.empty_cache()
elif is_torch_mps_available():
self.torch.mps.empty_cache()
# gpu
if self.torch is not None:
if torch.cuda.is_available():
self.gpu_mem_used_at_start = self.torch.cuda.memory_allocated()
elif is_torch_mlu_available():
self.gpu_mem_used_at_start = self.torch.mlu.memory_allocated()
elif is_torch_xpu_available():
self.gpu_mem_used_at_start = self.torch.xpu.memory_allocated()
elif is_torch_npu_available():
self.gpu_mem_used_at_start = self.torch.npu.memory_allocated()
elif is_torch_mps_available():
self.gpu_mem_used_at_start = self.torch.mps.current_allocated_memory()
# cpu
self.cpu_mem_used_at_start = self.cpu_mem_used()
self.peak_monitoring = True
peak_monitor_thread = threading.Thread(target=self.peak_monitor_func)
peak_monitor_thread.daemon = True
peak_monitor_thread.start()
def stop(self, stage):
"""stop tracking for the passed stage"""
# deal with nested calls of eval during train - simply ignore those
if self.cur_stage is not None and self.cur_stage != stage:
return
# this sends a signal to peak_monitor_func to complete its loop
self.peak_monitoring = False
# first ensure all objects get collected and their memory is freed
gc.collect()
if self.torch is not None:
if torch.cuda.is_available():
self.torch.cuda.empty_cache()
elif is_torch_mlu_available():
self.torch.mlu.empty_cache()
elif is_torch_xpu_available():
self.torch.xpu.empty_cache()
elif is_torch_npu_available():
self.torch.npu.empty_cache()
elif is_torch_mps_available():
self.torch.mps.empty_cache()
# concepts:
# - alloc_delta: the difference of allocated memory between the end and the start
# - peaked_delta: the difference between the peak memory and the current memory
# in order to know how much memory the measured code consumed one needs to sum these two
# gpu
if self.torch is not None:
if torch.cuda.is_available():
self.gpu_mem_used_now = self.torch.cuda.memory_allocated()
self.gpu_mem_used_peak = self.torch.cuda.max_memory_allocated()
elif is_torch_mlu_available():
self.gpu_mem_used_now = self.torch.mlu.memory_allocated()
self.gpu_mem_used_peak = self.torch.mlu.max_memory_allocated()
elif is_torch_xpu_available():
self.gpu_mem_used_now = self.torch.xpu.memory_allocated()
self.gpu_mem_used_peak = self.torch.xpu.max_memory_allocated()
elif is_torch_npu_available():
self.gpu_mem_used_now = self.torch.npu.memory_allocated()
self.gpu_mem_used_peak = self.torch.npu.max_memory_allocated()
elif is_torch_mps_available():
self.gpu_mem_used_now = self.torch.mps.current_allocated_memory()
# self.torch.mps.max_memory_allocated() does not exist yet
self.gpu_mem_used_peak = None
else:
raise ValueError("No available GPU device found!")
self.gpu[self.cur_stage] = {
"begin": self.gpu_mem_used_at_start,
"end": self.gpu_mem_used_now,
"alloc": (self.gpu_mem_used_now - self.gpu_mem_used_at_start),
}
if self.gpu_mem_used_peak is not None:
self.gpu[self.cur_stage]["peaked"] = max(0, self.gpu_mem_used_peak - self.gpu_mem_used_now)
else:
self.gpu[self.cur_stage]["peaked"] = "Not available"
# cpu
self.cpu_mem_used_now = self.cpu_mem_used()
self.cpu[self.cur_stage] = {
"begin": self.cpu_mem_used_at_start,
"end": self.cpu_mem_used_now,
"alloc": (self.cpu_mem_used_now - self.cpu_mem_used_at_start),
"peaked": max(0, self.cpu_mem_used_peak - self.cpu_mem_used_now),
}
# reset - cycle finished
self.cur_stage = None
def update_metrics(self, stage, metrics):
"""updates the metrics"""
if self.skip_memory_metrics:
return
# deal with nested calls of eval during train - simply ignore those
if self.cur_stage is not None and self.cur_stage != stage:
return
# since we don't have a way to return init metrics, we push them into the first of train/val/predict
stages = [stage]
if not self.init_reported:
stages.insert(0, "init")
self.init_reported = True
for stage in stages:
for t in ["alloc", "peaked"]:
if stage in self.cpu and t in self.cpu[stage]:
metrics[f"{stage}_mem_cpu_{t}_delta"] = self.cpu[stage][t]
if self.torch is not None and stage in self.gpu and t in self.gpu[stage]:
metrics[f"{stage}_mem_gpu_{t}_delta"] = self.gpu[stage][t]
# if we need additional debug info, enable the following
# for t in ["begin", "end"]:
# if stage in self.cpu and t in self.cpu[stage]:
# metrics[f"{stage}_mem_cpu_{t}"] = self.cpu[stage][t]
# if self.torch is not None and stage in self.gpu and t in self.gpu[stage]:
# metrics[f"{stage}_mem_gpu_{t}"] = self.gpu[stage][t]
# since memory can be allocated before init, and it might be difficult to track overall
# memory usage, in particular for GPU, let's report memory usage at the point init was called
if stages[0] == "init":
metrics["before_init_mem_cpu"] = self.cpu["init"]["begin"]
if self.torch is not None:
metrics["before_init_mem_gpu"] = self.gpu["init"]["begin"]
# if we also wanted to report any additional memory allocations in between init and
# whatever the next stage was we could also report this:
# if self.cpu["init"]["end"] != self.cpu[stage]["begin"]:
# metrics[f"after_init_mem_cpu_delta"] = self.cpu[stage]["begin"] - self.cpu["init"]["end"]
# if self.torch is not None and self.gpu["init"]["end"] != self.gpu[stage]["begin"]:
# metrics[f"after_init_mem_gpu_delta"] = self.gpu[stage]["begin"] - self.gpu["init"]["end"]
def stop_and_update_metrics(self, metrics=None):
"""combine stop and metrics update in one call for simpler code"""
if self.skip_memory_metrics:
return
stage = self.derive_stage()
self.stop(stage)
# init doesn't have metrics to update so we just save that data for later stages to retrieve
if metrics is not None:
self.update_metrics(stage, metrics)
def has_length(dataset):
"""
Checks if the dataset implements __len__() and it doesn't raise an error
"""
try:
return len(dataset) is not None
except TypeError:
# TypeError: len() of unsized object
return False
def denumpify_detensorize(metrics):
"""
Recursively calls `.item()` on the element of the dictionary passed
"""
if isinstance(metrics, (list, tuple)):
return type(metrics)(denumpify_detensorize(m) for m in metrics)
elif isinstance(metrics, dict):
return type(metrics)({k: denumpify_detensorize(v) for k, v in metrics.items()})
elif isinstance(metrics, np.generic):
return metrics.item()
elif is_torch_available() and isinstance(metrics, torch.Tensor) and metrics.numel() == 1:
return metrics.item()
return metrics
def number_of_arguments(func):
"""
Return the number of arguments of the passed function, even if it's a partial function.
"""
if isinstance(func, functools.partial):
total_args = len(inspect.signature(func.func).parameters)
return total_args - len(func.args) - len(func.keywords)
return len(inspect.signature(func).parameters)
def find_executable_batch_size(
function: callable = None, starting_batch_size: int = 128, auto_find_batch_size: bool = False
):
"""
Args:
A basic decorator that will try to execute `function`. If it fails from exceptions related to out-of-memory or
CUDNN, the batch size is cut in half and passed to `function`. `function` must take in a `batch_size` parameter as
its first argument.
function (`callable`, *optional*)
A function to wrap
starting_batch_size (`int`, *optional*)
The batch size to try and fit into memory
auto_find_batch_size (`bool`, *optional*)
If False, will just execute `function`
"""
if function is None:
return functools.partial(
find_executable_batch_size,
starting_batch_size=starting_batch_size,
auto_find_batch_size=auto_find_batch_size,
)
if auto_find_batch_size:
requires_backends(find_executable_batch_size, "accelerate")
from accelerate.utils import find_executable_batch_size as accelerate_find_executable_batch_size
return accelerate_find_executable_batch_size(function=function, starting_batch_size=starting_batch_size)
return functools.partial(function, batch_size=starting_batch_size)
class FSDPOption(ExplicitEnum):
FULL_SHARD = "full_shard"
SHARD_GRAD_OP = "shard_grad_op"
NO_SHARD = "no_shard"
HYBRID_SHARD = "hybrid_shard"
HYBRID_SHARD_ZERO2 = "hybrid_shard_zero2"
OFFLOAD = "offload"
AUTO_WRAP = "auto_wrap"
class RemoveColumnsCollator:
"""Wrap the data collator to remove unused columns before they are passed to the collator."""
def __init__(
self,
data_collator,
signature_columns,
logger=None,
model_name: Optional[str] = None,
description: Optional[str] = None,
):
self.data_collator = data_collator
self.signature_columns = signature_columns
self.logger = logger
self.description = description
self.model_name = model_name
self.message_logged = False
def _remove_columns(self, feature: dict) -> dict:
if not isinstance(feature, dict):
return feature
if not self.message_logged and self.logger and self.model_name:
ignored_columns = list(set(feature.keys()) - set(self.signature_columns))
if len(ignored_columns) > 0:
dset_description = "" if self.description is None else f"in the {self.description} set"
self.logger.info(
f"The following columns {dset_description} don't have a corresponding argument in "
f"`{self.model_name}.forward` and have been ignored: {', '.join(ignored_columns)}."
f" If {', '.join(ignored_columns)} are not expected by `{self.model_name}.forward`, "
" you can safely ignore this message."
)
self.message_logged = True
return {k: v for k, v in feature.items() if k in self.signature_columns}
def __call__(self, features: List[dict]):
features = [self._remove_columns(feature) for feature in features]
return self.data_collator(features)
def check_target_module_exists(optim_target_modules, key: str, return_is_regex: bool = False):
"""A helper method to check if the passed module's key name matches any of the target modules in the optim_target_modules.
Args:
optim_target_modules (`Union[str, List[str]]`):
A list of strings to try to match. Can be also a full string.
key (`str`):
A key to search any matches in optim_target_modules
return_is_regex (`bool`):
If set to `True`, the method will return whether the passed `optim_target_modules`
is a regex or not.
Returns:
`bool` : True of match object if key matches any target modules from config, False or
None if no match found
`bool` : If the matched target module is a regex to silence out the warnings in Trainer
for extra modules being found (only if `target_module_found=True` for an array of regex).
"""
target_module_found = False
is_regex = False
if isinstance(optim_target_modules, str):
target_module_found = bool(re.fullmatch(optim_target_modules, key))
is_regex = True if not optim_target_modules == key else False
elif key in optim_target_modules: # from here, target_module_found must be a list of str
# this module is specified directly in target_modules
target_module_found = True
elif any(target_key in key for target_key in optim_target_modules):
target_module_found = True
elif any(bool(re.fullmatch(optim_target_module, key)) for optim_target_module in optim_target_modules):
target_module_found = True
is_regex = True
if return_is_regex:
return target_module_found, is_regex
return target_module_found
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/deepspeed.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Integration with Deepspeed - kept for backward compatiblity, if you plan to make any edit, make sure to modify the file
in `integrations/deepspeed` instead.
Check: https://github.com/huggingface/transformers/pull/25599
"""
import warnings
warnings.warn(
"transformers.deepspeed module is deprecated and will be removed in a future version. Please import deepspeed modules directly from transformers.integrations",
FutureWarning,
)
# Backward compatibility imports, to make sure all those objects can be found in integrations/deepspeed
from .integrations.deepspeed import ( # noqa
HfDeepSpeedConfig,
HfTrainerDeepSpeedConfig,
deepspeed_config,
deepspeed_init,
deepspeed_load_checkpoint,
deepspeed_optim_sched,
is_deepspeed_available,
is_deepspeed_zero3_enabled,
set_hf_deepspeed_config,
unset_hf_deepspeed_config,
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/feature_extraction_sequence_utils.py | # coding=utf-8
# Copyright 2021 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Sequence feature extraction class for common feature extractors to preprocess sequences.
"""
from typing import Dict, List, Optional, Union
import numpy as np
from .feature_extraction_utils import BatchFeature, FeatureExtractionMixin
from .utils import PaddingStrategy, TensorType, is_tf_tensor, is_torch_tensor, logging, to_numpy
logger = logging.get_logger(__name__)
class SequenceFeatureExtractor(FeatureExtractionMixin):
"""
This is a general feature extraction class for speech recognition.
Args:
feature_size (`int`):
The feature dimension of the extracted features.
sampling_rate (`int`):
The sampling rate at which the audio files should be digitalized expressed in hertz (Hz).
padding_value (`float`):
The value that is used to fill the padding values / vectors.
"""
def __init__(self, feature_size: int, sampling_rate: int, padding_value: float, **kwargs):
self.feature_size = feature_size
self.sampling_rate = sampling_rate
self.padding_value = padding_value
self.padding_side = kwargs.pop("padding_side", "right")
self.return_attention_mask = kwargs.pop("return_attention_mask", True)
super().__init__(**kwargs)
def pad(
self,
processed_features: Union[
BatchFeature,
List[BatchFeature],
Dict[str, BatchFeature],
Dict[str, List[BatchFeature]],
List[Dict[str, BatchFeature]],
],
padding: Union[bool, str, PaddingStrategy] = True,
max_length: Optional[int] = None,
truncation: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_attention_mask: Optional[bool] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
) -> BatchFeature:
"""
Pad input values / input vectors or a batch of input values / input vectors up to predefined length or to the
max sequence length in the batch.
Padding side (left/right) padding values are defined at the feature extractor level (with `self.padding_side`,
`self.padding_value`)
<Tip>
If the `processed_features` passed are dictionary of numpy arrays, PyTorch tensors or TensorFlow tensors, the
result will use the same type unless you provide a different tensor type with `return_tensors`. In the case of
PyTorch tensors, you will lose the specific device of your tensors however.
</Tip>
Args:
processed_features ([`BatchFeature`], list of [`BatchFeature`], `Dict[str, List[float]]`, `Dict[str, List[List[float]]` or `List[Dict[str, List[float]]]`):
Processed inputs. Can represent one input ([`BatchFeature`] or `Dict[str, List[float]]`) or a batch of
input values / vectors (list of [`BatchFeature`], *Dict[str, List[List[float]]]* or *List[Dict[str,
List[float]]]*) so you can use this method during preprocessing as well as in a PyTorch Dataloader
collate function.
Instead of `List[float]` you can have tensors (numpy arrays, PyTorch tensors or TensorFlow tensors),
see the note above for the return type.
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `True`):
Select a strategy to pad the returned sequences (according to the model's padding side and padding
index) among:
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
acceptable input length for the model if that argument is not provided.
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
lengths).
max_length (`int`, *optional*):
Maximum length of the returned list and optionally padding length (see above).
truncation (`bool`):
Activates truncation to cut input sequences longer than `max_length` to `max_length`.
pad_to_multiple_of (`int`, *optional*):
If set will pad the sequence to a multiple of the provided value.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
`>= 7.5` (Volta), or on TPUs which benefit from having sequence lengths be a multiple of 128.
return_attention_mask (`bool`, *optional*):
Whether to return the attention mask. If left to the default, will return the attention mask according
to the specific feature_extractor's default.
[What are attention masks?](../glossary#attention-mask)
return_tensors (`str` or [`~utils.TensorType`], *optional*):
If set, will return tensors instead of list of python integers. Acceptable values are:
- `'tf'`: Return TensorFlow `tf.constant` objects.
- `'pt'`: Return PyTorch `torch.Tensor` objects.
- `'np'`: Return Numpy `np.ndarray` objects.
"""
# If we have a list of dicts, let's convert it in a dict of lists
# We do this to allow using this method as a collate_fn function in PyTorch Dataloader
if isinstance(processed_features, (list, tuple)) and isinstance(processed_features[0], (dict, BatchFeature)):
processed_features = {
key: [example[key] for example in processed_features] for key in processed_features[0].keys()
}
# The model's main input name, usually `input_values`, has be passed for padding
if self.model_input_names[0] not in processed_features:
raise ValueError(
"You should supply an instance of `transformers.BatchFeature` or list of `transformers.BatchFeature`"
f" to this method that includes {self.model_input_names[0]}, but you provided"
f" {list(processed_features.keys())}"
)
required_input = processed_features[self.model_input_names[0]]
return_attention_mask = (
return_attention_mask if return_attention_mask is not None else self.return_attention_mask
)
if len(required_input) == 0:
if return_attention_mask:
processed_features["attention_mask"] = []
return processed_features
# If we have PyTorch/TF tensors or lists as inputs, we cast them as Numpy arrays
# and rebuild them afterwards if no return_tensors is specified
# Note that we lose the specific device the tensor may be on for PyTorch
first_element = required_input[0]
if isinstance(first_element, (list, tuple)):
# first_element might be an empty list/tuple in some edge cases so we grab the first non empty element.
index = 0
while len(required_input[index]) == 0:
index += 1
if index < len(required_input):
first_element = required_input[index][0]
if return_tensors is None:
if is_tf_tensor(first_element):
return_tensors = "tf"
elif is_torch_tensor(first_element):
return_tensors = "pt"
elif isinstance(first_element, (int, float, list, tuple, np.ndarray)):
return_tensors = "np"
else:
raise ValueError(
f"type of {first_element} unknown: {type(first_element)}. "
"Should be one of a python, numpy, pytorch or tensorflow object."
)
for key, value in processed_features.items():
if isinstance(value[0], (int, float)):
processed_features[key] = to_numpy(value)
else:
processed_features[key] = [to_numpy(v) for v in value]
# Convert padding_strategy in PaddingStrategy
padding_strategy = self._get_padding_strategies(padding=padding, max_length=max_length)
required_input = processed_features[self.model_input_names[0]]
batch_size = len(required_input)
if not all(len(v) == batch_size for v in processed_features.values()):
raise ValueError("Some items in the output dictionary have a different batch size than others.")
truncated_inputs = []
for i in range(batch_size):
inputs = {k: v[i] for k, v in processed_features.items()}
# truncation
inputs_slice = self._truncate(
inputs,
max_length=max_length,
pad_to_multiple_of=pad_to_multiple_of,
truncation=truncation,
)
truncated_inputs.append(inputs_slice)
if padding_strategy == PaddingStrategy.LONGEST:
# make sure that `max_length` cannot be longer than the longest truncated length
max_length = max(len(input_slice[self.model_input_names[0]]) for input_slice in truncated_inputs)
padding_strategy = PaddingStrategy.MAX_LENGTH
batch_outputs = {}
for i in range(batch_size):
# padding
outputs = self._pad(
truncated_inputs[i],
max_length=max_length,
padding_strategy=padding_strategy,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
)
for key, value in outputs.items():
if key not in batch_outputs:
batch_outputs[key] = []
if value.dtype is np.dtype(np.float64):
value = value.astype(np.float32)
batch_outputs[key].append(value)
return BatchFeature(batch_outputs, tensor_type=return_tensors)
def _pad(
self,
processed_features: Union[Dict[str, np.ndarray], BatchFeature],
max_length: Optional[int] = None,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
pad_to_multiple_of: Optional[int] = None,
return_attention_mask: Optional[bool] = None,
) -> dict:
"""
Pad inputs (on left/right and up to predefined length or max length in the batch)
Args:
processed_features (`Union[Dict[str, np.ndarray], BatchFeature]`):
Dictionary of input values (`np.ndarray[float]`) / input vectors (`List[np.ndarray[float]]`) or batch
of inputs values (`List[np.ndarray[int]]`) / input vectors (`List[np.ndarray[int]]`)
max_length (`int`, *optional*):
Maximum length of the returned list and optionally padding length (see below)
padding_strategy (`PaddingStrategy`, *optional*, default to `PaddingStrategy.DO_NOT_PAD`):
PaddingStrategy to use for padding.
- PaddingStrategy.LONGEST Pad to the longest sequence in the batch
- PaddingStrategy.MAX_LENGTH: Pad to the max length (default)
- PaddingStrategy.DO_NOT_PAD: Do not pad
The feature_extractor padding sides are defined in self.padding_side:
- 'left': pads on the left of the sequences
- 'right': pads on the right of the sequences
pad_to_multiple_of (`int`, *optional*):
Integer if set will pad the sequence to a multiple of the provided value. This is especially useful to
enable the use of Tensor Core on NVIDIA hardware with compute capability `>= 7.5` (Volta), or on TPUs
which benefit from having sequence lengths be a multiple of 128.
return_attention_mask (`bool`, *optional*):
Set to False to avoid returning attention mask (default: set to model specifics)
"""
required_input = processed_features[self.model_input_names[0]]
if padding_strategy == PaddingStrategy.LONGEST:
max_length = len(required_input)
if max_length is not None and pad_to_multiple_of is not None and (max_length % pad_to_multiple_of != 0):
max_length = ((max_length // pad_to_multiple_of) + 1) * pad_to_multiple_of
needs_to_be_padded = padding_strategy != PaddingStrategy.DO_NOT_PAD and len(required_input) < max_length
if return_attention_mask and "attention_mask" not in processed_features:
processed_features["attention_mask"] = np.ones(len(required_input), dtype=np.int32)
if needs_to_be_padded:
difference = max_length - len(required_input)
if self.padding_side == "right":
if return_attention_mask:
processed_features["attention_mask"] = np.pad(
processed_features["attention_mask"], (0, difference)
)
padding_shape = ((0, difference), (0, 0)) if self.feature_size > 1 else (0, difference)
processed_features[self.model_input_names[0]] = np.pad(
required_input, padding_shape, "constant", constant_values=self.padding_value
)
elif self.padding_side == "left":
if return_attention_mask:
processed_features["attention_mask"] = np.pad(
processed_features["attention_mask"], (difference, 0)
)
padding_shape = ((difference, 0), (0, 0)) if self.feature_size > 1 else (difference, 0)
processed_features[self.model_input_names[0]] = np.pad(
required_input, padding_shape, "constant", constant_values=self.padding_value
)
else:
raise ValueError("Invalid padding strategy:" + str(self.padding_side))
return processed_features
def _truncate(
self,
processed_features: Union[Dict[str, np.ndarray], BatchFeature],
max_length: Optional[int] = None,
pad_to_multiple_of: Optional[int] = None,
truncation: Optional[bool] = None,
):
"""
Truncate inputs to predefined length or max length in the batch
Args:
processed_features(`Union[Dict[str, np.ndarray], BatchFeature]`):
Dictionary of input values (`np.ndarray[float]`) / input vectors (`List[np.ndarray[float]]`) or batch
of inputs values (`List[np.ndarray[int]]`) / input vectors (`List[np.ndarray[int]]`)
max_length (`int`, *optional*):
maximum length of the returned list and optionally padding length (see below)
pad_to_multiple_of (`int`, *optional*) :
Integer if set will pad the sequence to a multiple of the provided value. This is especially useful to
enable the use of Tensor Core on NVIDIA hardware with compute capability `>= 7.5` (Volta), or on TPUs
which benefit from having sequence lengths be a multiple of 128.
truncation (`bool`, *optional*):
Activates truncation to cut input sequences longer than `max_length` to `max_length`.
"""
if not truncation:
return processed_features
elif truncation and max_length is None:
raise ValueError("When setting ``truncation=True``, make sure that ``max_length`` is defined.")
required_input = processed_features[self.model_input_names[0]]
# find `max_length` that fits `pad_to_multiple_of`
if max_length is not None and pad_to_multiple_of is not None and (max_length % pad_to_multiple_of != 0):
max_length = ((max_length // pad_to_multiple_of) + 1) * pad_to_multiple_of
needs_to_be_truncated = len(required_input) > max_length
if needs_to_be_truncated:
processed_features[self.model_input_names[0]] = processed_features[self.model_input_names[0]][:max_length]
if "attention_mask" in processed_features:
processed_features["attention_mask"] = processed_features["attention_mask"][:max_length]
return processed_features
def _get_padding_strategies(self, padding=False, max_length=None):
"""
Find the correct padding strategy
"""
# Get padding strategy
if padding is not False:
if padding is True:
padding_strategy = PaddingStrategy.LONGEST # Default to pad to the longest sequence in the batch
elif not isinstance(padding, PaddingStrategy):
padding_strategy = PaddingStrategy(padding)
elif isinstance(padding, PaddingStrategy):
padding_strategy = padding
else:
padding_strategy = PaddingStrategy.DO_NOT_PAD
# Set max length if needed
if max_length is None:
if padding_strategy == PaddingStrategy.MAX_LENGTH:
raise ValueError(
f"When setting ``padding={PaddingStrategy.MAX_LENGTH}``, make sure that max_length is defined"
)
# Test if we have a padding value
if padding_strategy != PaddingStrategy.DO_NOT_PAD and (self.padding_value is None):
raise ValueError(
"Asking to pad but the feature_extractor does not have a padding value. Please select a value to use"
" as `padding_value`. For example: `feature_extractor.padding_value = 0.0`."
)
return padding_strategy
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_flax_pytorch_utils.py | # coding=utf-8
# Copyright 2021 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" PyTorch - Flax general utilities."""
import os
from pickle import UnpicklingError
from typing import Dict, Tuple
import jax
import jax.numpy as jnp
import numpy as np
from flax.serialization import from_bytes
from flax.traverse_util import flatten_dict, unflatten_dict
import transformers
from . import is_safetensors_available, is_torch_available
from .utils import logging
if is_torch_available():
import torch
if is_safetensors_available():
from safetensors import safe_open
from safetensors.flax import load_file as safe_load_file
logger = logging.get_logger(__name__)
#####################
# PyTorch => Flax #
#####################
def load_pytorch_checkpoint_in_flax_state_dict(
flax_model, pytorch_checkpoint_path, is_sharded, allow_missing_keys=False
):
"""Load pytorch checkpoints in a flax model"""
if not is_sharded:
pt_path = os.path.abspath(pytorch_checkpoint_path)
logger.info(f"Loading PyTorch weights from {pt_path}")
if pt_path.endswith(".safetensors"):
pt_state_dict = {}
with safe_open(pt_path, framework="flax") as f:
for k in f.keys():
pt_state_dict[k] = f.get_tensor(k)
else:
try:
import torch # noqa: F401
from .pytorch_utils import is_torch_greater_or_equal_than_1_13 # noqa: F401
except (ImportError, ModuleNotFoundError):
logger.error(
"Loading a PyTorch model in Flax, requires both PyTorch and Flax to be installed. Please see"
" https://pytorch.org/ and https://flax.readthedocs.io/en/latest/installation.html for installation"
" instructions."
)
raise
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
pt_state_dict = torch.load(pt_path, map_location="cpu", **weights_only_kwarg)
logger.info(f"PyTorch checkpoint contains {sum(t.numel() for t in pt_state_dict.values()):,} parameters.")
flax_state_dict = convert_pytorch_state_dict_to_flax(pt_state_dict, flax_model)
else:
# model is sharded and pytorch_checkpoint_path already contains the list of .pt shard files
flax_state_dict = convert_pytorch_sharded_state_dict_to_flax(pytorch_checkpoint_path, flax_model)
return flax_state_dict
def rename_key_and_reshape_tensor(
pt_tuple_key: Tuple[str],
pt_tensor: np.ndarray,
random_flax_state_dict: Dict[str, jnp.ndarray],
model_prefix: str,
) -> (Tuple[str], np.ndarray):
"""Rename PT weight names to corresponding Flax weight names and reshape tensor if necessary"""
def is_key_or_prefix_key_in_dict(key: Tuple[str]) -> bool:
"""Checks if `key` of `(prefix,) + key` is in random_flax_state_dict"""
return len(set(random_flax_state_dict) & {key, (model_prefix,) + key}) > 0
# layer norm
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("scale",)
if pt_tuple_key[-1] in ["weight", "gamma"] and is_key_or_prefix_key_in_dict(renamed_pt_tuple_key):
return renamed_pt_tuple_key, pt_tensor
# batch norm layer mean
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("mean",)
if pt_tuple_key[-1] == "running_mean" and not is_key_or_prefix_key_in_dict(pt_tuple_key):
return renamed_pt_tuple_key, pt_tensor
# batch norm layer var
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("var",)
if pt_tuple_key[-1] == "running_var" and not is_key_or_prefix_key_in_dict(pt_tuple_key):
return renamed_pt_tuple_key, pt_tensor
# embedding
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("embedding",)
if pt_tuple_key[-1] == "weight" and is_key_or_prefix_key_in_dict(renamed_pt_tuple_key):
return renamed_pt_tuple_key, pt_tensor
# conv layer
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("kernel",)
if pt_tuple_key[-1] == "weight" and pt_tensor.ndim == 4 and not is_key_or_prefix_key_in_dict(pt_tuple_key):
pt_tensor = pt_tensor.transpose(2, 3, 1, 0)
return renamed_pt_tuple_key, pt_tensor
# linear layer
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("kernel",)
if pt_tuple_key[-1] == "weight" and not is_key_or_prefix_key_in_dict(pt_tuple_key):
pt_tensor = pt_tensor.T
return renamed_pt_tuple_key, pt_tensor
# old PyTorch layer norm weight
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("weight",)
if pt_tuple_key[-1] == "gamma":
return renamed_pt_tuple_key, pt_tensor
# old PyTorch layer norm bias
renamed_pt_tuple_key = pt_tuple_key[:-1] + ("bias",)
if pt_tuple_key[-1] == "beta":
return renamed_pt_tuple_key, pt_tensor
# New `weight_norm` from https://github.com/huggingface/transformers/pull/24030
name = None
if pt_tuple_key[-3::2] == ("parametrizations", "original0"):
name = pt_tuple_key[-2] + "_g"
elif pt_tuple_key[-3::2] == ("parametrizations", "original1"):
name = pt_tuple_key[-2] + "_v"
if name is not None:
renamed_pt_tuple_key = pt_tuple_key[:-3] + (name,)
return renamed_pt_tuple_key, pt_tensor
return pt_tuple_key, pt_tensor
def convert_pytorch_state_dict_to_flax(pt_state_dict, flax_model):
# convert pytorch tensor to numpy
from_bin = is_torch_available() and isinstance(next(iter(pt_state_dict.values())), torch.Tensor)
bfloat16 = torch.bfloat16 if from_bin else "bfloat16"
weight_dtypes = {k: v.dtype for k, v in pt_state_dict.items()}
if from_bin:
for k, v in pt_state_dict.items():
# numpy currently does not support bfloat16, need to go over float32 in this case to not lose precision
if v.dtype == bfloat16:
v = v.float()
pt_state_dict[k] = v.numpy()
model_prefix = flax_model.base_model_prefix
# use params dict if the model contains batch norm layers
if "params" in flax_model.params:
flax_model_params = flax_model.params["params"]
else:
flax_model_params = flax_model.params
random_flax_state_dict = flatten_dict(flax_model_params)
# add batch_stats keys,values to dict
if "batch_stats" in flax_model.params:
flax_batch_stats = flatten_dict(flax_model.params["batch_stats"])
random_flax_state_dict.update(flax_batch_stats)
flax_state_dict = {}
load_model_with_head_into_base_model = (model_prefix not in flax_model_params) and (
model_prefix in {k.split(".")[0] for k in pt_state_dict.keys()}
)
load_base_model_into_model_with_head = (model_prefix in flax_model_params) and (
model_prefix not in {k.split(".")[0] for k in pt_state_dict.keys()}
)
# Need to change some parameters name to match Flax names
for pt_key, pt_tensor in pt_state_dict.items():
pt_tuple_key = tuple(pt_key.split("."))
is_bfloat_16 = weight_dtypes[pt_key] == bfloat16
# remove base model prefix if necessary
has_base_model_prefix = pt_tuple_key[0] == model_prefix
if load_model_with_head_into_base_model and has_base_model_prefix:
pt_tuple_key = pt_tuple_key[1:]
# Correctly rename weight parameters
flax_key, flax_tensor = rename_key_and_reshape_tensor(
pt_tuple_key, pt_tensor, random_flax_state_dict, model_prefix
)
# add model prefix if necessary
require_base_model_prefix = (model_prefix,) + flax_key in random_flax_state_dict
if load_base_model_into_model_with_head and require_base_model_prefix:
flax_key = (model_prefix,) + flax_key
if flax_key in random_flax_state_dict:
if flax_tensor.shape != random_flax_state_dict[flax_key].shape:
raise ValueError(
f"PyTorch checkpoint seems to be incorrect. Weight {pt_key} was expected to be of shape "
f"{random_flax_state_dict[flax_key].shape}, but is {flax_tensor.shape}."
)
# add batch stats if the model contains batchnorm layers
if "batch_stats" in flax_model.params:
if "mean" in flax_key[-1] or "var" in flax_key[-1]:
flax_state_dict[("batch_stats",) + flax_key] = jnp.asarray(flax_tensor)
continue
# remove num_batches_tracked key
if "num_batches_tracked" in flax_key[-1]:
flax_state_dict.pop(flax_key, None)
continue
# also add unexpected weight so that warning is thrown
flax_state_dict[("params",) + flax_key] = (
jnp.asarray(flax_tensor) if not is_bfloat_16 else jnp.asarray(flax_tensor, dtype=jnp.bfloat16)
)
else:
# also add unexpected weight so that warning is thrown
flax_state_dict[flax_key] = (
jnp.asarray(flax_tensor) if not is_bfloat_16 else jnp.asarray(flax_tensor, dtype=jnp.bfloat16)
)
return unflatten_dict(flax_state_dict)
############################
# Sharded Pytorch => Flax #
############################
def convert_pytorch_sharded_state_dict_to_flax(shard_filenames, flax_model):
import torch
from .pytorch_utils import is_torch_greater_or_equal_than_1_13
# Load the index
flax_state_dict = {}
for shard_file in shard_filenames:
# load using msgpack utils
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
pt_state_dict = torch.load(shard_file, **weights_only_kwarg)
weight_dtypes = {k: v.dtype for k, v in pt_state_dict.items()}
pt_state_dict = {
k: v.numpy() if v.dtype != torch.bfloat16 else v.float().numpy() for k, v in pt_state_dict.items()
}
model_prefix = flax_model.base_model_prefix
# use params dict if the model contains batch norm layers and then add batch_stats keys,values to dict
if "batch_stats" in flax_model.params:
flax_model_params = flax_model.params["params"]
random_flax_state_dict = flatten_dict(flax_model_params)
random_flax_state_dict.update(flatten_dict(flax_model.params["batch_stats"]))
else:
flax_model_params = flax_model.params
random_flax_state_dict = flatten_dict(flax_model_params)
load_model_with_head_into_base_model = (model_prefix not in flax_model_params) and (
model_prefix in {k.split(".")[0] for k in pt_state_dict.keys()}
)
load_base_model_into_model_with_head = (model_prefix in flax_model_params) and (
model_prefix not in {k.split(".")[0] for k in pt_state_dict.keys()}
)
# Need to change some parameters name to match Flax names
for pt_key, pt_tensor in pt_state_dict.items():
pt_tuple_key = tuple(pt_key.split("."))
is_bfloat_16 = weight_dtypes[pt_key] == torch.bfloat16
# remove base model prefix if necessary
has_base_model_prefix = pt_tuple_key[0] == model_prefix
if load_model_with_head_into_base_model and has_base_model_prefix:
pt_tuple_key = pt_tuple_key[1:]
# Correctly rename weight parameters
flax_key, flax_tensor = rename_key_and_reshape_tensor(
pt_tuple_key, pt_tensor, random_flax_state_dict, model_prefix
)
# add model prefix if necessary
require_base_model_prefix = (model_prefix,) + flax_key in random_flax_state_dict
if load_base_model_into_model_with_head and require_base_model_prefix:
flax_key = (model_prefix,) + flax_key
if flax_key in random_flax_state_dict:
if flax_tensor.shape != random_flax_state_dict[flax_key].shape:
raise ValueError(
f"PyTorch checkpoint seems to be incorrect. Weight {pt_key} was expected to be of shape "
f"{random_flax_state_dict[flax_key].shape}, but is {flax_tensor.shape}."
)
# add batch stats if the model contains batchnorm layers
if "batch_stats" in flax_model.params:
if "mean" in flax_key[-1]:
flax_state_dict[("batch_stats",) + flax_key] = jnp.asarray(flax_tensor)
continue
if "var" in flax_key[-1]:
flax_state_dict[("batch_stats",) + flax_key] = jnp.asarray(flax_tensor)
continue
# remove num_batches_tracked key
if "num_batches_tracked" in flax_key[-1]:
flax_state_dict.pop(flax_key, None)
continue
# also add unexpected weight so that warning is thrown
flax_state_dict[("params",) + flax_key] = (
jnp.asarray(flax_tensor) if not is_bfloat_16 else jnp.asarray(flax_tensor, dtype=jnp.bfloat16)
)
else:
# also add unexpected weight so that warning is thrown
flax_state_dict[flax_key] = (
jnp.asarray(flax_tensor) if not is_bfloat_16 else jnp.asarray(flax_tensor, dtype=jnp.bfloat16)
)
return unflatten_dict(flax_state_dict)
#####################
# Flax => PyTorch #
#####################
def load_flax_checkpoint_in_pytorch_model(model, flax_checkpoint_path):
"""Load flax checkpoints in a PyTorch model"""
flax_checkpoint_path = os.path.abspath(flax_checkpoint_path)
logger.info(f"Loading Flax weights from {flax_checkpoint_path}")
# import correct flax class
flax_cls = getattr(transformers, "Flax" + model.__class__.__name__)
# load flax weight dict
if flax_checkpoint_path.endswith(".safetensors"):
flax_state_dict = safe_load_file(flax_checkpoint_path)
flax_state_dict = unflatten_dict(flax_state_dict, sep=".")
else:
with open(flax_checkpoint_path, "rb") as state_f:
try:
flax_state_dict = from_bytes(flax_cls, state_f.read())
except UnpicklingError:
raise EnvironmentError(f"Unable to convert {flax_checkpoint_path} to Flax deserializable object. ")
return load_flax_weights_in_pytorch_model(model, flax_state_dict)
def load_flax_weights_in_pytorch_model(pt_model, flax_state):
"""Load flax checkpoints in a PyTorch model"""
try:
import torch # noqa: F401
except (ImportError, ModuleNotFoundError):
logger.error(
"Loading a Flax weights in PyTorch, requires both PyTorch and Flax to be installed. Please see"
" https://pytorch.org/ and https://flax.readthedocs.io/en/latest/installation.html for installation"
" instructions."
)
raise
# check if we have bf16 weights
is_type_bf16 = flatten_dict(jax.tree_util.tree_map(lambda x: x.dtype == jnp.bfloat16, flax_state)).values()
if any(is_type_bf16):
# convert all weights to fp32 if the are bf16 since torch.from_numpy can-not handle bf16
# and bf16 is not fully supported in PT yet.
logger.warning(
"Found ``bfloat16`` weights in Flax model. Casting all ``bfloat16`` weights to ``float32`` "
"before loading those in PyTorch model."
)
flax_state = jax.tree_util.tree_map(
lambda params: params.astype(np.float32) if params.dtype == jnp.bfloat16 else params, flax_state
)
flax_state_dict = flatten_dict(flax_state)
pt_model_dict = pt_model.state_dict()
load_model_with_head_into_base_model = (pt_model.base_model_prefix in flax_state) and (
pt_model.base_model_prefix not in {k.split(".")[0] for k in pt_model_dict.keys()}
)
load_base_model_into_model_with_head = (pt_model.base_model_prefix not in flax_state) and (
pt_model.base_model_prefix in {k.split(".")[0] for k in pt_model_dict.keys()}
)
# keep track of unexpected & missing keys
unexpected_keys = []
missing_keys = set(pt_model_dict.keys())
for flax_key_tuple, flax_tensor in flax_state_dict.items():
has_base_model_prefix = flax_key_tuple[0] == pt_model.base_model_prefix
require_base_model_prefix = ".".join((pt_model.base_model_prefix,) + flax_key_tuple) in pt_model_dict
# adapt flax_key to prepare for loading from/to base model only
if load_model_with_head_into_base_model and has_base_model_prefix:
flax_key_tuple = flax_key_tuple[1:]
elif load_base_model_into_model_with_head and require_base_model_prefix:
flax_key_tuple = (pt_model.base_model_prefix,) + flax_key_tuple
# rename flax weights to PyTorch format
if flax_key_tuple[-1] == "kernel" and flax_tensor.ndim == 4 and ".".join(flax_key_tuple) not in pt_model_dict:
# conv layer
flax_key_tuple = flax_key_tuple[:-1] + ("weight",)
flax_tensor = jnp.transpose(flax_tensor, (3, 2, 0, 1))
elif flax_key_tuple[-1] == "kernel" and ".".join(flax_key_tuple) not in pt_model_dict:
# linear layer
flax_key_tuple = flax_key_tuple[:-1] + ("weight",)
flax_tensor = flax_tensor.T
elif flax_key_tuple[-1] in ["scale", "embedding"]:
flax_key_tuple = flax_key_tuple[:-1] + ("weight",)
# adding batch stats from flax batch norm to pt
elif "mean" in flax_key_tuple[-1]:
flax_key_tuple = flax_key_tuple[:-1] + ("running_mean",)
elif "var" in flax_key_tuple[-1]:
flax_key_tuple = flax_key_tuple[:-1] + ("running_var",)
if "batch_stats" in flax_state:
flax_key = ".".join(flax_key_tuple[1:]) # Remove the params/batch_stats header
else:
flax_key = ".".join(flax_key_tuple)
# We also need to look at `pt_model_dict` and see if there are keys requiring further transformation.
special_pt_names = {}
# New `weight_norm` from https://github.com/huggingface/transformers/pull/24030
for key in pt_model_dict:
key_components = key.split(".")
name = None
if key_components[-3::2] == ["parametrizations", "original0"]:
name = key_components[-2] + "_g"
elif key_components[-3::2] == ["parametrizations", "original1"]:
name = key_components[-2] + "_v"
if name is not None:
key_components = key_components[:-3] + [name]
key_to_check = ".".join(key_components)
special_pt_names[key_to_check] = key
if flax_key in special_pt_names:
flax_key = special_pt_names[flax_key]
if flax_key in pt_model_dict:
if flax_tensor.shape != pt_model_dict[flax_key].shape:
raise ValueError(
f"Flax checkpoint seems to be incorrect. Weight {flax_key_tuple} was expected "
f"to be of shape {pt_model_dict[flax_key].shape}, but is {flax_tensor.shape}."
)
else:
# add weight to pytorch dict
flax_tensor = np.asarray(flax_tensor) if not isinstance(flax_tensor, np.ndarray) else flax_tensor
pt_model_dict[flax_key] = torch.from_numpy(flax_tensor)
# remove from missing keys
missing_keys.remove(flax_key)
else:
# weight is not expected by PyTorch model
unexpected_keys.append(flax_key)
pt_model.load_state_dict(pt_model_dict)
# re-transform missing_keys to list
missing_keys = list(missing_keys)
if len(unexpected_keys) > 0:
logger.warning(
"Some weights of the Flax model were not used when initializing the PyTorch model"
f" {pt_model.__class__.__name__}: {unexpected_keys}\n- This IS expected if you are initializing"
f" {pt_model.__class__.__name__} from a Flax model trained on another task or with another architecture"
" (e.g. initializing a BertForSequenceClassification model from a FlaxBertForPreTraining model).\n- This"
f" IS NOT expected if you are initializing {pt_model.__class__.__name__} from a Flax model that you expect"
" to be exactly identical (e.g. initializing a BertForSequenceClassification model from a"
" FlaxBertForSequenceClassification model)."
)
else:
logger.warning(f"All Flax model weights were used when initializing {pt_model.__class__.__name__}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some weights of {pt_model.__class__.__name__} were not initialized from the Flax model and are newly"
f" initialized: {missing_keys}\nYou should probably TRAIN this model on a down-stream task to be able to"
" use it for predictions and inference."
)
else:
logger.warning(
f"All the weights of {pt_model.__class__.__name__} were initialized from the Flax model.\n"
"If your task is similar to the task the model of the checkpoint was trained on, "
f"you can already use {pt_model.__class__.__name__} for predictions without further training."
)
return pt_model
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/training_args.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import contextlib
import io
import json
import math
import os
import warnings
from dataclasses import asdict, dataclass, field, fields
from datetime import timedelta
from enum import Enum
from pathlib import Path
from typing import Any, Dict, List, Optional, Union
from huggingface_hub import get_full_repo_name
from packaging import version
from .debug_utils import DebugOption
from .trainer_utils import (
EvaluationStrategy,
FSDPOption,
HubStrategy,
IntervalStrategy,
SchedulerType,
)
from .utils import (
ACCELERATE_MIN_VERSION,
ExplicitEnum,
cached_property,
is_accelerate_available,
is_safetensors_available,
is_sagemaker_dp_enabled,
is_sagemaker_mp_enabled,
is_torch_available,
is_torch_bf16_cpu_available,
is_torch_bf16_gpu_available,
is_torch_mlu_available,
is_torch_neuroncore_available,
is_torch_npu_available,
is_torch_tf32_available,
is_torch_xla_available,
is_torch_xpu_available,
logging,
requires_backends,
)
from .utils.generic import strtobool
from .utils.import_utils import is_optimum_neuron_available
logger = logging.get_logger(__name__)
log_levels = logging.get_log_levels_dict().copy()
trainer_log_levels = dict(**log_levels, passive=-1)
if is_torch_available():
import torch
import torch.distributed as dist
from .pytorch_utils import is_torch_greater_or_equal_than_2_0, is_torch_greater_or_equal_than_2_3
if is_accelerate_available():
from accelerate.state import AcceleratorState, PartialState
from accelerate.utils import DistributedType
from .trainer_pt_utils import AcceleratorConfig
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
if is_torch_neuroncore_available(check_device=False):
# torchrun support
# https://github.com/pytorch/xla/pull/3609
if os.environ.get("TORCHELASTIC_RUN_ID"):
if is_optimum_neuron_available():
logger.info(
"Make sure that you are performing the training with the NeuronTrainer from optimum[neuron], this "
"will fail otherwise."
)
else:
logger.warning(
"Please use the NeuronTrainer from optimum[neuron] instead of the Transformers library to perform "
"training on AWS Trainium instances. More information here: "
"https://github.com/huggingface/optimum-neuron"
)
import torch_xla.distributed.xla_backend as xbn
if not isinstance(dist.group.WORLD, xbn.ProcessGroupXla):
dist.init_process_group(backend="xla")
if not isinstance(dist.group.WORLD, xbn.ProcessGroupXla):
raise AssertionError("Failed to initialize torch.distributed process group using XLA backend.")
if is_sagemaker_mp_enabled():
import smdistributed.modelparallel.torch as smp
smp.init()
def default_logdir() -> str:
"""
Same default as PyTorch
"""
import socket
from datetime import datetime
current_time = datetime.now().strftime("%b%d_%H-%M-%S")
return os.path.join("runs", current_time + "_" + socket.gethostname())
def get_int_from_env(env_keys, default):
"""Returns the first positive env value found in the `env_keys` list or the default."""
for e in env_keys:
val = int(os.environ.get(e, -1))
if val >= 0:
return val
return default
def get_xla_device_type(device: "torch.device") -> Optional[str]:
"""
Returns the xla device type (CPU|GPU|TPU) or None if the device is a non-xla device.
"""
if is_torch_xla_available():
if device.type == "cpu":
return "CPU"
return xm.xla_real_devices([device])[0].split(":")[0]
return None
class OptimizerNames(ExplicitEnum):
"""
Stores the acceptable string identifiers for optimizers.
"""
ADAMW_HF = "adamw_hf"
ADAMW_TORCH = "adamw_torch"
ADAMW_TORCH_FUSED = "adamw_torch_fused"
ADAMW_TORCH_XLA = "adamw_torch_xla"
ADAMW_TORCH_NPU_FUSED = "adamw_torch_npu_fused"
ADAMW_APEX_FUSED = "adamw_apex_fused"
ADAFACTOR = "adafactor"
ADAMW_ANYPRECISION = "adamw_anyprecision"
SGD = "sgd"
ADAGRAD = "adagrad"
ADAMW_BNB = "adamw_bnb_8bit"
ADAMW_8BIT = "adamw_8bit" # just an alias for adamw_bnb_8bit
LION_8BIT = "lion_8bit"
LION = "lion_32bit"
PAGED_ADAMW = "paged_adamw_32bit"
PAGED_ADAMW_8BIT = "paged_adamw_8bit"
PAGED_LION = "paged_lion_32bit"
PAGED_LION_8BIT = "paged_lion_8bit"
RMSPROP = "rmsprop"
RMSPROP_BNB = "rmsprop_bnb"
RMSPROP_8BIT = "rmsprop_bnb_8bit"
RMSPROP_32BIT = "rmsprop_bnb_32bit"
GALORE_ADAMW = "galore_adamw"
GALORE_ADAMW_8BIT = "galore_adamw_8bit"
GALORE_ADAFACTOR = "galore_adafactor"
GALORE_ADAMW_LAYERWISE = "galore_adamw_layerwise"
GALORE_ADAMW_8BIT_LAYERWISE = "galore_adamw_8bit_layerwise"
GALORE_ADAFACTOR_LAYERWISE = "galore_adafactor_layerwise"
# Sometimes users will pass in a `str` repr of a dict in the CLI
# We need to track what fields those can be. Each time a new arg
# has a dict type, it must be added to this list.
# Important: These should be typed with Optional[Union[dict,str,...]]
_VALID_DICT_FIELDS = [
"accelerator_config",
"fsdp_config",
"deepspeed",
"gradient_checkpointing_kwargs",
"lr_scheduler_kwargs",
]
def _convert_str_dict(passed_value: dict):
"Safely checks that a passed value is a dictionary and converts any string values to their appropriate types."
for key, value in passed_value.items():
if isinstance(value, dict):
passed_value[key] = _convert_str_dict(value)
elif isinstance(value, str):
# First check for bool and convert
if value.lower() in ("true", "false"):
passed_value[key] = value.lower() == "true"
# Check for digit
elif value.isdigit():
passed_value[key] = int(value)
elif value.replace(".", "", 1).isdigit():
passed_value[key] = float(value)
return passed_value
# TODO: `TrainingArguments` users rely on it being fully mutable. In the future see if we can narrow this to a few keys: https://github.com/huggingface/transformers/pull/25903
@dataclass
class TrainingArguments:
"""
TrainingArguments is the subset of the arguments we use in our example scripts **which relate to the training loop
itself**.
Using [`HfArgumentParser`] we can turn this class into
[argparse](https://docs.python.org/3/library/argparse#module-argparse) arguments that can be specified on the
command line.
Parameters:
output_dir (`str`):
The output directory where the model predictions and checkpoints will be written.
overwrite_output_dir (`bool`, *optional*, defaults to `False`):
If `True`, overwrite the content of the output directory. Use this to continue training if `output_dir`
points to a checkpoint directory.
do_train (`bool`, *optional*, defaults to `False`):
Whether to run training or not. This argument is not directly used by [`Trainer`], it's intended to be used
by your training/evaluation scripts instead. See the [example
scripts](https://github.com/huggingface/transformers/tree/main/examples) for more details.
do_eval (`bool`, *optional*):
Whether to run evaluation on the validation set or not. Will be set to `True` if `eval_strategy` is
different from `"no"`. This argument is not directly used by [`Trainer`], it's intended to be used by your
training/evaluation scripts instead. See the [example
scripts](https://github.com/huggingface/transformers/tree/main/examples) for more details.
do_predict (`bool`, *optional*, defaults to `False`):
Whether to run predictions on the test set or not. This argument is not directly used by [`Trainer`], it's
intended to be used by your training/evaluation scripts instead. See the [example
scripts](https://github.com/huggingface/transformers/tree/main/examples) for more details.
eval_strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"no"`):
The evaluation strategy to adopt during training. Possible values are:
- `"no"`: No evaluation is done during training.
- `"steps"`: Evaluation is done (and logged) every `eval_steps`.
- `"epoch"`: Evaluation is done at the end of each epoch.
prediction_loss_only (`bool`, *optional*, defaults to `False`):
When performing evaluation and generating predictions, only returns the loss.
per_device_train_batch_size (`int`, *optional*, defaults to 8):
The batch size per GPU/XPU/TPU/MPS/NPU core/CPU for training.
per_device_eval_batch_size (`int`, *optional*, defaults to 8):
The batch size per GPU/XPU/TPU/MPS/NPU core/CPU for evaluation.
gradient_accumulation_steps (`int`, *optional*, defaults to 1):
Number of updates steps to accumulate the gradients for, before performing a backward/update pass.
<Tip warning={true}>
When using gradient accumulation, one step is counted as one step with backward pass. Therefore, logging,
evaluation, save will be conducted every `gradient_accumulation_steps * xxx_step` training examples.
</Tip>
eval_accumulation_steps (`int`, *optional*):
Number of predictions steps to accumulate the output tensors for, before moving the results to the CPU. If
left unset, the whole predictions are accumulated on GPU/NPU/TPU before being moved to the CPU (faster but
requires more memory).
eval_delay (`float`, *optional*):
Number of epochs or steps to wait for before the first evaluation can be performed, depending on the
eval_strategy.
learning_rate (`float`, *optional*, defaults to 5e-5):
The initial learning rate for [`AdamW`] optimizer.
weight_decay (`float`, *optional*, defaults to 0):
The weight decay to apply (if not zero) to all layers except all bias and LayerNorm weights in [`AdamW`]
optimizer.
adam_beta1 (`float`, *optional*, defaults to 0.9):
The beta1 hyperparameter for the [`AdamW`] optimizer.
adam_beta2 (`float`, *optional*, defaults to 0.999):
The beta2 hyperparameter for the [`AdamW`] optimizer.
adam_epsilon (`float`, *optional*, defaults to 1e-8):
The epsilon hyperparameter for the [`AdamW`] optimizer.
max_grad_norm (`float`, *optional*, defaults to 1.0):
Maximum gradient norm (for gradient clipping).
num_train_epochs(`float`, *optional*, defaults to 3.0):
Total number of training epochs to perform (if not an integer, will perform the decimal part percents of
the last epoch before stopping training).
max_steps (`int`, *optional*, defaults to -1):
If set to a positive number, the total number of training steps to perform. Overrides `num_train_epochs`.
For a finite dataset, training is reiterated through the dataset (if all data is exhausted) until
`max_steps` is reached.
lr_scheduler_type (`str` or [`SchedulerType`], *optional*, defaults to `"linear"`):
The scheduler type to use. See the documentation of [`SchedulerType`] for all possible values.
lr_scheduler_kwargs ('dict', *optional*, defaults to {}):
The extra arguments for the lr_scheduler. See the documentation of each scheduler for possible values.
warmup_ratio (`float`, *optional*, defaults to 0.0):
Ratio of total training steps used for a linear warmup from 0 to `learning_rate`.
warmup_steps (`int`, *optional*, defaults to 0):
Number of steps used for a linear warmup from 0 to `learning_rate`. Overrides any effect of `warmup_ratio`.
log_level (`str`, *optional*, defaults to `passive`):
Logger log level to use on the main process. Possible choices are the log levels as strings: 'debug',
'info', 'warning', 'error' and 'critical', plus a 'passive' level which doesn't set anything and keeps the
current log level for the Transformers library (which will be `"warning"` by default).
log_level_replica (`str`, *optional*, defaults to `"warning"`):
Logger log level to use on replicas. Same choices as `log_level`"
log_on_each_node (`bool`, *optional*, defaults to `True`):
In multinode distributed training, whether to log using `log_level` once per node, or only on the main
node.
logging_dir (`str`, *optional*):
[TensorBoard](https://www.tensorflow.org/tensorboard) log directory. Will default to
*output_dir/runs/**CURRENT_DATETIME_HOSTNAME***.
logging_strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"steps"`):
The logging strategy to adopt during training. Possible values are:
- `"no"`: No logging is done during training.
- `"epoch"`: Logging is done at the end of each epoch.
- `"steps"`: Logging is done every `logging_steps`.
logging_first_step (`bool`, *optional*, defaults to `False`):
Whether to log the first `global_step` or not.
logging_steps (`int` or `float`, *optional*, defaults to 500):
Number of update steps between two logs if `logging_strategy="steps"`. Should be an integer or a float in
range `[0,1)`. If smaller than 1, will be interpreted as ratio of total training steps.
logging_nan_inf_filter (`bool`, *optional*, defaults to `True`):
Whether to filter `nan` and `inf` losses for logging. If set to `True` the loss of every step that is `nan`
or `inf` is filtered and the average loss of the current logging window is taken instead.
<Tip>
`logging_nan_inf_filter` only influences the logging of loss values, it does not change the behavior the
gradient is computed or applied to the model.
</Tip>
save_strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"steps"`):
The checkpoint save strategy to adopt during training. Possible values are:
- `"no"`: No save is done during training.
- `"epoch"`: Save is done at the end of each epoch.
- `"steps"`: Save is done every `save_steps`.
save_steps (`int` or `float`, *optional*, defaults to 500):
Number of updates steps before two checkpoint saves if `save_strategy="steps"`. Should be an integer or a
float in range `[0,1)`. If smaller than 1, will be interpreted as ratio of total training steps.
save_total_limit (`int`, *optional*):
If a value is passed, will limit the total amount of checkpoints. Deletes the older checkpoints in
`output_dir`. When `load_best_model_at_end` is enabled, the "best" checkpoint according to
`metric_for_best_model` will always be retained in addition to the most recent ones. For example, for
`save_total_limit=5` and `load_best_model_at_end`, the four last checkpoints will always be retained
alongside the best model. When `save_total_limit=1` and `load_best_model_at_end`, it is possible that two
checkpoints are saved: the last one and the best one (if they are different).
save_safetensors (`bool`, *optional*, defaults to `True`):
Use [safetensors](https://huggingface.co/docs/safetensors) saving and loading for state dicts instead of
default `torch.load` and `torch.save`.
save_on_each_node (`bool`, *optional*, defaults to `False`):
When doing multi-node distributed training, whether to save models and checkpoints on each node, or only on
the main one.
This should not be activated when the different nodes use the same storage as the files will be saved with
the same names for each node.
save_only_model (`bool`, *optional*, defaults to `False`):
When checkpointing, whether to only save the model, or also the optimizer, scheduler & rng state.
Note that when this is true, you won't be able to resume training from checkpoint.
This enables you to save storage by not storing the optimizer, scheduler & rng state.
You can only load the model using `from_pretrained` with this option set to `True`.
restore_callback_states_from_checkpoint (`bool`, *optional*, defaults to `False`):
Whether to restore the callback states from the checkpoint. If `True`, will override
callbacks passed to the `Trainer` if they exist in the checkpoint."
use_cpu (`bool`, *optional*, defaults to `False`):
Whether or not to use cpu. If set to False, we will use cuda or mps device if available.
seed (`int`, *optional*, defaults to 42):
Random seed that will be set at the beginning of training. To ensure reproducibility across runs, use the
[`~Trainer.model_init`] function to instantiate the model if it has some randomly initialized parameters.
data_seed (`int`, *optional*):
Random seed to be used with data samplers. If not set, random generators for data sampling will use the
same seed as `seed`. This can be used to ensure reproducibility of data sampling, independent of the model
seed.
jit_mode_eval (`bool`, *optional*, defaults to `False`):
Whether or not to use PyTorch jit trace for inference.
use_ipex (`bool`, *optional*, defaults to `False`):
Use Intel extension for PyTorch when it is available. [IPEX
installation](https://github.com/intel/intel-extension-for-pytorch).
bf16 (`bool`, *optional*, defaults to `False`):
Whether to use bf16 16-bit (mixed) precision training instead of 32-bit training. Requires Ampere or higher
NVIDIA architecture or using CPU (use_cpu) or Ascend NPU. This is an experimental API and it may change.
fp16 (`bool`, *optional*, defaults to `False`):
Whether to use fp16 16-bit (mixed) precision training instead of 32-bit training.
fp16_opt_level (`str`, *optional*, defaults to 'O1'):
For `fp16` training, Apex AMP optimization level selected in ['O0', 'O1', 'O2', and 'O3']. See details on
the [Apex documentation](https://nvidia.github.io/apex/amp).
fp16_backend (`str`, *optional*, defaults to `"auto"`):
This argument is deprecated. Use `half_precision_backend` instead.
half_precision_backend (`str`, *optional*, defaults to `"auto"`):
The backend to use for mixed precision training. Must be one of `"auto", "apex", "cpu_amp"`. `"auto"` will
use CPU/CUDA AMP or APEX depending on the PyTorch version detected, while the other choices will force the
requested backend.
bf16_full_eval (`bool`, *optional*, defaults to `False`):
Whether to use full bfloat16 evaluation instead of 32-bit. This will be faster and save memory but can harm
metric values. This is an experimental API and it may change.
fp16_full_eval (`bool`, *optional*, defaults to `False`):
Whether to use full float16 evaluation instead of 32-bit. This will be faster and save memory but can harm
metric values.
tf32 (`bool`, *optional*):
Whether to enable the TF32 mode, available in Ampere and newer GPU architectures. The default value depends
on PyTorch's version default of `torch.backends.cuda.matmul.allow_tf32`. For more details please refer to
the [TF32](https://huggingface.co/docs/transformers/performance#tf32) documentation. This is an
experimental API and it may change.
local_rank (`int`, *optional*, defaults to -1):
Rank of the process during distributed training.
ddp_backend (`str`, *optional*):
The backend to use for distributed training. Must be one of `"nccl"`, `"mpi"`, `"ccl"`, `"gloo"`, `"hccl"`.
tpu_num_cores (`int`, *optional*):
When training on TPU, the number of TPU cores (automatically passed by launcher script).
dataloader_drop_last (`bool`, *optional*, defaults to `False`):
Whether to drop the last incomplete batch (if the length of the dataset is not divisible by the batch size)
or not.
eval_steps (`int` or `float`, *optional*):
Number of update steps between two evaluations if `eval_strategy="steps"`. Will default to the same
value as `logging_steps` if not set. Should be an integer or a float in range `[0,1)`. If smaller than 1,
will be interpreted as ratio of total training steps.
dataloader_num_workers (`int`, *optional*, defaults to 0):
Number of subprocesses to use for data loading (PyTorch only). 0 means that the data will be loaded in the
main process.
past_index (`int`, *optional*, defaults to -1):
Some models like [TransformerXL](../model_doc/transformerxl) or [XLNet](../model_doc/xlnet) can make use of
the past hidden states for their predictions. If this argument is set to a positive int, the `Trainer` will
use the corresponding output (usually index 2) as the past state and feed it to the model at the next
training step under the keyword argument `mems`.
run_name (`str`, *optional*, defaults to `output_dir`):
A descriptor for the run. Typically used for [wandb](https://www.wandb.com/) and
[mlflow](https://www.mlflow.org/) logging. If not specified, will be the same as `output_dir`.
disable_tqdm (`bool`, *optional*):
Whether or not to disable the tqdm progress bars and table of metrics produced by
[`~notebook.NotebookTrainingTracker`] in Jupyter Notebooks. Will default to `True` if the logging level is
set to warn or lower (default), `False` otherwise.
remove_unused_columns (`bool`, *optional*, defaults to `True`):
Whether or not to automatically remove the columns unused by the model forward method.
label_names (`List[str]`, *optional*):
The list of keys in your dictionary of inputs that correspond to the labels.
Will eventually default to the list of argument names accepted by the model that contain the word "label",
except if the model used is one of the `XxxForQuestionAnswering` in which case it will also include the
`["start_positions", "end_positions"]` keys.
load_best_model_at_end (`bool`, *optional*, defaults to `False`):
Whether or not to load the best model found during training at the end of training. When this option is
enabled, the best checkpoint will always be saved. See
[`save_total_limit`](https://huggingface.co/docs/transformers/main_classes/trainer#transformers.TrainingArguments.save_total_limit)
for more.
<Tip>
When set to `True`, the parameters `save_strategy` needs to be the same as `eval_strategy`, and in
the case it is "steps", `save_steps` must be a round multiple of `eval_steps`.
</Tip>
metric_for_best_model (`str`, *optional*):
Use in conjunction with `load_best_model_at_end` to specify the metric to use to compare two different
models. Must be the name of a metric returned by the evaluation with or without the prefix `"eval_"`. Will
default to `"loss"` if unspecified and `load_best_model_at_end=True` (to use the evaluation loss).
If you set this value, `greater_is_better` will default to `True`. Don't forget to set it to `False` if
your metric is better when lower.
greater_is_better (`bool`, *optional*):
Use in conjunction with `load_best_model_at_end` and `metric_for_best_model` to specify if better models
should have a greater metric or not. Will default to:
- `True` if `metric_for_best_model` is set to a value that isn't `"loss"` or `"eval_loss"`.
- `False` if `metric_for_best_model` is not set, or set to `"loss"` or `"eval_loss"`.
ignore_data_skip (`bool`, *optional*, defaults to `False`):
When resuming training, whether or not to skip the epochs and batches to get the data loading at the same
stage as in the previous training. If set to `True`, the training will begin faster (as that skipping step
can take a long time) but will not yield the same results as the interrupted training would have.
fsdp (`bool`, `str` or list of [`~trainer_utils.FSDPOption`], *optional*, defaults to `''`):
Use PyTorch Distributed Parallel Training (in distributed training only).
A list of options along the following:
- `"full_shard"`: Shard parameters, gradients and optimizer states.
- `"shard_grad_op"`: Shard optimizer states and gradients.
- `"hybrid_shard"`: Apply `FULL_SHARD` within a node, and replicate parameters across nodes.
- `"hybrid_shard_zero2"`: Apply `SHARD_GRAD_OP` within a node, and replicate parameters across nodes.
- `"offload"`: Offload parameters and gradients to CPUs (only compatible with `"full_shard"` and
`"shard_grad_op"`).
- `"auto_wrap"`: Automatically recursively wrap layers with FSDP using `default_auto_wrap_policy`.
fsdp_config (`str` or `dict`, *optional*):
Config to be used with fsdp (Pytorch Distributed Parallel Training). The value is either a location of
fsdp json config file (e.g., `fsdp_config.json`) or an already loaded json file as `dict`.
A List of config and its options:
- min_num_params (`int`, *optional*, defaults to `0`):
FSDP's minimum number of parameters for Default Auto Wrapping. (useful only when `fsdp` field is
passed).
- transformer_layer_cls_to_wrap (`List[str]`, *optional*):
List of transformer layer class names (case-sensitive) to wrap, e.g, `BertLayer`, `GPTJBlock`,
`T5Block` .... (useful only when `fsdp` flag is passed).
- backward_prefetch (`str`, *optional*)
FSDP's backward prefetch mode. Controls when to prefetch next set of parameters (useful only when
`fsdp` field is passed).
A list of options along the following:
- `"backward_pre"` : Prefetches the next set of parameters before the current set of parameter's
gradient
computation.
- `"backward_post"` : This prefetches the next set of parameters after the current set of
parameter’s
gradient computation.
- forward_prefetch (`bool`, *optional*, defaults to `False`)
FSDP's forward prefetch mode (useful only when `fsdp` field is passed).
If `"True"`, then FSDP explicitly prefetches the next upcoming all-gather while executing in the
forward pass.
- limit_all_gathers (`bool`, *optional*, defaults to `False`)
FSDP's limit_all_gathers (useful only when `fsdp` field is passed).
If `"True"`, FSDP explicitly synchronizes the CPU thread to prevent too many in-flight
all-gathers.
- use_orig_params (`bool`, *optional*, defaults to `True`)
If `"True"`, allows non-uniform `requires_grad` during init, which means support for interspersed
frozen and trainable paramteres. Useful in cases such as parameter-efficient fine-tuning. Please
refer this
[blog](https://dev-discuss.pytorch.org/t/rethinking-pytorch-fully-sharded-data-parallel-fsdp-from-first-principles/1019
- sync_module_states (`bool`, *optional*, defaults to `True`)
If `"True"`, each individually wrapped FSDP unit will broadcast module parameters from rank 0 to
ensure they are the same across all ranks after initialization
- cpu_ram_efficient_loading (`bool`, *optional*, defaults to `False`)
If `"True"`, only the first process loads the pretrained model checkpoint while all other processes
have empty weights. When this setting as `"True"`, `sync_module_states` also must to be `"True"`,
otherwise all the processes except the main process would have random weights leading to unexpected
behaviour during training.
- activation_checkpointing (`bool`, *optional*, defaults to `False`):
If `"True"`, activation checkpointing is a technique to reduce memory usage by clearing activations of
certain layers and recomputing them during a backward pass. Effectively, this trades extra
computation time for reduced memory usage.
- xla (`bool`, *optional*, defaults to `False`):
Whether to use PyTorch/XLA Fully Sharded Data Parallel Training. This is an experimental feature
and its API may evolve in the future.
- xla_fsdp_settings (`dict`, *optional*)
The value is a dictionary which stores the XLA FSDP wrapping parameters.
For a complete list of options, please see [here](
https://github.com/pytorch/xla/blob/master/torch_xla/distributed/fsdp/xla_fully_sharded_data_parallel.py).
- xla_fsdp_grad_ckpt (`bool`, *optional*, defaults to `False`):
Will use gradient checkpointing over each nested XLA FSDP wrapped layer. This setting can only be
used when the xla flag is set to true, and an auto wrapping policy is specified through
fsdp_min_num_params or fsdp_transformer_layer_cls_to_wrap.
deepspeed (`str` or `dict`, *optional*):
Use [Deepspeed](https://github.com/microsoft/deepspeed). This is an experimental feature and its API may
evolve in the future. The value is either the location of DeepSpeed json config file (e.g.,
`ds_config.json`) or an already loaded json file as a `dict`"
<Tip warning={true}>
If enabling any Zero-init, make sure that your model is not initialized until
*after* initializing the `TrainingArguments`, else it will not be applied.
</Tip>
accelerator_config (`str`, `dict`, or `AcceleratorConfig`, *optional*):
Config to be used with the internal `Accelerator` implementation. The value is either a location of
accelerator json config file (e.g., `accelerator_config.json`), an already loaded json file as `dict`,
or an instance of [`~trainer_pt_utils.AcceleratorConfig`].
A list of config and its options:
- split_batches (`bool`, *optional*, defaults to `False`):
Whether or not the accelerator should split the batches yielded by the dataloaders across the devices. If
`True` the actual batch size used will be the same on any kind of distributed processes, but it must be a
round multiple of the `num_processes` you are using. If `False`, actual batch size used will be the one set
in your script multiplied by the number of processes.
- dispatch_batches (`bool`, *optional*):
If set to `True`, the dataloader prepared by the Accelerator is only iterated through on the main process
and then the batches are split and broadcast to each process. Will default to `True` for `DataLoader` whose
underlying dataset is an `IterableDataset`, `False` otherwise.
- even_batches (`bool`, *optional*, defaults to `True`):
If set to `True`, in cases where the total batch size across all processes does not exactly divide the
dataset, samples at the start of the dataset will be duplicated so the batch can be divided equally among
all workers.
- use_seedable_sampler (`bool`, *optional*, defaults to `True`):
Whether or not use a fully seedable random sampler ([`accelerate.data_loader.SeedableRandomSampler`]). Ensures
training results are fully reproducable using a different sampling technique. While seed-to-seed results
may differ, on average the differences are neglible when using multiple different seeds to compare. Should
also be ran with [`~utils.set_seed`] for the best results.
label_smoothing_factor (`float`, *optional*, defaults to 0.0):
The label smoothing factor to use. Zero means no label smoothing, otherwise the underlying onehot-encoded
labels are changed from 0s and 1s to `label_smoothing_factor/num_labels` and `1 - label_smoothing_factor +
label_smoothing_factor/num_labels` respectively.
debug (`str` or list of [`~debug_utils.DebugOption`], *optional*, defaults to `""`):
Enable one or more debug features. This is an experimental feature.
Possible options are:
- `"underflow_overflow"`: detects overflow in model's input/outputs and reports the last frames that led to
the event
- `"tpu_metrics_debug"`: print debug metrics on TPU
The options should be separated by whitespaces.
optim (`str` or [`training_args.OptimizerNames`], *optional*, defaults to `"adamw_torch"`):
The optimizer to use: adamw_hf, adamw_torch, adamw_torch_fused, adamw_apex_fused, adamw_anyprecision or
adafactor.
optim_args (`str`, *optional*):
Optional arguments that are supplied to AnyPrecisionAdamW.
group_by_length (`bool`, *optional*, defaults to `False`):
Whether or not to group together samples of roughly the same length in the training dataset (to minimize
padding applied and be more efficient). Only useful if applying dynamic padding.
length_column_name (`str`, *optional*, defaults to `"length"`):
Column name for precomputed lengths. If the column exists, grouping by length will use these values rather
than computing them on train startup. Ignored unless `group_by_length` is `True` and the dataset is an
instance of `Dataset`.
report_to (`str` or `List[str]`, *optional*, defaults to `"all"`):
The list of integrations to report the results and logs to. Supported platforms are `"azure_ml"`,
`"clearml"`, `"codecarbon"`, `"comet_ml"`, `"dagshub"`, `"dvclive"`, `"flyte"`, `"mlflow"`, `"neptune"`,
`"tensorboard"`, and `"wandb"`. Use `"all"` to report to all integrations installed, `"none"` for no
integrations.
ddp_find_unused_parameters (`bool`, *optional*):
When using distributed training, the value of the flag `find_unused_parameters` passed to
`DistributedDataParallel`. Will default to `False` if gradient checkpointing is used, `True` otherwise.
ddp_bucket_cap_mb (`int`, *optional*):
When using distributed training, the value of the flag `bucket_cap_mb` passed to `DistributedDataParallel`.
ddp_broadcast_buffers (`bool`, *optional*):
When using distributed training, the value of the flag `broadcast_buffers` passed to
`DistributedDataParallel`. Will default to `False` if gradient checkpointing is used, `True` otherwise.
dataloader_pin_memory (`bool`, *optional*, defaults to `True`):
Whether you want to pin memory in data loaders or not. Will default to `True`.
dataloader_persistent_workers (`bool`, *optional*, defaults to `False`):
If True, the data loader will not shut down the worker processes after a dataset has been consumed once.
This allows to maintain the workers Dataset instances alive. Can potentially speed up training, but will
increase RAM usage. Will default to `False`.
dataloader_prefetch_factor (`int`, *optional*):
Number of batches loaded in advance by each worker.
2 means there will be a total of 2 * num_workers batches prefetched across all workers.
skip_memory_metrics (`bool`, *optional*, defaults to `True`):
Whether to skip adding of memory profiler reports to metrics. This is skipped by default because it slows
down the training and evaluation speed.
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push the model to the Hub every time the model is saved. If this is activated,
`output_dir` will begin a git directory synced with the repo (determined by `hub_model_id`) and the content
will be pushed each time a save is triggered (depending on your `save_strategy`). Calling
[`~Trainer.save_model`] will also trigger a push.
<Tip warning={true}>
If `output_dir` exists, it needs to be a local clone of the repository to which the [`Trainer`] will be
pushed.
</Tip>
resume_from_checkpoint (`str`, *optional*):
The path to a folder with a valid checkpoint for your model. This argument is not directly used by
[`Trainer`], it's intended to be used by your training/evaluation scripts instead. See the [example
scripts](https://github.com/huggingface/transformers/tree/main/examples) for more details.
hub_model_id (`str`, *optional*):
The name of the repository to keep in sync with the local *output_dir*. It can be a simple model ID in
which case the model will be pushed in your namespace. Otherwise it should be the whole repository name,
for instance `"user_name/model"`, which allows you to push to an organization you are a member of with
`"organization_name/model"`. Will default to `user_name/output_dir_name` with *output_dir_name* being the
name of `output_dir`.
Will default to the name of `output_dir`.
hub_strategy (`str` or [`~trainer_utils.HubStrategy`], *optional*, defaults to `"every_save"`):
Defines the scope of what is pushed to the Hub and when. Possible values are:
- `"end"`: push the model, its configuration, the tokenizer (if passed along to the [`Trainer`]) and a
draft of a model card when the [`~Trainer.save_model`] method is called.
- `"every_save"`: push the model, its configuration, the tokenizer (if passed along to the [`Trainer`]) and
a draft of a model card each time there is a model save. The pushes are asynchronous to not block
training, and in case the save are very frequent, a new push is only attempted if the previous one is
finished. A last push is made with the final model at the end of training.
- `"checkpoint"`: like `"every_save"` but the latest checkpoint is also pushed in a subfolder named
last-checkpoint, allowing you to resume training easily with
`trainer.train(resume_from_checkpoint="last-checkpoint")`.
- `"all_checkpoints"`: like `"checkpoint"` but all checkpoints are pushed like they appear in the output
folder (so you will get one checkpoint folder per folder in your final repository)
hub_token (`str`, *optional*):
The token to use to push the model to the Hub. Will default to the token in the cache folder obtained with
`huggingface-cli login`.
hub_private_repo (`bool`, *optional*, defaults to `False`):
If True, the Hub repo will be set to private.
hub_always_push (`bool`, *optional*, defaults to `False`):
Unless this is `True`, the `Trainer` will skip pushing a checkpoint when the previous push is not finished.
gradient_checkpointing (`bool`, *optional*, defaults to `False`):
If True, use gradient checkpointing to save memory at the expense of slower backward pass.
gradient_checkpointing_kwargs (`dict`, *optional*, defaults to `None`):
Key word arguments to be passed to the `gradient_checkpointing_enable` method.
include_inputs_for_metrics (`bool`, *optional*, defaults to `False`):
Whether or not the inputs will be passed to the `compute_metrics` function. This is intended for metrics
that need inputs, predictions and references for scoring calculation in Metric class.
eval_do_concat_batches (`bool`, *optional*, defaults to `True`):
Whether to recursively concat inputs/losses/labels/predictions across batches. If `False`,
will instead store them as lists, with each batch kept separate.
auto_find_batch_size (`bool`, *optional*, defaults to `False`)
Whether to find a batch size that will fit into memory automatically through exponential decay, avoiding
CUDA Out-of-Memory errors. Requires accelerate to be installed (`pip install accelerate`)
full_determinism (`bool`, *optional*, defaults to `False`)
If `True`, [`enable_full_determinism`] is called instead of [`set_seed`] to ensure reproducible results in
distributed training. Important: this will negatively impact the performance, so only use it for debugging.
torchdynamo (`str`, *optional*):
If set, the backend compiler for TorchDynamo. Possible choices are `"eager"`, `"aot_eager"`, `"inductor"`,
`"nvfuser"`, `"aot_nvfuser"`, `"aot_cudagraphs"`, `"ofi"`, `"fx2trt"`, `"onnxrt"` and `"ipex"`.
ray_scope (`str`, *optional*, defaults to `"last"`):
The scope to use when doing hyperparameter search with Ray. By default, `"last"` will be used. Ray will
then use the last checkpoint of all trials, compare those, and select the best one. However, other options
are also available. See the [Ray documentation](
https://docs.ray.io/en/latest/tune/api_docs/analysis.html#ray.tune.ExperimentAnalysis.get_best_trial) for
more options.
ddp_timeout (`int`, *optional*, defaults to 1800):
The timeout for `torch.distributed.init_process_group` calls, used to avoid GPU socket timeouts when
performing slow operations in distributed runnings. Please refer the [PyTorch documentation]
(https://pytorch.org/docs/stable/distributed.html#torch.distributed.init_process_group) for more
information.
use_mps_device (`bool`, *optional*, defaults to `False`):
This argument is deprecated.`mps` device will be used if it is available similar to `cuda` device.
torch_compile (`bool`, *optional*, defaults to `False`):
Whether or not to compile the model using PyTorch 2.0
[`torch.compile`](https://pytorch.org/get-started/pytorch-2.0/).
This will use the best defaults for the [`torch.compile`
API](https://pytorch.org/docs/stable/generated/torch.compile.html?highlight=torch+compile#torch.compile).
You can customize the defaults with the argument `torch_compile_backend` and `torch_compile_mode` but we
don't guarantee any of them will work as the support is progressively rolled in in PyTorch.
This flag and the whole compile API is experimental and subject to change in future releases.
torch_compile_backend (`str`, *optional*):
The backend to use in `torch.compile`. If set to any value, `torch_compile` will be set to `True`.
Refer to the PyTorch doc for possible values and note that they may change across PyTorch versions.
This flag is experimental and subject to change in future releases.
torch_compile_mode (`str`, *optional*):
The mode to use in `torch.compile`. If set to any value, `torch_compile` will be set to `True`.
Refer to the PyTorch doc for possible values and note that they may change across PyTorch versions.
This flag is experimental and subject to change in future releases.
split_batches (`bool`, *optional*):
Whether or not the accelerator should split the batches yielded by the dataloaders across the devices
during distributed training. If
set to `True`, the actual batch size used will be the same on any kind of distributed processes, but it
must be a
round multiple of the number of processes you are using (such as GPUs).
include_tokens_per_second (`bool`, *optional*):
Whether or not to compute the number of tokens per second per device for training speed metrics.
This will iterate over the entire training dataloader once beforehand,
and will slow down the entire process.
include_num_input_tokens_seen (`bool`, *optional*):
Whether or not to track the number of input tokens seen throughout training.
May be slower in distributed training as gather operations must be called.
neftune_noise_alpha (`Optional[float]`):
If not `None`, this will activate NEFTune noise embeddings. This can drastically improve model performance
for instruction fine-tuning. Check out the [original paper](https://arxiv.org/abs/2310.05914) and the
[original code](https://github.com/neelsjain/NEFTune). Support transformers `PreTrainedModel` and also
`PeftModel` from peft.
optim_target_modules (`Union[str, List[str]]`, *optional*):
The target modules to optimize, i.e. the module names that you would like to train, right now this is used only for GaLore algorithm
https://arxiv.org/abs/2403.03507
See: https://github.com/jiaweizzhao/GaLore for more details. You need to make sure to pass a valid GaloRe
optimizer, e.g. one of: "galore_adamw", "galore_adamw_8bit", "galore_adafactor" and make sure that the target modules are `nn.Linear` modules
only.
"""
framework = "pt"
output_dir: str = field(
metadata={"help": "The output directory where the model predictions and checkpoints will be written."},
)
overwrite_output_dir: bool = field(
default=False,
metadata={
"help": (
"Overwrite the content of the output directory. "
"Use this to continue training if output_dir points to a checkpoint directory."
)
},
)
do_train: bool = field(default=False, metadata={"help": "Whether to run training."})
do_eval: bool = field(default=False, metadata={"help": "Whether to run eval on the dev set."})
do_predict: bool = field(default=False, metadata={"help": "Whether to run predictions on the test set."})
eval_strategy: Union[IntervalStrategy, str] = field(
default="no",
metadata={"help": "The evaluation strategy to use."},
)
prediction_loss_only: bool = field(
default=False,
metadata={"help": "When performing evaluation and predictions, only returns the loss."},
)
per_device_train_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU/MPS/NPU core/CPU for training."}
)
per_device_eval_batch_size: int = field(
default=8, metadata={"help": "Batch size per GPU/TPU/MPS/NPU core/CPU for evaluation."}
)
per_gpu_train_batch_size: Optional[int] = field(
default=None,
metadata={
"help": (
"Deprecated, the use of `--per_device_train_batch_size` is preferred. "
"Batch size per GPU/TPU core/CPU for training."
)
},
)
per_gpu_eval_batch_size: Optional[int] = field(
default=None,
metadata={
"help": (
"Deprecated, the use of `--per_device_eval_batch_size` is preferred. "
"Batch size per GPU/TPU core/CPU for evaluation."
)
},
)
gradient_accumulation_steps: int = field(
default=1,
metadata={"help": "Number of updates steps to accumulate before performing a backward/update pass."},
)
eval_accumulation_steps: Optional[int] = field(
default=None,
metadata={"help": "Number of predictions steps to accumulate before moving the tensors to the CPU."},
)
eval_delay: Optional[float] = field(
default=0,
metadata={
"help": (
"Number of epochs or steps to wait for before the first evaluation can be performed, depending on the"
" eval_strategy."
)
},
)
learning_rate: float = field(default=5e-5, metadata={"help": "The initial learning rate for AdamW."})
weight_decay: float = field(default=0.0, metadata={"help": "Weight decay for AdamW if we apply some."})
adam_beta1: float = field(default=0.9, metadata={"help": "Beta1 for AdamW optimizer"})
adam_beta2: float = field(default=0.999, metadata={"help": "Beta2 for AdamW optimizer"})
adam_epsilon: float = field(default=1e-8, metadata={"help": "Epsilon for AdamW optimizer."})
max_grad_norm: float = field(default=1.0, metadata={"help": "Max gradient norm."})
num_train_epochs: float = field(default=3.0, metadata={"help": "Total number of training epochs to perform."})
max_steps: int = field(
default=-1,
metadata={"help": "If > 0: set total number of training steps to perform. Override num_train_epochs."},
)
lr_scheduler_type: Union[SchedulerType, str] = field(
default="linear",
metadata={"help": "The scheduler type to use."},
)
lr_scheduler_kwargs: Optional[Union[dict, str]] = field(
default_factory=dict,
metadata={
"help": (
"Extra parameters for the lr_scheduler such as {'num_cycles': 1} for the cosine with hard restarts."
)
},
)
warmup_ratio: float = field(
default=0.0, metadata={"help": "Linear warmup over warmup_ratio fraction of total steps."}
)
warmup_steps: int = field(default=0, metadata={"help": "Linear warmup over warmup_steps."})
log_level: Optional[str] = field(
default="passive",
metadata={
"help": (
"Logger log level to use on the main node. Possible choices are the log levels as strings: 'debug',"
" 'info', 'warning', 'error' and 'critical', plus a 'passive' level which doesn't set anything and"
" lets the application set the level. Defaults to 'passive'."
),
"choices": trainer_log_levels.keys(),
},
)
log_level_replica: Optional[str] = field(
default="warning",
metadata={
"help": "Logger log level to use on replica nodes. Same choices and defaults as ``log_level``",
"choices": trainer_log_levels.keys(),
},
)
log_on_each_node: bool = field(
default=True,
metadata={
"help": (
"When doing a multinode distributed training, whether to log once per node or just once on the main"
" node."
)
},
)
logging_dir: Optional[str] = field(default=None, metadata={"help": "Tensorboard log dir."})
logging_strategy: Union[IntervalStrategy, str] = field(
default="steps",
metadata={"help": "The logging strategy to use."},
)
logging_first_step: bool = field(default=False, metadata={"help": "Log the first global_step"})
logging_steps: float = field(
default=500,
metadata={
"help": (
"Log every X updates steps. Should be an integer or a float in range `[0,1)`. "
"If smaller than 1, will be interpreted as ratio of total training steps."
)
},
)
logging_nan_inf_filter: bool = field(default=True, metadata={"help": "Filter nan and inf losses for logging."})
save_strategy: Union[IntervalStrategy, str] = field(
default="steps",
metadata={"help": "The checkpoint save strategy to use."},
)
save_steps: float = field(
default=500,
metadata={
"help": (
"Save checkpoint every X updates steps. Should be an integer or a float in range `[0,1)`. "
"If smaller than 1, will be interpreted as ratio of total training steps."
)
},
)
save_total_limit: Optional[int] = field(
default=None,
metadata={
"help": (
"If a value is passed, will limit the total amount of checkpoints. Deletes the older checkpoints in"
" `output_dir`. When `load_best_model_at_end` is enabled, the 'best' checkpoint according to"
" `metric_for_best_model` will always be retained in addition to the most recent ones. For example,"
" for `save_total_limit=5` and `load_best_model_at_end=True`, the four last checkpoints will always be"
" retained alongside the best model. When `save_total_limit=1` and `load_best_model_at_end=True`,"
" it is possible that two checkpoints are saved: the last one and the best one (if they are different)."
" Default is unlimited checkpoints"
)
},
)
save_safetensors: Optional[bool] = field(
default=True,
metadata={
"help": "Use safetensors saving and loading for state dicts instead of default torch.load and torch.save."
},
)
save_on_each_node: bool = field(
default=False,
metadata={
"help": (
"When doing multi-node distributed training, whether to save models and checkpoints on each node, or"
" only on the main one"
)
},
)
save_only_model: bool = field(
default=False,
metadata={
"help": (
"When checkpointing, whether to only save the model, or also the optimizer, scheduler & rng state."
"Note that when this is true, you won't be able to resume training from checkpoint."
"This enables you to save storage by not storing the optimizer, scheduler & rng state."
"You can only load the model using from_pretrained with this option set to True."
)
},
)
restore_callback_states_from_checkpoint: bool = field(
default=False,
metadata={
"help": "Whether to restore the callback states from the checkpoint. If `True`, will override callbacks passed to the `Trainer` if they exist in the checkpoint."
},
)
no_cuda: bool = field(
default=False,
metadata={"help": "This argument is deprecated. It will be removed in version 5.0 of 🤗 Transformers."},
)
use_cpu: bool = field(
default=False,
metadata={
"help": " Whether or not to use cpu. If set to False, we will use cuda/tpu/mps/npu device if available."
},
)
use_mps_device: bool = field(
default=False,
metadata={
"help": "This argument is deprecated. `mps` device will be used if available similar to `cuda` device."
" It will be removed in version 5.0 of 🤗 Transformers"
},
)
seed: int = field(default=42, metadata={"help": "Random seed that will be set at the beginning of training."})
data_seed: Optional[int] = field(default=None, metadata={"help": "Random seed to be used with data samplers."})
jit_mode_eval: bool = field(
default=False, metadata={"help": "Whether or not to use PyTorch jit trace for inference"}
)
use_ipex: bool = field(
default=False,
metadata={
"help": (
"Use Intel extension for PyTorch when it is available, installation:"
" 'https://github.com/intel/intel-extension-for-pytorch'"
)
},
)
bf16: bool = field(
default=False,
metadata={
"help": (
"Whether to use bf16 (mixed) precision instead of 32-bit. Requires Ampere or higher NVIDIA"
" architecture or using CPU (use_cpu) or Ascend NPU. This is an experimental API and it may change."
)
},
)
fp16: bool = field(
default=False,
metadata={"help": "Whether to use fp16 (mixed) precision instead of 32-bit"},
)
fp16_opt_level: str = field(
default="O1",
metadata={
"help": (
"For fp16: Apex AMP optimization level selected in ['O0', 'O1', 'O2', and 'O3']. "
"See details at https://nvidia.github.io/apex/amp.html"
)
},
)
half_precision_backend: str = field(
default="auto",
metadata={
"help": "The backend to be used for half precision.",
"choices": ["auto", "apex", "cpu_amp"],
},
)
bf16_full_eval: bool = field(
default=False,
metadata={
"help": (
"Whether to use full bfloat16 evaluation instead of 32-bit. This is an experimental API and it may"
" change."
)
},
)
fp16_full_eval: bool = field(
default=False,
metadata={"help": "Whether to use full float16 evaluation instead of 32-bit"},
)
tf32: Optional[bool] = field(
default=None,
metadata={
"help": (
"Whether to enable tf32 mode, available in Ampere and newer GPU architectures. This is an experimental"
" API and it may change."
)
},
)
local_rank: int = field(default=-1, metadata={"help": "For distributed training: local_rank"})
ddp_backend: Optional[str] = field(
default=None,
metadata={
"help": "The backend to be used for distributed training",
"choices": ["nccl", "gloo", "mpi", "ccl", "hccl", "cncl"],
},
)
tpu_num_cores: Optional[int] = field(
default=None, metadata={"help": "TPU: Number of TPU cores (automatically passed by launcher script)"}
)
tpu_metrics_debug: bool = field(
default=False,
metadata={
"help": (
"Deprecated, the use of `--debug tpu_metrics_debug` is preferred. TPU: Whether to print debug metrics"
)
},
)
debug: Union[str, List[DebugOption]] = field(
default="",
metadata={
"help": (
"Whether or not to enable debug mode. Current options: "
"`underflow_overflow` (Detect underflow and overflow in activations and weights), "
"`tpu_metrics_debug` (print debug metrics on TPU)."
)
},
)
dataloader_drop_last: bool = field(
default=False, metadata={"help": "Drop the last incomplete batch if it is not divisible by the batch size."}
)
eval_steps: Optional[float] = field(
default=None,
metadata={
"help": (
"Run an evaluation every X steps. Should be an integer or a float in range `[0,1)`. "
"If smaller than 1, will be interpreted as ratio of total training steps."
)
},
)
dataloader_num_workers: int = field(
default=0,
metadata={
"help": (
"Number of subprocesses to use for data loading (PyTorch only). 0 means that the data will be loaded"
" in the main process."
)
},
)
dataloader_prefetch_factor: Optional[int] = field(
default=None if not is_torch_available() or is_torch_greater_or_equal_than_2_0 else 2,
metadata={
"help": (
"Number of batches loaded in advance by each worker. "
"2 means there will be a total of 2 * num_workers batches prefetched across all workers. "
"Default is 2 for PyTorch < 2.0.0 and otherwise None."
)
},
)
past_index: int = field(
default=-1,
metadata={"help": "If >=0, uses the corresponding part of the output as the past state for next step."},
)
run_name: Optional[str] = field(
default=None, metadata={"help": "An optional descriptor for the run. Notably used for wandb logging."}
)
disable_tqdm: Optional[bool] = field(
default=None, metadata={"help": "Whether or not to disable the tqdm progress bars."}
)
remove_unused_columns: Optional[bool] = field(
default=True, metadata={"help": "Remove columns not required by the model when using an nlp.Dataset."}
)
label_names: Optional[List[str]] = field(
default=None, metadata={"help": "The list of keys in your dictionary of inputs that correspond to the labels."}
)
load_best_model_at_end: Optional[bool] = field(
default=False,
metadata={
"help": (
"Whether or not to load the best model found during training at the end of training. When this option"
" is enabled, the best checkpoint will always be saved. See `save_total_limit` for more."
)
},
)
metric_for_best_model: Optional[str] = field(
default=None, metadata={"help": "The metric to use to compare two different models."}
)
greater_is_better: Optional[bool] = field(
default=None, metadata={"help": "Whether the `metric_for_best_model` should be maximized or not."}
)
ignore_data_skip: bool = field(
default=False,
metadata={
"help": (
"When resuming training, whether or not to skip the first epochs and batches to get to the same"
" training data."
)
},
)
fsdp: Optional[Union[List[FSDPOption], str]] = field(
default="",
metadata={
"help": (
"Whether or not to use PyTorch Fully Sharded Data Parallel (FSDP) training (in distributed training"
" only). The base option should be `full_shard`, `shard_grad_op` or `no_shard` and you can add"
" CPU-offload to `full_shard` or `shard_grad_op` like this: full_shard offload` or `shard_grad_op"
" offload`. You can add auto-wrap to `full_shard` or `shard_grad_op` with the same syntax: full_shard"
" auto_wrap` or `shard_grad_op auto_wrap`."
),
},
)
fsdp_min_num_params: int = field(
default=0,
metadata={
"help": (
"This parameter is deprecated. FSDP's minimum number of parameters for Default Auto Wrapping. (useful"
" only when `fsdp` field is passed)."
)
},
)
fsdp_config: Optional[Union[dict, str]] = field(
default=None,
metadata={
"help": (
"Config to be used with FSDP (Pytorch Fully Sharded Data Parallel). The value is either a "
"fsdp json config file (e.g., `fsdp_config.json`) or an already loaded json file as `dict`."
)
},
)
fsdp_transformer_layer_cls_to_wrap: Optional[str] = field(
default=None,
metadata={
"help": (
"This parameter is deprecated. Transformer layer class name (case-sensitive) to wrap, e.g,"
" `BertLayer`, `GPTJBlock`, `T5Block` .... (useful only when `fsdp` flag is passed)."
)
},
)
accelerator_config: Optional[Union[dict, str]] = field(
default=None,
metadata={
"help": (
"Config to be used with the internal Accelerator object initializtion. The value is either a "
"accelerator json config file (e.g., `accelerator_config.json`) or an already loaded json file as `dict`."
)
},
)
deepspeed: Optional[Union[dict, str]] = field(
default=None,
metadata={
"help": (
"Enable deepspeed and pass the path to deepspeed json config file (e.g. `ds_config.json`) or an already"
" loaded json file as a dict"
)
},
)
label_smoothing_factor: float = field(
default=0.0, metadata={"help": "The label smoothing epsilon to apply (zero means no label smoothing)."}
)
default_optim = "adamw_torch"
# XXX: enable when pytorch==2.0.1 comes out - we want to give it time to get all the bugs sorted out
# if is_torch_available() and version.parse(version.parse(torch.__version__).base_version) >= version.parse("2.1.0"):
# default_optim = "adamw_torch_fused"
# and update the doc above to:
# optim (`str` or [`training_args.OptimizerNames`], *optional*, defaults to `"adamw_torch_fused"` (for torch<2.1.0 `"adamw_torch"`):
optim: Union[OptimizerNames, str] = field(
default=default_optim,
metadata={"help": "The optimizer to use."},
)
optim_args: Optional[str] = field(default=None, metadata={"help": "Optional arguments to supply to optimizer."})
adafactor: bool = field(default=False, metadata={"help": "Whether or not to replace AdamW by Adafactor."})
group_by_length: bool = field(
default=False,
metadata={"help": "Whether or not to group samples of roughly the same length together when batching."},
)
length_column_name: Optional[str] = field(
default="length",
metadata={"help": "Column name with precomputed lengths to use when grouping by length."},
)
report_to: Union[None, str, List[str]] = field(
default=None, metadata={"help": "The list of integrations to report the results and logs to."}
)
ddp_find_unused_parameters: Optional[bool] = field(
default=None,
metadata={
"help": (
"When using distributed training, the value of the flag `find_unused_parameters` passed to "
"`DistributedDataParallel`."
)
},
)
ddp_bucket_cap_mb: Optional[int] = field(
default=None,
metadata={
"help": (
"When using distributed training, the value of the flag `bucket_cap_mb` passed to "
"`DistributedDataParallel`."
)
},
)
ddp_broadcast_buffers: Optional[bool] = field(
default=None,
metadata={
"help": (
"When using distributed training, the value of the flag `broadcast_buffers` passed to "
"`DistributedDataParallel`."
)
},
)
dataloader_pin_memory: bool = field(
default=True, metadata={"help": "Whether or not to pin memory for DataLoader."}
)
dataloader_persistent_workers: bool = field(
default=False,
metadata={
"help": "If True, the data loader will not shut down the worker processes after a dataset has been consumed once. This allows to maintain the workers Dataset instances alive. Can potentially speed up training, but will increase RAM usage."
},
)
skip_memory_metrics: bool = field(
default=True, metadata={"help": "Whether or not to skip adding of memory profiler reports to metrics."}
)
use_legacy_prediction_loop: bool = field(
default=False, metadata={"help": "Whether or not to use the legacy prediction_loop in the Trainer."}
)
push_to_hub: bool = field(
default=False, metadata={"help": "Whether or not to upload the trained model to the model hub after training."}
)
resume_from_checkpoint: Optional[str] = field(
default=None,
metadata={"help": "The path to a folder with a valid checkpoint for your model."},
)
hub_model_id: Optional[str] = field(
default=None, metadata={"help": "The name of the repository to keep in sync with the local `output_dir`."}
)
hub_strategy: Union[HubStrategy, str] = field(
default="every_save",
metadata={"help": "The hub strategy to use when `--push_to_hub` is activated."},
)
hub_token: Optional[str] = field(default=None, metadata={"help": "The token to use to push to the Model Hub."})
hub_private_repo: bool = field(default=False, metadata={"help": "Whether the model repository is private or not."})
hub_always_push: bool = field(
default=False,
metadata={"help": "Unless `True`, the Trainer will skip pushes if the previous one wasn't finished yet."},
)
gradient_checkpointing: bool = field(
default=False,
metadata={
"help": "If True, use gradient checkpointing to save memory at the expense of slower backward pass."
},
)
gradient_checkpointing_kwargs: Optional[Union[dict, str]] = field(
default=None,
metadata={
"help": "Gradient checkpointing key word arguments such as `use_reentrant`. Will be passed to `torch.utils.checkpoint.checkpoint` through `model.gradient_checkpointing_enable`."
},
)
include_inputs_for_metrics: bool = field(
default=False, metadata={"help": "Whether or not the inputs will be passed to the `compute_metrics` function."}
)
eval_do_concat_batches: bool = field(
default=True,
metadata={
"help": "Whether to recursively concat inputs/losses/labels/predictions across batches. If `False`, will instead store them as lists, with each batch kept separate."
},
)
# Deprecated arguments
fp16_backend: str = field(
default="auto",
metadata={
"help": "Deprecated. Use half_precision_backend instead",
"choices": ["auto", "apex", "cpu_amp"],
},
)
evaluation_strategy: Union[IntervalStrategy, str] = field(
default=None,
metadata={"help": "Deprecated. Use `eval_strategy` instead"},
)
push_to_hub_model_id: Optional[str] = field(
default=None, metadata={"help": "The name of the repository to which push the `Trainer`."}
)
push_to_hub_organization: Optional[str] = field(
default=None, metadata={"help": "The name of the organization in with to which push the `Trainer`."}
)
push_to_hub_token: Optional[str] = field(
default=None, metadata={"help": "The token to use to push to the Model Hub."}
)
_n_gpu: int = field(init=False, repr=False, default=-1)
mp_parameters: str = field(
default="",
metadata={"help": "Used by the SageMaker launcher to send mp-specific args. Ignored in Trainer"},
)
auto_find_batch_size: bool = field(
default=False,
metadata={
"help": (
"Whether to automatically decrease the batch size in half and rerun the training loop again each time"
" a CUDA Out-of-Memory was reached"
)
},
)
full_determinism: bool = field(
default=False,
metadata={
"help": (
"Whether to call enable_full_determinism instead of set_seed for reproducibility in distributed"
" training. Important: this will negatively impact the performance, so only use it for debugging."
)
},
)
torchdynamo: Optional[str] = field(
default=None,
metadata={
"help": "This argument is deprecated, use `--torch_compile_backend` instead.",
},
)
ray_scope: Optional[str] = field(
default="last",
metadata={
"help": (
'The scope to use when doing hyperparameter search with Ray. By default, `"last"` will be used. Ray'
" will then use the last checkpoint of all trials, compare those, and select the best one. However,"
" other options are also available. See the Ray documentation"
" (https://docs.ray.io/en/latest/tune/api_docs/analysis.html"
"#ray.tune.ExperimentAnalysis.get_best_trial)"
" for more options."
)
},
)
ddp_timeout: Optional[int] = field(
default=1800,
metadata={
"help": "Overrides the default timeout for distributed training (value should be given in seconds)."
},
)
torch_compile: bool = field(
default=False, metadata={"help": "If set to `True`, the model will be wrapped in `torch.compile`."}
)
torch_compile_backend: Optional[str] = field(
default=None,
metadata={
"help": "Which backend to use with `torch.compile`, passing one will trigger a model compilation.",
},
)
torch_compile_mode: Optional[str] = field(
default=None,
metadata={
"help": "Which mode to use with `torch.compile`, passing one will trigger a model compilation.",
},
)
dispatch_batches: Optional[bool] = field(
default=None,
metadata={"help": "Deprecated. Pass {'dispatch_batches':VALUE} to `accelerator_config`."},
)
split_batches: Optional[bool] = field(
default=None,
metadata={"help": "Deprecated. Pass {'split_batches':True} to `accelerator_config`."},
)
include_tokens_per_second: Optional[bool] = field(
default=False,
metadata={"help": "If set to `True`, the speed metrics will include `tgs` (tokens per second per device)."},
)
include_num_input_tokens_seen: Optional[bool] = field(
default=False,
metadata={
"help": "If set to `True`, will track the number of input tokens seen throughout training. (May be slower in distributed training)"
},
)
neftune_noise_alpha: Optional[float] = field(
default=None,
metadata={
"help": "Activates neftune noise embeddings into the model. NEFTune has been proven to drastically improve model performances for instrcution fine-tuning. Check out the original paper here: https://arxiv.org/abs/2310.05914 and the original code here: https://github.com/neelsjain/NEFTune. Only supported for `PreTrainedModel` and `PeftModel` classes."
},
)
optim_target_modules: Union[None, str, List[str]] = field(
default=None,
metadata={
"help": "Target modules for the optimizer defined in the `optim` argument. Only used for the GaLore optimizer at the moment."
},
)
def __post_init__(self):
# Parse in args that could be `dict` sent in from the CLI as a string
for field in _VALID_DICT_FIELDS:
passed_value = getattr(self, field)
# We only want to do this if the str starts with a bracket to indiciate a `dict`
# else its likely a filename if supported
if isinstance(passed_value, str) and passed_value.startswith("{"):
loaded_dict = json.loads(passed_value)
# Convert str values to types if applicable
loaded_dict = _convert_str_dict(loaded_dict)
setattr(self, field, loaded_dict)
# expand paths, if not os.makedirs("~/bar") will make directory
# in the current directory instead of the actual home
# see https://github.com/huggingface/transformers/issues/10628
if self.output_dir is not None:
self.output_dir = os.path.expanduser(self.output_dir)
if self.logging_dir is None and self.output_dir is not None:
self.logging_dir = os.path.join(self.output_dir, default_logdir())
if self.logging_dir is not None:
self.logging_dir = os.path.expanduser(self.logging_dir)
if self.disable_tqdm is None:
self.disable_tqdm = logger.getEffectiveLevel() > logging.WARN
if self.evaluation_strategy is not None:
warnings.warn(
"`evaluation_strategy` is deprecated and will be removed in version 4.46 of 🤗 Transformers. Use `eval_strategy` instead",
FutureWarning,
)
self.eval_strategy = self.evaluation_strategy
if isinstance(self.eval_strategy, EvaluationStrategy):
warnings.warn(
"using `EvaluationStrategy` for `eval_strategy` is deprecated and will be removed in version 5"
" of 🤗 Transformers. Use `IntervalStrategy` instead",
FutureWarning,
)
# Go back to the underlying string or we won't be able to instantiate `IntervalStrategy` on it.
self.eval_strategy = self.eval_strategy.value
if self.no_cuda:
warnings.warn(
"using `no_cuda` is deprecated and will be removed in version 5.0 of 🤗 Transformers. "
"Use `use_cpu` instead",
FutureWarning,
)
self.use_cpu = self.no_cuda
self.eval_strategy = IntervalStrategy(self.eval_strategy)
self.logging_strategy = IntervalStrategy(self.logging_strategy)
self.save_strategy = IntervalStrategy(self.save_strategy)
self.hub_strategy = HubStrategy(self.hub_strategy)
self.lr_scheduler_type = SchedulerType(self.lr_scheduler_type)
if self.do_eval is False and self.eval_strategy != IntervalStrategy.NO:
self.do_eval = True
# eval_steps has to be defined and non-zero, fallbacks to logging_steps if the latter is non-zero
if self.eval_strategy == IntervalStrategy.STEPS and (self.eval_steps is None or self.eval_steps == 0):
if self.logging_steps > 0:
logger.info(f"using `logging_steps` to initialize `eval_steps` to {self.logging_steps}")
self.eval_steps = self.logging_steps
else:
raise ValueError(
f"evaluation strategy {self.eval_strategy} requires either non-zero --eval_steps or"
" --logging_steps"
)
# logging_steps must be non-zero for logging_strategy that is other than 'no'
if self.logging_strategy == IntervalStrategy.STEPS and self.logging_steps == 0:
raise ValueError(f"logging strategy {self.logging_strategy} requires non-zero --logging_steps")
if self.logging_strategy == IntervalStrategy.STEPS and self.logging_steps > 1:
if self.logging_steps != int(self.logging_steps):
raise ValueError(f"--logging_steps must be an integer if bigger than 1: {self.logging_steps}")
self.logging_steps = int(self.logging_steps)
if self.eval_strategy == IntervalStrategy.STEPS and self.eval_steps > 1:
if self.eval_steps != int(self.eval_steps):
raise ValueError(f"--eval_steps must be an integer if bigger than 1: {self.eval_steps}")
self.eval_steps = int(self.eval_steps)
if self.save_strategy == IntervalStrategy.STEPS and self.save_steps > 1:
if self.save_steps != int(self.save_steps):
raise ValueError(f"--save_steps must be an integer if bigger than 1: {self.save_steps}")
self.save_steps = int(self.save_steps)
# Sanity checks for load_best_model_at_end: we require save and eval strategies to be compatible.
if self.load_best_model_at_end:
if self.eval_strategy != self.save_strategy:
raise ValueError(
"--load_best_model_at_end requires the save and eval strategy to match, but found\n- Evaluation "
f"strategy: {self.eval_strategy}\n- Save strategy: {self.save_strategy}"
)
if self.eval_strategy == IntervalStrategy.STEPS and self.save_steps % self.eval_steps != 0:
if self.eval_steps < 1 or self.save_steps < 1:
if not (self.eval_steps < 1 and self.save_steps < 1):
raise ValueError(
"--load_best_model_at_end requires the saving steps to be a multiple of the evaluation "
"steps, which cannot get guaranteed when mixing ratio and absolute steps for save_steps "
f"{self.save_steps} and eval_steps {self.eval_steps}."
)
# Work around floating point precision issues
LARGE_MULTIPLIER = 1_000_000
if (self.save_steps * LARGE_MULTIPLIER) % (self.eval_steps * LARGE_MULTIPLIER) != 0:
raise ValueError(
"--load_best_model_at_end requires the saving steps to be a multiple of the evaluation "
f"steps, but found {self.save_steps}, which is not a multiple of {self.eval_steps}."
)
raise ValueError(
"--load_best_model_at_end requires the saving steps to be a round multiple of the evaluation "
f"steps, but found {self.save_steps}, which is not a round multiple of {self.eval_steps}."
)
safetensors_available = is_safetensors_available()
if self.save_safetensors and not safetensors_available:
raise ValueError(f"--save_safetensors={self.save_safetensors} requires safetensors to be installed!")
if not self.save_safetensors and safetensors_available:
logger.info(
f"Found safetensors installation, but --save_safetensors={self.save_safetensors}. "
f"Safetensors should be a preferred weights saving format due to security and performance reasons. "
f"If your model cannot be saved by safetensors please feel free to open an issue at "
f"https://github.com/huggingface/safetensors!"
)
if (
self.load_best_model_at_end or self.lr_scheduler_type == SchedulerType.REDUCE_ON_PLATEAU
) and self.metric_for_best_model is None:
self.metric_for_best_model = "loss"
if self.greater_is_better is None and self.metric_for_best_model is not None:
self.greater_is_better = self.metric_for_best_model not in ["loss", "eval_loss"]
if self.run_name is None:
self.run_name = self.output_dir
if self.framework == "pt" and is_torch_available():
if self.fp16_backend and self.fp16_backend != "auto":
warnings.warn(
"`fp16_backend` is deprecated and will be removed in version 5 of 🤗 Transformers. Use"
" `half_precision_backend` instead",
FutureWarning,
)
self.half_precision_backend = self.fp16_backend
if self.bf16 or self.bf16_full_eval:
if self.use_cpu and not is_torch_bf16_cpu_available() and not is_torch_xla_available():
# cpu
raise ValueError("Your setup doesn't support bf16/(cpu, tpu, neuroncore). You need torch>=1.10")
elif not self.use_cpu:
if torch.cuda.is_available() and not is_torch_bf16_gpu_available():
# gpu
raise ValueError(
"Your setup doesn't support bf16/gpu. You need torch>=1.10, using Ampere GPU with cuda>=11.0"
)
elif not is_torch_xpu_available():
# xpu
from .pytorch_utils import is_torch_greater_or_equal_than_1_12
if not is_torch_greater_or_equal_than_1_12:
raise ValueError(
"Your setup doesn't support bf16/xpu. You need torch>=1.12, using Intel XPU/GPU with IPEX installed"
)
if self.fp16 and self.bf16:
raise ValueError("At most one of fp16 and bf16 can be True, but not both")
if self.fp16_full_eval and self.bf16_full_eval:
raise ValueError("At most one of fp16 and bf16 can be True for full eval, but not both")
if self.bf16:
if self.half_precision_backend == "apex":
raise ValueError(" `--half_precision_backend apex`: GPU bf16 is not supported by apex.")
if self.lr_scheduler_type == SchedulerType.REDUCE_ON_PLATEAU:
if self.eval_strategy == IntervalStrategy.NO:
raise ValueError("lr_scheduler_type reduce_lr_on_plateau requires an eval strategy")
if not is_torch_available():
raise ValueError("lr_scheduler_type reduce_lr_on_plateau requires torch>=0.2.0")
self.optim = OptimizerNames(self.optim)
if self.adafactor:
warnings.warn(
"`--adafactor` is deprecated and will be removed in version 5 of 🤗 Transformers. Use `--optim"
" adafactor` instead",
FutureWarning,
)
self.optim = OptimizerNames.ADAFACTOR
if self.optim == OptimizerNames.ADAMW_TORCH_FUSED and is_torch_available():
if version.parse(version.parse(torch.__version__).base_version) < version.parse("2.0.0"):
raise ValueError("--optim adamw_torch_fused requires PyTorch 2.0 or higher")
# there is a bug in fp16/AMP in pt-2.0.0
if version.parse(version.parse(torch.__version__).base_version) == version.parse("2.0.0") and self.fp16:
raise ValueError("--optim adamw_torch_fused with --fp16 requires PyTorch>2.0")
if (
self.framework == "pt"
and is_torch_available()
and (self.device.type == "cpu" and not is_torch_greater_or_equal_than_2_3)
and (self.device.type != "cuda")
and (self.device.type != "mlu")
and (self.device.type != "npu")
and (self.device.type != "xpu")
and (get_xla_device_type(self.device) not in ["GPU", "CUDA"])
and (self.fp16 or self.fp16_full_eval)
):
raise ValueError(
"FP16 Mixed precision training with AMP or APEX (`--fp16`) and FP16 half precision evaluation"
" (`--fp16_full_eval`) can only be used on CUDA or MLU devices or NPU devices or certain XPU devices (with IPEX)."
)
if (
self.framework == "pt"
and is_torch_available()
and (self.device.type != "cuda")
and (self.device.type != "mlu")
and (self.device.type != "npu")
and (self.device.type != "xpu")
and (get_xla_device_type(self.device) not in ["GPU", "CUDA"])
and (get_xla_device_type(self.device) != "TPU")
and (self.device.type != "cpu")
and (self.bf16 or self.bf16_full_eval)
):
raise ValueError(
"BF16 Mixed precision training with AMP (`--bf16`) and BF16 half precision evaluation"
" (`--bf16_full_eval`) can only be used on CUDA, XPU (with IPEX), NPU, MLU or CPU/TPU/NeuronCore devices."
)
if self.torchdynamo is not None:
warnings.warn(
"`torchdynamo` is deprecated and will be removed in version 5 of 🤗 Transformers. Use"
" `torch_compile_backend` instead",
FutureWarning,
)
self.torch_compile_backend = self.torchdynamo
if (self.torch_compile_mode is not None or self.torch_compile_backend is not None) and not self.torch_compile:
self.torch_compile = True
if self.torch_compile and self.torch_compile_backend is None:
self.torch_compile_backend = "inductor"
# accelerate integration for torch compile
if self.torch_compile:
# set env vars for accelerate
prefix = "ACCELERATE_DYNAMO_"
os.environ[prefix + "BACKEND"] = self.torch_compile_backend
if self.torch_compile_mode is not None:
os.environ[prefix + "MODE"] = self.torch_compile_mode
if self.framework == "pt" and is_torch_available() and self.torch_compile:
if is_torch_tf32_available():
if self.tf32 is None and not self.fp16 or self.bf16:
logger.info(
"Setting TF32 in CUDA backends to speedup torch compile, you won't see any improvement"
" otherwise."
)
torch.backends.cuda.matmul.allow_tf32 = True
torch.backends.cudnn.allow_tf32 = True
else:
logger.warning(
"The speedups for torchdynamo mostly come wih GPU Ampere or higher and which is not detected here."
)
if self.framework == "pt" and is_torch_available() and self.tf32 is not None:
if self.tf32:
if is_torch_tf32_available():
torch.backends.cuda.matmul.allow_tf32 = True
torch.backends.cudnn.allow_tf32 = True
else:
raise ValueError("--tf32 requires Ampere or a newer GPU arch, cuda>=11 and torch>=1.7")
else:
if is_torch_tf32_available():
torch.backends.cuda.matmul.allow_tf32 = False
torch.backends.cudnn.allow_tf32 = False
# no need to assert on else
# if training args is specified, it will override the one specified in the accelerate config
if self.half_precision_backend != "apex":
mixed_precision_dtype = os.environ.get("ACCELERATE_MIXED_PRECISION", "no")
if self.fp16:
mixed_precision_dtype = "fp16"
elif self.bf16:
mixed_precision_dtype = "bf16"
os.environ["ACCELERATE_MIXED_PRECISION"] = mixed_precision_dtype
if self.report_to is None:
logger.info(
"The default value for the training argument `--report_to` will change in v5 (from all installed "
"integrations to none). In v5, you will need to use `--report_to all` to get the same behavior as "
"now. You should start updating your code and make this info disappear :-)."
)
self.report_to = "all"
if self.report_to == "all" or self.report_to == ["all"]:
# Import at runtime to avoid a circular import.
from .integrations import get_available_reporting_integrations
self.report_to = get_available_reporting_integrations()
elif self.report_to == "none" or self.report_to == ["none"]:
self.report_to = []
elif not isinstance(self.report_to, list):
self.report_to = [self.report_to]
if self.warmup_ratio < 0 or self.warmup_ratio > 1:
raise ValueError("warmup_ratio must lie in range [0,1]")
elif self.warmup_ratio > 0 and self.warmup_steps > 0:
logger.info(
"Both warmup_ratio and warmup_steps given, warmup_steps will override any effect of warmup_ratio"
" during training"
)
if isinstance(self.fsdp, bool):
self.fsdp = "full_shard" if self.fsdp else ""
if isinstance(self.fsdp, str):
self.fsdp = [FSDPOption(s) for s in self.fsdp.split()]
if self.fsdp == [FSDPOption.OFFLOAD]:
raise ValueError(
"`--fsdp offload` can't work on its own. It needs to be added to `--fsdp full_shard` or "
'`--fsdp shard_grad_op`. For example, `--fsdp "full_shard offload"`.'
)
elif FSDPOption.FULL_SHARD in self.fsdp and FSDPOption.SHARD_GRAD_OP in self.fsdp:
raise ValueError("`--fsdp full_shard` is not compatible with `--fsdp shard_grad_op`.")
if self.fsdp_config is None:
self.fsdp_config = {}
if isinstance(self.fsdp_config, str):
if len(self.fsdp) == 0:
warnings.warn("`--fsdp_config` is useful only when `--fsdp` is specified.")
with io.open(self.fsdp_config, "r", encoding="utf-8") as f:
self.fsdp_config = json.load(f)
for k in list(self.fsdp_config.keys()):
if k.startswith("fsdp_"):
v = self.fsdp_config.pop(k)
self.fsdp_config[k[5:]] = v
if self.fsdp_min_num_params > 0:
warnings.warn("using `--fsdp_min_num_params` is deprecated. Use fsdp_config instead ", FutureWarning)
self.fsdp_config["min_num_params"] = max(self.fsdp_config.get("min_num_params", 0), self.fsdp_min_num_params)
# if fsdp_config["transformer_layer_cls_to_wrap"] is specified as a string, convert it to a list with a single object
if isinstance(self.fsdp_config.get("transformer_layer_cls_to_wrap", None), str):
self.fsdp_config["transformer_layer_cls_to_wrap"] = [self.fsdp_config["transformer_layer_cls_to_wrap"]]
if self.fsdp_transformer_layer_cls_to_wrap is not None:
warnings.warn(
"using `--fsdp_transformer_layer_cls_to_wrap` is deprecated. Use fsdp_config instead ", FutureWarning
)
self.fsdp_config["transformer_layer_cls_to_wrap"] = self.fsdp_config.get(
"transformer_layer_cls_to_wrap", []
) + [self.fsdp_transformer_layer_cls_to_wrap]
if len(self.fsdp) == 0 and self.fsdp_config["min_num_params"] > 0:
warnings.warn("`min_num_params` is useful only when `--fsdp` is specified.")
if len(self.fsdp) == 0 and self.fsdp_config.get("transformer_layer_cls_to_wrap", None) is not None:
warnings.warn("`transformer_layer_cls_to_wrap` is useful only when `--fsdp` is specified.")
if (
len(self.fsdp) > 0
and self.fsdp_config["min_num_params"] > 0
and self.fsdp_config.get("transformer_layer_cls_to_wrap", None) is not None
):
raise ValueError("`min_num_params` and `transformer_layer_cls_to_wrap` are mutually exclusive.")
self.fsdp_config["xla"] = self.fsdp_config.get("xla", False)
self.fsdp_config["xla_fsdp_v2"] = self.fsdp_config.get("xla_fsdp_v2", False)
self.fsdp_config["xla_fsdp_grad_ckpt"] = self.fsdp_config.get("xla_fsdp_grad_ckpt", False)
if self.fsdp_config["xla"]:
if len(self.fsdp) > 0:
# store XLA fsdp configuration parameters into a dictionary
# Copy the config to avoid modifying the original config (which may be used for JSON serialization)
self.xla_fsdp_config = self.fsdp_config.get("xla_fsdp_settings", {}).copy()
# apply appropriate string to torch.dtype conversions for parameters
if "compute_dtype" in self.xla_fsdp_config:
self.xla_fsdp_config["compute_dtype"] = getattr(torch, self.xla_fsdp_config["compute_dtype"])
if "buffer_dtype" in self.xla_fsdp_config:
self.xla_fsdp_config["buffer_dtype"] = getattr(torch, self.xla_fsdp_config["buffer_dtype"])
else:
warnings.warn("XLA FSDP can be used only when `--fsdp` is specified.")
else:
if self.fsdp_config["xla_fsdp_grad_ckpt"]:
warnings.warn("`--xla_fsdp_grad_ckpt` is useful only when `--xla` is set to true.")
# accelerate integration for FSDP
if len(self.fsdp) > 0 and not self.fsdp_config["xla"]:
os.environ["ACCELERATE_USE_FSDP"] = "true"
from accelerate.utils.constants import (
FSDP_AUTO_WRAP_POLICY,
FSDP_SHARDING_STRATEGY,
)
prefix = "FSDP_"
for fsdp_option in self.fsdp:
if fsdp_option.upper() in FSDP_SHARDING_STRATEGY:
# set environment variable for FSDP sharding strategy
os.environ[f"{prefix}SHARDING_STRATEGY"] = (
str(FSDP_SHARDING_STRATEGY.index(fsdp_option.upper()) + 1)
if is_accelerate_available("0.26.0")
else fsdp_option.upper()
)
elif fsdp_option == FSDPOption.OFFLOAD:
os.environ[f"{prefix}OFFLOAD_PARAMS"] = "true"
elif fsdp_option == FSDPOption.AUTO_WRAP:
os.environ[f"{prefix}AUTO_WRAP_POLICY"] = FSDP_AUTO_WRAP_POLICY[0]
if self.fsdp_config["min_num_params"] > 0:
os.environ[f"{prefix}MIN_NUM_PARAMS"] = str(self.fsdp_config["min_num_params"])
os.environ[f"{prefix}AUTO_WRAP_POLICY"] = FSDP_AUTO_WRAP_POLICY[1]
elif self.fsdp_config.get("transformer_layer_cls_to_wrap", None) is not None:
os.environ[f"{prefix}TRANSFORMER_CLS_TO_WRAP"] = ",".join(
self.fsdp_config["transformer_layer_cls_to_wrap"]
)
prefetch_policy = self.fsdp_config.get("backward_prefetch", "NO_PREFETCH")
os.environ[f"{prefix}BACKWARD_PREFETCH"] = prefetch_policy.upper()
os.environ[f"{prefix}FORWARD_PREFETCH"] = str(self.fsdp_config.get("forward_prefetch", "false")).lower()
sync_module_states = str(self.fsdp_config.get("sync_module_states", "true")).lower()
cpu_ram_efficient_loading = str(self.fsdp_config.get("cpu_ram_efficient_loading", "false")).lower()
if sync_module_states == "false" and cpu_ram_efficient_loading == "true":
# In this case, all the processes except the main process would have random weights leading
# to unexpected behaviour during training, thus throwing error here to prevent it.
raise ValueError('`sync_module_states` must be `"True"` if `cpu_ram_efficient_loading` is `"True"`')
os.environ[f"{prefix}SYNC_MODULE_STATES"] = sync_module_states
os.environ[f"{prefix}CPU_RAM_EFFICIENT_LOADING"] = cpu_ram_efficient_loading
os.environ[f"{prefix}USE_ORIG_PARAMS"] = str(self.fsdp_config.get("use_orig_params", "true")).lower()
if is_accelerate_available():
if not isinstance(self.accelerator_config, (AcceleratorConfig)):
if self.accelerator_config is None:
self.accelerator_config = AcceleratorConfig()
elif isinstance(self.accelerator_config, dict):
self.accelerator_config = AcceleratorConfig(**self.accelerator_config)
# Check that a user didn't pass in the class instantiator
# such as `accelerator_config = AcceleratorConfig`
elif isinstance(self.accelerator_config, type):
raise NotImplementedError(
"Tried passing in a callable to `accelerator_config`, but this is not supported. "
"Please pass in a fully constructed `AcceleratorConfig` object instead."
)
else:
self.accelerator_config = AcceleratorConfig.from_json_file(self.accelerator_config)
if self.dispatch_batches is not None:
warnings.warn(
"Using `--dispatch_batches` is deprecated and will be removed in version 4.41 of 🤗 Transformers. Use"
" `--accelerator_config {'dispatch_batches':VALUE} instead",
FutureWarning,
)
self.accelerator_config.dispatch_batches = self.dispatch_batches
if self.split_batches is not None:
warnings.warn(
"Using `--split_batches` is deprecated and will be removed in version 4.41 of 🤗 Transformers. Use"
" `--accelerator_config {'split_batches':VALUE} instead",
FutureWarning,
)
self.accelerator_config.split_batches = self.split_batches
if self.tpu_metrics_debug:
warnings.warn(
"using `--tpu_metrics_debug` is deprecated and will be removed in version 5 of 🤗 Transformers. Use"
" `--debug tpu_metrics_debug` instead",
FutureWarning,
)
if self.debug is None:
self.debug = " tpu_metrics_debug"
else:
self.debug += " tpu_metrics_debug"
self.tpu_metrics_debug = False
if isinstance(self.debug, str):
self.debug = [DebugOption(s) for s in self.debug.split()]
elif self.debug is None:
self.debug = []
self.deepspeed_plugin = None
if self.deepspeed:
# - must be run very last in arg parsing, since it will use a lot of these settings.
# - must be run before the model is created.
if not is_accelerate_available():
raise ValueError("--deepspeed requires Accelerate to be installed: `pip install accelerate`.")
from transformers.integrations.deepspeed import HfTrainerDeepSpeedConfig
# will be used later by the Trainer
# note: leave self.deepspeed unmodified in case a user relies on it not to be modified)
self.hf_deepspeed_config = HfTrainerDeepSpeedConfig(self.deepspeed)
self.hf_deepspeed_config.trainer_config_process(self)
# Accelerate DeepSpeed Plugin
from accelerate.utils import DeepSpeedPlugin
os.environ["ACCELERATE_USE_DEEPSPEED"] = "true"
self.deepspeed_plugin = DeepSpeedPlugin(hf_ds_config=self.hf_deepspeed_config)
elif strtobool(os.environ.get("ACCELERATE_USE_DEEPSPEED", "false")):
# Accelerate DeepSpeed Plugin
from accelerate.utils import DeepSpeedPlugin
self.deepspeed_plugin = DeepSpeedPlugin()
mixed_precision = os.environ.get("ACCELERATE_MIXED_PRECISION", "no")
self.deepspeed_plugin.set_mixed_precision(mixed_precision)
self.deepspeed_plugin.set_deepspeed_weakref()
if self.use_cpu:
self.dataloader_pin_memory = False
if (
(not is_torch_available() or is_torch_greater_or_equal_than_2_0)
and self.dataloader_num_workers == 0
and self.dataloader_prefetch_factor is not None
):
raise ValueError(
"--dataloader_prefetch_factor can only be set when data is loaded in a different process, i.e."
" when --dataloader_num_workers > 1."
)
if self.push_to_hub_token is not None:
warnings.warn(
"`--push_to_hub_token` is deprecated and will be removed in version 5 of 🤗 Transformers. Use "
"`--hub_token` instead.",
FutureWarning,
)
self.hub_token = self.push_to_hub_token
if self.push_to_hub_model_id is not None:
self.hub_model_id = get_full_repo_name(
self.push_to_hub_model_id, organization=self.push_to_hub_organization, token=self.hub_token
)
if self.push_to_hub_organization is not None:
warnings.warn(
"`--push_to_hub_model_id` and `--push_to_hub_organization` are deprecated and will be removed in "
"version 5 of 🤗 Transformers. Use `--hub_model_id` instead and pass the full repo name to this "
f"argument (in this case {self.hub_model_id}).",
FutureWarning,
)
else:
warnings.warn(
"`--push_to_hub_model_id` is deprecated and will be removed in version 5 of 🤗 Transformers. Use "
"`--hub_model_id` instead and pass the full repo name to this argument (in this case "
f"{self.hub_model_id}).",
FutureWarning,
)
elif self.push_to_hub_organization is not None:
self.hub_model_id = f"{self.push_to_hub_organization}/{Path(self.output_dir).name}"
warnings.warn(
"`--push_to_hub_organization` is deprecated and will be removed in version 5 of 🤗 Transformers. Use "
"`--hub_model_id` instead and pass the full repo name to this argument (in this case "
f"{self.hub_model_id}).",
FutureWarning,
)
def __str__(self):
self_as_dict = asdict(self)
# Remove deprecated arguments. That code should be removed once
# those deprecated arguments are removed from TrainingArguments. (TODO: v5)
del self_as_dict["per_gpu_train_batch_size"]
del self_as_dict["per_gpu_eval_batch_size"]
self_as_dict = {k: f"<{k.upper()}>" if k.endswith("_token") else v for k, v in self_as_dict.items()}
attrs_as_str = [f"{k}={v},\n" for k, v in sorted(self_as_dict.items())]
return f"{self.__class__.__name__}(\n{''.join(attrs_as_str)})"
__repr__ = __str__
@property
def train_batch_size(self) -> int:
"""
The actual batch size for training (may differ from `per_gpu_train_batch_size` in distributed training).
"""
if self.per_gpu_train_batch_size:
logger.warning(
"Using deprecated `--per_gpu_train_batch_size` argument which will be removed in a future "
"version. Using `--per_device_train_batch_size` is preferred."
)
per_device_batch_size = self.per_gpu_train_batch_size or self.per_device_train_batch_size
train_batch_size = per_device_batch_size * max(1, self.n_gpu)
return train_batch_size
@property
def eval_batch_size(self) -> int:
"""
The actual batch size for evaluation (may differ from `per_gpu_eval_batch_size` in distributed training).
"""
if self.per_gpu_eval_batch_size:
logger.warning(
"Using deprecated `--per_gpu_eval_batch_size` argument which will be removed in a future "
"version. Using `--per_device_eval_batch_size` is preferred."
)
per_device_batch_size = self.per_gpu_eval_batch_size or self.per_device_eval_batch_size
eval_batch_size = per_device_batch_size * max(1, self.n_gpu)
return eval_batch_size
@property
def ddp_timeout_delta(self) -> timedelta:
"""
The actual timeout for torch.distributed.init_process_group since it expects a timedelta variable.
"""
return timedelta(seconds=self.ddp_timeout)
@cached_property
def _setup_devices(self) -> "torch.device":
requires_backends(self, ["torch"])
logger.info("PyTorch: setting up devices")
if not is_sagemaker_mp_enabled():
if not is_accelerate_available():
raise ImportError(
f"Using the `Trainer` with `PyTorch` requires `accelerate>={ACCELERATE_MIN_VERSION}`: "
"Please run `pip install transformers[torch]` or `pip install accelerate -U`"
)
AcceleratorState._reset_state(reset_partial_state=True)
self.distributed_state = None
if not self.use_ipex and "ACCELERATE_USE_IPEX" not in os.environ:
os.environ["ACCELERATE_USE_IPEX"] = "false"
if self.use_cpu or strtobool(os.environ.get("ACCELERATE_USE_CPU", "False")):
self.distributed_state = PartialState(cpu=True, backend=self.ddp_backend)
self._n_gpu = 0
elif is_sagemaker_mp_enabled():
local_rank = smp.local_rank()
device = torch.device("cuda", local_rank)
self._n_gpu = 1
torch.cuda.set_device(device)
elif is_sagemaker_dp_enabled():
self.distributed_state = PartialState(_use_sagemaker_dp=True)
self._n_gpu = 1
elif self.deepspeed:
# Need to do similar for Accelerator init
os.environ["ACCELERATE_USE_DEEPSPEED"] = "true"
self.distributed_state = PartialState(timeout=timedelta(seconds=self.ddp_timeout))
del os.environ["ACCELERATE_USE_DEEPSPEED"]
self._n_gpu = 1
else:
self.distributed_state = PartialState(
backend=self.ddp_backend, timeout=timedelta(seconds=self.ddp_timeout)
)
self._n_gpu = 1
if not is_sagemaker_mp_enabled():
device = self.distributed_state.device
self.local_rank = self.distributed_state.local_process_index
if dist.is_available() and dist.is_initialized() and self.parallel_mode != ParallelMode.DISTRIBUTED:
logger.warning(
"torch.distributed process group is initialized, but parallel_mode != ParallelMode.DISTRIBUTED. "
"In order to use Torch DDP, launch your script with `python -m torch.distributed.launch"
)
if is_torch_xla_available():
device = self.distributed_state.device
self._n_gpu = 0
elif is_sagemaker_dp_enabled() or is_sagemaker_mp_enabled():
# Already set _n_gpu
pass
elif self.distributed_state.distributed_type == DistributedType.NO:
if self.use_mps_device:
warnings.warn(
"`use_mps_device` is deprecated and will be removed in version 5.0 of 🤗 Transformers. "
"`mps` device will be used by default if available similar to the way `cuda` device is used."
"Therefore, no action from user is required. "
)
if device.type != "mps":
raise ValueError(
"Either you do not have an MPS-enabled device on this machine or MacOS version is not 12.3+ "
"or current PyTorch install was not built with MPS enabled."
)
if device.type == "mps":
self._n_gpu = 1
elif self.use_cpu:
device = torch.device("cpu")
self._n_gpu = 0
elif is_torch_xpu_available():
device = torch.device("xpu:0")
torch.xpu.set_device(device)
self._n_gpu = 1
elif is_torch_mlu_available():
device = torch.device("mlu:0")
torch.mlu.set_device(device)
self._n_gpu = 1
elif is_torch_npu_available():
device = torch.device("npu:0")
torch.npu.set_device(device)
self._n_gpu = 1
else:
# if n_gpu is > 1 we'll use nn.DataParallel.
# If you only want to use a specific subset of GPUs use `CUDA_VISIBLE_DEVICES=0`
# Explicitly set CUDA to the first (index 0) CUDA device, otherwise `set_device` will
# trigger an error that a device index is missing. Index 0 takes into account the
# GPUs available in the environment, so `CUDA_VISIBLE_DEVICES=1,2` with `cuda:0`
# will use the first GPU in that env, i.e. GPU#1
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
# Sometimes the line in the postinit has not been run before we end up here, so just checking we're not at
# the default value.
self._n_gpu = torch.cuda.device_count()
if device.type == "cuda":
torch.cuda.set_device(device)
return device
@property
def device(self) -> "torch.device":
"""
The device used by this process.
"""
requires_backends(self, ["torch"])
return self._setup_devices
@property
def n_gpu(self):
"""
The number of GPUs used by this process.
Note:
This will only be greater than one when you have multiple GPUs available but are not using distributed
training. For distributed training, it will always be 1.
"""
requires_backends(self, ["torch"])
# Make sure `self._n_gpu` is properly setup.
if not hasattr(self, "_n_gpu"):
_ = self._setup_devices
return self._n_gpu
@property
def parallel_mode(self):
"""
The current mode used for parallelism if multiple GPUs/TPU cores are available. One of:
- `ParallelMode.NOT_PARALLEL`: no parallelism (CPU or one GPU).
- `ParallelMode.NOT_DISTRIBUTED`: several GPUs in one single process (uses `torch.nn.DataParallel`).
- `ParallelMode.DISTRIBUTED`: several GPUs, each having its own process (uses
`torch.nn.DistributedDataParallel`).
- `ParallelMode.TPU`: several TPU cores.
"""
requires_backends(self, ["torch"])
if is_torch_xla_available():
return ParallelMode.TPU
elif is_sagemaker_mp_enabled():
return ParallelMode.SAGEMAKER_MODEL_PARALLEL
elif is_sagemaker_dp_enabled():
return ParallelMode.SAGEMAKER_DATA_PARALLEL
elif (
self.distributed_state is not None and self.distributed_state.distributed_type != DistributedType.NO
) or (self.distributed_state is None and self.local_rank != -1):
return ParallelMode.DISTRIBUTED
elif self.n_gpu > 1:
return ParallelMode.NOT_DISTRIBUTED
else:
return ParallelMode.NOT_PARALLEL
@property
def world_size(self):
"""
The number of processes used in parallel.
"""
requires_backends(self, ["torch"])
if self.distributed_state is not None:
return self.distributed_state.num_processes
elif is_sagemaker_mp_enabled():
return smp.dp_size() if not smp.state.cfg.prescaled_batch else smp.rdp_size()
return 1
@property
def process_index(self):
"""
The index of the current process used.
"""
requires_backends(self, ["torch"])
if self.distributed_state is not None:
return self.distributed_state.process_index
elif is_sagemaker_mp_enabled():
return smp.dp_rank() if not smp.state.cfg.prescaled_batch else smp.rdp_rank()
return 0
@property
def local_process_index(self):
"""
The index of the local process used.
"""
requires_backends(self, ["torch"])
if self.distributed_state is not None:
return self.distributed_state.local_process_index
elif is_sagemaker_mp_enabled():
return smp.local_rank()
return 0
@property
def should_log(self):
"""
Whether or not the current process should produce log.
"""
if self.log_on_each_node:
return self.local_process_index == 0
else:
if is_sagemaker_mp_enabled():
return smp.rank() == 0
else:
return self.process_index == 0
@property
def should_save(self):
"""
Whether or not the current process should write to disk, e.g., to save models and checkpoints.
"""
if self.save_on_each_node:
return self.local_process_index == 0
else:
if is_sagemaker_mp_enabled():
return smp.rank() == 0
else:
return self.process_index == 0
def get_process_log_level(self):
"""
Returns the log level to be used depending on whether this process is the main process of node 0, main process
of node non-0, or a non-main process.
For the main process the log level defaults to the logging level set (`logging.WARNING` if you didn't do
anything) unless overridden by `log_level` argument.
For the replica processes the log level defaults to `logging.WARNING` unless overridden by `log_level_replica`
argument.
The choice between the main and replica process settings is made according to the return value of `should_log`.
"""
# convert to int
log_level = trainer_log_levels[self.log_level]
log_level_replica = trainer_log_levels[self.log_level_replica]
log_level_main_node = logging.get_verbosity() if log_level == -1 else log_level
log_level_replica_node = logging.get_verbosity() if log_level_replica == -1 else log_level_replica
return log_level_main_node if self.should_log else log_level_replica_node
@property
def place_model_on_device(self):
"""
Can be subclassed and overridden for some specific integrations.
"""
return not is_sagemaker_mp_enabled()
@property
def _no_sync_in_gradient_accumulation(self):
"""
Whether or not to use no_sync for the gradients when doing gradient accumulation.
"""
return not (
self.deepspeed or is_sagemaker_dp_enabled() or is_sagemaker_mp_enabled() or is_torch_neuroncore_available()
)
@contextlib.contextmanager
def main_process_first(self, local=True, desc="work"):
"""
A context manager for torch distributed environment where on needs to do something on the main process, while
blocking replicas, and when it's finished releasing the replicas.
One such use is for `datasets`'s `map` feature which to be efficient should be run once on the main process,
which upon completion saves a cached version of results and which then automatically gets loaded by the
replicas.
Args:
local (`bool`, *optional*, defaults to `True`):
if `True` first means process of rank 0 of each node if `False` first means process of rank 0 of node
rank 0 In multi-node environment with a shared filesystem you most likely will want to use
`local=False` so that only the main process of the first node will do the processing. If however, the
filesystem is not shared, then the main process of each node will need to do the processing, which is
the default behavior.
desc (`str`, *optional*, defaults to `"work"`):
a work description to be used in debug logs
"""
if is_torch_available() and self.world_size > 1:
main_process_desc = "main local process" if local else "main process"
if self.distributed_state is not None:
is_main_process = (
self.distributed_state.is_local_main_process if local else self.distributed_state.is_main_process
)
elif is_sagemaker_mp_enabled():
is_main_process = smp.rank() == 0
try:
if not is_main_process:
# tell all replicas to wait
logger.debug(f"{self.process_index}: waiting for the {main_process_desc} to perform {desc}")
if is_torch_xla_available():
xm.rendezvous(desc)
else:
dist.barrier()
yield
finally:
if is_main_process:
# the wait is over
logger.debug(f"{self.process_index}: {main_process_desc} completed {desc}, releasing all replicas")
if is_torch_xla_available():
xm.rendezvous(desc)
else:
dist.barrier()
else:
yield
def get_warmup_steps(self, num_training_steps: int):
"""
Get number of steps used for a linear warmup.
"""
warmup_steps = (
self.warmup_steps if self.warmup_steps > 0 else math.ceil(num_training_steps * self.warmup_ratio)
)
return warmup_steps
def to_dict(self):
"""
Serializes this instance while replace `Enum` by their values (for JSON serialization support). It obfuscates
the token values by removing their value.
"""
# filter out fields that are defined as field(init=False)
d = {field.name: getattr(self, field.name) for field in fields(self) if field.init}
for k, v in d.items():
if isinstance(v, Enum):
d[k] = v.value
if isinstance(v, list) and len(v) > 0 and isinstance(v[0], Enum):
d[k] = [x.value for x in v]
if k.endswith("_token"):
d[k] = f"<{k.upper()}>"
# Handle the accelerator_config if passed
if is_accelerate_available() and isinstance(v, AcceleratorConfig):
d[k] = v.to_dict()
return d
def to_json_string(self):
"""
Serializes this instance to a JSON string.
"""
return json.dumps(self.to_dict(), indent=2)
def to_sanitized_dict(self) -> Dict[str, Any]:
"""
Sanitized serialization to use with TensorBoard’s hparams
"""
d = self.to_dict()
d = {**d, **{"train_batch_size": self.train_batch_size, "eval_batch_size": self.eval_batch_size}}
valid_types = [bool, int, float, str]
if is_torch_available():
valid_types.append(torch.Tensor)
return {k: v if type(v) in valid_types else str(v) for k, v in d.items()}
# The following methods are there to simplify the instantiation of `TrainingArguments`
def set_training(
self,
learning_rate: float = 5e-5,
batch_size: int = 8,
weight_decay: float = 0,
num_epochs: float = 3,
max_steps: int = -1,
gradient_accumulation_steps: int = 1,
seed: int = 42,
gradient_checkpointing: bool = False,
):
"""
A method that regroups all basic arguments linked to the training.
<Tip>
Calling this method will automatically set `self.do_train` to `True`.
</Tip>
Args:
learning_rate (`float`, *optional*, defaults to 5e-5):
The initial learning rate for the optimizer.
batch_size (`int` *optional*, defaults to 8):
The batch size per device (GPU/TPU core/CPU...) used for training.
weight_decay (`float`, *optional*, defaults to 0):
The weight decay to apply (if not zero) to all layers except all bias and LayerNorm weights in the
optimizer.
num_train_epochs(`float`, *optional*, defaults to 3.0):
Total number of training epochs to perform (if not an integer, will perform the decimal part percents
of the last epoch before stopping training).
max_steps (`int`, *optional*, defaults to -1):
If set to a positive number, the total number of training steps to perform. Overrides `num_train_epochs`.
For a finite dataset, training is reiterated through the dataset (if all data is exhausted) until
`max_steps` is reached.
gradient_accumulation_steps (`int`, *optional*, defaults to 1):
Number of updates steps to accumulate the gradients for, before performing a backward/update pass.
<Tip warning={true}>
When using gradient accumulation, one step is counted as one step with backward pass. Therefore,
logging, evaluation, save will be conducted every `gradient_accumulation_steps * xxx_step` training
examples.
</Tip>
seed (`int`, *optional*, defaults to 42):
Random seed that will be set at the beginning of training. To ensure reproducibility across runs, use
the [`~Trainer.model_init`] function to instantiate the model if it has some randomly initialized
parameters.
gradient_checkpointing (`bool`, *optional*, defaults to `False`):
If True, use gradient checkpointing to save memory at the expense of slower backward pass.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_training(learning_rate=1e-4, batch_size=32)
>>> args.learning_rate
1e-4
```
"""
self.do_train = True
self.learning_rate = learning_rate
self.per_device_train_batch_size = batch_size
self.weight_decay = weight_decay
self.num_train_epochs = num_epochs
self.max_steps = max_steps
self.gradient_accumulation_steps = gradient_accumulation_steps
self.seed = seed
self.gradient_checkpointing = gradient_checkpointing
return self
def set_evaluate(
self,
strategy: Union[str, IntervalStrategy] = "no",
steps: int = 500,
batch_size: int = 8,
accumulation_steps: Optional[int] = None,
delay: Optional[float] = None,
loss_only: bool = False,
jit_mode: bool = False,
):
"""
A method that regroups all arguments linked to evaluation.
Args:
strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"no"`):
The evaluation strategy to adopt during training. Possible values are:
- `"no"`: No evaluation is done during training.
- `"steps"`: Evaluation is done (and logged) every `steps`.
- `"epoch"`: Evaluation is done at the end of each epoch.
Setting a `strategy` different from `"no"` will set `self.do_eval` to `True`.
steps (`int`, *optional*, defaults to 500):
Number of update steps between two evaluations if `strategy="steps"`.
batch_size (`int` *optional*, defaults to 8):
The batch size per device (GPU/TPU core/CPU...) used for evaluation.
accumulation_steps (`int`, *optional*):
Number of predictions steps to accumulate the output tensors for, before moving the results to the CPU.
If left unset, the whole predictions are accumulated on GPU/TPU before being moved to the CPU (faster
but requires more memory).
delay (`float`, *optional*):
Number of epochs or steps to wait for before the first evaluation can be performed, depending on the
eval_strategy.
loss_only (`bool`, *optional*, defaults to `False`):
Ignores all outputs except the loss.
jit_mode (`bool`, *optional*):
Whether or not to use PyTorch jit trace for inference.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_evaluate(strategy="steps", steps=100)
>>> args.eval_steps
100
```
"""
self.eval_strategy = IntervalStrategy(strategy)
if self.eval_strategy == IntervalStrategy.STEPS and steps == 0:
raise ValueError("Setting `strategy` as 'steps' requires a positive value for `steps`.")
self.do_eval = self.eval_strategy != IntervalStrategy.NO
self.eval_steps = steps
self.per_device_eval_batch_size = batch_size
self.eval_accumulation_steps = accumulation_steps
self.eval_delay = delay
self.prediction_loss_only = loss_only
self.jit_mode_eval = jit_mode
return self
def set_testing(
self,
batch_size: int = 8,
loss_only: bool = False,
jit_mode: bool = False,
):
"""
A method that regroups all basic arguments linked to testing on a held-out dataset.
<Tip>
Calling this method will automatically set `self.do_predict` to `True`.
</Tip>
Args:
batch_size (`int` *optional*, defaults to 8):
The batch size per device (GPU/TPU core/CPU...) used for testing.
loss_only (`bool`, *optional*, defaults to `False`):
Ignores all outputs except the loss.
jit_mode (`bool`, *optional*):
Whether or not to use PyTorch jit trace for inference.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_testing(batch_size=32)
>>> args.per_device_eval_batch_size
32
```
"""
self.do_predict = True
self.per_device_eval_batch_size = batch_size
self.prediction_loss_only = loss_only
self.jit_mode_eval = jit_mode
return self
def set_save(
self,
strategy: Union[str, IntervalStrategy] = "steps",
steps: int = 500,
total_limit: Optional[int] = None,
on_each_node: bool = False,
):
"""
A method that regroups all arguments linked to checkpoint saving.
Args:
strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"steps"`):
The checkpoint save strategy to adopt during training. Possible values are:
- `"no"`: No save is done during training.
- `"epoch"`: Save is done at the end of each epoch.
- `"steps"`: Save is done every `save_steps`.
steps (`int`, *optional*, defaults to 500):
Number of updates steps before two checkpoint saves if `strategy="steps"`.
total_limit (`int`, *optional*):
If a value is passed, will limit the total amount of checkpoints. Deletes the older checkpoints in
`output_dir`.
on_each_node (`bool`, *optional*, defaults to `False`):
When doing multi-node distributed training, whether to save models and checkpoints on each node, or
only on the main one.
This should not be activated when the different nodes use the same storage as the files will be saved
with the same names for each node.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_save(strategy="steps", steps=100)
>>> args.save_steps
100
```
"""
self.save_strategy = IntervalStrategy(strategy)
if self.save_strategy == IntervalStrategy.STEPS and steps == 0:
raise ValueError("Setting `strategy` as 'steps' requires a positive value for `steps`.")
self.save_steps = steps
self.save_total_limit = total_limit
self.save_on_each_node = on_each_node
return self
def set_logging(
self,
strategy: Union[str, IntervalStrategy] = "steps",
steps: int = 500,
report_to: Union[str, List[str]] = "none",
level: str = "passive",
first_step: bool = False,
nan_inf_filter: bool = False,
on_each_node: bool = False,
replica_level: str = "passive",
):
"""
A method that regroups all arguments linked to logging.
Args:
strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"steps"`):
The logging strategy to adopt during training. Possible values are:
- `"no"`: No logging is done during training.
- `"epoch"`: Logging is done at the end of each epoch.
- `"steps"`: Logging is done every `logging_steps`.
steps (`int`, *optional*, defaults to 500):
Number of update steps between two logs if `strategy="steps"`.
level (`str`, *optional*, defaults to `"passive"`):
Logger log level to use on the main process. Possible choices are the log levels as strings: `"debug"`,
`"info"`, `"warning"`, `"error"` and `"critical"`, plus a `"passive"` level which doesn't set anything
and lets the application set the level.
report_to (`str` or `List[str]`, *optional*, defaults to `"all"`):
The list of integrations to report the results and logs to. Supported platforms are `"azure_ml"`,
`"clearml"`, `"codecarbon"`, `"comet_ml"`, `"dagshub"`, `"dvclive"`, `"flyte"`, `"mlflow"`,
`"neptune"`, `"tensorboard"`, and `"wandb"`. Use `"all"` to report to all integrations installed,
`"none"` for no integrations.
first_step (`bool`, *optional*, defaults to `False`):
Whether to log and evaluate the first `global_step` or not.
nan_inf_filter (`bool`, *optional*, defaults to `True`):
Whether to filter `nan` and `inf` losses for logging. If set to `True` the loss of every step that is
`nan` or `inf` is filtered and the average loss of the current logging window is taken instead.
<Tip>
`nan_inf_filter` only influences the logging of loss values, it does not change the behavior the
gradient is computed or applied to the model.
</Tip>
on_each_node (`bool`, *optional*, defaults to `True`):
In multinode distributed training, whether to log using `log_level` once per node, or only on the main
node.
replica_level (`str`, *optional*, defaults to `"passive"`):
Logger log level to use on replicas. Same choices as `log_level`
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_logging(strategy="steps", steps=100)
>>> args.logging_steps
100
```
"""
self.logging_strategy = IntervalStrategy(strategy)
if self.logging_strategy == IntervalStrategy.STEPS and steps == 0:
raise ValueError("Setting `strategy` as 'steps' requires a positive value for `steps`.")
self.logging_steps = steps
self.report_to = report_to
self.log_level = level
self.logging_first_step = first_step
self.logging_nan_inf_filter = nan_inf_filter
self.log_on_each_node = on_each_node
self.log_level_replica = replica_level
return self
def set_push_to_hub(
self,
model_id: str,
strategy: Union[str, HubStrategy] = "every_save",
token: Optional[str] = None,
private_repo: bool = False,
always_push: bool = False,
):
"""
A method that regroups all arguments linked to synchronizing checkpoints with the Hub.
<Tip>
Calling this method will set `self.push_to_hub` to `True`, which means the `output_dir` will begin a git
directory synced with the repo (determined by `model_id`) and the content will be pushed each time a save is
triggered (depending on`self.save_strategy`). Calling [`~Trainer.save_model`] will also trigger a push.
</Tip>
Args:
model_id (`str`):
The name of the repository to keep in sync with the local *output_dir*. It can be a simple model ID in
which case the model will be pushed in your namespace. Otherwise it should be the whole repository
name, for instance `"user_name/model"`, which allows you to push to an organization you are a member of
with `"organization_name/model"`.
strategy (`str` or [`~trainer_utils.HubStrategy`], *optional*, defaults to `"every_save"`):
Defines the scope of what is pushed to the Hub and when. Possible values are:
- `"end"`: push the model, its configuration, the tokenizer (if passed along to the [`Trainer`]) and a
draft of a model card when the [`~Trainer.save_model`] method is called.
- `"every_save"`: push the model, its configuration, the tokenizer (if passed along to the [`Trainer`])
and
a draft of a model card each time there is a model save. The pushes are asynchronous to not block
training, and in case the save are very frequent, a new push is only attempted if the previous one is
finished. A last push is made with the final model at the end of training.
- `"checkpoint"`: like `"every_save"` but the latest checkpoint is also pushed in a subfolder named
last-checkpoint, allowing you to resume training easily with
`trainer.train(resume_from_checkpoint="last-checkpoint")`.
- `"all_checkpoints"`: like `"checkpoint"` but all checkpoints are pushed like they appear in the
output
folder (so you will get one checkpoint folder per folder in your final repository)
token (`str`, *optional*):
The token to use to push the model to the Hub. Will default to the token in the cache folder obtained
with `huggingface-cli login`.
private_repo (`bool`, *optional*, defaults to `False`):
If True, the Hub repo will be set to private.
always_push (`bool`, *optional*, defaults to `False`):
Unless this is `True`, the `Trainer` will skip pushing a checkpoint when the previous push is not
finished.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_push_to_hub("me/awesome-model")
>>> args.hub_model_id
'me/awesome-model'
```
"""
self.push_to_hub = True
self.hub_model_id = model_id
self.hub_strategy = HubStrategy(strategy)
self.hub_token = token
self.hub_private_repo = private_repo
self.hub_always_push = always_push
return self
def set_optimizer(
self,
name: Union[str, OptimizerNames] = "adamw_torch",
learning_rate: float = 5e-5,
weight_decay: float = 0,
beta1: float = 0.9,
beta2: float = 0.999,
epsilon: float = 1e-8,
args: Optional[str] = None,
):
"""
A method that regroups all arguments linked to the optimizer and its hyperparameters.
Args:
name (`str` or [`training_args.OptimizerNames`], *optional*, defaults to `"adamw_torch"`):
The optimizer to use: `"adamw_hf"`, `"adamw_torch"`, `"adamw_torch_fused"`, `"adamw_apex_fused"`,
`"adamw_anyprecision"` or `"adafactor"`.
learning_rate (`float`, *optional*, defaults to 5e-5):
The initial learning rate.
weight_decay (`float`, *optional*, defaults to 0):
The weight decay to apply (if not zero) to all layers except all bias and LayerNorm weights.
beta1 (`float`, *optional*, defaults to 0.9):
The beta1 hyperparameter for the adam optimizer or its variants.
beta2 (`float`, *optional*, defaults to 0.999):
The beta2 hyperparameter for the adam optimizer or its variants.
epsilon (`float`, *optional*, defaults to 1e-8):
The epsilon hyperparameter for the adam optimizer or its variants.
args (`str`, *optional*):
Optional arguments that are supplied to AnyPrecisionAdamW (only useful when
`optim="adamw_anyprecision"`).
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_optimizer(name="adamw_torch", beta1=0.8)
>>> args.optim
'adamw_torch'
```
"""
self.optim = OptimizerNames(name)
self.learning_rate = learning_rate
self.weight_decay = weight_decay
self.adam_beta1 = beta1
self.adam_beta2 = beta2
self.adam_epsilon = epsilon
self.optim_args = args
return self
def set_lr_scheduler(
self,
name: Union[str, SchedulerType] = "linear",
num_epochs: float = 3.0,
max_steps: int = -1,
warmup_ratio: float = 0,
warmup_steps: int = 0,
):
"""
A method that regroups all arguments linked to the learning rate scheduler and its hyperparameters.
Args:
name (`str` or [`SchedulerType`], *optional*, defaults to `"linear"`):
The scheduler type to use. See the documentation of [`SchedulerType`] for all possible values.
num_epochs(`float`, *optional*, defaults to 3.0):
Total number of training epochs to perform (if not an integer, will perform the decimal part percents
of the last epoch before stopping training).
max_steps (`int`, *optional*, defaults to -1):
If set to a positive number, the total number of training steps to perform. Overrides `num_train_epochs`.
For a finite dataset, training is reiterated through the dataset (if all data is exhausted) until
`max_steps` is reached.
warmup_ratio (`float`, *optional*, defaults to 0.0):
Ratio of total training steps used for a linear warmup from 0 to `learning_rate`.
warmup_steps (`int`, *optional*, defaults to 0):
Number of steps used for a linear warmup from 0 to `learning_rate`. Overrides any effect of
`warmup_ratio`.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_lr_scheduler(name="cosine", warmup_ratio=0.05)
>>> args.warmup_ratio
0.05
```
"""
self.lr_scheduler_type = SchedulerType(name)
self.num_train_epochs = num_epochs
self.max_steps = max_steps
self.warmup_ratio = warmup_ratio
self.warmup_steps = warmup_steps
return self
def set_dataloader(
self,
train_batch_size: int = 8,
eval_batch_size: int = 8,
drop_last: bool = False,
num_workers: int = 0,
pin_memory: bool = True,
persistent_workers: bool = False,
prefetch_factor: Optional[int] = None,
auto_find_batch_size: bool = False,
ignore_data_skip: bool = False,
sampler_seed: Optional[int] = None,
):
"""
A method that regroups all arguments linked to the dataloaders creation.
Args:
drop_last (`bool`, *optional*, defaults to `False`):
Whether to drop the last incomplete batch (if the length of the dataset is not divisible by the batch
size) or not.
num_workers (`int`, *optional*, defaults to 0):
Number of subprocesses to use for data loading (PyTorch only). 0 means that the data will be loaded in
the main process.
pin_memory (`bool`, *optional*, defaults to `True`):
Whether you want to pin memory in data loaders or not. Will default to `True`.
persistent_workers (`bool`, *optional*, defaults to `False`):
If True, the data loader will not shut down the worker processes after a dataset has been consumed
once. This allows to maintain the workers Dataset instances alive. Can potentially speed up training,
but will increase RAM usage. Will default to `False`.
prefetch_factor (`int`, *optional*):
Number of batches loaded in advance by each worker.
2 means there will be a total of 2 * num_workers batches prefetched across all workers.
auto_find_batch_size (`bool`, *optional*, defaults to `False`)
Whether to find a batch size that will fit into memory automatically through exponential decay,
avoiding CUDA Out-of-Memory errors. Requires accelerate to be installed (`pip install accelerate`)
ignore_data_skip (`bool`, *optional*, defaults to `False`):
When resuming training, whether or not to skip the epochs and batches to get the data loading at the
same stage as in the previous training. If set to `True`, the training will begin faster (as that
skipping step can take a long time) but will not yield the same results as the interrupted training
would have.
sampler_seed (`int`, *optional*):
Random seed to be used with data samplers. If not set, random generators for data sampling will use the
same seed as `self.seed`. This can be used to ensure reproducibility of data sampling, independent of
the model seed.
Example:
```py
>>> from transformers import TrainingArguments
>>> args = TrainingArguments("working_dir")
>>> args = args.set_dataloader(train_batch_size=16, eval_batch_size=64)
>>> args.per_device_train_batch_size
16
```
"""
self.per_device_train_batch_size = train_batch_size
self.per_device_eval_batch_size = eval_batch_size
self.dataloader_drop_last = drop_last
self.dataloader_num_workers = num_workers
self.dataloader_pin_memory = pin_memory
self.dataloader_persistent_workers = persistent_workers
self.dataloader_prefetch_factor = prefetch_factor
self.auto_find_batch_size = auto_find_batch_size
self.ignore_data_skip = ignore_data_skip
self.data_seed = sampler_seed
return self
class ParallelMode(Enum):
NOT_PARALLEL = "not_parallel"
NOT_DISTRIBUTED = "not_distributed"
DISTRIBUTED = "distributed"
SAGEMAKER_MODEL_PARALLEL = "sagemaker_model_parallel"
SAGEMAKER_DATA_PARALLEL = "sagemaker_data_parallel"
TPU = "tpu"
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/configuration_utils.py | # coding=utf-8
# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Configuration base class and utilities."""
import copy
import json
import os
import re
import warnings
from typing import Any, Dict, List, Optional, Tuple, Union
from packaging import version
from . import __version__
from .dynamic_module_utils import custom_object_save
from .utils import (
CONFIG_NAME,
PushToHubMixin,
add_model_info_to_auto_map,
cached_file,
copy_func,
download_url,
extract_commit_hash,
is_remote_url,
is_torch_available,
logging,
)
logger = logging.get_logger(__name__)
_re_configuration_file = re.compile(r"config\.(.*)\.json")
class PretrainedConfig(PushToHubMixin):
# no-format
r"""
Base class for all configuration classes. Handles a few parameters common to all models' configurations as well as
methods for loading/downloading/saving configurations.
<Tip>
A configuration file can be loaded and saved to disk. Loading the configuration file and using this file to
initialize a model does **not** load the model weights. It only affects the model's configuration.
</Tip>
Class attributes (overridden by derived classes):
- **model_type** (`str`) -- An identifier for the model type, serialized into the JSON file, and used to recreate
the correct object in [`~transformers.AutoConfig`].
- **is_composition** (`bool`) -- Whether the config class is composed of multiple sub-configs. In this case the
config has to be initialized from two or more configs of type [`~transformers.PretrainedConfig`] like:
[`~transformers.EncoderDecoderConfig`] or [`~RagConfig`].
- **keys_to_ignore_at_inference** (`List[str]`) -- A list of keys to ignore by default when looking at dictionary
outputs of the model during inference.
- **attribute_map** (`Dict[str, str]`) -- A dict that maps model specific attribute names to the standardized
naming of attributes.
Common attributes (present in all subclasses):
- **vocab_size** (`int`) -- The number of tokens in the vocabulary, which is also the first dimension of the
embeddings matrix (this attribute may be missing for models that don't have a text modality like ViT).
- **hidden_size** (`int`) -- The hidden size of the model.
- **num_attention_heads** (`int`) -- The number of attention heads used in the multi-head attention layers of the
model.
- **num_hidden_layers** (`int`) -- The number of blocks in the model.
Arg:
name_or_path (`str`, *optional*, defaults to `""`):
Store the string that was passed to [`PreTrainedModel.from_pretrained`] or
[`TFPreTrainedModel.from_pretrained`] as `pretrained_model_name_or_path` if the configuration was created
with such a method.
output_hidden_states (`bool`, *optional*, defaults to `False`):
Whether or not the model should return all hidden-states.
output_attentions (`bool`, *optional*, defaults to `False`):
Whether or not the model should returns all attentions.
return_dict (`bool`, *optional*, defaults to `True`):
Whether or not the model should return a [`~transformers.utils.ModelOutput`] instead of a plain tuple.
is_encoder_decoder (`bool`, *optional*, defaults to `False`):
Whether the model is used as an encoder/decoder or not.
is_decoder (`bool`, *optional*, defaults to `False`):
Whether the model is used as decoder or not (in which case it's used as an encoder).
cross_attention_hidden_size** (`bool`, *optional*):
The hidden size of the cross-attention layer in case the model is used as a decoder in an encoder-decoder
setting and the cross-attention hidden dimension differs from `self.config.hidden_size`.
add_cross_attention (`bool`, *optional*, defaults to `False`):
Whether cross-attention layers should be added to the model. Note, this option is only relevant for models
that can be used as decoder models within the [`EncoderDecoderModel`] class, which consists of all models
in `AUTO_MODELS_FOR_CAUSAL_LM`.
tie_encoder_decoder (`bool`, *optional*, defaults to `False`):
Whether all encoder weights should be tied to their equivalent decoder weights. This requires the encoder
and decoder model to have the exact same parameter names.
prune_heads (`Dict[int, List[int]]`, *optional*, defaults to `{}`):
Pruned heads of the model. The keys are the selected layer indices and the associated values, the list of
heads to prune in said layer.
For instance `{1: [0, 2], 2: [2, 3]}` will prune heads 0 and 2 on layer 1 and heads 2 and 3 on layer 2.
chunk_size_feed_forward (`int`, *optional*, defaults to `0`):
The chunk size of all feed forward layers in the residual attention blocks. A chunk size of `0` means that
the feed forward layer is not chunked. A chunk size of n means that the feed forward layer processes `n` <
sequence_length embeddings at a time. For more information on feed forward chunking, see [How does Feed
Forward Chunking work?](../glossary.html#feed-forward-chunking).
> Parameters for sequence generation
max_length (`int`, *optional*, defaults to 20):
Maximum length that will be used by default in the `generate` method of the model.
min_length (`int`, *optional*, defaults to 0):
Minimum length that will be used by default in the `generate` method of the model.
do_sample (`bool`, *optional*, defaults to `False`):
Flag that will be used by default in the `generate` method of the model. Whether or not to use sampling ;
use greedy decoding otherwise.
early_stopping (`bool`, *optional*, defaults to `False`):
Flag that will be used by default in the `generate` method of the model. Whether to stop the beam search
when at least `num_beams` sentences are finished per batch or not.
num_beams (`int`, *optional*, defaults to 1):
Number of beams for beam search that will be used by default in the `generate` method of the model. 1 means
no beam search.
num_beam_groups (`int`, *optional*, defaults to 1):
Number of groups to divide `num_beams` into in order to ensure diversity among different groups of beams
that will be used by default in the `generate` method of the model. 1 means no group beam search.
diversity_penalty (`float`, *optional*, defaults to 0.0):
Value to control diversity for group beam search. that will be used by default in the `generate` method of
the model. 0 means no diversity penalty. The higher the penalty, the more diverse are the outputs.
temperature (`float`, *optional*, defaults to 1.0):
The value used to module the next token probabilities that will be used by default in the `generate` method
of the model. Must be strictly positive.
top_k (`int`, *optional*, defaults to 50):
Number of highest probability vocabulary tokens to keep for top-k-filtering that will be used by default in
the `generate` method of the model.
top_p (`float`, *optional*, defaults to 1):
Value that will be used by default in the `generate` method of the model for `top_p`. If set to float < 1,
only the most probable tokens with probabilities that add up to `top_p` or higher are kept for generation.
typical_p (`float`, *optional*, defaults to 1):
Local typicality measures how similar the conditional probability of predicting a target token next is to
the expected conditional probability of predicting a random token next, given the partial text already
generated. If set to float < 1, the smallest set of the most locally typical tokens with probabilities that
add up to `typical_p` or higher are kept for generation. See [this
paper](https://arxiv.org/pdf/2202.00666.pdf) for more details.
repetition_penalty (`float`, *optional*, defaults to 1):
Parameter for repetition penalty that will be used by default in the `generate` method of the model. 1.0
means no penalty.
length_penalty (`float`, *optional*, defaults to 1):
Exponential penalty to the length that is used with beam-based generation. It is applied as an exponent to
the sequence length, which in turn is used to divide the score of the sequence. Since the score is the log
likelihood of the sequence (i.e. negative), `length_penalty` > 0.0 promotes longer sequences, while
`length_penalty` < 0.0 encourages shorter sequences.
no_repeat_ngram_size (`int`, *optional*, defaults to 0) -- Value that will be used by default in the
`generate` method of the model for `no_repeat_ngram_size`. If set to int > 0, all ngrams of that size can
only occur once.
encoder_no_repeat_ngram_size (`int`, *optional*, defaults to 0) -- Value that will be used by
default in the `generate` method of the model for `encoder_no_repeat_ngram_size`. If set to int > 0, all
ngrams of that size that occur in the `encoder_input_ids` cannot occur in the `decoder_input_ids`.
bad_words_ids (`List[int]`, *optional*):
List of token ids that are not allowed to be generated that will be used by default in the `generate`
method of the model. In order to get the tokens of the words that should not appear in the generated text,
use `tokenizer.encode(bad_word, add_prefix_space=True)`.
num_return_sequences (`int`, *optional*, defaults to 1):
Number of independently computed returned sequences for each element in the batch that will be used by
default in the `generate` method of the model.
output_scores (`bool`, *optional*, defaults to `False`):
Whether the model should return the logits when used for generation.
return_dict_in_generate (`bool`, *optional*, defaults to `False`):
Whether the model should return a [`~transformers.utils.ModelOutput`] instead of a `torch.LongTensor`.
forced_bos_token_id (`int`, *optional*):
The id of the token to force as the first generated token after the `decoder_start_token_id`. Useful for
multilingual models like [mBART](../model_doc/mbart) where the first generated token needs to be the target
language token.
forced_eos_token_id (`int`, *optional*):
The id of the token to force as the last generated token when `max_length` is reached.
remove_invalid_values (`bool`, *optional*):
Whether to remove possible _nan_ and _inf_ outputs of the model to prevent the generation method to crash.
Note that using `remove_invalid_values` can slow down generation.
> Parameters for fine-tuning tasks
architectures (`List[str]`, *optional*):
Model architectures that can be used with the model pretrained weights.
finetuning_task (`str`, *optional*):
Name of the task used to fine-tune the model. This can be used when converting from an original (TensorFlow
or PyTorch) checkpoint.
id2label (`Dict[int, str]`, *optional*):
A map from index (for instance prediction index, or target index) to label.
label2id (`Dict[str, int]`, *optional*): A map from label to index for the model.
num_labels (`int`, *optional*):
Number of labels to use in the last layer added to the model, typically for a classification task.
task_specific_params (`Dict[str, Any]`, *optional*):
Additional keyword arguments to store for the current task.
problem_type (`str`, *optional*):
Problem type for `XxxForSequenceClassification` models. Can be one of `"regression"`,
`"single_label_classification"` or `"multi_label_classification"`.
> Parameters linked to the tokenizer
tokenizer_class (`str`, *optional*):
The name of the associated tokenizer class to use (if none is set, will use the tokenizer associated to the
model by default).
prefix (`str`, *optional*):
A specific prompt that should be added at the beginning of each text before calling the model.
bos_token_id (`int`, *optional*): The id of the _beginning-of-stream_ token.
pad_token_id (`int`, *optional*): The id of the _padding_ token.
eos_token_id (`int`, *optional*): The id of the _end-of-stream_ token.
decoder_start_token_id (`int`, *optional*):
If an encoder-decoder model starts decoding with a different token than _bos_, the id of that token.
sep_token_id (`int`, *optional*): The id of the _separation_ token.
> PyTorch specific parameters
torchscript (`bool`, *optional*, defaults to `False`):
Whether or not the model should be used with Torchscript.
tie_word_embeddings (`bool`, *optional*, defaults to `True`):
Whether the model's input and output word embeddings should be tied. Note that this is only relevant if the
model has a output word embedding layer.
torch_dtype (`str`, *optional*):
The `dtype` of the weights. This attribute can be used to initialize the model to a non-default `dtype`
(which is normally `float32`) and thus allow for optimal storage allocation. For example, if the saved
model is `float16`, ideally we want to load it back using the minimal amount of memory needed to load
`float16` weights. Since the config object is stored in plain text, this attribute contains just the
floating type string without the `torch.` prefix. For example, for `torch.float16` ``torch_dtype` is the
`"float16"` string.
This attribute is currently not being used during model loading time, but this may change in the future
versions. But we can already start preparing for the future by saving the dtype with save_pretrained.
> TensorFlow specific parameters
use_bfloat16 (`bool`, *optional*, defaults to `False`):
Whether or not the model should use BFloat16 scalars (only used by some TensorFlow models).
tf_legacy_loss (`bool`, *optional*, defaults to `False`):
Whether the model should use legacy TensorFlow losses. Legacy losses have variable output shapes and may
not be XLA-compatible. This option is here for backward compatibility and will be removed in Transformers
v5.
"""
model_type: str = ""
is_composition: bool = False
attribute_map: Dict[str, str] = {}
_auto_class: Optional[str] = None
def __setattr__(self, key, value):
if key in super().__getattribute__("attribute_map"):
key = super().__getattribute__("attribute_map")[key]
super().__setattr__(key, value)
def __getattribute__(self, key):
if key != "attribute_map" and key in super().__getattribute__("attribute_map"):
key = super().__getattribute__("attribute_map")[key]
return super().__getattribute__(key)
def __init__(self, **kwargs):
# Attributes with defaults
self.return_dict = kwargs.pop("return_dict", True)
self.output_hidden_states = kwargs.pop("output_hidden_states", False)
self.output_attentions = kwargs.pop("output_attentions", False)
self.torchscript = kwargs.pop("torchscript", False) # Only used by PyTorch models
self.torch_dtype = kwargs.pop("torch_dtype", None) # Only used by PyTorch models
self.use_bfloat16 = kwargs.pop("use_bfloat16", False)
self.tf_legacy_loss = kwargs.pop("tf_legacy_loss", False) # Only used by TensorFlow models
self.pruned_heads = kwargs.pop("pruned_heads", {})
self.tie_word_embeddings = kwargs.pop(
"tie_word_embeddings", True
) # Whether input and output word embeddings should be tied for all MLM, LM and Seq2Seq models.
self.chunk_size_feed_forward = kwargs.pop("chunk_size_feed_forward", 0)
# Is decoder is used in encoder-decoder models to differentiate encoder from decoder
self.is_encoder_decoder = kwargs.pop("is_encoder_decoder", False)
self.is_decoder = kwargs.pop("is_decoder", False)
self.cross_attention_hidden_size = kwargs.pop("cross_attention_hidden_size", None)
self.add_cross_attention = kwargs.pop("add_cross_attention", False)
self.tie_encoder_decoder = kwargs.pop("tie_encoder_decoder", False)
# Retrocompatibility: Parameters for sequence generation. While we will keep the ability to load these
# parameters, saving them will be deprecated. In a distant future, we won't need to load them.
for parameter_name, default_value in self._get_generation_defaults().items():
setattr(self, parameter_name, kwargs.pop(parameter_name, default_value))
# Fine-tuning task arguments
self.architectures = kwargs.pop("architectures", None)
self.finetuning_task = kwargs.pop("finetuning_task", None)
self.id2label = kwargs.pop("id2label", None)
self.label2id = kwargs.pop("label2id", None)
if self.label2id is not None and not isinstance(self.label2id, dict):
raise ValueError("Argument label2id should be a dictionary.")
if self.id2label is not None:
if not isinstance(self.id2label, dict):
raise ValueError("Argument id2label should be a dictionary.")
num_labels = kwargs.pop("num_labels", None)
if num_labels is not None and len(self.id2label) != num_labels:
logger.warning(
f"You passed along `num_labels={num_labels}` with an incompatible id to label map: "
f"{self.id2label}. The number of labels wil be overwritten to {self.num_labels}."
)
self.id2label = {int(key): value for key, value in self.id2label.items()}
# Keys are always strings in JSON so convert ids to int here.
else:
self.num_labels = kwargs.pop("num_labels", 2)
if self.torch_dtype is not None and isinstance(self.torch_dtype, str):
# we will start using self.torch_dtype in v5, but to be consistent with
# from_pretrained's torch_dtype arg convert it to an actual torch.dtype object
if is_torch_available():
import torch
self.torch_dtype = getattr(torch, self.torch_dtype)
# Tokenizer arguments TODO: eventually tokenizer and models should share the same config
self.tokenizer_class = kwargs.pop("tokenizer_class", None)
self.prefix = kwargs.pop("prefix", None)
self.bos_token_id = kwargs.pop("bos_token_id", None)
self.pad_token_id = kwargs.pop("pad_token_id", None)
self.eos_token_id = kwargs.pop("eos_token_id", None)
self.sep_token_id = kwargs.pop("sep_token_id", None)
self.decoder_start_token_id = kwargs.pop("decoder_start_token_id", None)
# task specific arguments
self.task_specific_params = kwargs.pop("task_specific_params", None)
# regression / multi-label classification
self.problem_type = kwargs.pop("problem_type", None)
allowed_problem_types = ("regression", "single_label_classification", "multi_label_classification")
if self.problem_type is not None and self.problem_type not in allowed_problem_types:
raise ValueError(
f"The config parameter `problem_type` was not understood: received {self.problem_type} "
"but only 'regression', 'single_label_classification' and 'multi_label_classification' are valid."
)
# TPU arguments
if kwargs.pop("xla_device", None) is not None:
logger.warning(
"The `xla_device` argument has been deprecated in v4.4.0 of Transformers. It is ignored and you can "
"safely remove it from your `config.json` file."
)
# Name or path to the pretrained checkpoint
self._name_or_path = str(kwargs.pop("name_or_path", ""))
# Config hash
self._commit_hash = kwargs.pop("_commit_hash", None)
# Attention implementation to use, if relevant.
self._attn_implementation_internal = kwargs.pop("attn_implementation", None)
# Drop the transformers version info
self.transformers_version = kwargs.pop("transformers_version", None)
# Deal with gradient checkpointing
if kwargs.get("gradient_checkpointing", False):
warnings.warn(
"Passing `gradient_checkpointing` to a config initialization is deprecated and will be removed in v5 "
"Transformers. Using `model.gradient_checkpointing_enable()` instead, or if you are using the "
"`Trainer` API, pass `gradient_checkpointing=True` in your `TrainingArguments`."
)
# Additional attributes without default values
for key, value in kwargs.items():
try:
setattr(self, key, value)
except AttributeError as err:
logger.error(f"Can't set {key} with value {value} for {self}")
raise err
@property
def name_or_path(self) -> str:
return getattr(self, "_name_or_path", None)
@name_or_path.setter
def name_or_path(self, value):
self._name_or_path = str(value) # Make sure that name_or_path is a string (for JSON encoding)
@property
def use_return_dict(self) -> bool:
"""
`bool`: Whether or not return [`~utils.ModelOutput`] instead of tuples.
"""
# If torchscript is set, force `return_dict=False` to avoid jit errors
return self.return_dict and not self.torchscript
@property
def num_labels(self) -> int:
"""
`int`: The number of labels for classification models.
"""
return len(self.id2label)
@num_labels.setter
def num_labels(self, num_labels: int):
if not hasattr(self, "id2label") or self.id2label is None or len(self.id2label) != num_labels:
self.id2label = {i: f"LABEL_{i}" for i in range(num_labels)}
self.label2id = dict(zip(self.id2label.values(), self.id2label.keys()))
@property
def _attn_implementation(self):
# This property is made private for now (as it cannot be changed and a PreTrainedModel.use_attn_implementation method needs to be implemented.)
if hasattr(self, "_attn_implementation_internal"):
if self._attn_implementation_internal is None:
# `config.attn_implementation` should never be None, for backward compatibility.
return "eager"
else:
return self._attn_implementation_internal
else:
return "eager"
@_attn_implementation.setter
def _attn_implementation(self, value):
self._attn_implementation_internal = value
def save_pretrained(self, save_directory: Union[str, os.PathLike], push_to_hub: bool = False, **kwargs):
"""
Save a configuration object to the directory `save_directory`, so that it can be re-loaded using the
[`~PretrainedConfig.from_pretrained`] class method.
Args:
save_directory (`str` or `os.PathLike`):
Directory where the configuration JSON file will be saved (will be created if it does not exist).
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
self._set_token_in_kwargs(kwargs)
if os.path.isfile(save_directory):
raise AssertionError(f"Provided path ({save_directory}) should be a directory, not a file")
non_default_generation_parameters = {}
for parameter_name, default_value in self._get_generation_defaults().items():
if hasattr(self, parameter_name) and getattr(self, parameter_name) != default_value:
non_default_generation_parameters[parameter_name] = getattr(self, parameter_name)
if len(non_default_generation_parameters) > 0:
logger.warning(
"Some non-default generation parameters are set in the model config. These should go into a "
"GenerationConfig file (https://huggingface.co/docs/transformers/generation_strategies#save-a-custom-decoding-strategy-with-your-model) "
"instead. This warning will be raised to an exception in v4.41.\n"
f"Non-default generation parameters: {str(non_default_generation_parameters)}"
)
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
# If we have a custom config, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=self)
# If we save using the predefined names, we can load using `from_pretrained`
output_config_file = os.path.join(save_directory, CONFIG_NAME)
self.to_json_file(output_config_file, use_diff=True)
logger.info(f"Configuration saved in {output_config_file}")
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=kwargs.get("token"),
)
@staticmethod
def _set_token_in_kwargs(kwargs, token=None):
"""Temporary method to deal with `token` and `use_auth_token`.
This method is to avoid apply the same changes in all model config classes that overwrite `from_pretrained`.
Need to clean up `use_auth_token` in a follow PR.
"""
# Some model config classes like CLIP define their own `from_pretrained` without the new argument `token` yet.
if token is None:
token = kwargs.pop("token", None)
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
**kwargs,
) -> "PretrainedConfig":
r"""
Instantiate a [`PretrainedConfig`] (or a derived class) from a pretrained model configuration.
Args:
pretrained_model_name_or_path (`str` or `os.PathLike`):
This can be either:
- a string, the *model id* of a pretrained model configuration hosted inside a model repo on
huggingface.co.
- a path to a *directory* containing a configuration file saved using the
[`~PretrainedConfig.save_pretrained`] method, e.g., `./my_model_directory/`.
- a path or url to a saved configuration JSON *file*, e.g., `./my_model_directory/configuration.json`.
cache_dir (`str` or `os.PathLike`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the
standard cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force to (re-)download the configuration files and override the cached versions if
they exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received file. Attempts to resume the download if such a file
exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request.
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
<Tip>
To test a pull request you made on the Hub, you can pass `revision="refs/pr/<pr_number>".
</Tip>
return_unused_kwargs (`bool`, *optional*, defaults to `False`):
If `False`, then this function returns just the final configuration object.
If `True`, then this functions returns a `Tuple(config, unused_kwargs)` where *unused_kwargs* is a
dictionary consisting of the key/value pairs whose keys are not configuration attributes: i.e., the
part of `kwargs` which has not been used to update `config` and is otherwise ignored.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
kwargs (`Dict[str, Any]`, *optional*):
The values in kwargs of any keys which are configuration attributes will be used to override the loaded
values. Behavior concerning key/value pairs whose keys are *not* configuration attributes is controlled
by the `return_unused_kwargs` keyword parameter.
Returns:
[`PretrainedConfig`]: The configuration object instantiated from this pretrained model.
Examples:
```python
# We can't instantiate directly the base class *PretrainedConfig* so let's show the examples on a
# derived class: BertConfig
config = BertConfig.from_pretrained(
"google-bert/bert-base-uncased"
) # Download configuration from huggingface.co and cache.
config = BertConfig.from_pretrained(
"./test/saved_model/"
) # E.g. config (or model) was saved using *save_pretrained('./test/saved_model/')*
config = BertConfig.from_pretrained("./test/saved_model/my_configuration.json")
config = BertConfig.from_pretrained("google-bert/bert-base-uncased", output_attentions=True, foo=False)
assert config.output_attentions == True
config, unused_kwargs = BertConfig.from_pretrained(
"google-bert/bert-base-uncased", output_attentions=True, foo=False, return_unused_kwargs=True
)
assert config.output_attentions == True
assert unused_kwargs == {"foo": False}
```"""
kwargs["cache_dir"] = cache_dir
kwargs["force_download"] = force_download
kwargs["local_files_only"] = local_files_only
kwargs["revision"] = revision
cls._set_token_in_kwargs(kwargs, token)
config_dict, kwargs = cls.get_config_dict(pretrained_model_name_or_path, **kwargs)
if "model_type" in config_dict and hasattr(cls, "model_type") and config_dict["model_type"] != cls.model_type:
logger.warning(
f"You are using a model of type {config_dict['model_type']} to instantiate a model of type "
f"{cls.model_type}. This is not supported for all configurations of models and can yield errors."
)
return cls.from_dict(config_dict, **kwargs)
@classmethod
def get_config_dict(
cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
"""
From a `pretrained_model_name_or_path`, resolve to a dictionary of parameters, to be used for instantiating a
[`PretrainedConfig`] using `from_dict`.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`):
The identifier of the pre-trained checkpoint from which we want the dictionary of parameters.
Returns:
`Tuple[Dict, Dict]`: The dictionary(ies) that will be used to instantiate the configuration object.
"""
cls._set_token_in_kwargs(kwargs)
original_kwargs = copy.deepcopy(kwargs)
# Get config dict associated with the base config file
config_dict, kwargs = cls._get_config_dict(pretrained_model_name_or_path, **kwargs)
if "_commit_hash" in config_dict:
original_kwargs["_commit_hash"] = config_dict["_commit_hash"]
# That config file may point us toward another config file to use.
if "configuration_files" in config_dict:
configuration_file = get_configuration_file(config_dict["configuration_files"])
config_dict, kwargs = cls._get_config_dict(
pretrained_model_name_or_path, _configuration_file=configuration_file, **original_kwargs
)
return config_dict, kwargs
@classmethod
def _get_config_dict(
cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
cache_dir = kwargs.pop("cache_dir", None)
force_download = kwargs.pop("force_download", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
token = kwargs.pop("token", None)
local_files_only = kwargs.pop("local_files_only", False)
revision = kwargs.pop("revision", None)
trust_remote_code = kwargs.pop("trust_remote_code", None)
subfolder = kwargs.pop("subfolder", "")
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
commit_hash = kwargs.pop("_commit_hash", None)
if trust_remote_code is True:
logger.warning(
"The argument `trust_remote_code` is to be used with Auto classes. It has no effect here and is"
" ignored."
)
user_agent = {"file_type": "config", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if os.path.isfile(os.path.join(subfolder, pretrained_model_name_or_path)):
# Special case when pretrained_model_name_or_path is a local file
resolved_config_file = pretrained_model_name_or_path
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
configuration_file = pretrained_model_name_or_path
resolved_config_file = download_url(pretrained_model_name_or_path)
else:
configuration_file = kwargs.pop("_configuration_file", CONFIG_NAME)
try:
# Load from local folder or from cache or download from model Hub and cache
resolved_config_file = cached_file(
pretrained_model_name_or_path,
configuration_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
_commit_hash=commit_hash,
)
commit_hash = extract_commit_hash(resolved_config_file, commit_hash)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted to
# the original exception.
raise
except Exception:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load the configuration of '{pretrained_model_name_or_path}'. If you were trying to load it"
" from 'https://huggingface.co/models', make sure you don't have a local directory with the same"
f" name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a directory"
f" containing a {configuration_file} file"
)
try:
# Load config dict
config_dict = cls._dict_from_json_file(resolved_config_file)
config_dict["_commit_hash"] = commit_hash
except (json.JSONDecodeError, UnicodeDecodeError):
raise EnvironmentError(
f"It looks like the config file at '{resolved_config_file}' is not a valid JSON file."
)
if is_local:
logger.info(f"loading configuration file {resolved_config_file}")
else:
logger.info(f"loading configuration file {configuration_file} from cache at {resolved_config_file}")
if "auto_map" in config_dict and not is_local:
config_dict["auto_map"] = add_model_info_to_auto_map(
config_dict["auto_map"], pretrained_model_name_or_path
)
return config_dict, kwargs
@classmethod
def from_dict(cls, config_dict: Dict[str, Any], **kwargs) -> "PretrainedConfig":
"""
Instantiates a [`PretrainedConfig`] from a Python dictionary of parameters.
Args:
config_dict (`Dict[str, Any]`):
Dictionary that will be used to instantiate the configuration object. Such a dictionary can be
retrieved from a pretrained checkpoint by leveraging the [`~PretrainedConfig.get_config_dict`] method.
kwargs (`Dict[str, Any]`):
Additional parameters from which to initialize the configuration object.
Returns:
[`PretrainedConfig`]: The configuration object instantiated from those parameters.
"""
return_unused_kwargs = kwargs.pop("return_unused_kwargs", False)
# Those arguments may be passed along for our internal telemetry.
# We remove them so they don't appear in `return_unused_kwargs`.
kwargs.pop("_from_auto", None)
kwargs.pop("_from_pipeline", None)
# The commit hash might have been updated in the `config_dict`, we don't want the kwargs to erase that update.
if "_commit_hash" in kwargs and "_commit_hash" in config_dict:
kwargs["_commit_hash"] = config_dict["_commit_hash"]
# We remove it from kwargs so that it does not appear in `return_unused_kwargs`.
config_dict["attn_implementation"] = kwargs.pop("attn_implementation", None)
config = cls(**config_dict)
if hasattr(config, "pruned_heads"):
config.pruned_heads = {int(key): value for key, value in config.pruned_heads.items()}
# Update config with kwargs if needed
if "num_labels" in kwargs and "id2label" in kwargs:
num_labels = kwargs["num_labels"]
id2label = kwargs["id2label"] if kwargs["id2label"] is not None else []
if len(id2label) != num_labels:
raise ValueError(
f"You passed along `num_labels={num_labels }` with an incompatible id to label map: "
f"{kwargs['id2label']}. Since those arguments are inconsistent with each other, you should remove "
"one of them."
)
to_remove = []
for key, value in kwargs.items():
if hasattr(config, key):
current_attr = getattr(config, key)
# To authorize passing a custom subconfig as kwarg in models that have nested configs.
if isinstance(current_attr, PretrainedConfig) and isinstance(value, dict):
value = current_attr.__class__(**value)
setattr(config, key, value)
if key != "torch_dtype":
to_remove.append(key)
for key in to_remove:
kwargs.pop(key, None)
logger.info(f"Model config {config}")
if return_unused_kwargs:
return config, kwargs
else:
return config
@classmethod
def from_json_file(cls, json_file: Union[str, os.PathLike]) -> "PretrainedConfig":
"""
Instantiates a [`PretrainedConfig`] from the path to a JSON file of parameters.
Args:
json_file (`str` or `os.PathLike`):
Path to the JSON file containing the parameters.
Returns:
[`PretrainedConfig`]: The configuration object instantiated from that JSON file.
"""
config_dict = cls._dict_from_json_file(json_file)
return cls(**config_dict)
@classmethod
def _dict_from_json_file(cls, json_file: Union[str, os.PathLike]):
with open(json_file, "r", encoding="utf-8") as reader:
text = reader.read()
return json.loads(text)
def __eq__(self, other):
return isinstance(other, PretrainedConfig) and (self.__dict__ == other.__dict__)
def __repr__(self):
return f"{self.__class__.__name__} {self.to_json_string()}"
def to_diff_dict(self) -> Dict[str, Any]:
"""
Removes all attributes from config which correspond to the default config attributes for better readability and
serializes to a Python dictionary.
Returns:
`Dict[str, Any]`: Dictionary of all the attributes that make up this configuration instance,
"""
config_dict = self.to_dict()
# get the default config dict
default_config_dict = PretrainedConfig().to_dict()
# get class specific config dict
class_config_dict = self.__class__().to_dict() if not self.is_composition else {}
serializable_config_dict = {}
# only serialize values that differ from the default config
for key, value in config_dict.items():
if (
isinstance(getattr(self, key, None), PretrainedConfig)
and key in class_config_dict
and isinstance(class_config_dict[key], dict)
):
# For nested configs we need to clean the diff recursively
diff = recursive_diff_dict(value, class_config_dict[key], config_obj=getattr(self, key, None))
if "model_type" in value:
# Needs to be set even if it's not in the diff
diff["model_type"] = value["model_type"]
if len(diff) > 0:
serializable_config_dict[key] = diff
elif (
key not in default_config_dict
or key == "transformers_version"
or value != default_config_dict[key]
or (key in class_config_dict and value != class_config_dict[key])
):
serializable_config_dict[key] = value
if hasattr(self, "quantization_config"):
serializable_config_dict["quantization_config"] = (
self.quantization_config.to_dict()
if not isinstance(self.quantization_config, dict)
else self.quantization_config
)
# pop the `_pre_quantization_dtype` as torch.dtypes are not serializable.
_ = serializable_config_dict.pop("_pre_quantization_dtype", None)
self.dict_torch_dtype_to_str(serializable_config_dict)
if "_attn_implementation_internal" in serializable_config_dict:
del serializable_config_dict["_attn_implementation_internal"]
return serializable_config_dict
def to_dict(self) -> Dict[str, Any]:
"""
Serializes this instance to a Python dictionary.
Returns:
`Dict[str, Any]`: Dictionary of all the attributes that make up this configuration instance.
"""
output = copy.deepcopy(self.__dict__)
if hasattr(self.__class__, "model_type"):
output["model_type"] = self.__class__.model_type
if "_auto_class" in output:
del output["_auto_class"]
if "_commit_hash" in output:
del output["_commit_hash"]
if "_attn_implementation_internal" in output:
del output["_attn_implementation_internal"]
# Transformers version when serializing the model
output["transformers_version"] = __version__
for key, value in output.items():
# Deal with nested configs like CLIP
if isinstance(value, PretrainedConfig):
value = value.to_dict()
del value["transformers_version"]
output[key] = value
if hasattr(self, "quantization_config"):
output["quantization_config"] = (
self.quantization_config.to_dict()
if not isinstance(self.quantization_config, dict)
else self.quantization_config
)
# pop the `_pre_quantization_dtype` as torch.dtypes are not serializable.
_ = output.pop("_pre_quantization_dtype", None)
self.dict_torch_dtype_to_str(output)
return output
def to_json_string(self, use_diff: bool = True) -> str:
"""
Serializes this instance to a JSON string.
Args:
use_diff (`bool`, *optional*, defaults to `True`):
If set to `True`, only the difference between the config instance and the default `PretrainedConfig()`
is serialized to JSON string.
Returns:
`str`: String containing all the attributes that make up this configuration instance in JSON format.
"""
if use_diff is True:
config_dict = self.to_diff_dict()
else:
config_dict = self.to_dict()
return json.dumps(config_dict, indent=2, sort_keys=True) + "\n"
def to_json_file(self, json_file_path: Union[str, os.PathLike], use_diff: bool = True):
"""
Save this instance to a JSON file.
Args:
json_file_path (`str` or `os.PathLike`):
Path to the JSON file in which this configuration instance's parameters will be saved.
use_diff (`bool`, *optional*, defaults to `True`):
If set to `True`, only the difference between the config instance and the default `PretrainedConfig()`
is serialized to JSON file.
"""
with open(json_file_path, "w", encoding="utf-8") as writer:
writer.write(self.to_json_string(use_diff=use_diff))
def update(self, config_dict: Dict[str, Any]):
"""
Updates attributes of this class with attributes from `config_dict`.
Args:
config_dict (`Dict[str, Any]`): Dictionary of attributes that should be updated for this class.
"""
for key, value in config_dict.items():
setattr(self, key, value)
def update_from_string(self, update_str: str):
"""
Updates attributes of this class with attributes from `update_str`.
The expected format is ints, floats and strings as is, and for booleans use `true` or `false`. For example:
"n_embd=10,resid_pdrop=0.2,scale_attn_weights=false,summary_type=cls_index"
The keys to change have to already exist in the config object.
Args:
update_str (`str`): String with attributes that should be updated for this class.
"""
d = dict(x.split("=") for x in update_str.split(","))
for k, v in d.items():
if not hasattr(self, k):
raise ValueError(f"key {k} isn't in the original config dict")
old_v = getattr(self, k)
if isinstance(old_v, bool):
if v.lower() in ["true", "1", "y", "yes"]:
v = True
elif v.lower() in ["false", "0", "n", "no"]:
v = False
else:
raise ValueError(f"can't derive true or false from {v} (key {k})")
elif isinstance(old_v, int):
v = int(v)
elif isinstance(old_v, float):
v = float(v)
elif not isinstance(old_v, str):
raise ValueError(
f"You can only update int, float, bool or string values in the config, got {v} for key {k}"
)
setattr(self, k, v)
def dict_torch_dtype_to_str(self, d: Dict[str, Any]) -> None:
"""
Checks whether the passed dictionary and its nested dicts have a *torch_dtype* key and if it's not None,
converts torch.dtype to a string of just the type. For example, `torch.float32` get converted into *"float32"*
string, which can then be stored in the json format.
"""
if d.get("torch_dtype", None) is not None and not isinstance(d["torch_dtype"], str):
d["torch_dtype"] = str(d["torch_dtype"]).split(".")[1]
for value in d.values():
if isinstance(value, dict):
self.dict_torch_dtype_to_str(value)
@classmethod
def register_for_auto_class(cls, auto_class="AutoConfig"):
"""
Register this class with a given auto class. This should only be used for custom configurations as the ones in
the library are already mapped with `AutoConfig`.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"AutoConfig"`):
The auto class to register this new configuration with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
@staticmethod
def _get_generation_defaults() -> Dict[str, Any]:
return {
"max_length": 20,
"min_length": 0,
"do_sample": False,
"early_stopping": False,
"num_beams": 1,
"num_beam_groups": 1,
"diversity_penalty": 0.0,
"temperature": 1.0,
"top_k": 50,
"top_p": 1.0,
"typical_p": 1.0,
"repetition_penalty": 1.0,
"length_penalty": 1.0,
"no_repeat_ngram_size": 0,
"encoder_no_repeat_ngram_size": 0,
"bad_words_ids": None,
"num_return_sequences": 1,
"output_scores": False,
"return_dict_in_generate": False,
"forced_bos_token_id": None,
"forced_eos_token_id": None,
"remove_invalid_values": False,
"exponential_decay_length_penalty": None,
"suppress_tokens": None,
"begin_suppress_tokens": None,
}
def _has_non_default_generation_parameters(self) -> bool:
"""
Whether or not this instance holds non-default generation parameters.
"""
for parameter_name, default_value in self._get_generation_defaults().items():
if hasattr(self, parameter_name) and getattr(self, parameter_name) != default_value:
return True
return False
def get_configuration_file(configuration_files: List[str]) -> str:
"""
Get the configuration file to use for this version of transformers.
Args:
configuration_files (`List[str]`): The list of available configuration files.
Returns:
`str`: The configuration file to use.
"""
configuration_files_map = {}
for file_name in configuration_files:
search = _re_configuration_file.search(file_name)
if search is not None:
v = search.groups()[0]
configuration_files_map[v] = file_name
available_versions = sorted(configuration_files_map.keys())
# Defaults to FULL_CONFIGURATION_FILE and then try to look at some newer versions.
configuration_file = CONFIG_NAME
transformers_version = version.parse(__version__)
for v in available_versions:
if version.parse(v) <= transformers_version:
configuration_file = configuration_files_map[v]
else:
# No point going further since the versions are sorted.
break
return configuration_file
def recursive_diff_dict(dict_a, dict_b, config_obj=None):
"""
Helper function to recursively take the diff between two nested dictionaries. The resulting diff only contains the
values from `dict_a` that are different from values in `dict_b`.
"""
diff = {}
default = config_obj.__class__().to_dict() if config_obj is not None else {}
for key, value in dict_a.items():
obj_value = getattr(config_obj, str(key), None)
if isinstance(obj_value, PretrainedConfig) and key in dict_b and isinstance(dict_b[key], dict):
diff_value = recursive_diff_dict(value, dict_b[key], config_obj=obj_value)
if len(diff_value) > 0:
diff[key] = diff_value
elif key not in dict_b or value != dict_b[key] or key not in default or value != default[key]:
diff[key] = value
return diff
PretrainedConfig.push_to_hub = copy_func(PretrainedConfig.push_to_hub)
if PretrainedConfig.push_to_hub.__doc__ is not None:
PretrainedConfig.push_to_hub.__doc__ = PretrainedConfig.push_to_hub.__doc__.format(
object="config", object_class="AutoConfig", object_files="configuration file"
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/convert_slow_tokenizers_checkpoints_to_fast.py | # coding=utf-8
# Copyright 2018 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Convert slow tokenizers checkpoints in fast (serialization format of the `tokenizers` library)"""
import argparse
import os
import transformers
from .convert_slow_tokenizer import SLOW_TO_FAST_CONVERTERS
from .utils import logging
logging.set_verbosity_info()
logger = logging.get_logger(__name__)
TOKENIZER_CLASSES = {name: getattr(transformers, name + "Fast") for name in SLOW_TO_FAST_CONVERTERS}
def convert_slow_checkpoint_to_fast(tokenizer_name, checkpoint_name, dump_path, force_download):
if tokenizer_name is not None and tokenizer_name not in TOKENIZER_CLASSES:
raise ValueError(f"Unrecognized tokenizer name, should be one of {list(TOKENIZER_CLASSES.keys())}.")
if tokenizer_name is None:
tokenizer_names = TOKENIZER_CLASSES
else:
tokenizer_names = {tokenizer_name: getattr(transformers, tokenizer_name + "Fast")}
logger.info(f"Loading tokenizer classes: {tokenizer_names}")
for tokenizer_name in tokenizer_names:
tokenizer_class = TOKENIZER_CLASSES[tokenizer_name]
add_prefix = True
if checkpoint_name is None:
checkpoint_names = list(tokenizer_class.max_model_input_sizes.keys())
else:
checkpoint_names = [checkpoint_name]
logger.info(f"For tokenizer {tokenizer_class.__class__.__name__} loading checkpoints: {checkpoint_names}")
for checkpoint in checkpoint_names:
logger.info(f"Loading {tokenizer_class.__class__.__name__} {checkpoint}")
# Load tokenizer
tokenizer = tokenizer_class.from_pretrained(checkpoint, force_download=force_download)
# Save fast tokenizer
logger.info(f"Save fast tokenizer to {dump_path} with prefix {checkpoint} add_prefix {add_prefix}")
# For organization names we create sub-directories
if "/" in checkpoint:
checkpoint_directory, checkpoint_prefix_name = checkpoint.split("/")
dump_path_full = os.path.join(dump_path, checkpoint_directory)
elif add_prefix:
checkpoint_prefix_name = checkpoint
dump_path_full = dump_path
else:
checkpoint_prefix_name = None
dump_path_full = dump_path
logger.info(f"=> {dump_path_full} with prefix {checkpoint_prefix_name}, add_prefix {add_prefix}")
if checkpoint in list(tokenizer.pretrained_vocab_files_map.values())[0]:
file_path = list(tokenizer.pretrained_vocab_files_map.values())[0][checkpoint]
next_char = file_path.split(checkpoint)[-1][0]
if next_char == "/":
dump_path_full = os.path.join(dump_path_full, checkpoint_prefix_name)
checkpoint_prefix_name = None
logger.info(f"=> {dump_path_full} with prefix {checkpoint_prefix_name}, add_prefix {add_prefix}")
file_names = tokenizer.save_pretrained(
dump_path_full, legacy_format=False, filename_prefix=checkpoint_prefix_name
)
logger.info(f"=> File names {file_names}")
for file_name in file_names:
if not file_name.endswith("tokenizer.json"):
os.remove(file_name)
logger.info(f"=> removing {file_name}")
if __name__ == "__main__":
parser = argparse.ArgumentParser()
# Required parameters
parser.add_argument(
"--dump_path", default=None, type=str, required=True, help="Path to output generated fast tokenizer files."
)
parser.add_argument(
"--tokenizer_name",
default=None,
type=str,
help=(
f"Optional tokenizer type selected in the list of {list(TOKENIZER_CLASSES.keys())}. If not given, will "
"download and convert all the checkpoints from AWS."
),
)
parser.add_argument(
"--checkpoint_name",
default=None,
type=str,
help="Optional checkpoint name. If not given, will download and convert the canonical checkpoints from AWS.",
)
parser.add_argument(
"--force_download",
action="store_true",
help="Re-download checkpoints.",
)
args = parser.parse_args()
convert_slow_checkpoint_to_fast(args.tokenizer_name, args.checkpoint_name, args.dump_path, args.force_download)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/safetensors_conversion.py | import json
import uuid
from typing import Optional
import requests
from huggingface_hub import Discussion, HfApi, get_repo_discussions
from .utils import cached_file, http_user_agent, logging
logger = logging.get_logger(__name__)
def previous_pr(api: HfApi, model_id: str, pr_title: str, token: str) -> Optional["Discussion"]:
main_commit = api.list_repo_commits(model_id, token=token)[0].commit_id
for discussion in get_repo_discussions(repo_id=model_id, token=token):
if discussion.title == pr_title and discussion.status == "open" and discussion.is_pull_request:
commits = api.list_repo_commits(model_id, revision=discussion.git_reference, token=token)
if main_commit == commits[1].commit_id:
return discussion
return None
def spawn_conversion(token: str, private: bool, model_id: str):
logger.info("Attempting to convert .bin model on the fly to safetensors.")
safetensors_convert_space_url = "https://safetensors-convert.hf.space"
sse_url = f"{safetensors_convert_space_url}/queue/join"
sse_data_url = f"{safetensors_convert_space_url}/queue/data"
# The `fn_index` is necessary to indicate to gradio that we will use the `run` method of the Space.
hash_data = {"fn_index": 1, "session_hash": str(uuid.uuid4())}
def start(_sse_connection, payload):
for line in _sse_connection.iter_lines():
line = line.decode()
if line.startswith("data:"):
resp = json.loads(line[5:])
logger.debug(f"Safetensors conversion status: {resp['msg']}")
if resp["msg"] == "queue_full":
raise ValueError("Queue is full! Please try again.")
elif resp["msg"] == "send_data":
event_id = resp["event_id"]
response = requests.post(
sse_data_url,
stream=True,
params=hash_data,
json={"event_id": event_id, **payload, **hash_data},
)
response.raise_for_status()
elif resp["msg"] == "process_completed":
return
with requests.get(sse_url, stream=True, params=hash_data) as sse_connection:
data = {"data": [model_id, private, token]}
try:
logger.debug("Spawning safetensors automatic conversion.")
start(sse_connection, data)
except Exception as e:
logger.warning(f"Error during conversion: {repr(e)}")
def get_conversion_pr_reference(api: HfApi, model_id: str, **kwargs):
private = api.model_info(model_id).private
logger.info("Attempting to create safetensors variant")
pr_title = "Adding `safetensors` variant of this model"
token = kwargs.get("token")
# This looks into the current repo's open PRs to see if a PR for safetensors was already open. If so, it
# returns it. It checks that the PR was opened by the bot and not by another user so as to prevent
# security breaches.
pr = previous_pr(api, model_id, pr_title, token=token)
if pr is None or (not private and pr.author != "SFConvertBot"):
spawn_conversion(token, private, model_id)
pr = previous_pr(api, model_id, pr_title, token=token)
else:
logger.info("Safetensors PR exists")
sha = f"refs/pr/{pr.num}"
return sha
def auto_conversion(pretrained_model_name_or_path: str, ignore_errors_during_conversion=False, **cached_file_kwargs):
try:
api = HfApi(token=cached_file_kwargs.get("token"), headers=http_user_agent())
sha = get_conversion_pr_reference(api, pretrained_model_name_or_path, **cached_file_kwargs)
if sha is None:
return None, None
cached_file_kwargs["revision"] = sha
del cached_file_kwargs["_commit_hash"]
# This is an additional HEAD call that could be removed if we could infer sharded/non-sharded from the PR
# description.
sharded = api.file_exists(
pretrained_model_name_or_path,
"model.safetensors.index.json",
revision=sha,
token=cached_file_kwargs.get("token"),
)
filename = "model.safetensors.index.json" if sharded else "model.safetensors"
resolved_archive_file = cached_file(pretrained_model_name_or_path, filename, **cached_file_kwargs)
return resolved_archive_file, sha, sharded
except Exception as e:
if not ignore_errors_during_conversion:
raise e
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/trainer.py | # coding=utf-8
# Copyright 2020-present the HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
The Trainer class, to easily train a 🤗 Transformers from scratch or finetune it on a new task.
"""
import contextlib
import copy
import functools
import glob
import importlib.metadata
import inspect
import math
import os
import random
import re
import shutil
import sys
import tempfile
import time
import warnings
from collections.abc import Mapping
from pathlib import Path
from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Tuple, Union
# Integrations must be imported before ML frameworks:
# isort: off
from .integrations import (
get_reporting_integration_callbacks,
hp_params,
)
# isort: on
import huggingface_hub.utils as hf_hub_utils
import numpy as np
import torch
import torch.distributed as dist
from huggingface_hub import ModelCard, create_repo, upload_folder
from packaging import version
from torch import nn
from torch.utils.data import DataLoader, Dataset, IterableDataset, RandomSampler, SequentialSampler
from . import __version__
from .configuration_utils import PretrainedConfig
from .data.data_collator import DataCollator, DataCollatorWithPadding, default_data_collator
from .debug_utils import DebugOption, DebugUnderflowOverflow
from .feature_extraction_sequence_utils import SequenceFeatureExtractor
from .hyperparameter_search import ALL_HYPERPARAMETER_SEARCH_BACKENDS, default_hp_search_backend
from .integrations.deepspeed import deepspeed_init, deepspeed_load_checkpoint, is_deepspeed_available
from .integrations.tpu import tpu_spmd_dataloader
from .modelcard import TrainingSummary
from .modeling_utils import PreTrainedModel, load_sharded_checkpoint
from .models.auto.modeling_auto import (
MODEL_FOR_CAUSAL_LM_MAPPING_NAMES,
MODEL_MAPPING_NAMES,
)
from .optimization import Adafactor, get_scheduler
from .pytorch_utils import (
ALL_LAYERNORM_LAYERS,
is_torch_greater_or_equal_than_1_13,
is_torch_greater_or_equal_than_2_3,
)
from .tokenization_utils_base import PreTrainedTokenizerBase
from .trainer_callback import (
CallbackHandler,
DefaultFlowCallback,
ExportableState,
PrinterCallback,
ProgressCallback,
TrainerCallback,
TrainerControl,
TrainerState,
)
from .trainer_pt_utils import (
DistributedTensorGatherer,
EvalLoopContainer,
IterableDatasetShard,
LabelSmoother,
LayerWiseDummyOptimizer,
LengthGroupedSampler,
SequentialDistributedSampler,
distributed_broadcast_scalars,
distributed_concat,
find_batch_size,
get_model_param_count,
get_module_class_from_name,
get_parameter_names,
nested_concat,
nested_detach,
nested_numpify,
nested_xla_mesh_reduce,
reissue_pt_warnings,
remove_dummy_checkpoint,
)
from .trainer_utils import (
PREFIX_CHECKPOINT_DIR,
BestRun,
EvalLoopOutput,
EvalPrediction,
HPSearchBackend,
HubStrategy,
IntervalStrategy,
PredictionOutput,
RemoveColumnsCollator,
TrainerMemoryTracker,
TrainOutput,
check_target_module_exists,
default_compute_objective,
denumpify_detensorize,
enable_full_determinism,
find_executable_batch_size,
get_last_checkpoint,
has_length,
neftune_post_forward_hook,
number_of_arguments,
seed_worker,
set_seed,
speed_metrics,
)
from .training_args import OptimizerNames, ParallelMode, TrainingArguments
from .utils import (
ADAPTER_CONFIG_NAME,
ADAPTER_SAFE_WEIGHTS_NAME,
ADAPTER_WEIGHTS_NAME,
CONFIG_NAME,
SAFE_WEIGHTS_INDEX_NAME,
SAFE_WEIGHTS_NAME,
WEIGHTS_INDEX_NAME,
WEIGHTS_NAME,
XLA_FSDPV2_MIN_VERSION,
PushInProgress,
PushToHubMixin,
can_return_loss,
find_labels,
is_accelerate_available,
is_apex_available,
is_bitsandbytes_available,
is_datasets_available,
is_galore_torch_available,
is_in_notebook,
is_ipex_available,
is_peft_available,
is_safetensors_available,
is_sagemaker_dp_enabled,
is_sagemaker_mp_enabled,
is_torch_compile_available,
is_torch_mlu_available,
is_torch_neuroncore_available,
is_torch_npu_available,
is_torch_xla_available,
logging,
strtobool,
)
from .utils.quantization_config import QuantizationMethod
DEFAULT_CALLBACKS = [DefaultFlowCallback]
DEFAULT_PROGRESS_CALLBACK = ProgressCallback
if is_in_notebook():
from .utils.notebook import NotebookProgressCallback
DEFAULT_PROGRESS_CALLBACK = NotebookProgressCallback
if is_apex_available():
from apex import amp
if is_datasets_available():
import datasets
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
import torch_xla.debug.metrics as met
from torch_xla import __version__ as XLA_VERSION
IS_XLA_FSDPV2_POST_2_2 = version.parse(XLA_VERSION) >= version.parse(XLA_FSDPV2_MIN_VERSION)
if IS_XLA_FSDPV2_POST_2_2:
import torch_xla.distributed.spmd as xs
import torch_xla.runtime as xr
else:
IS_XLA_FSDPV2_POST_2_2 = False
if is_sagemaker_mp_enabled():
import smdistributed.modelparallel.torch as smp
from smdistributed.modelparallel import __version__ as SMP_VERSION
IS_SAGEMAKER_MP_POST_1_10 = version.parse(SMP_VERSION) >= version.parse("1.10")
from .trainer_pt_utils import smp_forward_backward, smp_forward_only, smp_gather, smp_nested_concat
else:
IS_SAGEMAKER_MP_POST_1_10 = False
if is_safetensors_available():
import safetensors.torch
if is_peft_available():
from peft import PeftModel
if is_accelerate_available():
from accelerate import Accelerator, skip_first_batches
from accelerate import __version__ as accelerate_version
from accelerate.utils import (
DistributedDataParallelKwargs,
DistributedType,
GradientAccumulationPlugin,
load_fsdp_model,
load_fsdp_optimizer,
save_fsdp_model,
save_fsdp_optimizer,
)
DATA_SAMPLERS = [RandomSampler]
if version.parse(accelerate_version) > version.parse("0.23.0"):
from accelerate.data_loader import SeedableRandomSampler
DATA_SAMPLERS += [SeedableRandomSampler]
if is_deepspeed_available():
from accelerate.utils import DeepSpeedSchedulerWrapper
if is_accelerate_available("0.28.0"):
from accelerate.utils import DataLoaderConfiguration
def _is_peft_model(model):
if is_peft_available():
classes_to_check = (PeftModel,) if is_peft_available() else ()
# Here we also check if the model is an instance of `PeftMixedModel` introduced in peft>=0.7.0: https://github.com/huggingface/transformers/pull/28321
if version.parse(importlib.metadata.version("peft")) >= version.parse("0.7.0"):
from peft import PeftMixedModel
classes_to_check = (*classes_to_check, PeftMixedModel)
return isinstance(model, classes_to_check)
return False
def _get_fsdp_ckpt_kwargs():
# TODO: @AjayP13, @younesbelkada replace this check with version check at the next `accelerate` release
if is_accelerate_available() and "adapter_only" in list(inspect.signature(save_fsdp_model).parameters):
return {"adapter_only": True}
else:
return {}
if TYPE_CHECKING:
import optuna
if is_datasets_available():
import datasets
logger = logging.get_logger(__name__)
# Name of the files used for checkpointing
TRAINING_ARGS_NAME = "training_args.bin"
TRAINER_STATE_NAME = "trainer_state.json"
OPTIMIZER_NAME = "optimizer.pt"
OPTIMIZER_NAME_BIN = "optimizer.bin"
SCHEDULER_NAME = "scheduler.pt"
SCALER_NAME = "scaler.pt"
FSDP_MODEL_NAME = "pytorch_model_fsdp"
class Trainer:
"""
Trainer is a simple but feature-complete training and eval loop for PyTorch, optimized for 🤗 Transformers.
Args:
model ([`PreTrainedModel`] or `torch.nn.Module`, *optional*):
The model to train, evaluate or use for predictions. If not provided, a `model_init` must be passed.
<Tip>
[`Trainer`] is optimized to work with the [`PreTrainedModel`] provided by the library. You can still use
your own models defined as `torch.nn.Module` as long as they work the same way as the 🤗 Transformers
models.
</Tip>
args ([`TrainingArguments`], *optional*):
The arguments to tweak for training. Will default to a basic instance of [`TrainingArguments`] with the
`output_dir` set to a directory named *tmp_trainer* in the current directory if not provided.
data_collator (`DataCollator`, *optional*):
The function to use to form a batch from a list of elements of `train_dataset` or `eval_dataset`. Will
default to [`default_data_collator`] if no `tokenizer` is provided, an instance of
[`DataCollatorWithPadding`] otherwise.
train_dataset (Union[`torch.utils.data.Dataset`, `torch.utils.data.IterableDataset`, `datasets.Dataset`], *optional*):
The dataset to use for training. If it is a [`~datasets.Dataset`], columns not accepted by the
`model.forward()` method are automatically removed.
Note that if it's a `torch.utils.data.IterableDataset` with some randomization and you are training in a
distributed fashion, your iterable dataset should either use a internal attribute `generator` that is a
`torch.Generator` for the randomization that must be identical on all processes (and the Trainer will
manually set the seed of this `generator` at each epoch) or have a `set_epoch()` method that internally
sets the seed of the RNGs used.
eval_dataset (Union[`torch.utils.data.Dataset`, Dict[str, `torch.utils.data.Dataset`, `datasets.Dataset`]), *optional*):
The dataset to use for evaluation. If it is a [`~datasets.Dataset`], columns not accepted by the
`model.forward()` method are automatically removed. If it is a dictionary, it will evaluate on each
dataset prepending the dictionary key to the metric name.
tokenizer ([`PreTrainedTokenizerBase`], *optional*):
The tokenizer used to preprocess the data. If provided, will be used to automatically pad the inputs to the
maximum length when batching inputs, and it will be saved along the model to make it easier to rerun an
interrupted training or reuse the fine-tuned model.
model_init (`Callable[[], PreTrainedModel]`, *optional*):
A function that instantiates the model to be used. If provided, each call to [`~Trainer.train`] will start
from a new instance of the model as given by this function.
The function may have zero argument, or a single one containing the optuna/Ray Tune/SigOpt trial object, to
be able to choose different architectures according to hyper parameters (such as layer count, sizes of
inner layers, dropout probabilities etc).
compute_metrics (`Callable[[EvalPrediction], Dict]`, *optional*):
The function that will be used to compute metrics at evaluation. Must take a [`EvalPrediction`] and return
a dictionary string to metric values.
callbacks (List of [`TrainerCallback`], *optional*):
A list of callbacks to customize the training loop. Will add those to the list of default callbacks
detailed in [here](callback).
If you want to remove one of the default callbacks used, use the [`Trainer.remove_callback`] method.
optimizers (`Tuple[torch.optim.Optimizer, torch.optim.lr_scheduler.LambdaLR]`, *optional*, defaults to `(None, None)`):
A tuple containing the optimizer and the scheduler to use. Will default to an instance of [`AdamW`] on your
model and a scheduler given by [`get_linear_schedule_with_warmup`] controlled by `args`.
preprocess_logits_for_metrics (`Callable[[torch.Tensor, torch.Tensor], torch.Tensor]`, *optional*):
A function that preprocess the logits right before caching them at each evaluation step. Must take two
tensors, the logits and the labels, and return the logits once processed as desired. The modifications made
by this function will be reflected in the predictions received by `compute_metrics`.
Note that the labels (second parameter) will be `None` if the dataset does not have them.
Important attributes:
- **model** -- Always points to the core model. If using a transformers model, it will be a [`PreTrainedModel`]
subclass.
- **model_wrapped** -- Always points to the most external model in case one or more other modules wrap the
original model. This is the model that should be used for the forward pass. For example, under `DeepSpeed`,
the inner model is wrapped in `DeepSpeed` and then again in `torch.nn.DistributedDataParallel`. If the inner
model hasn't been wrapped, then `self.model_wrapped` is the same as `self.model`.
- **is_model_parallel** -- Whether or not a model has been switched to a model parallel mode (different from
data parallelism, this means some of the model layers are split on different GPUs).
- **place_model_on_device** -- Whether or not to automatically place the model on the device - it will be set
to `False` if model parallel or deepspeed is used, or if the default
`TrainingArguments.place_model_on_device` is overridden to return `False` .
- **is_in_train** -- Whether or not a model is currently running `train` (e.g. when `evaluate` is called while
in `train`)
"""
# Those are used as methods of the Trainer in examples.
from .trainer_pt_utils import _get_learning_rate, log_metrics, metrics_format, save_metrics, save_state
def __init__(
self,
model: Union[PreTrainedModel, nn.Module] = None,
args: TrainingArguments = None,
data_collator: Optional[DataCollator] = None,
train_dataset: Optional[Union[Dataset, IterableDataset, "datasets.Dataset"]] = None,
eval_dataset: Optional[Union[Dataset, Dict[str, Dataset], "datasets.Dataset"]] = None,
tokenizer: Optional[PreTrainedTokenizerBase] = None,
model_init: Optional[Callable[[], PreTrainedModel]] = None,
compute_metrics: Optional[Callable[[EvalPrediction], Dict]] = None,
callbacks: Optional[List[TrainerCallback]] = None,
optimizers: Tuple[torch.optim.Optimizer, torch.optim.lr_scheduler.LambdaLR] = (None, None),
preprocess_logits_for_metrics: Optional[Callable[[torch.Tensor, torch.Tensor], torch.Tensor]] = None,
):
if args is None:
output_dir = "tmp_trainer"
logger.info(f"No `TrainingArguments` passed, using `output_dir={output_dir}`.")
args = TrainingArguments(output_dir=output_dir)
self.args = args
# Seed must be set before instantiating the model when using model
enable_full_determinism(self.args.seed) if self.args.full_determinism else set_seed(self.args.seed)
self.hp_name = None
self.deepspeed = None
self.is_in_train = False
self.create_accelerator_and_postprocess()
# memory metrics - must set up as early as possible
self._memory_tracker = TrainerMemoryTracker(self.args.skip_memory_metrics)
self._memory_tracker.start()
# set the correct log level depending on the node
log_level = args.get_process_log_level()
logging.set_verbosity(log_level)
# force device and distributed setup init explicitly
args._setup_devices
if model is None:
if model_init is not None:
self.model_init = model_init
model = self.call_model_init()
else:
raise RuntimeError("`Trainer` requires either a `model` or `model_init` argument")
else:
if model_init is not None:
warnings.warn(
"`Trainer` requires either a `model` or `model_init` argument, but not both. `model_init` will"
" overwrite your model when calling the `train` method. This will become a fatal error in the next"
" release.",
FutureWarning,
)
self.model_init = model_init
if model.__class__.__name__ in MODEL_MAPPING_NAMES:
raise ValueError(
f"The model you have picked ({model.__class__.__name__}) cannot be used as is for training: it only "
"computes hidden states and does not accept any labels. You should choose a model with a head "
"suitable for your task like any of the `AutoModelForXxx` listed at "
"https://huggingface.co/docs/transformers/model_doc/auto"
)
if hasattr(model, "is_parallelizable") and model.is_parallelizable and model.model_parallel:
self.is_model_parallel = True
else:
self.is_model_parallel = False
if getattr(model, "hf_device_map", None) is not None:
devices = [device for device in set(model.hf_device_map.values()) if device not in ["cpu", "disk"]]
if len(devices) > 1:
self.is_model_parallel = True
elif len(devices) == 1:
self.is_model_parallel = self.args.device != torch.device(devices[0])
else:
self.is_model_parallel = False
# warn users
if self.is_model_parallel:
logger.info(
"You have loaded a model on multiple GPUs. `is_model_parallel` attribute will be force-set"
" to `True` to avoid any unexpected behavior such as device placement mismatching."
)
_is_quantized_and_base_model = getattr(model, "is_quantized", False) and not getattr(
model, "_hf_peft_config_loaded", False
)
_quantization_method_supports_training = (
getattr(model, "hf_quantizer", None) is not None and model.hf_quantizer.is_trainable
)
# Filter out quantized + compiled models
if _is_quantized_and_base_model and hasattr(model, "_orig_mod"):
raise ValueError(
"You cannot fine-tune quantized model with `torch.compile()` make sure to pass a non-compiled model when fine-tuning a quantized model with PEFT"
)
# At this stage the model is already loaded
if _is_quantized_and_base_model and not _is_peft_model(model):
raise ValueError(
"You cannot perform fine-tuning on purely quantized models. Please attach trainable adapters on top of"
" the quantized model to correctly perform fine-tuning. Please see: https://huggingface.co/docs/transformers/peft"
" for more details"
)
elif _is_quantized_and_base_model and not _quantization_method_supports_training:
raise ValueError(
f"The model you are trying to fine-tune is quantized with {model.hf_quantizer.quantization_config.quant_method}"
" but that quantization method do not support training. Please open an issue on GitHub: https://github.com/huggingface/transformers"
f" to request the support for training support for {model.hf_quantizer.quantization_config.quant_method}"
)
self.is_fsdp_xla_enabled = args.fsdp_config["xla"]
if len(args.fsdp) > 0:
if self.is_deepspeed_enabled:
raise ValueError(
"Using --fsdp xxx together with --deepspeed is not possible, deactivate one of those flags."
)
if not args.fsdp_config["xla"] and args.parallel_mode != ParallelMode.DISTRIBUTED:
raise ValueError("Using fsdp only works in distributed training.")
# one place to sort out whether to place the model on device or not
# postpone switching model to cuda when:
# 1. MP - since we are trying to fit a much bigger than 1 gpu model
# 2. fp16-enabled DeepSpeed loads the model in half the size and it doesn't need .to() anyway,
# and we only use deepspeed for training at the moment
# 3. full bf16 or fp16 eval - since the model needs to be cast to the right dtype first
# 4. FSDP - same as MP
self.place_model_on_device = args.place_model_on_device
if (
self.is_model_parallel
or self.is_deepspeed_enabled
or ((args.fp16_full_eval or args.bf16_full_eval) and not args.do_train)
or self.is_fsdp_xla_enabled
or self.is_fsdp_enabled
):
self.place_model_on_device = False
default_collator = (
DataCollatorWithPadding(tokenizer)
if tokenizer is not None and isinstance(tokenizer, (PreTrainedTokenizerBase, SequenceFeatureExtractor))
else default_data_collator
)
self.data_collator = data_collator if data_collator is not None else default_collator
self.train_dataset = train_dataset
self.eval_dataset = eval_dataset
self.tokenizer = tokenizer
# Bnb Quantized models doesn't support `.to` operation.
if (
self.place_model_on_device
and not getattr(model, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES
):
self._move_model_to_device(model, args.device)
# Force n_gpu to 1 to avoid DataParallel as MP will manage the GPUs
if self.is_model_parallel:
self.args._n_gpu = 1
# later use `self.model is self.model_wrapped` to check if it's wrapped or not
self.model_wrapped = model
self.model = model
self.neftune_noise_alpha = args.neftune_noise_alpha
self.compute_metrics = compute_metrics
self.preprocess_logits_for_metrics = preprocess_logits_for_metrics
self.optimizer, self.lr_scheduler = optimizers
if model_init is not None and (self.optimizer is not None or self.lr_scheduler is not None):
raise RuntimeError(
"Passing a `model_init` is incompatible with providing the `optimizers` argument. "
"You should subclass `Trainer` and override the `create_optimizer_and_scheduler` method."
)
if is_torch_xla_available() and self.optimizer is not None:
for param in self.model.parameters():
model_device = param.device
break
for param_group in self.optimizer.param_groups:
if len(param_group["params"]) > 0:
optimizer_device = param_group["params"][0].device
break
if model_device != optimizer_device:
raise ValueError(
"The model and the optimizer parameters are not on the same device, which probably means you"
" created an optimizer around your model **before** putting on the device and passing it to the"
" `Trainer`. Make sure the lines `import torch_xla.core.xla_model as xm` and"
" `model.to(xm.xla_device())` is performed before the optimizer creation in your script."
)
if (self.is_deepspeed_enabled or self.is_fsdp_xla_enabled or self.is_fsdp_enabled) and (
self.optimizer is not None or self.lr_scheduler is not None
):
raise RuntimeError(
"Passing `optimizers` is not allowed if Deepspeed or PyTorch FSDP is enabled. "
"You should subclass `Trainer` and override the `create_optimizer_and_scheduler` method."
)
default_callbacks = DEFAULT_CALLBACKS + get_reporting_integration_callbacks(self.args.report_to)
callbacks = default_callbacks if callbacks is None else default_callbacks + callbacks
self.callback_handler = CallbackHandler(
callbacks, self.model, self.tokenizer, self.optimizer, self.lr_scheduler
)
self.add_callback(PrinterCallback if self.args.disable_tqdm else DEFAULT_PROGRESS_CALLBACK)
# Will be set to True by `self._setup_loggers()` on first call to `self.log()`.
self._loggers_initialized = False
# Create distant repo and output directory if needed
self.hub_model_id = None
if self.args.push_to_hub:
self.init_hf_repo()
if self.args.should_save:
os.makedirs(self.args.output_dir, exist_ok=True)
if not callable(self.data_collator) and callable(getattr(self.data_collator, "collate_batch", None)):
raise ValueError("The `data_collator` should be a simple callable (function, class with `__call__`).")
if args.max_steps > 0 and args.num_train_epochs > 0:
logger.warning("max_steps is given, it will override any value given in num_train_epochs")
if train_dataset is not None and not has_length(train_dataset) and args.max_steps <= 0:
raise ValueError(
"The train_dataset does not implement __len__, max_steps has to be specified. "
"The number of steps needs to be known in advance for the learning rate scheduler."
)
if (
train_dataset is not None
and isinstance(train_dataset, torch.utils.data.IterableDataset)
and args.group_by_length
):
raise ValueError("the `--group_by_length` option is only available for `Dataset`, not `IterableDataset")
self._signature_columns = None
# Mixed precision setup
self.use_apex = False
self.use_cpu_amp = False
# Mixed precision setup for SageMaker Model Parallel
if is_sagemaker_mp_enabled():
# BF16 + model parallelism in SageMaker: currently not supported, raise an error
if args.bf16:
raise ValueError("SageMaker Model Parallelism does not support BF16 yet. Please use FP16 instead ")
if IS_SAGEMAKER_MP_POST_1_10:
# When there's mismatch between SMP config and trainer argument, use SMP config as truth
if args.fp16 != smp.state.cfg.fp16:
logger.warning(
f"FP16 provided in SM_HP_MP_PARAMETERS is {smp.state.cfg.fp16}, "
f"but FP16 provided in trainer argument is {args.fp16}, "
f"setting to {smp.state.cfg.fp16}"
)
args.fp16 = smp.state.cfg.fp16
else:
# smp < 1.10 does not support fp16 in trainer.
if hasattr(smp.state.cfg, "fp16"):
logger.warning(
f"FP16 provided in SM_HP_MP_PARAMETERS is {smp.state.cfg.fp16}, "
"but SageMaker Model Parallelism < 1.10 does not support FP16 in trainer."
)
if (args.fp16 or args.bf16) and args.half_precision_backend == "auto":
if args.device == torch.device("cpu"):
if args.fp16:
if not is_torch_greater_or_equal_than_2_3:
raise ValueError("Tried to use `fp16` but it is not supported on cpu")
else:
args.half_precision_backend = "cpu_amp"
logger.info(f"Using {args.half_precision_backend} half precision backend")
if (args.fp16 or args.bf16) and not (self.is_deepspeed_enabled or is_sagemaker_mp_enabled()):
# deepspeed and SageMaker Model Parallel manage their own half precision
if args.half_precision_backend == "cpu_amp":
self.use_cpu_amp = True
self.amp_dtype = torch.bfloat16
elif args.half_precision_backend == "apex":
if not is_apex_available():
raise ImportError(
"Using FP16 with APEX but APEX is not installed, please refer to"
" https://www.github.com/nvidia/apex."
)
self.use_apex = True
# Label smoothing
if self.args.label_smoothing_factor != 0:
self.label_smoother = LabelSmoother(epsilon=self.args.label_smoothing_factor)
else:
self.label_smoother = None
self.control = TrainerControl()
self.state = TrainerState(
is_local_process_zero=self.is_local_process_zero(),
is_world_process_zero=self.is_world_process_zero(),
stateful_callbacks=[
cb for cb in self.callback_handler.callbacks + [self.control] if isinstance(cb, ExportableState)
],
)
# Internal variable to count flos in each process, will be accumulated in `self.state.total_flos` then
# returned to 0 every time flos need to be logged
self.current_flos = 0
self.hp_search_backend = None
default_label_names = find_labels(self.model.__class__)
self.label_names = default_label_names if self.args.label_names is None else self.args.label_names
self.can_return_loss = can_return_loss(self.model.__class__)
self.control = self.callback_handler.on_init_end(self.args, self.state, self.control)
# Internal variables to help with automatic batch size reduction
self._train_batch_size = args.train_batch_size
self._created_lr_scheduler = False
# very last
self._memory_tracker.stop_and_update_metrics()
# torch.compile
if args.torch_compile and not is_torch_compile_available():
raise RuntimeError("Using torch.compile requires PyTorch 2.0 or higher.")
self.is_fsdp_xla_v2_enabled = args.fsdp_config.get("xla_fsdp_v2", False)
if self.is_fsdp_xla_v2_enabled:
if not IS_XLA_FSDPV2_POST_2_2:
raise ValueError("FSDPv2 requires `torch_xla` 2.2 or higher.")
# Prepare the SPMD mesh that is going to be used by the data loader and the FSDPv2 wrapper.
# Tensor axis is just a placeholder where it will not be used in FSDPv2.
num_devices = xr.global_runtime_device_count()
xs.set_global_mesh(xs.Mesh(np.array(range(num_devices)), (num_devices, 1), axis_names=("fsdp", "tensor")))
def _activate_neftune(self, model):
r"""
Activates the neftune as presented in this code: https://github.com/neelsjain/NEFTune and paper:
https://arxiv.org/abs/2310.05914
"""
unwrapped_model = self.accelerator.unwrap_model(model)
if _is_peft_model(unwrapped_model):
embeddings = unwrapped_model.base_model.model.get_input_embeddings()
else:
embeddings = unwrapped_model.get_input_embeddings()
del unwrapped_model
embeddings.neftune_noise_alpha = self.neftune_noise_alpha
hook_handle = embeddings.register_forward_hook(neftune_post_forward_hook)
self.neftune_hook_handle = hook_handle
return model
def _deactivate_neftune(self, model):
"""
Deactivates the neftune method. Make sure to call `_activate_neftune` first.
"""
if not hasattr(self, "neftune_hook_handle"):
raise ValueError("Neftune is not activated make sure to call `trainer._activate_neftune()` first")
unwrapped_model = self.accelerator.unwrap_model(model)
if _is_peft_model(unwrapped_model):
embeddings = unwrapped_model.base_model.model.get_input_embeddings()
else:
embeddings = unwrapped_model.get_input_embeddings()
self.neftune_hook_handle.remove()
del embeddings.neftune_noise_alpha, unwrapped_model
def add_callback(self, callback):
"""
Add a callback to the current list of [`~transformers.TrainerCallback`].
Args:
callback (`type` or [`~transformers.TrainerCallback`]):
A [`~transformers.TrainerCallback`] class or an instance of a [`~transformers.TrainerCallback`]. In the
first case, will instantiate a member of that class.
"""
self.callback_handler.add_callback(callback)
def pop_callback(self, callback):
"""
Remove a callback from the current list of [`~transformers.TrainerCallback`] and returns it.
If the callback is not found, returns `None` (and no error is raised).
Args:
callback (`type` or [`~transformers.TrainerCallback`]):
A [`~transformers.TrainerCallback`] class or an instance of a [`~transformers.TrainerCallback`]. In the
first case, will pop the first member of that class found in the list of callbacks.
Returns:
[`~transformers.TrainerCallback`]: The callback removed, if found.
"""
return self.callback_handler.pop_callback(callback)
def remove_callback(self, callback):
"""
Remove a callback from the current list of [`~transformers.TrainerCallback`].
Args:
callback (`type` or [`~transformers.TrainerCallback`]):
A [`~transformers.TrainerCallback`] class or an instance of a [`~transformers.TrainerCallback`]. In the
first case, will remove the first member of that class found in the list of callbacks.
"""
self.callback_handler.remove_callback(callback)
def _move_model_to_device(self, model, device):
model = model.to(device)
# Moving a model to an XLA device disconnects the tied weights, so we have to retie them.
if self.args.parallel_mode == ParallelMode.TPU and hasattr(model, "tie_weights"):
model.tie_weights()
def _set_signature_columns_if_needed(self):
if self._signature_columns is None:
# Inspect model forward signature to keep only the arguments it accepts.
model_to_inspect = self.model
if _is_peft_model(self.model):
if hasattr(self.model, "get_base_model"):
model_to_inspect = self.model.get_base_model()
else:
# PeftMixedModel do not provide a `get_base_model` method
model_to_inspect = self.model.base_model.model
signature = inspect.signature(model_to_inspect.forward)
self._signature_columns = list(signature.parameters.keys())
# Labels may be named label or label_ids, the default data collator handles that.
self._signature_columns += list(set(["label", "label_ids"] + self.label_names))
def _remove_unused_columns(self, dataset: "datasets.Dataset", description: Optional[str] = None):
if not self.args.remove_unused_columns:
return dataset
self._set_signature_columns_if_needed()
signature_columns = self._signature_columns
ignored_columns = list(set(dataset.column_names) - set(signature_columns))
if len(ignored_columns) > 0:
dset_description = "" if description is None else f"in the {description} set"
logger.info(
f"The following columns {dset_description} don't have a corresponding argument in "
f"`{self.model.__class__.__name__}.forward` and have been ignored: {', '.join(ignored_columns)}."
f" If {', '.join(ignored_columns)} are not expected by `{self.model.__class__.__name__}.forward`, "
" you can safely ignore this message."
)
columns = [k for k in signature_columns if k in dataset.column_names]
if version.parse(datasets.__version__) < version.parse("1.4.0"):
dataset.set_format(
type=dataset.format["type"], columns=columns, format_kwargs=dataset.format["format_kwargs"]
)
return dataset
else:
return dataset.remove_columns(ignored_columns)
def _get_collator_with_removed_columns(
self, data_collator: Callable, description: Optional[str] = None
) -> Callable:
"""Wrap the data collator in a callable removing unused columns."""
if not self.args.remove_unused_columns:
return data_collator
self._set_signature_columns_if_needed()
signature_columns = self._signature_columns
remove_columns_collator = RemoveColumnsCollator(
data_collator=data_collator,
signature_columns=signature_columns,
logger=logger,
description=description,
model_name=self.model.__class__.__name__,
)
return remove_columns_collator
def _get_train_sampler(self) -> Optional[torch.utils.data.Sampler]:
if self.train_dataset is None or not has_length(self.train_dataset):
return None
# Build the sampler.
if self.args.group_by_length:
if is_datasets_available() and isinstance(self.train_dataset, datasets.Dataset):
lengths = (
self.train_dataset[self.args.length_column_name]
if self.args.length_column_name in self.train_dataset.column_names
else None
)
else:
lengths = None
model_input_name = self.tokenizer.model_input_names[0] if self.tokenizer is not None else None
return LengthGroupedSampler(
self.args.train_batch_size * self.args.gradient_accumulation_steps,
dataset=self.train_dataset,
lengths=lengths,
model_input_name=model_input_name,
)
else:
return RandomSampler(self.train_dataset)
def get_train_dataloader(self) -> DataLoader:
"""
Returns the training [`~torch.utils.data.DataLoader`].
Will use no sampler if `train_dataset` does not implement `__len__`, a random sampler (adapted to distributed
training if necessary) otherwise.
Subclass and override this method if you want to inject some custom behavior.
"""
if self.train_dataset is None:
raise ValueError("Trainer: training requires a train_dataset.")
train_dataset = self.train_dataset
data_collator = self.data_collator
if is_datasets_available() and isinstance(train_dataset, datasets.Dataset):
train_dataset = self._remove_unused_columns(train_dataset, description="training")
else:
data_collator = self._get_collator_with_removed_columns(data_collator, description="training")
dataloader_params = {
"batch_size": self._train_batch_size,
"collate_fn": data_collator,
"num_workers": self.args.dataloader_num_workers,
"pin_memory": self.args.dataloader_pin_memory,
"persistent_workers": self.args.dataloader_persistent_workers,
}
if not isinstance(train_dataset, torch.utils.data.IterableDataset):
dataloader_params["sampler"] = self._get_train_sampler()
dataloader_params["drop_last"] = self.args.dataloader_drop_last
dataloader_params["worker_init_fn"] = seed_worker
dataloader_params["prefetch_factor"] = self.args.dataloader_prefetch_factor
return self.accelerator.prepare(DataLoader(train_dataset, **dataloader_params))
def _get_eval_sampler(self, eval_dataset: Dataset) -> Optional[torch.utils.data.Sampler]:
# Deprecated code
if self.args.use_legacy_prediction_loop:
if is_torch_xla_available():
return SequentialDistributedSampler(
eval_dataset, num_replicas=xm.xrt_world_size(), rank=xm.get_ordinal()
)
elif is_sagemaker_mp_enabled():
return SequentialDistributedSampler(
eval_dataset,
num_replicas=smp.dp_size(),
rank=smp.dp_rank(),
batch_size=self.args.per_device_eval_batch_size,
)
else:
return SequentialSampler(eval_dataset)
if self.args.world_size <= 1:
return SequentialSampler(eval_dataset)
else:
return None
def get_eval_dataloader(self, eval_dataset: Optional[Dataset] = None) -> DataLoader:
"""
Returns the evaluation [`~torch.utils.data.DataLoader`].
Subclass and override this method if you want to inject some custom behavior.
Args:
eval_dataset (`torch.utils.data.Dataset`, *optional*):
If provided, will override `self.eval_dataset`. If it is a [`~datasets.Dataset`], columns not accepted
by the `model.forward()` method are automatically removed. It must implement `__len__`.
"""
if eval_dataset is None and self.eval_dataset is None:
raise ValueError("Trainer: evaluation requires an eval_dataset.")
# If we have persistent workers, don't do a fork bomb especially as eval datasets
# don't change during training
if hasattr(self, "_eval_dataloader") and self.args.dataloader_persistent_workers:
return self.accelerator.prepare(self._eval_dataloader)
eval_dataset = eval_dataset if eval_dataset is not None else self.eval_dataset
data_collator = self.data_collator
if is_datasets_available() and isinstance(eval_dataset, datasets.Dataset):
eval_dataset = self._remove_unused_columns(eval_dataset, description="evaluation")
else:
data_collator = self._get_collator_with_removed_columns(data_collator, description="evaluation")
dataloader_params = {
"batch_size": self.args.eval_batch_size,
"collate_fn": data_collator,
"num_workers": self.args.dataloader_num_workers,
"pin_memory": self.args.dataloader_pin_memory,
"persistent_workers": self.args.dataloader_persistent_workers,
}
if not isinstance(eval_dataset, torch.utils.data.IterableDataset):
dataloader_params["sampler"] = self._get_eval_sampler(eval_dataset)
dataloader_params["drop_last"] = self.args.dataloader_drop_last
dataloader_params["prefetch_factor"] = self.args.dataloader_prefetch_factor
# accelerator.free_memory() will destroy the references, so
# we need to store the non-prepared version
eval_dataloader = DataLoader(eval_dataset, **dataloader_params)
if self.args.dataloader_persistent_workers:
self._eval_dataloader = eval_dataloader
return self.accelerator.prepare(eval_dataloader)
def get_test_dataloader(self, test_dataset: Dataset) -> DataLoader:
"""
Returns the test [`~torch.utils.data.DataLoader`].
Subclass and override this method if you want to inject some custom behavior.
Args:
test_dataset (`torch.utils.data.Dataset`, *optional*):
The test dataset to use. If it is a [`~datasets.Dataset`], columns not accepted by the
`model.forward()` method are automatically removed. It must implement `__len__`.
"""
data_collator = self.data_collator
if is_datasets_available() and isinstance(test_dataset, datasets.Dataset):
test_dataset = self._remove_unused_columns(test_dataset, description="test")
else:
data_collator = self._get_collator_with_removed_columns(data_collator, description="test")
dataloader_params = {
"batch_size": self.args.eval_batch_size,
"collate_fn": data_collator,
"num_workers": self.args.dataloader_num_workers,
"pin_memory": self.args.dataloader_pin_memory,
"persistent_workers": self.args.dataloader_persistent_workers,
}
if not isinstance(test_dataset, torch.utils.data.IterableDataset):
dataloader_params["sampler"] = self._get_eval_sampler(test_dataset)
dataloader_params["drop_last"] = self.args.dataloader_drop_last
dataloader_params["prefetch_factor"] = self.args.dataloader_prefetch_factor
# We use the same batch_size as for eval.
return self.accelerator.prepare(DataLoader(test_dataset, **dataloader_params))
def create_optimizer_and_scheduler(self, num_training_steps: int):
"""
Setup the optimizer and the learning rate scheduler.
We provide a reasonable default that works well. If you want to use something else, you can pass a tuple in the
Trainer's init through `optimizers`, or subclass and override this method (or `create_optimizer` and/or
`create_scheduler`) in a subclass.
"""
self.create_optimizer()
if IS_SAGEMAKER_MP_POST_1_10 and smp.state.cfg.fp16:
# If smp >= 1.10 and fp16 is enabled, we unwrap the optimizer
optimizer = self.optimizer.optimizer
else:
optimizer = self.optimizer
self.create_scheduler(num_training_steps=num_training_steps, optimizer=optimizer)
def get_decay_parameter_names(self, model) -> List[str]:
"""
Get all parameter names that weight decay will be applied to
Note that some models implement their own layernorm instead of calling nn.LayerNorm, weight decay could still
apply to those modules since this function only filter out instance of nn.LayerNorm
"""
decay_parameters = get_parameter_names(model, ALL_LAYERNORM_LAYERS)
decay_parameters = [name for name in decay_parameters if "bias" not in name]
return decay_parameters
def create_optimizer(self):
"""
Setup the optimizer.
We provide a reasonable default that works well. If you want to use something else, you can pass a tuple in the
Trainer's init through `optimizers`, or subclass and override this method in a subclass.
"""
opt_model = self.model_wrapped if is_sagemaker_mp_enabled() else self.model
if self.optimizer is None:
decay_parameters = self.get_decay_parameter_names(opt_model)
optimizer_grouped_parameters = [
{
"params": [
p for n, p in opt_model.named_parameters() if (n in decay_parameters and p.requires_grad)
],
"weight_decay": self.args.weight_decay,
},
{
"params": [
p for n, p in opt_model.named_parameters() if (n not in decay_parameters and p.requires_grad)
],
"weight_decay": 0.0,
},
]
optimizer_cls, optimizer_kwargs = Trainer.get_optimizer_cls_and_kwargs(self.args, opt_model)
# Overwrite `params` in case it's created by `get_optimizer_cls_and_kwargs`
# e.g. for GaLore optimizer.
if "params" in optimizer_kwargs:
optimizer_grouped_parameters = optimizer_kwargs.pop("params")
# For layer-wise dummy optimizers we overwrite optimizer_grouped_parameters with `optimizer_dict`
# to avoid arguments conflicts.
if "optimizer_dict" in optimizer_kwargs:
optimizer_grouped_parameters = optimizer_kwargs.pop("optimizer_dict")
self.optimizer = optimizer_cls(optimizer_grouped_parameters, **optimizer_kwargs)
if optimizer_cls.__name__ == "Adam8bit":
import bitsandbytes
manager = bitsandbytes.optim.GlobalOptimManager.get_instance()
skipped = 0
for module in opt_model.modules():
if isinstance(module, nn.Embedding):
skipped += sum({p.data_ptr(): p.numel() for p in module.parameters()}.values())
logger.info(f"skipped {module}: {skipped/2**20}M params")
manager.register_module_override(module, "weight", {"optim_bits": 32})
logger.debug(f"bitsandbytes: will optimize {module} in fp32")
logger.info(f"skipped: {skipped/2**20}M params")
if is_sagemaker_mp_enabled():
self.optimizer = smp.DistributedOptimizer(self.optimizer)
return self.optimizer
def get_num_trainable_parameters(self):
"""
Get the number of trainable parameters.
"""
return sum(p.numel() for p in self.model.parameters() if p.requires_grad)
def get_learning_rates(self):
"""
Returns the learning rate of each parameter from self.optimizer.
"""
if self.optimizer is None:
raise ValueError("Trainer optimizer is None, please make sure you have setup the optimizer before.")
return [group["lr"] for group in self.optimizer.param_groups]
def get_optimizer_group(self, param: Optional[Union[str, torch.nn.parameter.Parameter]] = None):
"""
Returns optimizer group for a parameter if given, else returns all optimizer groups for params.
Args:
param (`str` or `torch.nn.parameter.Parameter`, *optional*):
The parameter for which optimizer group needs to be returned.
"""
if self.optimizer is None:
raise ValueError("Trainer optimizer is None, please make sure you have setup the optimizer before.")
if param is not None:
for group in self.optimizer.param_groups:
if param in group["params"]:
return group
return [group["params"] for group in self.optimizer.param_groups]
@staticmethod
def get_optimizer_cls_and_kwargs(
args: TrainingArguments, model: Optional[PreTrainedModel] = None
) -> Tuple[Any, Any]:
"""
Returns the optimizer class and optimizer parameters based on the training arguments.
Args:
args (`transformers.training_args.TrainingArguments`):
The training arguments for the training session.
"""
# parse args.optim_args
optim_args = {}
if args.optim_args:
for mapping in args.optim_args.replace(" ", "").split(","):
key, value = mapping.split("=")
optim_args[key] = value
optimizer_kwargs = {"lr": args.learning_rate}
adam_kwargs = {
"betas": (args.adam_beta1, args.adam_beta2),
"eps": args.adam_epsilon,
}
if args.optim == OptimizerNames.ADAFACTOR:
optimizer_cls = Adafactor
optimizer_kwargs.update({"scale_parameter": False, "relative_step": False})
elif args.optim == OptimizerNames.ADAMW_HF:
from .optimization import AdamW
optimizer_cls = AdamW
optimizer_kwargs.update(adam_kwargs)
elif args.optim in [OptimizerNames.ADAMW_TORCH, OptimizerNames.ADAMW_TORCH_FUSED]:
from torch.optim import AdamW
optimizer_cls = AdamW
optimizer_kwargs.update(adam_kwargs)
if args.optim == OptimizerNames.ADAMW_TORCH_FUSED:
optimizer_kwargs.update({"fused": True})
elif args.optim == OptimizerNames.ADAMW_TORCH_XLA:
try:
from torch_xla.amp.syncfree import AdamW
optimizer_cls = AdamW
optimizer_kwargs.update(adam_kwargs)
except ImportError:
raise ValueError("Trainer failed to import syncfree AdamW from torch_xla.")
elif args.optim == OptimizerNames.ADAMW_TORCH_NPU_FUSED:
try:
from torch_npu.optim import NpuFusedAdamW
optimizer_cls = NpuFusedAdamW
optimizer_kwargs.update(adam_kwargs)
except ImportError:
raise ValueError("Trainer failed to import FusedAdamW from torch_npu.")
elif args.optim == OptimizerNames.ADAMW_APEX_FUSED:
try:
from apex.optimizers import FusedAdam
optimizer_cls = FusedAdam
optimizer_kwargs.update(adam_kwargs)
except ImportError:
raise ValueError("Trainer tried to instantiate apex FusedAdam but apex is not installed!")
elif args.optim in [
OptimizerNames.ADAMW_BNB,
OptimizerNames.ADAMW_8BIT,
OptimizerNames.PAGED_ADAMW,
OptimizerNames.PAGED_ADAMW_8BIT,
OptimizerNames.LION,
OptimizerNames.LION_8BIT,
OptimizerNames.PAGED_LION,
OptimizerNames.PAGED_LION_8BIT,
OptimizerNames.RMSPROP_BNB,
OptimizerNames.RMSPROP_8BIT,
OptimizerNames.RMSPROP_32BIT,
]:
try:
from bitsandbytes.optim import AdamW, Lion, RMSprop
is_paged = False
optim_bits = 32
optimizer_cls = None
additional_optim_kwargs = adam_kwargs
if "paged" in args.optim:
is_paged = True
if "8bit" in args.optim:
optim_bits = 8
if "adam" in args.optim:
optimizer_cls = AdamW
elif "lion" in args.optim:
optimizer_cls = Lion
additional_optim_kwargs = {"betas": (args.adam_beta1, args.adam_beta2)}
elif "rmsprop" in args.optim:
optimizer_cls = RMSprop
# Above we pass all `adam_kwargs` to the optimizer, here
# we only pass `optim_args` which can be passed by the user.
additional_optim_kwargs = optim_args
bnb_kwargs = {"optim_bits": optim_bits}
if "rmsprop" not in args.optim:
bnb_kwargs["is_paged"] = is_paged
optimizer_kwargs.update(additional_optim_kwargs)
optimizer_kwargs.update(bnb_kwargs)
except ImportError:
raise ValueError("Trainer tried to instantiate bnb optimizer but bnb is not installed!")
if is_bitsandbytes_available() and version.parse(
importlib.metadata.version("bitsandbytes")
) < version.parse("0.41.1"):
logger.warning(
"You are using 8-bit optimizers with a version of `bitsandbytes` < 0.41.1. "
"It is recommended to update your version as a major bug has been fixed in 8-bit optimizers."
)
elif args.optim == OptimizerNames.ADAMW_ANYPRECISION:
try:
from torchdistx.optimizers import AnyPrecisionAdamW
optimizer_cls = AnyPrecisionAdamW
optimizer_kwargs.update(adam_kwargs)
# TODO Change dtypes back to M=FP32, Var = BF16, Kahan = False once they can be cast together in torchdistx.
optimizer_kwargs.update(
{
"use_kahan_summation": strtobool(optim_args.get("use_kahan_summation", "False")),
"momentum_dtype": getattr(torch, optim_args.get("momentum_dtype", "float32")),
"variance_dtype": getattr(torch, optim_args.get("variance_dtype", "float32")),
"compensation_buffer_dtype": getattr(
torch, optim_args.get("compensation_buffer_dtype", "bfloat16")
),
}
)
except ImportError:
raise ValueError("Please install https://github.com/pytorch/torchdistx")
elif args.optim == OptimizerNames.SGD:
optimizer_cls = torch.optim.SGD
elif args.optim == OptimizerNames.ADAGRAD:
optimizer_cls = torch.optim.Adagrad
elif args.optim == OptimizerNames.RMSPROP:
optimizer_cls = torch.optim.RMSprop
elif args.optim in [
OptimizerNames.GALORE_ADAMW,
OptimizerNames.GALORE_ADAMW_8BIT,
OptimizerNames.GALORE_ADAFACTOR,
OptimizerNames.GALORE_ADAMW_LAYERWISE,
OptimizerNames.GALORE_ADAMW_8BIT_LAYERWISE,
OptimizerNames.GALORE_ADAFACTOR_LAYERWISE,
]:
if not is_galore_torch_available():
raise ImportError(
"You need to install `galore_torch` in order to use GaLore optimizers"
" install it with `pip install git+https://github.com/jiaweizzhao/GaLore`"
)
from galore_torch import GaLoreAdafactor, GaLoreAdamW, GaLoreAdamW8bit
is_layerwise = args.optim.lower().endswith("layerwise")
if is_layerwise and args.parallel_mode == ParallelMode.DISTRIBUTED:
raise NotImplementedError("Layer-wise GaLore does not support DDP at this time")
optimizer_mapping = {
OptimizerNames.GALORE_ADAMW: GaLoreAdamW,
OptimizerNames.GALORE_ADAMW_8BIT: GaLoreAdamW8bit,
OptimizerNames.GALORE_ADAFACTOR: GaLoreAdafactor,
OptimizerNames.GALORE_ADAMW_LAYERWISE: GaLoreAdamW,
OptimizerNames.GALORE_ADAMW_8BIT_LAYERWISE: GaLoreAdamW8bit,
OptimizerNames.GALORE_ADAFACTOR_LAYERWISE: GaLoreAdafactor,
}
optimizer_cls = optimizer_mapping[args.optim]
if args.optim_target_modules is None:
raise ValueError(
"You need to define a `optim_target_modules` in order to properly use GaLore optimizers"
)
if not isinstance(args.optim_target_modules, (list, str)):
raise ValueError(
f"`optim_target_modules` has to be a list of strings, a string corresponding to a regex, or a specific module or 'all-linear', you passed {args.optim_target_modules}"
)
if model is None:
raise ValueError("You need to pass a model in order to correctly initialize a GaLore optimizer.")
logger.warning(
"Activated GaLoRE fine-tuning, depending on your model size and hardware, the training might take a while before starting. Please be patient !"
)
all_linear = (
isinstance(args.optim_target_modules, str)
and args.optim_target_modules.replace("_", "-") == "all-linear"
)
galore_params = []
galore_params_names = []
for module_name, module in model.named_modules():
target_module_exists, is_regex = check_target_module_exists(
args.optim_target_modules, module_name, return_is_regex=True
)
if not isinstance(module, nn.Linear):
# Warn in case we match but it's not a linear layer
if target_module_exists and not is_regex:
logger.warning(
f"{module_name} has been matched but ignored as GaLore only supports linear layers. Please double check your `optim_target_modules`!"
)
continue
if not target_module_exists and not all_linear:
continue
galore_params.append(module.weight)
galore_params_names.append(module_name + ".weight")
if len(galore_params) == 0:
raise ValueError(
f"None of the target modules were found! ({args.optim_target_modules}). Please make sure to pass a valid `target_modules`."
)
non_galore_params = [p for n, p in model.named_parameters() if n not in galore_params_names]
galore_optim_kwargs = {
"rank": int(optim_args.pop("rank", 128)),
"update_proj_gap": int(optim_args.pop("update_proj_gap", 200)),
"scale": float(optim_args.pop("scale", 0.25)),
"proj_type": optim_args.pop("proj_type", "std"),
}
# The default args are from the official repository: https://github.com/jiaweizzhao/GaLore
param_groups = [
{"params": non_galore_params},
{"params": galore_params, **galore_optim_kwargs},
]
if is_layerwise:
# For layer-wise optimizers, the optimization step is done through post accumulation
# gradient hooks. The trick is to first attach these hooks to the model parameters then
# create a dummy optimizer that will perform no-ops in the Trainer.
# See the original implementation or the nice implementation from @hiyouga
# here: https://github.com/hiyouga/LLaMA-Factory/commit/8664262cde3919e10eaecbd66e8c5d356856362e#diff-ebe08ab14496dfb9e06075f0fdd36799ef6d1535cc4dd4715b74c4e3e06fe3ba
if args.gradient_accumulation_steps != 1:
raise ValueError("Layerwise GaLoRE optimizer do not support gradient accumulation !")
optimizer_dict = {}
for param in non_galore_params:
param_groups = [{"params": [param]}]
optimizer_dict[param] = optimizer_cls(param_groups, **optimizer_kwargs)
for param in galore_params:
param_groups = [{"params": [param], **galore_optim_kwargs}]
optimizer_dict[param] = optimizer_cls(param_groups, **optimizer_kwargs)
def optimizer_hook(param):
if param.grad is not None:
optimizer_dict[param].step()
optimizer_dict[param].zero_grad()
for param in model.parameters():
if param.requires_grad:
param.register_post_accumulate_grad_hook(optimizer_hook)
optimizer_cls = LayerWiseDummyOptimizer
optimizer_kwargs.update({"optimizer_dict": optimizer_dict})
optimizer_kwargs.update({"params": param_groups})
if args.optim == OptimizerNames.GALORE_ADAFACTOR:
optimizer_kwargs.update({"scale_parameter": False, "relative_step": False})
else:
raise ValueError(f"Trainer cannot instantiate unsupported optimizer: {args.optim}")
return optimizer_cls, optimizer_kwargs
def create_scheduler(self, num_training_steps: int, optimizer: torch.optim.Optimizer = None):
"""
Setup the scheduler. The optimizer of the trainer must have been set up either before this method is called or
passed as an argument.
Args:
num_training_steps (int): The number of training steps to do.
"""
if self.lr_scheduler is None:
self.lr_scheduler = get_scheduler(
self.args.lr_scheduler_type,
optimizer=self.optimizer if optimizer is None else optimizer,
num_warmup_steps=self.args.get_warmup_steps(num_training_steps),
num_training_steps=num_training_steps,
scheduler_specific_kwargs=self.args.lr_scheduler_kwargs,
)
self._created_lr_scheduler = True
return self.lr_scheduler
def num_examples(self, dataloader: DataLoader) -> int:
"""
Helper to get number of samples in a [`~torch.utils.data.DataLoader`] by accessing its dataset. When
dataloader.dataset does not exist or has no length, estimates as best it can
"""
try:
dataset = dataloader.dataset
# Special case for IterableDatasetShard, we need to dig deeper
if isinstance(dataset, IterableDatasetShard):
return len(dataloader.dataset.dataset)
return len(dataloader.dataset)
except (NameError, AttributeError, TypeError): # no dataset or length, estimate by length of dataloader
return len(dataloader) * self.args.per_device_train_batch_size
def num_tokens(self, train_dl: DataLoader, max_steps: Optional[int] = None) -> int:
"""
Helper to get number of tokens in a [`~torch.utils.data.DataLoader`] by enumerating dataloader.
"""
train_tokens = 0
try:
for step, batch in enumerate(train_dl):
tokens = batch["input_ids"].numel()
if max_steps is not None:
return tokens * max_steps
train_tokens += tokens
return train_tokens
except KeyError:
logger.warning("Cannot get num_tokens from dataloader")
return train_tokens
def _hp_search_setup(self, trial: Union["optuna.Trial", Dict[str, Any]]):
"""HP search setup code"""
self._trial = trial
if self.hp_search_backend is None or trial is None:
return
if self.hp_search_backend == HPSearchBackend.OPTUNA:
params = self.hp_space(trial)
elif self.hp_search_backend == HPSearchBackend.RAY:
params = trial
params.pop("wandb", None)
elif self.hp_search_backend == HPSearchBackend.SIGOPT:
params = {k: int(v) if isinstance(v, str) else v for k, v in trial.assignments.items()}
elif self.hp_search_backend == HPSearchBackend.WANDB:
params = trial
for key, value in params.items():
if not hasattr(self.args, key):
logger.warning(
f"Trying to set {key} in the hyperparameter search but there is no corresponding field in"
" `TrainingArguments`."
)
continue
old_attr = getattr(self.args, key, None)
# Casting value to the proper type
if old_attr is not None:
value = type(old_attr)(value)
setattr(self.args, key, value)
if self.hp_search_backend == HPSearchBackend.OPTUNA:
logger.info(f"Trial: {trial.params}")
if self.hp_search_backend == HPSearchBackend.SIGOPT:
logger.info(f"SigOpt Assignments: {trial.assignments}")
if self.hp_search_backend == HPSearchBackend.WANDB:
logger.info(f"W&B Sweep parameters: {trial}")
if self.is_deepspeed_enabled:
if self.args.deepspeed is None:
raise ValueError("For sweeps with deepspeed, `args.deepspeed` must be set")
# Rebuild the deepspeed config to reflect the updated training parameters
from accelerate.utils import DeepSpeedPlugin
from transformers.integrations.deepspeed import HfTrainerDeepSpeedConfig
self.args.hf_deepspeed_config = HfTrainerDeepSpeedConfig(self.args.deepspeed)
self.args.hf_deepspeed_config.trainer_config_process(self.args)
self.args.deepspeed_plugin = DeepSpeedPlugin(hf_ds_config=self.args.hf_deepspeed_config)
self.create_accelerator_and_postprocess()
def _report_to_hp_search(self, trial: Union["optuna.Trial", Dict[str, Any]], step: int, metrics: Dict[str, float]):
if self.hp_search_backend is None or trial is None:
return
metrics = metrics.copy()
self.objective = self.compute_objective(metrics)
if self.hp_search_backend == HPSearchBackend.OPTUNA:
import optuna
if not trial.study._is_multi_objective():
trial.report(self.objective, step)
if trial.should_prune():
self.callback_handler.on_train_end(self.args, self.state, self.control)
raise optuna.TrialPruned()
elif self.hp_search_backend == HPSearchBackend.RAY:
import ray.train
with tempfile.TemporaryDirectory() as temp_checkpoint_dir:
checkpoint = None
if self.control.should_save:
self._tune_save_checkpoint(checkpoint_dir=temp_checkpoint_dir)
checkpoint = ray.train.Checkpoint.from_directory(temp_checkpoint_dir)
metrics["objective"] = self.objective
ray.train.report(metrics, checkpoint=checkpoint)
def _tune_save_checkpoint(self, checkpoint_dir: str):
output_dir = os.path.join(checkpoint_dir, f"{PREFIX_CHECKPOINT_DIR}-{self.state.global_step}")
self.save_model(output_dir, _internal_call=True)
if self.args.should_save:
# Update the `TrainerControl` state to where we are currently
self.state.stateful_callbacks["TrainerControl"] = self.control.state()
self.state.save_to_json(os.path.join(output_dir, TRAINER_STATE_NAME))
torch.save(self.optimizer.state_dict(), os.path.join(output_dir, OPTIMIZER_NAME))
torch.save(self.lr_scheduler.state_dict(), os.path.join(output_dir, SCHEDULER_NAME))
def call_model_init(self, trial=None):
model_init_argcount = number_of_arguments(self.model_init)
if model_init_argcount == 0:
model = self.model_init()
elif model_init_argcount == 1:
model = self.model_init(trial)
else:
raise RuntimeError("model_init should have 0 or 1 argument.")
if model is None:
raise RuntimeError("model_init should not return None.")
return model
def torch_jit_model_eval(self, model, dataloader, training=False):
if not training:
if dataloader is None:
logger.warning("failed to use PyTorch jit mode due to current dataloader is none.")
return model
example_batch = next(iter(dataloader))
example_batch = self._prepare_inputs(example_batch)
try:
jit_model = copy.copy(model)
jit_model.eval()
original_forward = jit_model.__dict__.pop("_original_forward", None)
# remove mixed precision hooks from the model
if original_forward:
jit_model.forward = original_forward
with self.accelerator.autocast(cache_enabled=False), torch.no_grad():
if version.parse(version.parse(torch.__version__).base_version) >= version.parse("2.0.0"):
if isinstance(example_batch, dict):
jit_model = torch.jit.trace(jit_model, example_kwarg_inputs=example_batch, strict=False)
else:
jit_model = torch.jit.trace(
jit_model,
example_kwarg_inputs={key: example_batch[key] for key in example_batch},
strict=False,
)
else:
jit_inputs = []
for key in example_batch:
example_tensor = torch.ones_like(example_batch[key])
jit_inputs.append(example_tensor)
jit_inputs = tuple(jit_inputs)
jit_model = torch.jit.trace(jit_model, jit_inputs, strict=False)
jit_model = torch.jit.freeze(jit_model)
with torch.no_grad():
jit_model(**example_batch)
jit_model(**example_batch)
model = jit_model
self.use_cpu_amp = False
except (RuntimeError, TypeError, ValueError, NameError, IndexError) as e:
logger.warning(f"failed to use PyTorch jit mode due to: {e}.")
return model
def ipex_optimize_model(self, model, training=False, dtype=torch.float32):
if not is_ipex_available():
raise ImportError(
"Using IPEX but IPEX is not installed or IPEX's version does not match current PyTorch, please refer"
" to https://github.com/intel/intel-extension-for-pytorch."
)
import intel_extension_for_pytorch as ipex
if not training:
model.eval()
dtype = torch.bfloat16 if not self.is_in_train and self.args.bf16_full_eval else dtype
# conv_bn_folding is disabled as it fails in symbolic tracing, resulting in ipex warnings
model = ipex.optimize(model, dtype=dtype, level="O1", conv_bn_folding=False, inplace=not self.is_in_train)
else:
if not model.training:
model.train()
model, self.optimizer = ipex.optimize(
model, dtype=dtype, optimizer=self.optimizer, inplace=True, level="O1"
)
return model
def compare_trainer_and_checkpoint_args(self, training_args, trainer_state):
attributes_map = {
"logging_steps": "logging_steps",
"eval_steps": "eval_steps",
"save_steps": "save_steps",
}
has_warning = False
warning_str = "Warning: The following arguments do not match the ones in the `trainer_state.json` within the checkpoint directory: "
for arg_attr, state_attr in attributes_map.items():
arg_value = getattr(training_args, arg_attr, None)
state_value = getattr(trainer_state, state_attr, None)
if arg_value is not None and state_value is not None and arg_value != state_value:
warning_str += f"\n\t{arg_attr}: {arg_value} (from args) != {state_value} (from trainer_state.json)"
has_warning = True
# train bs is special as we need to account for multi-GPU
train_bs_args = training_args.per_device_train_batch_size
train_bs_state = trainer_state.train_batch_size // max(1, training_args.n_gpu)
if train_bs_args != train_bs_state:
warning_str += f"\n\tper_device_train_batch_size: {train_bs_args} (from args) != {train_bs_state} (from trainer_state.json)"
has_warning = True
if has_warning:
logger.warning_once(warning_str)
def _wrap_model(self, model, training=True, dataloader=None):
if self.args.use_ipex:
dtype = torch.bfloat16 if self.use_cpu_amp else torch.float32
model = self.ipex_optimize_model(model, training, dtype=dtype)
if is_sagemaker_mp_enabled():
# Wrapping the base model twice in a DistributedModel will raise an error.
if isinstance(self.model_wrapped, smp.model.DistributedModel):
return self.model_wrapped
return smp.DistributedModel(model, backward_passes_per_step=self.args.gradient_accumulation_steps)
# train/eval could be run multiple-times - if already wrapped, don't re-wrap it again
if self.accelerator.unwrap_model(model) is not model:
return model
# Mixed precision training with apex (torch < 1.6)
if self.use_apex and training:
model, self.optimizer = amp.initialize(model, self.optimizer, opt_level=self.args.fp16_opt_level)
# Multi-gpu training (should be after apex fp16 initialization) / 8bit models does not support DDP
if self.args.n_gpu > 1 and not getattr(model, "is_loaded_in_8bit", False):
model = nn.DataParallel(model)
if self.args.jit_mode_eval:
start_time = time.time()
model = self.torch_jit_model_eval(model, dataloader, training)
self.jit_compilation_time = round(time.time() - start_time, 4)
# Note: in torch.distributed mode, there's no point in wrapping the model
# inside a DistributedDataParallel as we'll be under `no_grad` anyways.
if not training:
return model
# Distributed training (should be after apex fp16 initialization)
# Distributed training using PyTorch FSDP
if self.is_fsdp_xla_enabled:
try:
from torch_xla.distributed.fsdp import XlaFullyShardedDataParallel as FSDP
from torch_xla.distributed.fsdp import checkpoint_module
from torch_xla.distributed.fsdp.wrap import (
size_based_auto_wrap_policy,
transformer_auto_wrap_policy,
)
if self.is_fsdp_xla_v2_enabled:
from torch_xla.experimental.spmd_fully_sharded_data_parallel import (
SpmdFullyShardedDataParallel as FSDPv2,
)
except ImportError:
raise ImportError("Missing XLA FSDP related module; please make sure to use torch-xla >= 2.0.")
auto_wrap_policy = None
auto_wrapper_callable = None
default_transformer_cls_names_to_wrap = getattr(model, "_no_split_modules", None)
fsdp_transformer_layer_cls_to_wrap = self.args.fsdp_config.get(
"transformer_layer_cls_to_wrap", default_transformer_cls_names_to_wrap
)
if self.args.fsdp_config["min_num_params"] > 0:
auto_wrap_policy = functools.partial(
size_based_auto_wrap_policy, min_num_params=self.args.fsdp_config["min_num_params"]
)
elif fsdp_transformer_layer_cls_to_wrap is not None:
transformer_cls_to_wrap = set()
for layer_class in fsdp_transformer_layer_cls_to_wrap:
transformer_cls = get_module_class_from_name(model, layer_class)
if transformer_cls is None:
raise Exception("Could not find the transformer layer class to wrap in the model.")
else:
transformer_cls_to_wrap.add(transformer_cls)
auto_wrap_policy = functools.partial(
transformer_auto_wrap_policy,
# Transformer layer class to wrap
transformer_layer_cls=transformer_cls_to_wrap,
)
fsdp_kwargs = self.args.xla_fsdp_config
if self.args.fsdp_config["xla_fsdp_grad_ckpt"]:
if model.config.use_cache:
logger.warning_once(
"`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`."
)
model.config.use_cache = False
# Apply gradient checkpointing to auto-wrapped sub-modules if specified
def auto_wrapper_callable(m, *args, **kwargs):
target_cls = FSDP if not self.is_fsdp_xla_v2_enabled else FSDPv2
return target_cls(checkpoint_module(m), *args, **kwargs)
# Wrap the base model with an outer FSDP wrapper
if self.is_fsdp_xla_v2_enabled:
def shard_output(output, mesh):
from .modeling_outputs import CausalLMOutputWithPast
real_output = None
if isinstance(output, torch.Tensor):
real_output = output
elif isinstance(output, tuple):
real_output = output[0]
elif isinstance(output, CausalLMOutputWithPast):
real_output = output.logits
if real_output is None:
raise ValueError("Something went wrong, the output of the model shouldn't be `None`")
xs.mark_sharding(real_output, mesh, ("fsdp", None, None))
self.model = model = FSDPv2(
model,
shard_output=shard_output,
auto_wrap_policy=auto_wrap_policy,
auto_wrapper_callable=auto_wrapper_callable,
)
else:
self.model = model = FSDP(
model,
auto_wrap_policy=auto_wrap_policy,
auto_wrapper_callable=auto_wrapper_callable,
**fsdp_kwargs,
)
# Patch `xm.optimizer_step` should not reduce gradients in this case,
# as FSDP does not need gradient reduction over sharded parameters.
def patched_optimizer_step(optimizer, barrier=False, optimizer_args={}):
loss = optimizer.step(**optimizer_args)
if barrier:
xm.mark_step()
return loss
xm.optimizer_step = patched_optimizer_step
elif is_sagemaker_dp_enabled():
model = nn.parallel.DistributedDataParallel(
model, device_ids=[int(os.getenv("SMDATAPARALLEL_LOCAL_RANK"))]
)
elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
if is_torch_neuroncore_available():
return model
kwargs = {}
if self.args.ddp_find_unused_parameters is not None:
kwargs["find_unused_parameters"] = self.args.ddp_find_unused_parameters
elif isinstance(model, PreTrainedModel):
# find_unused_parameters breaks checkpointing as per
# https://github.com/huggingface/transformers/pull/4659#issuecomment-643356021
kwargs["find_unused_parameters"] = not model.is_gradient_checkpointing
else:
kwargs["find_unused_parameters"] = True
if self.args.ddp_bucket_cap_mb is not None:
kwargs["bucket_cap_mb"] = self.args.ddp_bucket_cap_mb
if self.args.ddp_broadcast_buffers is not None:
kwargs["broadcast_buffers"] = self.args.ddp_broadcast_buffers
self.accelerator.ddp_handler = DistributedDataParallelKwargs(**kwargs)
return model
def train(
self,
resume_from_checkpoint: Optional[Union[str, bool]] = None,
trial: Union["optuna.Trial", Dict[str, Any]] = None,
ignore_keys_for_eval: Optional[List[str]] = None,
**kwargs,
):
"""
Main training entry point.
Args:
resume_from_checkpoint (`str` or `bool`, *optional*):
If a `str`, local path to a saved checkpoint as saved by a previous instance of [`Trainer`]. If a
`bool` and equals `True`, load the last checkpoint in *args.output_dir* as saved by a previous instance
of [`Trainer`]. If present, training will resume from the model/optimizer/scheduler states loaded here.
trial (`optuna.Trial` or `Dict[str, Any]`, *optional*):
The trial run or the hyperparameter dictionary for hyperparameter search.
ignore_keys_for_eval (`List[str]`, *optional*)
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions for evaluation during the training.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments used to hide deprecated arguments
"""
if resume_from_checkpoint is False:
resume_from_checkpoint = None
# memory metrics - must set up as early as possible
self._memory_tracker.start()
args = self.args
self.is_in_train = True
# Attach NEFTune hooks if necessary
if self.neftune_noise_alpha is not None:
self.model = self._activate_neftune(self.model)
# do_train is not a reliable argument, as it might not be set and .train() still called, so
# the following is a workaround:
if (args.fp16_full_eval or args.bf16_full_eval) and not args.do_train:
self._move_model_to_device(self.model, args.device)
if "model_path" in kwargs:
resume_from_checkpoint = kwargs.pop("model_path")
warnings.warn(
"`model_path` is deprecated and will be removed in a future version. Use `resume_from_checkpoint` "
"instead.",
FutureWarning,
)
if len(kwargs) > 0:
raise TypeError(f"train() received got unexpected keyword arguments: {', '.join(list(kwargs.keys()))}.")
# This might change the seed so needs to run first.
self._hp_search_setup(trial)
self._train_batch_size = self.args.train_batch_size
# Model re-init
model_reloaded = False
if self.model_init is not None:
# Seed must be set before instantiating the model when using model_init.
enable_full_determinism(self.args.seed) if self.args.full_determinism else set_seed(self.args.seed)
self.model = self.call_model_init(trial)
model_reloaded = True
# Reinitializes optimizer and scheduler
self.optimizer, self.lr_scheduler = None, None
# Load potential model checkpoint
if isinstance(resume_from_checkpoint, bool) and resume_from_checkpoint:
resume_from_checkpoint = get_last_checkpoint(args.output_dir)
if resume_from_checkpoint is None:
raise ValueError(f"No valid checkpoint found in output directory ({args.output_dir})")
if resume_from_checkpoint is not None:
if not is_sagemaker_mp_enabled() and not self.is_deepspeed_enabled and not self.is_fsdp_enabled:
self._load_from_checkpoint(resume_from_checkpoint)
# In case of repeating the find_executable_batch_size, set `self._train_batch_size` properly
state = TrainerState.load_from_json(os.path.join(resume_from_checkpoint, TRAINER_STATE_NAME))
if state.train_batch_size is not None:
self._train_batch_size = state.train_batch_size
# If model was re-initialized, put it on the right device and update self.model_wrapped
if model_reloaded:
if self.place_model_on_device:
self._move_model_to_device(self.model, args.device)
self.model_wrapped = self.model
inner_training_loop = find_executable_batch_size(
self._inner_training_loop, self._train_batch_size, args.auto_find_batch_size
)
if args.push_to_hub:
try:
# Disable progress bars when uploading models during checkpoints to avoid polluting stdout
hf_hub_utils.disable_progress_bars()
return inner_training_loop(
args=args,
resume_from_checkpoint=resume_from_checkpoint,
trial=trial,
ignore_keys_for_eval=ignore_keys_for_eval,
)
finally:
hf_hub_utils.enable_progress_bars()
else:
return inner_training_loop(
args=args,
resume_from_checkpoint=resume_from_checkpoint,
trial=trial,
ignore_keys_for_eval=ignore_keys_for_eval,
)
def _inner_training_loop(
self, batch_size=None, args=None, resume_from_checkpoint=None, trial=None, ignore_keys_for_eval=None
):
self.accelerator.free_memory()
self._train_batch_size = batch_size
if self.args.auto_find_batch_size:
if self.state.train_batch_size != self._train_batch_size:
from accelerate.utils import release_memory
(self.model_wrapped,) = release_memory(self.model_wrapped)
self.model_wrapped = self.model
# Check for DeepSpeed *after* the intial pass and modify the config
if self.is_deepspeed_enabled:
# Temporarily unset `self.args.train_batch_size`
original_bs = self.args.per_device_train_batch_size
self.args.per_device_train_batch_size = self._train_batch_size // max(1, self.args.n_gpu)
self.propagate_args_to_deepspeed(True)
self.args.per_device_train_batch_size = original_bs
self.state.train_batch_size = self._train_batch_size
logger.debug(f"Currently training with a batch size of: {self._train_batch_size}")
# Data loader and number of training steps
train_dataloader = self.get_train_dataloader()
if self.is_fsdp_xla_v2_enabled:
train_dataloader = tpu_spmd_dataloader(train_dataloader)
# Setting up training control variables:
# number of training epochs: num_train_epochs
# number of training steps per epoch: num_update_steps_per_epoch
# total number of training steps to execute: max_steps
total_train_batch_size = self._train_batch_size * args.gradient_accumulation_steps * args.world_size
len_dataloader = None
num_train_tokens = None
if has_length(train_dataloader):
len_dataloader = len(train_dataloader)
num_update_steps_per_epoch = len_dataloader // args.gradient_accumulation_steps
num_update_steps_per_epoch = max(num_update_steps_per_epoch, 1)
num_examples = self.num_examples(train_dataloader)
if args.max_steps > 0:
max_steps = args.max_steps
num_train_epochs = args.max_steps // num_update_steps_per_epoch + int(
args.max_steps % num_update_steps_per_epoch > 0
)
# May be slightly incorrect if the last batch in the training dataloader has a smaller size but it's
# the best we can do.
num_train_samples = args.max_steps * total_train_batch_size
if args.include_tokens_per_second:
num_train_tokens = (
self.num_tokens(train_dataloader, args.max_steps) * args.gradient_accumulation_steps
)
else:
max_steps = math.ceil(args.num_train_epochs * num_update_steps_per_epoch)
num_train_epochs = math.ceil(args.num_train_epochs)
num_train_samples = self.num_examples(train_dataloader) * args.num_train_epochs
if args.include_tokens_per_second:
num_train_tokens = self.num_tokens(train_dataloader) * args.num_train_epochs
elif args.max_steps > 0: # Rely on max_steps when dataloader does not have a working size
max_steps = args.max_steps
# Setting a very large number of epochs so we go as many times as necessary over the iterator.
num_train_epochs = sys.maxsize
num_update_steps_per_epoch = max_steps
num_examples = total_train_batch_size * args.max_steps
num_train_samples = args.max_steps * total_train_batch_size
if args.include_tokens_per_second:
num_train_tokens = self.num_tokens(train_dataloader, args.max_steps) * args.gradient_accumulation_steps
else:
raise ValueError(
"args.max_steps must be set to a positive value if dataloader does not have a length, was"
f" {args.max_steps}"
)
if DebugOption.UNDERFLOW_OVERFLOW in self.args.debug:
if self.args.n_gpu > 1:
# nn.DataParallel(model) replicates the model, creating new variables and module
# references registered here no longer work on other gpus, breaking the module
raise ValueError(
"Currently --debug underflow_overflow is not supported under DP. Please use DDP"
" (torchrun or torch.distributed.launch (deprecated))."
)
else:
debug_overflow = DebugUnderflowOverflow(self.model) # noqa
delay_optimizer_creation = is_sagemaker_mp_enabled() or self.is_fsdp_xla_enabled or self.is_fsdp_enabled
# We need to reset the scheduler, as its parameters may be different on subsequent calls
if self._created_lr_scheduler:
self.lr_scheduler = None
self._created_lr_scheduler = False
if self.is_deepspeed_enabled:
self.optimizer, self.lr_scheduler = deepspeed_init(self, num_training_steps=max_steps)
if not delay_optimizer_creation:
self.create_optimizer_and_scheduler(num_training_steps=max_steps)
self.state = TrainerState(
stateful_callbacks=[
cb for cb in self.callback_handler.callbacks + [self.control] if isinstance(cb, ExportableState)
]
)
self.state.is_hyper_param_search = trial is not None
self.state.train_batch_size = self._train_batch_size
# Compute absolute values for logging, eval, and save if given as ratio
if args.logging_steps is not None:
if args.logging_steps < 1:
self.state.logging_steps = math.ceil(max_steps * args.logging_steps)
else:
self.state.logging_steps = args.logging_steps
if args.eval_steps is not None:
if args.eval_steps < 1:
self.state.eval_steps = math.ceil(max_steps * args.eval_steps)
else:
self.state.eval_steps = args.eval_steps
if args.save_steps is not None:
if args.save_steps < 1:
self.state.save_steps = math.ceil(max_steps * args.save_steps)
else:
self.state.save_steps = args.save_steps
# Activate gradient checkpointing if needed
if args.gradient_checkpointing:
if args.gradient_checkpointing_kwargs is None:
gradient_checkpointing_kwargs = {}
else:
gradient_checkpointing_kwargs = args.gradient_checkpointing_kwargs
self.model.gradient_checkpointing_enable(gradient_checkpointing_kwargs=gradient_checkpointing_kwargs)
model = self._wrap_model(self.model_wrapped)
# as the model is wrapped, don't use `accelerator.prepare`
# this is for unhandled cases such as
# FSDP-XLA, SageMaker MP/DP, DataParallel, IPEX
use_accelerator_prepare = True if model is self.model else False
if delay_optimizer_creation:
if use_accelerator_prepare:
self._fsdp_qlora_plugin_updates()
self.model = self.accelerator.prepare(self.model)
self.create_optimizer_and_scheduler(num_training_steps=max_steps)
# prepare using `accelerator` prepare
if use_accelerator_prepare:
self.model.train()
if hasattr(self.lr_scheduler, "step"):
if self.use_apex:
model = self.accelerator.prepare(self.model)
else:
model, self.optimizer = self.accelerator.prepare(self.model, self.optimizer)
else:
# to handle cases wherein we pass "DummyScheduler" such as when it is specified in DeepSpeed config.
model, self.optimizer, self.lr_scheduler = self.accelerator.prepare(
self.model, self.optimizer, self.lr_scheduler
)
if self.is_fsdp_enabled:
self.model = self.model_wrapped = model
# for the rest of this function `model` is the outside model, whether it was wrapped or not
if model is not self.model:
self.model_wrapped = model
# backward compatibility
if self.is_deepspeed_enabled:
self.deepspeed = self.model_wrapped
# ckpt loading
if resume_from_checkpoint is not None:
if self.is_deepspeed_enabled:
deepspeed_load_checkpoint(
self.model_wrapped, resume_from_checkpoint, load_module_strict=not _is_peft_model(self.model)
)
elif is_sagemaker_mp_enabled() or self.is_fsdp_enabled:
self._load_from_checkpoint(resume_from_checkpoint, self.model_wrapped)
# Check if saved optimizer or scheduler states exist
self._load_optimizer_and_scheduler(resume_from_checkpoint)
# important: at this point:
# self.model is the Transformers Model
# self.model_wrapped is DDP(Transformers Model), Deepspeed(Transformers Model),
# FSDP(Transformers Model), Dynamo Optimized Module(Transformers Model) etc.
# Train!
logger.info("***** Running training *****")
logger.info(f" Num examples = {num_examples:,}")
logger.info(f" Num Epochs = {num_train_epochs:,}")
logger.info(f" Instantaneous batch size per device = {self.args.per_device_train_batch_size:,}")
if self.args.per_device_train_batch_size != self._train_batch_size:
logger.info(f" Training with DataParallel so batch size has been adjusted to: {self._train_batch_size:,}")
logger.info(f" Total train batch size (w. parallel, distributed & accumulation) = {total_train_batch_size:,}")
logger.info(f" Gradient Accumulation steps = {args.gradient_accumulation_steps}")
logger.info(f" Total optimization steps = {max_steps:,}")
logger.info(f" Number of trainable parameters = {get_model_param_count(model, trainable_only=True):,}")
self.state.epoch = 0
start_time = time.time()
epochs_trained = 0
steps_trained_in_current_epoch = 0
steps_trained_progress_bar = None
# Check if continuing training from a checkpoint
if resume_from_checkpoint is not None and os.path.isfile(
os.path.join(resume_from_checkpoint, TRAINER_STATE_NAME)
):
self.state = TrainerState.load_from_json(os.path.join(resume_from_checkpoint, TRAINER_STATE_NAME))
self.compare_trainer_and_checkpoint_args(self.args, self.state)
self._load_callback_state()
epochs_trained = self.state.global_step // num_update_steps_per_epoch
if not args.ignore_data_skip:
steps_trained_in_current_epoch = self.state.global_step % (num_update_steps_per_epoch)
steps_trained_in_current_epoch *= args.gradient_accumulation_steps
else:
steps_trained_in_current_epoch = 0
logger.info(" Continuing training from checkpoint, will skip to saved global_step")
logger.info(f" Continuing training from epoch {epochs_trained}")
logger.info(f" Continuing training from global step {self.state.global_step}")
if not args.ignore_data_skip:
logger.info(
f" Will skip the first {epochs_trained} epochs then the first"
f" {steps_trained_in_current_epoch} batches in the first epoch."
)
# Update the references
self.callback_handler.model = self.model
self.callback_handler.optimizer = self.optimizer
self.callback_handler.lr_scheduler = self.lr_scheduler
self.callback_handler.train_dataloader = train_dataloader
if self.hp_name is not None and self._trial is not None:
# use self._trial because the SigOpt/Optuna hpo only call `_hp_search_setup(trial)` instead of passing trial
# parameter to Train when using DDP.
self.state.trial_name = self.hp_name(self._trial)
if trial is not None:
assignments = trial.assignments if self.hp_search_backend == HPSearchBackend.SIGOPT else trial
self.state.trial_params = hp_params(assignments)
else:
self.state.trial_params = None
# This should be the same if the state has been saved but in case the training arguments changed, it's safer
# to set this after the load.
self.state.max_steps = max_steps
self.state.num_train_epochs = num_train_epochs
self.state.is_local_process_zero = self.is_local_process_zero()
self.state.is_world_process_zero = self.is_world_process_zero()
# tr_loss is a tensor to avoid synchronization of TPUs through .item()
tr_loss = torch.tensor(0.0).to(args.device)
# _total_loss_scalar is updated everytime .item() has to be called on tr_loss and stores the sum of all losses
self._total_loss_scalar = 0.0
self._globalstep_last_logged = self.state.global_step
model.zero_grad()
grad_norm: Optional[float] = None
self.control = self.callback_handler.on_train_begin(args, self.state, self.control)
total_batched_samples = 0
for epoch in range(epochs_trained, num_train_epochs):
epoch_iterator = train_dataloader
if hasattr(epoch_iterator, "set_epoch"):
epoch_iterator.set_epoch(epoch)
# Reset the past mems state at the beginning of each epoch if necessary.
if args.past_index >= 0:
self._past = None
steps_in_epoch = (
len(epoch_iterator)
if len_dataloader is not None
else args.max_steps * args.gradient_accumulation_steps
)
self.control = self.callback_handler.on_epoch_begin(args, self.state, self.control)
if epoch == epochs_trained and resume_from_checkpoint is not None and steps_trained_in_current_epoch == 0:
self._load_rng_state(resume_from_checkpoint)
rng_to_sync = False
steps_skipped = 0
if steps_trained_in_current_epoch > 0:
epoch_iterator = skip_first_batches(epoch_iterator, steps_trained_in_current_epoch)
steps_skipped = steps_trained_in_current_epoch
steps_trained_in_current_epoch = 0
rng_to_sync = True
step = -1
for step, inputs in enumerate(epoch_iterator):
total_batched_samples += 1
if self.args.include_num_input_tokens_seen:
main_input_name = getattr(self.model, "main_input_name", "input_ids")
if main_input_name not in inputs:
logger.warning(
"Tried to track the number of tokens seen, however the current model is "
"not configured properly to know what item is the input. To fix this, add "
"a `main_input_name` attribute to the model class you are using."
)
else:
input_device = inputs[main_input_name].device
self.state.num_input_tokens_seen += torch.sum(
self.accelerator.gather(
torch.tensor(inputs[main_input_name].numel(), device=input_device, dtype=torch.int64)
)
).item()
if rng_to_sync:
self._load_rng_state(resume_from_checkpoint)
rng_to_sync = False
# Skip past any already trained steps if resuming training
if steps_trained_in_current_epoch > 0:
steps_trained_in_current_epoch -= 1
if steps_trained_progress_bar is not None:
steps_trained_progress_bar.update(1)
if steps_trained_in_current_epoch == 0:
self._load_rng_state(resume_from_checkpoint)
continue
elif steps_trained_progress_bar is not None:
steps_trained_progress_bar.close()
steps_trained_progress_bar = None
if step % args.gradient_accumulation_steps == 0:
self.control = self.callback_handler.on_step_begin(args, self.state, self.control)
with self.accelerator.accumulate(model):
tr_loss_step = self.training_step(model, inputs)
if (
args.logging_nan_inf_filter
and not is_torch_xla_available()
and (torch.isnan(tr_loss_step) or torch.isinf(tr_loss_step))
):
# if loss is nan or inf simply add the average of previous logged losses
tr_loss += tr_loss / (1 + self.state.global_step - self._globalstep_last_logged)
else:
if tr_loss.device != tr_loss_step.device:
raise ValueError(
f"Calculated loss must be on the original device: {tr_loss.device} but device in use is {tr_loss_step.device}"
)
tr_loss += tr_loss_step
self.current_flos += float(self.floating_point_ops(inputs))
is_last_step_and_steps_less_than_grad_acc = (
steps_in_epoch <= args.gradient_accumulation_steps and (step + 1) == steps_in_epoch
)
if (
total_batched_samples % args.gradient_accumulation_steps == 0
or
# last step in epoch but step is always smaller than gradient_accumulation_steps
is_last_step_and_steps_less_than_grad_acc
):
# the `or` condition of `is_last_step_and_steps_less_than_grad_acc` is not covered
# in accelerate. So, explicitly enable sync gradients to True in that case.
if is_last_step_and_steps_less_than_grad_acc:
self.accelerator.gradient_state._set_sync_gradients(True)
# Gradient clipping
if args.max_grad_norm is not None and args.max_grad_norm > 0:
# deepspeed does its own clipping
if is_sagemaker_mp_enabled() and args.fp16:
_grad_norm = self.optimizer.clip_master_grads(args.max_grad_norm)
elif self.use_apex:
# Revert to normal clipping otherwise, handling Apex or full precision
_grad_norm = nn.utils.clip_grad_norm_(
amp.master_params(self.optimizer),
args.max_grad_norm,
)
else:
_grad_norm = self.accelerator.clip_grad_norm_(
model.parameters(),
args.max_grad_norm,
)
if (
is_accelerate_available()
and self.accelerator.distributed_type == DistributedType.DEEPSPEED
):
grad_norm = model.get_global_grad_norm()
# In some cases the grad norm may not return a float
if hasattr(grad_norm, "item"):
grad_norm = grad_norm.item()
else:
grad_norm = _grad_norm
# Optimizer step
self.optimizer.step()
optimizer_was_run = not self.accelerator.optimizer_step_was_skipped
if optimizer_was_run:
# Delay optimizer scheduling until metrics are generated
if not isinstance(self.lr_scheduler, torch.optim.lr_scheduler.ReduceLROnPlateau):
self.lr_scheduler.step()
model.zero_grad()
self.state.global_step += 1
self.state.epoch = epoch + (step + 1 + steps_skipped) / steps_in_epoch
self.control = self.callback_handler.on_step_end(args, self.state, self.control)
self._maybe_log_save_evaluate(tr_loss, grad_norm, model, trial, epoch, ignore_keys_for_eval)
else:
self.control = self.callback_handler.on_substep_end(args, self.state, self.control)
if self.control.should_epoch_stop or self.control.should_training_stop:
# PyTorch/XLA relies on the data loader to insert the mark_step for
# each step. Since we are breaking the loop early, we need to manually
# insert the mark_step here.
if is_torch_xla_available():
xm.mark_step()
break
if step < 0:
logger.warning(
"There seems to be not a single sample in your epoch_iterator, stopping training at step"
f" {self.state.global_step}! This is expected if you're using an IterableDataset and set"
f" num_steps ({max_steps}) higher than the number of available samples."
)
self.control.should_training_stop = True
self.control = self.callback_handler.on_epoch_end(args, self.state, self.control)
self._maybe_log_save_evaluate(tr_loss, grad_norm, model, trial, epoch, ignore_keys_for_eval)
if DebugOption.TPU_METRICS_DEBUG in self.args.debug:
if is_torch_xla_available():
# tpu-comment: Logging debug metrics for PyTorch/XLA (compile, execute times, ops, etc.)
xm.master_print(met.metrics_report())
else:
logger.warning(
"You enabled PyTorch/XLA debug metrics but you don't have a TPU "
"configured. Check your training configuration if this is unexpected."
)
if self.control.should_training_stop:
break
if args.past_index and hasattr(self, "_past"):
# Clean the state at the end of training
delattr(self, "_past")
logger.info("\n\nTraining completed. Do not forget to share your model on huggingface.co/models =)\n\n")
if args.load_best_model_at_end and self.state.best_model_checkpoint is not None:
# Wait for everyone to get here so we are sure the model has been saved by process 0.
if is_torch_xla_available():
xm.rendezvous("load_best_model_at_end")
elif args.parallel_mode == ParallelMode.DISTRIBUTED:
dist.barrier()
elif is_sagemaker_mp_enabled():
smp.barrier()
self._load_best_model()
# add remaining tr_loss
self._total_loss_scalar += tr_loss.item()
effective_global_step = max(self.state.global_step, 0.001) # Avoid ZeroDivisionError
train_loss = self._total_loss_scalar / effective_global_step
metrics = speed_metrics(
"train",
start_time,
num_samples=num_train_samples,
num_steps=self.state.max_steps,
num_tokens=num_train_tokens,
)
self.store_flos()
metrics["total_flos"] = self.state.total_flos
metrics["train_loss"] = train_loss
self.is_in_train = False
self._memory_tracker.stop_and_update_metrics(metrics)
self.log(metrics)
run_dir = self._get_output_dir(trial)
checkpoints_sorted = self._sorted_checkpoints(use_mtime=False, output_dir=run_dir)
# Delete the last checkpoint when save_total_limit=1 if it's different from the best checkpoint and process allowed to save.
if self.args.should_save and self.state.best_model_checkpoint is not None and self.args.save_total_limit == 1:
for checkpoint in checkpoints_sorted:
if not os.path.samefile(checkpoint, self.state.best_model_checkpoint):
logger.info(f"Deleting older checkpoint [{checkpoint}] due to args.save_total_limit")
shutil.rmtree(checkpoint)
self.control = self.callback_handler.on_train_end(args, self.state, self.control)
# Wait for the checkpoint to be uploaded.
self._finish_current_push()
# After training we make sure to retrieve back the original forward pass method
# for the embedding layer by removing the forward post hook.
if self.neftune_noise_alpha is not None:
self._deactivate_neftune(self.model)
return TrainOutput(self.state.global_step, train_loss, metrics)
def _get_output_dir(self, trial):
if self.hp_search_backend is not None and trial is not None:
if self.hp_search_backend == HPSearchBackend.OPTUNA:
run_id = trial.number
elif self.hp_search_backend == HPSearchBackend.RAY:
import ray.train
run_id = ray.train.get_context().get_trial_id()
elif self.hp_search_backend == HPSearchBackend.SIGOPT:
run_id = trial.id
elif self.hp_search_backend == HPSearchBackend.WANDB:
import wandb
run_id = wandb.run.id
run_name = self.hp_name(trial) if self.hp_name is not None else f"run-{run_id}"
run_dir = os.path.join(self.args.output_dir, run_name)
else:
run_dir = self.args.output_dir
return run_dir
def _load_from_checkpoint(self, resume_from_checkpoint, model=None):
if model is None:
model = self.model
config_file = os.path.join(resume_from_checkpoint, CONFIG_NAME)
adapter_weights_file = os.path.join(resume_from_checkpoint, ADAPTER_WEIGHTS_NAME)
adapter_safe_weights_file = os.path.join(resume_from_checkpoint, ADAPTER_SAFE_WEIGHTS_NAME)
weights_file = os.path.join(resume_from_checkpoint, WEIGHTS_NAME)
weights_index_file = os.path.join(resume_from_checkpoint, WEIGHTS_INDEX_NAME)
safe_weights_file = os.path.join(resume_from_checkpoint, SAFE_WEIGHTS_NAME)
safe_weights_index_file = os.path.join(resume_from_checkpoint, SAFE_WEIGHTS_INDEX_NAME)
is_fsdp_ckpt = os.path.isdir(resume_from_checkpoint) and (
# this checks the FSDP state dict when `SHARDED_STATE_DICT` is used
any(
FSDP_MODEL_NAME in folder_name
for folder_name in os.listdir(resume_from_checkpoint)
if os.path.isdir(os.path.join(resume_from_checkpoint, folder_name))
)
# this checks the FSDP state dict when `FULL_STATE_DICT` is used
or os.path.isfile(os.path.join(resume_from_checkpoint, f"{FSDP_MODEL_NAME}.bin"))
)
if is_fsdp_ckpt and not self.is_fsdp_enabled:
raise ValueError(f"Checkpoint found at {resume_from_checkpoint} is only supported when using PyTorch FSDP")
if not (
any(
os.path.isfile(f)
for f in [
weights_file,
safe_weights_file,
weights_index_file,
safe_weights_index_file,
adapter_weights_file,
adapter_safe_weights_file,
]
)
or is_fsdp_ckpt
):
raise ValueError(f"Can't find a valid checkpoint at {resume_from_checkpoint}")
logger.info(f"Loading model from {resume_from_checkpoint}.")
if os.path.isfile(config_file):
config = PretrainedConfig.from_json_file(config_file)
checkpoint_version = config.transformers_version
if checkpoint_version is not None and checkpoint_version != __version__:
logger.warning(
f"You are resuming training from a checkpoint trained with {checkpoint_version} of "
f"Transformers but your current version is {__version__}. This is not recommended and could "
"yield to errors or unwanted behaviors."
)
if os.path.isfile(weights_file) or os.path.isfile(safe_weights_file) or is_fsdp_ckpt:
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
# If the model is on the GPU, it still works!
if is_sagemaker_mp_enabled():
if os.path.isfile(os.path.join(resume_from_checkpoint, "user_content.pt")):
# If the 'user_content.pt' file exists, load with the new smp api.
# Checkpoint must have been saved with the new smp api.
smp.resume_from_checkpoint(
path=resume_from_checkpoint, tag=WEIGHTS_NAME, partial=False, load_optimizer=False
)
else:
# If the 'user_content.pt' file does NOT exist, load with the old smp api.
# Checkpoint must have been saved with the old smp api.
if hasattr(self.args, "fp16") and self.args.fp16 is True:
logger.warning(
"Enabling FP16 and loading from smp < 1.10 checkpoint together is not suppported."
)
state_dict = torch.load(
weights_file,
map_location="cpu",
**weights_only_kwarg,
)
# Required for smp to not auto-translate state_dict from hf to smp (is already smp).
state_dict["_smp_is_partial"] = False
load_result = model.load_state_dict(state_dict, strict=True)
# release memory
del state_dict
elif self.is_fsdp_enabled:
load_fsdp_model(
self.accelerator.state.fsdp_plugin,
self.accelerator,
model,
resume_from_checkpoint,
**_get_fsdp_ckpt_kwargs(),
)
else:
# We load the model state dict on the CPU to avoid an OOM error.
if self.args.save_safetensors and os.path.isfile(safe_weights_file):
state_dict = safetensors.torch.load_file(safe_weights_file, device="cpu")
else:
state_dict = torch.load(
weights_file,
map_location="cpu",
**weights_only_kwarg,
)
# workaround for FSDP bug https://github.com/pytorch/pytorch/issues/82963
# which takes *args instead of **kwargs
load_result = model.load_state_dict(state_dict, False)
# release memory
del state_dict
self._issue_warnings_after_load(load_result)
# Load adapters following PR # 24096
elif _is_peft_model(model):
# If train a model using PEFT & LoRA, assume that adapter have been saved properly.
if hasattr(model, "active_adapter") and hasattr(model, "load_adapter"):
if os.path.exists(resume_from_checkpoint):
model.load_adapter(resume_from_checkpoint, model.active_adapter, is_trainable=True)
else:
logger.warning(
"The intermediate checkpoints of PEFT may not be saved correctly, "
f"consider using a custom callback to save {ADAPTER_WEIGHTS_NAME} in corresponding saving folders. "
"Check some examples here: https://github.com/huggingface/peft/issues/96"
)
else:
logger.warning("Could not load adapter model, make sure to have `peft>=0.3.0` installed")
else:
# We load the sharded checkpoint
load_result = load_sharded_checkpoint(
model, resume_from_checkpoint, strict=is_sagemaker_mp_enabled(), prefer_safe=self.args.save_safetensors
)
if not is_sagemaker_mp_enabled():
self._issue_warnings_after_load(load_result)
def _load_best_model(self):
logger.info(f"Loading best model from {self.state.best_model_checkpoint} (score: {self.state.best_metric}).")
best_model_path = os.path.join(self.state.best_model_checkpoint, WEIGHTS_NAME)
best_safe_model_path = os.path.join(self.state.best_model_checkpoint, SAFE_WEIGHTS_NAME)
best_adapter_model_path = os.path.join(self.state.best_model_checkpoint, ADAPTER_WEIGHTS_NAME)
best_safe_adapter_model_path = os.path.join(self.state.best_model_checkpoint, ADAPTER_SAFE_WEIGHTS_NAME)
model = self.model_wrapped if is_sagemaker_mp_enabled() else self.model
if self.is_deepspeed_enabled:
deepspeed_load_checkpoint(
self.model_wrapped,
self.state.best_model_checkpoint,
load_module_strict=not _is_peft_model(self.model),
)
elif self.is_fsdp_enabled:
load_result = load_fsdp_model(
self.accelerator.state.fsdp_plugin,
self.accelerator,
model,
self.state.best_model_checkpoint,
**_get_fsdp_ckpt_kwargs(),
)
elif (
os.path.exists(best_model_path)
or os.path.exists(best_safe_model_path)
or os.path.exists(best_adapter_model_path)
or os.path.exists(best_safe_adapter_model_path)
):
has_been_loaded = True
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
if is_sagemaker_mp_enabled():
if os.path.isfile(os.path.join(self.state.best_model_checkpoint, "user_content.pt")):
# If the 'user_content.pt' file exists, load with the new smp api.
# Checkpoint must have been saved with the new smp api.
smp.resume_from_checkpoint(
path=self.state.best_model_checkpoint,
tag=WEIGHTS_NAME,
partial=False,
load_optimizer=False,
)
else:
# If the 'user_content.pt' file does NOT exist, load with the old smp api.
# Checkpoint must have been saved with the old smp api.
if self.args.save_safetensors and os.path.isfile(best_safe_model_path):
state_dict = safetensors.torch.load_file(best_safe_model_path, device="cpu")
else:
state_dict = torch.load(
best_model_path,
map_location="cpu",
**weights_only_kwarg,
)
state_dict["_smp_is_partial"] = False
load_result = model.load_state_dict(state_dict, strict=True)
else:
if _is_peft_model(model):
# If train a model using PEFT & LoRA, assume that adapter have been saved properly.
if hasattr(model, "active_adapter") and hasattr(model, "load_adapter"):
if os.path.exists(best_adapter_model_path) or os.path.exists(best_safe_adapter_model_path):
model.load_adapter(self.state.best_model_checkpoint, model.active_adapter)
# Load_adapter has no return value present, modify it when appropriate.
from torch.nn.modules.module import _IncompatibleKeys
load_result = _IncompatibleKeys([], [])
else:
logger.warning(
"The intermediate checkpoints of PEFT may not be saved correctly, "
f"consider using a custom callback to save {ADAPTER_WEIGHTS_NAME} in corresponding saving folders. "
"Check some examples here: https://github.com/huggingface/peft/issues/96"
)
has_been_loaded = False
else:
logger.warning("Could not load adapter model, make sure to have `peft>=0.3.0` installed")
has_been_loaded = False
else:
# We load the model state dict on the CPU to avoid an OOM error.
if self.args.save_safetensors and os.path.isfile(best_safe_model_path):
state_dict = safetensors.torch.load_file(best_safe_model_path, device="cpu")
else:
state_dict = torch.load(
best_model_path,
map_location="cpu",
**weights_only_kwarg,
)
# If the model is on the GPU, it still works!
# workaround for FSDP bug https://github.com/pytorch/pytorch/issues/82963
# which takes *args instead of **kwargs
load_result = model.load_state_dict(state_dict, False)
if not is_sagemaker_mp_enabled() and has_been_loaded:
self._issue_warnings_after_load(load_result)
elif os.path.exists(os.path.join(self.state.best_model_checkpoint, SAFE_WEIGHTS_INDEX_NAME)) or os.path.exists(
os.path.join(self.state.best_model_checkpoint, WEIGHTS_INDEX_NAME)
):
load_result = load_sharded_checkpoint(
model, self.state.best_model_checkpoint, strict=is_sagemaker_mp_enabled()
)
if not is_sagemaker_mp_enabled():
self._issue_warnings_after_load(load_result)
else:
logger.warning(
f"Could not locate the best model at {best_model_path}, if you are running a distributed training "
"on multiple nodes, you should activate `--save_on_each_node`."
)
def _issue_warnings_after_load(self, load_result):
if len(load_result.missing_keys) != 0:
if self.model._keys_to_ignore_on_save is not None and set(load_result.missing_keys) == set(
self.model._keys_to_ignore_on_save
):
self.model.tie_weights()
else:
logger.warning(f"There were missing keys in the checkpoint model loaded: {load_result.missing_keys}.")
if len(load_result.unexpected_keys) != 0:
logger.warning(
f"There were unexpected keys in the checkpoint model loaded: {load_result.unexpected_keys}."
)
def _maybe_log_save_evaluate(self, tr_loss, grad_norm, model, trial, epoch, ignore_keys_for_eval):
if self.control.should_log and self.state.global_step > self._globalstep_last_logged:
if is_torch_xla_available():
xm.mark_step()
logs: Dict[str, float] = {}
# all_gather + mean() to get average loss over all processes
tr_loss_scalar = self._nested_gather(tr_loss).mean().item()
# reset tr_loss to zero
tr_loss -= tr_loss
logs["loss"] = round(tr_loss_scalar / (self.state.global_step - self._globalstep_last_logged), 4)
if grad_norm is not None:
logs["grad_norm"] = grad_norm.detach().item() if isinstance(grad_norm, torch.Tensor) else grad_norm
logs["learning_rate"] = self._get_learning_rate()
self._total_loss_scalar += tr_loss_scalar
self._globalstep_last_logged = self.state.global_step
self.store_flos()
self.log(logs)
metrics = None
if self.control.should_evaluate:
metrics = self.evaluate(ignore_keys=ignore_keys_for_eval)
self._report_to_hp_search(trial, self.state.global_step, metrics)
# Run delayed LR scheduler now that metrics are populated
if isinstance(self.lr_scheduler, torch.optim.lr_scheduler.ReduceLROnPlateau):
metric_to_check = self.args.metric_for_best_model
if not metric_to_check.startswith("eval_"):
metric_to_check = f"eval_{metric_to_check}"
self.lr_scheduler.step(metrics[metric_to_check])
if self.control.should_save:
self._save_checkpoint(model, trial, metrics=metrics)
self.control = self.callback_handler.on_save(self.args, self.state, self.control)
def _load_rng_state(self, checkpoint):
# Load RNG states from `checkpoint`
if checkpoint is None:
return
if self.args.world_size > 1:
process_index = self.args.process_index
rng_file = os.path.join(checkpoint, f"rng_state_{process_index}.pth")
if not os.path.isfile(rng_file):
logger.info(
f"Didn't find an RNG file for process {process_index}, if you are resuming a training that "
"wasn't launched in a distributed fashion, reproducibility is not guaranteed."
)
return
else:
rng_file = os.path.join(checkpoint, "rng_state.pth")
if not os.path.isfile(rng_file):
logger.info(
"Didn't find an RNG file, if you are resuming a training that was launched in a distributed "
"fashion, reproducibility is not guaranteed."
)
return
checkpoint_rng_state = torch.load(rng_file)
random.setstate(checkpoint_rng_state["python"])
np.random.set_state(checkpoint_rng_state["numpy"])
torch.random.set_rng_state(checkpoint_rng_state["cpu"])
if torch.cuda.is_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
torch.cuda.random.set_rng_state_all(checkpoint_rng_state["cuda"])
else:
try:
torch.cuda.random.set_rng_state(checkpoint_rng_state["cuda"])
except Exception as e:
logger.info(
f"Didn't manage to set back the RNG states of the GPU because of the following error:\n {e}"
"\nThis won't yield the same results as if the training had not been interrupted."
)
if is_torch_xla_available():
xm.set_rng_state(checkpoint_rng_state["xla"])
if is_torch_npu_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
torch.npu.random.set_rng_state_all(checkpoint_rng_state["npu"])
else:
try:
torch.npu.random.set_rng_state(checkpoint_rng_state["npu"])
except Exception as e:
logger.info(
f"Didn't manage to set back the RNG states of the NPU because of the following error:\n {e}"
"\nThis won't yield the same results as if the training had not been interrupted."
)
if is_torch_mlu_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
torch.mlu.random.set_rng_state_all(checkpoint_rng_state["mlu"])
else:
try:
torch.mlu.random.set_rng_state(checkpoint_rng_state["mlu"])
except Exception as e:
logger.info(
f"Didn't manage to set back the RNG states of the MLU because of the following error:\n {e}"
"\nThis won't yield the same results as if the training had not been interrupted."
)
def _save_checkpoint(self, model, trial, metrics=None):
# In all cases, including ddp/dp/deepspeed, self.model is always a reference to the model we
# want to save except FullyShardedDDP.
# assert unwrap_model(model) is self.model, "internal model should be a reference to self.model"
# Save model checkpoint
checkpoint_folder = f"{PREFIX_CHECKPOINT_DIR}-{self.state.global_step}"
if self.hp_search_backend is None and trial is None:
self.store_flos()
run_dir = self._get_output_dir(trial=trial)
output_dir = os.path.join(run_dir, checkpoint_folder)
self.save_model(output_dir, _internal_call=True)
if not self.args.save_only_model:
# Save optimizer and scheduler
self._save_optimizer_and_scheduler(output_dir)
# Save RNG state
self._save_rng_state(output_dir)
# Determine the new best metric / best model checkpoint
if metrics is not None and self.args.metric_for_best_model is not None:
metric_to_check = self.args.metric_for_best_model
if not metric_to_check.startswith("eval_"):
metric_to_check = f"eval_{metric_to_check}"
metric_value = metrics[metric_to_check]
operator = np.greater if self.args.greater_is_better else np.less
if (
self.state.best_metric is None
or self.state.best_model_checkpoint is None
or operator(metric_value, self.state.best_metric)
):
self.state.best_metric = metric_value
self.state.best_model_checkpoint = output_dir
# Save the Trainer state
if self.args.should_save:
# Update the `TrainerControl` state to where we are currently
self.state.stateful_callbacks["TrainerControl"] = self.control.state()
self.state.save_to_json(os.path.join(output_dir, TRAINER_STATE_NAME))
if self.args.push_to_hub:
self._push_from_checkpoint(output_dir)
# Maybe delete some older checkpoints.
if self.args.should_save:
# Solely rely on numerical checkpoint id for rotation.
# mtime is not reliable especially on some fuse fs in cloud environments.
self._rotate_checkpoints(use_mtime=False, output_dir=run_dir)
def _save_rng_state(self, output_dir):
# Save RNG state in non-distributed training
rng_states = {
"python": random.getstate(),
"numpy": np.random.get_state(),
"cpu": torch.random.get_rng_state(),
}
if torch.cuda.is_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
# In non distributed, we save the global CUDA RNG state (will take care of DataParallel)
rng_states["cuda"] = torch.cuda.random.get_rng_state_all()
else:
rng_states["cuda"] = torch.cuda.random.get_rng_state()
if is_torch_xla_available():
rng_states["xla"] = xm.get_rng_state()
if is_torch_npu_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
rng_states["npu"] = torch.npu.random.get_rng_state_all()
else:
rng_states["npu"] = torch.npu.random.get_rng_state()
if is_torch_mlu_available():
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
rng_states["mlu"] = torch.mlu.random.get_rng_state_all()
else:
rng_states["mlu"] = torch.mlu.random.get_rng_state()
# A process can arrive here before the process 0 has a chance to save the model, in which case output_dir may
# not yet exist.
os.makedirs(output_dir, exist_ok=True)
if self.args.world_size <= 1:
torch.save(rng_states, os.path.join(output_dir, "rng_state.pth"))
else:
torch.save(rng_states, os.path.join(output_dir, f"rng_state_{self.args.process_index}.pth"))
def _save_optimizer_and_scheduler(self, output_dir):
if is_torch_xla_available():
xm.rendezvous("saving_optimizer_states")
xm.save(self.optimizer.state_dict(), os.path.join(output_dir, OPTIMIZER_NAME))
with warnings.catch_warnings(record=True) as caught_warnings:
xm.save(self.lr_scheduler.state_dict(), os.path.join(output_dir, SCHEDULER_NAME))
reissue_pt_warnings(caught_warnings)
elif is_sagemaker_mp_enabled():
opt_state_dict = self.optimizer.local_state_dict(gather_if_shard=False)
smp.barrier()
if smp.rdp_rank() == 0 or smp.state.cfg.shard_optimizer_state:
smp.save(
opt_state_dict,
os.path.join(output_dir, OPTIMIZER_NAME),
partial=True,
v3=smp.state.cfg.shard_optimizer_state,
)
elif self.is_deepspeed_enabled:
# under zero3 model file itself doesn't get saved since it's bogus! Unless deepspeed
# config `stage3_gather_16bit_weights_on_model_save` is True
accept_exclude_frozen_parameters = "exclude_frozen_parameters" in set(
inspect.signature(self.model_wrapped.save_checkpoint).parameters.keys()
)
if accept_exclude_frozen_parameters and _is_peft_model(self.model):
self.model_wrapped.save_checkpoint(output_dir, exclude_frozen_parameters=True)
else:
self.model_wrapped.save_checkpoint(output_dir)
elif self.is_fsdp_enabled:
# save fsdp specific ckpt for resuming from ckpt
save_fsdp_model(
self.accelerator.state.fsdp_plugin, self.accelerator, self.model, output_dir, **_get_fsdp_ckpt_kwargs()
)
save_fsdp_optimizer(
self.accelerator.state.fsdp_plugin, self.accelerator, self.optimizer, self.model, output_dir
)
elif self.args.should_save:
# deepspeed.save_checkpoint above saves model/optim/sched
torch.save(self.optimizer.state_dict(), os.path.join(output_dir, OPTIMIZER_NAME))
# Save SCHEDULER & SCALER
is_deepspeed_custom_scheduler = self.is_deepspeed_enabled and not isinstance(
self.lr_scheduler, DeepSpeedSchedulerWrapper
)
if (
self.args.should_save
and (not self.is_deepspeed_enabled or is_deepspeed_custom_scheduler)
and not is_torch_xla_available()
):
with warnings.catch_warnings(record=True) as caught_warnings:
torch.save(self.lr_scheduler.state_dict(), os.path.join(output_dir, SCHEDULER_NAME))
reissue_pt_warnings(caught_warnings)
def _load_optimizer_and_scheduler(self, checkpoint):
"""If optimizer and scheduler states exist, load them."""
if checkpoint is None:
return
if self.is_deepspeed_enabled:
# deepspeed loads optimizer/lr_scheduler together with the model in deepspeed_init
if not isinstance(self.lr_scheduler, DeepSpeedSchedulerWrapper):
with warnings.catch_warnings(record=True) as caught_warnings:
self.lr_scheduler.load_state_dict(torch.load(os.path.join(checkpoint, SCHEDULER_NAME)))
reissue_pt_warnings(caught_warnings)
return
checkpoint_file_exists = (
glob.glob(os.path.join(checkpoint, OPTIMIZER_NAME) + "_*")
if is_sagemaker_mp_enabled()
else (
os.path.isfile(os.path.join(checkpoint, OPTIMIZER_NAME))
or os.path.isfile(os.path.join(checkpoint, OPTIMIZER_NAME_BIN))
or (
os.path.isdir(checkpoint)
and any(
OPTIMIZER_NAME_BIN.split(".")[0] in folder_name
for folder_name in os.listdir(checkpoint)
if os.path.isdir(os.path.join(checkpoint, folder_name))
)
)
)
)
if checkpoint_file_exists and os.path.isfile(os.path.join(checkpoint, SCHEDULER_NAME)):
# Load in optimizer and scheduler states
if is_torch_xla_available():
# On TPU we have to take some extra precautions to properly load the states on the right device.
optimizer_state = torch.load(os.path.join(checkpoint, OPTIMIZER_NAME), map_location="cpu")
with warnings.catch_warnings(record=True) as caught_warnings:
lr_scheduler_state = torch.load(os.path.join(checkpoint, SCHEDULER_NAME), map_location="cpu")
reissue_pt_warnings(caught_warnings)
xm.send_cpu_data_to_device(optimizer_state, self.args.device)
xm.send_cpu_data_to_device(lr_scheduler_state, self.args.device)
self.optimizer.load_state_dict(optimizer_state)
self.lr_scheduler.load_state_dict(lr_scheduler_state)
else:
if is_sagemaker_mp_enabled():
if os.path.isfile(os.path.join(checkpoint, "user_content.pt")):
# Optimizer checkpoint was saved with smp >= 1.10
def opt_load_hook(mod, opt):
opt.load_state_dict(smp.load(os.path.join(checkpoint, OPTIMIZER_NAME), partial=True))
else:
# Optimizer checkpoint was saved with smp < 1.10
def opt_load_hook(mod, opt):
if IS_SAGEMAKER_MP_POST_1_10:
opt.load_state_dict(
smp.load(os.path.join(checkpoint, OPTIMIZER_NAME), partial=True, back_compat=True)
)
else:
opt.load_state_dict(smp.load(os.path.join(checkpoint, OPTIMIZER_NAME), partial=True))
self.model_wrapped.register_post_step_hook(opt_load_hook)
else:
# We use the CPU when training on one GPU to avoid OOM for GPU RAM when training big models.
# In distributed training however, we load directly on each GPU and risk the GPU OOM as it's more
# likely to get OOM on CPU (since we load num_gpu times the optimizer state
map_location = self.args.device if self.args.world_size > 1 else "cpu"
if self.is_fsdp_enabled:
load_fsdp_optimizer(
self.accelerator.state.fsdp_plugin,
self.accelerator,
self.optimizer,
self.model,
checkpoint,
**_get_fsdp_ckpt_kwargs(),
)
else:
self.optimizer.load_state_dict(
torch.load(os.path.join(checkpoint, OPTIMIZER_NAME), map_location=map_location)
)
with warnings.catch_warnings(record=True) as caught_warnings:
self.lr_scheduler.load_state_dict(torch.load(os.path.join(checkpoint, SCHEDULER_NAME)))
reissue_pt_warnings(caught_warnings)
def _load_callback_state(self):
"""If callback states exist and were passed in, restore their states if enabled"""
if not self.args.restore_callback_states_from_checkpoint:
return
# Callback states are stored in stateful_callbacks
not_found = []
new_callbacks = []
original_callbacks = self.callback_handler.callbacks + [self.control]
for stored_callback, data in self.state.stateful_callbacks.items():
if not isinstance(data, list):
data = [data]
if any(callback.__class__.__name__ == stored_callback for callback in original_callbacks):
# We can load/restore from multiple callbacks of the same type.
duplicates = [
callback for callback in original_callbacks if callback.__class__.__name__ == stored_callback
]
for callback, callback_data in zip(duplicates, data):
args = callback_data.get("args", {})
attributes = callback_data.get("attributes", {})
new_callback = type(callback)(**args)
for attribute, value in attributes.items():
setattr(new_callback, attribute, value)
if isinstance(callback, TrainerControl):
# Specifically for restoring the `control` state
self.control = new_callback
else:
new_callbacks.append(new_callback)
# We remove the existing callback and add it to the list of new callbacks
self.callback_handler.remove_callback(type(new_callback))
logger.info("Continuing training from checkpoint, restoring any callbacks that were passed in")
else:
not_found.append(stored_callback)
if len(not_found) > 0:
logger.warning(
f"Checkpoint included callbacks not included in current configuration. Ignoring. ({', '.join(not_found)})"
)
for callback in new_callbacks:
self.callback_handler.add_callback(callback)
def hyperparameter_search(
self,
hp_space: Optional[Callable[["optuna.Trial"], Dict[str, float]]] = None,
compute_objective: Optional[Callable[[Dict[str, float]], float]] = None,
n_trials: int = 20,
direction: Union[str, List[str]] = "minimize",
backend: Optional[Union["str", HPSearchBackend]] = None,
hp_name: Optional[Callable[["optuna.Trial"], str]] = None,
**kwargs,
) -> Union[BestRun, List[BestRun]]:
"""
Launch an hyperparameter search using `optuna` or `Ray Tune` or `SigOpt`. The optimized quantity is determined
by `compute_objective`, which defaults to a function returning the evaluation loss when no metric is provided,
the sum of all metrics otherwise.
<Tip warning={true}>
To use this method, you need to have provided a `model_init` when initializing your [`Trainer`]: we need to
reinitialize the model at each new run. This is incompatible with the `optimizers` argument, so you need to
subclass [`Trainer`] and override the method [`~Trainer.create_optimizer_and_scheduler`] for custom
optimizer/scheduler.
</Tip>
Args:
hp_space (`Callable[["optuna.Trial"], Dict[str, float]]`, *optional*):
A function that defines the hyperparameter search space. Will default to
[`~trainer_utils.default_hp_space_optuna`] or [`~trainer_utils.default_hp_space_ray`] or
[`~trainer_utils.default_hp_space_sigopt`] depending on your backend.
compute_objective (`Callable[[Dict[str, float]], float]`, *optional*):
A function computing the objective to minimize or maximize from the metrics returned by the `evaluate`
method. Will default to [`~trainer_utils.default_compute_objective`].
n_trials (`int`, *optional*, defaults to 100):
The number of trial runs to test.
direction (`str` or `List[str]`, *optional*, defaults to `"minimize"`):
If it's single objective optimization, direction is `str`, can be `"minimize"` or `"maximize"`, you
should pick `"minimize"` when optimizing the validation loss, `"maximize"` when optimizing one or
several metrics. If it's multi objectives optimization, direction is `List[str]`, can be List of
`"minimize"` and `"maximize"`, you should pick `"minimize"` when optimizing the validation loss,
`"maximize"` when optimizing one or several metrics.
backend (`str` or [`~training_utils.HPSearchBackend`], *optional*):
The backend to use for hyperparameter search. Will default to optuna or Ray Tune or SigOpt, depending
on which one is installed. If all are installed, will default to optuna.
hp_name (`Callable[["optuna.Trial"], str]]`, *optional*):
A function that defines the trial/run name. Will default to None.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to `optuna.create_study` or `ray.tune.run`. For more
information see:
- the documentation of
[optuna.create_study](https://optuna.readthedocs.io/en/stable/reference/generated/optuna.study.create_study.html)
- the documentation of [tune.run](https://docs.ray.io/en/latest/tune/api_docs/execution.html#tune-run)
- the documentation of [sigopt](https://app.sigopt.com/docs/endpoints/experiments/create)
Returns:
[`trainer_utils.BestRun` or `List[trainer_utils.BestRun]`]: All the information about the best run or best
runs for multi-objective optimization. Experiment summary can be found in `run_summary` attribute for Ray
backend.
"""
if backend is None:
backend = default_hp_search_backend()
backend = HPSearchBackend(backend)
backend_obj = ALL_HYPERPARAMETER_SEARCH_BACKENDS[backend]()
backend_obj.ensure_available()
self.hp_search_backend = backend
if self.model_init is None:
raise RuntimeError(
"To use hyperparameter search, you need to pass your model through a model_init function."
)
self.hp_space = backend_obj.default_hp_space if hp_space is None else hp_space
self.hp_name = hp_name
self.compute_objective = default_compute_objective if compute_objective is None else compute_objective
best_run = backend_obj.run(self, n_trials, direction, **kwargs)
self.hp_search_backend = None
return best_run
def log(self, logs: Dict[str, float]) -> None:
"""
Log `logs` on the various objects watching training.
Subclass and override this method to inject custom behavior.
Args:
logs (`Dict[str, float]`):
The values to log.
"""
if self.state.epoch is not None:
logs["epoch"] = self.state.epoch
if self.args.include_num_input_tokens_seen:
logs["num_input_tokens_seen"] = self.state.num_input_tokens_seen
output = {**logs, **{"step": self.state.global_step}}
self.state.log_history.append(output)
self.control = self.callback_handler.on_log(self.args, self.state, self.control, logs)
def _prepare_input(self, data: Union[torch.Tensor, Any]) -> Union[torch.Tensor, Any]:
"""
Prepares one `data` before feeding it to the model, be it a tensor or a nested list/dictionary of tensors.
"""
if isinstance(data, Mapping):
return type(data)({k: self._prepare_input(v) for k, v in data.items()})
elif isinstance(data, (tuple, list)):
return type(data)(self._prepare_input(v) for v in data)
elif isinstance(data, torch.Tensor):
kwargs = {"device": self.args.device}
if self.is_deepspeed_enabled and (torch.is_floating_point(data) or torch.is_complex(data)):
# NLP models inputs are int/uint and those get adjusted to the right dtype of the
# embedding. Other models such as wav2vec2's inputs are already float and thus
# may need special handling to match the dtypes of the model
kwargs.update({"dtype": self.accelerator.state.deepspeed_plugin.hf_ds_config.dtype()})
return data.to(**kwargs)
return data
def _prepare_inputs(self, inputs: Dict[str, Union[torch.Tensor, Any]]) -> Dict[str, Union[torch.Tensor, Any]]:
"""
Prepare `inputs` before feeding them to the model, converting them to tensors if they are not already and
handling potential state.
"""
inputs = self._prepare_input(inputs)
if len(inputs) == 0:
raise ValueError(
"The batch received was empty, your model won't be able to train on it. Double-check that your "
f"training dataset contains keys expected by the model: {','.join(self._signature_columns)}."
)
if self.args.past_index >= 0 and self._past is not None:
inputs["mems"] = self._past
return inputs
def compute_loss_context_manager(self):
"""
A helper wrapper to group together context managers.
"""
return self.autocast_smart_context_manager()
def autocast_smart_context_manager(self, cache_enabled: Optional[bool] = True):
"""
A helper wrapper that creates an appropriate context manager for `autocast` while feeding it the desired
arguments, depending on the situation.
"""
if self.use_cpu_amp:
ctx_manager = torch.cpu.amp.autocast(cache_enabled=cache_enabled, dtype=self.amp_dtype)
else:
ctx_manager = contextlib.nullcontext()
return ctx_manager
def training_step(self, model: nn.Module, inputs: Dict[str, Union[torch.Tensor, Any]]) -> torch.Tensor:
"""
Perform a training step on a batch of inputs.
Subclass and override to inject custom behavior.
Args:
model (`nn.Module`):
The model to train.
inputs (`Dict[str, Union[torch.Tensor, Any]]`):
The inputs and targets of the model.
The dictionary will be unpacked before being fed to the model. Most models expect the targets under the
argument `labels`. Check your model's documentation for all accepted arguments.
Return:
`torch.Tensor`: The tensor with training loss on this batch.
"""
model.train()
inputs = self._prepare_inputs(inputs)
if is_sagemaker_mp_enabled():
loss_mb = smp_forward_backward(model, inputs, self.args.gradient_accumulation_steps)
return loss_mb.reduce_mean().detach().to(self.args.device)
with self.compute_loss_context_manager():
loss = self.compute_loss(model, inputs)
if self.args.n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu parallel training
if self.use_apex:
with amp.scale_loss(loss, self.optimizer) as scaled_loss:
scaled_loss.backward()
else:
self.accelerator.backward(loss)
return loss.detach() / self.args.gradient_accumulation_steps
def compute_loss(self, model, inputs, return_outputs=False):
"""
How the loss is computed by Trainer. By default, all models return the loss in the first element.
Subclass and override for custom behavior.
"""
if self.label_smoother is not None and "labels" in inputs:
labels = inputs.pop("labels")
else:
labels = None
outputs = model(**inputs)
# Save past state if it exists
# TODO: this needs to be fixed and made cleaner later.
if self.args.past_index >= 0:
self._past = outputs[self.args.past_index]
if labels is not None:
unwrapped_model = self.accelerator.unwrap_model(model)
if _is_peft_model(unwrapped_model):
model_name = unwrapped_model.base_model.model._get_name()
else:
model_name = unwrapped_model._get_name()
if model_name in MODEL_FOR_CAUSAL_LM_MAPPING_NAMES.values():
loss = self.label_smoother(outputs, labels, shift_labels=True)
else:
loss = self.label_smoother(outputs, labels)
else:
if isinstance(outputs, dict) and "loss" not in outputs:
raise ValueError(
"The model did not return a loss from the inputs, only the following keys: "
f"{','.join(outputs.keys())}. For reference, the inputs it received are {','.join(inputs.keys())}."
)
# We don't use .loss here since the model may return tuples instead of ModelOutput.
loss = outputs["loss"] if isinstance(outputs, dict) else outputs[0]
return (loss, outputs) if return_outputs else loss
def is_local_process_zero(self) -> bool:
"""
Whether or not this process is the local (e.g., on one machine if training in a distributed fashion on several
machines) main process.
"""
return self.args.local_process_index == 0
def is_world_process_zero(self) -> bool:
"""
Whether or not this process is the global main process (when training in a distributed fashion on several
machines, this is only going to be `True` for one process).
"""
# Special case for SageMaker ModelParallel since there process_index is dp_process_index, not the global
# process index.
if is_sagemaker_mp_enabled():
return smp.rank() == 0
else:
return self.args.process_index == 0
def save_model(self, output_dir: Optional[str] = None, _internal_call: bool = False):
"""
Will save the model, so you can reload it using `from_pretrained()`.
Will only save from the main process.
"""
if output_dir is None:
output_dir = self.args.output_dir
if is_torch_xla_available():
self._save_tpu(output_dir)
elif is_sagemaker_mp_enabled():
# Calling the state_dict needs to be done on the wrapped model and on all processes.
os.makedirs(output_dir, exist_ok=True)
state_dict = self.model_wrapped.state_dict()
if self.args.should_save:
self._save(output_dir, state_dict=state_dict)
if IS_SAGEMAKER_MP_POST_1_10:
# 'user_content.pt' indicates model state_dict saved with smp >= 1.10
Path(os.path.join(output_dir, "user_content.pt")).touch()
elif self.is_fsdp_enabled:
if ("FULL_STATE_DICT" in str(self.accelerator.state.fsdp_plugin.state_dict_type)) and (
version.parse(accelerate_version) > version.parse("0.24.1")
):
state_dict = self.accelerator.get_state_dict(self.model)
if self.args.should_save:
self._save(output_dir, state_dict=state_dict)
elif self.is_deepspeed_enabled:
try:
state_dict = self.accelerator.get_state_dict(self.deepspeed)
if self.args.should_save:
self._save(output_dir, state_dict=state_dict)
except ValueError:
logger.warning(
" stage3_gather_16bit_weights_on_model_save=false. Saving the full checkpoint instead, use"
" zero_to_fp32.py to recover weights"
)
if self.args.should_save:
self._save(output_dir, state_dict={})
# remove the dummy state_dict
remove_dummy_checkpoint(self.args.should_save, output_dir, [WEIGHTS_NAME, SAFE_WEIGHTS_NAME])
self.model_wrapped.save_checkpoint(output_dir)
elif self.args.should_save:
self._save(output_dir)
# Push to the Hub when `save_model` is called by the user.
if self.args.push_to_hub and not _internal_call:
self.push_to_hub(commit_message="Model save")
def _save_tpu(self, output_dir: Optional[str] = None):
output_dir = output_dir if output_dir is not None else self.args.output_dir
logger.info(f"Saving model checkpoint to {output_dir}")
model = self.model
xm.mark_step()
if self.args.save_safetensors:
model.to("cpu")
if xm.is_master_ordinal():
os.makedirs(output_dir, exist_ok=True)
torch.save(self.args, os.path.join(output_dir, TRAINING_ARGS_NAME))
# Save a trained model and configuration using `save_pretrained()`.
# They can then be reloaded using `from_pretrained()`
supported_classes = (PushToHubMixin,)
xm.rendezvous("saving_checkpoint")
if not isinstance(model, supported_classes):
if isinstance(self.accelerator.unwrap_model(model), supported_classes):
self.accelerator.unwrap_model(model).save_pretrained(
output_dir,
is_main_process=self.args.should_save,
state_dict=model.state_dict(),
save_function=xm.save,
safe_serialization=self.args.save_safetensors,
)
else:
logger.info("Trainer.model is not a `PreTrainedModel`, only saving its state dict.")
state_dict = model.state_dict()
xm.save(state_dict, os.path.join(output_dir, WEIGHTS_NAME))
else:
model.save_pretrained(
output_dir,
is_main_process=self.args.should_save,
save_function=xm.save,
safe_serialization=self.args.save_safetensors,
)
if self.tokenizer is not None and self.args.should_save:
self.tokenizer.save_pretrained(output_dir)
# We moved the model from TPU -> CPU for saving the weights.
# Now we should move it back to subsequent compute still works.
if self.args.save_safetensors:
model.to(self.args.device)
def _save(self, output_dir: Optional[str] = None, state_dict=None):
# If we are executing this function, we are the process zero, so we don't check for that.
output_dir = output_dir if output_dir is not None else self.args.output_dir
os.makedirs(output_dir, exist_ok=True)
logger.info(f"Saving model checkpoint to {output_dir}")
supported_classes = (PreTrainedModel,) if not is_peft_available() else (PreTrainedModel, PeftModel)
# Save a trained model and configuration using `save_pretrained()`.
# They can then be reloaded using `from_pretrained()`
if not isinstance(self.model, supported_classes):
if state_dict is None:
state_dict = self.model.state_dict()
if isinstance(self.accelerator.unwrap_model(self.model), supported_classes):
self.accelerator.unwrap_model(self.model).save_pretrained(
output_dir, state_dict=state_dict, safe_serialization=self.args.save_safetensors
)
else:
logger.info("Trainer.model is not a `PreTrainedModel`, only saving its state dict.")
if self.args.save_safetensors:
safetensors.torch.save_file(
state_dict, os.path.join(output_dir, SAFE_WEIGHTS_NAME), metadata={"format": "pt"}
)
else:
torch.save(state_dict, os.path.join(output_dir, WEIGHTS_NAME))
else:
self.model.save_pretrained(
output_dir, state_dict=state_dict, safe_serialization=self.args.save_safetensors
)
if self.tokenizer is not None:
self.tokenizer.save_pretrained(output_dir)
# Good practice: save your training arguments together with the trained model
torch.save(self.args, os.path.join(output_dir, TRAINING_ARGS_NAME))
def store_flos(self):
# Storing the number of floating-point operations that went into the model
if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
self.state.total_flos += (
distributed_broadcast_scalars([self.current_flos], device=self.args.device).sum().item()
)
self.current_flos = 0
else:
self.state.total_flos += self.current_flos
self.current_flos = 0
def _sorted_checkpoints(
self, output_dir=None, checkpoint_prefix=PREFIX_CHECKPOINT_DIR, use_mtime=False
) -> List[str]:
ordering_and_checkpoint_path = []
glob_checkpoints = [str(x) for x in Path(output_dir).glob(f"{checkpoint_prefix}-*") if os.path.isdir(x)]
for path in glob_checkpoints:
if use_mtime:
ordering_and_checkpoint_path.append((os.path.getmtime(path), path))
else:
regex_match = re.match(f".*{checkpoint_prefix}-([0-9]+)", path)
if regex_match is not None and regex_match.groups() is not None:
ordering_and_checkpoint_path.append((int(regex_match.groups()[0]), path))
checkpoints_sorted = sorted(ordering_and_checkpoint_path)
checkpoints_sorted = [checkpoint[1] for checkpoint in checkpoints_sorted]
# Make sure we don't delete the best model.
if (
self.state.best_model_checkpoint is not None
and str(Path(self.state.best_model_checkpoint)) in checkpoints_sorted
):
best_model_index = checkpoints_sorted.index(str(Path(self.state.best_model_checkpoint)))
for i in range(best_model_index, len(checkpoints_sorted) - 2):
checkpoints_sorted[i], checkpoints_sorted[i + 1] = checkpoints_sorted[i + 1], checkpoints_sorted[i]
return checkpoints_sorted
def _rotate_checkpoints(self, use_mtime=False, output_dir=None) -> None:
if self.args.save_total_limit is None or self.args.save_total_limit <= 0:
return
# Check if we should delete older checkpoint(s)
checkpoints_sorted = self._sorted_checkpoints(use_mtime=use_mtime, output_dir=output_dir)
if len(checkpoints_sorted) <= self.args.save_total_limit:
return
# If save_total_limit=1 with load_best_model_at_end=True, we could end up deleting the last checkpoint, which
# we don't do to allow resuming.
save_total_limit = self.args.save_total_limit
if (
self.state.best_model_checkpoint is not None
and self.args.save_total_limit == 1
and checkpoints_sorted[-1] != self.state.best_model_checkpoint
):
save_total_limit = 2
number_of_checkpoints_to_delete = max(0, len(checkpoints_sorted) - save_total_limit)
checkpoints_to_be_deleted = checkpoints_sorted[:number_of_checkpoints_to_delete]
for checkpoint in checkpoints_to_be_deleted:
logger.info(f"Deleting older checkpoint [{checkpoint}] due to args.save_total_limit")
shutil.rmtree(checkpoint, ignore_errors=True)
def evaluate(
self,
eval_dataset: Optional[Union[Dataset, Dict[str, Dataset]]] = None,
ignore_keys: Optional[List[str]] = None,
metric_key_prefix: str = "eval",
) -> Dict[str, float]:
"""
Run evaluation and returns metrics.
The calling script will be responsible for providing a method to compute metrics, as they are task-dependent
(pass it to the init `compute_metrics` argument).
You can also subclass and override this method to inject custom behavior.
Args:
eval_dataset (Union[`Dataset`, Dict[str, `Dataset`]), *optional*):
Pass a dataset if you wish to override `self.eval_dataset`. If it is a [`~datasets.Dataset`], columns
not accepted by the `model.forward()` method are automatically removed. If it is a dictionary, it will
evaluate on each dataset, prepending the dictionary key to the metric name. Datasets must implement the
`__len__` method.
<Tip>
If you pass a dictionary with names of datasets as keys and datasets as values, evaluate will run
separate evaluations on each dataset. This can be useful to monitor how training affects other
datasets or simply to get a more fine-grained evaluation.
When used with `load_best_model_at_end`, make sure `metric_for_best_model` references exactly one
of the datasets. If you, for example, pass in `{"data1": data1, "data2": data2}` for two datasets
`data1` and `data2`, you could specify `metric_for_best_model="eval_data1_loss"` for using the
loss on `data1` and `metric_for_best_model="eval_data1_loss"` for the loss on `data2`.
</Tip>
ignore_keys (`List[str]`, *optional*):
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions.
metric_key_prefix (`str`, *optional*, defaults to `"eval"`):
An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
"eval_bleu" if the prefix is "eval" (default)
Returns:
A dictionary containing the evaluation loss and the potential metrics computed from the predictions. The
dictionary also contains the epoch number which comes from the training state.
"""
# handle multipe eval datasets
eval_dataset = eval_dataset if eval_dataset is not None else self.eval_dataset
if isinstance(eval_dataset, dict):
metrics = {}
for eval_dataset_name, _eval_dataset in eval_dataset.items():
dataset_metrics = self.evaluate(
eval_dataset=_eval_dataset,
ignore_keys=ignore_keys,
metric_key_prefix=f"{metric_key_prefix}_{eval_dataset_name}",
)
metrics.update(dataset_metrics)
return metrics
# memory metrics - must set up as early as possible
self._memory_tracker.start()
eval_dataloader = self.get_eval_dataloader(eval_dataset)
if self.is_fsdp_xla_v2_enabled:
eval_dataloader = tpu_spmd_dataloader(eval_dataloader)
start_time = time.time()
eval_loop = self.prediction_loop if self.args.use_legacy_prediction_loop else self.evaluation_loop
output = eval_loop(
eval_dataloader,
description="Evaluation",
# No point gathering the predictions if there are no metrics, otherwise we defer to
# self.args.prediction_loss_only
prediction_loss_only=True if self.compute_metrics is None else None,
ignore_keys=ignore_keys,
metric_key_prefix=metric_key_prefix,
)
total_batch_size = self.args.eval_batch_size * self.args.world_size
if f"{metric_key_prefix}_jit_compilation_time" in output.metrics:
start_time += output.metrics[f"{metric_key_prefix}_jit_compilation_time"]
output.metrics.update(
speed_metrics(
metric_key_prefix,
start_time,
num_samples=output.num_samples,
num_steps=math.ceil(output.num_samples / total_batch_size),
)
)
self.log(output.metrics)
if DebugOption.TPU_METRICS_DEBUG in self.args.debug:
# tpu-comment: Logging debug metrics for PyTorch/XLA (compile, execute times, ops, etc.)
xm.master_print(met.metrics_report())
self.control = self.callback_handler.on_evaluate(self.args, self.state, self.control, output.metrics)
self._memory_tracker.stop_and_update_metrics(output.metrics)
return output.metrics
def predict(
self, test_dataset: Dataset, ignore_keys: Optional[List[str]] = None, metric_key_prefix: str = "test"
) -> PredictionOutput:
"""
Run prediction and returns predictions and potential metrics.
Depending on the dataset and your use case, your test dataset may contain labels. In that case, this method
will also return metrics, like in `evaluate()`.
Args:
test_dataset (`Dataset`):
Dataset to run the predictions on. If it is an `datasets.Dataset`, columns not accepted by the
`model.forward()` method are automatically removed. Has to implement the method `__len__`
ignore_keys (`List[str]`, *optional*):
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions.
metric_key_prefix (`str`, *optional*, defaults to `"test"`):
An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
"test_bleu" if the prefix is "test" (default)
<Tip>
If your predictions or labels have different sequence length (for instance because you're doing dynamic padding
in a token classification task) the predictions will be padded (on the right) to allow for concatenation into
one array. The padding index is -100.
</Tip>
Returns: *NamedTuple* A namedtuple with the following keys:
- predictions (`np.ndarray`): The predictions on `test_dataset`.
- label_ids (`np.ndarray`, *optional*): The labels (if the dataset contained some).
- metrics (`Dict[str, float]`, *optional*): The potential dictionary of metrics (if the dataset contained
labels).
"""
# memory metrics - must set up as early as possible
self._memory_tracker.start()
test_dataloader = self.get_test_dataloader(test_dataset)
start_time = time.time()
eval_loop = self.prediction_loop if self.args.use_legacy_prediction_loop else self.evaluation_loop
output = eval_loop(
test_dataloader, description="Prediction", ignore_keys=ignore_keys, metric_key_prefix=metric_key_prefix
)
total_batch_size = self.args.eval_batch_size * self.args.world_size
if f"{metric_key_prefix}_jit_compilation_time" in output.metrics:
start_time += output.metrics[f"{metric_key_prefix}_jit_compilation_time"]
output.metrics.update(
speed_metrics(
metric_key_prefix,
start_time,
num_samples=output.num_samples,
num_steps=math.ceil(output.num_samples / total_batch_size),
)
)
self.control = self.callback_handler.on_predict(self.args, self.state, self.control, output.metrics)
self._memory_tracker.stop_and_update_metrics(output.metrics)
return PredictionOutput(predictions=output.predictions, label_ids=output.label_ids, metrics=output.metrics)
def evaluation_loop(
self,
dataloader: DataLoader,
description: str,
prediction_loss_only: Optional[bool] = None,
ignore_keys: Optional[List[str]] = None,
metric_key_prefix: str = "eval",
) -> EvalLoopOutput:
"""
Prediction/evaluation loop, shared by `Trainer.evaluate()` and `Trainer.predict()`.
Works both with or without labels.
"""
args = self.args
prediction_loss_only = prediction_loss_only if prediction_loss_only is not None else args.prediction_loss_only
# if eval is called w/o train, handle model prep here
if self.is_deepspeed_enabled and self.deepspeed is None:
_, _ = deepspeed_init(self, num_training_steps=0, inference=True)
model = self._wrap_model(self.model, training=False, dataloader=dataloader)
if len(self.accelerator._models) == 0 and model is self.model:
model = (
self.accelerator.prepare(model)
if self.is_deepspeed_enabled
else self.accelerator.prepare_model(model, evaluation_mode=True)
)
if self.is_fsdp_enabled:
self.model = model
# for the rest of this function `model` is the outside model, whether it was wrapped or not
if model is not self.model:
self.model_wrapped = model
# backward compatibility
if self.is_deepspeed_enabled:
self.deepspeed = self.model_wrapped
# if full fp16 or bf16 eval is wanted and this ``evaluation`` or ``predict`` isn't called
# while ``train`` is running, cast it to the right dtype first and then put on device
if not self.is_in_train:
if args.fp16_full_eval:
model = model.to(dtype=torch.float16, device=args.device)
elif args.bf16_full_eval:
model = model.to(dtype=torch.bfloat16, device=args.device)
batch_size = self.args.eval_batch_size
logger.info(f"***** Running {description} *****")
if has_length(dataloader):
logger.info(f" Num examples = {self.num_examples(dataloader)}")
else:
logger.info(" Num examples: Unknown")
logger.info(f" Batch size = {batch_size}")
model.eval()
self.callback_handler.eval_dataloader = dataloader
# Do this before wrapping.
eval_dataset = getattr(dataloader, "dataset", None)
if args.past_index >= 0:
self._past = None
# Initialize containers
all_losses = EvalLoopContainer(self.args.eval_do_concat_batches, padding_index=-100)
all_preds = EvalLoopContainer(self.args.eval_do_concat_batches, padding_index=-100)
all_labels = EvalLoopContainer(self.args.eval_do_concat_batches, padding_index=-100)
all_inputs = EvalLoopContainer(self.args.eval_do_concat_batches, padding_index=-100)
# Will be useful when we have an iterable dataset so don't know its length.
observed_num_examples = 0
# Main evaluation loop
for step, inputs in enumerate(dataloader):
# Update the observed num examples
observed_batch_size = find_batch_size(inputs)
if observed_batch_size is not None:
observed_num_examples += observed_batch_size
# For batch samplers, batch_size is not known by the dataloader in advance.
if batch_size is None:
batch_size = observed_batch_size
# Prediction step
loss, logits, labels = self.prediction_step(model, inputs, prediction_loss_only, ignore_keys=ignore_keys)
main_input_name = getattr(self.model, "main_input_name", "input_ids")
inputs_decode = self._prepare_input(inputs[main_input_name]) if args.include_inputs_for_metrics else None
if is_torch_xla_available():
xm.mark_step()
# Update containers
if loss is not None:
losses = self.gather_function((loss.repeat(batch_size)))
all_losses.add(losses)
if inputs_decode is not None:
inputs_decode = self.accelerator.pad_across_processes(inputs_decode, dim=1, pad_index=-100)
inputs_decode = self.gather_function((inputs_decode))
all_inputs.add(inputs_decode)
if logits is not None:
logits = self.accelerator.pad_across_processes(logits, dim=1, pad_index=-100)
if self.preprocess_logits_for_metrics is not None:
logits = self.preprocess_logits_for_metrics(logits, labels)
logits = self.gather_function((logits))
all_preds.add(logits)
if labels is not None:
labels = self.accelerator.pad_across_processes(labels, dim=1, pad_index=-100)
labels = self.gather_function((labels))
all_labels.add(labels)
self.control = self.callback_handler.on_prediction_step(args, self.state, self.control)
# Gather all tensors and put them back on the CPU if we have done enough accumulation steps.
if args.eval_accumulation_steps is not None and (step + 1) % args.eval_accumulation_steps == 0:
all_losses.to_cpu_and_numpy()
all_preds.to_cpu_and_numpy()
all_labels.to_cpu_and_numpy()
all_inputs.to_cpu_and_numpy()
# After all calls to `.gather_function`, reset to `gather_for_metrics`:
self.gather_function = self.accelerator.gather_for_metrics
if args.past_index and hasattr(self, "_past"):
# Clean the state at the end of the evaluation loop
delattr(self, "_past")
# Gather all remaining tensors and put them back on the CPU
all_losses = all_losses.get_arrays()
all_preds = all_preds.get_arrays()
all_labels = all_labels.get_arrays()
all_inputs = all_inputs.get_arrays()
# Number of samples
if has_length(eval_dataset):
num_samples = len(eval_dataset)
# The instance check is weird and does not actually check for the type, but whether the dataset has the right
# methods. Therefore we need to make sure it also has the attribute.
elif isinstance(eval_dataset, IterableDatasetShard) and getattr(eval_dataset, "num_examples", 0) > 0:
num_samples = eval_dataset.num_examples
else:
if has_length(dataloader):
num_samples = self.num_examples(dataloader)
else: # both len(dataloader.dataset) and len(dataloader) fail
num_samples = observed_num_examples
if num_samples == 0 and observed_num_examples > 0:
num_samples = observed_num_examples
# Metrics!
if self.compute_metrics is not None and all_preds is not None and all_labels is not None:
if args.include_inputs_for_metrics:
metrics = self.compute_metrics(
EvalPrediction(predictions=all_preds, label_ids=all_labels, inputs=all_inputs)
)
else:
metrics = self.compute_metrics(EvalPrediction(predictions=all_preds, label_ids=all_labels))
else:
metrics = {}
# To be JSON-serializable, we need to remove numpy types or zero-d tensors
metrics = denumpify_detensorize(metrics)
if isinstance(all_losses, list) and all_losses:
metrics[f"{metric_key_prefix}_loss"] = np.concatenate(all_losses).mean().item()
elif isinstance(all_losses, np.ndarray):
metrics[f"{metric_key_prefix}_loss"] = all_losses.mean().item()
if hasattr(self, "jit_compilation_time"):
metrics[f"{metric_key_prefix}_jit_compilation_time"] = self.jit_compilation_time
# Prefix all keys with metric_key_prefix + '_'
for key in list(metrics.keys()):
if not key.startswith(f"{metric_key_prefix}_"):
metrics[f"{metric_key_prefix}_{key}"] = metrics.pop(key)
return EvalLoopOutput(predictions=all_preds, label_ids=all_labels, metrics=metrics, num_samples=num_samples)
def _nested_gather(self, tensors, name=None):
"""
Gather value of `tensors` (tensor or list/tuple of nested tensors) and convert them to numpy before
concatenating them to `gathered`
"""
if tensors is None:
return
if is_torch_xla_available():
if name is None:
name = "nested_gather"
tensors = nested_xla_mesh_reduce(tensors, name)
elif is_sagemaker_mp_enabled():
tensors = smp_gather(tensors)
elif (self.args.distributed_state is not None and self.args.distributed_state.distributed_type != "NO") or (
self.args.distributed_state is None and self.args.local_rank != -1
):
tensors = distributed_concat(tensors)
return tensors
def prediction_step(
self,
model: nn.Module,
inputs: Dict[str, Union[torch.Tensor, Any]],
prediction_loss_only: bool,
ignore_keys: Optional[List[str]] = None,
) -> Tuple[Optional[torch.Tensor], Optional[torch.Tensor], Optional[torch.Tensor]]:
"""
Perform an evaluation step on `model` using `inputs`.
Subclass and override to inject custom behavior.
Args:
model (`nn.Module`):
The model to evaluate.
inputs (`Dict[str, Union[torch.Tensor, Any]]`):
The inputs and targets of the model.
The dictionary will be unpacked before being fed to the model. Most models expect the targets under the
argument `labels`. Check your model's documentation for all accepted arguments.
prediction_loss_only (`bool`):
Whether or not to return the loss only.
ignore_keys (`List[str]`, *optional*):
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions.
Return:
Tuple[Optional[torch.Tensor], Optional[torch.Tensor], Optional[torch.Tensor]]: A tuple with the loss,
logits and labels (each being optional).
"""
has_labels = False if len(self.label_names) == 0 else all(inputs.get(k) is not None for k in self.label_names)
# For CLIP-like models capable of returning loss values.
# If `return_loss` is not specified or being `None` in `inputs`, we check if the default value of `return_loss`
# is `True` in `model.forward`.
return_loss = inputs.get("return_loss", None)
if return_loss is None:
return_loss = self.can_return_loss
loss_without_labels = True if len(self.label_names) == 0 and return_loss else False
inputs = self._prepare_inputs(inputs)
if ignore_keys is None:
if hasattr(self.model, "config"):
ignore_keys = getattr(self.model.config, "keys_to_ignore_at_inference", [])
else:
ignore_keys = []
# labels may be popped when computing the loss (label smoothing for instance) so we grab them first.
if has_labels or loss_without_labels:
labels = nested_detach(tuple(inputs.get(name) for name in self.label_names))
if len(labels) == 1:
labels = labels[0]
else:
labels = None
with torch.no_grad():
if is_sagemaker_mp_enabled():
raw_outputs = smp_forward_only(model, inputs)
if has_labels or loss_without_labels:
if isinstance(raw_outputs, dict):
loss_mb = raw_outputs["loss"]
logits_mb = tuple(v for k, v in raw_outputs.items() if k not in ignore_keys + ["loss"])
else:
loss_mb = raw_outputs[0]
logits_mb = raw_outputs[1:]
loss = loss_mb.reduce_mean().detach().cpu()
logits = smp_nested_concat(logits_mb)
else:
loss = None
if isinstance(raw_outputs, dict):
logits_mb = tuple(v for k, v in raw_outputs.items() if k not in ignore_keys)
else:
logits_mb = raw_outputs
logits = smp_nested_concat(logits_mb)
else:
if has_labels or loss_without_labels:
with self.compute_loss_context_manager():
loss, outputs = self.compute_loss(model, inputs, return_outputs=True)
loss = loss.mean().detach()
if isinstance(outputs, dict):
logits = tuple(v for k, v in outputs.items() if k not in ignore_keys + ["loss"])
else:
logits = outputs[1:]
else:
loss = None
with self.compute_loss_context_manager():
outputs = model(**inputs)
if isinstance(outputs, dict):
logits = tuple(v for k, v in outputs.items() if k not in ignore_keys)
else:
logits = outputs
# TODO: this needs to be fixed and made cleaner later.
if self.args.past_index >= 0:
self._past = outputs[self.args.past_index - 1]
if prediction_loss_only:
return (loss, None, None)
logits = nested_detach(logits)
if len(logits) == 1:
logits = logits[0]
return (loss, logits, labels)
def floating_point_ops(self, inputs: Dict[str, Union[torch.Tensor, Any]]):
"""
For models that inherit from [`PreTrainedModel`], uses that method to compute the number of floating point
operations for every backward + forward pass. If using another model, either implement such a method in the
model or subclass and override this method.
Args:
inputs (`Dict[str, Union[torch.Tensor, Any]]`):
The inputs and targets of the model.
Returns:
`int`: The number of floating-point operations.
"""
if hasattr(self.model, "floating_point_ops"):
return self.model.floating_point_ops(inputs)
else:
return 0
def init_hf_repo(self, token: Optional[str] = None):
"""
Initializes a git repo in `self.args.hub_model_id`.
"""
# Only on process zero
if not self.is_world_process_zero():
return
if self.args.hub_model_id is None:
repo_name = Path(self.args.output_dir).absolute().name
else:
repo_name = self.args.hub_model_id
token = token if token is not None else self.args.hub_token
repo_url = create_repo(repo_name, token=token, private=self.args.hub_private_repo, exist_ok=True)
self.hub_model_id = repo_url.repo_id
self.push_in_progress = None
def create_model_card(
self,
language: Optional[str] = None,
license: Optional[str] = None,
tags: Union[str, List[str], None] = None,
model_name: Optional[str] = None,
finetuned_from: Optional[str] = None,
tasks: Union[str, List[str], None] = None,
dataset_tags: Union[str, List[str], None] = None,
dataset: Union[str, List[str], None] = None,
dataset_args: Union[str, List[str], None] = None,
):
"""
Creates a draft of a model card using the information available to the `Trainer`.
Args:
language (`str`, *optional*):
The language of the model (if applicable)
license (`str`, *optional*):
The license of the model. Will default to the license of the pretrained model used, if the original
model given to the `Trainer` comes from a repo on the Hub.
tags (`str` or `List[str]`, *optional*):
Some tags to be included in the metadata of the model card.
model_name (`str`, *optional*):
The name of the model.
finetuned_from (`str`, *optional*):
The name of the model used to fine-tune this one (if applicable). Will default to the name of the repo
of the original model given to the `Trainer` (if it comes from the Hub).
tasks (`str` or `List[str]`, *optional*):
One or several task identifiers, to be included in the metadata of the model card.
dataset_tags (`str` or `List[str]`, *optional*):
One or several dataset tags, to be included in the metadata of the model card.
dataset (`str` or `List[str]`, *optional*):
One or several dataset identifiers, to be included in the metadata of the model card.
dataset_args (`str` or `List[str]`, *optional*):
One or several dataset arguments, to be included in the metadata of the model card.
"""
if not self.is_world_process_zero():
return
model_card_filepath = os.path.join(self.args.output_dir, "README.md")
is_peft_library = False
if os.path.exists(model_card_filepath):
library_name = ModelCard.load(model_card_filepath).data.get("library_name")
is_peft_library = library_name == "peft"
# Append existing tags in `tags`
existing_tags = ModelCard.load(model_card_filepath).data.tags
if tags is not None and existing_tags is not None:
if isinstance(tags, str):
tags = [tags]
for tag in existing_tags:
if tag not in tags:
tags.append(tag)
training_summary = TrainingSummary.from_trainer(
self,
language=language,
license=license,
tags=tags,
model_name=model_name,
finetuned_from=finetuned_from,
tasks=tasks,
dataset_tags=dataset_tags,
dataset=dataset,
dataset_args=dataset_args,
)
model_card = training_summary.to_model_card()
with open(model_card_filepath, "w") as f:
f.write(model_card)
if is_peft_library:
self.accelerator.unwrap_model(self.model).create_or_update_model_card(self.args.output_dir)
def _push_from_checkpoint(self, checkpoint_folder):
# Only push from one node.
if not self.is_world_process_zero() or self.args.hub_strategy == HubStrategy.END:
return
# If we haven't finished the last push, we don't do this one unless args.hub_always_push=True.
if not self.args.hub_always_push and self.push_in_progress is not None and not self.push_in_progress.is_done():
return
output_dir = self.args.output_dir
# To avoid a new synchronization of all model weights, we just copy the file from the checkpoint folder
modeling_files = [CONFIG_NAME, WEIGHTS_NAME, SAFE_WEIGHTS_NAME]
if is_peft_available():
modeling_files.extend([ADAPTER_CONFIG_NAME, ADAPTER_WEIGHTS_NAME, ADAPTER_SAFE_WEIGHTS_NAME])
for modeling_file in modeling_files:
if os.path.isfile(os.path.join(checkpoint_folder, modeling_file)):
shutil.copy(os.path.join(checkpoint_folder, modeling_file), os.path.join(output_dir, modeling_file))
# Saving the tokenizer is fast and we don't know how many files it may have spawned, so we resave it to be sure.
if self.tokenizer is not None:
self.tokenizer.save_pretrained(output_dir)
# Same for the training arguments
torch.save(self.args, os.path.join(output_dir, TRAINING_ARGS_NAME))
if self.args.save_strategy == IntervalStrategy.STEPS:
commit_message = f"Training in progress, step {self.state.global_step}"
else:
commit_message = f"Training in progress, epoch {int(self.state.epoch)}"
model_push_job = upload_folder(
repo_id=self.hub_model_id,
folder_path=output_dir,
commit_message=commit_message,
token=self.args.hub_token,
run_as_future=True,
ignore_patterns=["_*", f"{PREFIX_CHECKPOINT_DIR}-*"],
)
push_jobs = [model_push_job]
if self.args.hub_strategy in [HubStrategy.CHECKPOINT, HubStrategy.ALL_CHECKPOINTS]:
path_in_repo = (
"last-checkpoint" if self.args.hub_strategy == HubStrategy.CHECKPOINT else Path(checkpoint_folder).name
)
checkpoint_push = upload_folder(
repo_id=self.hub_model_id,
folder_path=checkpoint_folder,
path_in_repo=path_in_repo,
commit_message=commit_message + ", checkpoint",
token=self.args.hub_token,
run_as_future=True,
)
push_jobs.append(checkpoint_push)
if self.push_in_progress is None or self.push_in_progress.is_done():
self.push_in_progress = PushInProgress(push_jobs)
else:
self.push_in_progress.jobs.extend(push_jobs)
def _finish_current_push(self):
if not hasattr(self, "push_in_progress"):
return
if self.push_in_progress is not None and not self.push_in_progress.is_done():
logger.info("Waiting for the current checkpoint push to be finished, this might take a couple of minutes.")
self.push_in_progress.wait_until_done()
def push_to_hub(
self,
commit_message: Optional[str] = "End of training",
blocking: bool = True,
token: Optional[str] = None,
**kwargs,
) -> str:
"""
Upload `self.model` and `self.tokenizer` to the 🤗 model hub on the repo `self.args.hub_model_id`.
Parameters:
commit_message (`str`, *optional*, defaults to `"End of training"`):
Message to commit while pushing.
blocking (`bool`, *optional*, defaults to `True`):
Whether the function should return only when the `git push` has finished.
token (`str`, *optional*, defaults to `None`):
Token with write permission to overwrite Trainer's original args.
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to [`~Trainer.create_model_card`].
Returns:
The URL of the repository where the model was pushed if `blocking=False`, or a `Future` object tracking the
progress of the commit if `blocking=True`.
"""
model_name = kwargs.pop("model_name", None)
if model_name is None and self.args.should_save:
if self.args.hub_model_id is None:
model_name = Path(self.args.output_dir).name
else:
model_name = self.args.hub_model_id.split("/")[-1]
token = token if token is not None else self.args.hub_token
# In case the user calls this method with args.push_to_hub = False
if self.hub_model_id is None:
self.init_hf_repo(token=token)
# Needs to be executed on all processes for TPU training, but will only save on the processed determined by
# self.args.should_save.
self.save_model(_internal_call=True)
# Only push from one node.
if not self.is_world_process_zero():
return
# Add additional tags in the case the model has already some tags and users pass
# "tags" argument to `push_to_hub` so that trainer automatically handles internal tags
# from all models since Trainer does not call `model.push_to_hub`.
if getattr(self.model, "model_tags", None) is not None:
if "tags" not in kwargs:
kwargs["tags"] = []
# If it is a string, convert it to a list
if isinstance(kwargs["tags"], str):
kwargs["tags"] = [kwargs["tags"]]
for model_tag in self.model.model_tags:
if model_tag not in kwargs["tags"]:
kwargs["tags"].append(model_tag)
self.create_model_card(model_name=model_name, **kwargs)
# Wait for the current upload to be finished.
self._finish_current_push()
return upload_folder(
repo_id=self.hub_model_id,
folder_path=self.args.output_dir,
commit_message=commit_message,
token=token,
run_as_future=not blocking,
ignore_patterns=["_*", f"{PREFIX_CHECKPOINT_DIR}-*"],
)
#
# Deprecated code
#
def prediction_loop(
self,
dataloader: DataLoader,
description: str,
prediction_loss_only: Optional[bool] = None,
ignore_keys: Optional[List[str]] = None,
metric_key_prefix: str = "eval",
) -> EvalLoopOutput:
"""
Prediction/evaluation loop, shared by `Trainer.evaluate()` and `Trainer.predict()`.
Works both with or without labels.
"""
args = self.args
if not has_length(dataloader):
raise ValueError("dataloader must implement a working __len__")
prediction_loss_only = prediction_loss_only if prediction_loss_only is not None else args.prediction_loss_only
# if eval is called w/o train, handle model prep here
if self.is_deepspeed_enabled and self.deepspeed is None:
_, _ = deepspeed_init(self, num_training_steps=0, inference=True)
model = self._wrap_model(self.model, training=False, dataloader=dataloader)
if len(self.accelerator._models) == 0 and model is self.model:
model = (
self.accelerator.prepare(model)
if self.is_deepspeed_enabled
else self.accelerator.prepare_model(model, evaluation_mode=True)
)
if self.is_fsdp_enabled:
self.model = model
# for the rest of this function `model` is the outside model, whether it was wrapped or not
if model is not self.model:
self.model_wrapped = model
# backward compatibility
if self.is_deepspeed_enabled:
self.deepspeed = self.model_wrapped
# if full fp16 or bf16 eval is wanted and this ``evaluation`` or ``predict`` isn't called
# while ``train`` is running, cast it to the right dtype first and then put on device
if not self.is_in_train:
if args.fp16_full_eval:
model = model.to(dtype=torch.float16, device=args.device)
elif args.bf16_full_eval:
model = model.to(dtype=torch.bfloat16, device=args.device)
batch_size = dataloader.batch_size
num_examples = self.num_examples(dataloader)
logger.info(f"***** Running {description} *****")
logger.info(f" Num examples = {num_examples}")
logger.info(f" Batch size = {batch_size}")
losses_host: torch.Tensor = None
preds_host: Union[torch.Tensor, List[torch.Tensor]] = None
labels_host: Union[torch.Tensor, List[torch.Tensor]] = None
inputs_host: Union[torch.Tensor, List[torch.Tensor]] = None
world_size = max(1, args.world_size)
eval_losses_gatherer = DistributedTensorGatherer(world_size, num_examples, make_multiple_of=batch_size)
if not prediction_loss_only:
# The actual number of eval_sample can be greater than num_examples in distributed settings (when we pass
# a batch size to the sampler)
make_multiple_of = None
if hasattr(dataloader, "sampler") and isinstance(dataloader.sampler, SequentialDistributedSampler):
make_multiple_of = dataloader.sampler.batch_size
preds_gatherer = DistributedTensorGatherer(world_size, num_examples, make_multiple_of=make_multiple_of)
labels_gatherer = DistributedTensorGatherer(world_size, num_examples, make_multiple_of=make_multiple_of)
inputs_gatherer = DistributedTensorGatherer(world_size, num_examples, make_multiple_of=make_multiple_of)
model.eval()
if args.past_index >= 0:
self._past = None
self.callback_handler.eval_dataloader = dataloader
for step, inputs in enumerate(dataloader):
loss, logits, labels = self.prediction_step(model, inputs, prediction_loss_only, ignore_keys=ignore_keys)
main_input_name = getattr(self.model, "main_input_name", "input_ids")
inputs_decode = self._prepare_input(inputs[main_input_name]) if args.include_inputs_for_metrics else None
if loss is not None:
losses = loss.repeat(batch_size)
losses_host = losses if losses_host is None else torch.cat((losses_host, losses), dim=0)
if logits is not None:
preds_host = logits if preds_host is None else nested_concat(preds_host, logits, padding_index=-100)
if labels is not None:
labels_host = labels if labels_host is None else nested_concat(labels_host, labels, padding_index=-100)
if inputs_decode is not None:
inputs_host = (
inputs_decode
if inputs_host is None
else nested_concat(inputs_host, inputs_decode, padding_index=-100)
)
self.control = self.callback_handler.on_prediction_step(args, self.state, self.control)
# Gather all tensors and put them back on the CPU if we have done enough accumulation steps.
if args.eval_accumulation_steps is not None and (step + 1) % args.eval_accumulation_steps == 0:
eval_losses_gatherer.add_arrays(self._gather_and_numpify(losses_host, "eval_losses"))
if not prediction_loss_only:
preds_gatherer.add_arrays(self._gather_and_numpify(preds_host, "eval_preds"))
labels_gatherer.add_arrays(self._gather_and_numpify(labels_host, "eval_label_ids"))
inputs_gatherer.add_arrays(self._gather_and_numpify(inputs_host, "eval_inputs_ids"))
# Set back to None to begin a new accumulation
losses_host, preds_host, labels_host, inputs_host = None, None, None, None
if args.past_index and hasattr(self, "_past"):
# Clean the state at the end of the evaluation loop
delattr(self, "_past")
# Gather all remaining tensors and put them back on the CPU
eval_losses_gatherer.add_arrays(self._gather_and_numpify(losses_host, "eval_losses"))
if not prediction_loss_only:
preds_gatherer.add_arrays(self._gather_and_numpify(preds_host, "eval_preds"))
labels_gatherer.add_arrays(self._gather_and_numpify(labels_host, "eval_label_ids"))
inputs_gatherer.add_arrays(self._gather_and_numpify(inputs_host, "eval_inputs_ids"))
eval_loss = eval_losses_gatherer.finalize()
preds = preds_gatherer.finalize() if not prediction_loss_only else None
label_ids = labels_gatherer.finalize() if not prediction_loss_only else None
inputs_ids = inputs_gatherer.finalize() if not prediction_loss_only else None
if self.compute_metrics is not None and preds is not None and label_ids is not None:
if args.include_inputs_for_metrics:
metrics = self.compute_metrics(
EvalPrediction(predictions=preds, label_ids=label_ids, inputs=inputs_ids)
)
else:
metrics = self.compute_metrics(EvalPrediction(predictions=preds, label_ids=label_ids))
else:
metrics = {}
# To be JSON-serializable, we need to remove numpy types or zero-d tensors
metrics = denumpify_detensorize(metrics)
if eval_loss is not None:
metrics[f"{metric_key_prefix}_loss"] = eval_loss.mean().item()
# Prefix all keys with metric_key_prefix + '_'
for key in list(metrics.keys()):
if not key.startswith(f"{metric_key_prefix}_"):
metrics[f"{metric_key_prefix}_{key}"] = metrics.pop(key)
return EvalLoopOutput(predictions=preds, label_ids=label_ids, metrics=metrics, num_samples=num_examples)
def _gather_and_numpify(self, tensors, name):
"""
Gather value of `tensors` (tensor or list/tuple of nested tensors) and convert them to numpy before
concatenating them to `gathered`
"""
if tensors is None:
return
if is_torch_xla_available():
tensors = nested_xla_mesh_reduce(tensors, name)
elif is_sagemaker_mp_enabled():
tensors = smp_gather(tensors)
elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
tensors = distributed_concat(tensors)
return nested_numpify(tensors)
def _add_sm_patterns_to_gitignore(self) -> None:
"""Add SageMaker Checkpointing patterns to .gitignore file."""
# Make sure we only do this on the main process
if not self.is_world_process_zero():
return
patterns = ["*.sagemaker-uploading", "*.sagemaker-uploaded"]
# Get current .gitignore content
if os.path.exists(os.path.join(self.repo.local_dir, ".gitignore")):
with open(os.path.join(self.repo.local_dir, ".gitignore"), "r") as f:
current_content = f.read()
else:
current_content = ""
# Add the patterns to .gitignore
content = current_content
for pattern in patterns:
if pattern not in content:
if content.endswith("\n"):
content += pattern
else:
content += f"\n{pattern}"
# Write the .gitignore file if it has changed
if content != current_content:
with open(os.path.join(self.repo.local_dir, ".gitignore"), "w") as f:
logger.debug(f"Writing .gitignore file. Content: {content}")
f.write(content)
self.repo.git_add(".gitignore")
# avoid race condition with git status
time.sleep(0.5)
if not self.repo.is_repo_clean():
self.repo.git_commit("Add *.sagemaker patterns to .gitignore.")
self.repo.git_push()
def create_accelerator_and_postprocess(self):
grad_acc_kwargs = {}
if is_accelerate_available("0.28.0") and self.args.accelerator_config.gradient_accumulation_kwargs is not None:
grad_acc_kwargs = self.args.accelerator_config.gradient_accumulation_kwargs
# check if num_steps is attempted to be passed in gradient_accumulation_kwargs
if "num_steps" in grad_acc_kwargs and self.args.gradient_accumulation_steps > 1:
# raise because we do not know which setting is intended.
raise ValueError(
"The `AcceleratorConfig`'s `num_steps` is set but `gradient_accumulation_steps` is greater than 1 in the passed `TrainingArguments`"
"If using the passed `AcceleratorConfig` is desired, do not set the `TrainingArguments` `gradient_accumulation_steps`."
)
elif "num_steps" not in grad_acc_kwargs:
# take the gradient_accumulation_steps setting from TrainingArguments.
grad_acc_kwargs["num_steps"] = self.args.gradient_accumulation_steps
grad_acc_kwargs["sync_with_dataloader"] = False
gradient_accumulation_plugin = GradientAccumulationPlugin(**grad_acc_kwargs)
accelerator_config = self.args.accelerator_config.to_dict()
if is_accelerate_available("0.28.0"):
dataloader_config = DataLoaderConfiguration(
split_batches=accelerator_config.pop("split_batches"),
dispatch_batches=accelerator_config.pop("dispatch_batches"),
even_batches=accelerator_config.pop("even_batches"),
use_seedable_sampler=accelerator_config.pop("use_seedable_sampler"),
)
non_blocking = accelerator_config.pop("non_blocking")
if not is_accelerate_available("0.30.0"):
if non_blocking:
raise ImportError(
"`non_blocking` is only supported in accelerate v0.30.0 and above. Please upgrade accelerate to use this feature."
)
else:
if non_blocking and not self.args.dataloader_pin_memory:
logger.warning(
"`non_blocking` is enabled but `dataloader_pin_memory` is not. For the best performance, it's recommended to enable both."
)
dataloader_config.non_blocking = non_blocking
# this would have been updated above, no need for it anymore
accelerator_config.pop("gradient_accumulation_kwargs")
args = {
"deepspeed_plugin": self.args.deepspeed_plugin,
"gradient_accumulation_plugin": gradient_accumulation_plugin,
}
if is_accelerate_available("0.28.0"):
args["dataloader_config"] = dataloader_config
else:
args.update(accelerator_config)
# create accelerator object
self.accelerator = Accelerator(**args)
# some Trainer classes need to use `gather` instead of `gather_for_metrics`, thus we store a flag
self.gather_function = self.accelerator.gather_for_metrics
# deepspeed and accelerate flags covering both trainer args and accelerate launcher
self.is_deepspeed_enabled = getattr(self.accelerator.state, "deepspeed_plugin", None) is not None
self.is_fsdp_enabled = getattr(self.accelerator.state, "fsdp_plugin", None) is not None
# post accelerator creation setup
if self.is_fsdp_enabled:
fsdp_plugin = self.accelerator.state.fsdp_plugin
fsdp_plugin.limit_all_gathers = self.args.fsdp_config.get(
"limit_all_gathers", fsdp_plugin.limit_all_gathers
)
if is_accelerate_available("0.23.0"):
fsdp_plugin.activation_checkpointing = self.args.fsdp_config.get(
"activation_checkpointing", fsdp_plugin.activation_checkpointing
)
if fsdp_plugin.activation_checkpointing and self.args.gradient_checkpointing:
raise ValueError(
"The activation_checkpointing in FSDP config and the gradient_checkpointing in training arg "
"can't be set to True simultaneously. Please use FSDP's activation_checkpointing logic "
"when using FSDP."
)
if self.is_deepspeed_enabled and getattr(self.args, "hf_deepspeed_config", None) is None:
self.propagate_args_to_deepspeed()
# `save_only_model` can't be used with DeepSpeed/FSDP along with `load_best_model_at_end`
if (
self.args.save_only_model
and (self.is_deepspeed_enabled or self.is_fsdp_enabled)
and self.args.load_best_model_at_end
):
wrapper = "DeepSpeed" if self.is_deepspeed_enabled else "FSDP"
raise ValueError(f"{wrapper} can't be used with `save_only_model` along with `load_best_model_at_end`.")
# `auto_find_batch_size` isn't yet supported with DeepSpeed/FSDP
if (self.is_deepspeed_enabled or self.is_fsdp_enabled) and self.args.auto_find_batch_size:
wrapper = "DeepSpeed" if self.is_deepspeed_enabled else "FSDP"
raise NotImplementedError(f"`{wrapper}` doesn't support `auto_find_batch_size`.")
def propagate_args_to_deepspeed(self, auto_find_batch_size=False):
"""
Sets values in the deepspeed plugin based on the Trainer args
"""
from transformers.integrations.deepspeed import HfTrainerDeepSpeedConfig
ds_plugin = self.accelerator.state.deepspeed_plugin
ds_plugin.hf_ds_config = HfTrainerDeepSpeedConfig(ds_plugin.hf_ds_config.config)
ds_plugin.deepspeed_config = ds_plugin.hf_ds_config.config
ds_plugin.hf_ds_config.trainer_config_process(self.args, auto_find_batch_size)
def _fsdp_qlora_plugin_updates(self):
if self.is_fsdp_enabled and _is_peft_model(self.model):
from peft import LoraConfig
from peft.utils.other import fsdp_auto_wrap_policy
if isinstance(self.model.active_peft_config, LoraConfig):
fsdp_plugin = self.accelerator.state.fsdp_plugin
fsdp_plugin.auto_wrap_policy = fsdp_auto_wrap_policy(self.model)
if (
getattr(self.model, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES
and self.model.hf_quantizer.quantization_config.bnb_4bit_quant_storage.is_floating_point
and version.parse(accelerate_version) > version.parse("0.27.0")
):
fsdp_plugin.set_mixed_precision(
self.model.hf_quantizer.quantization_config.bnb_4bit_quant_storage, override=True
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/activations_tf.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import math
import tensorflow as tf
from packaging.version import parse
try:
import tf_keras as keras
except (ModuleNotFoundError, ImportError):
import keras
if parse(keras.__version__).major > 2:
raise ValueError(
"Your currently installed version of Keras is Keras 3, but this is not yet supported in "
"Transformers. Please install the backwards-compatible tf-keras package with "
"`pip install tf-keras`."
)
def _gelu(x):
"""
Gaussian Error Linear Unit. Original Implementation of the gelu activation function in Google Bert repo when
initially created. For information: OpenAI GPT's gelu is slightly different (and gives slightly different results):
0.5 * x * (1 + torch.tanh(math.sqrt(2 / math.pi) * (x + 0.044715 * torch.pow(x, 3)))) Also see
https://arxiv.org/abs/1606.08415
"""
x = tf.convert_to_tensor(x)
cdf = 0.5 * (1.0 + tf.math.erf(x / tf.cast(tf.sqrt(2.0), x.dtype)))
return x * cdf
def _gelu_new(x):
"""
Gaussian Error Linear Unit. This is a smoother version of the GELU. Original paper: https://arxiv.org/abs/1606.0841
Args:
x: float Tensor to perform activation
Returns:
`x` with the GELU activation applied.
"""
x = tf.convert_to_tensor(x)
pi = tf.cast(math.pi, x.dtype)
coeff = tf.cast(0.044715, x.dtype)
cdf = 0.5 * (1.0 + tf.tanh(tf.sqrt(2.0 / pi) * (x + coeff * tf.pow(x, 3))))
return x * cdf
def mish(x):
x = tf.convert_to_tensor(x)
return x * tf.tanh(tf.math.softplus(x))
def gelu_fast(x):
x = tf.convert_to_tensor(x)
coeff1 = tf.cast(0.044715, x.dtype)
coeff2 = tf.cast(0.7978845608, x.dtype)
return 0.5 * x * (1.0 + tf.tanh(x * coeff2 * (1.0 + coeff1 * x * x)))
def quick_gelu(x):
x = tf.convert_to_tensor(x)
coeff = tf.cast(1.702, x.dtype)
return x * tf.math.sigmoid(coeff * x)
def gelu_10(x):
"""
Clip the range of possible GeLU outputs between [-10, 10]. This is especially useful for quantization purpose, as
it allows mapping 2 negatives values in the GeLU spectrum. For more information on this trick, please refer to
https://arxiv.org/abs/2004.09602
Gaussian Error Linear Unit. Original Implementation of the gelu activation function in Google Bert repo when
initially created. For information: OpenAI GPT's gelu is slightly different (and gives slightly different results):
0.5 * x * (1 + torch.tanh(math.sqrt(2 / math.pi) * (x + 0.044715 * torch.pow(x, 3)))) Also see
https://arxiv.org/abs/1606.08415 :param x: :return:
"""
return tf.clip_by_value(_gelu(x), -10, 10)
def glu(x, axis=-1):
"""
Gated Linear Unit. Implementation as defined in the original paper (see https://arxiv.org/abs/1612.08083), where
the input `x` is split in two halves across a dimension (`axis`), A and B, returning A * sigmoid(B).
Args:
`x`: float Tensor to perform activation
`axis`: dimension across which `x` be split in half
Returns:
`x` with the GLU activation applied (with its size halved across the dimension `axis`).
"""
a, b = tf.split(x, 2, axis=axis)
return a * tf.math.sigmoid(b)
if parse(tf.version.VERSION) >= parse("2.4"):
def approximate_gelu_wrap(x):
return keras.activations.gelu(x, approximate=True)
gelu = keras.activations.gelu
gelu_new = approximate_gelu_wrap
else:
gelu = _gelu
gelu_new = _gelu_new
ACT2FN = {
"gelu": gelu,
"gelu_10": gelu_10,
"gelu_fast": gelu_fast,
"gelu_new": gelu_new,
"glu": glu,
"mish": mish,
"quick_gelu": quick_gelu,
"relu": keras.activations.relu,
"sigmoid": keras.activations.sigmoid,
"silu": keras.activations.swish,
"swish": keras.activations.swish,
"tanh": keras.activations.tanh,
}
def get_tf_activation(activation_string):
if activation_string in ACT2FN:
return ACT2FN[activation_string]
else:
raise KeyError(f"function {activation_string} not found in ACT2FN mapping {list(ACT2FN.keys())}")
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/image_transforms.py | # coding=utf-8
# Copyright 2022 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import warnings
from typing import Iterable, List, Optional, Tuple, Union
import numpy as np
from .image_utils import (
ChannelDimension,
ImageInput,
get_channel_dimension_axis,
get_image_size,
infer_channel_dimension_format,
)
from .utils import ExplicitEnum, TensorType, is_jax_tensor, is_tf_tensor, is_torch_tensor
from .utils.import_utils import (
is_flax_available,
is_tf_available,
is_torch_available,
is_vision_available,
requires_backends,
)
if is_vision_available():
import PIL
from .image_utils import PILImageResampling
if is_torch_available():
import torch
if is_tf_available():
import tensorflow as tf
if is_flax_available():
import jax.numpy as jnp
def to_channel_dimension_format(
image: np.ndarray,
channel_dim: Union[ChannelDimension, str],
input_channel_dim: Optional[Union[ChannelDimension, str]] = None,
) -> np.ndarray:
"""
Converts `image` to the channel dimension format specified by `channel_dim`.
Args:
image (`numpy.ndarray`):
The image to have its channel dimension set.
channel_dim (`ChannelDimension`):
The channel dimension format to use.
input_channel_dim (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If not provided, it will be inferred from the input image.
Returns:
`np.ndarray`: The image with the channel dimension set to `channel_dim`.
"""
if not isinstance(image, np.ndarray):
raise ValueError(f"Input image must be of type np.ndarray, got {type(image)}")
if input_channel_dim is None:
input_channel_dim = infer_channel_dimension_format(image)
target_channel_dim = ChannelDimension(channel_dim)
if input_channel_dim == target_channel_dim:
return image
if target_channel_dim == ChannelDimension.FIRST:
image = image.transpose((2, 0, 1))
elif target_channel_dim == ChannelDimension.LAST:
image = image.transpose((1, 2, 0))
else:
raise ValueError("Unsupported channel dimension format: {}".format(channel_dim))
return image
def rescale(
image: np.ndarray,
scale: float,
data_format: Optional[ChannelDimension] = None,
dtype: np.dtype = np.float32,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> np.ndarray:
"""
Rescales `image` by `scale`.
Args:
image (`np.ndarray`):
The image to rescale.
scale (`float`):
The scale to use for rescaling the image.
data_format (`ChannelDimension`, *optional*):
The channel dimension format of the image. If not provided, it will be the same as the input image.
dtype (`np.dtype`, *optional*, defaults to `np.float32`):
The dtype of the output image. Defaults to `np.float32`. Used for backwards compatibility with feature
extractors.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If not provided, it will be inferred from the input image.
Returns:
`np.ndarray`: The rescaled image.
"""
if not isinstance(image, np.ndarray):
raise ValueError(f"Input image must be of type np.ndarray, got {type(image)}")
rescaled_image = image * scale
if data_format is not None:
rescaled_image = to_channel_dimension_format(rescaled_image, data_format, input_data_format)
rescaled_image = rescaled_image.astype(dtype)
return rescaled_image
def _rescale_for_pil_conversion(image):
"""
Detects whether or not the image needs to be rescaled before being converted to a PIL image.
The assumption is that if the image is of type `np.float` and all values are between 0 and 1, it needs to be
rescaled.
"""
if image.dtype == np.uint8:
do_rescale = False
elif np.allclose(image, image.astype(int)):
if np.all(0 <= image) and np.all(image <= 255):
do_rescale = False
else:
raise ValueError(
"The image to be converted to a PIL image contains values outside the range [0, 255], "
f"got [{image.min()}, {image.max()}] which cannot be converted to uint8."
)
elif np.all(0 <= image) and np.all(image <= 1):
do_rescale = True
else:
raise ValueError(
"The image to be converted to a PIL image contains values outside the range [0, 1], "
f"got [{image.min()}, {image.max()}] which cannot be converted to uint8."
)
return do_rescale
def to_pil_image(
image: Union[np.ndarray, "PIL.Image.Image", "torch.Tensor", "tf.Tensor", "jnp.ndarray"],
do_rescale: Optional[bool] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> "PIL.Image.Image":
"""
Converts `image` to a PIL Image. Optionally rescales it and puts the channel dimension back as the last axis if
needed.
Args:
image (`PIL.Image.Image` or `numpy.ndarray` or `torch.Tensor` or `tf.Tensor`):
The image to convert to the `PIL.Image` format.
do_rescale (`bool`, *optional*):
Whether or not to apply the scaling factor (to make pixel values integers between 0 and 255). Will default
to `True` if the image type is a floating type and casting to `int` would result in a loss of precision,
and `False` otherwise.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If unset, will use the inferred format from the input.
Returns:
`PIL.Image.Image`: The converted image.
"""
requires_backends(to_pil_image, ["vision"])
if isinstance(image, PIL.Image.Image):
return image
# Convert all tensors to numpy arrays before converting to PIL image
if is_torch_tensor(image) or is_tf_tensor(image):
image = image.numpy()
elif is_jax_tensor(image):
image = np.array(image)
elif not isinstance(image, np.ndarray):
raise ValueError("Input image type not supported: {}".format(type(image)))
# If the channel has been moved to first dim, we put it back at the end.
image = to_channel_dimension_format(image, ChannelDimension.LAST, input_data_format)
# If there is a single channel, we squeeze it, as otherwise PIL can't handle it.
image = np.squeeze(image, axis=-1) if image.shape[-1] == 1 else image
# PIL.Image can only store uint8 values so we rescale the image to be between 0 and 255 if needed.
do_rescale = _rescale_for_pil_conversion(image) if do_rescale is None else do_rescale
if do_rescale:
image = rescale(image, 255)
image = image.astype(np.uint8)
return PIL.Image.fromarray(image)
# Logic adapted from torchvision resizing logic: https://github.com/pytorch/vision/blob/511924c1ced4ce0461197e5caa64ce5b9e558aab/torchvision/transforms/functional.py#L366
def get_resize_output_image_size(
input_image: np.ndarray,
size: Union[int, Tuple[int, int], List[int], Tuple[int]],
default_to_square: bool = True,
max_size: Optional[int] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> tuple:
"""
Find the target (height, width) dimension of the output image after resizing given the input image and the desired
size.
Args:
input_image (`np.ndarray`):
The image to resize.
size (`int` or `Tuple[int, int]` or List[int] or Tuple[int]):
The size to use for resizing the image. If `size` is a sequence like (h, w), output size will be matched to
this.
If `size` is an int and `default_to_square` is `True`, then image will be resized to (size, size). If
`size` is an int and `default_to_square` is `False`, then smaller edge of the image will be matched to this
number. i.e, if height > width, then image will be rescaled to (size * height / width, size).
default_to_square (`bool`, *optional*, defaults to `True`):
How to convert `size` when it is a single int. If set to `True`, the `size` will be converted to a square
(`size`,`size`). If set to `False`, will replicate
[`torchvision.transforms.Resize`](https://pytorch.org/vision/stable/transforms.html#torchvision.transforms.Resize)
with support for resizing only the smallest edge and providing an optional `max_size`.
max_size (`int`, *optional*):
The maximum allowed for the longer edge of the resized image: if the longer edge of the image is greater
than `max_size` after being resized according to `size`, then the image is resized again so that the longer
edge is equal to `max_size`. As a result, `size` might be overruled, i.e the smaller edge may be shorter
than `size`. Only used if `default_to_square` is `False`.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If unset, will use the inferred format from the input.
Returns:
`tuple`: The target (height, width) dimension of the output image after resizing.
"""
if isinstance(size, (tuple, list)):
if len(size) == 2:
return tuple(size)
elif len(size) == 1:
# Perform same logic as if size was an int
size = size[0]
else:
raise ValueError("size must have 1 or 2 elements if it is a list or tuple")
if default_to_square:
return (size, size)
height, width = get_image_size(input_image, input_data_format)
short, long = (width, height) if width <= height else (height, width)
requested_new_short = size
new_short, new_long = requested_new_short, int(requested_new_short * long / short)
if max_size is not None:
if max_size <= requested_new_short:
raise ValueError(
f"max_size = {max_size} must be strictly greater than the requested "
f"size for the smaller edge size = {size}"
)
if new_long > max_size:
new_short, new_long = int(max_size * new_short / new_long), max_size
return (new_long, new_short) if width <= height else (new_short, new_long)
def resize(
image: np.ndarray,
size: Tuple[int, int],
resample: "PILImageResampling" = None,
reducing_gap: Optional[int] = None,
data_format: Optional[ChannelDimension] = None,
return_numpy: bool = True,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> np.ndarray:
"""
Resizes `image` to `(height, width)` specified by `size` using the PIL library.
Args:
image (`np.ndarray`):
The image to resize.
size (`Tuple[int, int]`):
The size to use for resizing the image.
resample (`int`, *optional*, defaults to `PILImageResampling.BILINEAR`):
The filter to user for resampling.
reducing_gap (`int`, *optional*):
Apply optimization by resizing the image in two steps. The bigger `reducing_gap`, the closer the result to
the fair resampling. See corresponding Pillow documentation for more details.
data_format (`ChannelDimension`, *optional*):
The channel dimension format of the output image. If unset, will use the inferred format from the input.
return_numpy (`bool`, *optional*, defaults to `True`):
Whether or not to return the resized image as a numpy array. If False a `PIL.Image.Image` object is
returned.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If unset, will use the inferred format from the input.
Returns:
`np.ndarray`: The resized image.
"""
requires_backends(resize, ["vision"])
resample = resample if resample is not None else PILImageResampling.BILINEAR
if not len(size) == 2:
raise ValueError("size must have 2 elements")
# For all transformations, we want to keep the same data format as the input image unless otherwise specified.
# The resized image from PIL will always have channels last, so find the input format first.
if input_data_format is None:
input_data_format = infer_channel_dimension_format(image)
data_format = input_data_format if data_format is None else data_format
# To maintain backwards compatibility with the resizing done in previous image feature extractors, we use
# the pillow library to resize the image and then convert back to numpy
do_rescale = False
if not isinstance(image, PIL.Image.Image):
do_rescale = _rescale_for_pil_conversion(image)
image = to_pil_image(image, do_rescale=do_rescale, input_data_format=input_data_format)
height, width = size
# PIL images are in the format (width, height)
resized_image = image.resize((width, height), resample=resample, reducing_gap=reducing_gap)
if return_numpy:
resized_image = np.array(resized_image)
# If the input image channel dimension was of size 1, then it is dropped when converting to a PIL image
# so we need to add it back if necessary.
resized_image = np.expand_dims(resized_image, axis=-1) if resized_image.ndim == 2 else resized_image
# The image is always in channels last format after converting from a PIL image
resized_image = to_channel_dimension_format(
resized_image, data_format, input_channel_dim=ChannelDimension.LAST
)
# If an image was rescaled to be in the range [0, 255] before converting to a PIL image, then we need to
# rescale it back to the original range.
resized_image = rescale(resized_image, 1 / 255) if do_rescale else resized_image
return resized_image
def normalize(
image: np.ndarray,
mean: Union[float, Iterable[float]],
std: Union[float, Iterable[float]],
data_format: Optional[ChannelDimension] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> np.ndarray:
"""
Normalizes `image` using the mean and standard deviation specified by `mean` and `std`.
image = (image - mean) / std
Args:
image (`np.ndarray`):
The image to normalize.
mean (`float` or `Iterable[float]`):
The mean to use for normalization.
std (`float` or `Iterable[float]`):
The standard deviation to use for normalization.
data_format (`ChannelDimension`, *optional*):
The channel dimension format of the output image. If unset, will use the inferred format from the input.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format of the input image. If unset, will use the inferred format from the input.
"""
if not isinstance(image, np.ndarray):
raise ValueError("image must be a numpy array")
if input_data_format is None:
input_data_format = infer_channel_dimension_format(image)
channel_axis = get_channel_dimension_axis(image, input_data_format=input_data_format)
num_channels = image.shape[channel_axis]
# We cast to float32 to avoid errors that can occur when subtracting uint8 values.
# We preserve the original dtype if it is a float type to prevent upcasting float16.
if not np.issubdtype(image.dtype, np.floating):
image = image.astype(np.float32)
if isinstance(mean, Iterable):
if len(mean) != num_channels:
raise ValueError(f"mean must have {num_channels} elements if it is an iterable, got {len(mean)}")
else:
mean = [mean] * num_channels
mean = np.array(mean, dtype=image.dtype)
if isinstance(std, Iterable):
if len(std) != num_channels:
raise ValueError(f"std must have {num_channels} elements if it is an iterable, got {len(std)}")
else:
std = [std] * num_channels
std = np.array(std, dtype=image.dtype)
if input_data_format == ChannelDimension.LAST:
image = (image - mean) / std
else:
image = ((image.T - mean) / std).T
image = to_channel_dimension_format(image, data_format, input_data_format) if data_format is not None else image
return image
def center_crop(
image: np.ndarray,
size: Tuple[int, int],
data_format: Optional[Union[str, ChannelDimension]] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
return_numpy: Optional[bool] = None,
) -> np.ndarray:
"""
Crops the `image` to the specified `size` using a center crop. Note that if the image is too small to be cropped to
the size given, it will be padded (so the returned result will always be of size `size`).
Args:
image (`np.ndarray`):
The image to crop.
size (`Tuple[int, int]`):
The target size for the cropped image.
data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the output image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use the inferred format of the input image.
input_data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the input image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use the inferred format of the input image.
return_numpy (`bool`, *optional*):
Whether or not to return the cropped image as a numpy array. Used for backwards compatibility with the
previous ImageFeatureExtractionMixin method.
- Unset: will return the same type as the input image.
- `True`: will return a numpy array.
- `False`: will return a `PIL.Image.Image` object.
Returns:
`np.ndarray`: The cropped image.
"""
requires_backends(center_crop, ["vision"])
if return_numpy is not None:
warnings.warn("return_numpy is deprecated and will be removed in v.4.33", FutureWarning)
return_numpy = True if return_numpy is None else return_numpy
if not isinstance(image, np.ndarray):
raise ValueError(f"Input image must be of type np.ndarray, got {type(image)}")
if not isinstance(size, Iterable) or len(size) != 2:
raise ValueError("size must have 2 elements representing the height and width of the output image")
if input_data_format is None:
input_data_format = infer_channel_dimension_format(image)
output_data_format = data_format if data_format is not None else input_data_format
# We perform the crop in (C, H, W) format and then convert to the output format
image = to_channel_dimension_format(image, ChannelDimension.FIRST, input_data_format)
orig_height, orig_width = get_image_size(image, ChannelDimension.FIRST)
crop_height, crop_width = size
crop_height, crop_width = int(crop_height), int(crop_width)
# In case size is odd, (image_shape[0] + size[0]) // 2 won't give the proper result.
top = (orig_height - crop_height) // 2
bottom = top + crop_height
# In case size is odd, (image_shape[1] + size[1]) // 2 won't give the proper result.
left = (orig_width - crop_width) // 2
right = left + crop_width
# Check if cropped area is within image boundaries
if top >= 0 and bottom <= orig_height and left >= 0 and right <= orig_width:
image = image[..., top:bottom, left:right]
image = to_channel_dimension_format(image, output_data_format, ChannelDimension.FIRST)
return image
# Otherwise, we may need to pad if the image is too small. Oh joy...
new_height = max(crop_height, orig_height)
new_width = max(crop_width, orig_width)
new_shape = image.shape[:-2] + (new_height, new_width)
new_image = np.zeros_like(image, shape=new_shape)
# If the image is too small, pad it with zeros
top_pad = (new_height - orig_height) // 2
bottom_pad = top_pad + orig_height
left_pad = (new_width - orig_width) // 2
right_pad = left_pad + orig_width
new_image[..., top_pad:bottom_pad, left_pad:right_pad] = image
top += top_pad
bottom += top_pad
left += left_pad
right += left_pad
new_image = new_image[..., max(0, top) : min(new_height, bottom), max(0, left) : min(new_width, right)]
new_image = to_channel_dimension_format(new_image, output_data_format, ChannelDimension.FIRST)
if not return_numpy:
new_image = to_pil_image(new_image)
return new_image
def _center_to_corners_format_torch(bboxes_center: "torch.Tensor") -> "torch.Tensor":
center_x, center_y, width, height = bboxes_center.unbind(-1)
bbox_corners = torch.stack(
# top left x, top left y, bottom right x, bottom right y
[(center_x - 0.5 * width), (center_y - 0.5 * height), (center_x + 0.5 * width), (center_y + 0.5 * height)],
dim=-1,
)
return bbox_corners
def _center_to_corners_format_numpy(bboxes_center: np.ndarray) -> np.ndarray:
center_x, center_y, width, height = bboxes_center.T
bboxes_corners = np.stack(
# top left x, top left y, bottom right x, bottom right y
[center_x - 0.5 * width, center_y - 0.5 * height, center_x + 0.5 * width, center_y + 0.5 * height],
axis=-1,
)
return bboxes_corners
def _center_to_corners_format_tf(bboxes_center: "tf.Tensor") -> "tf.Tensor":
center_x, center_y, width, height = tf.unstack(bboxes_center, axis=-1)
bboxes_corners = tf.stack(
# top left x, top left y, bottom right x, bottom right y
[center_x - 0.5 * width, center_y - 0.5 * height, center_x + 0.5 * width, center_y + 0.5 * height],
axis=-1,
)
return bboxes_corners
# 2 functions below inspired by https://github.com/facebookresearch/detr/blob/master/util/box_ops.py
def center_to_corners_format(bboxes_center: TensorType) -> TensorType:
"""
Converts bounding boxes from center format to corners format.
center format: contains the coordinate for the center of the box and its width, height dimensions
(center_x, center_y, width, height)
corners format: contains the coodinates for the top-left and bottom-right corners of the box
(top_left_x, top_left_y, bottom_right_x, bottom_right_y)
"""
# Function is used during model forward pass, so we use the input framework if possible, without
# converting to numpy
if is_torch_tensor(bboxes_center):
return _center_to_corners_format_torch(bboxes_center)
elif isinstance(bboxes_center, np.ndarray):
return _center_to_corners_format_numpy(bboxes_center)
elif is_tf_tensor(bboxes_center):
return _center_to_corners_format_tf(bboxes_center)
raise ValueError(f"Unsupported input type {type(bboxes_center)}")
def _corners_to_center_format_torch(bboxes_corners: "torch.Tensor") -> "torch.Tensor":
top_left_x, top_left_y, bottom_right_x, bottom_right_y = bboxes_corners.unbind(-1)
b = [
(top_left_x + bottom_right_x) / 2, # center x
(top_left_y + bottom_right_y) / 2, # center y
(bottom_right_x - top_left_x), # width
(bottom_right_y - top_left_y), # height
]
return torch.stack(b, dim=-1)
def _corners_to_center_format_numpy(bboxes_corners: np.ndarray) -> np.ndarray:
top_left_x, top_left_y, bottom_right_x, bottom_right_y = bboxes_corners.T
bboxes_center = np.stack(
[
(top_left_x + bottom_right_x) / 2, # center x
(top_left_y + bottom_right_y) / 2, # center y
(bottom_right_x - top_left_x), # width
(bottom_right_y - top_left_y), # height
],
axis=-1,
)
return bboxes_center
def _corners_to_center_format_tf(bboxes_corners: "tf.Tensor") -> "tf.Tensor":
top_left_x, top_left_y, bottom_right_x, bottom_right_y = tf.unstack(bboxes_corners, axis=-1)
bboxes_center = tf.stack(
[
(top_left_x + bottom_right_x) / 2, # center x
(top_left_y + bottom_right_y) / 2, # center y
(bottom_right_x - top_left_x), # width
(bottom_right_y - top_left_y), # height
],
axis=-1,
)
return bboxes_center
def corners_to_center_format(bboxes_corners: TensorType) -> TensorType:
"""
Converts bounding boxes from corners format to center format.
corners format: contains the coordinates for the top-left and bottom-right corners of the box
(top_left_x, top_left_y, bottom_right_x, bottom_right_y)
center format: contains the coordinate for the center of the box and its the width, height dimensions
(center_x, center_y, width, height)
"""
# Inverse function accepts different input types so implemented here too
if is_torch_tensor(bboxes_corners):
return _corners_to_center_format_torch(bboxes_corners)
elif isinstance(bboxes_corners, np.ndarray):
return _corners_to_center_format_numpy(bboxes_corners)
elif is_tf_tensor(bboxes_corners):
return _corners_to_center_format_tf(bboxes_corners)
raise ValueError(f"Unsupported input type {type(bboxes_corners)}")
# 2 functions below copied from https://github.com/cocodataset/panopticapi/blob/master/panopticapi/utils.py
# Copyright (c) 2018, Alexander Kirillov
# All rights reserved.
def rgb_to_id(color):
"""
Converts RGB color to unique ID.
"""
if isinstance(color, np.ndarray) and len(color.shape) == 3:
if color.dtype == np.uint8:
color = color.astype(np.int32)
return color[:, :, 0] + 256 * color[:, :, 1] + 256 * 256 * color[:, :, 2]
return int(color[0] + 256 * color[1] + 256 * 256 * color[2])
def id_to_rgb(id_map):
"""
Converts unique ID to RGB color.
"""
if isinstance(id_map, np.ndarray):
id_map_copy = id_map.copy()
rgb_shape = tuple(list(id_map.shape) + [3])
rgb_map = np.zeros(rgb_shape, dtype=np.uint8)
for i in range(3):
rgb_map[..., i] = id_map_copy % 256
id_map_copy //= 256
return rgb_map
color = []
for _ in range(3):
color.append(id_map % 256)
id_map //= 256
return color
class PaddingMode(ExplicitEnum):
"""
Enum class for the different padding modes to use when padding images.
"""
CONSTANT = "constant"
REFLECT = "reflect"
REPLICATE = "replicate"
SYMMETRIC = "symmetric"
def pad(
image: np.ndarray,
padding: Union[int, Tuple[int, int], Iterable[Tuple[int, int]]],
mode: PaddingMode = PaddingMode.CONSTANT,
constant_values: Union[float, Iterable[float]] = 0.0,
data_format: Optional[Union[str, ChannelDimension]] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> np.ndarray:
"""
Pads the `image` with the specified (height, width) `padding` and `mode`.
Args:
image (`np.ndarray`):
The image to pad.
padding (`int` or `Tuple[int, int]` or `Iterable[Tuple[int, int]]`):
Padding to apply to the edges of the height, width axes. Can be one of three formats:
- `((before_height, after_height), (before_width, after_width))` unique pad widths for each axis.
- `((before, after),)` yields same before and after pad for height and width.
- `(pad,)` or int is a shortcut for before = after = pad width for all axes.
mode (`PaddingMode`):
The padding mode to use. Can be one of:
- `"constant"`: pads with a constant value.
- `"reflect"`: pads with the reflection of the vector mirrored on the first and last values of the
vector along each axis.
- `"replicate"`: pads with the replication of the last value on the edge of the array along each axis.
- `"symmetric"`: pads with the reflection of the vector mirrored along the edge of the array.
constant_values (`float` or `Iterable[float]`, *optional*):
The value to use for the padding if `mode` is `"constant"`.
data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the output image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use same as the input image.
input_data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the input image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use the inferred format of the input image.
Returns:
`np.ndarray`: The padded image.
"""
if input_data_format is None:
input_data_format = infer_channel_dimension_format(image)
def _expand_for_data_format(values):
"""
Convert values to be in the format expected by np.pad based on the data format.
"""
if isinstance(values, (int, float)):
values = ((values, values), (values, values))
elif isinstance(values, tuple) and len(values) == 1:
values = ((values[0], values[0]), (values[0], values[0]))
elif isinstance(values, tuple) and len(values) == 2 and isinstance(values[0], int):
values = (values, values)
elif isinstance(values, tuple) and len(values) == 2 and isinstance(values[0], tuple):
values = values
else:
raise ValueError(f"Unsupported format: {values}")
# add 0 for channel dimension
values = ((0, 0), *values) if input_data_format == ChannelDimension.FIRST else (*values, (0, 0))
# Add additional padding if there's a batch dimension
values = (0, *values) if image.ndim == 4 else values
return values
padding = _expand_for_data_format(padding)
if mode == PaddingMode.CONSTANT:
constant_values = _expand_for_data_format(constant_values)
image = np.pad(image, padding, mode="constant", constant_values=constant_values)
elif mode == PaddingMode.REFLECT:
image = np.pad(image, padding, mode="reflect")
elif mode == PaddingMode.REPLICATE:
image = np.pad(image, padding, mode="edge")
elif mode == PaddingMode.SYMMETRIC:
image = np.pad(image, padding, mode="symmetric")
else:
raise ValueError(f"Invalid padding mode: {mode}")
image = to_channel_dimension_format(image, data_format, input_data_format) if data_format is not None else image
return image
# TODO (Amy): Accept 1/3/4 channel numpy array as input and return np.array as default
def convert_to_rgb(image: ImageInput) -> ImageInput:
"""
Converts an image to RGB format. Only converts if the image is of type PIL.Image.Image, otherwise returns the image
as is.
Args:
image (Image):
The image to convert.
"""
requires_backends(convert_to_rgb, ["vision"])
if not isinstance(image, PIL.Image.Image):
return image
if image.mode == "RGB":
return image
image = image.convert("RGB")
return image
def flip_channel_order(
image: np.ndarray,
data_format: Optional[ChannelDimension] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
) -> np.ndarray:
"""
Flips the channel order of the image.
If the image is in RGB format, it will be converted to BGR and vice versa.
Args:
image (`np.ndarray`):
The image to flip.
data_format (`ChannelDimension`, *optional*):
The channel dimension format for the output image. Can be one of:
- `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use same as the input image.
input_data_format (`ChannelDimension`, *optional*):
The channel dimension format for the input image. Can be one of:
- `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `ChannelDimension.LAST`: image in (height, width, num_channels) format.
If unset, will use the inferred format of the input image.
"""
input_data_format = infer_channel_dimension_format(image) if input_data_format is None else input_data_format
if input_data_format == ChannelDimension.LAST:
image = image[..., ::-1]
elif input_data_format == ChannelDimension.FIRST:
image = image[::-1, ...]
else:
raise ValueError(f"Unsupported channel dimension: {input_data_format}")
if data_format is not None:
image = to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format)
return image
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/pytorch_utils.py | # Copyright 2022 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import inspect
from typing import Callable, List, Optional, Set, Tuple, Union
import torch
from packaging import version
from safetensors.torch import storage_ptr, storage_size
from torch import nn
from .utils import is_torch_xla_available, logging
ALL_LAYERNORM_LAYERS = [nn.LayerNorm]
logger = logging.get_logger(__name__)
parsed_torch_version_base = version.parse(version.parse(torch.__version__).base_version)
is_torch_greater_or_equal_than_2_3 = parsed_torch_version_base >= version.parse("2.3")
is_torch_greater_or_equal_than_2_2 = parsed_torch_version_base >= version.parse("2.2")
is_torch_greater_or_equal_than_2_1 = parsed_torch_version_base >= version.parse("2.1")
is_torch_greater_or_equal_than_2_0 = parsed_torch_version_base >= version.parse("2.0")
is_torch_greater_or_equal_than_1_13 = parsed_torch_version_base >= version.parse("1.13")
is_torch_greater_or_equal_than_1_12 = parsed_torch_version_base >= version.parse("1.12")
def softmax_backward_data(parent, grad_output, output, dim, self):
"""
A function that calls the internal `_softmax_backward_data` PyTorch method and that adjusts the arguments according
to the torch version detected.
"""
from torch import _softmax_backward_data
return _softmax_backward_data(grad_output, output, parent.dim, self.dtype)
def prune_linear_layer(layer: nn.Linear, index: torch.LongTensor, dim: int = 0) -> nn.Linear:
"""
Prune a linear layer to keep only entries in index.
Used to remove heads.
Args:
layer (`torch.nn.Linear`): The layer to prune.
index (`torch.LongTensor`): The indices to keep in the layer.
dim (`int`, *optional*, defaults to 0): The dimension on which to keep the indices.
Returns:
`torch.nn.Linear`: The pruned layer as a new layer with `requires_grad=True`.
"""
index = index.to(layer.weight.device)
W = layer.weight.index_select(dim, index).clone().detach()
if layer.bias is not None:
if dim == 1:
b = layer.bias.clone().detach()
else:
b = layer.bias[index].clone().detach()
new_size = list(layer.weight.size())
new_size[dim] = len(index)
new_layer = nn.Linear(new_size[1], new_size[0], bias=layer.bias is not None).to(layer.weight.device)
new_layer.weight.requires_grad = False
new_layer.weight.copy_(W.contiguous())
new_layer.weight.requires_grad = True
if layer.bias is not None:
new_layer.bias.requires_grad = False
new_layer.bias.copy_(b.contiguous())
new_layer.bias.requires_grad = True
return new_layer
class Conv1D(nn.Module):
"""
1D-convolutional layer as defined by Radford et al. for OpenAI GPT (and also used in GPT-2).
Basically works like a linear layer but the weights are transposed.
Args:
nf (`int`): The number of output features.
nx (`int`): The number of input features.
"""
def __init__(self, nf, nx):
super().__init__()
self.nf = nf
self.weight = nn.Parameter(torch.empty(nx, nf))
self.bias = nn.Parameter(torch.zeros(nf))
nn.init.normal_(self.weight, std=0.02)
def forward(self, x):
size_out = x.size()[:-1] + (self.nf,)
x = torch.addmm(self.bias, x.view(-1, x.size(-1)), self.weight)
x = x.view(size_out)
return x
def prune_conv1d_layer(layer: Conv1D, index: torch.LongTensor, dim: int = 1) -> Conv1D:
"""
Prune a Conv1D layer to keep only entries in index. A Conv1D work as a Linear layer (see e.g. BERT) but the weights
are transposed.
Used to remove heads.
Args:
layer ([`~pytorch_utils.Conv1D`]): The layer to prune.
index (`torch.LongTensor`): The indices to keep in the layer.
dim (`int`, *optional*, defaults to 1): The dimension on which to keep the indices.
Returns:
[`~pytorch_utils.Conv1D`]: The pruned layer as a new layer with `requires_grad=True`.
"""
index = index.to(layer.weight.device)
W = layer.weight.index_select(dim, index).clone().detach()
if dim == 0:
b = layer.bias.clone().detach()
else:
b = layer.bias[index].clone().detach()
new_size = list(layer.weight.size())
new_size[dim] = len(index)
new_layer = Conv1D(new_size[1], new_size[0]).to(layer.weight.device)
new_layer.weight.requires_grad = False
new_layer.weight.copy_(W.contiguous())
new_layer.weight.requires_grad = True
new_layer.bias.requires_grad = False
new_layer.bias.copy_(b.contiguous())
new_layer.bias.requires_grad = True
return new_layer
def prune_layer(
layer: Union[nn.Linear, Conv1D], index: torch.LongTensor, dim: Optional[int] = None
) -> Union[nn.Linear, Conv1D]:
"""
Prune a Conv1D or linear layer to keep only entries in index.
Used to remove heads.
Args:
layer (`Union[torch.nn.Linear, Conv1D]`): The layer to prune.
index (`torch.LongTensor`): The indices to keep in the layer.
dim (`int`, *optional*): The dimension on which to keep the indices.
Returns:
`torch.nn.Linear` or [`~pytorch_utils.Conv1D`]: The pruned layer as a new layer with `requires_grad=True`.
"""
if isinstance(layer, nn.Linear):
return prune_linear_layer(layer, index, dim=0 if dim is None else dim)
elif isinstance(layer, Conv1D):
return prune_conv1d_layer(layer, index, dim=1 if dim is None else dim)
else:
raise ValueError(f"Can't prune layer of class {layer.__class__}")
def apply_chunking_to_forward(
forward_fn: Callable[..., torch.Tensor], chunk_size: int, chunk_dim: int, *input_tensors
) -> torch.Tensor:
"""
This function chunks the `input_tensors` into smaller input tensor parts of size `chunk_size` over the dimension
`chunk_dim`. It then applies a layer `forward_fn` to each chunk independently to save memory.
If the `forward_fn` is independent across the `chunk_dim` this function will yield the same result as directly
applying `forward_fn` to `input_tensors`.
Args:
forward_fn (`Callable[..., torch.Tensor]`):
The forward function of the model.
chunk_size (`int`):
The chunk size of a chunked tensor: `num_chunks = len(input_tensors[0]) / chunk_size`.
chunk_dim (`int`):
The dimension over which the `input_tensors` should be chunked.
input_tensors (`Tuple[torch.Tensor]`):
The input tensors of `forward_fn` which will be chunked
Returns:
`torch.Tensor`: A tensor with the same shape as the `forward_fn` would have given if applied`.
Examples:
```python
# rename the usual forward() fn to forward_chunk()
def forward_chunk(self, hidden_states):
hidden_states = self.decoder(hidden_states)
return hidden_states
# implement a chunked forward function
def forward(self, hidden_states):
return apply_chunking_to_forward(self.forward_chunk, self.chunk_size_lm_head, self.seq_len_dim, hidden_states)
```"""
assert len(input_tensors) > 0, f"{input_tensors} has to be a tuple/list of tensors"
# inspect.signature exist since python 3.5 and is a python method -> no problem with backward compatibility
num_args_in_forward_chunk_fn = len(inspect.signature(forward_fn).parameters)
if num_args_in_forward_chunk_fn != len(input_tensors):
raise ValueError(
f"forward_chunk_fn expects {num_args_in_forward_chunk_fn} arguments, but only {len(input_tensors)} input "
"tensors are given"
)
if chunk_size > 0:
tensor_shape = input_tensors[0].shape[chunk_dim]
for input_tensor in input_tensors:
if input_tensor.shape[chunk_dim] != tensor_shape:
raise ValueError(
f"All input tenors have to be of the same shape: {tensor_shape}, "
f"found shape {input_tensor.shape[chunk_dim]}"
)
if input_tensors[0].shape[chunk_dim] % chunk_size != 0:
raise ValueError(
f"The dimension to be chunked {input_tensors[0].shape[chunk_dim]} has to be a multiple of the chunk "
f"size {chunk_size}"
)
num_chunks = input_tensors[0].shape[chunk_dim] // chunk_size
# chunk input tensor into tuples
input_tensors_chunks = tuple(input_tensor.chunk(num_chunks, dim=chunk_dim) for input_tensor in input_tensors)
# apply forward fn to every tuple
output_chunks = tuple(forward_fn(*input_tensors_chunk) for input_tensors_chunk in zip(*input_tensors_chunks))
# concatenate output at same dimension
return torch.cat(output_chunks, dim=chunk_dim)
return forward_fn(*input_tensors)
def find_pruneable_heads_and_indices(
heads: List[int], n_heads: int, head_size: int, already_pruned_heads: Set[int]
) -> Tuple[Set[int], torch.LongTensor]:
"""
Finds the heads and their indices taking `already_pruned_heads` into account.
Args:
heads (`List[int]`): List of the indices of heads to prune.
n_heads (`int`): The number of heads in the model.
head_size (`int`): The size of each head.
already_pruned_heads (`Set[int]`): A set of already pruned heads.
Returns:
`Tuple[Set[int], torch.LongTensor]`: A tuple with the indices of heads to prune taking `already_pruned_heads`
into account and the indices of rows/columns to keep in the layer weight.
"""
mask = torch.ones(n_heads, head_size)
heads = set(heads) - already_pruned_heads # Convert to set and remove already pruned heads
for head in heads:
# Compute how many pruned heads are before the head and move the index accordingly
head = head - sum(1 if h < head else 0 for h in already_pruned_heads)
mask[head] = 0
mask = mask.view(-1).contiguous().eq(1)
index: torch.LongTensor = torch.arange(len(mask))[mask].long()
return heads, index
def meshgrid(
*tensors: Union[torch.Tensor, List[torch.Tensor]], indexing: Optional[str] = None
) -> Tuple[torch.Tensor, ...]:
"""
Wrapper around torch.meshgrid to avoid warning messages about the introduced `indexing` argument.
Reference: https://pytorch.org/docs/1.13/generated/torch.meshgrid.html
"""
return torch.meshgrid(*tensors, indexing=indexing)
def id_tensor_storage(tensor: torch.Tensor) -> Tuple[torch.device, int, int]:
"""
Unique identifier to a tensor storage. Multiple different tensors can share the same underlying storage. For
example, "meta" tensors all share the same storage, and thus their identifier will all be equal. This identifier is
guaranteed to be unique and constant for this tensor's storage during its lifetime. Two tensor storages with
non-overlapping lifetimes may have the same id.
"""
if tensor.device.type == "xla" and is_torch_xla_available():
# NOTE: xla tensors dont have storage
# use some other unique id to distinguish.
# this is a XLA tensor, it must be created using torch_xla's
# device. So the following import is safe:
import torch_xla
unique_id = torch_xla._XLAC._xla_get_tensor_id(tensor)
else:
unique_id = storage_ptr(tensor)
return tensor.device, unique_id, storage_size(tensor)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/convert_graph_to_onnx.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import warnings
from argparse import ArgumentParser
from os import listdir, makedirs
from pathlib import Path
from typing import Dict, List, Optional, Tuple
from packaging.version import Version, parse
from transformers.pipelines import Pipeline, pipeline
from transformers.tokenization_utils import BatchEncoding
from transformers.utils import ModelOutput, is_tf_available, is_torch_available
# This is the minimal required version to
# support some ONNX Runtime features
ORT_QUANTIZE_MINIMUM_VERSION = parse("1.4.0")
SUPPORTED_PIPELINES = [
"feature-extraction",
"ner",
"sentiment-analysis",
"fill-mask",
"question-answering",
"text-generation",
"translation_en_to_fr",
"translation_en_to_de",
"translation_en_to_ro",
]
class OnnxConverterArgumentParser(ArgumentParser):
"""
Wraps all the script arguments supported to export transformers models to ONNX IR
"""
def __init__(self):
super().__init__("ONNX Converter")
self.add_argument(
"--pipeline",
type=str,
choices=SUPPORTED_PIPELINES,
default="feature-extraction",
)
self.add_argument(
"--model",
type=str,
required=True,
help="Model's id or path (ex: google-bert/bert-base-cased)",
)
self.add_argument("--tokenizer", type=str, help="Tokenizer's id or path (ex: google-bert/bert-base-cased)")
self.add_argument(
"--framework",
type=str,
choices=["pt", "tf"],
help="Framework for loading the model",
)
self.add_argument("--opset", type=int, default=11, help="ONNX opset to use")
self.add_argument(
"--check-loading",
action="store_true",
help="Check ONNX is able to load the model",
)
self.add_argument(
"--use-external-format",
action="store_true",
help="Allow exporting model >= than 2Gb",
)
self.add_argument(
"--quantize",
action="store_true",
help="Quantize the neural network to be run with int8",
)
self.add_argument("output")
def generate_identified_filename(filename: Path, identifier: str) -> Path:
"""
Append a string-identifier at the end (before the extension, if any) to the provided filepath
Args:
filename: pathlib.Path The actual path object we would like to add an identifier suffix
identifier: The suffix to add
Returns: String with concatenated identifier at the end of the filename
"""
return filename.parent.joinpath(filename.stem + identifier).with_suffix(filename.suffix)
def check_onnxruntime_requirements(minimum_version: Version):
"""
Check onnxruntime is installed and if the installed version match is recent enough
Raises:
ImportError: If onnxruntime is not installed or too old version is found
"""
try:
import onnxruntime
# Parse the version of the installed onnxruntime
ort_version = parse(onnxruntime.__version__)
# We require 1.4.0 minimum
if ort_version < ORT_QUANTIZE_MINIMUM_VERSION:
raise ImportError(
f"We found an older version of onnxruntime ({onnxruntime.__version__}) "
f"but we require onnxruntime to be >= {minimum_version} to enable all the conversions options.\n"
"Please update onnxruntime by running `pip install --upgrade onnxruntime`"
)
except ImportError:
raise ImportError(
"onnxruntime doesn't seem to be currently installed. "
"Please install the onnxruntime by running `pip install onnxruntime`"
" and relaunch the conversion."
)
def ensure_valid_input(model, tokens, input_names):
"""
Ensure inputs are presented in the correct order, without any Non
Args:
model: The model used to forward the input data
tokens: BatchEncoding holding the input data
input_names: The name of the inputs
Returns: Tuple
"""
print("Ensuring inputs are in correct order")
model_args_name = model.forward.__code__.co_varnames
model_args, ordered_input_names = [], []
for arg_name in model_args_name[1:]: # start at index 1 to skip "self" argument
if arg_name in input_names:
ordered_input_names.append(arg_name)
model_args.append(tokens[arg_name])
else:
print(f"{arg_name} is not present in the generated input list.")
break
print(f"Generated inputs order: {ordered_input_names}")
return ordered_input_names, tuple(model_args)
def infer_shapes(nlp: Pipeline, framework: str) -> Tuple[List[str], List[str], Dict, BatchEncoding]:
"""
Attempt to infer the static vs dynamic axes for each input and output tensors for a specific model
Args:
nlp: The pipeline object holding the model to be exported
framework: The framework identifier to dispatch to the correct inference scheme (pt/tf)
Returns:
- List of the inferred input variable names
- List of the inferred output variable names
- Dictionary with input/output variables names as key and shape tensor as value
- a BatchEncoding reference which was used to infer all the above information
"""
def build_shape_dict(name: str, tensor, is_input: bool, seq_len: int):
if isinstance(tensor, (tuple, list)):
return [build_shape_dict(name, t, is_input, seq_len) for t in tensor]
else:
# Let's assume batch is the first axis with only 1 element (~~ might not be always true ...)
axes = {[axis for axis, numel in enumerate(tensor.shape) if numel == 1][0]: "batch"}
if is_input:
if len(tensor.shape) == 2:
axes[1] = "sequence"
else:
raise ValueError(f"Unable to infer tensor axes ({len(tensor.shape)})")
else:
seq_axes = [dim for dim, shape in enumerate(tensor.shape) if shape == seq_len]
axes.update({dim: "sequence" for dim in seq_axes})
print(f"Found {'input' if is_input else 'output'} {name} with shape: {axes}")
return axes
tokens = nlp.tokenizer("This is a sample output", return_tensors=framework)
seq_len = tokens.input_ids.shape[-1]
outputs = nlp.model(**tokens) if framework == "pt" else nlp.model(tokens)
if isinstance(outputs, ModelOutput):
outputs = outputs.to_tuple()
if not isinstance(outputs, (list, tuple)):
outputs = (outputs,)
# Generate input names & axes
input_vars = list(tokens.keys())
input_dynamic_axes = {k: build_shape_dict(k, v, True, seq_len) for k, v in tokens.items()}
# flatten potentially grouped outputs (past for gpt2, attentions)
outputs_flat = []
for output in outputs:
if isinstance(output, (tuple, list)):
outputs_flat.extend(output)
else:
outputs_flat.append(output)
# Generate output names & axes
output_names = [f"output_{i}" for i in range(len(outputs_flat))]
output_dynamic_axes = {k: build_shape_dict(k, v, False, seq_len) for k, v in zip(output_names, outputs_flat)}
# Create the aggregated axes representation
dynamic_axes = dict(input_dynamic_axes, **output_dynamic_axes)
return input_vars, output_names, dynamic_axes, tokens
def load_graph_from_args(
pipeline_name: str, framework: str, model: str, tokenizer: Optional[str] = None, **models_kwargs
) -> Pipeline:
"""
Convert the set of arguments provided through the CLI to an actual pipeline reference (tokenizer + model
Args:
pipeline_name: The kind of pipeline to use (ner, question-answering, etc.)
framework: The actual model to convert the pipeline from ("pt" or "tf")
model: The model name which will be loaded by the pipeline
tokenizer: The tokenizer name which will be loaded by the pipeline, default to the model's value
Returns: Pipeline object
"""
# If no tokenizer provided
if tokenizer is None:
tokenizer = model
# Check the wanted framework is available
if framework == "pt" and not is_torch_available():
raise Exception("Cannot convert because PyTorch is not installed. Please install torch first.")
if framework == "tf" and not is_tf_available():
raise Exception("Cannot convert because TF is not installed. Please install tensorflow first.")
print(f"Loading pipeline (model: {model}, tokenizer: {tokenizer})")
# Allocate tokenizer and model
return pipeline(pipeline_name, model=model, tokenizer=tokenizer, framework=framework, model_kwargs=models_kwargs)
def convert_pytorch(nlp: Pipeline, opset: int, output: Path, use_external_format: bool):
"""
Export a PyTorch backed pipeline to ONNX Intermediate Representation (IR
Args:
nlp: The pipeline to be exported
opset: The actual version of the ONNX operator set to use
output: Path where will be stored the generated ONNX model
use_external_format: Split the model definition from its parameters to allow model bigger than 2GB
Returns:
"""
if not is_torch_available():
raise Exception("Cannot convert because PyTorch is not installed. Please install torch first.")
import torch
from torch.onnx import export
print(f"Using framework PyTorch: {torch.__version__}")
with torch.no_grad():
input_names, output_names, dynamic_axes, tokens = infer_shapes(nlp, "pt")
ordered_input_names, model_args = ensure_valid_input(nlp.model, tokens, input_names)
export(
nlp.model,
model_args,
f=output.as_posix(),
input_names=ordered_input_names,
output_names=output_names,
dynamic_axes=dynamic_axes,
do_constant_folding=True,
opset_version=opset,
)
def convert_tensorflow(nlp: Pipeline, opset: int, output: Path):
"""
Export a TensorFlow backed pipeline to ONNX Intermediate Representation (IR)
Args:
nlp: The pipeline to be exported
opset: The actual version of the ONNX operator set to use
output: Path where will be stored the generated ONNX model
Notes: TensorFlow cannot export model bigger than 2GB due to internal constraint from TensorFlow
"""
if not is_tf_available():
raise Exception("Cannot convert because TF is not installed. Please install tensorflow first.")
print("/!\\ Please note TensorFlow doesn't support exporting model > 2Gb /!\\")
try:
import tensorflow as tf
import tf2onnx
from tf2onnx import __version__ as t2ov
print(f"Using framework TensorFlow: {tf.version.VERSION}, tf2onnx: {t2ov}")
# Build
input_names, output_names, dynamic_axes, tokens = infer_shapes(nlp, "tf")
# Forward
nlp.model.predict(tokens.data)
input_signature = [tf.TensorSpec.from_tensor(tensor, name=key) for key, tensor in tokens.items()]
model_proto, _ = tf2onnx.convert.from_keras(
nlp.model, input_signature, opset=opset, output_path=output.as_posix()
)
except ImportError as e:
raise Exception(
f"Cannot import {e.name} required to convert TF model to ONNX. Please install {e.name} first. {e}"
)
def convert(
framework: str,
model: str,
output: Path,
opset: int,
tokenizer: Optional[str] = None,
use_external_format: bool = False,
pipeline_name: str = "feature-extraction",
**model_kwargs,
):
"""
Convert the pipeline object to the ONNX Intermediate Representation (IR) format
Args:
framework: The framework the pipeline is backed by ("pt" or "tf")
model: The name of the model to load for the pipeline
output: The path where the ONNX graph will be stored
opset: The actual version of the ONNX operator set to use
tokenizer: The name of the model to load for the pipeline, default to the model's name if not provided
use_external_format:
Split the model definition from its parameters to allow model bigger than 2GB (PyTorch only)
pipeline_name: The kind of pipeline to instantiate (ner, question-answering, etc.)
model_kwargs: Keyword arguments to be forwarded to the model constructor
Returns:
"""
warnings.warn(
"The `transformers.convert_graph_to_onnx` package is deprecated and will be removed in version 5 of"
" Transformers",
FutureWarning,
)
print(f"ONNX opset version set to: {opset}")
# Load the pipeline
nlp = load_graph_from_args(pipeline_name, framework, model, tokenizer, **model_kwargs)
if not output.parent.exists():
print(f"Creating folder {output.parent}")
makedirs(output.parent.as_posix())
elif len(listdir(output.parent.as_posix())) > 0:
raise Exception(f"Folder {output.parent.as_posix()} is not empty, aborting conversion")
# Export the graph
if framework == "pt":
convert_pytorch(nlp, opset, output, use_external_format)
else:
convert_tensorflow(nlp, opset, output)
def optimize(onnx_model_path: Path) -> Path:
"""
Load the model at the specified path and let onnxruntime look at transformations on the graph to enable all the
optimizations possible
Args:
onnx_model_path: filepath where the model binary description is stored
Returns: Path where the optimized model binary description has been saved
"""
from onnxruntime import InferenceSession, SessionOptions
# Generate model name with suffix "optimized"
opt_model_path = generate_identified_filename(onnx_model_path, "-optimized")
sess_option = SessionOptions()
sess_option.optimized_model_filepath = opt_model_path.as_posix()
_ = InferenceSession(onnx_model_path.as_posix(), sess_option)
print(f"Optimized model has been written at {opt_model_path}: \N{heavy check mark}")
print("/!\\ Optimized model contains hardware specific operators which might not be portable. /!\\")
return opt_model_path
def quantize(onnx_model_path: Path) -> Path:
"""
Quantize the weights of the model from float32 to in8 to allow very efficient inference on modern CPU
Args:
onnx_model_path: Path to location the exported ONNX model is stored
Returns: The Path generated for the quantized
"""
import onnx
import onnxruntime
from onnx.onnx_pb import ModelProto
from onnxruntime.quantization import QuantizationMode
from onnxruntime.quantization.onnx_quantizer import ONNXQuantizer
from onnxruntime.quantization.registry import IntegerOpsRegistry
# Load the ONNX model
onnx_model = onnx.load(onnx_model_path.as_posix())
if parse(onnx.__version__) < parse("1.5.0"):
print(
"Models larger than 2GB will fail to quantize due to protobuf constraint.\n"
"Please upgrade to onnxruntime >= 1.5.0."
)
# Copy it
copy_model = ModelProto()
copy_model.CopyFrom(onnx_model)
# Construct quantizer
# onnxruntime renamed input_qType to activation_qType in v1.13.1, so we
# check the onnxruntime version to ensure backward compatibility.
# See also: https://github.com/microsoft/onnxruntime/pull/12873
if parse(onnxruntime.__version__) < parse("1.13.1"):
quantizer = ONNXQuantizer(
model=copy_model,
per_channel=False,
reduce_range=False,
mode=QuantizationMode.IntegerOps,
static=False,
weight_qType=True,
input_qType=False,
tensors_range=None,
nodes_to_quantize=None,
nodes_to_exclude=None,
op_types_to_quantize=list(IntegerOpsRegistry),
)
else:
quantizer = ONNXQuantizer(
model=copy_model,
per_channel=False,
reduce_range=False,
mode=QuantizationMode.IntegerOps,
static=False,
weight_qType=True,
activation_qType=False,
tensors_range=None,
nodes_to_quantize=None,
nodes_to_exclude=None,
op_types_to_quantize=list(IntegerOpsRegistry),
)
# Quantize and export
quantizer.quantize_model()
# Append "-quantized" at the end of the model's name
quantized_model_path = generate_identified_filename(onnx_model_path, "-quantized")
# Save model
print(f"Quantized model has been written at {quantized_model_path}: \N{heavy check mark}")
onnx.save_model(quantizer.model.model, quantized_model_path.as_posix())
return quantized_model_path
def verify(path: Path):
from onnxruntime import InferenceSession, SessionOptions
from onnxruntime.capi.onnxruntime_pybind11_state import RuntimeException
print(f"Checking ONNX model loading from: {path} ...")
try:
onnx_options = SessionOptions()
_ = InferenceSession(path.as_posix(), onnx_options, providers=["CPUExecutionProvider"])
print(f"Model {path} correctly loaded: \N{heavy check mark}")
except RuntimeException as re:
print(f"Error while loading the model {re}: \N{heavy ballot x}")
if __name__ == "__main__":
parser = OnnxConverterArgumentParser()
args = parser.parse_args()
# Make sure output is absolute path
args.output = Path(args.output).absolute()
try:
print("\n====== Converting model to ONNX ======")
# Convert
convert(
args.framework,
args.model,
args.output,
args.opset,
args.tokenizer,
args.use_external_format,
args.pipeline,
)
if args.quantize:
# Ensure requirements for quantization on onnxruntime is met
check_onnxruntime_requirements(ORT_QUANTIZE_MINIMUM_VERSION)
# onnxruntime optimizations doesn't provide the same level of performances on TensorFlow than PyTorch
if args.framework == "tf":
print(
"\t Using TensorFlow might not provide the same optimization level compared to PyTorch.\n"
"\t For TensorFlow users you can try optimizing the model directly through onnxruntime_tools.\n"
"\t For more information, please refer to the onnxruntime documentation:\n"
"\t\thttps://github.com/microsoft/onnxruntime/tree/master/onnxruntime/python/tools/transformers\n"
)
print("\n====== Optimizing ONNX model ======")
# Quantization works best when using the optimized version of the model
args.optimized_output = optimize(args.output)
# Do the quantization on the right graph
args.quantized_output = quantize(args.optimized_output)
# And verify
if args.check_loading:
print("\n====== Check exported ONNX model(s) ======")
verify(args.output)
if hasattr(args, "optimized_output"):
verify(args.optimized_output)
if hasattr(args, "quantized_output"):
verify(args.quantized_output)
except Exception as e:
print(f"Error while converting the model: {e}")
exit(1)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_utils.py | # coding=utf-8
# Copyright 2018 The Google AI Language Team Authors, Facebook AI Research authors and The HuggingFace Inc. team.
# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import collections
import copy
import functools
import gc
import importlib.metadata
import inspect
import itertools
import json
import os
import re
import shutil
import tempfile
import warnings
from contextlib import contextmanager
from dataclasses import dataclass
from functools import partial, wraps
from threading import Thread
from typing import Any, Callable, Dict, List, Optional, Set, Tuple, Union
from zipfile import is_zipfile
import torch
from packaging import version
from torch import Tensor, nn
from torch.nn import CrossEntropyLoss, Identity
from torch.utils.checkpoint import checkpoint
from .activations import get_activation
from .configuration_utils import PretrainedConfig
from .dynamic_module_utils import custom_object_save
from .generation import GenerationConfig, GenerationMixin
from .integrations import PeftAdapterMixin, deepspeed_config, is_deepspeed_zero3_enabled
from .pytorch_utils import ( # noqa: F401
Conv1D,
apply_chunking_to_forward,
find_pruneable_heads_and_indices,
id_tensor_storage,
is_torch_greater_or_equal_than_1_13,
prune_conv1d_layer,
prune_layer,
prune_linear_layer,
)
from .quantizers import AutoHfQuantizer, HfQuantizer
from .quantizers.quantizers_utils import get_module_from_name
from .safetensors_conversion import auto_conversion
from .utils import (
ADAPTER_SAFE_WEIGHTS_NAME,
ADAPTER_WEIGHTS_NAME,
CONFIG_NAME,
DUMMY_INPUTS,
FLAX_WEIGHTS_NAME,
SAFE_WEIGHTS_INDEX_NAME,
SAFE_WEIGHTS_NAME,
TF2_WEIGHTS_NAME,
TF_WEIGHTS_NAME,
WEIGHTS_INDEX_NAME,
WEIGHTS_NAME,
ContextManagers,
ModelOutput,
PushToHubMixin,
cached_file,
copy_func,
download_url,
extract_commit_hash,
has_file,
is_accelerate_available,
is_bitsandbytes_available,
is_flash_attn_2_available,
is_offline_mode,
is_optimum_available,
is_peft_available,
is_remote_url,
is_safetensors_available,
is_torch_sdpa_available,
is_torch_xla_available,
logging,
replace_return_docstrings,
strtobool,
)
from .utils.hub import convert_file_size_to_int, create_and_tag_model_card, get_checkpoint_shard_files
from .utils.import_utils import (
ENV_VARS_TRUE_VALUES,
is_sagemaker_mp_enabled,
is_torch_fx_proxy,
is_torchdynamo_compiling,
)
from .utils.quantization_config import BitsAndBytesConfig, QuantizationMethod
XLA_USE_BF16 = os.environ.get("XLA_USE_BF16", "0").upper()
XLA_DOWNCAST_BF16 = os.environ.get("XLA_DOWNCAST_BF16", "0").upper()
if is_accelerate_available():
from accelerate import dispatch_model, infer_auto_device_map, init_empty_weights
from accelerate.hooks import add_hook_to_module
from accelerate.utils import (
check_tied_parameters_on_same_device,
extract_model_from_parallel,
find_tied_parameters,
get_balanced_memory,
get_max_memory,
load_offloaded_weights,
offload_weight,
save_offload_index,
set_module_tensor_to_device,
)
if is_safetensors_available():
from safetensors import safe_open
from safetensors.torch import load_file as safe_load_file
from safetensors.torch import save_file as safe_save_file
logger = logging.get_logger(__name__)
_init_weights = True
def is_fsdp_enabled():
return (
torch.distributed.is_available()
and torch.distributed.is_initialized()
and strtobool(os.environ.get("ACCELERATE_USE_FSDP", "False")) == 1
and strtobool(os.environ.get("FSDP_CPU_RAM_EFFICIENT_LOADING", "False")) == 1
)
def is_local_dist_rank_0():
return (
torch.distributed.is_available()
and torch.distributed.is_initialized()
and int(os.environ.get("LOCAL_RANK", -1)) == 0
)
if is_sagemaker_mp_enabled():
import smdistributed.modelparallel.torch as smp
from smdistributed.modelparallel import __version__ as SMP_VERSION
IS_SAGEMAKER_MP_POST_1_10 = version.parse(SMP_VERSION) >= version.parse("1.10")
else:
IS_SAGEMAKER_MP_POST_1_10 = False
if is_peft_available():
from .utils import find_adapter_config_file
TORCH_INIT_FUNCTIONS = {
"uniform_": nn.init.uniform_,
"normal_": nn.init.normal_,
"trunc_normal_": nn.init.trunc_normal_,
"constant_": nn.init.constant_,
"xavier_uniform_": nn.init.xavier_uniform_,
"xavier_normal_": nn.init.xavier_normal_,
"kaiming_uniform_": nn.init.kaiming_uniform_,
"kaiming_normal_": nn.init.kaiming_normal_,
"uniform": nn.init.uniform,
"normal": nn.init.normal,
"xavier_uniform": nn.init.xavier_uniform,
"xavier_normal": nn.init.xavier_normal,
"kaiming_uniform": nn.init.kaiming_uniform,
"kaiming_normal": nn.init.kaiming_normal,
}
@contextmanager
def no_init_weights(_enable=True):
"""
Context manager to globally disable weight initialization to speed up loading large models.
TODO(Patrick): Delete safety argument `_enable=True` at next major version. .
"""
global _init_weights
old_init_weights = _init_weights
if _enable:
_init_weights = False
def _skip_init(*args, **kwargs):
pass
# # Save the original initialization functions
for name, init_func in TORCH_INIT_FUNCTIONS.items():
setattr(torch.nn.init, name, _skip_init)
try:
yield
finally:
_init_weights = old_init_weights
if _enable:
# # Restore the original initialization functions
for name, init_func in TORCH_INIT_FUNCTIONS.items():
setattr(torch.nn.init, name, init_func)
def get_parameter_device(parameter: Union[nn.Module, GenerationMixin, "ModuleUtilsMixin"]):
try:
return next(parameter.parameters()).device
except StopIteration:
# For nn.DataParallel compatibility in PyTorch 1.5
def find_tensor_attributes(module: nn.Module) -> List[Tuple[str, Tensor]]:
tuples = [(k, v) for k, v in module.__dict__.items() if torch.is_tensor(v)]
return tuples
gen = parameter._named_members(get_members_fn=find_tensor_attributes)
first_tuple = next(gen)
return first_tuple[1].device
def get_first_parameter_dtype(parameter: Union[nn.Module, GenerationMixin, "ModuleUtilsMixin"]):
"""
Returns the first parameter dtype (can be non-floating) or asserts if none were found.
"""
try:
return next(parameter.parameters()).dtype
except StopIteration:
# For nn.DataParallel compatibility in PyTorch > 1.5
def find_tensor_attributes(module: nn.Module) -> List[Tuple[str, Tensor]]:
tuples = [(k, v) for k, v in module.__dict__.items() if torch.is_tensor(v)]
return tuples
gen = parameter._named_members(get_members_fn=find_tensor_attributes)
first_tuple = next(gen)
return first_tuple[1].dtype
def get_parameter_dtype(parameter: Union[nn.Module, GenerationMixin, "ModuleUtilsMixin"]):
"""
Returns the first found floating dtype in parameters if there is one, otherwise returns the last dtype it found.
"""
last_dtype = None
for t in parameter.parameters():
last_dtype = t.dtype
if t.is_floating_point():
# Adding fix for https://github.com/pytorch/xla/issues/4152
# Fixes issue where the model code passes a value that is out of range for XLA_USE_BF16=1
# and XLA_DOWNCAST_BF16=1 so the conversion would cast it to -inf
# NOTE: `is_torch_xla_available()` is checked last as it induces a graph break in torch dynamo
if XLA_USE_BF16 in ENV_VARS_TRUE_VALUES and is_torch_xla_available():
return torch.bfloat16
if XLA_DOWNCAST_BF16 in ENV_VARS_TRUE_VALUES and is_torch_xla_available():
if t.dtype == torch.float:
return torch.bfloat16
if t.dtype == torch.double:
return torch.float32
return t.dtype
if last_dtype is not None:
# if no floating dtype was found return whatever the first dtype is
return last_dtype
# For nn.DataParallel compatibility in PyTorch > 1.5
def find_tensor_attributes(module: nn.Module) -> List[Tuple[str, Tensor]]:
tuples = [(k, v) for k, v in module.__dict__.items() if torch.is_tensor(v)]
return tuples
gen = parameter._named_members(get_members_fn=find_tensor_attributes)
last_tuple = None
for tuple in gen:
last_tuple = tuple
if tuple[1].is_floating_point():
return tuple[1].dtype
if last_tuple is not None:
# fallback to the last dtype
return last_tuple[1].dtype
# fallback to buffer dtype
for t in parameter.buffers():
last_dtype = t.dtype
if t.is_floating_point():
return t.dtype
return last_dtype
def get_state_dict_float_dtype(state_dict):
"""
Returns the first found floating dtype in `state_dict` or asserts if none were found.
"""
for t in state_dict.values():
if t.is_floating_point():
return t.dtype
raise ValueError("couldn't find any floating point dtypes in state_dict")
def get_state_dict_dtype(state_dict):
"""
Returns the first found floating dtype in `state_dict` if there is one, otherwise returns the first dtype.
"""
for t in state_dict.values():
if t.is_floating_point():
return t.dtype
# if no floating dtype was found return whatever the first dtype is
else:
return next(state_dict.values()).dtype
def dtype_byte_size(dtype):
"""
Returns the size (in bytes) occupied by one parameter of type `dtype`.
Example:
```py
>>> dtype_byte_size(torch.float32)
4
```
"""
if dtype == torch.bool:
return 1 / 8
bit_search = re.search(r"[^\d](\d+)_?", str(dtype))
if bit_search is None:
raise ValueError(f"`dtype` is not a valid dtype: {dtype}.")
bit_size = int(bit_search.groups()[0])
return bit_size // 8
def shard_checkpoint(
state_dict: Dict[str, torch.Tensor], max_shard_size: Union[int, str] = "10GB", weights_name: str = WEIGHTS_NAME
):
"""
Splits a model state dictionary in sub-checkpoints so that the final size of each sub-checkpoint does not exceed a
given size.
The sub-checkpoints are determined by iterating through the `state_dict` in the order of its keys, so there is no
optimization made to make each sub-checkpoint as close as possible to the maximum size passed. For example, if the
limit is 10GB and we have weights of sizes [6GB, 6GB, 2GB, 6GB, 2GB, 2GB] they will get sharded as [6GB], [6+2GB],
[6+2+2GB] and not [6+2+2GB], [6+2GB], [6GB].
<Tip warning={true}>
If one of the model's weight is bigger than `max_shard_size`, it will end up in its own sub-checkpoint which will
have a size greater than `max_shard_size`.
</Tip>
Args:
state_dict (`Dict[str, torch.Tensor]`): The state dictionary of a model to save.
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
The maximum size of each sub-checkpoint. If expressed as a string, needs to be digits followed by a unit
(like `"5MB"`).
weights_name (`str`, *optional*, defaults to `"pytorch_model.bin"`):
The name of the model save file.
"""
max_shard_size = convert_file_size_to_int(max_shard_size)
sharded_state_dicts = [{}]
last_block_size = 0
total_size = 0
storage_id_to_block = {}
for key, weight in state_dict.items():
# when bnb serialization is used the weights in the state dict can be strings
# check: https://github.com/huggingface/transformers/pull/24416 for more details
if isinstance(weight, str):
continue
else:
storage_id = id_tensor_storage(weight)
# If a `weight` shares the same underlying storage as another tensor, we put `weight` in the same `block`
if storage_id in storage_id_to_block:
block_id = storage_id_to_block[storage_id]
sharded_state_dicts[block_id][key] = weight
continue
weight_size = weight.numel() * dtype_byte_size(weight.dtype)
# If this weight is going to tip up over the maximal size, we split, but only if we have put at least one
# weight in the current shard.
if last_block_size + weight_size > max_shard_size and len(sharded_state_dicts[-1]) > 0:
sharded_state_dicts.append({})
last_block_size = 0
sharded_state_dicts[-1][key] = weight
last_block_size += weight_size
total_size += weight_size
storage_id_to_block[storage_id] = len(sharded_state_dicts) - 1
# If we only have one shard, we return it
if len(sharded_state_dicts) == 1:
return {weights_name: sharded_state_dicts[0]}, None
# Otherwise, let's build the index
weight_map = {}
shards = {}
for idx, shard in enumerate(sharded_state_dicts):
shard_file = weights_name.replace(".bin", f"-{idx+1:05d}-of-{len(sharded_state_dicts):05d}.bin")
shard_file = shard_file.replace(
".safetensors", f"-{idx + 1:05d}-of-{len(sharded_state_dicts):05d}.safetensors"
)
shards[shard_file] = shard
for key in shard.keys():
weight_map[key] = shard_file
# Add the metadata
metadata = {"total_size": total_size}
index = {"metadata": metadata, "weight_map": weight_map}
return shards, index
def load_sharded_checkpoint(model, folder, strict=True, prefer_safe=True):
"""
This is the same as
[`torch.nn.Module.load_state_dict`](https://pytorch.org/docs/stable/generated/torch.nn.Module.html?highlight=load_state_dict#torch.nn.Module.load_state_dict)
but for a sharded checkpoint.
This load is performed efficiently: each checkpoint shard is loaded one by one in RAM and deleted after being
loaded in the model.
Args:
model (`torch.nn.Module`): The model in which to load the checkpoint.
folder (`str` or `os.PathLike`): A path to a folder containing the sharded checkpoint.
strict (`bool`, *optional`, defaults to `True`):
Whether to strictly enforce that the keys in the model state dict match the keys in the sharded checkpoint.
prefer_safe (`bool`, *optional*, defaults to `False`)
If both safetensors and PyTorch save files are present in checkpoint and `prefer_safe` is True, the
safetensors files will be loaded. Otherwise, PyTorch files are always loaded when possible.
Returns:
`NamedTuple`: A named tuple with `missing_keys` and `unexpected_keys` fields
- `missing_keys` is a list of str containing the missing keys
- `unexpected_keys` is a list of str containing the unexpected keys
"""
# Load the index
index_file = os.path.join(folder, WEIGHTS_INDEX_NAME)
safe_index_file = os.path.join(folder, SAFE_WEIGHTS_INDEX_NAME)
index_present = os.path.isfile(index_file)
safe_index_present = os.path.isfile(safe_index_file)
if not index_present and not (safe_index_present and is_safetensors_available()):
filenames = (
(WEIGHTS_INDEX_NAME, SAFE_WEIGHTS_INDEX_NAME) if is_safetensors_available() else (WEIGHTS_INDEX_NAME,)
)
raise ValueError(f"Can't find a checkpoint index ({' or '.join(filenames)}) in {folder}.")
load_safe = False
if safe_index_present:
if prefer_safe:
if is_safetensors_available():
load_safe = True # load safe due to preference
else:
logger.warning(
f"Cannot load sharded checkpoint at {folder} safely since safetensors is not installed!"
)
elif not index_present:
load_safe = True # load safe since we have no other choice
load_index = safe_index_file if load_safe else index_file
with open(load_index, "r", encoding="utf-8") as f:
index = json.load(f)
shard_files = list(set(index["weight_map"].values()))
# If strict=True, error before loading any of the state dicts.
loaded_keys = index["weight_map"].keys()
model_keys = model.state_dict().keys()
missing_keys = [key for key in model_keys if key not in loaded_keys]
unexpected_keys = [key for key in loaded_keys if key not in model_keys]
if strict and (len(missing_keys) > 0 or len(unexpected_keys) > 0):
error_message = f"Error(s) in loading state_dict for {model.__class__.__name__}"
if len(missing_keys) > 0:
str_missing_keys = ",".join([f'"{k}"' for k in missing_keys])
error_message += f"\nMissing key(s): {str_missing_keys}."
if len(unexpected_keys) > 0:
str_unexpected_keys = ",".join([f'"{k}"' for k in unexpected_keys])
error_message += f"\nMissing key(s): {str_unexpected_keys}."
raise RuntimeError(error_message)
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
loader = safe_load_file if load_safe else partial(torch.load, map_location="cpu", **weights_only_kwarg)
for shard_file in shard_files:
state_dict = loader(os.path.join(folder, shard_file))
model.load_state_dict(state_dict, strict=False)
# Make sure memory is freed before we load the next state dict.
del state_dict
gc.collect()
# Return the same thing as PyTorch load_state_dict function.
return torch.nn.modules.module._IncompatibleKeys(missing_keys, unexpected_keys)
def load_state_dict(checkpoint_file: Union[str, os.PathLike], is_quantized: bool = False):
"""
Reads a PyTorch checkpoint file, returning properly formatted errors if they arise.
"""
if checkpoint_file.endswith(".safetensors") and is_safetensors_available():
# Check format of the archive
with safe_open(checkpoint_file, framework="pt") as f:
metadata = f.metadata()
if metadata.get("format") not in ["pt", "tf", "flax", "mlx"]:
raise OSError(
f"The safetensors archive passed at {checkpoint_file} does not contain the valid metadata. Make sure "
"you save your model with the `save_pretrained` method."
)
return safe_load_file(checkpoint_file)
try:
if (
(is_deepspeed_zero3_enabled() and torch.distributed.is_initialized() and torch.distributed.get_rank() > 0)
or (is_fsdp_enabled() and not is_local_dist_rank_0())
) and not is_quantized:
map_location = "meta"
else:
map_location = "cpu"
extra_args = {}
# mmap can only be used with files serialized with zipfile-based format.
if (
isinstance(checkpoint_file, str)
and map_location != "meta"
and version.parse(torch.__version__) >= version.parse("2.1.0")
and is_zipfile(checkpoint_file)
):
extra_args = {"mmap": True}
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
return torch.load(
checkpoint_file,
map_location=map_location,
**weights_only_kwarg,
**extra_args,
)
except Exception as e:
try:
with open(checkpoint_file) as f:
if f.read(7) == "version":
raise OSError(
"You seem to have cloned a repository without having git-lfs installed. Please install "
"git-lfs and run `git lfs install` followed by `git lfs pull` in the folder "
"you cloned."
)
else:
raise ValueError(
f"Unable to locate the file {checkpoint_file} which is necessary to load this pretrained "
"model. Make sure you have saved the model properly."
) from e
except (UnicodeDecodeError, ValueError):
raise OSError(
f"Unable to load weights from pytorch checkpoint file for '{checkpoint_file}' "
f"at '{checkpoint_file}'. "
"If you tried to load a PyTorch model from a TF 2.0 checkpoint, please set from_tf=True."
)
def set_initialized_submodules(model, state_dict_keys):
"""
Sets the `_is_hf_initialized` flag in all submodules of a given model when all its weights are in the loaded state
dict.
"""
not_initialized_submodules = {}
for module_name, module in model.named_modules():
loaded_keys = {k.replace(f"{module_name}.", "") for k in state_dict_keys if k.startswith(f"{module_name}.")}
if loaded_keys.issuperset(module.state_dict()):
module._is_hf_initialized = True
else:
not_initialized_submodules[module_name] = module
return not_initialized_submodules
def _end_ptr(tensor: torch.Tensor) -> int:
# extract the end of the pointer if the tensor is a slice of a bigger tensor
if tensor.nelement():
stop = tensor.view(-1)[-1].data_ptr() + tensor.element_size()
else:
stop = tensor.data_ptr()
return stop
def _get_tied_weight_keys(module: nn.Module, prefix=""):
tied_weight_keys = []
if getattr(module, "_tied_weights_keys", None) is not None:
names = [f"{prefix}.{k}" if prefix else k for k in module._tied_weights_keys]
tied_weight_keys.extend(names)
if getattr(module, "_dynamic_tied_weights_keys", None) is not None:
names = [f"{prefix}.{k}" if prefix else k for k in module._dynamic_tied_weights_keys]
tied_weight_keys.extend(names)
for name, submodule in module.named_children():
local_prefix = f"{prefix}.{name}" if prefix else name
tied_weight_keys.extend(_get_tied_weight_keys(submodule, prefix=local_prefix))
return tied_weight_keys
def _find_disjoint(tensors: List[Set[str]], state_dict: Dict[str, torch.Tensor]) -> Tuple[List[Set[str]], List[str]]:
filtered_tensors = []
for shared in tensors:
if len(shared) < 2:
filtered_tensors.append(shared)
continue
areas = []
for name in shared:
tensor = state_dict[name]
areas.append((tensor.data_ptr(), _end_ptr(tensor), name))
areas.sort()
_, last_stop, last_name = areas[0]
filtered_tensors.append({last_name})
for start, stop, name in areas[1:]:
if start >= last_stop:
filtered_tensors.append({name})
else:
filtered_tensors[-1].add(name)
last_stop = stop
disjoint_tensors = []
shared_tensors = []
for tensors in filtered_tensors:
if len(tensors) == 1:
disjoint_tensors.append(tensors.pop())
else:
shared_tensors.append(tensors)
return shared_tensors, disjoint_tensors
def _find_identical(tensors: List[Set[str]], state_dict: Dict[str, torch.Tensor]) -> Tuple[List[Set[str]], Set[str]]:
shared_tensors = []
identical = []
for shared in tensors:
if len(shared) < 2:
continue
areas = collections.defaultdict(set)
for name in shared:
tensor = state_dict[name]
area = (tensor.device, tensor.data_ptr(), _end_ptr(tensor))
areas[area].add(name)
if len(areas) == 1:
identical.append(shared)
else:
shared_tensors.append(shared)
return shared_tensors, identical
def _load_state_dict_into_model(model_to_load, state_dict, start_prefix):
# Convert old format to new format if needed from a PyTorch state_dict
old_keys = []
new_keys = []
for key in state_dict.keys():
new_key = None
if "gamma" in key:
new_key = key.replace("gamma", "weight")
if "beta" in key:
new_key = key.replace("beta", "bias")
if new_key:
old_keys.append(key)
new_keys.append(new_key)
for old_key, new_key in zip(old_keys, new_keys):
state_dict[new_key] = state_dict.pop(old_key)
# copy state_dict so _load_from_state_dict can modify it
metadata = getattr(state_dict, "_metadata", None)
state_dict = state_dict.copy()
if metadata is not None:
state_dict._metadata = metadata
error_msgs = []
# PyTorch's `_load_from_state_dict` does not copy parameters in a module's descendants
# so we need to apply the function recursively.
def load(module: nn.Module, state_dict, prefix=""):
local_metadata = {} if metadata is None else metadata.get(prefix[:-1], {})
args = (state_dict, prefix, local_metadata, True, [], [], error_msgs)
# Parameters of module and children will start with prefix. We can exit early if there are none in this
# state_dict
if len([key for key in state_dict if key.startswith(prefix)]) > 0:
if is_deepspeed_zero3_enabled():
import deepspeed
# In sharded models, each shard has only part of the full state_dict, so only gather
# parameters that are in the current state_dict.
named_parameters = dict(module.named_parameters(prefix=prefix[:-1], recurse=False))
params_to_gather = [named_parameters[k] for k in state_dict.keys() if k in named_parameters]
if len(params_to_gather) > 0:
# because zero3 puts placeholders in model params, this context
# manager gathers (unpartitions) the params of the current layer, then loads from
# the state dict and then re-partitions them again
with deepspeed.zero.GatheredParameters(params_to_gather, modifier_rank=0):
if torch.distributed.get_rank() == 0:
module._load_from_state_dict(*args)
else:
module._load_from_state_dict(*args)
for name, child in module._modules.items():
if child is not None:
load(child, state_dict, prefix + name + ".")
load(model_to_load, state_dict, prefix=start_prefix)
# Delete `state_dict` so it could be collected by GC earlier. Note that `state_dict` is a copy of the argument, so
# it's safe to delete it.
del state_dict
return error_msgs
def find_submodule_and_param_name(model, long_key, start_prefix):
"""
A helper util to find the last sub-module and the param/buffer name. If `start_prefix` is supplied it'll be removed
from the start of the key
"""
if len(start_prefix) > 0 and long_key.startswith(start_prefix):
long_key = ".".join(long_key.split(".")[1:])
split_key = long_key.split(".")
submodule = model
while len(split_key) > 1:
if hasattr(submodule, split_key[0]):
submodule = getattr(submodule, split_key[0])
del split_key[0]
else:
submodule = None
break
if submodule == model:
submodule = None
return submodule, split_key[0]
def _move_model_to_meta(model, loaded_state_dict_keys, start_prefix):
"""
Moves `loaded_state_dict_keys` in model to meta device which frees up the memory taken by those params.
`start_prefix` is used for models which insert their name into model keys, e.g. `bert` in
`bert.pooler.dense.weight`
"""
# dematerialize param storage for keys that are going to be replaced by state_dict, by
# putting those on the meta device
for k in loaded_state_dict_keys:
submodule, param_name = find_submodule_and_param_name(model, k, start_prefix)
if submodule is not None:
# selectively switch to the meta device only those params/buffers that will
# be next replaced from state_dict. This a complex way to do p.to_("meta")
# since we have no in-place to_ for tensors.
new_val = getattr(submodule, param_name)
if isinstance(new_val, torch.nn.Parameter):
# isinstance returns False for Params on meta device, so switch after the check
new_val = torch.nn.Parameter(new_val.to("meta"))
else:
new_val = new_val.to("meta")
setattr(submodule, param_name, new_val)
def _load_state_dict_into_meta_model(
model,
state_dict,
loaded_state_dict_keys, # left for now but could be removed, see below
start_prefix,
expected_keys,
device_map=None,
offload_folder=None,
offload_index=None,
state_dict_folder=None,
state_dict_index=None,
dtype=None,
hf_quantizer=None,
is_safetensors=False,
keep_in_fp32_modules=None,
unexpected_keys=None, # passing `unexpected` for cleanup from quantization items
):
"""
This is somewhat similar to `_load_state_dict_into_model`, but deals with a model that has some or all of its
params on a `meta` device. It replaces the model params with the data from the `state_dict`, while moving the
params back to the normal device, but only for `loaded_state_dict_keys`.
`start_prefix` is used for models which insert their name into model keys, e.g. `bert` in
`bert.pooler.dense.weight`
"""
# XXX: remaining features to implement to be fully compatible with _load_state_dict_into_model
# - deepspeed zero 3 support
# - need to copy metadata if any - see _load_state_dict_into_model
# - handling error_msgs - mimicking the error handling in module._load_from_state_dict()
# - Is there a situation where some keys aren't in `loaded_state_dict_keys` and in which case
# they won't get loaded.
error_msgs = []
old_keys = []
new_keys = []
is_quantized = hf_quantizer is not None
for key in state_dict.keys():
new_key = None
if "gamma" in key:
new_key = key.replace("gamma", "weight")
if "beta" in key:
new_key = key.replace("beta", "bias")
if new_key:
old_keys.append(key)
new_keys.append(new_key)
for old_key, new_key in zip(old_keys, new_keys):
state_dict[new_key] = state_dict.pop(old_key)
for param_name, param in state_dict.items():
# First part of the test is always true as load_state_dict_keys always contains state_dict keys.
if param_name not in loaded_state_dict_keys or param_name not in expected_keys:
continue
if param_name.startswith(start_prefix):
param_name = param_name[len(start_prefix) :]
module_name = param_name
set_module_kwargs = {}
# We convert floating dtypes to the `dtype` passed. We want to keep the buffers/params
# in int/uint/bool and not cast them.
if dtype is not None and torch.is_floating_point(param):
if (
keep_in_fp32_modules is not None
and any(
module_to_keep_in_fp32 in param_name.split(".") for module_to_keep_in_fp32 in keep_in_fp32_modules
)
and dtype == torch.float16
):
param = param.to(torch.float32)
# For backward compatibility with older versions of `accelerate`
# TODO: @sgugger replace this check with version check at the next `accelerate` release
if "dtype" in list(inspect.signature(set_module_tensor_to_device).parameters):
set_module_kwargs["dtype"] = torch.float32
else:
param = param.to(dtype)
# For compatibility with PyTorch load_state_dict which converts state dict dtype to existing dtype in model, and which
# uses `param.copy_(input_param)` that preserves the contiguity of the parameter in the model.
# Reference: https://github.com/pytorch/pytorch/blob/db79ceb110f6646523019a59bbd7b838f43d4a86/torch/nn/modules/module.py#L2040C29-L2040C29
old_param = model
splits = param_name.split(".")
for split in splits:
old_param = getattr(old_param, split)
if old_param is None:
break
if old_param is not None:
if dtype is None:
param = param.to(old_param.dtype)
if old_param.is_contiguous():
param = param.contiguous()
set_module_kwargs["value"] = param
if device_map is None:
param_device = "cpu"
else:
# find next higher level module that is defined in device_map:
# bert.lm_head.weight -> bert.lm_head -> bert -> ''
while len(module_name) > 0 and module_name not in device_map:
module_name = ".".join(module_name.split(".")[:-1])
if module_name == "" and "" not in device_map:
# TODO: group all errors and raise at the end.
raise ValueError(f"{param_name} doesn't have any device set.")
param_device = device_map[module_name]
if param_device == "disk":
if not is_safetensors:
offload_index = offload_weight(param, param_name, offload_folder, offload_index)
elif param_device == "cpu" and state_dict_index is not None:
state_dict_index = offload_weight(param, param_name, state_dict_folder, state_dict_index)
elif (
not is_quantized
or (not hf_quantizer.requires_parameters_quantization)
or (
not hf_quantizer.check_quantized_param(
model, param, param_name, state_dict, param_device=param_device, device_map=device_map
)
)
):
# For backward compatibility with older versions of `accelerate` and for non-quantized params
set_module_tensor_to_device(model, param_name, param_device, **set_module_kwargs)
else:
hf_quantizer.create_quantized_param(model, param, param_name, param_device, state_dict, unexpected_keys)
# For quantized modules with FSDP/DeepSpeed Stage 3, we need to quantize the parameter on the GPU
# and then cast it to CPU to avoid excessive memory usage on each GPU
# in comparison to the sharded model across GPUs.
if is_fsdp_enabled() or is_deepspeed_zero3_enabled():
module, tensor_name = get_module_from_name(model, param_name)
value = getattr(module, tensor_name)
value = type(value)(value.data.to("cpu"), **value.__dict__)
setattr(module, tensor_name, value)
# TODO: consider removing used param_parts from state_dict before return
return error_msgs, offload_index, state_dict_index
def _add_variant(weights_name: str, variant: Optional[str] = None) -> str:
if variant is not None:
splits = weights_name.split(".")
splits = splits[:-1] + [variant] + splits[-1:]
weights_name = ".".join(splits)
return weights_name
class ModuleUtilsMixin:
"""
A few utilities for `torch.nn.Modules`, to be used as a mixin.
"""
@staticmethod
def _hook_rss_memory_pre_forward(module, *args, **kwargs):
try:
import psutil
except ImportError:
raise ImportError("You need to install psutil (pip install psutil) to use memory tracing.")
process = psutil.Process(os.getpid())
mem = process.memory_info()
module.mem_rss_pre_forward = mem.rss
return None
@staticmethod
def _hook_rss_memory_post_forward(module, *args, **kwargs):
try:
import psutil
except ImportError:
raise ImportError("You need to install psutil (pip install psutil) to use memory tracing.")
process = psutil.Process(os.getpid())
mem = process.memory_info()
module.mem_rss_post_forward = mem.rss
mem_rss_diff = module.mem_rss_post_forward - module.mem_rss_pre_forward
module.mem_rss_diff = mem_rss_diff + (module.mem_rss_diff if hasattr(module, "mem_rss_diff") else 0)
return None
def add_memory_hooks(self):
"""
Add a memory hook before and after each sub-module forward pass to record increase in memory consumption.
Increase in memory consumption is stored in a `mem_rss_diff` attribute for each module and can be reset to zero
with `model.reset_memory_hooks_state()`.
"""
for module in self.modules():
module.register_forward_pre_hook(self._hook_rss_memory_pre_forward)
module.register_forward_hook(self._hook_rss_memory_post_forward)
self.reset_memory_hooks_state()
def reset_memory_hooks_state(self):
"""
Reset the `mem_rss_diff` attribute of each module (see [`~modeling_utils.ModuleUtilsMixin.add_memory_hooks`]).
"""
for module in self.modules():
module.mem_rss_diff = 0
module.mem_rss_post_forward = 0
module.mem_rss_pre_forward = 0
@property
def device(self) -> torch.device:
"""
`torch.device`: The device on which the module is (assuming that all the module parameters are on the same
device).
"""
return get_parameter_device(self)
@property
def dtype(self) -> torch.dtype:
"""
`torch.dtype`: The dtype of the module (assuming that all the module parameters have the same dtype).
"""
return get_parameter_dtype(self)
def invert_attention_mask(self, encoder_attention_mask: Tensor) -> Tensor:
"""
Invert an attention mask (e.g., switches 0. and 1.).
Args:
encoder_attention_mask (`torch.Tensor`): An attention mask.
Returns:
`torch.Tensor`: The inverted attention mask.
"""
if encoder_attention_mask.dim() == 3:
encoder_extended_attention_mask = encoder_attention_mask[:, None, :, :]
if encoder_attention_mask.dim() == 2:
encoder_extended_attention_mask = encoder_attention_mask[:, None, None, :]
# T5 has a mask that can compare sequence ids, we can simulate this here with this transposition
# Cf. https://github.com/tensorflow/mesh/blob/8d2465e9bc93129b913b5ccc6a59aa97abd96ec6/mesh_tensorflow
# /transformer/transformer_layers.py#L270
# encoder_extended_attention_mask = (encoder_extended_attention_mask ==
# encoder_extended_attention_mask.transpose(-1, -2))
encoder_extended_attention_mask = encoder_extended_attention_mask.to(dtype=self.dtype) # fp16 compatibility
encoder_extended_attention_mask = (1.0 - encoder_extended_attention_mask) * torch.finfo(self.dtype).min
return encoder_extended_attention_mask
@staticmethod
def create_extended_attention_mask_for_decoder(input_shape, attention_mask, device=None):
if device is not None:
warnings.warn(
"The `device` argument is deprecated and will be removed in v5 of Transformers.", FutureWarning
)
else:
device = attention_mask.device
batch_size, seq_length = input_shape
seq_ids = torch.arange(seq_length, device=device)
causal_mask = seq_ids[None, None, :].repeat(batch_size, seq_length, 1) <= seq_ids[None, :, None]
# in case past_key_values are used we need to add a prefix ones mask to the causal mask
# causal and attention masks must have same type with pytorch version < 1.3
causal_mask = causal_mask.to(attention_mask.dtype)
if causal_mask.shape[1] < attention_mask.shape[1]:
prefix_seq_len = attention_mask.shape[1] - causal_mask.shape[1]
causal_mask = torch.cat(
[
torch.ones((batch_size, seq_length, prefix_seq_len), device=device, dtype=causal_mask.dtype),
causal_mask,
],
axis=-1,
)
extended_attention_mask = causal_mask[:, None, :, :] * attention_mask[:, None, None, :]
return extended_attention_mask
def get_extended_attention_mask(
self, attention_mask: Tensor, input_shape: Tuple[int], device: torch.device = None, dtype: torch.float = None
) -> Tensor:
"""
Makes broadcastable attention and causal masks so that future and masked tokens are ignored.
Arguments:
attention_mask (`torch.Tensor`):
Mask with ones indicating tokens to attend to, zeros for tokens to ignore.
input_shape (`Tuple[int]`):
The shape of the input to the model.
Returns:
`torch.Tensor` The extended attention mask, with a the same dtype as `attention_mask.dtype`.
"""
if dtype is None:
dtype = self.dtype
if not (attention_mask.dim() == 2 and self.config.is_decoder):
# show warning only if it won't be shown in `create_extended_attention_mask_for_decoder`
if device is not None:
warnings.warn(
"The `device` argument is deprecated and will be removed in v5 of Transformers.", FutureWarning
)
# We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length]
# ourselves in which case we just need to make it broadcastable to all heads.
if attention_mask.dim() == 3:
extended_attention_mask = attention_mask[:, None, :, :]
elif attention_mask.dim() == 2:
# Provided a padding mask of dimensions [batch_size, seq_length]
# - if the model is a decoder, apply a causal mask in addition to the padding mask
# - if the model is an encoder, make the mask broadcastable to [batch_size, num_heads, seq_length, seq_length]
if self.config.is_decoder:
extended_attention_mask = ModuleUtilsMixin.create_extended_attention_mask_for_decoder(
input_shape, attention_mask, device
)
else:
extended_attention_mask = attention_mask[:, None, None, :]
else:
raise ValueError(
f"Wrong shape for input_ids (shape {input_shape}) or attention_mask (shape {attention_mask.shape})"
)
# Since attention_mask is 1.0 for positions we want to attend and 0.0 for
# masked positions, this operation will create a tensor which is 0.0 for
# positions we want to attend and the dtype's smallest value for masked positions.
# Since we are adding it to the raw scores before the softmax, this is
# effectively the same as removing these entirely.
extended_attention_mask = extended_attention_mask.to(dtype=dtype) # fp16 compatibility
extended_attention_mask = (1.0 - extended_attention_mask) * torch.finfo(dtype).min
return extended_attention_mask
def get_head_mask(
self, head_mask: Optional[Tensor], num_hidden_layers: int, is_attention_chunked: bool = False
) -> Tensor:
"""
Prepare the head mask if needed.
Args:
head_mask (`torch.Tensor` with shape `[num_heads]` or `[num_hidden_layers x num_heads]`, *optional*):
The mask indicating if we should keep the heads or not (1.0 for keep, 0.0 for discard).
num_hidden_layers (`int`):
The number of hidden layers in the model.
is_attention_chunked (`bool`, *optional*, defaults to `False`):
Whether or not the attentions scores are computed by chunks or not.
Returns:
`torch.Tensor` with shape `[num_hidden_layers x batch x num_heads x seq_length x seq_length]` or list with
`[None]` for each layer.
"""
if head_mask is not None:
head_mask = self._convert_head_mask_to_5d(head_mask, num_hidden_layers)
if is_attention_chunked is True:
head_mask = head_mask.unsqueeze(-1)
else:
head_mask = [None] * num_hidden_layers
return head_mask
def _convert_head_mask_to_5d(self, head_mask, num_hidden_layers):
"""-> [num_hidden_layers x batch x num_heads x seq_length x seq_length]"""
if head_mask.dim() == 1:
head_mask = head_mask.unsqueeze(0).unsqueeze(0).unsqueeze(-1).unsqueeze(-1)
head_mask = head_mask.expand(num_hidden_layers, -1, -1, -1, -1)
elif head_mask.dim() == 2:
head_mask = head_mask.unsqueeze(1).unsqueeze(-1).unsqueeze(-1) # We can specify head_mask for each layer
assert head_mask.dim() == 5, f"head_mask.dim != 5, instead {head_mask.dim()}"
head_mask = head_mask.to(dtype=self.dtype) # switch to float if need + fp16 compatibility
return head_mask
def num_parameters(self, only_trainable: bool = False, exclude_embeddings: bool = False) -> int:
"""
Get number of (optionally, trainable or non-embeddings) parameters in the module.
Args:
only_trainable (`bool`, *optional*, defaults to `False`):
Whether or not to return only the number of trainable parameters
exclude_embeddings (`bool`, *optional*, defaults to `False`):
Whether or not to return only the number of non-embeddings parameters
Returns:
`int`: The number of parameters.
"""
if exclude_embeddings:
embedding_param_names = [
f"{name}.weight" for name, module_type in self.named_modules() if isinstance(module_type, nn.Embedding)
]
total_parameters = [
parameter for name, parameter in self.named_parameters() if name not in embedding_param_names
]
else:
total_parameters = list(self.parameters())
total_numel = []
is_loaded_in_4bit = getattr(self, "is_loaded_in_4bit", False)
if is_loaded_in_4bit:
if is_bitsandbytes_available():
import bitsandbytes as bnb
else:
raise ValueError(
"bitsandbytes is not installed but it seems that the model has been loaded in 4bit precision, something went wrong"
" make sure to install bitsandbytes with `pip install bitsandbytes`. You also need a GPU. "
)
for param in total_parameters:
if param.requires_grad or not only_trainable:
# For 4bit models, we need to multiply the number of parameters by 2 as half of the parameters are
# used for the 4bit quantization (uint8 tensors are stored)
if is_loaded_in_4bit and isinstance(param, bnb.nn.Params4bit):
if hasattr(param, "element_size"):
num_bytes = param.element_size()
elif hasattr(param, "quant_storage"):
num_bytes = param.quant_storage.itemsize
else:
num_bytes = 1
total_numel.append(param.numel() * 2 * num_bytes)
else:
total_numel.append(param.numel())
return sum(total_numel)
def estimate_tokens(self, input_dict: Dict[str, Union[torch.Tensor, Any]]) -> int:
"""
Helper function to estimate the total number of tokens from the model inputs.
Args:
inputs (`dict`): The model inputs.
Returns:
`int`: The total number of tokens.
"""
if not hasattr(self, "warnings_issued"):
self.warnings_issued = {}
if self.main_input_name in input_dict:
return input_dict[self.main_input_name].numel()
elif "estimate_tokens" not in self.warnings_issued:
logger.warning(
"Could not estimate the number of tokens of the input, floating-point operations will not be computed"
)
self.warnings_issued["estimate_tokens"] = True
return 0
def floating_point_ops(
self, input_dict: Dict[str, Union[torch.Tensor, Any]], exclude_embeddings: bool = True
) -> int:
"""
Get number of (optionally, non-embeddings) floating-point operations for the forward and backward passes of a
batch with this transformer model. Default approximation neglects the quadratic dependency on the number of
tokens (valid if `12 * d_model << sequence_length`) as laid out in [this
paper](https://arxiv.org/pdf/2001.08361.pdf) section 2.1. Should be overridden for transformers with parameter
re-use e.g. Albert or Universal Transformers, or if doing long-range modeling with very high sequence lengths.
Args:
batch_size (`int`):
The batch size for the forward pass.
sequence_length (`int`):
The number of tokens in each line of the batch.
exclude_embeddings (`bool`, *optional*, defaults to `True`):
Whether or not to count embedding and softmax operations.
Returns:
`int`: The number of floating-point operations.
"""
return 6 * self.estimate_tokens(input_dict) * self.num_parameters(exclude_embeddings=exclude_embeddings)
class PreTrainedModel(nn.Module, ModuleUtilsMixin, GenerationMixin, PushToHubMixin, PeftAdapterMixin):
r"""
Base class for all models.
[`PreTrainedModel`] takes care of storing the configuration of the models and handles methods for loading,
downloading and saving models as well as a few methods common to all models to:
- resize the input embeddings,
- prune heads in the self-attention heads.
Class attributes (overridden by derived classes):
- **config_class** ([`PretrainedConfig`]) -- A subclass of [`PretrainedConfig`] to use as configuration class
for this model architecture.
- **load_tf_weights** (`Callable`) -- A python *method* for loading a TensorFlow checkpoint in a PyTorch model,
taking as arguments:
- **model** ([`PreTrainedModel`]) -- An instance of the model on which to load the TensorFlow checkpoint.
- **config** ([`PreTrainedConfig`]) -- An instance of the configuration associated to the model.
- **path** (`str`) -- A path to the TensorFlow checkpoint.
- **base_model_prefix** (`str`) -- A string indicating the attribute associated to the base model in derived
classes of the same architecture adding modules on top of the base model.
- **is_parallelizable** (`bool`) -- A flag indicating whether this model supports model parallelization.
- **main_input_name** (`str`) -- The name of the principal input to the model (often `input_ids` for NLP
models, `pixel_values` for vision models and `input_values` for speech models).
"""
config_class = None
base_model_prefix = ""
main_input_name = "input_ids"
model_tags = None
_auto_class = None
_no_split_modules = None
_skip_keys_device_placement = None
_keep_in_fp32_modules = None
# a list of `re` patterns of `state_dict` keys that should be removed from the list of missing
# keys we find (keys inside the model but not in the checkpoint) and avoid unnecessary warnings.
_keys_to_ignore_on_load_missing = None
# a list of `re` patterns of `state_dict` keys that should be removed from the list of
# unexpected keys we find (keys inside the checkpoint but not the model) and avoid unnecessary
# warnings.
_keys_to_ignore_on_load_unexpected = None
# a list of `state_dict` keys to ignore when saving the model (useful for keys that aren't
# trained, but which are either deterministic or tied variables)
_keys_to_ignore_on_save = None
# a list of `state_dict` keys that are potentially tied to another key in the state_dict.
_tied_weights_keys = None
is_parallelizable = False
supports_gradient_checkpointing = False
# Flash Attention 2 support
_supports_flash_attn_2 = False
# SDPA support
_supports_sdpa = False
# Has support for a `Cache` instance as `past_key_values`
_supports_cache_class = False
@property
def dummy_inputs(self) -> Dict[str, torch.Tensor]:
"""
`Dict[str, torch.Tensor]`: Dummy inputs to do a forward pass in the network.
"""
return {"input_ids": torch.tensor(DUMMY_INPUTS)}
@property
def framework(self) -> str:
"""
:str: Identifies that this is a PyTorch model.
"""
return "pt"
def __init__(self, config: PretrainedConfig, *inputs, **kwargs):
super().__init__()
if not isinstance(config, PretrainedConfig):
raise ValueError(
f"Parameter config in `{self.__class__.__name__}(config)` should be an instance of class "
"`PretrainedConfig`. To create a model from a pretrained model use "
f"`model = {self.__class__.__name__}.from_pretrained(PRETRAINED_MODEL_NAME)`"
)
# Save config and origin of the pretrained weights if given in model
config = self._autoset_attn_implementation(
config, torch_dtype=torch.get_default_dtype(), check_device_map=False
)
self.config = config
self.name_or_path = config.name_or_path
self.warnings_issued = {}
self.generation_config = GenerationConfig.from_model_config(config) if self.can_generate() else None
# Overwrite the class attribute to make it an instance attribute, so models like
# `InstructBlipForConditionalGeneration` can dynamically update it without modifying the class attribute
# when a different component (e.g. language_model) is used.
self._keep_in_fp32_modules = copy.copy(self.__class__._keep_in_fp32_modules)
def post_init(self):
"""
A method executed at the end of each Transformer model initialization, to execute code that needs the model's
modules properly initialized (such as weight initialization).
"""
self.init_weights()
self._backward_compatibility_gradient_checkpointing()
def _backward_compatibility_gradient_checkpointing(self):
if self.supports_gradient_checkpointing and getattr(self.config, "gradient_checkpointing", False):
self.gradient_checkpointing_enable()
# Remove the attribute now that is has been consumed, so it's no saved in the config.
delattr(self.config, "gradient_checkpointing")
def add_model_tags(self, tags: Union[List[str], str]) -> None:
r"""
Add custom tags into the model that gets pushed to the Hugging Face Hub. Will
not overwrite existing tags in the model.
Args:
tags (`Union[List[str], str]`):
The desired tags to inject in the model
Examples:
```python
from transformers import AutoModel
model = AutoModel.from_pretrained("google-bert/bert-base-cased")
model.add_model_tags(["custom", "custom-bert"])
# Push the model to your namespace with the name "my-custom-bert".
model.push_to_hub("my-custom-bert")
```
"""
if isinstance(tags, str):
tags = [tags]
if self.model_tags is None:
self.model_tags = []
for tag in tags:
if tag not in self.model_tags:
self.model_tags.append(tag)
@classmethod
def _from_config(cls, config, **kwargs):
"""
All context managers that the model should be initialized under go here.
Args:
torch_dtype (`torch.dtype`, *optional*):
Override the default `torch.dtype` and load the model under this dtype.
"""
torch_dtype = kwargs.pop("torch_dtype", None)
use_flash_attention_2 = kwargs.pop("use_flash_attention_2", False)
# override default dtype if needed
dtype_orig = None
if torch_dtype is not None:
dtype_orig = cls._set_default_torch_dtype(torch_dtype)
config = copy.deepcopy(config) # We do not want to modify the config inplace in _from_config.
config._attn_implementation = kwargs.pop("attn_implementation", None)
config = cls._autoset_attn_implementation(
config,
use_flash_attention_2=use_flash_attention_2,
check_device_map=False,
torch_dtype=torch_dtype,
)
if is_deepspeed_zero3_enabled():
import deepspeed
logger.info("Detected DeepSpeed ZeRO-3: activating zero.init() for this model")
# this immediately partitions the model across all gpus, to avoid the overhead in time
# and memory copying it on CPU or each GPU first
with deepspeed.zero.Init(config_dict_or_path=deepspeed_config()):
model = cls(config, **kwargs)
else:
model = cls(config, **kwargs)
# restore default dtype if it was modified
if dtype_orig is not None:
torch.set_default_dtype(dtype_orig)
return model
@classmethod
def _autoset_attn_implementation(
cls,
config,
use_flash_attention_2: bool = False,
torch_dtype: Optional[torch.dtype] = None,
device_map: Optional[Union[str, Dict[str, int]]] = None,
check_device_map: bool = True,
):
"""
Automatically checks and dispatches to a default attention implementation. In order of priority:
1. An implementation specified in `config._attn_implementation` (due for example to the argument attn_implementation="sdpa" in from_pretrained).
2. DEPRECATED: if use_flash_attention_2 is set to `True` and `flash_attn` is available, flash attention. (`LlamaFlashAttention` for example)
3. SDPA implementation, if available and supported by the model type. (`LlamaSdpaAttention` for example)
4. The default model's implementation otherwise (`LlamaAttention` for example) .
"""
# Here we use config._attn_implementation_internal to check whether the attention implementation was explicitely set by the user.
# The property `PretrainedConfig._attn_implementation` is never `None`, for backward compatibility (always fall back on "eager").
# The `hasattr` here is used as some Transformers tests for some reason do not call PretrainedConfig __init__ (e.g. test_no_super_init_config_and_model)
requested_attn_implementation = None
if hasattr(config, "_attn_implementation_internal") and config._attn_implementation_internal is not None:
if config._attn_implementation != "flash_attention_2" and use_flash_attention_2:
raise ValueError(
f'Both attn_implementation="{config._attn_implementation}" and `use_flash_attention_2=True` were used when loading the model, which are not compatible.'
' We recommend to just use `attn_implementation="flash_attention_2"` when loading the model.'
)
if config._attn_implementation not in ["eager", "sdpa", "flash_attention_2"]:
message = f'Specified `attn_implementation="{config._attn_implementation}"` is not supported. The only possible arguments are `attn_implementation="eager"` (manual attention implementation)'
if cls._supports_flash_attn_2:
message += ', `"attn_implementation=flash_attention_2"` (implementation using flash attention 2)'
if cls._supports_sdpa:
message += ', `"attn_implementation=sdpa"` (implementation using torch.nn.functional.scaled_dot_product_attention)'
raise ValueError(message + ".")
# If a config is passed with a preset attn_implementation, we skip the automatic dispatch and use the user-provided config, with hard checks that the requested attention implementation is available.
requested_attn_implementation = config._attn_implementation_internal
if use_flash_attention_2:
logger.warning_once(
'The model was loaded with use_flash_attention_2=True, which is deprecated and may be removed in a future release. Please use `attn_implementation="flash_attention_2"` instead.'
)
config._attn_implementation = "flash_attention_2"
if config._attn_implementation == "flash_attention_2":
cls._check_and_enable_flash_attn_2(
config,
torch_dtype=torch_dtype,
device_map=device_map,
hard_check_only=False,
check_device_map=check_device_map,
)
elif requested_attn_implementation in [None, "sdpa"] and not is_torch_xla_available():
# use_flash_attention_2 takes priority over SDPA, hence SDPA treated in this elif.
config = cls._check_and_enable_sdpa(
config,
hard_check_only=False if requested_attn_implementation is None else True,
)
else:
config._attn_implementation = "eager"
return config
@classmethod
def _set_default_torch_dtype(cls, dtype: torch.dtype) -> torch.dtype:
"""
Change the default dtype and return the previous one. This is needed when wanting to instantiate the model
under specific dtype.
Args:
dtype (`torch.dtype`):
a floating dtype to set to.
Returns:
`torch.dtype`: the original `dtype` that can be used to restore `torch.set_default_dtype(dtype)` if it was
modified. If it wasn't, returns `None`.
Note `set_default_dtype` currently only works with floating-point types and asserts if for example,
`torch.int64` is passed. So if a non-float `dtype` is passed this functions will throw an exception.
"""
if not dtype.is_floating_point:
raise ValueError(
f"Can't instantiate {cls.__name__} model under dtype={dtype} since it is not a floating point dtype"
)
logger.info(f"Instantiating {cls.__name__} model under default dtype {dtype}.")
dtype_orig = torch.get_default_dtype()
torch.set_default_dtype(dtype)
return dtype_orig
@property
def base_model(self) -> nn.Module:
"""
`torch.nn.Module`: The main body of the model.
"""
return getattr(self, self.base_model_prefix, self)
@classmethod
def can_generate(cls) -> bool:
"""
Returns whether this model can generate sequences with `.generate()`.
Returns:
`bool`: Whether this model can generate sequences with `.generate()`.
"""
# Detects whether `prepare_inputs_for_generation` has been overwritten, which is a requirement for generation.
# Alternativelly, the model can also have a custom `generate` function.
if "GenerationMixin" in str(cls.prepare_inputs_for_generation) and "GenerationMixin" in str(cls.generate):
return False
return True
@classmethod
def _check_and_enable_flash_attn_2(
cls,
config,
torch_dtype: Optional[torch.dtype] = None,
device_map: Optional[Union[str, Dict[str, int]]] = None,
check_device_map: bool = True,
hard_check_only: bool = False,
) -> PretrainedConfig:
"""
Checks the availability of Flash Attention 2 and compatibility with the current model.
If all checks pass and `hard_check_only` is False, the method will set the config attribute `attn_implementation` to "flash_attention_2" so that the model can initialize the correct attention module.
"""
if not cls._supports_flash_attn_2:
raise ValueError(
f"{cls.__name__} does not support Flash Attention 2.0 yet. Please request to add support where"
f" the model is hosted, on its model hub page: https://huggingface.co/{config._name_or_path}/discussions/new"
" or in the Transformers GitHub repo: https://github.com/huggingface/transformers/issues/new"
)
if not is_flash_attn_2_available():
preface = "FlashAttention2 has been toggled on, but it cannot be used due to the following error:"
install_message = "Please refer to the documentation of https://huggingface.co/docs/transformers/perf_infer_gpu_one#flashattention-2 to install Flash Attention 2."
if importlib.util.find_spec("flash_attn") is None:
raise ImportError(f"{preface} the package flash_attn seems to be not installed. {install_message}")
flash_attention_version = version.parse(importlib.metadata.version("flash_attn"))
if torch.version.cuda:
if flash_attention_version < version.parse("2.1.0"):
raise ImportError(
f"{preface} you need flash_attn package version to be greater or equal than 2.1.0. Detected version {flash_attention_version}. {install_message}"
)
else:
raise ImportError(f"{preface} Flash Attention 2 is not available. {install_message}")
elif torch.version.hip:
if flash_attention_version < version.parse("2.0.4"):
raise ImportError(
f"{preface} you need flash_attn package version to be greater or equal than 2.0.4. Make sure to have that version installed - detected version {flash_attention_version}. {install_message}"
)
else:
raise ImportError(f"{preface} Flash Attention 2 is not available. {install_message}")
_is_bettertransformer = getattr(cls, "use_bettertransformer", False)
if _is_bettertransformer:
raise ValueError(
"Flash Attention 2 and BetterTransformer API are not compatible. Please make sure to disable BetterTransformers by doing model.reverse_bettertransformer()"
)
if torch_dtype is None:
logger.warning_once(
"You are attempting to use Flash Attention 2.0 without specifying a torch dtype. This might lead to unexpected behaviour"
)
elif torch_dtype is not None and torch_dtype not in [torch.float16, torch.bfloat16]:
logger.warning_once(
"Flash Attention 2.0 only supports torch.float16 and torch.bfloat16 dtypes, but"
f" the current dype in {cls.__name__} is {torch_dtype}. You should run training or inference using Automatic Mixed-Precision via the `with torch.autocast(device_type='torch_device'):` decorator,"
' or load the model with the `torch_dtype` argument. Example: `model = AutoModel.from_pretrained("openai/whisper-tiny", attn_implementation="flash_attention_2", torch_dtype=torch.float16)`'
)
# The check `torch.empty(0).device.type != "cuda"` is needed as the model may be initialized after `torch.set_default_device` has been called,
# or the model may be initialized under the context manager `with torch.device("cuda"):`.
if check_device_map and device_map is None and torch.empty(0).device.type != "cuda":
if torch.cuda.is_available():
logger.warning_once(
"You are attempting to use Flash Attention 2.0 with a model not initialized on GPU. Make sure to move the model to GPU"
" after initializing it on CPU with `model.to('cuda')`."
)
else:
raise ValueError(
"You are attempting to use Flash Attention 2.0 with a model not initialized on GPU and with no GPU available. "
"This is not supported yet. Please make sure to have access to a GPU and either initialise the model on a GPU by passing a device_map "
"or initialising the model on CPU and then moving it to GPU."
)
elif (
check_device_map
and device_map is not None
and isinstance(device_map, dict)
and ("cpu" in device_map.values() or "disk" in device_map.values())
):
raise ValueError(
"You are attempting to use Flash Attention 2.0 with a model dispatched on CPU or disk. This is not supported. Please make sure to "
"initialise the model on a GPU by passing a device_map that contains only GPU devices as keys."
)
if not hard_check_only:
config._attn_implementation = "flash_attention_2"
return config
@classmethod
def _check_and_enable_sdpa(cls, config, hard_check_only: bool = False) -> PretrainedConfig:
"""
Checks the availability of SDPA for a given model.
If all checks pass and `hard_check_only` is False, the method will set the config attribute `_attn_implementation` to "flash_attention_2" so that the model can initialize the correct attention module.
"""
if hard_check_only:
if not cls._supports_sdpa:
raise ValueError(
f"{cls.__name__} does not support an attention implementation through torch.nn.functional.scaled_dot_product_attention yet."
" Please request the support for this architecture: https://github.com/huggingface/transformers/issues/28005. If you believe"
' this error is a bug, please open an issue in Transformers GitHub repository and load your model with the argument `attn_implementation="eager"` meanwhile. Example: `model = AutoModel.from_pretrained("openai/whisper-tiny", attn_implementation="eager")`'
)
if not is_torch_sdpa_available():
raise ImportError(
"PyTorch SDPA requirements in Transformers are not met. Please install torch>=2.1.1."
)
if not is_torch_sdpa_available() or not cls._supports_sdpa:
return config
_is_bettertransformer = getattr(cls, "use_bettertransformer", False)
if _is_bettertransformer:
return config
if not hard_check_only:
config._attn_implementation = "sdpa"
return config
def enable_input_require_grads(self):
"""
Enables the gradients for the input embeddings. This is useful for fine-tuning adapter weights while keeping
the model weights fixed.
"""
def make_inputs_require_grads(module, input, output):
output.requires_grad_(True)
self._require_grads_hook = self.get_input_embeddings().register_forward_hook(make_inputs_require_grads)
def disable_input_require_grads(self):
"""
Removes the `_require_grads_hook`.
"""
self._require_grads_hook.remove()
def get_input_embeddings(self) -> nn.Module:
"""
Returns the model's input embeddings.
Returns:
`nn.Module`: A torch module mapping vocabulary to hidden states.
"""
base_model = getattr(self, self.base_model_prefix, self)
if base_model is not self:
return base_model.get_input_embeddings()
else:
raise NotImplementedError
def set_input_embeddings(self, value: nn.Module):
"""
Set model's input embeddings.
Args:
value (`nn.Module`): A module mapping vocabulary to hidden states.
"""
base_model = getattr(self, self.base_model_prefix, self)
if base_model is not self:
base_model.set_input_embeddings(value)
else:
raise NotImplementedError
def get_output_embeddings(self) -> nn.Module:
"""
Returns the model's output embeddings.
Returns:
`nn.Module`: A torch module mapping hidden states to vocabulary.
"""
return None # Overwrite for models with output embeddings
def _init_weights(self, module):
"""
Initialize the weights. This method should be overridden by derived class and is
the only initialization method that will be called when loading a checkpoint
using `from_pretrained`. Any attempt to initialize outside of this function
will be useless as the torch.nn.init function are all replaced with skip.
"""
pass
def _initialize_weights(self, module):
"""
Initialize the weights if they are not already initialized.
"""
if getattr(module, "_is_hf_initialized", False):
return
self._init_weights(module)
module._is_hf_initialized = True
def tie_weights(self):
"""
Tie the weights between the input embeddings and the output embeddings.
If the `torchscript` flag is set in the configuration, can't handle parameter sharing so we are cloning the
weights instead.
"""
if getattr(self.config, "tie_word_embeddings", True):
output_embeddings = self.get_output_embeddings()
if output_embeddings is not None:
self._tie_or_clone_weights(output_embeddings, self.get_input_embeddings())
if getattr(self.config, "is_encoder_decoder", False) and getattr(self.config, "tie_encoder_decoder", False):
if hasattr(self, self.base_model_prefix):
self = getattr(self, self.base_model_prefix)
tied_weights = self._tie_encoder_decoder_weights(
self.encoder, self.decoder, self.base_model_prefix, "encoder"
)
# Setting a dynamic variable instead of `_tied_weights_keys` because it's a class
# attributed not an instance member, therefore modifying it will modify the entire class
# Leading to issues on subsequent calls by different tests or subsequent calls.
self._dynamic_tied_weights_keys = tied_weights
for module in self.modules():
if hasattr(module, "_tie_weights"):
module._tie_weights()
@staticmethod
def _tie_encoder_decoder_weights(
encoder: nn.Module, decoder: nn.Module, base_model_prefix: str, base_encoder_name: str
):
uninitialized_encoder_weights: List[str] = []
tied_weights: List[str] = []
if decoder.__class__ != encoder.__class__:
logger.info(
f"{decoder.__class__} and {encoder.__class__} are not equal. In this case make sure that all encoder"
" weights are correctly initialized."
)
def tie_encoder_to_decoder_recursively(
decoder_pointer: nn.Module,
encoder_pointer: nn.Module,
module_name: str,
base_encoder_name: str,
uninitialized_encoder_weights: List[str],
depth=0,
total_decoder_name="",
total_encoder_name="",
):
assert isinstance(decoder_pointer, nn.Module) and isinstance(
encoder_pointer, nn.Module
), f"{decoder_pointer} and {encoder_pointer} have to be of type nn.Module"
if hasattr(decoder_pointer, "weight"):
assert hasattr(encoder_pointer, "weight")
encoder_pointer.weight = decoder_pointer.weight
tied_weights.append(f"{base_encoder_name}{total_encoder_name}.weight")
if hasattr(decoder_pointer, "bias"):
assert hasattr(encoder_pointer, "bias")
tied_weights.append(f"{base_encoder_name}{total_encoder_name}.bias")
encoder_pointer.bias = decoder_pointer.bias
return
encoder_modules = encoder_pointer._modules
decoder_modules = decoder_pointer._modules
if len(decoder_modules) > 0:
assert (
len(encoder_modules) > 0
), f"Encoder module {encoder_pointer} does not match decoder module {decoder_pointer}"
all_encoder_weights = {module_name + "/" + sub_name for sub_name in encoder_modules.keys()}
encoder_layer_pos = 0
for name, module in decoder_modules.items():
if name.isdigit():
encoder_name = str(int(name) + encoder_layer_pos)
decoder_name = name
if not isinstance(decoder_modules[decoder_name], type(encoder_modules[encoder_name])) and len(
encoder_modules
) != len(decoder_modules):
# this can happen if the name corresponds to the position in a list module list of layers
# in this case the decoder has added a cross-attention that the encoder does not have
# thus skip this step and subtract one layer pos from encoder
encoder_layer_pos -= 1
continue
elif name not in encoder_modules:
continue
elif depth > 500:
raise ValueError(
"Max depth of recursive function `tie_encoder_to_decoder` reached. It seems that there is"
" a circular dependency between two or more `nn.Modules` of your model."
)
else:
decoder_name = encoder_name = name
tie_encoder_to_decoder_recursively(
decoder_modules[decoder_name],
encoder_modules[encoder_name],
module_name + "/" + name,
base_encoder_name,
uninitialized_encoder_weights,
depth=depth + 1,
total_encoder_name=f"{total_encoder_name}.{encoder_name}",
total_decoder_name=f"{total_decoder_name}.{decoder_name}",
)
all_encoder_weights.remove(module_name + "/" + encoder_name)
uninitialized_encoder_weights += list(all_encoder_weights)
# tie weights recursively
tie_encoder_to_decoder_recursively(
decoder, encoder, base_model_prefix, base_encoder_name, uninitialized_encoder_weights
)
if len(uninitialized_encoder_weights) > 0:
logger.warning(
f"The following encoder weights were not tied to the decoder {uninitialized_encoder_weights}"
)
return tied_weights
def _tie_or_clone_weights(self, output_embeddings, input_embeddings):
"""Tie or clone module weights depending of whether we are using TorchScript or not"""
if self.config.torchscript:
output_embeddings.weight = nn.Parameter(input_embeddings.weight.clone())
else:
output_embeddings.weight = input_embeddings.weight
if getattr(output_embeddings, "bias", None) is not None:
output_embeddings.bias.data = nn.functional.pad(
output_embeddings.bias.data,
(
0,
output_embeddings.weight.shape[0] - output_embeddings.bias.shape[0],
),
"constant",
0,
)
if hasattr(output_embeddings, "out_features") and hasattr(input_embeddings, "num_embeddings"):
output_embeddings.out_features = input_embeddings.num_embeddings
def _get_no_split_modules(self, device_map: str):
"""
Get the modules of the model that should not be spit when using device_map. We iterate through the modules to
get the underlying `_no_split_modules`.
Args:
device_map (`str`):
The device map value. Options are ["auto", "balanced", "balanced_low_0", "sequential"]
Returns:
`List[str]`: List of modules that should not be split
"""
_no_split_modules = set()
modules_to_check = [self]
while len(modules_to_check) > 0:
module = modules_to_check.pop(-1)
# if the module does not appear in _no_split_modules, we also check the children
if module.__class__.__name__ not in _no_split_modules:
if isinstance(module, PreTrainedModel):
if module._no_split_modules is None:
raise ValueError(
f"{module.__class__.__name__} does not support `device_map='{device_map}'`. To implement support, the model "
"class needs to implement the `_no_split_modules` attribute."
)
else:
_no_split_modules = _no_split_modules | set(module._no_split_modules)
modules_to_check += list(module.children())
return list(_no_split_modules)
def resize_token_embeddings(
self, new_num_tokens: Optional[int] = None, pad_to_multiple_of: Optional[int] = None
) -> nn.Embedding:
"""
Resizes input token embeddings matrix of the model if `new_num_tokens != config.vocab_size`.
Takes care of tying weights embeddings afterwards if the model class has a `tie_weights()` method.
Arguments:
new_num_tokens (`int`, *optional*):
The new number of tokens in the embedding matrix. Increasing the size will add newly initialized
vectors at the end. Reducing the size will remove vectors from the end. If not provided or `None`, just
returns a pointer to the input tokens `torch.nn.Embedding` module of the model without doing anything.
pad_to_multiple_of (`int`, *optional*):
If set will pad the embedding matrix to a multiple of the provided value.If `new_num_tokens` is set to
`None` will just pad the embedding to a multiple of `pad_to_multiple_of`.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
`>= 7.5` (Volta), or on TPUs which benefit from having sequence lengths be a multiple of 128. For more
details about this, or help on choosing the correct value for resizing, refer to this guide:
https://docs.nvidia.com/deeplearning/performance/dl-performance-matrix-multiplication/index.html#requirements-tc
Return:
`torch.nn.Embedding`: Pointer to the input tokens Embeddings Module of the model.
"""
model_embeds = self._resize_token_embeddings(new_num_tokens, pad_to_multiple_of)
if new_num_tokens is None and pad_to_multiple_of is None:
return model_embeds
# Update base model and current model config
if hasattr(self.config, "text_config"):
self.config.text_config.vocab_size = model_embeds.weight.shape[0]
# TODO: to be removed after v4.42, config.vocab_size is deprecated for models that have a config.text_config
self.config.vocab_size = model_embeds.weight.shape[0]
self.vocab_size = model_embeds.weight.shape[0]
# Tie weights again if needed
self.tie_weights()
return model_embeds
def _resize_token_embeddings(self, new_num_tokens, pad_to_multiple_of=None):
old_embeddings = self.get_input_embeddings()
new_embeddings = self._get_resized_embeddings(old_embeddings, new_num_tokens, pad_to_multiple_of)
if hasattr(old_embeddings, "_hf_hook"):
hook = old_embeddings._hf_hook
add_hook_to_module(new_embeddings, hook)
old_embeddings_requires_grad = old_embeddings.weight.requires_grad
new_embeddings.requires_grad_(old_embeddings_requires_grad)
self.set_input_embeddings(new_embeddings)
is_quantized = hasattr(self, "hf_quantizer") and self.hf_quantizer is not None
# Update new_num_tokens with the actual size of new_embeddings
if pad_to_multiple_of is not None:
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
with deepspeed.zero.GatheredParameters(new_embeddings.weight, modifier_rank=None):
new_num_tokens = new_embeddings.weight.shape[0]
else:
new_num_tokens = new_embeddings.weight.shape[0]
# if word embeddings are not tied, make sure that lm head is resized as well
if self.get_output_embeddings() is not None and not self.config.tie_word_embeddings:
old_lm_head = self.get_output_embeddings()
if isinstance(old_lm_head, torch.nn.Embedding):
new_lm_head = self._get_resized_embeddings(old_lm_head, new_num_tokens)
else:
new_lm_head = self._get_resized_lm_head(old_lm_head, new_num_tokens)
if hasattr(old_lm_head, "_hf_hook"):
hook = old_lm_head._hf_hook
add_hook_to_module(new_lm_head, hook)
old_lm_head_requires_grad = old_lm_head.weight.requires_grad
new_lm_head.requires_grad_(old_lm_head_requires_grad)
self.set_output_embeddings(new_lm_head)
return self.get_input_embeddings()
def _get_resized_embeddings(
self,
old_embeddings: nn.Embedding,
new_num_tokens: Optional[int] = None,
pad_to_multiple_of: Optional[int] = None,
) -> nn.Embedding:
"""
Build a resized Embedding Module from a provided token Embedding Module. Increasing the size will add newly
initialized vectors at the end. Reducing the size will remove vectors from the end
Args:
old_embeddings (`torch.nn.Embedding`):
Old embeddings to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the embedding matrix.
Increasing the size will add newly initialized vectors at the end. Reducing the size will remove
vectors from the end. If not provided or `None`, just returns a pointer to the input tokens
`torch.nn.Embedding` module of the model without doing anything.
pad_to_multiple_of (`int`, *optional*):
If set will pad the embedding matrix to a multiple of the provided value. If `new_num_tokens` is set to
`None` will just pad the embedding to a multiple of `pad_to_multiple_of`.
This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
`>= 7.5` (Volta), or on TPUs which benefit from having sequence lengths be a multiple of 128. For more
details about this, or help on choosing the correct value for resizing, refer to this guide:
https://docs.nvidia.com/deeplearning/performance/dl-performance-matrix-multiplication/index.html#requirements-tc
Return:
`torch.nn.Embedding`: Pointer to the resized Embedding Module or the old Embedding Module if
`new_num_tokens` is `None`
"""
if pad_to_multiple_of is not None:
if not isinstance(pad_to_multiple_of, int):
raise ValueError(
f"Asking to pad the embedding matrix to a multiple of `{pad_to_multiple_of}`, which is not and integer. Please make sure to pass an integer"
)
if new_num_tokens is None:
new_num_tokens = old_embeddings.weight.shape[0]
new_num_tokens = ((new_num_tokens + pad_to_multiple_of - 1) // pad_to_multiple_of) * pad_to_multiple_of
else:
logger.info(
"You are resizing the embedding layer without providing a `pad_to_multiple_of` parameter. This means that the new embedding"
f" dimension will be {new_num_tokens}. This might induce some performance reduction as *Tensor Cores* will not be available."
" For more details about this, or help on choosing the correct value for resizing, refer to this guide:"
" https://docs.nvidia.com/deeplearning/performance/dl-performance-matrix-multiplication/index.html#requirements-tc"
)
if new_num_tokens is None:
return old_embeddings
is_quantized = hasattr(self, "hf_quantizer") and self.hf_quantizer is not None
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
with deepspeed.zero.GatheredParameters(old_embeddings.weight, modifier_rank=None):
old_num_tokens, old_embedding_dim = old_embeddings.weight.size()
else:
old_num_tokens, old_embedding_dim = old_embeddings.weight.size()
if old_num_tokens == new_num_tokens and not is_deepspeed_zero3_enabled():
return old_embeddings
if not isinstance(old_embeddings, nn.Embedding):
raise TypeError(
f"Old embeddings are of type {type(old_embeddings)}, which is not an instance of {nn.Embedding}. You"
" should either use a different resize function or make sure that `old_embeddings` are an instance of"
f" {nn.Embedding}."
)
# Build new embeddings
# When using DeepSpeed ZeRO-3, we shouldn't create new embeddings with DeepSpeed init
# because the shape of the new embedding layer is used across various modeling files
# as well as to update config vocab size. Shape will be 0 when using DeepSpeed init leading
# to errors when training.
new_embeddings = nn.Embedding(
new_num_tokens,
old_embedding_dim,
device=old_embeddings.weight.device,
dtype=old_embeddings.weight.dtype,
)
# initialize all new embeddings (in particular added tokens)
self._init_weights(new_embeddings)
# Copy token embeddings from the previous weights
# numbers of tokens to copy
n = min(old_num_tokens, new_num_tokens)
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
params = [old_embeddings.weight, new_embeddings.weight]
with deepspeed.zero.GatheredParameters(params, modifier_rank=0):
new_embeddings.weight.data[:n, :] = old_embeddings.weight.data[:n, :]
else:
new_embeddings.weight.data[:n, :] = old_embeddings.weight.data[:n, :]
return new_embeddings
def _get_resized_lm_head(
self, old_lm_head: nn.Linear, new_num_tokens: Optional[int] = None, transposed: Optional[bool] = False
) -> nn.Linear:
"""
Build a resized Linear Module from a provided old Linear Module. Increasing the size will add newly initialized
vectors at the end. Reducing the size will remove vectors from the end
Args:
old_lm_head (`torch.nn.Linear`):
Old lm head liner layer to be resized.
new_num_tokens (`int`, *optional*):
New number of tokens in the linear matrix.
Increasing the size will add newly initialized vectors at the end. Reducing the size will remove
vectors from the end. If not provided or `None`, just returns a pointer to the input tokens
`torch.nn.Linear` module of the model without doing anything. transposed (`bool`, *optional*, defaults
to `False`): Whether `old_lm_head` is transposed or not. If True `old_lm_head.size()` is `lm_head_dim,
vocab_size` else `vocab_size, lm_head_dim`.
Return:
`torch.nn.Linear`: Pointer to the resized Linear Module or the old Linear Module if `new_num_tokens` is
`None`
"""
if new_num_tokens is None:
return old_lm_head
is_quantized = hasattr(self, "hf_quantizer") and self.hf_quantizer is not None
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
with deepspeed.zero.GatheredParameters(old_lm_head.weight, modifier_rank=None):
old_num_tokens, old_lm_head_dim = (
old_lm_head.weight.size() if not transposed else old_lm_head.weight.t().size()
)
else:
old_num_tokens, old_lm_head_dim = (
old_lm_head.weight.size() if not transposed else old_lm_head.weight.t().size()
)
if old_num_tokens == new_num_tokens and not is_deepspeed_zero3_enabled():
return old_lm_head
if not isinstance(old_lm_head, nn.Linear):
raise TypeError(
f"Old language model head is of type {type(old_lm_head)}, which is not an instance of {nn.Linear}. You"
" should either use a different resize function or make sure that `old_lm_head` are an instance of"
f" {nn.Linear}."
)
# Build new lm head
new_lm_head_shape = (old_lm_head_dim, new_num_tokens) if not transposed else (new_num_tokens, old_lm_head_dim)
has_new_lm_head_bias = old_lm_head.bias is not None
# When using DeepSpeed ZeRO-3, we shouldn't create new embeddings with DeepSpeed init
# because the shape of the new embedding layer is used across various modeling files
# as well as to update config vocab size. Shape will be 0 when using DeepSpeed init leading
# to errors when training.
new_lm_head = nn.Linear(
*new_lm_head_shape,
bias=has_new_lm_head_bias,
device=old_lm_head.weight.device,
dtype=old_lm_head.weight.dtype,
)
# initialize new lm head (in particular added tokens)
self._init_weights(new_lm_head)
num_tokens_to_copy = min(old_num_tokens, new_num_tokens)
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
params = [old_lm_head.weight, old_lm_head.bias, new_lm_head.weight, new_lm_head.bias]
with deepspeed.zero.GatheredParameters(params, modifier_rank=0):
self._copy_lm_head_original_to_resized(
new_lm_head, old_lm_head, num_tokens_to_copy, transposed, has_new_lm_head_bias
)
else:
self._copy_lm_head_original_to_resized(
new_lm_head, old_lm_head, num_tokens_to_copy, transposed, has_new_lm_head_bias
)
return new_lm_head
def _copy_lm_head_original_to_resized(
self, new_lm_head, old_lm_head, num_tokens_to_copy, transposed, has_new_lm_head_bias
):
# Copy old lm head weights to new lm head
if not transposed:
new_lm_head.weight.data[:num_tokens_to_copy, :] = old_lm_head.weight.data[:num_tokens_to_copy, :]
else:
new_lm_head.weight.data[:, :num_tokens_to_copy] = old_lm_head.weight.data[:, :num_tokens_to_copy]
# Copy bias weights to new lm head
if has_new_lm_head_bias:
new_lm_head.bias.data[:num_tokens_to_copy] = old_lm_head.bias.data[:num_tokens_to_copy]
def resize_position_embeddings(self, new_num_position_embeddings: int):
raise NotImplementedError(
f"`resize_position_embeddings` is not implemented for {self.__class__}`. To implement it, you should "
f"overwrite this method in the class {self.__class__} in `modeling_{self.__class__.__module__}.py`"
)
def get_position_embeddings(self) -> Union[nn.Embedding, Tuple[nn.Embedding]]:
raise NotImplementedError(
f"`get_position_embeddings` is not implemented for {self.__class__}`. To implement it, you should "
f"overwrite this method in the class {self.__class__} in `modeling_{self.__class__.__module__}.py`"
)
def init_weights(self):
"""
If needed prunes and maybe initializes weights. If using a custom `PreTrainedModel`, you need to implement any
initialization logic in `_init_weights`.
"""
# Prune heads if needed
if self.config.pruned_heads:
self.prune_heads(self.config.pruned_heads)
if _init_weights:
# Initialize weights
self.apply(self._initialize_weights)
# Tie weights should be skipped when not initializing all weights
# since from_pretrained(...) calls tie weights anyways
self.tie_weights()
def prune_heads(self, heads_to_prune: Dict[int, List[int]]):
"""
Prunes heads of the base model.
Arguments:
heads_to_prune (`Dict[int, List[int]]`):
Dictionary with keys being selected layer indices (`int`) and associated values being the list of heads
to prune in said layer (list of `int`). For instance {1: [0, 2], 2: [2, 3]} will prune heads 0 and 2 on
layer 1 and heads 2 and 3 on layer 2.
"""
# save new sets of pruned heads as union of previously stored pruned heads and newly pruned heads
for layer, heads in heads_to_prune.items():
union_heads = set(self.config.pruned_heads.get(layer, [])) | set(heads)
self.config.pruned_heads[layer] = list(union_heads) # Unfortunately we have to store it as list for JSON
self.base_model._prune_heads(heads_to_prune)
def gradient_checkpointing_enable(self, gradient_checkpointing_kwargs=None):
"""
Activates gradient checkpointing for the current model.
Note that in other frameworks this feature can be referred to as "activation checkpointing" or "checkpoint
activations".
We pass the `__call__` method of the modules instead of `forward` because `__call__` attaches all the hooks of
the module. https://discuss.pytorch.org/t/any-different-between-model-input-and-model-forward-input/3690/2
Args:
gradient_checkpointing_kwargs (dict, *optional*):
Additional keyword arguments passed along to the `torch.utils.checkpoint.checkpoint` function.
"""
if not self.supports_gradient_checkpointing:
raise ValueError(f"{self.__class__.__name__} does not support gradient checkpointing.")
if gradient_checkpointing_kwargs is None:
gradient_checkpointing_kwargs = {"use_reentrant": True}
gradient_checkpointing_func = functools.partial(checkpoint, **gradient_checkpointing_kwargs)
# For old GC format (transformers < 4.35.0) for models that live on the Hub
# we will fall back to the overwritten `_set_gradient_checkpointing` method
_is_using_old_format = "value" in inspect.signature(self._set_gradient_checkpointing).parameters
if not _is_using_old_format:
self._set_gradient_checkpointing(enable=True, gradient_checkpointing_func=gradient_checkpointing_func)
else:
self.apply(partial(self._set_gradient_checkpointing, value=True))
logger.warning(
"You are using an old version of the checkpointing format that is deprecated (We will also silently ignore `gradient_checkpointing_kwargs` in case you passed it)."
"Please update to the new format on your modeling file. To use the new format, you need to completely remove the definition of the method `_set_gradient_checkpointing` in your model."
)
if getattr(self, "_hf_peft_config_loaded", False):
# When using PEFT + gradient checkpointing + Trainer we need to make sure the input has requires_grad=True
# we do it also on PEFT: https://github.com/huggingface/peft/blob/85013987aa82aa1af3da1236b6902556ce3e483e/src/peft/peft_model.py#L334
# When training with PEFT, only LoRA layers will have requires grad set to True, but the output of frozen layers need to propagate
# the gradients to make sure the gradient flows.
self.enable_input_require_grads()
def _set_gradient_checkpointing(self, enable: bool = True, gradient_checkpointing_func: Callable = checkpoint):
is_gradient_checkpointing_set = False
# Apply it on the top-level module in case the top-level modules supports it
# for example, LongT5Stack inherits from `PreTrainedModel`.
if hasattr(self, "gradient_checkpointing"):
self._gradient_checkpointing_func = gradient_checkpointing_func
self.gradient_checkpointing = enable
is_gradient_checkpointing_set = True
for module in self.modules():
if hasattr(module, "gradient_checkpointing"):
module._gradient_checkpointing_func = gradient_checkpointing_func
module.gradient_checkpointing = enable
is_gradient_checkpointing_set = True
if not is_gradient_checkpointing_set:
raise ValueError(
f"{self.__class__.__name__} is not compatible with gradient checkpointing. Make sure all the architecture support it by setting a boolean attribute"
" `gradient_checkpointing` to modules of the model that uses checkpointing."
)
def gradient_checkpointing_disable(self):
"""
Deactivates gradient checkpointing for the current model.
Note that in other frameworks this feature can be referred to as "activation checkpointing" or "checkpoint
activations".
"""
if self.supports_gradient_checkpointing:
# For old GC format (transformers < 4.35.0) for models that live on the Hub
# we will fall back to the overwritten `_set_gradient_checkpointing` methid
_is_using_old_format = "value" in inspect.signature(self._set_gradient_checkpointing).parameters
if not _is_using_old_format:
self._set_gradient_checkpointing(enable=False)
else:
logger.warning(
"You are using an old version of the checkpointing format that is deprecated (We will also silently ignore `gradient_checkpointing_kwargs` in case you passed it)."
"Please update to the new format on your modeling file. To use the new format, you need to completely remove the definition of the method `_set_gradient_checkpointing` in your model."
)
self.apply(partial(self._set_gradient_checkpointing, value=False))
if getattr(self, "_hf_peft_config_loaded", False):
self.disable_input_require_grads()
@property
def is_gradient_checkpointing(self) -> bool:
"""
Whether gradient checkpointing is activated for this model or not.
Note that in other frameworks this feature can be referred to as "activation checkpointing" or "checkpoint
activations".
"""
return any(hasattr(m, "gradient_checkpointing") and m.gradient_checkpointing for m in self.modules())
def save_pretrained(
self,
save_directory: Union[str, os.PathLike],
is_main_process: bool = True,
state_dict: Optional[dict] = None,
save_function: Callable = torch.save,
push_to_hub: bool = False,
max_shard_size: Union[int, str] = "5GB",
safe_serialization: bool = True,
variant: Optional[str] = None,
token: Optional[Union[str, bool]] = None,
save_peft_format: bool = True,
**kwargs,
):
"""
Save a model and its configuration file to a directory, so that it can be re-loaded using the
[`~PreTrainedModel.from_pretrained`] class method.
Arguments:
save_directory (`str` or `os.PathLike`):
Directory to which to save. Will be created if it doesn't exist.
is_main_process (`bool`, *optional*, defaults to `True`):
Whether the process calling this is the main process or not. Useful when in distributed training like
TPUs and need to call this function on all processes. In this case, set `is_main_process=True` only on
the main process to avoid race conditions.
state_dict (nested dictionary of `torch.Tensor`):
The state dictionary of the model to save. Will default to `self.state_dict()`, but can be used to only
save parts of the model or if special precautions need to be taken when recovering the state dictionary
of a model (like when using model parallelism).
save_function (`Callable`):
The function to use to save the state dictionary. Useful on distributed training like TPUs when one
need to replace `torch.save` by another method.
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
max_shard_size (`int` or `str`, *optional*, defaults to `"5GB"`):
The maximum size for a checkpoint before being sharded. Checkpoints shard will then be each of size
lower than this size. If expressed as a string, needs to be digits followed by a unit (like `"5MB"`).
We default it to 5GB in order for models to be able to run easily on free-tier google colab instances
without CPU OOM issues.
<Tip warning={true}>
If a single weight of the model is bigger than `max_shard_size`, it will be in its own checkpoint shard
which will be bigger than `max_shard_size`.
</Tip>
safe_serialization (`bool`, *optional*, defaults to `True`):
Whether to save the model using `safetensors` or the traditional PyTorch way (that uses `pickle`).
variant (`str`, *optional*):
If specified, weights are saved in the format pytorch_model.<variant>.bin.
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
save_peft_format (`bool`, *optional*, defaults to `True`):
For backward compatibility with PEFT library, in case adapter weights are attached to the model, all
keys of the state dict of adapters needs to be pre-pended with `base_model.model`. Advanced users can
disable this behaviours by setting `save_peft_format` to `False`.
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
ignore_metadata_errors = kwargs.pop("ignore_metadata_errors", False)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
_hf_peft_config_loaded = getattr(self, "_hf_peft_config_loaded", False)
hf_quantizer = getattr(self, "hf_quantizer", None)
quantization_serializable = (
hf_quantizer is not None and isinstance(hf_quantizer, HfQuantizer) and hf_quantizer.is_serializable
)
if hf_quantizer is not None and not _hf_peft_config_loaded and not quantization_serializable:
raise ValueError(
f"The model is quantized with {hf_quantizer.quantization_config.quant_method} and is not serializable - check out the warnings from"
" the logger on the traceback to understand the reason why the quantized model is not serializable."
)
if "save_config" in kwargs:
warnings.warn(
"`save_config` is deprecated and will be removed in v5 of Transformers. Use `is_main_process` instead."
)
is_main_process = kwargs.pop("save_config")
if safe_serialization and not is_safetensors_available():
raise ImportError("`safe_serialization` requires the `safetensors library: `pip install safetensors`.")
if os.path.isfile(save_directory):
logger.error(f"Provided path ({save_directory}) should be a directory, not a file")
return
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
# Only save the model itself if we are using distributed training
model_to_save = unwrap_model(self)
# save the string version of dtype to the config, e.g. convert torch.float32 => "float32"
# we currently don't use this setting automatically, but may start to use with v5
dtype = get_parameter_dtype(model_to_save)
model_to_save.config.torch_dtype = str(dtype).split(".")[1]
# Attach architecture to the config
model_to_save.config.architectures = [model_to_save.__class__.__name__]
# If we have a custom model, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=self.config)
# Save the config
if is_main_process:
if not _hf_peft_config_loaded:
model_to_save.config.save_pretrained(save_directory)
if self.can_generate():
# generation config built from the model config + the model config holds generation kwargs -> generate
# may revert to legacy behavior if the two don't match
if (
model_to_save.generation_config._from_model_config
and model_to_save.config._has_non_default_generation_parameters()
):
new_generation_config = GenerationConfig.from_model_config(model_to_save.config)
if new_generation_config != model_to_save.generation_config:
logger.warning(
"Your generation config was originally created from the model config, but the model "
"config has changed since then. Unless you pass the `generation_config` argument to this "
"model's `generate` calls, they will revert to the legacy behavior where the base "
"`generate` parameterization is loaded from the model config instead. "
"To avoid this behavior and this warning, we recommend you to overwrite the generation "
"config model attribute before calling the model's `save_pretrained`, preferably also "
"removing any generation kwargs from the model config. This warning will be raised to an "
"exception in v4.41."
)
model_to_save.generation_config.save_pretrained(save_directory)
if _hf_peft_config_loaded:
logger.info(
"Detected adapters on the model, saving the model in the PEFT format, only adapter weights will be saved."
)
state_dict = model_to_save.get_adapter_state_dict()
if save_peft_format:
logger.info(
"To match the expected format of the PEFT library, all keys of the state dict of adapters will be pre-pended with `base_model.model`."
)
peft_state_dict = {}
for key, value in state_dict.items():
peft_state_dict[f"base_model.model.{key}"] = value
state_dict = peft_state_dict
active_adapter = self.active_adapters()
if len(active_adapter) > 1:
raise ValueError(
"Multiple active adapters detected, saving multiple active adapters is not supported yet. You can save adapters separately one by one "
"by iteratively calling `model.set_adapter(adapter_name)` then `model.save_pretrained(...)`"
)
active_adapter = active_adapter[0]
current_peft_config = self.peft_config[active_adapter]
current_peft_config.save_pretrained(save_directory)
# Save the model
if state_dict is None:
state_dict = model_to_save.state_dict()
# Translate state_dict from smp to hf if saving with smp >= 1.10
if IS_SAGEMAKER_MP_POST_1_10:
for smp_to_hf, _ in smp.state.module_manager.translate_functions:
state_dict = smp_to_hf(state_dict)
# Handle the case where some state_dict keys shouldn't be saved
if self._keys_to_ignore_on_save is not None:
for ignore_key in self._keys_to_ignore_on_save:
if ignore_key in state_dict.keys():
del state_dict[ignore_key]
if safe_serialization:
# Safetensors does not allow tensor aliasing.
# We're going to remove aliases before saving
ptrs = collections.defaultdict(list)
for name, tensor in state_dict.items():
# Sometimes in the state_dict we have non-tensor objects.
# e.g. in bitsandbytes we have some `str` objects in the state_dict
if isinstance(tensor, torch.Tensor):
ptrs[id_tensor_storage(tensor)].append(name)
else:
# In the non-tensor case, fall back to the pointer of the object itself
ptrs[id(tensor)].append(name)
# These are all the pointers of shared tensors.
shared_ptrs = {ptr: names for ptr, names in ptrs.items() if len(names) > 1}
error_names = []
to_delete_names = set()
# Recursively descend to find tied weight keys
_tied_weights_keys = _get_tied_weight_keys(self)
for names in shared_ptrs.values():
# Removing the keys which are declared as known duplicates on
# load. This allows to make sure the name which is kept is consistent.
if _tied_weights_keys is not None:
found = 0
for name in sorted(names):
matches_pattern = any(re.search(pat, name) for pat in _tied_weights_keys)
if matches_pattern and name in state_dict:
found += 1
if found < len(names):
to_delete_names.add(name)
# We are entering a place where the weights and the transformers configuration do NOT match.
shared_names, disjoint_names = _find_disjoint(shared_ptrs.values(), state_dict)
# Those are actually tensor sharing but disjoint from each other, we can safely clone them
# Reloaded won't have the same property, but it shouldn't matter in any meaningful way.
for name in disjoint_names:
state_dict[name] = state_dict[name].clone()
# When not all duplicates have been cleaned, still remove those keys, but put a clear warning.
# If the link between tensors was done at runtime then `from_pretrained` will not get
# the key back leading to random tensor. A proper warning will be shown
# during reload (if applicable), but since the file is not necessarily compatible with
# the config, better show a proper warning.
shared_names, identical_names = _find_identical(shared_names, state_dict)
# delete tensors that have identical storage
for inames in identical_names:
known = inames.intersection(to_delete_names)
for name in known:
del state_dict[name]
unknown = inames.difference(to_delete_names)
if len(unknown) > 1:
error_names.append(unknown)
if shared_names:
error_names.append(set(shared_names))
if len(error_names) > 0:
raise RuntimeError(
f"The weights trying to be saved contained shared tensors {error_names} that are mismatching the transformers base configuration. Try saving using `safe_serialization=False` or remove this tensor sharing.",
)
# Shard the model if it is too big.
if not _hf_peft_config_loaded:
weights_name = SAFE_WEIGHTS_NAME if safe_serialization else WEIGHTS_NAME
weights_name = _add_variant(weights_name, variant)
else:
weights_name = ADAPTER_SAFE_WEIGHTS_NAME if safe_serialization else ADAPTER_WEIGHTS_NAME
shards, index = shard_checkpoint(state_dict, max_shard_size=max_shard_size, weights_name=weights_name)
# Clean the folder from a previous save
for filename in os.listdir(save_directory):
full_filename = os.path.join(save_directory, filename)
# If we have a shard file that is not going to be replaced, we delete it, but only from the main process
# in distributed settings to avoid race conditions.
weights_no_suffix = weights_name.replace(".bin", "").replace(".safetensors", "")
# make sure that file to be deleted matches format of sharded file, e.g. pytorch_model-00001-of-00005
filename_no_suffix = filename.replace(".bin", "").replace(".safetensors", "")
reg = re.compile(r"(.*?)-\d{5}-of-\d{5}")
if (
filename.startswith(weights_no_suffix)
and os.path.isfile(full_filename)
and filename not in shards.keys()
and is_main_process
and reg.fullmatch(filename_no_suffix) is not None
):
os.remove(full_filename)
# Save the model
for shard_file, shard in shards.items():
if safe_serialization:
# At some point we will need to deal better with save_function (used for TPU and other distributed
# joyfulness), but for now this enough.
safe_save_file(shard, os.path.join(save_directory, shard_file), metadata={"format": "pt"})
else:
save_function(shard, os.path.join(save_directory, shard_file))
if index is None:
path_to_weights = os.path.join(save_directory, weights_name)
logger.info(f"Model weights saved in {path_to_weights}")
else:
save_index_file = SAFE_WEIGHTS_INDEX_NAME if safe_serialization else WEIGHTS_INDEX_NAME
save_index_file = os.path.join(save_directory, _add_variant(save_index_file, variant))
# Save the index as well
with open(save_index_file, "w", encoding="utf-8") as f:
content = json.dumps(index, indent=2, sort_keys=True) + "\n"
f.write(content)
logger.info(
f"The model is bigger than the maximum size per checkpoint ({max_shard_size}) and is going to be "
f"split in {len(shards)} checkpoint shards. You can find where each parameters has been saved in the "
f"index located at {save_index_file}."
)
if push_to_hub:
# Eventually create an empty model card
model_card = create_and_tag_model_card(
repo_id, self.model_tags, token=token, ignore_metadata_errors=ignore_metadata_errors
)
# Update model card if needed:
model_card.save(os.path.join(save_directory, "README.md"))
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=token,
)
@wraps(PushToHubMixin.push_to_hub)
def push_to_hub(self, *args, **kwargs):
tags = self.model_tags if self.model_tags is not None else []
tags_kwargs = kwargs.get("tags", [])
if isinstance(tags_kwargs, str):
tags_kwargs = [tags_kwargs]
for tag in tags_kwargs:
if tag not in tags:
tags.append(tag)
if tags:
kwargs["tags"] = tags
return super().push_to_hub(*args, **kwargs)
def get_memory_footprint(self, return_buffers=True):
r"""
Get the memory footprint of a model. This will return the memory footprint of the current model in bytes.
Useful to benchmark the memory footprint of the current model and design some tests. Solution inspired from the
PyTorch discussions: https://discuss.pytorch.org/t/gpu-memory-that-model-uses/56822/2
Arguments:
return_buffers (`bool`, *optional*, defaults to `True`):
Whether to return the size of the buffer tensors in the computation of the memory footprint. Buffers
are tensors that do not require gradients and not registered as parameters. E.g. mean and std in batch
norm layers. Please see: https://discuss.pytorch.org/t/what-pytorch-means-by-buffers/120266/2
"""
mem = sum([param.nelement() * param.element_size() for param in self.parameters()])
if return_buffers:
mem_bufs = sum([buf.nelement() * buf.element_size() for buf in self.buffers()])
mem = mem + mem_bufs
return mem
@wraps(torch.nn.Module.cuda)
def cuda(self, *args, **kwargs):
if getattr(self, "quantization_method", None) == QuantizationMethod.HQQ:
raise ValueError("`.cuda` is not supported for HQQ-quantized models.")
# Checks if the model has been loaded in 8-bit
if getattr(self, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES:
raise ValueError(
"Calling `cuda()` is not supported for `4-bit` or `8-bit` quantized models. Please use the model as it is, since the"
" model has already been set to the correct devices and casted to the correct `dtype`."
)
else:
return super().cuda(*args, **kwargs)
@wraps(torch.nn.Module.to)
def to(self, *args, **kwargs):
if getattr(self, "quantization_method", None) == QuantizationMethod.HQQ:
raise ValueError("`.to` is not supported for HQQ-quantized models.")
# Checks if the model has been loaded in 8-bit
if getattr(self, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES:
raise ValueError(
"`.to` is not supported for `4-bit` or `8-bit` bitsandbytes models. Please use the model as it is, since the"
" model has already been set to the correct devices and casted to the correct `dtype`."
)
elif getattr(self, "quantization_method", None) == QuantizationMethod.GPTQ:
# For GPTQ models, we prevent users from casting the model to another dytpe to restrict unwanted behaviours.
# the correct API should be to load the model with the desired dtype directly through `from_pretrained`.
dtype_present_in_args = False
if "dtype" not in kwargs:
for arg in args:
if isinstance(arg, torch.dtype):
dtype_present_in_args = True
break
else:
dtype_present_in_args = True
if dtype_present_in_args:
raise ValueError(
"You cannot cast a GPTQ model in a new `dtype`. Make sure to load the model using `from_pretrained` using the desired"
" `dtype` by passing the correct `torch_dtype` argument."
)
return super().to(*args, **kwargs)
def half(self, *args):
# Checks if the model is quantized
if getattr(self, "is_quantized", False):
raise ValueError(
"`.half()` is not supported for quantized model. Please use the model as it is, since the"
" model has already been casted to the correct `dtype`."
)
else:
return super().half(*args)
def float(self, *args):
# Checks if the model is quantized
if getattr(self, "is_quantized", False):
raise ValueError(
"`.float()` is not supported for quantized model. Please use the model as it is, since the"
" model has already been casted to the correct `dtype`."
)
else:
return super().float(*args)
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Optional[Union[str, os.PathLike]],
*model_args,
config: Optional[Union[PretrainedConfig, str, os.PathLike]] = None,
cache_dir: Optional[Union[str, os.PathLike]] = None,
ignore_mismatched_sizes: bool = False,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
use_safetensors: bool = None,
**kwargs,
):
r"""
Instantiate a pretrained pytorch model from a pre-trained model configuration.
The model is set in evaluation mode by default using `model.eval()` (Dropout modules are deactivated). To train
the model, you should first set it back in training mode with `model.train()`.
The warning *Weights from XXX not initialized from pretrained model* means that the weights of XXX do not come
pretrained with the rest of the model. It is up to you to train those weights with a downstream fine-tuning
task.
The warning *Weights from XXX not used in YYY* means that the layer XXX is not used by YYY, therefore those
weights are discarded.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`, *optional*):
Can be either:
- A string, the *model id* of a pretrained model hosted inside a model repo on huggingface.co.
- A path to a *directory* containing model weights saved using
[`~PreTrainedModel.save_pretrained`], e.g., `./my_model_directory/`.
- A path or url to a *tensorflow index checkpoint file* (e.g, `./tf_model/model.ckpt.index`). In
this case, `from_tf` should be set to `True` and a configuration object should be provided as
`config` argument. This loading path is slower than converting the TensorFlow checkpoint in a
PyTorch model using the provided conversion scripts and loading the PyTorch model afterwards.
- A path or url to a model folder containing a *flax checkpoint file* in *.msgpack* format (e.g,
`./flax_model/` containing `flax_model.msgpack`). In this case, `from_flax` should be set to
`True`.
- `None` if you are both providing the configuration and state dictionary (resp. with keyword
arguments `config` and `state_dict`).
model_args (sequence of positional arguments, *optional*):
All remaining positional arguments will be passed to the underlying model's `__init__` method.
config (`Union[PretrainedConfig, str, os.PathLike]`, *optional*):
Can be either:
- an instance of a class derived from [`PretrainedConfig`],
- a string or path valid as input to [`~PretrainedConfig.from_pretrained`].
Configuration for the model to use instead of an automatically loaded configuration. Configuration can
be automatically loaded when:
- The model is a model provided by the library (loaded with the *model id* string of a pretrained
model).
- The model was saved using [`~PreTrainedModel.save_pretrained`] and is reloaded by supplying the
save directory.
- The model is loaded by supplying a local directory as `pretrained_model_name_or_path` and a
configuration JSON file named *config.json* is found in the directory.
state_dict (`Dict[str, torch.Tensor]`, *optional*):
A state dictionary to use instead of a state dictionary loaded from saved weights file.
This option can be used if you want to create a model from a pretrained configuration but load your own
weights. In this case though, you should check if using [`~PreTrainedModel.save_pretrained`] and
[`~PreTrainedModel.from_pretrained`] is not a simpler option.
cache_dir (`Union[str, os.PathLike]`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the
standard cache should not be used.
from_tf (`bool`, *optional*, defaults to `False`):
Load the model weights from a TensorFlow checkpoint save file (see docstring of
`pretrained_model_name_or_path` argument).
from_flax (`bool`, *optional*, defaults to `False`):
Load the model weights from a Flax checkpoint save file (see docstring of
`pretrained_model_name_or_path` argument).
ignore_mismatched_sizes (`bool`, *optional*, defaults to `False`):
Whether or not to raise an error if some of the weights from the checkpoint do not have the same size
as the weights of the model (if for instance, you are instantiating a model with 10 labels from a
checkpoint with 3 labels).
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force the (re-)download of the model weights and configuration files, overriding the
cached versions if they exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received files. Will attempt to resume the download if such a
file exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request.
output_loading_info(`bool`, *optional*, defaults to `False`):
Whether ot not to also return a dictionary containing missing keys, unexpected keys and error messages.
local_files_only(`bool`, *optional*, defaults to `False`):
Whether or not to only look at local files (i.e., do not try to download the model).
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
<Tip>
To test a pull request you made on the Hub, you can pass `revision="refs/pr/<pr_number>".
</Tip>
mirror (`str`, *optional*):
Mirror source to accelerate downloads in China. If you are from China and have an accessibility
problem, you can set this option to resolve it. Note that we do not guarantee the timeliness or safety.
Please refer to the mirror site for more information.
_fast_init(`bool`, *optional*, defaults to `True`):
Whether or not to disable fast initialization.
<Tip warning={true}>
One should only disable *_fast_init* to ensure backwards compatibility with `transformers.__version__ <
4.6.0` for seeded model initialization. This argument will be removed at the next major version. See
[pull request 11471](https://github.com/huggingface/transformers/pull/11471) for more information.
</Tip>
attn_implementation (`str`, *optional*):
The attention implementation to use in the model (if relevant). Can be any of `"eager"` (manual implementation of the attention), `"sdpa"` (using [`F.scaled_dot_product_attention`](https://pytorch.org/docs/master/generated/torch.nn.functional.scaled_dot_product_attention.html)), or `"flash_attention_2"` (using [Dao-AILab/flash-attention](https://github.com/Dao-AILab/flash-attention)). By default, if available, SDPA will be used for torch>=2.1.1. The default is otherwise the manual `"eager"` implementation.
> Parameters for big model inference
low_cpu_mem_usage(`bool`, *optional*):
Tries to not use more than 1x model size in CPU memory (including peak memory) while loading the model.
This is an experimental feature and a subject to change at any moment.
torch_dtype (`str` or `torch.dtype`, *optional*):
Override the default `torch.dtype` and load the model under a specific `dtype`. The different options
are:
1. `torch.float16` or `torch.bfloat16` or `torch.float`: load in a specified
`dtype`, ignoring the model's `config.torch_dtype` if one exists. If not specified
- the model will get loaded in `torch.float` (fp32).
2. `"auto"` - A `torch_dtype` entry in the `config.json` file of the model will be
attempted to be used. If this entry isn't found then next check the `dtype` of the first weight in
the checkpoint that's of a floating point type and use that as `dtype`. This will load the model
using the `dtype` it was saved in at the end of the training. It can't be used as an indicator of how
the model was trained. Since it could be trained in one of half precision dtypes, but saved in fp32.
<Tip>
For some models the `dtype` they were trained in is unknown - you may try to check the model's paper or
reach out to the authors and ask them to add this information to the model's card and to insert the
`torch_dtype` entry in `config.json` on the hub.
</Tip>
device_map (`str` or `Dict[str, Union[int, str, torch.device]]` or `int` or `torch.device`, *optional*):
A map that specifies where each submodule should go. It doesn't need to be refined to each
parameter/buffer name, once a given module name is inside, every submodule of it will be sent to the
same device. If we only pass the device (*e.g.*, `"cpu"`, `"cuda:1"`, `"mps"`, or a GPU ordinal rank
like `1`) on which the model will be allocated, the device map will map the entire model to this
device. Passing `device_map = 0` means put the whole model on GPU 0.
To have Accelerate compute the most optimized `device_map` automatically, set `device_map="auto"`. For
more information about each option see [designing a device
map](https://hf.co/docs/accelerate/main/en/usage_guides/big_modeling#designing-a-device-map).
max_memory (`Dict`, *optional*):
A dictionary device identifier to maximum memory. Will default to the maximum memory available for each
GPU and the available CPU RAM if unset.
offload_folder (`str` or `os.PathLike`, *optional*):
If the `device_map` contains any value `"disk"`, the folder where we will offload weights.
offload_state_dict (`bool`, *optional*):
If `True`, will temporarily offload the CPU state dict to the hard drive to avoid getting out of CPU
RAM if the weight of the CPU state dict + the biggest shard of the checkpoint does not fit. Defaults to
`True` when there is some disk offload.
offload_buffers (`bool`, *optional*):
Whether or not to offload the buffers with the model parameters.
quantization_config (`Union[QuantizationConfigMixin,Dict]`, *optional*):
A dictionary of configuration parameters or a QuantizationConfigMixin object for quantization (e.g
bitsandbytes, gptq). There may be other quantization-related kwargs, including `load_in_4bit` and
`load_in_8bit`, which are parsed by QuantizationConfigParser. Supported only for bitsandbytes
quantizations and not preferred. consider inserting all such arguments into quantization_config
instead.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
variant (`str`, *optional*):
If specified load weights from `variant` filename, *e.g.* pytorch_model.<variant>.bin. `variant` is
ignored when using `from_tf` or `from_flax`.
use_safetensors (`bool`, *optional*, defaults to `None`):
Whether or not to use `safetensors` checkpoints. Defaults to `None`. If not specified and `safetensors`
is not installed, it will be set to `False`.
kwargs (remaining dictionary of keyword arguments, *optional*):
Can be used to update the configuration object (after it being loaded) and initiate the model (e.g.,
`output_attentions=True`). Behaves differently depending on whether a `config` is provided or
automatically loaded:
- If a configuration is provided with `config`, `**kwargs` will be directly passed to the
underlying model's `__init__` method (we assume all relevant updates to the configuration have
already been done)
- If a configuration is not provided, `kwargs` will be first passed to the configuration class
initialization function ([`~PretrainedConfig.from_pretrained`]). Each key of `kwargs` that
corresponds to a configuration attribute will be used to override said attribute with the
supplied `kwargs` value. Remaining keys that do not correspond to any configuration attribute
will be passed to the underlying model's `__init__` function.
<Tip>
Activate the special ["offline-mode"](https://huggingface.co/transformers/installation.html#offline-mode) to
use this method in a firewalled environment.
</Tip>
Examples:
```python
>>> from transformers import BertConfig, BertModel
>>> # Download model and configuration from huggingface.co and cache.
>>> model = BertModel.from_pretrained("google-bert/bert-base-uncased")
>>> # Model was saved using *save_pretrained('./test/saved_model/')* (for example purposes, not runnable).
>>> model = BertModel.from_pretrained("./test/saved_model/")
>>> # Update configuration during loading.
>>> model = BertModel.from_pretrained("google-bert/bert-base-uncased", output_attentions=True)
>>> assert model.config.output_attentions == True
>>> # Loading from a TF checkpoint file instead of a PyTorch model (slower, for example purposes, not runnable).
>>> config = BertConfig.from_json_file("./tf_model/my_tf_model_config.json")
>>> model = BertModel.from_pretrained("./tf_model/my_tf_checkpoint.ckpt.index", from_tf=True, config=config)
>>> # Loading from a Flax checkpoint file instead of a PyTorch model (slower)
>>> model = BertModel.from_pretrained("google-bert/bert-base-uncased", from_flax=True)
```
* `low_cpu_mem_usage` algorithm:
This is an experimental function that loads the model using ~1x model size CPU memory
Here is how it works:
1. save which state_dict keys we have
2. drop state_dict before the model is created, since the latter takes 1x model size CPU memory
3. after the model has been instantiated switch to the meta device all params/buffers that
are going to be replaced from the loaded state_dict
4. load state_dict 2nd time
5. replace the params/buffers from the state_dict
Currently, it can't handle deepspeed ZeRO stage 3 and ignores loading errors
"""
state_dict = kwargs.pop("state_dict", None)
from_tf = kwargs.pop("from_tf", False)
from_flax = kwargs.pop("from_flax", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
output_loading_info = kwargs.pop("output_loading_info", False)
use_auth_token = kwargs.pop("use_auth_token", None)
trust_remote_code = kwargs.pop("trust_remote_code", None)
_ = kwargs.pop("mirror", None)
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
_fast_init = kwargs.pop("_fast_init", True)
torch_dtype = kwargs.pop("torch_dtype", None)
low_cpu_mem_usage = kwargs.pop("low_cpu_mem_usage", None)
device_map = kwargs.pop("device_map", None)
max_memory = kwargs.pop("max_memory", None)
offload_folder = kwargs.pop("offload_folder", None)
offload_state_dict = kwargs.pop("offload_state_dict", False)
offload_buffers = kwargs.pop("offload_buffers", False)
load_in_8bit = kwargs.pop("load_in_8bit", False)
load_in_4bit = kwargs.pop("load_in_4bit", False)
quantization_config = kwargs.pop("quantization_config", None)
subfolder = kwargs.pop("subfolder", "")
commit_hash = kwargs.pop("_commit_hash", None)
variant = kwargs.pop("variant", None)
adapter_kwargs = kwargs.pop("adapter_kwargs", {})
adapter_name = kwargs.pop("adapter_name", "default")
use_flash_attention_2 = kwargs.pop("use_flash_attention_2", False)
if is_fsdp_enabled():
low_cpu_mem_usage = True
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None and adapter_kwargs is not None and "token" not in adapter_kwargs:
adapter_kwargs["token"] = token
if use_safetensors is None and not is_safetensors_available():
use_safetensors = False
if trust_remote_code is True:
logger.warning(
"The argument `trust_remote_code` is to be used with Auto classes. It has no effect here and is"
" ignored."
)
if commit_hash is None:
if not isinstance(config, PretrainedConfig):
# We make a call to the config file first (which may be absent) to get the commit hash as soon as possible
resolved_config_file = cached_file(
pretrained_model_name_or_path,
CONFIG_NAME,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_raise_exceptions_for_gated_repo=False,
_raise_exceptions_for_missing_entries=False,
_raise_exceptions_for_connection_errors=False,
)
commit_hash = extract_commit_hash(resolved_config_file, commit_hash)
else:
commit_hash = getattr(config, "_commit_hash", None)
if is_peft_available():
_adapter_model_path = adapter_kwargs.pop("_adapter_model_path", None)
if _adapter_model_path is None:
_adapter_model_path = find_adapter_config_file(
pretrained_model_name_or_path,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
_commit_hash=commit_hash,
**adapter_kwargs,
)
if _adapter_model_path is not None and os.path.isfile(_adapter_model_path):
with open(_adapter_model_path, "r", encoding="utf-8") as f:
_adapter_model_path = pretrained_model_name_or_path
pretrained_model_name_or_path = json.load(f)["base_model_name_or_path"]
else:
_adapter_model_path = None
# change device_map into a map if we passed an int, a str or a torch.device
if isinstance(device_map, torch.device):
device_map = {"": device_map}
elif isinstance(device_map, str) and device_map not in ["auto", "balanced", "balanced_low_0", "sequential"]:
try:
device_map = {"": torch.device(device_map)}
except RuntimeError:
raise ValueError(
"When passing device_map as a string, the value needs to be a device name (e.g. cpu, cuda:0) or "
f"'auto', 'balanced', 'balanced_low_0', 'sequential' but found {device_map}."
)
elif isinstance(device_map, int):
if device_map < 0:
raise ValueError(
"You can't pass device_map as a negative int. If you want to put the model on the cpu, pass device_map = 'cpu' "
)
else:
device_map = {"": device_map}
if device_map is not None:
if low_cpu_mem_usage is None:
low_cpu_mem_usage = True
elif not low_cpu_mem_usage:
raise ValueError("Passing along a `device_map` requires `low_cpu_mem_usage=True`")
if low_cpu_mem_usage:
if is_deepspeed_zero3_enabled():
raise ValueError(
"DeepSpeed Zero-3 is not compatible with `low_cpu_mem_usage=True` or with passing a `device_map`."
)
elif not is_accelerate_available():
raise ImportError(
"Using `low_cpu_mem_usage=True` or a `device_map` requires Accelerate: `pip install accelerate`"
)
# handling bnb config from kwargs, remove after `load_in_{4/8}bit` deprecation.
if load_in_4bit or load_in_8bit:
if quantization_config is not None:
raise ValueError(
"You can't pass `load_in_4bit`or `load_in_8bit` as a kwarg when passing "
"`quantization_config` argument at the same time."
)
# preparing BitsAndBytesConfig from kwargs
config_dict = {k: v for k, v in kwargs.items() if k in inspect.signature(BitsAndBytesConfig).parameters}
config_dict = {**config_dict, "load_in_4bit": load_in_4bit, "load_in_8bit": load_in_8bit}
quantization_config, kwargs = BitsAndBytesConfig.from_dict(
config_dict=config_dict, return_unused_kwargs=True, **kwargs
)
logger.warning(
"The `load_in_4bit` and `load_in_8bit` arguments are deprecated and will be removed in the future versions. "
"Please, pass a `BitsAndBytesConfig` object in `quantization_config` argument instead."
)
from_pt = not (from_tf | from_flax)
user_agent = {"file_type": "model", "framework": "pytorch", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
# Load config if we don't provide a configuration
if not isinstance(config, PretrainedConfig):
config_path = config if config is not None else pretrained_model_name_or_path
config, model_kwargs = cls.config_class.from_pretrained(
config_path,
cache_dir=cache_dir,
return_unused_kwargs=True,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
**kwargs,
)
else:
# In case one passes a config to `from_pretrained` + "attn_implementation"
# override the `_attn_implementation` attribute to `attn_implementation` of the kwargs
# Please see: https://github.com/huggingface/transformers/issues/28038
# Overwrite `config._attn_implementation` by the one from the kwargs --> in auto-factory
# we pop attn_implementation from the kwargs but this handles the case where users
# passes manually the config to `from_pretrained`.
config = copy.deepcopy(config)
kwarg_attn_imp = kwargs.pop("attn_implementation", None)
if kwarg_attn_imp is not None:
config._attn_implementation = kwarg_attn_imp
model_kwargs = kwargs
pre_quantized = getattr(config, "quantization_config", None) is not None
if pre_quantized or quantization_config is not None:
if pre_quantized:
config.quantization_config = AutoHfQuantizer.merge_quantization_configs(
config.quantization_config, quantization_config
)
else:
config.quantization_config = quantization_config
hf_quantizer = AutoHfQuantizer.from_config(config.quantization_config, pre_quantized=pre_quantized)
else:
hf_quantizer = None
if hf_quantizer is not None:
hf_quantizer.validate_environment(
torch_dtype=torch_dtype, from_tf=from_tf, from_flax=from_flax, device_map=device_map
)
torch_dtype = hf_quantizer.update_torch_dtype(torch_dtype)
device_map = hf_quantizer.update_device_map(device_map)
# In order to ensure popular quantization methods are supported. Can be disable with `disable_telemetry`
user_agent["quant"] = hf_quantizer.quantization_config.quant_method.value
# Force-set to `True` for more mem efficiency
if low_cpu_mem_usage is None:
low_cpu_mem_usage = True
logger.warning("`low_cpu_mem_usage` was None, now set to True since model is quantized.")
is_quantized = hf_quantizer is not None
# This variable will flag if we're loading a sharded checkpoint. In this case the archive file is just the
# index of the files.
is_sharded = False
sharded_metadata = None
# Load model
loading_info = None
# Keep in fp32 modules
keep_in_fp32_modules = None
use_keep_in_fp32_modules = False
if pretrained_model_name_or_path is not None:
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if is_local:
if from_tf and os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, TF_WEIGHTS_NAME + ".index")
):
# Load from a TF 1.0 checkpoint in priority if from_tf
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, TF_WEIGHTS_NAME + ".index")
elif from_tf and os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, TF2_WEIGHTS_NAME)
):
# Load from a TF 2.0 checkpoint in priority if from_tf
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, TF2_WEIGHTS_NAME)
elif from_flax and os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_NAME)
):
# Load from a Flax checkpoint in priority if from_flax
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_NAME)
elif use_safetensors is not False and os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, _add_variant(SAFE_WEIGHTS_NAME, variant))
):
# Load from a safetensors checkpoint
archive_file = os.path.join(
pretrained_model_name_or_path, subfolder, _add_variant(SAFE_WEIGHTS_NAME, variant)
)
elif use_safetensors is not False and os.path.isfile(
os.path.join(
pretrained_model_name_or_path, subfolder, _add_variant(SAFE_WEIGHTS_INDEX_NAME, variant)
)
):
# Load from a sharded safetensors checkpoint
archive_file = os.path.join(
pretrained_model_name_or_path, subfolder, _add_variant(SAFE_WEIGHTS_INDEX_NAME, variant)
)
is_sharded = True
elif os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, _add_variant(WEIGHTS_NAME, variant))
):
# Load from a PyTorch checkpoint
archive_file = os.path.join(
pretrained_model_name_or_path, subfolder, _add_variant(WEIGHTS_NAME, variant)
)
elif os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, _add_variant(WEIGHTS_INDEX_NAME, variant))
):
# Load from a sharded PyTorch checkpoint
archive_file = os.path.join(
pretrained_model_name_or_path, subfolder, _add_variant(WEIGHTS_INDEX_NAME, variant)
)
is_sharded = True
# At this stage we don't have a weight file so we will raise an error.
elif os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, TF_WEIGHTS_NAME + ".index")
) or os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, TF2_WEIGHTS_NAME)):
raise EnvironmentError(
f"Error no file named {_add_variant(WEIGHTS_NAME, variant)} found in directory"
f" {pretrained_model_name_or_path} but there is a file for TensorFlow weights. Use"
" `from_tf=True` to load this model from those weights."
)
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_NAME)):
raise EnvironmentError(
f"Error no file named {_add_variant(WEIGHTS_NAME, variant)} found in directory"
f" {pretrained_model_name_or_path} but there is a file for Flax weights. Use `from_flax=True`"
" to load this model from those weights."
)
elif use_safetensors:
raise EnvironmentError(
f"Error no file named {_add_variant(SAFE_WEIGHTS_NAME, variant)} found in directory"
f" {pretrained_model_name_or_path}."
)
else:
raise EnvironmentError(
f"Error no file named {_add_variant(WEIGHTS_NAME, variant)}, {TF2_WEIGHTS_NAME},"
f" {TF_WEIGHTS_NAME + '.index'} or {FLAX_WEIGHTS_NAME} found in directory"
f" {pretrained_model_name_or_path}."
)
elif os.path.isfile(os.path.join(subfolder, pretrained_model_name_or_path)):
archive_file = pretrained_model_name_or_path
is_local = True
elif os.path.isfile(os.path.join(subfolder, pretrained_model_name_or_path + ".index")):
if not from_tf:
raise ValueError(
f"We found a TensorFlow checkpoint at {pretrained_model_name_or_path + '.index'}, please set "
"from_tf to True to load from this checkpoint."
)
archive_file = os.path.join(subfolder, pretrained_model_name_or_path + ".index")
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
filename = pretrained_model_name_or_path
resolved_archive_file = download_url(pretrained_model_name_or_path)
else:
# set correct filename
if from_tf:
filename = TF2_WEIGHTS_NAME
elif from_flax:
filename = FLAX_WEIGHTS_NAME
elif use_safetensors is not False:
filename = _add_variant(SAFE_WEIGHTS_NAME, variant)
else:
filename = _add_variant(WEIGHTS_NAME, variant)
try:
# Load from URL or cache if already cached
cached_file_kwargs = {
"cache_dir": cache_dir,
"force_download": force_download,
"proxies": proxies,
"resume_download": resume_download,
"local_files_only": local_files_only,
"token": token,
"user_agent": user_agent,
"revision": revision,
"subfolder": subfolder,
"_raise_exceptions_for_gated_repo": False,
"_raise_exceptions_for_missing_entries": False,
"_commit_hash": commit_hash,
}
resolved_archive_file = cached_file(pretrained_model_name_or_path, filename, **cached_file_kwargs)
# Since we set _raise_exceptions_for_missing_entries=False, we don't get an exception but a None
# result when internet is up, the repo and revision exist, but the file does not.
if resolved_archive_file is None and filename == _add_variant(SAFE_WEIGHTS_NAME, variant):
# Maybe the checkpoint is sharded, we try to grab the index name in this case.
resolved_archive_file = cached_file(
pretrained_model_name_or_path,
_add_variant(SAFE_WEIGHTS_INDEX_NAME, variant),
**cached_file_kwargs,
)
if resolved_archive_file is not None:
is_sharded = True
elif use_safetensors:
if revision == "main":
resolved_archive_file, revision, is_sharded = auto_conversion(
pretrained_model_name_or_path, **cached_file_kwargs
)
cached_file_kwargs["revision"] = revision
if resolved_archive_file is None:
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {_add_variant(SAFE_WEIGHTS_NAME, variant)} or {_add_variant(SAFE_WEIGHTS_INDEX_NAME, variant)} "
"and thus cannot be loaded with `safetensors`. Please make sure that the model has "
"been saved with `safe_serialization=True` or do not set `use_safetensors=True`."
)
else:
# This repo has no safetensors file of any kind, we switch to PyTorch.
filename = _add_variant(WEIGHTS_NAME, variant)
resolved_archive_file = cached_file(
pretrained_model_name_or_path, filename, **cached_file_kwargs
)
if resolved_archive_file is None and filename == _add_variant(WEIGHTS_NAME, variant):
# Maybe the checkpoint is sharded, we try to grab the index name in this case.
resolved_archive_file = cached_file(
pretrained_model_name_or_path,
_add_variant(WEIGHTS_INDEX_NAME, variant),
**cached_file_kwargs,
)
if resolved_archive_file is not None:
is_sharded = True
if resolved_archive_file is not None:
if filename in [WEIGHTS_NAME, WEIGHTS_INDEX_NAME]:
# If the PyTorch file was found, check if there is a safetensors file on the repository
# If there is no safetensors file on the repositories, start an auto conversion
safe_weights_name = SAFE_WEIGHTS_INDEX_NAME if is_sharded else SAFE_WEIGHTS_NAME
has_file_kwargs = {
"revision": revision,
"proxies": proxies,
"token": token,
}
cached_file_kwargs = {
"cache_dir": cache_dir,
"force_download": force_download,
"resume_download": resume_download,
"local_files_only": local_files_only,
"user_agent": user_agent,
"subfolder": subfolder,
"_raise_exceptions_for_gated_repo": False,
"_raise_exceptions_for_missing_entries": False,
"_commit_hash": commit_hash,
**has_file_kwargs,
}
if not has_file(pretrained_model_name_or_path, safe_weights_name, **has_file_kwargs):
Thread(
target=auto_conversion,
args=(pretrained_model_name_or_path,),
kwargs={"ignore_errors_during_conversion": True, **cached_file_kwargs},
name="Thread-autoconversion",
).start()
else:
# Otherwise, no PyTorch file was found, maybe there is a TF or Flax model file.
# We try those to give a helpful error message.
has_file_kwargs = {
"revision": revision,
"proxies": proxies,
"token": token,
}
if has_file(pretrained_model_name_or_path, TF2_WEIGHTS_NAME, **has_file_kwargs):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {_add_variant(WEIGHTS_NAME, variant)} but there is a file for TensorFlow weights."
" Use `from_tf=True` to load this model from those weights."
)
elif has_file(pretrained_model_name_or_path, FLAX_WEIGHTS_NAME, **has_file_kwargs):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {_add_variant(WEIGHTS_NAME, variant)} but there is a file for Flax weights. Use"
" `from_flax=True` to load this model from those weights."
)
elif variant is not None and has_file(
pretrained_model_name_or_path, WEIGHTS_NAME, **has_file_kwargs
):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {_add_variant(WEIGHTS_NAME, variant)} but there is a file without the variant"
f" {variant}. Use `variant=None` to load this model from those weights."
)
else:
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {_add_variant(WEIGHTS_NAME, variant)}, {TF2_WEIGHTS_NAME}, {TF_WEIGHTS_NAME} or"
f" {FLAX_WEIGHTS_NAME}."
)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted
# to the original exception.
raise
except Exception as e:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load the model for '{pretrained_model_name_or_path}'. If you were trying to load it"
" from 'https://huggingface.co/models', make sure you don't have a local directory with the"
f" same name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a"
f" directory containing a file named {_add_variant(WEIGHTS_NAME, variant)},"
f" {TF2_WEIGHTS_NAME}, {TF_WEIGHTS_NAME} or {FLAX_WEIGHTS_NAME}."
) from e
if is_local:
logger.info(f"loading weights file {archive_file}")
resolved_archive_file = archive_file
else:
logger.info(f"loading weights file {filename} from cache at {resolved_archive_file}")
else:
resolved_archive_file = None
# We'll need to download and cache each checkpoint shard if the checkpoint is sharded.
if is_sharded:
# rsolved_archive_file becomes a list of files that point to the different checkpoint shards in this case.
resolved_archive_file, sharded_metadata = get_checkpoint_shard_files(
pretrained_model_name_or_path,
resolved_archive_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
_commit_hash=commit_hash,
)
if (
is_safetensors_available()
and isinstance(resolved_archive_file, str)
and resolved_archive_file.endswith(".safetensors")
):
with safe_open(resolved_archive_file, framework="pt") as f:
metadata = f.metadata()
if metadata.get("format") == "pt":
pass
elif metadata.get("format") == "tf":
from_tf = True
logger.info("A TensorFlow safetensors file is being loaded in a PyTorch model.")
elif metadata.get("format") == "flax":
from_flax = True
logger.info("A Flax safetensors file is being loaded in a PyTorch model.")
elif metadata.get("format") == "mlx":
# This is a mlx file, we assume weights are compatible with pt
pass
else:
raise ValueError(
f"Incompatible safetensors file. File metadata is not ['pt', 'tf', 'flax', 'mlx'] but {metadata.get('format')}"
)
from_pt = not (from_tf | from_flax)
# load pt weights early so that we know which dtype to init the model under
if from_pt:
if not is_sharded and state_dict is None:
# Time to load the checkpoint
state_dict = load_state_dict(resolved_archive_file)
# set dtype to instantiate the model under:
# 1. If torch_dtype is not None, we use that dtype
# 2. If torch_dtype is "auto", we auto-detect dtype from the loaded state_dict, by checking its first
# weights entry that is of a floating type - we assume all floating dtype weights are of the same dtype
# we also may have config.torch_dtype available, but we won't rely on it till v5
dtype_orig = None
if torch_dtype is not None:
if isinstance(torch_dtype, str):
if torch_dtype == "auto":
if hasattr(config, "torch_dtype") and config.torch_dtype is not None:
torch_dtype = config.torch_dtype
logger.info(f"Will use torch_dtype={torch_dtype} as defined in model's config object")
else:
if is_sharded and "dtype" in sharded_metadata:
torch_dtype = sharded_metadata["dtype"]
elif not is_sharded:
torch_dtype = get_state_dict_dtype(state_dict)
else:
one_state_dict = load_state_dict(resolved_archive_file[0])
torch_dtype = get_state_dict_dtype(one_state_dict)
del one_state_dict # free CPU memory
logger.info(
"Since the `torch_dtype` attribute can't be found in model's config object, "
"will use torch_dtype={torch_dtype} as derived from model's weights"
)
else:
raise ValueError(
f'`torch_dtype` can be either `torch.dtype` or `"auto"`, but received {torch_dtype}'
)
dtype_orig = cls._set_default_torch_dtype(torch_dtype)
# Check if `_keep_in_fp32_modules` is not None
use_keep_in_fp32_modules = (cls._keep_in_fp32_modules is not None) and (
(torch_dtype == torch.float16) or hasattr(hf_quantizer, "use_keep_in_fp32_modules")
)
if is_sharded:
loaded_state_dict_keys = sharded_metadata["all_checkpoint_keys"]
else:
loaded_state_dict_keys = list(state_dict.keys())
if low_cpu_mem_usage or (use_keep_in_fp32_modules and is_accelerate_available()):
# In case some weights need to be kept in float32 and accelerate is not installed,
# we later on want to take the path where state_dict is not None, that is the one
# that do not require accelerate.
state_dict = None
config.name_or_path = pretrained_model_name_or_path
# Instantiate model.
init_contexts = [no_init_weights(_enable=_fast_init)]
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
logger.info("Detected DeepSpeed ZeRO-3: activating zero.init() for this model")
init_contexts = [deepspeed.zero.Init(config_dict_or_path=deepspeed_config())] + init_contexts
elif low_cpu_mem_usage:
init_contexts.append(init_empty_weights())
config = copy.deepcopy(config) # We do not want to modify the config inplace in from_pretrained.
config = cls._autoset_attn_implementation(
config, use_flash_attention_2=use_flash_attention_2, torch_dtype=torch_dtype, device_map=device_map
)
with ContextManagers(init_contexts):
# Let's make sure we don't run the init function of buffer modules
model = cls(config, *model_args, **model_kwargs)
# make sure we use the model's config since the __init__ call might have copied it
config = model.config
# Check first if we are `from_pt`
if use_keep_in_fp32_modules:
if is_accelerate_available() and not is_deepspeed_zero3_enabled():
low_cpu_mem_usage = True
keep_in_fp32_modules = model._keep_in_fp32_modules
else:
keep_in_fp32_modules = []
if hf_quantizer is not None:
hf_quantizer.preprocess_model(
model=model, device_map=device_map, keep_in_fp32_modules=keep_in_fp32_modules
)
# We store the original dtype for quantized models as we cannot easily retrieve it
# once the weights have been quantized
# Note that once you have loaded a quantized model, you can't change its dtype so this will
# remain a single source of truth
config._pre_quantization_dtype = torch_dtype
if isinstance(device_map, str):
special_dtypes = {}
if hf_quantizer is not None:
special_dtypes.update(hf_quantizer.get_special_dtypes_update(model, torch_dtype))
special_dtypes.update(
{
name: torch.float32
for name, _ in model.named_parameters()
if any(m in name for m in keep_in_fp32_modules)
}
)
target_dtype = torch_dtype
if hf_quantizer is not None:
target_dtype = hf_quantizer.adjust_target_dtype(target_dtype)
no_split_modules = model._get_no_split_modules(device_map)
if device_map not in ["auto", "balanced", "balanced_low_0", "sequential"]:
raise ValueError(
"If passing a string for `device_map`, please choose 'auto', 'balanced', 'balanced_low_0' or "
"'sequential'."
)
device_map_kwargs = {"no_split_module_classes": no_split_modules}
if "special_dtypes" in inspect.signature(infer_auto_device_map).parameters:
device_map_kwargs["special_dtypes"] = special_dtypes
elif len(special_dtypes) > 0:
logger.warning(
"This model has some weights that should be kept in higher precision, you need to upgrade "
"`accelerate` to properly deal with them (`pip install --upgrade accelerate`)."
)
if device_map != "sequential":
max_memory = get_balanced_memory(
model,
dtype=target_dtype,
low_zero=(device_map == "balanced_low_0"),
max_memory=max_memory,
**device_map_kwargs,
)
else:
max_memory = get_max_memory(max_memory)
if hf_quantizer is not None:
max_memory = hf_quantizer.adjust_max_memory(max_memory)
device_map_kwargs["max_memory"] = max_memory
# Make sure tied weights are tied before creating the device map.
model.tie_weights()
device_map = infer_auto_device_map(model, dtype=target_dtype, **device_map_kwargs)
if hf_quantizer is not None:
hf_quantizer.validate_environment(device_map=device_map)
elif device_map is not None:
model.tie_weights()
tied_params = find_tied_parameters(model)
# check if we don't have tied param in different devices
check_tied_parameters_on_same_device(tied_params, device_map)
if from_tf:
if resolved_archive_file.endswith(".index"):
# Load from a TensorFlow 1.X checkpoint - provided by original authors
model = cls.load_tf_weights(model, config, resolved_archive_file[:-6]) # Remove the '.index'
else:
# Load from our TensorFlow 2.0 checkpoints
try:
from .modeling_tf_pytorch_utils import load_tf2_checkpoint_in_pytorch_model
model, loading_info = load_tf2_checkpoint_in_pytorch_model(
model, resolved_archive_file, allow_missing_keys=True, output_loading_info=True
)
except ImportError:
logger.error(
"Loading a TensorFlow model in PyTorch, requires both PyTorch and TensorFlow to be installed."
" Please see https://pytorch.org/ and https://www.tensorflow.org/install/ for installation"
" instructions."
)
raise
elif from_flax:
try:
from .modeling_flax_pytorch_utils import load_flax_checkpoint_in_pytorch_model
model = load_flax_checkpoint_in_pytorch_model(model, resolved_archive_file)
except ImportError:
logger.error(
"Loading a Flax model in PyTorch, requires both PyTorch and Flax to be installed. Please see"
" https://pytorch.org/ and https://flax.readthedocs.io/en/latest/installation.html for"
" installation instructions."
)
raise
elif from_pt:
# restore default dtype
if dtype_orig is not None:
torch.set_default_dtype(dtype_orig)
(
model,
missing_keys,
unexpected_keys,
mismatched_keys,
offload_index,
error_msgs,
) = cls._load_pretrained_model(
model,
state_dict,
loaded_state_dict_keys, # XXX: rename?
resolved_archive_file,
pretrained_model_name_or_path,
ignore_mismatched_sizes=ignore_mismatched_sizes,
sharded_metadata=sharded_metadata,
_fast_init=_fast_init,
low_cpu_mem_usage=low_cpu_mem_usage,
device_map=device_map,
offload_folder=offload_folder,
offload_state_dict=offload_state_dict,
dtype=torch_dtype,
hf_quantizer=hf_quantizer,
keep_in_fp32_modules=keep_in_fp32_modules,
)
# make sure token embedding weights are still tied if needed
model.tie_weights()
# Set model in evaluation mode to deactivate DropOut modules by default
model.eval()
# If it is a model with generation capabilities, attempt to load the generation config
if model.can_generate() and pretrained_model_name_or_path is not None:
try:
model.generation_config = GenerationConfig.from_pretrained(
pretrained_model_name_or_path,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
**kwargs,
)
except OSError:
logger.info(
"Generation config file not found, using a generation config created from the model config."
)
pass
# Dispatch model with hooks on all devices if necessary
if device_map is not None:
device_map_kwargs = {
"device_map": device_map,
"offload_dir": offload_folder,
"offload_index": offload_index,
"offload_buffers": offload_buffers,
}
if "skip_keys" in inspect.signature(dispatch_model).parameters:
device_map_kwargs["skip_keys"] = model._skip_keys_device_placement
# For HQQ method we force-set the hooks for single GPU envs
if (
"force_hooks" in inspect.signature(dispatch_model).parameters
and hf_quantizer is not None
and hf_quantizer.quantization_config.quant_method == QuantizationMethod.HQQ
):
device_map_kwargs["force_hooks"] = True
if not is_fsdp_enabled() and not is_deepspeed_zero3_enabled():
dispatch_model(model, **device_map_kwargs)
if hf_quantizer is not None:
hf_quantizer.postprocess_model(model)
model.hf_quantizer = hf_quantizer
if _adapter_model_path is not None:
model.load_adapter(
_adapter_model_path,
adapter_name=adapter_name,
token=token,
adapter_kwargs=adapter_kwargs,
)
if output_loading_info:
if loading_info is None:
loading_info = {
"missing_keys": missing_keys,
"unexpected_keys": unexpected_keys,
"mismatched_keys": mismatched_keys,
"error_msgs": error_msgs,
}
return model, loading_info
return model
@classmethod
def _load_pretrained_model(
cls,
model,
state_dict,
loaded_keys,
resolved_archive_file,
pretrained_model_name_or_path,
ignore_mismatched_sizes=False,
sharded_metadata=None,
_fast_init=True,
low_cpu_mem_usage=False,
device_map=None,
offload_folder=None,
offload_state_dict=None,
dtype=None,
hf_quantizer=None,
keep_in_fp32_modules=None,
):
is_safetensors = False
is_quantized = hf_quantizer is not None
if device_map is not None and "disk" in device_map.values():
archive_file = (
resolved_archive_file[0] if isinstance(resolved_archive_file, (list, tuple)) else resolved_archive_file
)
is_safetensors = archive_file.endswith(".safetensors")
if offload_folder is None and not is_safetensors:
raise ValueError(
"The current `device_map` had weights offloaded to the disk. Please provide an `offload_folder`"
" for them. Alternatively, make sure you have `safetensors` installed if the model you are using"
" offers the weights in this format."
)
if offload_folder is not None:
os.makedirs(offload_folder, exist_ok=True)
if offload_state_dict is None:
offload_state_dict = True
is_sharded_safetensors = is_safetensors and sharded_metadata is not None
# tie the model weights before retrieving the state_dict
model.tie_weights()
# Retrieve missing & unexpected_keys
model_state_dict = model.state_dict()
expected_keys = list(model_state_dict.keys())
prefix = model.base_model_prefix
def _fix_key(key):
if "beta" in key:
return key.replace("beta", "bias")
if "gamma" in key:
return key.replace("gamma", "weight")
return key
original_loaded_keys = loaded_keys
loaded_keys = [_fix_key(key) for key in loaded_keys]
if len(prefix) > 0:
has_prefix_module = any(s.startswith(prefix) for s in loaded_keys)
expects_prefix_module = any(s.startswith(prefix) for s in expected_keys)
else:
has_prefix_module = False
expects_prefix_module = False
# key re-naming operations are never done on the keys
# that are loaded, but always on the keys of the newly initialized model
remove_prefix_from_model = not has_prefix_module and expects_prefix_module
add_prefix_to_model = has_prefix_module and not expects_prefix_module
if remove_prefix_from_model:
_prefix = f"{prefix}."
expected_keys_not_prefixed = [s for s in expected_keys if not s.startswith(_prefix)]
expected_keys = [s[len(_prefix) :] if s.startswith(_prefix) else s for s in expected_keys]
elif add_prefix_to_model:
expected_keys = [".".join([prefix, s]) for s in expected_keys]
missing_keys = sorted(set(expected_keys) - set(loaded_keys))
unexpected_keys = set(loaded_keys) - set(expected_keys)
# Remove nonpersistent buffers from unexpected keys: they are not in the state dict but will be in the model
# buffers
model_buffers = {n for n, _ in model.named_buffers()}
if remove_prefix_from_model:
model_buffers = {key[len(_prefix) :] if key.startswith(_prefix) else key for key in model_buffers}
elif add_prefix_to_model:
model_buffers = {".".join([prefix, key]) for key in model_buffers}
unexpected_keys = sorted(unexpected_keys - model_buffers)
model.tie_weights()
if device_map is None and not is_fsdp_enabled() and not is_deepspeed_zero3_enabled():
ptrs = collections.defaultdict(list)
for name, tensor in model.state_dict().items():
id_tensor = id_tensor_storage(tensor)
ptrs[id_tensor].append(name)
# These are all the pointers of shared tensors.
tied_params = [names for _, names in ptrs.items() if len(names) > 1]
else:
# id function doesn't work for meta tensor so we need this function
tied_params = find_tied_parameters(model)
for group in tied_params:
if remove_prefix_from_model:
group = [key[len(_prefix) :] if key.startswith(_prefix) else key for key in group]
elif add_prefix_to_model:
group = [".".join([prefix, key]) for key in group]
missing_in_group = [k for k in missing_keys if k in group]
if len(missing_in_group) > 0 and len(missing_in_group) < len(group):
missing_keys = [k for k in missing_keys if k not in missing_in_group]
# Some models may have keys that are not in the state by design, removing them before needlessly warning
# the user.
if cls._keys_to_ignore_on_load_missing is not None:
for pat in cls._keys_to_ignore_on_load_missing:
missing_keys = [k for k in missing_keys if re.search(pat, k) is None]
if cls._keys_to_ignore_on_load_unexpected is not None:
for pat in cls._keys_to_ignore_on_load_unexpected:
unexpected_keys = [k for k in unexpected_keys if re.search(pat, k) is None]
if hf_quantizer is not None:
missing_keys = hf_quantizer.update_missing_keys(model, missing_keys, prefix)
# retrieve weights on meta device and put them back on CPU.
# This is not ideal in terms of memory, but if we don't do that not, we can't initialize them in the next step
if low_cpu_mem_usage:
for key in missing_keys:
if key in list(model_state_dict.keys()):
key = key
elif f"{prefix}.{key}" in list(model_state_dict.keys()):
key = f"{prefix}.{key}"
elif key.startswith(prefix) and ".".join(key.split(".")[1:]) in list(model_state_dict.keys()):
key = ".".join(key.split(".")[1:])
param = model_state_dict[key]
# upcast in fp32 if any
target_dtype = dtype
if (
keep_in_fp32_modules is not None
and dtype == torch.float16
and any(
module_to_keep_in_fp32 in key.split(".") for module_to_keep_in_fp32 in keep_in_fp32_modules
)
):
target_dtype = torch.float32
if param.device == torch.device("meta"):
value = torch.empty(*param.size(), dtype=target_dtype)
if (
not is_quantized
or getattr(hf_quantizer, "requires_parameters_quantization", False)
or not hf_quantizer.check_quantized_param(
model, param_value=value, param_name=key, state_dict={}
)
):
set_module_tensor_to_device(model, key, "cpu", value)
else:
hf_quantizer.create_quantized_param(model, value, key, "cpu", state_dict, unexpected_keys)
# retrieve uninitialized modules and initialize before maybe overriding that with the pretrained weights.
if _fast_init:
if not ignore_mismatched_sizes:
if remove_prefix_from_model:
_loaded_keys = [f"{prefix}.{k}" for k in loaded_keys]
elif add_prefix_to_model:
_loaded_keys = [k[len(prefix) + 1 :] for k in loaded_keys]
else:
_loaded_keys = loaded_keys
not_initialized_submodules = set_initialized_submodules(model, _loaded_keys)
# If we're about to tie the output embeds to the input embeds we don't need to init them
if hasattr(model.config, "tie_word_embeddings") and model.config.tie_word_embeddings:
output_embeddings = model.get_output_embeddings()
if output_embeddings is not None:
# Still need to initialize if there is a bias term since biases are not tied.
if not hasattr(output_embeddings, "bias") or output_embeddings.bias is None:
output_embeddings._is_hf_initialized = True
else:
not_initialized_submodules = dict(model.named_modules())
# This will only initialize submodules that are not marked as initialized by the line above.
if is_deepspeed_zero3_enabled() and not is_quantized:
import deepspeed
not_initialized_parameters = list(
set(
itertools.chain.from_iterable(
submodule.parameters(recurse=False) for submodule in not_initialized_submodules.values()
)
)
)
with deepspeed.zero.GatheredParameters(not_initialized_parameters, modifier_rank=0):
model.apply(model._initialize_weights)
else:
model.apply(model._initialize_weights)
# Set some modules to fp32 if any
if keep_in_fp32_modules is not None:
for name, param in model.named_parameters():
if any(module_to_keep_in_fp32 in name.split(".") for module_to_keep_in_fp32 in keep_in_fp32_modules):
# param = param.to(torch.float32) does not work here as only in the local scope.
param.data = param.data.to(torch.float32)
# Make sure we are able to load base models as well as derived models (with heads)
start_prefix = ""
model_to_load = model
if len(cls.base_model_prefix) > 0 and not hasattr(model, cls.base_model_prefix) and has_prefix_module:
start_prefix = cls.base_model_prefix + "."
if len(cls.base_model_prefix) > 0 and hasattr(model, cls.base_model_prefix) and not has_prefix_module:
model_to_load = getattr(model, cls.base_model_prefix)
base_model_expected_keys = list(model_to_load.state_dict().keys())
if any(key in expected_keys_not_prefixed and key not in base_model_expected_keys for key in loaded_keys):
raise ValueError(
"The state dictionary of the model you are trying to load is corrupted. Are you sure it was "
"properly saved?"
)
if device_map is not None:
device_map = {k.replace(f"{cls.base_model_prefix}.", ""): v for k, v in device_map.items()}
def _find_mismatched_keys(
state_dict,
model_state_dict,
loaded_keys,
add_prefix_to_model,
remove_prefix_from_model,
ignore_mismatched_sizes,
):
mismatched_keys = []
if ignore_mismatched_sizes:
for checkpoint_key in loaded_keys:
# If the checkpoint is sharded, we may not have the key here.
if checkpoint_key not in state_dict:
continue
model_key = checkpoint_key
if remove_prefix_from_model:
# The model key starts with `prefix` but `checkpoint_key` doesn't so we add it.
model_key = f"{prefix}.{checkpoint_key}"
elif add_prefix_to_model:
# The model key doesn't start with `prefix` but `checkpoint_key` does so we remove it.
model_key = ".".join(checkpoint_key.split(".")[1:])
if (
model_key in model_state_dict
and state_dict[checkpoint_key].shape != model_state_dict[model_key].shape
):
if (
state_dict[checkpoint_key].shape[-1] == 1
and state_dict[checkpoint_key].numel() * 2 == model_state_dict[model_key].numel()
):
# This skips size mismatches for 4-bit weights. Two 4-bit values share an 8-bit container, causing size differences.
# Without matching with module type or paramter type it seems like a practical way to detect valid 4bit weights.
pass
else:
mismatched_keys.append(
(checkpoint_key, state_dict[checkpoint_key].shape, model_state_dict[model_key].shape)
)
del state_dict[checkpoint_key]
return mismatched_keys
if resolved_archive_file is not None:
folder = os.path.sep.join(resolved_archive_file[0].split(os.path.sep)[:-1])
else:
folder = None
if device_map is not None and is_safetensors:
param_device_map = expand_device_map(device_map, original_loaded_keys, start_prefix)
str_dtype = str(dtype).replace("torch.", "") if dtype is not None else "float32"
if sharded_metadata is None:
archive_file = (
resolved_archive_file[0]
if isinstance(resolved_archive_file, (list, tuple))
else resolved_archive_file
)
weight_map = {p: archive_file for p in original_loaded_keys}
else:
weight_map = {p: os.path.join(folder, f) for p, f in sharded_metadata["weight_map"].items()}
offload_index = {
p[len(start_prefix) :]: {"safetensors_file": f, "weight_name": p, "dtype": str_dtype}
for p, f in weight_map.items()
if p.startswith(start_prefix) and param_device_map[p[len(start_prefix) :]] == "disk"
}
if state_dict is not None:
# Whole checkpoint
mismatched_keys = _find_mismatched_keys(
state_dict,
model_state_dict,
original_loaded_keys,
add_prefix_to_model,
remove_prefix_from_model,
ignore_mismatched_sizes,
)
error_msgs = _load_state_dict_into_model(model_to_load, state_dict, start_prefix)
offload_index = None
else:
# Sharded checkpoint or whole but low_cpu_mem_usage==True
# This should always be a list but, just to be sure.
if not isinstance(resolved_archive_file, list):
resolved_archive_file = [resolved_archive_file]
error_msgs = []
mismatched_keys = []
if not is_safetensors:
offload_index = {} if device_map is not None and "disk" in device_map.values() else None
if offload_state_dict:
state_dict_folder = tempfile.mkdtemp()
state_dict_index = {}
else:
state_dict_folder = None
state_dict_index = None
if is_sharded_safetensors:
disk_only_shard_files = get_disk_only_shard_files(
device_map, sharded_metadata=sharded_metadata, start_prefix=start_prefix
)
disk_only_shard_files = [os.path.join(folder, f) for f in disk_only_shard_files]
else:
disk_only_shard_files = []
if len(resolved_archive_file) > 1:
resolved_archive_file = logging.tqdm(resolved_archive_file, desc="Loading checkpoint shards")
for shard_file in resolved_archive_file:
# Skip the load for shards that only contain disk-offloaded weights when using safetensors for the offload.
if shard_file in disk_only_shard_files:
continue
state_dict = load_state_dict(shard_file, is_quantized=is_quantized)
# Mistmatched keys contains tuples key/shape1/shape2 of weights in the checkpoint that have a shape not
# matching the weights in the model.
mismatched_keys += _find_mismatched_keys(
state_dict,
model_state_dict,
original_loaded_keys,
add_prefix_to_model,
remove_prefix_from_model,
ignore_mismatched_sizes,
)
if low_cpu_mem_usage:
if is_fsdp_enabled() and not is_local_dist_rank_0() and not is_quantized:
for key, param in model_to_load.state_dict().items():
if param.device == torch.device("meta"):
set_module_tensor_to_device(
model_to_load, key, "cpu", torch.empty(*param.size(), dtype=dtype)
)
else:
new_error_msgs, offload_index, state_dict_index = _load_state_dict_into_meta_model(
model_to_load,
state_dict,
loaded_keys,
start_prefix,
expected_keys,
device_map=device_map,
offload_folder=offload_folder,
offload_index=offload_index,
state_dict_folder=state_dict_folder,
state_dict_index=state_dict_index,
dtype=dtype,
hf_quantizer=hf_quantizer,
is_safetensors=is_safetensors,
keep_in_fp32_modules=keep_in_fp32_modules,
unexpected_keys=unexpected_keys,
)
error_msgs += new_error_msgs
else:
error_msgs += _load_state_dict_into_model(model_to_load, state_dict, start_prefix)
# force memory release
del state_dict
gc.collect()
if offload_index is not None and len(offload_index) > 0:
if model != model_to_load:
# We need to add the prefix of the base model
prefix = cls.base_model_prefix
if not is_safetensors:
for weight_name in offload_index:
shutil.move(
os.path.join(offload_folder, f"{weight_name}.dat"),
os.path.join(offload_folder, f"{prefix}.{weight_name}.dat"),
)
offload_index = {f"{prefix}.{key}": value for key, value in offload_index.items()}
if not is_safetensors:
save_offload_index(offload_index, offload_folder)
offload_index = None
if offload_state_dict:
# Load back temporarily offloaded state dict
load_offloaded_weights(model_to_load, state_dict_index, state_dict_folder)
shutil.rmtree(state_dict_folder)
if len(error_msgs) > 0:
error_msg = "\n\t".join(error_msgs)
if "size mismatch" in error_msg:
error_msg += (
"\n\tYou may consider adding `ignore_mismatched_sizes=True` in the model `from_pretrained` method."
)
raise RuntimeError(f"Error(s) in loading state_dict for {model.__class__.__name__}:\n\t{error_msg}")
if len(unexpected_keys) > 0:
archs = [] if model.config.architectures is None else model.config.architectures
warner = logger.warning if model.__class__.__name__ in archs else logger.info
warner(
f"Some weights of the model checkpoint at {pretrained_model_name_or_path} were not used when"
f" initializing {model.__class__.__name__}: {unexpected_keys}\n- This IS expected if you are"
f" initializing {model.__class__.__name__} from the checkpoint of a model trained on another task or"
" with another architecture (e.g. initializing a BertForSequenceClassification model from a"
" BertForPreTraining model).\n- This IS NOT expected if you are initializing"
f" {model.__class__.__name__} from the checkpoint of a model that you expect to be exactly identical"
" (initializing a BertForSequenceClassification model from a BertForSequenceClassification model)."
)
else:
logger.info(f"All model checkpoint weights were used when initializing {model.__class__.__name__}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some weights of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized: {missing_keys}\nYou should probably"
" TRAIN this model on a down-stream task to be able to use it for predictions and inference."
)
elif len(mismatched_keys) == 0:
logger.info(
f"All the weights of {model.__class__.__name__} were initialized from the model checkpoint at"
f" {pretrained_model_name_or_path}.\nIf your task is similar to the task the model of the checkpoint"
f" was trained on, you can already use {model.__class__.__name__} for predictions without further"
" training."
)
if len(mismatched_keys) > 0:
mismatched_warning = "\n".join(
[
f"- {key}: found shape {shape1} in the checkpoint and {shape2} in the model instantiated"
for key, shape1, shape2 in mismatched_keys
]
)
logger.warning(
f"Some weights of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized because the shapes did not"
f" match:\n{mismatched_warning}\nYou should probably TRAIN this model on a down-stream task to be able"
" to use it for predictions and inference."
)
return model, missing_keys, unexpected_keys, mismatched_keys, offload_index, error_msgs
def retrieve_modules_from_names(self, names, add_prefix=False, remove_prefix=False):
module_keys = {".".join(key.split(".")[:-1]) for key in names}
# torch.nn.ParameterList is a special case where two parameter keywords
# are appended to the module name, *e.g.* bert.special_embeddings.0
module_keys = module_keys.union(
{".".join(key.split(".")[:-2]) for key in names if len(key) > 0 and key[-1].isdigit()}
)
retrieved_modules = []
# retrieve all modules that has at least one missing weight name
for name, module in self.named_modules():
if remove_prefix:
_prefix = f"{self.base_model_prefix}."
name = name[len(_prefix) :] if name.startswith(_prefix) else name
elif add_prefix:
name = ".".join([self.base_model_prefix, name]) if len(name) > 0 else self.base_model_prefix
if name in module_keys:
retrieved_modules.append(module)
return retrieved_modules
@staticmethod
def _load_pretrained_model_low_mem(
model, loaded_state_dict_keys, resolved_archive_file, start_prefix="", hf_quantizer=None
):
"""
This is an experimental function that loads the model using ~1.x model size CPU memory
Before you call it do:
1. save which state_dict keys are available
2. drop state_dict before model is created, since the latter takes 1x model size memory
Here then we continue:
3. switch to the meta device all params/buffers that are going to be replaced from the loaded state_dict
4. load state_dict 2nd time
5. replace the params/buffers from the state_dict
Currently, it doesn't handle missing_keys, unexpected_keys, mismatched_keys. It can't handle deepspeed. To
handle bitsandbytes, needs non-empty hf_quantizer argument.
"""
_move_model_to_meta(model, loaded_state_dict_keys, start_prefix)
state_dict = load_state_dict(resolved_archive_file)
expected_keys = loaded_state_dict_keys # plug for missing expected_keys. TODO: replace with proper keys
error_msgs = _load_state_dict_into_meta_model(
model,
state_dict,
loaded_state_dict_keys,
start_prefix,
expected_keys=expected_keys,
hf_quantizer=hf_quantizer,
)
return error_msgs
@classmethod
def register_for_auto_class(cls, auto_class="AutoModel"):
"""
Register this class with a given auto class. This should only be used for custom models as the ones in the
library are already mapped with an auto class.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"AutoModel"`):
The auto class to register this new model with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
def to_bettertransformer(self) -> "PreTrainedModel":
"""
Converts the model to use [PyTorch's native attention
implementation](https://pytorch.org/docs/stable/generated/torch.nn.MultiheadAttention.html), integrated to
Transformers through [Optimum library](https://huggingface.co/docs/optimum/bettertransformer/overview). Only a
subset of all Transformers models are supported.
PyTorch's attention fastpath allows to speed up inference through kernel fusions and the use of [nested
tensors](https://pytorch.org/docs/stable/nested.html). Detailed benchmarks can be found in [this blog
post](https://medium.com/pytorch/bettertransformer-out-of-the-box-performance-for-huggingface-transformers-3fbe27d50ab2).
Returns:
[`PreTrainedModel`]: The model converted to BetterTransformer.
"""
if not is_optimum_available():
raise ImportError("The package `optimum` is required to use Better Transformer.")
from optimum.version import __version__ as optimum_version
if version.parse(optimum_version) < version.parse("1.7.0"):
raise ImportError(
f"Please install optimum>=1.7.0 to use Better Transformer. The version {optimum_version} was found."
)
from optimum.bettertransformer import BetterTransformer
return BetterTransformer.transform(self)
def reverse_bettertransformer(self):
"""
Reverts the transformation from [`~PreTrainedModel.to_bettertransformer`] so that the original modeling is
used, for example in order to save the model.
Returns:
[`PreTrainedModel`]: The model converted back to the original modeling.
"""
if not is_optimum_available():
raise ImportError("The package `optimum` is required to use Better Transformer.")
from optimum.version import __version__ as optimum_version
if version.parse(optimum_version) < version.parse("1.7.0"):
raise ImportError(
f"Please install optimum>=1.7.0 to use Better Transformer. The version {optimum_version} was found."
)
from optimum.bettertransformer import BetterTransformer
return BetterTransformer.reverse(self)
def warn_if_padding_and_no_attention_mask(self, input_ids, attention_mask):
"""
Shows a one-time warning if the input_ids appear to contain padding and no attention mask was given.
"""
# Skip the check during tracing.
if is_torch_fx_proxy(input_ids) or torch.jit.is_tracing() or is_torchdynamo_compiling():
return
if (attention_mask is not None) or (self.config.pad_token_id is None):
return
# Check only the first and last input IDs to reduce overhead.
if self.config.pad_token_id in input_ids[:, [-1, 0]]:
warn_string = (
"We strongly recommend passing in an `attention_mask` since your input_ids may be padded. See "
"https://huggingface.co/docs/transformers/troubleshooting"
"#incorrect-output-when-padding-tokens-arent-masked."
)
# If the pad token is equal to either BOS, EOS, or SEP, we do not know whether the user should use an
# attention_mask or not. In this case, we should still show a warning because this is a rare case.
if (
(self.config.bos_token_id is not None and self.config.bos_token_id == self.config.pad_token_id)
or (self.config.eos_token_id is not None and self.config.eos_token_id == self.config.pad_token_id)
or (self.config.sep_token_id is not None and self.config.sep_token_id == self.config.pad_token_id)
):
warn_string += (
f"\nYou may ignore this warning if your `pad_token_id` ({self.config.pad_token_id}) is identical "
f"to the `bos_token_id` ({self.config.bos_token_id}), `eos_token_id` ({self.config.eos_token_id}), "
f"or the `sep_token_id` ({self.config.sep_token_id}), and your input is not padded."
)
logger.warning_once(warn_string)
@property
def _is_quantized_training_enabled(self):
warnings.warn(
"`_is_quantized_training_enabled` is going to be deprecated in transformers 4.39.0. Please use `model.hf_quantizer.is_trainable` instead",
FutureWarning,
)
if not hasattr(self, "hf_quantizer"):
return False
return self.hf_quantizer.is_trainable
PreTrainedModel.push_to_hub = copy_func(PreTrainedModel.push_to_hub)
if PreTrainedModel.push_to_hub.__doc__ is not None:
PreTrainedModel.push_to_hub.__doc__ = PreTrainedModel.push_to_hub.__doc__.format(
object="model", object_class="AutoModel", object_files="model file"
)
class PoolerStartLogits(nn.Module):
"""
Compute SQuAD start logits from sequence hidden states.
Args:
config ([`PretrainedConfig`]):
The config used by the model, will be used to grab the `hidden_size` of the model.
"""
def __init__(self, config: PretrainedConfig):
super().__init__()
self.dense = nn.Linear(config.hidden_size, 1)
def forward(
self, hidden_states: torch.FloatTensor, p_mask: Optional[torch.FloatTensor] = None
) -> torch.FloatTensor:
"""
Args:
hidden_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`):
The final hidden states of the model.
p_mask (`torch.FloatTensor` of shape `(batch_size, seq_len)`, *optional*):
Mask for tokens at invalid position, such as query and special symbols (PAD, SEP, CLS). 1.0 means token
should be masked.
Returns:
`torch.FloatTensor`: The start logits for SQuAD.
"""
x = self.dense(hidden_states).squeeze(-1)
if p_mask is not None:
if get_parameter_dtype(self) == torch.float16:
x = x * (1 - p_mask) - 65500 * p_mask
else:
x = x * (1 - p_mask) - 1e30 * p_mask
return x
class PoolerEndLogits(nn.Module):
"""
Compute SQuAD end logits from sequence hidden states.
Args:
config ([`PretrainedConfig`]):
The config used by the model, will be used to grab the `hidden_size` of the model and the `layer_norm_eps`
to use.
"""
def __init__(self, config: PretrainedConfig):
super().__init__()
self.dense_0 = nn.Linear(config.hidden_size * 2, config.hidden_size)
self.activation = nn.Tanh()
self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
self.dense_1 = nn.Linear(config.hidden_size, 1)
def forward(
self,
hidden_states: torch.FloatTensor,
start_states: Optional[torch.FloatTensor] = None,
start_positions: Optional[torch.LongTensor] = None,
p_mask: Optional[torch.FloatTensor] = None,
) -> torch.FloatTensor:
"""
Args:
hidden_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`):
The final hidden states of the model.
start_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`, *optional*):
The hidden states of the first tokens for the labeled span.
start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
The position of the first token for the labeled span.
p_mask (`torch.FloatTensor` of shape `(batch_size, seq_len)`, *optional*):
Mask for tokens at invalid position, such as query and special symbols (PAD, SEP, CLS). 1.0 means token
should be masked.
<Tip>
One of `start_states` or `start_positions` should be not `None`. If both are set, `start_positions` overrides
`start_states`.
</Tip>
Returns:
`torch.FloatTensor`: The end logits for SQuAD.
"""
assert (
start_states is not None or start_positions is not None
), "One of start_states, start_positions should be not None"
if start_positions is not None:
slen, hsz = hidden_states.shape[-2:]
start_positions = start_positions[:, None, None].expand(-1, -1, hsz) # shape (bsz, 1, hsz)
start_states = hidden_states.gather(-2, start_positions) # shape (bsz, 1, hsz)
start_states = start_states.expand(-1, slen, -1) # shape (bsz, slen, hsz)
x = self.dense_0(torch.cat([hidden_states, start_states], dim=-1))
x = self.activation(x)
x = self.LayerNorm(x)
x = self.dense_1(x).squeeze(-1)
if p_mask is not None:
if get_parameter_dtype(self) == torch.float16:
x = x * (1 - p_mask) - 65500 * p_mask
else:
x = x * (1 - p_mask) - 1e30 * p_mask
return x
class PoolerAnswerClass(nn.Module):
"""
Compute SQuAD 2.0 answer class from classification and start tokens hidden states.
Args:
config ([`PretrainedConfig`]):
The config used by the model, will be used to grab the `hidden_size` of the model.
"""
def __init__(self, config):
super().__init__()
self.dense_0 = nn.Linear(config.hidden_size * 2, config.hidden_size)
self.activation = nn.Tanh()
self.dense_1 = nn.Linear(config.hidden_size, 1, bias=False)
def forward(
self,
hidden_states: torch.FloatTensor,
start_states: Optional[torch.FloatTensor] = None,
start_positions: Optional[torch.LongTensor] = None,
cls_index: Optional[torch.LongTensor] = None,
) -> torch.FloatTensor:
"""
Args:
hidden_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`):
The final hidden states of the model.
start_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`, *optional*):
The hidden states of the first tokens for the labeled span.
start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
The position of the first token for the labeled span.
cls_index (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
Position of the CLS token for each sentence in the batch. If `None`, takes the last token.
<Tip>
One of `start_states` or `start_positions` should be not `None`. If both are set, `start_positions` overrides
`start_states`.
</Tip>
Returns:
`torch.FloatTensor`: The SQuAD 2.0 answer class.
"""
# No dependency on end_feature so that we can obtain one single `cls_logits` for each sample.
hsz = hidden_states.shape[-1]
assert (
start_states is not None or start_positions is not None
), "One of start_states, start_positions should be not None"
if start_positions is not None:
start_positions = start_positions[:, None, None].expand(-1, -1, hsz) # shape (bsz, 1, hsz)
start_states = hidden_states.gather(-2, start_positions).squeeze(-2) # shape (bsz, hsz)
if cls_index is not None:
cls_index = cls_index[:, None, None].expand(-1, -1, hsz) # shape (bsz, 1, hsz)
cls_token_state = hidden_states.gather(-2, cls_index).squeeze(-2) # shape (bsz, hsz)
else:
cls_token_state = hidden_states[:, -1, :] # shape (bsz, hsz)
x = self.dense_0(torch.cat([start_states, cls_token_state], dim=-1))
x = self.activation(x)
x = self.dense_1(x).squeeze(-1)
return x
@dataclass
class SquadHeadOutput(ModelOutput):
"""
Base class for outputs of question answering models using a [`~modeling_utils.SQuADHead`].
Args:
loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned if both `start_positions` and `end_positions` are provided):
Classification loss as the sum of start token, end token (and is_impossible if provided) classification
losses.
start_top_log_probs (`torch.FloatTensor` of shape `(batch_size, config.start_n_top)`, *optional*, returned if `start_positions` or `end_positions` is not provided):
Log probabilities for the top config.start_n_top start token possibilities (beam-search).
start_top_index (`torch.LongTensor` of shape `(batch_size, config.start_n_top)`, *optional*, returned if `start_positions` or `end_positions` is not provided):
Indices for the top config.start_n_top start token possibilities (beam-search).
end_top_log_probs (`torch.FloatTensor` of shape `(batch_size, config.start_n_top * config.end_n_top)`, *optional*, returned if `start_positions` or `end_positions` is not provided):
Log probabilities for the top `config.start_n_top * config.end_n_top` end token possibilities
(beam-search).
end_top_index (`torch.LongTensor` of shape `(batch_size, config.start_n_top * config.end_n_top)`, *optional*, returned if `start_positions` or `end_positions` is not provided):
Indices for the top `config.start_n_top * config.end_n_top` end token possibilities (beam-search).
cls_logits (`torch.FloatTensor` of shape `(batch_size,)`, *optional*, returned if `start_positions` or `end_positions` is not provided):
Log probabilities for the `is_impossible` label of the answers.
"""
loss: Optional[torch.FloatTensor] = None
start_top_log_probs: Optional[torch.FloatTensor] = None
start_top_index: Optional[torch.LongTensor] = None
end_top_log_probs: Optional[torch.FloatTensor] = None
end_top_index: Optional[torch.LongTensor] = None
cls_logits: Optional[torch.FloatTensor] = None
class SQuADHead(nn.Module):
r"""
A SQuAD head inspired by XLNet.
Args:
config ([`PretrainedConfig`]):
The config used by the model, will be used to grab the `hidden_size` of the model and the `layer_norm_eps`
to use.
"""
def __init__(self, config):
super().__init__()
self.start_n_top = config.start_n_top
self.end_n_top = config.end_n_top
self.start_logits = PoolerStartLogits(config)
self.end_logits = PoolerEndLogits(config)
self.answer_class = PoolerAnswerClass(config)
@replace_return_docstrings(output_type=SquadHeadOutput, config_class=PretrainedConfig)
def forward(
self,
hidden_states: torch.FloatTensor,
start_positions: Optional[torch.LongTensor] = None,
end_positions: Optional[torch.LongTensor] = None,
cls_index: Optional[torch.LongTensor] = None,
is_impossible: Optional[torch.LongTensor] = None,
p_mask: Optional[torch.FloatTensor] = None,
return_dict: bool = False,
) -> Union[SquadHeadOutput, Tuple[torch.FloatTensor]]:
"""
Args:
hidden_states (`torch.FloatTensor` of shape `(batch_size, seq_len, hidden_size)`):
Final hidden states of the model on the sequence tokens.
start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
Positions of the first token for the labeled span.
end_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
Positions of the last token for the labeled span.
cls_index (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
Position of the CLS token for each sentence in the batch. If `None`, takes the last token.
is_impossible (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
Whether the question has a possible answer in the paragraph or not.
p_mask (`torch.FloatTensor` of shape `(batch_size, seq_len)`, *optional*):
Mask for tokens at invalid position, such as query and special symbols (PAD, SEP, CLS). 1.0 means token
should be masked.
return_dict (`bool`, *optional*, defaults to `False`):
Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
Returns:
"""
start_logits = self.start_logits(hidden_states, p_mask=p_mask)
if start_positions is not None and end_positions is not None:
# If we are on multi-GPU, let's remove the dimension added by batch splitting
for x in (start_positions, end_positions, cls_index, is_impossible):
if x is not None and x.dim() > 1:
x.squeeze_(-1)
# during training, compute the end logits based on the ground truth of the start position
end_logits = self.end_logits(hidden_states, start_positions=start_positions, p_mask=p_mask)
loss_fct = CrossEntropyLoss()
start_loss = loss_fct(start_logits, start_positions)
end_loss = loss_fct(end_logits, end_positions)
total_loss = (start_loss + end_loss) / 2
if cls_index is not None and is_impossible is not None:
# Predict answerability from the representation of CLS and START
cls_logits = self.answer_class(hidden_states, start_positions=start_positions, cls_index=cls_index)
loss_fct_cls = nn.BCEWithLogitsLoss()
cls_loss = loss_fct_cls(cls_logits, is_impossible)
# note(zhiliny): by default multiply the loss by 0.5 so that the scale is comparable to start_loss and end_loss
total_loss += cls_loss * 0.5
return SquadHeadOutput(loss=total_loss) if return_dict else (total_loss,)
else:
# during inference, compute the end logits based on beam search
bsz, slen, hsz = hidden_states.size()
start_log_probs = nn.functional.softmax(start_logits, dim=-1) # shape (bsz, slen)
start_top_log_probs, start_top_index = torch.topk(
start_log_probs, self.start_n_top, dim=-1
) # shape (bsz, start_n_top)
start_top_index_exp = start_top_index.unsqueeze(-1).expand(-1, -1, hsz) # shape (bsz, start_n_top, hsz)
start_states = torch.gather(hidden_states, -2, start_top_index_exp) # shape (bsz, start_n_top, hsz)
start_states = start_states.unsqueeze(1).expand(-1, slen, -1, -1) # shape (bsz, slen, start_n_top, hsz)
hidden_states_expanded = hidden_states.unsqueeze(2).expand_as(
start_states
) # shape (bsz, slen, start_n_top, hsz)
p_mask = p_mask.unsqueeze(-1) if p_mask is not None else None
end_logits = self.end_logits(hidden_states_expanded, start_states=start_states, p_mask=p_mask)
end_log_probs = nn.functional.softmax(end_logits, dim=1) # shape (bsz, slen, start_n_top)
end_top_log_probs, end_top_index = torch.topk(
end_log_probs, self.end_n_top, dim=1
) # shape (bsz, end_n_top, start_n_top)
end_top_log_probs = end_top_log_probs.view(-1, self.start_n_top * self.end_n_top)
end_top_index = end_top_index.view(-1, self.start_n_top * self.end_n_top)
start_states = torch.einsum("blh,bl->bh", hidden_states, start_log_probs)
cls_logits = self.answer_class(hidden_states, start_states=start_states, cls_index=cls_index)
if not return_dict:
return (start_top_log_probs, start_top_index, end_top_log_probs, end_top_index, cls_logits)
else:
return SquadHeadOutput(
start_top_log_probs=start_top_log_probs,
start_top_index=start_top_index,
end_top_log_probs=end_top_log_probs,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
class SequenceSummary(nn.Module):
r"""
Compute a single vector summary of a sequence hidden states.
Args:
config ([`PretrainedConfig`]):
The config used by the model. Relevant arguments in the config class of the model are (refer to the actual
config class of your model for the default values it uses):
- **summary_type** (`str`) -- The method to use to make this summary. Accepted values are:
- `"last"` -- Take the last token hidden state (like XLNet)
- `"first"` -- Take the first token hidden state (like Bert)
- `"mean"` -- Take the mean of all tokens hidden states
- `"cls_index"` -- Supply a Tensor of classification token position (GPT/GPT-2)
- `"attn"` -- Not implemented now, use multi-head attention
- **summary_use_proj** (`bool`) -- Add a projection after the vector extraction.
- **summary_proj_to_labels** (`bool`) -- If `True`, the projection outputs to `config.num_labels` classes
(otherwise to `config.hidden_size`).
- **summary_activation** (`Optional[str]`) -- Set to `"tanh"` to add a tanh activation to the output,
another string or `None` will add no activation.
- **summary_first_dropout** (`float`) -- Optional dropout probability before the projection and activation.
- **summary_last_dropout** (`float`)-- Optional dropout probability after the projection and activation.
"""
def __init__(self, config: PretrainedConfig):
super().__init__()
self.summary_type = getattr(config, "summary_type", "last")
if self.summary_type == "attn":
# We should use a standard multi-head attention module with absolute positional embedding for that.
# Cf. https://github.com/zihangdai/xlnet/blob/master/modeling.py#L253-L276
# We can probably just use the multi-head attention module of PyTorch >=1.1.0
raise NotImplementedError
self.summary = Identity()
if hasattr(config, "summary_use_proj") and config.summary_use_proj:
if hasattr(config, "summary_proj_to_labels") and config.summary_proj_to_labels and config.num_labels > 0:
num_classes = config.num_labels
else:
num_classes = config.hidden_size
self.summary = nn.Linear(config.hidden_size, num_classes)
activation_string = getattr(config, "summary_activation", None)
self.activation: Callable = get_activation(activation_string) if activation_string else Identity()
self.first_dropout = Identity()
if hasattr(config, "summary_first_dropout") and config.summary_first_dropout > 0:
self.first_dropout = nn.Dropout(config.summary_first_dropout)
self.last_dropout = Identity()
if hasattr(config, "summary_last_dropout") and config.summary_last_dropout > 0:
self.last_dropout = nn.Dropout(config.summary_last_dropout)
def forward(
self, hidden_states: torch.FloatTensor, cls_index: Optional[torch.LongTensor] = None
) -> torch.FloatTensor:
"""
Compute a single vector summary of a sequence hidden states.
Args:
hidden_states (`torch.FloatTensor` of shape `[batch_size, seq_len, hidden_size]`):
The hidden states of the last layer.
cls_index (`torch.LongTensor` of shape `[batch_size]` or `[batch_size, ...]` where ... are optional leading dimensions of `hidden_states`, *optional*):
Used if `summary_type == "cls_index"` and takes the last token of the sequence as classification token.
Returns:
`torch.FloatTensor`: The summary of the sequence hidden states.
"""
if self.summary_type == "last":
output = hidden_states[:, -1]
elif self.summary_type == "first":
output = hidden_states[:, 0]
elif self.summary_type == "mean":
output = hidden_states.mean(dim=1)
elif self.summary_type == "cls_index":
if cls_index is None:
cls_index = torch.full_like(
hidden_states[..., :1, :],
hidden_states.shape[-2] - 1,
dtype=torch.long,
)
else:
cls_index = cls_index.unsqueeze(-1).unsqueeze(-1)
cls_index = cls_index.expand((-1,) * (cls_index.dim() - 1) + (hidden_states.size(-1),))
# shape of cls_index: (bsz, XX, 1, hidden_size) where XX are optional leading dim of hidden_states
output = hidden_states.gather(-2, cls_index).squeeze(-2) # shape (bsz, XX, hidden_size)
elif self.summary_type == "attn":
raise NotImplementedError
output = self.first_dropout(output)
output = self.summary(output)
output = self.activation(output)
output = self.last_dropout(output)
return output
def unwrap_model(model: nn.Module, recursive: bool = False) -> nn.Module:
"""
Recursively unwraps a model from potential containers (as used in distributed training).
Args:
model (`torch.nn.Module`): The model to unwrap.
recursive (`bool`, *optional*, defaults to `False`):
Whether to recursively extract all cases of `module.module` from `model` as well as unwrap child sublayers
recursively, not just the top-level distributed containers.
"""
# Use accelerate implementation if available (should always be the case when using torch)
# This is for pytorch, as we also have to handle things like dynamo
if is_accelerate_available():
kwargs = {}
if recursive:
if not is_accelerate_available("0.29.0"):
raise RuntimeError(
"Setting `recursive=True` to `unwrap_model` requires `accelerate` v0.29.0. Please upgrade your version of accelerate"
)
else:
kwargs["recursive"] = recursive
return extract_model_from_parallel(model, **kwargs)
else:
# since there could be multiple levels of wrapping, unwrap recursively
if hasattr(model, "module"):
return unwrap_model(model.module)
else:
return model
def expand_device_map(device_map, param_names, start_prefix):
"""
Expand a device map to return the correspondance parameter name to device.
"""
new_device_map = {}
param_names = [p[len(start_prefix) :] for p in param_names if p.startswith(start_prefix)]
for module, device in device_map.items():
new_device_map.update(
{p: device for p in param_names if p == module or p.startswith(f"{module}.") or module == ""}
)
return new_device_map
def get_disk_only_shard_files(device_map, sharded_metadata, start_prefix):
"""
Returns the list of shard files containing only weights offloaded to disk.
"""
weight_map = {
p[len(start_prefix) :]: v for p, v in sharded_metadata["weight_map"].items() if p.startswith(start_prefix)
}
files_content = collections.defaultdict(list)
for weight_name, filename in weight_map.items():
while len(weight_name) > 0 and weight_name not in device_map:
weight_name = ".".join(weight_name.split(".")[:-1])
files_content[filename].append(device_map[weight_name])
return [fname for fname, devices in files_content.items() if set(devices) == {"disk"}]
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_flax_utils.py | # coding=utf-8
# Copyright 2021 The Google Flax Team Authors and The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import gc
import json
import os
import re
import warnings
from functools import partial
from pickle import UnpicklingError
from typing import Any, Dict, Optional, Set, Tuple, Union
import flax.linen as nn
import jax
import jax.numpy as jnp
import msgpack.exceptions
from flax.core.frozen_dict import FrozenDict, unfreeze
from flax.serialization import from_bytes, to_bytes
from flax.traverse_util import flatten_dict, unflatten_dict
from jax.random import PRNGKey
from .configuration_utils import PretrainedConfig
from .dynamic_module_utils import custom_object_save
from .generation import FlaxGenerationMixin, GenerationConfig
from .modeling_flax_pytorch_utils import load_pytorch_checkpoint_in_flax_state_dict
from .utils import (
FLAX_WEIGHTS_INDEX_NAME,
FLAX_WEIGHTS_NAME,
SAFE_WEIGHTS_INDEX_NAME,
SAFE_WEIGHTS_NAME,
WEIGHTS_INDEX_NAME,
WEIGHTS_NAME,
PushToHubMixin,
add_code_sample_docstrings,
add_start_docstrings_to_model_forward,
cached_file,
copy_func,
download_url,
has_file,
is_offline_mode,
is_remote_url,
logging,
replace_return_docstrings,
)
from .utils.hub import convert_file_size_to_int, get_checkpoint_shard_files
from .utils.import_utils import is_safetensors_available
if is_safetensors_available():
from safetensors import safe_open
from safetensors.flax import load_file as safe_load_file
from safetensors.flax import save_file as safe_save_file
logger = logging.get_logger(__name__)
def quick_gelu(x):
return x * jax.nn.sigmoid(1.702 * x)
ACT2FN = {
"gelu": partial(nn.gelu, approximate=False),
"relu": nn.relu,
"silu": nn.swish,
"swish": nn.swish,
"gelu_new": partial(nn.gelu, approximate=True),
"quick_gelu": quick_gelu,
"gelu_pytorch_tanh": partial(nn.gelu, approximate=True),
}
def dtype_byte_size(dtype):
"""
Returns the size (in bytes) occupied by one parameter of type `dtype`. Example:
```py
>>> dtype_byte_size(np.float32)
4
```
"""
if dtype == bool:
return 1 / 8
bit_search = re.search(r"[^\d](\d+)$", dtype.name)
if bit_search is None:
raise ValueError(f"`dtype` is not a valid dtype: {dtype}.")
bit_size = int(bit_search.groups()[0])
return bit_size // 8
def flax_shard_checkpoint(params, max_shard_size="10GB"):
"""
Splits a model state dictionary in sub-checkpoints so that the final size of each sub-checkpoint does not exceed a
given size. The sub-checkpoints are determined by iterating through the `state_dict` in the order of its keys, so
there is no optimization made to make each sub-checkpoint as close as possible to the maximum size passed. For
example, if the limit is 10GB and we have weights of sizes [6GB, 6GB, 2GB, 6GB, 2GB, 2GB] they will get sharded as
[6GB], [6+2GB], [6+2+2GB] and not [6+2+2GB], [6+2GB], [6GB].
<Tip warning={true}>
If one of the model's weight is bigger that `max_shard_size`, it will end up in its own sub-checkpoint which will
have a size greater than `max_shard_size`.
</Tip>
Args:
params (`Union[Dict, FrozenDict]`): A `PyTree` of model parameters.
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
The maximum size of each sub-checkpoint. If expressed as a string, needs to be digits followed by a unit
(like `"5MB"`).
"""
max_shard_size = convert_file_size_to_int(max_shard_size)
sharded_state_dicts = []
current_block = {}
current_block_size = 0
total_size = 0
# flatten the weights to chunk
weights = flatten_dict(params, sep="/")
for item in weights:
weight_size = weights[item].size * dtype_byte_size(weights[item].dtype)
# If this weight is going to tip up over the maximal size, we split.
if current_block_size + weight_size > max_shard_size:
sharded_state_dicts.append(current_block)
current_block = {}
current_block_size = 0
current_block[item] = weights[item]
current_block_size += weight_size
total_size += weight_size
# Add the last block
sharded_state_dicts.append(current_block)
# If we only have one shard, we return it
if len(sharded_state_dicts) == 1:
return {FLAX_WEIGHTS_NAME: sharded_state_dicts[0]}, None
# Otherwise, let's build the index
weight_map = {}
shards = {}
for idx, shard in enumerate(sharded_state_dicts):
shard_file = FLAX_WEIGHTS_NAME.replace(".msgpack", f"-{idx+1:05d}-of-{len(sharded_state_dicts):05d}.msgpack")
shards[shard_file] = shard
for weight_name in shard.keys():
weight_map[weight_name] = shard_file
# Add the metadata
metadata = {"total_size": total_size}
index = {"metadata": metadata, "weight_map": weight_map}
return shards, index
class FlaxPreTrainedModel(PushToHubMixin, FlaxGenerationMixin):
r"""
Base class for all models.
[`FlaxPreTrainedModel`] takes care of storing the configuration of the models and handles methods for loading,
downloading and saving models.
Class attributes (overridden by derived classes):
- **config_class** ([`PretrainedConfig`]) -- A subclass of [`PretrainedConfig`] to use as configuration class
for this model architecture.
- **base_model_prefix** (`str`) -- A string indicating the attribute associated to the base model in derived
classes of the same architecture adding modules on top of the base model.
- **main_input_name** (`str`) -- The name of the principal input to the model (often `input_ids` for NLP
models, `pixel_values` for vision models and `input_values` for speech models).
"""
config_class = None
base_model_prefix = ""
main_input_name = "input_ids"
_auto_class = None
_missing_keys = set()
def __init__(
self,
config: PretrainedConfig,
module: nn.Module,
input_shape: Tuple = (1, 1),
seed: int = 0,
dtype: jnp.dtype = jnp.float32,
_do_init: bool = True,
):
if config is None:
raise ValueError("config cannot be None")
if module is None:
raise ValueError("module cannot be None")
# Those are private to be exposed as typed property on derived classes.
self._config = config
self._module = module
# Those are public as their type is generic to every derived classes.
self.key = PRNGKey(seed)
self.dtype = dtype
self.input_shape = input_shape
self.generation_config = GenerationConfig.from_model_config(config) if self.can_generate() else None
# To check if the model was initialized automatically.
self._is_initialized = _do_init
if _do_init:
# randomly initialized parameters
random_params = self.init_weights(self.key, input_shape)
params_shape_tree = jax.eval_shape(lambda params: params, random_params)
else:
init_fn = partial(self.init_weights, input_shape=input_shape)
params_shape_tree = jax.eval_shape(init_fn, self.key)
logger.info(
"Model weights are not initialized as `_do_init` is set to `False`. "
f"Make sure to call `{self.__class__.__name__}.init_weights` manually to initialize the weights."
)
# get the shape of the parameters
self._params_shape_tree = params_shape_tree
# save required_params as set
self._required_params = set(flatten_dict(unfreeze(params_shape_tree)).keys())
# initialize the parameters
if _do_init:
self.params = random_params
def init_weights(self, rng: jax.random.PRNGKey, input_shape: Tuple, params: FrozenDict = None) -> Dict:
raise NotImplementedError(f"init method has to be implemented for {self}")
def enable_gradient_checkpointing(self):
raise NotImplementedError(f"gradient checkpointing method has to be implemented for {self}")
@classmethod
def _from_config(cls, config, **kwargs):
"""
All context managers that the model should be initialized under go here.
"""
return cls(config, **kwargs)
@property
def framework(self) -> str:
"""
:str: Identifies that this is a Flax model.
"""
return "flax"
@property
def config(self) -> PretrainedConfig:
return self._config
@property
def module(self) -> nn.Module:
return self._module
@property
def params(self) -> Union[Dict, FrozenDict]:
if not self._is_initialized:
raise ValueError(
"`params` cannot be accessed from model when the model is created with `_do_init=False`. "
"You must call `init_weights` manually and store the params outside of the model and "
"pass it explicitly where needed."
)
return self._params
@property
def required_params(self) -> Set:
return self._required_params
@property
def params_shape_tree(self) -> Dict:
return self._params_shape_tree
@params.setter
def params(self, params: Union[Dict, FrozenDict]):
# don't set params if the model is not initialized
if not self._is_initialized:
raise ValueError(
"`params` cannot be set from model when the model is created with `_do_init=False`. "
"You store the params outside of the model."
)
if isinstance(params, FrozenDict):
params = unfreeze(params)
param_keys = set(flatten_dict(params).keys())
if len(self.required_params - param_keys) > 0:
raise ValueError(
"Some parameters are missing. Make sure that `params` include the following "
f"parameters {self.required_params - param_keys}"
)
self._params = params
def _cast_floating_to(self, params: Union[Dict, FrozenDict], dtype: jnp.dtype, mask: Any = None) -> Any:
"""
Helper method to cast floating-point values of given parameter `PyTree` to given `dtype`.
"""
# taken from https://github.com/deepmind/jmp/blob/3a8318abc3292be38582794dbf7b094e6583b192/jmp/_src/policy.py#L27
def conditional_cast(param):
if isinstance(param, jnp.ndarray) and jnp.issubdtype(param.dtype, jnp.floating):
param = param.astype(dtype)
return param
if mask is None:
return jax.tree_util.tree_map(conditional_cast, params)
flat_params = flatten_dict(params)
flat_mask, _ = jax.tree_util.tree_flatten(mask)
for masked, key in zip(flat_mask, sorted(flat_params.keys())):
if masked:
flat_params[key] = conditional_cast(flat_params[key])
return unflatten_dict(flat_params)
def to_bf16(self, params: Union[Dict, FrozenDict], mask: Any = None):
r"""
Cast the floating-point `params` to `jax.numpy.bfloat16`. This returns a new `params` tree and does not cast
the `params` in place.
This method can be used on TPU to explicitly convert the model parameters to bfloat16 precision to do full
half-precision training or to save weights in bfloat16 for inference in order to save memory and improve speed.
Arguments:
params (`Union[Dict, FrozenDict]`):
A `PyTree` of model parameters.
mask (`Union[Dict, FrozenDict]`):
A `PyTree` with same structure as the `params` tree. The leaves should be booleans, `True` for params
you want to cast, and should be `False` for those you want to skip.
Examples:
```python
>>> from transformers import FlaxBertModel
>>> # load model
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> # By default, the model parameters will be in fp32 precision, to cast these to bfloat16 precision
>>> model.params = model.to_bf16(model.params)
>>> # If you want don't want to cast certain parameters (for example layer norm bias and scale)
>>> # then pass the mask as follows
>>> from flax import traverse_util
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> flat_params = traverse_util.flatten_dict(model.params)
>>> mask = {
... path: (path[-2] != ("LayerNorm", "bias") and path[-2:] != ("LayerNorm", "scale"))
... for path in flat_params
... }
>>> mask = traverse_util.unflatten_dict(mask)
>>> model.params = model.to_bf16(model.params, mask)
```"""
return self._cast_floating_to(params, jnp.bfloat16, mask)
def to_fp32(self, params: Union[Dict, FrozenDict], mask: Any = None):
r"""
Cast the floating-point `parmas` to `jax.numpy.float32`. This method can be used to explicitly convert the
model parameters to fp32 precision. This returns a new `params` tree and does not cast the `params` in place.
Arguments:
params (`Union[Dict, FrozenDict]`):
A `PyTree` of model parameters.
mask (`Union[Dict, FrozenDict]`):
A `PyTree` with same structure as the `params` tree. The leaves should be booleans, `True` for params
you want to cast, and should be `False` for those you want to skip
Examples:
```python
>>> from transformers import FlaxBertModel
>>> # Download model and configuration from huggingface.co
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> # By default, the model params will be in fp32, to illustrate the use of this method,
>>> # we'll first cast to fp16 and back to fp32
>>> model.params = model.to_f16(model.params)
>>> # now cast back to fp32
>>> model.params = model.to_fp32(model.params)
```"""
return self._cast_floating_to(params, jnp.float32, mask)
def to_fp16(self, params: Union[Dict, FrozenDict], mask: Any = None):
r"""
Cast the floating-point `parmas` to `jax.numpy.float16`. This returns a new `params` tree and does not cast the
`params` in place.
This method can be used on GPU to explicitly convert the model parameters to float16 precision to do full
half-precision training or to save weights in float16 for inference in order to save memory and improve speed.
Arguments:
params (`Union[Dict, FrozenDict]`):
A `PyTree` of model parameters.
mask (`Union[Dict, FrozenDict]`):
A `PyTree` with same structure as the `params` tree. The leaves should be booleans, `True` for params
you want to cast, and should be `False` for those you want to skip
Examples:
```python
>>> from transformers import FlaxBertModel
>>> # load model
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> # By default, the model params will be in fp32, to cast these to float16
>>> model.params = model.to_fp16(model.params)
>>> # If you want don't want to cast certain parameters (for example layer norm bias and scale)
>>> # then pass the mask as follows
>>> from flax import traverse_util
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> flat_params = traverse_util.flatten_dict(model.params)
>>> mask = {
... path: (path[-2] != ("LayerNorm", "bias") and path[-2:] != ("LayerNorm", "scale"))
... for path in flat_params
... }
>>> mask = traverse_util.unflatten_dict(mask)
>>> model.params = model.to_fp16(model.params, mask)
```"""
return self._cast_floating_to(params, jnp.float16, mask)
@classmethod
def load_flax_weights(cls, resolved_archive_file):
try:
if resolved_archive_file.endswith(".safetensors"):
state = safe_load_file(resolved_archive_file)
state = unflatten_dict(state, sep=".")
else:
with open(resolved_archive_file, "rb") as state_f:
state = from_bytes(cls, state_f.read())
except (UnpicklingError, msgpack.exceptions.ExtraData) as e:
try:
with open(resolved_archive_file) as f:
if f.read().startswith("version"):
raise OSError(
"You seem to have cloned a repository without having git-lfs installed. Please"
" install git-lfs and run `git lfs install` followed by `git lfs pull` in the"
" folder you cloned."
)
else:
raise ValueError from e
except (UnicodeDecodeError, ValueError):
raise EnvironmentError(f"Unable to convert {resolved_archive_file} to Flax deserializable object. ")
return state
@classmethod
def load_flax_sharded_weights(cls, shard_files):
"""
This is the same as [`flax.serialization.from_bytes`]
(https:lax.readthedocs.io/en/latest/_modules/flax/serialization.html#from_bytes) but for a sharded checkpoint.
This load is performed efficiently: each checkpoint shard is loaded one by one in RAM and deleted after being
loaded in the model.
Args:
shard_files (`List[str]`:
The list of shard files to load.
Returns:
`Dict`: A nested dictionary of the model parameters, in the expected format for flax models : `{'model':
{'params': {'...'}}}`.
"""
# Load the index
state_sharded_dict = {}
for shard_file in shard_files:
# load using msgpack utils
try:
with open(shard_file, "rb") as state_f:
state = from_bytes(cls, state_f.read())
except (UnpicklingError, msgpack.exceptions.ExtraData) as e:
with open(shard_file) as f:
if f.read().startswith("version"):
raise OSError(
"You seem to have cloned a repository without having git-lfs installed. Please"
" install git-lfs and run `git lfs install` followed by `git lfs pull` in the"
" folder you cloned."
)
else:
raise ValueError from e
except (UnicodeDecodeError, ValueError):
raise EnvironmentError(f"Unable to convert {shard_file} to Flax deserializable object. ")
state = flatten_dict(state, sep="/")
state_sharded_dict.update(state)
del state
gc.collect()
# the state dict is unflattened to the match the format of model.params
return unflatten_dict(state_sharded_dict, sep="/")
@classmethod
def can_generate(cls) -> bool:
"""
Returns whether this model can generate sequences with `.generate()`. Returns:
`bool`: Whether this model can generate sequences with `.generate()`.
"""
# Detects whether `prepare_inputs_for_generation` has been overwritten, which is a requirement for generation.
# Alternativelly, the model can also have a custom `generate` function.
if "GenerationMixin" in str(cls.prepare_inputs_for_generation) and "GenerationMixin" in str(cls.generate):
return False
return True
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
dtype: jnp.dtype = jnp.float32,
*model_args,
config: Optional[Union[PretrainedConfig, str, os.PathLike]] = None,
cache_dir: Optional[Union[str, os.PathLike]] = None,
ignore_mismatched_sizes: bool = False,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
**kwargs,
):
r"""
Instantiate a pretrained flax model from a pre-trained model configuration.
The warning *Weights from XXX not initialized from pretrained model* means that the weights of XXX do not come
pretrained with the rest of the model. It is up to you to train those weights with a downstream fine-tuning
task.
The warning *Weights from XXX not used in YYY* means that the layer XXX is not used by YYY, therefore those
weights are discarded.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`):
Can be either:
- A string, the *model id* of a pretrained model hosted inside a model repo on huggingface.co.
- A path to a *directory* containing model weights saved using
[`~FlaxPreTrainedModel.save_pretrained`], e.g., `./my_model_directory/`.
- A path or url to a *pt index checkpoint file* (e.g, `./tf_model/model.ckpt.index`). In this case,
`from_pt` should be set to `True`.
dtype (`jax.numpy.dtype`, *optional*, defaults to `jax.numpy.float32`):
The data type of the computation. Can be one of `jax.numpy.float32`, `jax.numpy.float16` (on GPUs) and
`jax.numpy.bfloat16` (on TPUs).
This can be used to enable mixed-precision training or half-precision inference on GPUs or TPUs. If
specified all the computation will be performed with the given `dtype`.
**Note that this only specifies the dtype of the computation and does not influence the dtype of model
parameters.**
If you wish to change the dtype of the model parameters, see [`~FlaxPreTrainedModel.to_fp16`] and
[`~FlaxPreTrainedModel.to_bf16`].
model_args (sequence of positional arguments, *optional*):
All remaining positional arguments will be passed to the underlying model's `__init__` method.
config (`Union[PretrainedConfig, str, os.PathLike]`, *optional*):
Can be either:
- an instance of a class derived from [`PretrainedConfig`],
- a string or path valid as input to [`~PretrainedConfig.from_pretrained`].
Configuration for the model to use instead of an automatically loaded configuration. Configuration can
be automatically loaded when:
- The model is a model provided by the library (loaded with the *model id* string of a pretrained
model).
- The model was saved using [`~PreTrainedModel.save_pretrained`] and is reloaded by supplying the
save directory.
- The model is loaded by supplying a local directory as `pretrained_model_name_or_path` and a
configuration JSON file named *config.json* is found in the directory.
cache_dir (`Union[str, os.PathLike]`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the
standard cache should not be used.
from_pt (`bool`, *optional*, defaults to `False`):
Load the model weights from a PyTorch checkpoint save file (see docstring of
`pretrained_model_name_or_path` argument).
ignore_mismatched_sizes (`bool`, *optional*, defaults to `False`):
Whether or not to raise an error if some of the weights from the checkpoint do not have the same size
as the weights of the model (if for instance, you are instantiating a model with 10 labels from a
checkpoint with 3 labels).
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force the (re-)download of the model weights and configuration files, overriding the
cached versions if they exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received files. Will attempt to resume the download if such a
file exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request.
local_files_only(`bool`, *optional*, defaults to `False`):
Whether or not to only look at local files (i.e., do not try to download the model).
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
<Tip>
To test a pull request you made on the Hub, you can pass `revision="refs/pr/<pr_number>".
</Tip>
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
kwargs (remaining dictionary of keyword arguments, *optional*):
Can be used to update the configuration object (after it being loaded) and initiate the model (e.g.,
`output_attentions=True`). Behaves differently depending on whether a `config` is provided or
automatically loaded:
- If a configuration is provided with `config`, `**kwargs` will be directly passed to the
underlying model's `__init__` method (we assume all relevant updates to the configuration have
already been done)
- If a configuration is not provided, `kwargs` will be first passed to the configuration class
initialization function ([`~PretrainedConfig.from_pretrained`]). Each key of `kwargs` that
corresponds to a configuration attribute will be used to override said attribute with the
supplied `kwargs` value. Remaining keys that do not correspond to any configuration attribute
will be passed to the underlying model's `__init__` function.
Examples:
```python
>>> from transformers import BertConfig, FlaxBertModel
>>> # Download model and configuration from huggingface.co and cache.
>>> model = FlaxBertModel.from_pretrained("google-bert/bert-base-cased")
>>> # Model was saved using *save_pretrained('./test/saved_model/')* (for example purposes, not runnable).
>>> model = FlaxBertModel.from_pretrained("./test/saved_model/")
>>> # Loading from a PyTorch checkpoint file instead of a PyTorch model (slower, for example purposes, not runnable).
>>> config = BertConfig.from_json_file("./pt_model/config.json")
>>> model = FlaxBertModel.from_pretrained("./pt_model/pytorch_model.bin", from_pt=True, config=config)
```"""
from_pt = kwargs.pop("from_pt", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
use_auth_token = kwargs.pop("use_auth_token", None)
trust_remote_code = kwargs.pop("trust_remote_code", None)
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
_do_init = kwargs.pop("_do_init", True)
subfolder = kwargs.pop("subfolder", "")
commit_hash = kwargs.pop("_commit_hash", None)
# Not relevant for Flax Models
_ = kwargs.pop("adapter_kwargs", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if trust_remote_code is True:
logger.warning(
"The argument `trust_remote_code` is to be used with Auto classes. It has no effect here and is"
" ignored."
)
user_agent = {"file_type": "model", "framework": "flax", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
# Load config if we don't provide a configuration
if not isinstance(config, PretrainedConfig):
config_path = config if config is not None else pretrained_model_name_or_path
config, model_kwargs = cls.config_class.from_pretrained(
config_path,
cache_dir=cache_dir,
return_unused_kwargs=True,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
_commit_hash=commit_hash,
**kwargs,
)
else:
model_kwargs = kwargs.copy()
if commit_hash is None:
commit_hash = getattr(config, "_commit_hash", None)
# Add the dtype to model_kwargs
model_kwargs["dtype"] = dtype
# This variable will flag if we're loading a sharded checkpoint. In this case the archive file is just the
# index of the files.
is_sharded = False
# Load model
if pretrained_model_name_or_path is not None:
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if os.path.isdir(pretrained_model_name_or_path):
if os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_NAME)):
# Load from a Flax checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_NAME)
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_INDEX_NAME)):
# Load from a sharded Flax checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, FLAX_WEIGHTS_INDEX_NAME)
is_sharded = True
elif is_safetensors_available() and os.path.isfile(
os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_NAME)
):
# Load from a safetensors checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_NAME)
elif from_pt and os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, WEIGHTS_NAME)):
# Load from a PyTorch checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, WEIGHTS_NAME)
elif from_pt and os.path.isfile(
os.path.join(pretrained_model_name_or_path, subfolder, WEIGHTS_INDEX_NAME)
):
# Load from a sharded pytorch checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, subfolder, WEIGHTS_INDEX_NAME)
is_sharded = True
# At this stage we don't have a weight file so we will raise an error.
elif is_safetensors_available() and os.path.isfile(
os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME)
):
# Load from a sharded safetensors checkpoint
archive_file = os.path.join(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME)
is_sharded = True
raise NotImplementedError("Support for sharded checkpoints using safetensors is coming soon!")
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, subfolder, WEIGHTS_NAME)):
raise EnvironmentError(
f"Error no file named {FLAX_WEIGHTS_NAME} found in directory {pretrained_model_name_or_path} "
"but there is a file for PyTorch weights. Use `from_pt=True` to load this model from those "
"weights."
)
else:
raise EnvironmentError(
f"Error no file named {FLAX_WEIGHTS_NAME} or {WEIGHTS_NAME} found in directory "
f"{pretrained_model_name_or_path}."
)
elif os.path.isfile(os.path.join(subfolder, pretrained_model_name_or_path)):
archive_file = pretrained_model_name_or_path
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
filename = pretrained_model_name_or_path
resolved_archive_file = download_url(pretrained_model_name_or_path)
else:
if from_pt:
filename = WEIGHTS_NAME
else:
filename = FLAX_WEIGHTS_NAME
try:
# Load from URL or cache if already cached
cached_file_kwargs = {
"cache_dir": cache_dir,
"force_download": force_download,
"proxies": proxies,
"resume_download": resume_download,
"local_files_only": local_files_only,
"token": token,
"user_agent": user_agent,
"revision": revision,
"subfolder": subfolder,
"_raise_exceptions_for_gated_repo": False,
"_raise_exceptions_for_missing_entries": False,
"_commit_hash": commit_hash,
}
resolved_archive_file = cached_file(pretrained_model_name_or_path, filename, **cached_file_kwargs)
# Maybe the checkpoint is sharded, we try to grab the index name in this case.
if resolved_archive_file is None and filename == FLAX_WEIGHTS_NAME:
resolved_archive_file = cached_file(
pretrained_model_name_or_path, FLAX_WEIGHTS_INDEX_NAME, **cached_file_kwargs
)
if resolved_archive_file is not None:
is_sharded = True
# Maybe the checkpoint is pytorch sharded, we try to grab the pytorch index name in this case.
if resolved_archive_file is None and from_pt:
resolved_archive_file = cached_file(
pretrained_model_name_or_path, WEIGHTS_INDEX_NAME, **cached_file_kwargs
)
if resolved_archive_file is not None:
is_sharded = True
# If we still haven't found anything, look for `safetensors`.
if resolved_archive_file is None:
# No support for sharded safetensors yet, so we'll raise an error if that's all we find.
filename = SAFE_WEIGHTS_NAME
resolved_archive_file = cached_file(
pretrained_model_name_or_path, SAFE_WEIGHTS_NAME, **cached_file_kwargs
)
# Since we set _raise_exceptions_for_missing_entries=False, we don't get an exception but a None
# result when internet is up, the repo and revision exist, but the file does not.
if resolved_archive_file is None:
# Otherwise, maybe there is a TF or Torch model file. We try those to give a helpful error
# message.
has_file_kwargs = {
"revision": revision,
"proxies": proxies,
"token": token,
}
if has_file(pretrained_model_name_or_path, SAFE_WEIGHTS_INDEX_NAME, **has_file_kwargs):
is_sharded = True
raise NotImplementedError(
"Support for sharded checkpoints using safetensors is coming soon!"
)
elif has_file(pretrained_model_name_or_path, WEIGHTS_NAME, **has_file_kwargs):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {FLAX_WEIGHTS_NAME} but there is a file for PyTorch weights. Use `from_pt=True` to"
" load this model from those weights."
)
elif has_file(pretrained_model_name_or_path, WEIGHTS_INDEX_NAME, **has_file_kwargs):
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {FLAX_WEIGHTS_INDEX_NAME} but there is a sharded file for PyTorch weights. Use"
" `from_pt=True` to load this model from those weights."
)
else:
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named"
f" {FLAX_WEIGHTS_NAME} or {WEIGHTS_NAME}."
)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted
# to the original exception.
raise
except Exception:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load the model for '{pretrained_model_name_or_path}'. If you were trying to load it"
" from 'https://huggingface.co/models', make sure you don't have a local directory with the"
f" same name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a"
f" directory containing a file named {FLAX_WEIGHTS_NAME} or {WEIGHTS_NAME}."
)
if is_local:
logger.info(f"loading weights file {archive_file}")
resolved_archive_file = archive_file
filename = resolved_archive_file.split(os.path.sep)[-1]
else:
logger.info(f"loading weights file {filename} from cache at {resolved_archive_file}")
else:
resolved_archive_file = None
# We'll need to download and cache each checkpoint shard if the checkpoint is sharded.
if is_sharded:
# resolved_archive_file becomes a list of files that point to the different checkpoint shards in this case.
resolved_archive_file, _ = get_checkpoint_shard_files(
pretrained_model_name_or_path,
resolved_archive_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
_commit_hash=commit_hash,
)
safetensors_from_pt = False
if filename == SAFE_WEIGHTS_NAME:
with safe_open(resolved_archive_file, framework="flax") as f:
safetensors_metadata = f.metadata()
if safetensors_metadata is None or safetensors_metadata.get("format") not in ["pt", "tf", "flax"]:
raise OSError(
f"The safetensors archive passed at {resolved_archive_file} does not contain the valid metadata."
" Make sure you save your model with the `save_pretrained` method."
)
safetensors_from_pt = safetensors_metadata.get("format") == "pt"
# init random models
model = cls(config, *model_args, _do_init=_do_init, **model_kwargs)
if from_pt or safetensors_from_pt:
state = load_pytorch_checkpoint_in_flax_state_dict(model, resolved_archive_file, is_sharded)
else:
if is_sharded:
state = cls.load_flax_sharded_weights(resolved_archive_file)
else:
state = cls.load_flax_weights(resolved_archive_file)
# make sure all arrays are stored as jnp.arrays
# NOTE: This is to prevent a bug this will be fixed in Flax >= v0.3.4:
# https://github.com/google/flax/issues/1261
if _do_init:
state = jax.tree_util.tree_map(jnp.array, state)
else:
# keep the params on CPU if we don't want to initialize
state = jax.tree_util.tree_map(lambda x: jax.device_put(x, jax.local_devices(backend="cpu")[0]), state)
if "batch_stats" in state: # if flax model contains batch norm layers
# if model is base model only use model_prefix key
if (
cls.base_model_prefix not in dict(model.params_shape_tree["params"])
and cls.base_model_prefix in state["params"]
):
state["params"] = state["params"][cls.base_model_prefix]
state["batch_stats"] = state["batch_stats"][cls.base_model_prefix]
# if model is head model and we are loading weights from base model
# we initialize new params dict with base_model_prefix
if (
cls.base_model_prefix in dict(model.params_shape_tree["params"])
and cls.base_model_prefix not in state["params"]
):
state = {
"params": {cls.base_model_prefix: state["params"]},
"batch_stats": {cls.base_model_prefix: state["batch_stats"]},
}
else:
# if model is base model only use model_prefix key
if cls.base_model_prefix not in dict(model.params_shape_tree) and cls.base_model_prefix in state:
state = state[cls.base_model_prefix]
# if model is head model and we are loading weights from base model
# we initialize new params dict with base_model_prefix
if cls.base_model_prefix in dict(model.params_shape_tree) and cls.base_model_prefix not in state:
state = {cls.base_model_prefix: state}
# flatten dicts
state = flatten_dict(state)
random_state = flatten_dict(unfreeze(model.params if _do_init else model.params_shape_tree))
missing_keys = model.required_params - set(state.keys())
unexpected_keys = set(state.keys()) - model.required_params
# Disabling warning when porting pytorch weights to flax, flax does not uses num_batches_tracked
for unexpected_key in unexpected_keys.copy():
if "num_batches_tracked" in unexpected_key[-1]:
unexpected_keys.remove(unexpected_key)
if missing_keys and not _do_init:
logger.warning(
f"The checkpoint {pretrained_model_name_or_path} is missing required keys: {missing_keys}. "
"Make sure to call model.init_weights to initialize the missing weights."
)
cls._missing_keys = missing_keys
# Mistmatched keys contains tuples key/shape1/shape2 of weights in the checkpoint that have a shape not
# matching the weights in the model.
mismatched_keys = []
for key in state.keys():
if key in random_state and state[key].shape != random_state[key].shape:
if ignore_mismatched_sizes:
mismatched_keys.append((key, state[key].shape, random_state[key].shape))
state[key] = random_state[key]
else:
raise ValueError(
f"Trying to load the pretrained weight for {key} failed: checkpoint has shape "
f"{state[key].shape} which is incompatible with the model shape {random_state[key].shape}. "
"Using `ignore_mismatched_sizes=True` if you really want to load this checkpoint inside this "
"model."
)
# add missing keys as random parameters if we are initializing
if missing_keys and _do_init:
for missing_key in missing_keys:
state[missing_key] = random_state[missing_key]
# remove unexpected keys to not be saved again
for unexpected_key in unexpected_keys:
del state[unexpected_key]
if len(unexpected_keys) > 0:
logger.warning(
f"Some weights of the model checkpoint at {pretrained_model_name_or_path} were not used when"
f" initializing {model.__class__.__name__}: {unexpected_keys}\n- This IS expected if you are"
f" initializing {model.__class__.__name__} from the checkpoint of a model trained on another task or"
" with another architecture (e.g. initializing a BertForSequenceClassification model from a"
" BertForPreTraining model).\n- This IS NOT expected if you are initializing"
f" {model.__class__.__name__} from the checkpoint of a model that you expect to be exactly identical"
" (initializing a BertForSequenceClassification model from a BertForSequenceClassification model)."
)
else:
logger.info(f"All model checkpoint weights were used when initializing {model.__class__.__name__}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some weights of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized: {missing_keys}\nYou should probably"
" TRAIN this model on a down-stream task to be able to use it for predictions and inference."
)
elif len(mismatched_keys) == 0:
logger.info(
f"All the weights of {model.__class__.__name__} were initialized from the model checkpoint at"
f" {pretrained_model_name_or_path}.\nIf your task is similar to the task the model of the checkpoint"
f" was trained on, you can already use {model.__class__.__name__} for predictions without further"
" training."
)
if len(mismatched_keys) > 0:
mismatched_warning = "\n".join(
[
f"- {key}: found shape {shape1} in the checkpoint and {shape2} in the model instantiated"
for key, shape1, shape2 in mismatched_keys
]
)
logger.warning(
f"Some weights of {model.__class__.__name__} were not initialized from the model checkpoint at"
f" {pretrained_model_name_or_path} and are newly initialized because the shapes did not"
f" match:\n{mismatched_warning}\nYou should probably TRAIN this model on a down-stream task to be able"
" to use it for predictions and inference."
)
# dictionary of key: dtypes for the model params
param_dtypes = jax.tree_util.tree_map(lambda x: x.dtype, state)
# extract keys of parameters not in jnp.float32
fp16_params = [k for k in param_dtypes if param_dtypes[k] == jnp.float16]
bf16_params = [k for k in param_dtypes if param_dtypes[k] == jnp.bfloat16]
# raise a warning if any of the parameters are not in jnp.float32
if len(fp16_params) > 0:
logger.warning(
f"Some of the weights of {model.__class__.__name__} were initialized in float16 precision from "
f"the model checkpoint at {pretrained_model_name_or_path}:\n{fp16_params}\n"
"You should probably UPCAST the model weights to float32 if this was not intended. "
"See [`~FlaxPreTrainedModel.to_fp32`] for further information on how to do this."
)
if len(bf16_params) > 0:
logger.warning(
f"Some of the weights of {model.__class__.__name__} were initialized in bfloat16 precision from "
f"the model checkpoint at {pretrained_model_name_or_path}:\n{bf16_params}\n"
"You should probably UPCAST the model weights to float32 if this was not intended. "
"See [`~FlaxPreTrainedModel.to_fp32`] for further information on how to do this."
)
# If it is a model with generation capabilities, attempt to load the generation config
if model.can_generate():
try:
model.generation_config = GenerationConfig.from_pretrained(
pretrained_model_name_or_path,
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
local_files_only=local_files_only,
token=token,
revision=revision,
subfolder=subfolder,
_from_auto=from_auto_class,
_from_pipeline=from_pipeline,
**kwargs,
)
except OSError:
logger.info(
"Generation config file not found, using a generation config created from the model config."
)
pass
if _do_init:
# set correct parameters
model.params = unflatten_dict(state)
return model
else:
return model, unflatten_dict(state)
def save_pretrained(
self,
save_directory: Union[str, os.PathLike],
params=None,
push_to_hub=False,
max_shard_size="10GB",
token: Optional[Union[str, bool]] = None,
safe_serialization: bool = False,
**kwargs,
):
"""
Save a model and its configuration file to a directory, so that it can be re-loaded using the
`[`~FlaxPreTrainedModel.from_pretrained`]` class method
Arguments:
save_directory (`str` or `os.PathLike`):
Directory to which to save. Will be created if it doesn't exist.
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
max_shard_size (`int` or `str`, *optional*, defaults to `"10GB"`):
The maximum size for a checkpoint before being sharded. Checkpoints shard will then be each of size
lower than this size. If expressed as a string, needs to be digits followed by a unit (like `"5MB"`).
<Tip warning={true}>
If a single weight of the model is bigger than `max_shard_size`, it will be in its own checkpoint shard
which will be bigger than `max_shard_size`.
</Tip>
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
safe_serialization (`bool`, *optional*, defaults to `False`):
Whether to save the model using `safetensors` or through msgpack.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
if os.path.isfile(save_directory):
logger.error(f"Provided path ({save_directory}) should be a directory, not a file")
return
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
# get abs dir
save_directory = os.path.abspath(save_directory)
# save config as well
self.config.architectures = [self.__class__.__name__[4:]]
# If we have a custom model, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=self.config)
self.config.save_pretrained(save_directory)
if self.can_generate():
self.generation_config.save_pretrained(save_directory)
# save model
weights_name = SAFE_WEIGHTS_NAME if safe_serialization else FLAX_WEIGHTS_NAME
output_model_file = os.path.join(save_directory, weights_name)
shards, index = flax_shard_checkpoint(params if params is not None else self.params, max_shard_size)
# Clean the folder from a previous save
for filename in os.listdir(save_directory):
full_filename = os.path.join(save_directory, filename)
weights_no_suffix = weights_name.replace(".bin", "").replace(".safetensors", "")
if (
filename.startswith(weights_no_suffix)
and os.path.isfile(full_filename)
and filename not in shards.keys()
):
os.remove(full_filename)
if index is None:
if safe_serialization:
params = params if params is not None else self.params
flat_dict = flatten_dict(params, sep=".")
safe_save_file(flat_dict, output_model_file, metadata={"format": "flax"})
else:
with open(output_model_file, "wb") as f:
params = params if params is not None else self.params
model_bytes = to_bytes(params)
f.write(model_bytes)
else:
save_index_file = os.path.join(save_directory, FLAX_WEIGHTS_INDEX_NAME)
# Save the index as well
with open(save_index_file, "w", encoding="utf-8") as f:
content = json.dumps(index, indent=2, sort_keys=True) + "\n"
f.write(content)
logger.info(
f"The model is bigger than the maximum size per checkpoint ({max_shard_size}) and is going to be "
f"split in {len(shards)} checkpoint shards. You can find where each parameters has been saved in the "
f"index located at {save_index_file}."
)
for shard_file, shard in shards.items():
# the shard item are unflattened, to save them we need to flatten them again
with open(os.path.join(save_directory, shard_file), mode="wb") as f:
params = unflatten_dict(shard, sep="/")
shard_bytes = to_bytes(params)
f.write(shard_bytes)
logger.info(f"Model weights saved in {output_model_file}")
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=token,
)
@classmethod
def register_for_auto_class(cls, auto_class="FlaxAutoModel"):
"""
Register this class with a given auto class. This should only be used for custom models as the ones in the
library are already mapped with an auto class.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"FlaxAutoModel"`):
The auto class to register this new model with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
# To update the docstring, we need to copy the method, otherwise we change the original docstring.
FlaxPreTrainedModel.push_to_hub = copy_func(FlaxPreTrainedModel.push_to_hub)
if FlaxPreTrainedModel.push_to_hub.__doc__ is not None:
FlaxPreTrainedModel.push_to_hub.__doc__ = FlaxPreTrainedModel.push_to_hub.__doc__.format(
object="model", object_class="FlaxAutoModel", object_files="model checkpoint"
)
def overwrite_call_docstring(model_class, docstring):
# copy __call__ function to be sure docstring is changed only for this function
model_class.__call__ = copy_func(model_class.__call__)
# delete existing docstring
model_class.__call__.__doc__ = None
# set correct docstring
model_class.__call__ = add_start_docstrings_to_model_forward(docstring)(model_class.__call__)
def append_call_sample_docstring(
model_class, checkpoint, output_type, config_class, mask=None, revision=None, real_checkpoint=None
):
model_class.__call__ = copy_func(model_class.__call__)
model_class.__call__ = add_code_sample_docstrings(
checkpoint=checkpoint,
output_type=output_type,
config_class=config_class,
model_cls=model_class.__name__,
revision=revision,
real_checkpoint=real_checkpoint,
)(model_class.__call__)
def append_replace_return_docstrings(model_class, output_type, config_class):
model_class.__call__ = copy_func(model_class.__call__)
model_class.__call__ = replace_return_docstrings(
output_type=output_type,
config_class=config_class,
)(model_class.__call__)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/hyperparameter_search.py | # coding=utf-8
# Copyright 2023-present the HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .integrations import (
is_optuna_available,
is_ray_tune_available,
is_sigopt_available,
is_wandb_available,
run_hp_search_optuna,
run_hp_search_ray,
run_hp_search_sigopt,
run_hp_search_wandb,
)
from .trainer_utils import (
HPSearchBackend,
default_hp_space_optuna,
default_hp_space_ray,
default_hp_space_sigopt,
default_hp_space_wandb,
)
from .utils import logging
logger = logging.get_logger(__name__)
class HyperParamSearchBackendBase:
name: str
pip_package: str = None
@staticmethod
def is_available():
raise NotImplementedError
def run(self, trainer, n_trials: int, direction: str, **kwargs):
raise NotImplementedError
def default_hp_space(self, trial):
raise NotImplementedError
def ensure_available(self):
if not self.is_available():
raise RuntimeError(
f"You picked the {self.name} backend, but it is not installed. Run {self.pip_install()}."
)
@classmethod
def pip_install(cls):
return f"`pip install {cls.pip_package or cls.name}`"
class OptunaBackend(HyperParamSearchBackendBase):
name = "optuna"
@staticmethod
def is_available():
return is_optuna_available()
def run(self, trainer, n_trials: int, direction: str, **kwargs):
return run_hp_search_optuna(trainer, n_trials, direction, **kwargs)
def default_hp_space(self, trial):
return default_hp_space_optuna(trial)
class RayTuneBackend(HyperParamSearchBackendBase):
name = "ray"
pip_package = "'ray[tune]'"
@staticmethod
def is_available():
return is_ray_tune_available()
def run(self, trainer, n_trials: int, direction: str, **kwargs):
return run_hp_search_ray(trainer, n_trials, direction, **kwargs)
def default_hp_space(self, trial):
return default_hp_space_ray(trial)
class SigOptBackend(HyperParamSearchBackendBase):
name = "sigopt"
@staticmethod
def is_available():
return is_sigopt_available()
def run(self, trainer, n_trials: int, direction: str, **kwargs):
return run_hp_search_sigopt(trainer, n_trials, direction, **kwargs)
def default_hp_space(self, trial):
return default_hp_space_sigopt(trial)
class WandbBackend(HyperParamSearchBackendBase):
name = "wandb"
@staticmethod
def is_available():
return is_wandb_available()
def run(self, trainer, n_trials: int, direction: str, **kwargs):
return run_hp_search_wandb(trainer, n_trials, direction, **kwargs)
def default_hp_space(self, trial):
return default_hp_space_wandb(trial)
ALL_HYPERPARAMETER_SEARCH_BACKENDS = {
HPSearchBackend(backend.name): backend for backend in [OptunaBackend, RayTuneBackend, SigOptBackend, WandbBackend]
}
def default_hp_search_backend() -> str:
available_backends = [backend for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values() if backend.is_available()]
if len(available_backends) > 0:
name = available_backends[0].name
if len(available_backends) > 1:
logger.info(
f"{len(available_backends)} hyperparameter search backends available. Using {name} as the default."
)
return name
raise RuntimeError(
"No hyperparameter search backend available.\n"
+ "\n".join(
f" - To install {backend.name} run {backend.pip_install()}"
for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values()
)
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/tf_utils.py | # Copyright 2022 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import List, Optional, Union
import numpy as np
import tensorflow as tf
from .feature_extraction_utils import BatchFeature
from .tokenization_utils_base import BatchEncoding
from .utils import logging
logger = logging.get_logger(__name__)
def shape_list(tensor: Union[tf.Tensor, np.ndarray]) -> List[int]:
"""
Deal with dynamic shape in tensorflow cleanly.
Args:
tensor (`tf.Tensor` or `np.ndarray`): The tensor we want the shape of.
Returns:
`List[int]`: The shape of the tensor as a list.
"""
if isinstance(tensor, np.ndarray):
return list(tensor.shape)
dynamic = tf.shape(tensor)
if tensor.shape == tf.TensorShape(None):
return dynamic
static = tensor.shape.as_list()
return [dynamic[i] if s is None else s for i, s in enumerate(static)]
def stable_softmax(logits: tf.Tensor, axis: Optional[int] = None, name: Optional[str] = None) -> tf.Tensor:
"""
Stable wrapper that returns the same output as `tf.nn.softmax`, but that works reliably with XLA on CPU. It is
meant as a workaround for the [following issue](https://github.com/tensorflow/tensorflow/issues/55682), and will be
removed after it gets fixed. The arguments and outputs are the same as `tf.nn.softmax`, and relies on the fact that
`softmax(x) = softmax(x + c)` (see https://ogunlao.github.io/2020/04/26/you_dont_really_know_softmax.html).
Args:
logits (`tf.Tensor`):
Must be one of the following types: half, float32, float64.
axis (`int`, *optional*):
The dimension softmax would be performed on. The default is -1 which indicates the last dimension.
name (`str`, *optional*):
A name for the operation.
Returns:
`tf.Tensor`:
A Tensor. Has the same type and shape as logits.
"""
# TODO: When the issue linked above gets sorted, add a check on TF version here and use the original function if
# it has the fix. After we drop the support for unfixed versions, remove this function.
return tf.nn.softmax(logits=logits + 1e-9, axis=axis, name=name)
def functional_layernorm(inputs, weight, bias, epsilon=1e-5, axis=-1):
# This is a very simplified functional layernorm, designed to duplicate
# the functionality of PyTorch nn.functional.layer_norm when this is needed to port
# models in Transformers.
if weight.shape.rank != 1 or bias.shape.rank != 1 or not isinstance(axis, int):
raise NotImplementedError("Only 1D weight and bias tensors are supported for now, with only a single axis.")
# Get mean and variance on the axis to be normalized
mean, variance = tf.nn.moments(inputs, axes=[axis], keepdims=True)
if axis != -1:
# Reshape scale and weight to have the same rank as inputs, but with 1 dimensions
# on every dimension except axis
shape = [1] * inputs.shape.rank
shape[axis] = shape_list(inputs)[axis]
weight = tf.reshape(weight, shape)
bias = tf.reshape(bias, shape)
# Compute layer normalization using the batch_normalization
# function.
outputs = tf.nn.batch_normalization(
inputs,
mean,
variance,
offset=bias,
scale=weight,
variance_epsilon=epsilon,
)
return outputs
def flatten(input, start_dim=0, end_dim=-1):
# Replicates the behavior of torch.flatten in TF
# If end_dim or start_dim is negative, count them from the end
if end_dim < 0:
end_dim += input.shape.rank
if start_dim < 0:
start_dim += input.shape.rank
if start_dim == end_dim:
return input
in_shape = tf.shape(input)
flattened_dim = tf.math.reduce_prod(in_shape[start_dim : end_dim + 1])
out_shape = tf.concat([in_shape[:start_dim], [flattened_dim], in_shape[end_dim + 1 :]], axis=0)
return tf.reshape(input, out_shape)
def invert_attention_mask(encoder_attention_mask: tf.Tensor) -> tf.Tensor:
"""
Invert an attention mask (e.g., switches 0. and 1.).
Args:
encoder_attention_mask (`torch.Tensor`): An attention mask.
Returns:
`tf.Tensor`: The inverted attention mask.
"""
if not isinstance(encoder_attention_mask, tf.Tensor):
encoder_attention_mask = tf.convert_to_tensor(encoder_attention_mask) # Catches stray NumPy inputs
if encoder_attention_mask.shape.rank == 3:
encoder_extended_attention_mask = encoder_attention_mask[:, None, :, :]
if encoder_attention_mask.shape.rank == 2:
encoder_extended_attention_mask = encoder_attention_mask[:, None, None, :]
# T5 has a mask that can compare sequence ids, we can simulate this here with this transposition
# Cf. https://github.com/tensorflow/mesh/blob/8d2465e9bc93129b913b5ccc6a59aa97abd96ec6/mesh_tensorflow
# /transformer/transformer_layers.py#L270
# encoder_extended_attention_mask = (encoder_extended_attention_mask ==
# encoder_extended_attention_mask.transpose(-1, -2))
encoder_extended_attention_mask = (
tf.cast(1, encoder_attention_mask.dtype) - encoder_extended_attention_mask
) * encoder_extended_attention_mask.dtype.min
return encoder_extended_attention_mask
def check_embeddings_within_bounds(tensor: tf.Tensor, embed_dim: int, tensor_name: str = "input_ids") -> None:
"""
`tf.gather`, on which TF embedding layers are based, won't check positive out of bound indices on GPU, returning
zeros instead. This function adds a check against that dangerous silent behavior.
Args:
tensor (`tf.Tensor`): The tensor of indices to check.
embed_dim (`int`): The embedding dimension.
tensor_name (`str`, *optional*): The name of the tensor to use in the error message.
"""
tf.debugging.assert_less(
tensor,
tf.cast(embed_dim, dtype=tensor.dtype),
message=(
f"The maximum value of {tensor_name} ({tf.math.reduce_max(tensor)}) must be smaller than the embedding "
f"layer's input dimension ({embed_dim}). The likely cause is some problem at tokenization time."
),
)
def save_attributes_to_hdf5_group(group, name, data):
"""Saves attributes (data) of the specified name into the HDF5 group.
This method deals with an inherent problem of HDF5 file which is not able to store data larger than
HDF5_OBJECT_HEADER_LIMIT bytes.
Args:
group: A pointer to a HDF5 group.
name: A name of the attributes to save.
data: Attributes data to store.
Raises:
RuntimeError: If any single attribute is too large to be saved.
Copied from Keras to Transformers to avoid versioning issues.
"""
HDF5_OBJECT_HEADER_LIMIT = 64512
# Check that no item in `data` is larger than `HDF5_OBJECT_HEADER_LIMIT`
# because in that case even chunking the array would not make the saving
# possible.
bad_attributes = [x for x in data if len(x) > HDF5_OBJECT_HEADER_LIMIT]
# Expecting this to never be true.
if bad_attributes:
raise RuntimeError(
"The following attributes cannot be saved to HDF5 file because "
f"they are larger than {HDF5_OBJECT_HEADER_LIMIT} "
f"bytes: {bad_attributes}"
)
data_npy = np.asarray(data)
num_chunks = 1
chunked_data = np.array_split(data_npy, num_chunks)
# This will never loop forever thanks to the test above.
while any(x.nbytes > HDF5_OBJECT_HEADER_LIMIT for x in chunked_data):
num_chunks += 1
chunked_data = np.array_split(data_npy, num_chunks)
if num_chunks > 1:
for chunk_id, chunk_data in enumerate(chunked_data):
group.attrs["%s%d" % (name, chunk_id)] = chunk_data
else:
group.attrs[name] = data
def load_attributes_from_hdf5_group(group, name):
"""Loads attributes of the specified name from the HDF5 group.
This method deals with an inherent problem of HDF5 file which is not able to store data larger than
HDF5_OBJECT_HEADER_LIMIT bytes.
Args:
group: A pointer to a HDF5 group.
name: A name of the attributes to load.
Returns:
data: Attributes data.
Copied from Keras to Transformers to avoid versioning issues.
"""
if name in group.attrs:
data = [n.decode("utf8") if hasattr(n, "decode") else n for n in group.attrs[name]]
else:
data = []
chunk_id = 0
while "%s%d" % (name, chunk_id) in group.attrs:
data.extend(
[n.decode("utf8") if hasattr(n, "decode") else n for n in group.attrs["%s%d" % (name, chunk_id)]]
)
chunk_id += 1
return data
def expand_1d(data):
"""Expands 1-dimensional `Tensor`s into 2-dimensional `Tensor`s.
Copied from Keras to here to avoid versioning issues."""
def _expand_single_1d_tensor(t):
if isinstance(t, tf.Tensor) and t.shape.rank == 1:
return tf.expand_dims(t, axis=-1)
return t
return tf.nest.map_structure(_expand_single_1d_tensor, data)
def convert_batch_encoding(*args, **kwargs):
# Convert HF BatchEncoding/BatchFeature objects in the inputs to dicts that Keras understands
if args and isinstance(args[0], (BatchEncoding, BatchFeature)):
args = list(args)
args[0] = dict(args[0])
elif "x" in kwargs and isinstance(kwargs["x"], (BatchEncoding, BatchFeature)):
kwargs["x"] = dict(kwargs["x"])
return args, kwargs
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/convert_tf_hub_seq_to_seq_bert_to_pytorch.py | # coding=utf-8
# Copyright 2020 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Convert Seq2Seq TF Hub checkpoint."""
import argparse
from . import (
BertConfig,
BertGenerationConfig,
BertGenerationDecoder,
BertGenerationEncoder,
load_tf_weights_in_bert_generation,
logging,
)
logging.set_verbosity_info()
def convert_tf_checkpoint_to_pytorch(tf_hub_path, pytorch_dump_path, is_encoder_named_decoder, vocab_size, is_encoder):
# Initialise PyTorch model
bert_config = BertConfig.from_pretrained(
"google-bert/bert-large-cased",
vocab_size=vocab_size,
max_position_embeddings=512,
is_decoder=True,
add_cross_attention=True,
)
bert_config_dict = bert_config.to_dict()
del bert_config_dict["type_vocab_size"]
config = BertGenerationConfig(**bert_config_dict)
if is_encoder:
model = BertGenerationEncoder(config)
else:
model = BertGenerationDecoder(config)
print(f"Building PyTorch model from configuration: {config}")
# Load weights from tf checkpoint
load_tf_weights_in_bert_generation(
model,
tf_hub_path,
model_class="bert",
is_encoder_named_decoder=is_encoder_named_decoder,
is_encoder=is_encoder,
)
# Save pytorch-model
print(f"Save PyTorch model and config to {pytorch_dump_path}")
model.save_pretrained(pytorch_dump_path)
if __name__ == "__main__":
parser = argparse.ArgumentParser()
# Required parameters
parser.add_argument(
"--tf_hub_path", default=None, type=str, required=True, help="Path to the TensorFlow checkpoint path."
)
parser.add_argument(
"--pytorch_dump_path", default=None, type=str, required=True, help="Path to the output PyTorch model."
)
parser.add_argument(
"--is_encoder_named_decoder",
action="store_true",
help="If decoder has to be renamed to encoder in PyTorch model.",
)
parser.add_argument("--is_encoder", action="store_true", help="If model is an encoder.")
parser.add_argument("--vocab_size", default=50358, type=int, help="Vocab size of model")
args = parser.parse_args()
convert_tf_checkpoint_to_pytorch(
args.tf_hub_path,
args.pytorch_dump_path,
args.is_encoder_named_decoder,
args.vocab_size,
is_encoder=args.is_encoder,
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/__init__.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# When adding a new object to this init, remember to add it twice: once inside the `_import_structure` dictionary and
# once inside the `if TYPE_CHECKING` branch. The `TYPE_CHECKING` should have import statements as usual, but they are
# only there for type checking. The `_import_structure` is a dictionary submodule to list of object names, and is used
# to defer the actual importing for when the objects are requested. This way `import transformers` provides the names
# in the namespace without actually importing anything (and especially none of the backends).
__version__ = "4.41.0.dev0"
from typing import TYPE_CHECKING
# Check the dependencies satisfy the minimal versions required.
from . import dependency_versions_check
from .utils import (
OptionalDependencyNotAvailable,
_LazyModule,
is_bitsandbytes_available,
is_essentia_available,
is_flax_available,
is_g2p_en_available,
is_keras_nlp_available,
is_librosa_available,
is_pretty_midi_available,
is_scipy_available,
is_sentencepiece_available,
is_speech_available,
is_tensorflow_text_available,
is_tf_available,
is_timm_available,
is_tokenizers_available,
is_torch_available,
is_torchaudio_available,
is_torchvision_available,
is_vision_available,
logging,
)
logger = logging.get_logger(__name__) # pylint: disable=invalid-name
# Base objects, independent of any specific backend
_import_structure = {
"audio_utils": [],
"benchmark": [],
"commands": [],
"configuration_utils": ["PretrainedConfig"],
"convert_graph_to_onnx": [],
"convert_slow_tokenizers_checkpoints_to_fast": [],
"convert_tf_hub_seq_to_seq_bert_to_pytorch": [],
"data": [
"DataProcessor",
"InputExample",
"InputFeatures",
"SingleSentenceClassificationProcessor",
"SquadExample",
"SquadFeatures",
"SquadV1Processor",
"SquadV2Processor",
"glue_compute_metrics",
"glue_convert_examples_to_features",
"glue_output_modes",
"glue_processors",
"glue_tasks_num_labels",
"squad_convert_examples_to_features",
"xnli_compute_metrics",
"xnli_output_modes",
"xnli_processors",
"xnli_tasks_num_labels",
],
"data.data_collator": [
"DataCollator",
"DataCollatorForLanguageModeling",
"DataCollatorForPermutationLanguageModeling",
"DataCollatorForSeq2Seq",
"DataCollatorForSOP",
"DataCollatorForTokenClassification",
"DataCollatorForWholeWordMask",
"DataCollatorWithPadding",
"DefaultDataCollator",
"default_data_collator",
],
"data.metrics": [],
"data.processors": [],
"debug_utils": [],
"deepspeed": [],
"dependency_versions_check": [],
"dependency_versions_table": [],
"dynamic_module_utils": [],
"feature_extraction_sequence_utils": ["SequenceFeatureExtractor"],
"feature_extraction_utils": ["BatchFeature", "FeatureExtractionMixin"],
"file_utils": [],
"generation": ["GenerationConfig", "TextIteratorStreamer", "TextStreamer"],
"hf_argparser": ["HfArgumentParser"],
"hyperparameter_search": [],
"image_transforms": [],
"integrations": [
"is_clearml_available",
"is_comet_available",
"is_dvclive_available",
"is_neptune_available",
"is_optuna_available",
"is_ray_available",
"is_ray_tune_available",
"is_sigopt_available",
"is_tensorboard_available",
"is_wandb_available",
],
"modelcard": ["ModelCard"],
"modeling_tf_pytorch_utils": [
"convert_tf_weight_name_to_pt_weight_name",
"load_pytorch_checkpoint_in_tf2_model",
"load_pytorch_model_in_tf2_model",
"load_pytorch_weights_in_tf2_model",
"load_tf2_checkpoint_in_pytorch_model",
"load_tf2_model_in_pytorch_model",
"load_tf2_weights_in_pytorch_model",
],
"models": [],
# Models
"models.albert": ["ALBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "AlbertConfig"],
"models.align": [
"ALIGN_PRETRAINED_CONFIG_ARCHIVE_MAP",
"AlignConfig",
"AlignProcessor",
"AlignTextConfig",
"AlignVisionConfig",
],
"models.altclip": [
"ALTCLIP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"AltCLIPConfig",
"AltCLIPProcessor",
"AltCLIPTextConfig",
"AltCLIPVisionConfig",
],
"models.audio_spectrogram_transformer": [
"AUDIO_SPECTROGRAM_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"ASTConfig",
"ASTFeatureExtractor",
],
"models.auto": [
"ALL_PRETRAINED_CONFIG_ARCHIVE_MAP",
"CONFIG_MAPPING",
"FEATURE_EXTRACTOR_MAPPING",
"IMAGE_PROCESSOR_MAPPING",
"MODEL_NAMES_MAPPING",
"PROCESSOR_MAPPING",
"TOKENIZER_MAPPING",
"AutoConfig",
"AutoFeatureExtractor",
"AutoImageProcessor",
"AutoProcessor",
"AutoTokenizer",
],
"models.autoformer": [
"AUTOFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"AutoformerConfig",
],
"models.bark": [
"BarkCoarseConfig",
"BarkConfig",
"BarkFineConfig",
"BarkProcessor",
"BarkSemanticConfig",
],
"models.bart": ["BartConfig", "BartTokenizer"],
"models.barthez": [],
"models.bartpho": [],
"models.beit": ["BEIT_PRETRAINED_CONFIG_ARCHIVE_MAP", "BeitConfig"],
"models.bert": [
"BERT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BasicTokenizer",
"BertConfig",
"BertTokenizer",
"WordpieceTokenizer",
],
"models.bert_generation": ["BertGenerationConfig"],
"models.bert_japanese": [
"BertJapaneseTokenizer",
"CharacterTokenizer",
"MecabTokenizer",
],
"models.bertweet": ["BertweetTokenizer"],
"models.big_bird": ["BIG_BIRD_PRETRAINED_CONFIG_ARCHIVE_MAP", "BigBirdConfig"],
"models.bigbird_pegasus": [
"BIGBIRD_PEGASUS_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BigBirdPegasusConfig",
],
"models.biogpt": [
"BIOGPT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BioGptConfig",
"BioGptTokenizer",
],
"models.bit": ["BIT_PRETRAINED_CONFIG_ARCHIVE_MAP", "BitConfig"],
"models.blenderbot": [
"BLENDERBOT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BlenderbotConfig",
"BlenderbotTokenizer",
],
"models.blenderbot_small": [
"BLENDERBOT_SMALL_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BlenderbotSmallConfig",
"BlenderbotSmallTokenizer",
],
"models.blip": [
"BLIP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BlipConfig",
"BlipProcessor",
"BlipTextConfig",
"BlipVisionConfig",
],
"models.blip_2": [
"BLIP_2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Blip2Config",
"Blip2Processor",
"Blip2QFormerConfig",
"Blip2VisionConfig",
],
"models.bloom": ["BLOOM_PRETRAINED_CONFIG_ARCHIVE_MAP", "BloomConfig"],
"models.bridgetower": [
"BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BridgeTowerConfig",
"BridgeTowerProcessor",
"BridgeTowerTextConfig",
"BridgeTowerVisionConfig",
],
"models.bros": [
"BROS_PRETRAINED_CONFIG_ARCHIVE_MAP",
"BrosConfig",
"BrosProcessor",
],
"models.byt5": ["ByT5Tokenizer"],
"models.camembert": ["CAMEMBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "CamembertConfig"],
"models.canine": [
"CANINE_PRETRAINED_CONFIG_ARCHIVE_MAP",
"CanineConfig",
"CanineTokenizer",
],
"models.chinese_clip": [
"CHINESE_CLIP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"ChineseCLIPConfig",
"ChineseCLIPProcessor",
"ChineseCLIPTextConfig",
"ChineseCLIPVisionConfig",
],
"models.clap": [
"CLAP_PRETRAINED_MODEL_ARCHIVE_LIST",
"ClapAudioConfig",
"ClapConfig",
"ClapProcessor",
"ClapTextConfig",
],
"models.clip": [
"CLIP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"CLIPConfig",
"CLIPProcessor",
"CLIPTextConfig",
"CLIPTokenizer",
"CLIPVisionConfig",
],
"models.clipseg": [
"CLIPSEG_PRETRAINED_CONFIG_ARCHIVE_MAP",
"CLIPSegConfig",
"CLIPSegProcessor",
"CLIPSegTextConfig",
"CLIPSegVisionConfig",
],
"models.clvp": [
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"DATA2VEC_VISION_PRETRAINED_CONFIG_ARCHIVE_MAP",
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"Data2VecTextConfig",
"Data2VecVisionConfig",
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"OpenLlamaConfig",
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"TransfoXLConfig",
"TransfoXLCorpus",
"TransfoXLTokenizer",
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"DistilBertConfig",
"DistilBertTokenizer",
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"DonutProcessor",
"DonutSwinConfig",
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"DPRConfig",
"DPRContextEncoderTokenizer",
"DPRQuestionEncoderTokenizer",
"DPRReaderOutput",
"DPRReaderTokenizer",
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"EfficientNetConfig",
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"ElectraConfig",
"ElectraTokenizer",
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"EncodecConfig",
"EncodecFeatureExtractor",
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"ErnieConfig",
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"FASTSPEECH2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"FASTSPEECH2_CONFORMER_WITH_HIFIGAN_PRETRAINED_CONFIG_ARCHIVE_MAP",
"FastSpeech2ConformerConfig",
"FastSpeech2ConformerHifiGanConfig",
"FastSpeech2ConformerTokenizer",
"FastSpeech2ConformerWithHifiGanConfig",
],
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"FLAVA_PRETRAINED_CONFIG_ARCHIVE_MAP",
"FlavaConfig",
"FlavaImageCodebookConfig",
"FlavaImageConfig",
"FlavaMultimodalConfig",
"FlavaTextConfig",
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"FSMTConfig",
"FSMTTokenizer",
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"FUNNEL_PRETRAINED_CONFIG_ARCHIVE_MAP",
"FunnelConfig",
"FunnelTokenizer",
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"GitConfig",
"GitProcessor",
"GitVisionConfig",
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"GPT2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GPT2Config",
"GPT2Tokenizer",
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"GPT_BIGCODE_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GPTBigCodeConfig",
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"GPT_NEOX_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GPTNeoXJapaneseConfig",
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"GPTSAN_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GPTSanJapaneseConfig",
"GPTSanJapaneseTokenizer",
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"GROUNDING_DINO_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GroundingDinoConfig",
"GroundingDinoProcessor",
],
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"GROUPVIT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"GroupViTConfig",
"GroupViTTextConfig",
"GroupViTVisionConfig",
],
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"IDEFICS_PRETRAINED_CONFIG_ARCHIVE_MAP",
"IdeficsConfig",
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"InstructBlipConfig",
"InstructBlipProcessor",
"InstructBlipQFormerConfig",
"InstructBlipVisionConfig",
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"JUKEBOX_PRETRAINED_CONFIG_ARCHIVE_MAP",
"JukeboxConfig",
"JukeboxPriorConfig",
"JukeboxTokenizer",
"JukeboxVQVAEConfig",
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"KOSMOS2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Kosmos2Config",
"Kosmos2Processor",
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"LayoutLMConfig",
"LayoutLMTokenizer",
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"LAYOUTLMV2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"LayoutLMv2Config",
"LayoutLMv2FeatureExtractor",
"LayoutLMv2ImageProcessor",
"LayoutLMv2Processor",
"LayoutLMv2Tokenizer",
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"LayoutLMv3Config",
"LayoutLMv3FeatureExtractor",
"LayoutLMv3ImageProcessor",
"LayoutLMv3Processor",
"LayoutLMv3Tokenizer",
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"LlavaConfig",
"LlavaProcessor",
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"LLAVA_NEXT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"LlavaNextConfig",
"LlavaNextProcessor",
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"LongformerConfig",
"LongformerTokenizer",
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"LukeConfig",
"LukeTokenizer",
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"LXMERT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"LxmertConfig",
"LxmertTokenizer",
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"MarkupLMConfig",
"MarkupLMFeatureExtractor",
"MarkupLMProcessor",
"MarkupLMTokenizer",
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"Mask2FormerConfig",
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"MASKFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"MaskFormerConfig",
"MaskFormerSwinConfig",
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"MgpstrConfig",
"MgpstrProcessor",
"MgpstrTokenizer",
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"MobileBertTokenizer",
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"MobileNetV1Config",
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"MobileNetV2Config",
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"MobileViTV2Config",
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"MPNetTokenizer",
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"MUSICGEN_PRETRAINED_CONFIG_ARCHIVE_MAP",
"MusicgenConfig",
"MusicgenDecoderConfig",
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"MUSICGEN_MELODY_PRETRAINED_MODEL_ARCHIVE_LIST",
"MusicgenMelodyConfig",
"MusicgenMelodyDecoderConfig",
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"OneFormerProcessor",
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"OpenAIGPTConfig",
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"OWLV2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Owlv2Config",
"Owlv2Processor",
"Owlv2TextConfig",
"Owlv2VisionConfig",
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"OwlViTConfig",
"OwlViTProcessor",
"OwlViTTextConfig",
"OwlViTVisionConfig",
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"PATCHTSMIXER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"PatchTSMixerConfig",
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"PegasusTokenizer",
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"PerceiverConfig",
"PerceiverTokenizer",
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"Pix2StructConfig",
"Pix2StructProcessor",
"Pix2StructTextConfig",
"Pix2StructVisionConfig",
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"Pop2PianoConfig",
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"PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP",
"ProphetNetConfig",
"ProphetNetTokenizer",
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"Qwen2Config",
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"Qwen2MoeConfig",
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"RealmConfig",
"RealmTokenizer",
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"ROBERTA_PRETRAINED_CONFIG_ARCHIVE_MAP",
"RobertaConfig",
"RobertaTokenizer",
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"RoCBertConfig",
"RoCBertTokenizer",
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"ROFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"RoFormerConfig",
"RoFormerTokenizer",
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"SamConfig",
"SamMaskDecoderConfig",
"SamProcessor",
"SamPromptEncoderConfig",
"SamVisionConfig",
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"SeamlessM4TConfig",
"SeamlessM4TFeatureExtractor",
"SeamlessM4TProcessor",
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"SiglipProcessor",
"SiglipTextConfig",
"SiglipVisionConfig",
],
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"SPEECH_TO_TEXT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Speech2TextConfig",
"Speech2TextFeatureExtractor",
"Speech2TextProcessor",
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"SPEECH_TO_TEXT_2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Speech2Text2Config",
"Speech2Text2Processor",
"Speech2Text2Tokenizer",
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"SPEECHT5_PRETRAINED_CONFIG_ARCHIVE_MAP",
"SPEECHT5_PRETRAINED_HIFIGAN_CONFIG_ARCHIVE_MAP",
"SpeechT5Config",
"SpeechT5FeatureExtractor",
"SpeechT5HifiGanConfig",
"SpeechT5Processor",
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"SPLINTER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"SplinterConfig",
"SplinterTokenizer",
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"SqueezeBertConfig",
"SqueezeBertTokenizer",
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"SwitchTransformersConfig",
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"TableTransformerConfig",
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"TAPAS_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TapasConfig",
"TapasTokenizer",
],
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"TIME_SERIES_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TimeSeriesTransformerConfig",
],
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"TIMESFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TimesformerConfig",
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"TROCR_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TrOCRConfig",
"TrOCRProcessor",
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"TVLT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TvltConfig",
"TvltFeatureExtractor",
"TvltProcessor",
],
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"TVP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"TvpConfig",
"TvpProcessor",
],
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"UDOP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"UdopConfig",
"UdopProcessor",
],
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"UNISPEECH_PRETRAINED_CONFIG_ARCHIVE_MAP",
"UniSpeechConfig",
],
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"UNISPEECH_SAT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"UniSpeechSatConfig",
],
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"UNIVNET_PRETRAINED_CONFIG_ARCHIVE_MAP",
"UnivNetConfig",
"UnivNetFeatureExtractor",
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"VILT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"ViltConfig",
"ViltFeatureExtractor",
"ViltImageProcessor",
"ViltProcessor",
],
"models.vipllava": [
"VIPLLAVA_PRETRAINED_CONFIG_ARCHIVE_MAP",
"VipLlavaConfig",
],
"models.vision_encoder_decoder": ["VisionEncoderDecoderConfig"],
"models.vision_text_dual_encoder": [
"VisionTextDualEncoderConfig",
"VisionTextDualEncoderProcessor",
],
"models.visual_bert": [
"VISUAL_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"VisualBertConfig",
],
"models.vit": ["VIT_PRETRAINED_CONFIG_ARCHIVE_MAP", "ViTConfig"],
"models.vit_hybrid": [
"VIT_HYBRID_PRETRAINED_CONFIG_ARCHIVE_MAP",
"ViTHybridConfig",
],
"models.vit_mae": ["VIT_MAE_PRETRAINED_CONFIG_ARCHIVE_MAP", "ViTMAEConfig"],
"models.vit_msn": ["VIT_MSN_PRETRAINED_CONFIG_ARCHIVE_MAP", "ViTMSNConfig"],
"models.vitdet": ["VITDET_PRETRAINED_CONFIG_ARCHIVE_MAP", "VitDetConfig"],
"models.vitmatte": ["VITMATTE_PRETRAINED_CONFIG_ARCHIVE_MAP", "VitMatteConfig"],
"models.vits": [
"VITS_PRETRAINED_CONFIG_ARCHIVE_MAP",
"VitsConfig",
"VitsTokenizer",
],
"models.vivit": [
"VIVIT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"VivitConfig",
],
"models.wav2vec2": [
"WAV_2_VEC_2_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Wav2Vec2Config",
"Wav2Vec2CTCTokenizer",
"Wav2Vec2FeatureExtractor",
"Wav2Vec2Processor",
"Wav2Vec2Tokenizer",
],
"models.wav2vec2_bert": [
"WAV2VEC2_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Wav2Vec2BertConfig",
"Wav2Vec2BertProcessor",
],
"models.wav2vec2_conformer": [
"WAV2VEC2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"Wav2Vec2ConformerConfig",
],
"models.wav2vec2_phoneme": ["Wav2Vec2PhonemeCTCTokenizer"],
"models.wav2vec2_with_lm": ["Wav2Vec2ProcessorWithLM"],
"models.wavlm": [
"WAVLM_PRETRAINED_CONFIG_ARCHIVE_MAP",
"WavLMConfig",
],
"models.whisper": [
"WHISPER_PRETRAINED_CONFIG_ARCHIVE_MAP",
"WhisperConfig",
"WhisperFeatureExtractor",
"WhisperProcessor",
"WhisperTokenizer",
],
"models.x_clip": [
"XCLIP_PRETRAINED_CONFIG_ARCHIVE_MAP",
"XCLIPConfig",
"XCLIPProcessor",
"XCLIPTextConfig",
"XCLIPVisionConfig",
],
"models.xglm": ["XGLM_PRETRAINED_CONFIG_ARCHIVE_MAP", "XGLMConfig"],
"models.xlm": ["XLM_PRETRAINED_CONFIG_ARCHIVE_MAP", "XLMConfig", "XLMTokenizer"],
"models.xlm_prophetnet": [
"XLM_PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP",
"XLMProphetNetConfig",
],
"models.xlm_roberta": [
"XLM_ROBERTA_PRETRAINED_CONFIG_ARCHIVE_MAP",
"XLMRobertaConfig",
],
"models.xlm_roberta_xl": [
"XLM_ROBERTA_XL_PRETRAINED_CONFIG_ARCHIVE_MAP",
"XLMRobertaXLConfig",
],
"models.xlnet": ["XLNET_PRETRAINED_CONFIG_ARCHIVE_MAP", "XLNetConfig"],
"models.xmod": ["XMOD_PRETRAINED_CONFIG_ARCHIVE_MAP", "XmodConfig"],
"models.yolos": ["YOLOS_PRETRAINED_CONFIG_ARCHIVE_MAP", "YolosConfig"],
"models.yoso": ["YOSO_PRETRAINED_CONFIG_ARCHIVE_MAP", "YosoConfig"],
"onnx": [],
"pipelines": [
"AudioClassificationPipeline",
"AutomaticSpeechRecognitionPipeline",
"Conversation",
"ConversationalPipeline",
"CsvPipelineDataFormat",
"DepthEstimationPipeline",
"DocumentQuestionAnsweringPipeline",
"FeatureExtractionPipeline",
"FillMaskPipeline",
"ImageClassificationPipeline",
"ImageFeatureExtractionPipeline",
"ImageSegmentationPipeline",
"ImageToImagePipeline",
"ImageToTextPipeline",
"JsonPipelineDataFormat",
"MaskGenerationPipeline",
"NerPipeline",
"ObjectDetectionPipeline",
"PipedPipelineDataFormat",
"Pipeline",
"PipelineDataFormat",
"QuestionAnsweringPipeline",
"SummarizationPipeline",
"TableQuestionAnsweringPipeline",
"Text2TextGenerationPipeline",
"TextClassificationPipeline",
"TextGenerationPipeline",
"TextToAudioPipeline",
"TokenClassificationPipeline",
"TranslationPipeline",
"VideoClassificationPipeline",
"VisualQuestionAnsweringPipeline",
"ZeroShotAudioClassificationPipeline",
"ZeroShotClassificationPipeline",
"ZeroShotImageClassificationPipeline",
"ZeroShotObjectDetectionPipeline",
"pipeline",
],
"processing_utils": ["ProcessorMixin"],
"quantizers": [],
"testing_utils": [],
"tokenization_utils": ["PreTrainedTokenizer"],
"tokenization_utils_base": [
"AddedToken",
"BatchEncoding",
"CharSpan",
"PreTrainedTokenizerBase",
"SpecialTokensMixin",
"TokenSpan",
],
"tools": [
"Agent",
"AzureOpenAiAgent",
"HfAgent",
"LocalAgent",
"OpenAiAgent",
"PipelineTool",
"RemoteTool",
"Tool",
"launch_gradio_demo",
"load_tool",
],
"trainer_callback": [
"DefaultFlowCallback",
"EarlyStoppingCallback",
"PrinterCallback",
"ProgressCallback",
"TrainerCallback",
"TrainerControl",
"TrainerState",
],
"trainer_utils": [
"EvalPrediction",
"IntervalStrategy",
"SchedulerType",
"enable_full_determinism",
"set_seed",
],
"training_args": ["TrainingArguments"],
"training_args_seq2seq": ["Seq2SeqTrainingArguments"],
"training_args_tf": ["TFTrainingArguments"],
"utils": [
"CONFIG_NAME",
"MODEL_CARD_NAME",
"PYTORCH_PRETRAINED_BERT_CACHE",
"PYTORCH_TRANSFORMERS_CACHE",
"SPIECE_UNDERLINE",
"TF2_WEIGHTS_NAME",
"TF_WEIGHTS_NAME",
"TRANSFORMERS_CACHE",
"WEIGHTS_NAME",
"TensorType",
"add_end_docstrings",
"add_start_docstrings",
"is_apex_available",
"is_av_available",
"is_bitsandbytes_available",
"is_datasets_available",
"is_decord_available",
"is_faiss_available",
"is_flax_available",
"is_keras_nlp_available",
"is_phonemizer_available",
"is_psutil_available",
"is_py3nvml_available",
"is_pyctcdecode_available",
"is_sacremoses_available",
"is_safetensors_available",
"is_scipy_available",
"is_sentencepiece_available",
"is_sklearn_available",
"is_speech_available",
"is_tensorflow_text_available",
"is_tf_available",
"is_timm_available",
"is_tokenizers_available",
"is_torch_available",
"is_torch_mlu_available",
"is_torch_neuroncore_available",
"is_torch_npu_available",
"is_torch_tpu_available",
"is_torchvision_available",
"is_torch_xla_available",
"is_torch_xpu_available",
"is_vision_available",
"logging",
],
"utils.quantization_config": [
"AqlmConfig",
"AwqConfig",
"BitsAndBytesConfig",
"EetqConfig",
"GPTQConfig",
"HqqConfig",
"QuantoConfig",
],
}
# sentencepiece-backed objects
try:
if not is_sentencepiece_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_sentencepiece_objects
_import_structure["utils.dummy_sentencepiece_objects"] = [
name for name in dir(dummy_sentencepiece_objects) if not name.startswith("_")
]
else:
_import_structure["models.albert"].append("AlbertTokenizer")
_import_structure["models.barthez"].append("BarthezTokenizer")
_import_structure["models.bartpho"].append("BartphoTokenizer")
_import_structure["models.bert_generation"].append("BertGenerationTokenizer")
_import_structure["models.big_bird"].append("BigBirdTokenizer")
_import_structure["models.camembert"].append("CamembertTokenizer")
_import_structure["models.code_llama"].append("CodeLlamaTokenizer")
_import_structure["models.cpm"].append("CpmTokenizer")
_import_structure["models.deberta_v2"].append("DebertaV2Tokenizer")
_import_structure["models.ernie_m"].append("ErnieMTokenizer")
_import_structure["models.fnet"].append("FNetTokenizer")
_import_structure["models.gemma"].append("GemmaTokenizer")
_import_structure["models.gpt_sw3"].append("GPTSw3Tokenizer")
_import_structure["models.layoutxlm"].append("LayoutXLMTokenizer")
_import_structure["models.llama"].append("LlamaTokenizer")
_import_structure["models.m2m_100"].append("M2M100Tokenizer")
_import_structure["models.marian"].append("MarianTokenizer")
_import_structure["models.mbart"].append("MBartTokenizer")
_import_structure["models.mbart50"].append("MBart50Tokenizer")
_import_structure["models.mluke"].append("MLukeTokenizer")
_import_structure["models.mt5"].append("MT5Tokenizer")
_import_structure["models.nllb"].append("NllbTokenizer")
_import_structure["models.pegasus"].append("PegasusTokenizer")
_import_structure["models.plbart"].append("PLBartTokenizer")
_import_structure["models.reformer"].append("ReformerTokenizer")
_import_structure["models.rembert"].append("RemBertTokenizer")
_import_structure["models.seamless_m4t"].append("SeamlessM4TTokenizer")
_import_structure["models.siglip"].append("SiglipTokenizer")
_import_structure["models.speech_to_text"].append("Speech2TextTokenizer")
_import_structure["models.speecht5"].append("SpeechT5Tokenizer")
_import_structure["models.t5"].append("T5Tokenizer")
_import_structure["models.udop"].append("UdopTokenizer")
_import_structure["models.xglm"].append("XGLMTokenizer")
_import_structure["models.xlm_prophetnet"].append("XLMProphetNetTokenizer")
_import_structure["models.xlm_roberta"].append("XLMRobertaTokenizer")
_import_structure["models.xlnet"].append("XLNetTokenizer")
# tokenizers-backed objects
try:
if not is_tokenizers_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_tokenizers_objects
_import_structure["utils.dummy_tokenizers_objects"] = [
name for name in dir(dummy_tokenizers_objects) if not name.startswith("_")
]
else:
# Fast tokenizers structure
_import_structure["models.albert"].append("AlbertTokenizerFast")
_import_structure["models.bart"].append("BartTokenizerFast")
_import_structure["models.barthez"].append("BarthezTokenizerFast")
_import_structure["models.bert"].append("BertTokenizerFast")
_import_structure["models.big_bird"].append("BigBirdTokenizerFast")
_import_structure["models.blenderbot"].append("BlenderbotTokenizerFast")
_import_structure["models.blenderbot_small"].append("BlenderbotSmallTokenizerFast")
_import_structure["models.bloom"].append("BloomTokenizerFast")
_import_structure["models.camembert"].append("CamembertTokenizerFast")
_import_structure["models.clip"].append("CLIPTokenizerFast")
_import_structure["models.code_llama"].append("CodeLlamaTokenizerFast")
_import_structure["models.codegen"].append("CodeGenTokenizerFast")
_import_structure["models.cohere"].append("CohereTokenizerFast")
_import_structure["models.convbert"].append("ConvBertTokenizerFast")
_import_structure["models.cpm"].append("CpmTokenizerFast")
_import_structure["models.deberta"].append("DebertaTokenizerFast")
_import_structure["models.deberta_v2"].append("DebertaV2TokenizerFast")
_import_structure["models.deprecated.retribert"].append("RetriBertTokenizerFast")
_import_structure["models.distilbert"].append("DistilBertTokenizerFast")
_import_structure["models.dpr"].extend(
[
"DPRContextEncoderTokenizerFast",
"DPRQuestionEncoderTokenizerFast",
"DPRReaderTokenizerFast",
]
)
_import_structure["models.electra"].append("ElectraTokenizerFast")
_import_structure["models.fnet"].append("FNetTokenizerFast")
_import_structure["models.funnel"].append("FunnelTokenizerFast")
_import_structure["models.gemma"].append("GemmaTokenizerFast")
_import_structure["models.gpt2"].append("GPT2TokenizerFast")
_import_structure["models.gpt_neox"].append("GPTNeoXTokenizerFast")
_import_structure["models.gpt_neox_japanese"].append("GPTNeoXJapaneseTokenizer")
_import_structure["models.herbert"].append("HerbertTokenizerFast")
_import_structure["models.layoutlm"].append("LayoutLMTokenizerFast")
_import_structure["models.layoutlmv2"].append("LayoutLMv2TokenizerFast")
_import_structure["models.layoutlmv3"].append("LayoutLMv3TokenizerFast")
_import_structure["models.layoutxlm"].append("LayoutXLMTokenizerFast")
_import_structure["models.led"].append("LEDTokenizerFast")
_import_structure["models.llama"].append("LlamaTokenizerFast")
_import_structure["models.longformer"].append("LongformerTokenizerFast")
_import_structure["models.lxmert"].append("LxmertTokenizerFast")
_import_structure["models.markuplm"].append("MarkupLMTokenizerFast")
_import_structure["models.mbart"].append("MBartTokenizerFast")
_import_structure["models.mbart50"].append("MBart50TokenizerFast")
_import_structure["models.mobilebert"].append("MobileBertTokenizerFast")
_import_structure["models.mpnet"].append("MPNetTokenizerFast")
_import_structure["models.mt5"].append("MT5TokenizerFast")
_import_structure["models.mvp"].append("MvpTokenizerFast")
_import_structure["models.nllb"].append("NllbTokenizerFast")
_import_structure["models.nougat"].append("NougatTokenizerFast")
_import_structure["models.openai"].append("OpenAIGPTTokenizerFast")
_import_structure["models.pegasus"].append("PegasusTokenizerFast")
_import_structure["models.qwen2"].append("Qwen2TokenizerFast")
_import_structure["models.realm"].append("RealmTokenizerFast")
_import_structure["models.reformer"].append("ReformerTokenizerFast")
_import_structure["models.rembert"].append("RemBertTokenizerFast")
_import_structure["models.roberta"].append("RobertaTokenizerFast")
_import_structure["models.roformer"].append("RoFormerTokenizerFast")
_import_structure["models.seamless_m4t"].append("SeamlessM4TTokenizerFast")
_import_structure["models.splinter"].append("SplinterTokenizerFast")
_import_structure["models.squeezebert"].append("SqueezeBertTokenizerFast")
_import_structure["models.t5"].append("T5TokenizerFast")
_import_structure["models.udop"].append("UdopTokenizerFast")
_import_structure["models.whisper"].append("WhisperTokenizerFast")
_import_structure["models.xglm"].append("XGLMTokenizerFast")
_import_structure["models.xlm_roberta"].append("XLMRobertaTokenizerFast")
_import_structure["models.xlnet"].append("XLNetTokenizerFast")
_import_structure["tokenization_utils_fast"] = ["PreTrainedTokenizerFast"]
try:
if not (is_sentencepiece_available() and is_tokenizers_available()):
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_sentencepiece_and_tokenizers_objects
_import_structure["utils.dummy_sentencepiece_and_tokenizers_objects"] = [
name for name in dir(dummy_sentencepiece_and_tokenizers_objects) if not name.startswith("_")
]
else:
_import_structure["convert_slow_tokenizer"] = [
"SLOW_TO_FAST_CONVERTERS",
"convert_slow_tokenizer",
]
# Tensorflow-text-specific objects
try:
if not is_tensorflow_text_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_tensorflow_text_objects
_import_structure["utils.dummy_tensorflow_text_objects"] = [
name for name in dir(dummy_tensorflow_text_objects) if not name.startswith("_")
]
else:
_import_structure["models.bert"].append("TFBertTokenizer")
# keras-nlp-specific objects
try:
if not is_keras_nlp_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_keras_nlp_objects
_import_structure["utils.dummy_keras_nlp_objects"] = [
name for name in dir(dummy_keras_nlp_objects) if not name.startswith("_")
]
else:
_import_structure["models.gpt2"].append("TFGPT2Tokenizer")
# Vision-specific objects
try:
if not is_vision_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_vision_objects
_import_structure["utils.dummy_vision_objects"] = [
name for name in dir(dummy_vision_objects) if not name.startswith("_")
]
else:
_import_structure["image_processing_utils"] = ["ImageProcessingMixin"]
_import_structure["image_utils"] = ["ImageFeatureExtractionMixin"]
_import_structure["models.beit"].extend(["BeitFeatureExtractor", "BeitImageProcessor"])
_import_structure["models.bit"].extend(["BitImageProcessor"])
_import_structure["models.blip"].extend(["BlipImageProcessor"])
_import_structure["models.bridgetower"].append("BridgeTowerImageProcessor")
_import_structure["models.chinese_clip"].extend(["ChineseCLIPFeatureExtractor", "ChineseCLIPImageProcessor"])
_import_structure["models.clip"].extend(["CLIPFeatureExtractor", "CLIPImageProcessor"])
_import_structure["models.conditional_detr"].extend(
["ConditionalDetrFeatureExtractor", "ConditionalDetrImageProcessor"]
)
_import_structure["models.convnext"].extend(["ConvNextFeatureExtractor", "ConvNextImageProcessor"])
_import_structure["models.deformable_detr"].extend(
["DeformableDetrFeatureExtractor", "DeformableDetrImageProcessor"]
)
_import_structure["models.deit"].extend(["DeiTFeatureExtractor", "DeiTImageProcessor"])
_import_structure["models.deta"].append("DetaImageProcessor")
_import_structure["models.detr"].extend(["DetrFeatureExtractor", "DetrImageProcessor"])
_import_structure["models.donut"].extend(["DonutFeatureExtractor", "DonutImageProcessor"])
_import_structure["models.dpt"].extend(["DPTFeatureExtractor", "DPTImageProcessor"])
_import_structure["models.efficientformer"].append("EfficientFormerImageProcessor")
_import_structure["models.efficientnet"].append("EfficientNetImageProcessor")
_import_structure["models.flava"].extend(["FlavaFeatureExtractor", "FlavaImageProcessor", "FlavaProcessor"])
_import_structure["models.fuyu"].extend(["FuyuImageProcessor", "FuyuProcessor"])
_import_structure["models.glpn"].extend(["GLPNFeatureExtractor", "GLPNImageProcessor"])
_import_structure["models.grounding_dino"].extend(["GroundingDinoImageProcessor"])
_import_structure["models.idefics"].extend(["IdeficsImageProcessor"])
_import_structure["models.idefics2"].extend(["Idefics2ImageProcessor"])
_import_structure["models.imagegpt"].extend(["ImageGPTFeatureExtractor", "ImageGPTImageProcessor"])
_import_structure["models.layoutlmv2"].extend(["LayoutLMv2FeatureExtractor", "LayoutLMv2ImageProcessor"])
_import_structure["models.layoutlmv3"].extend(["LayoutLMv3FeatureExtractor", "LayoutLMv3ImageProcessor"])
_import_structure["models.levit"].extend(["LevitFeatureExtractor", "LevitImageProcessor"])
_import_structure["models.llava_next"].append("LlavaNextImageProcessor")
_import_structure["models.mask2former"].append("Mask2FormerImageProcessor")
_import_structure["models.maskformer"].extend(["MaskFormerFeatureExtractor", "MaskFormerImageProcessor"])
_import_structure["models.mobilenet_v1"].extend(["MobileNetV1FeatureExtractor", "MobileNetV1ImageProcessor"])
_import_structure["models.mobilenet_v2"].extend(["MobileNetV2FeatureExtractor", "MobileNetV2ImageProcessor"])
_import_structure["models.mobilevit"].extend(["MobileViTFeatureExtractor", "MobileViTImageProcessor"])
_import_structure["models.nougat"].append("NougatImageProcessor")
_import_structure["models.oneformer"].extend(["OneFormerImageProcessor"])
_import_structure["models.owlv2"].append("Owlv2ImageProcessor")
_import_structure["models.owlvit"].extend(["OwlViTFeatureExtractor", "OwlViTImageProcessor"])
_import_structure["models.perceiver"].extend(["PerceiverFeatureExtractor", "PerceiverImageProcessor"])
_import_structure["models.pix2struct"].extend(["Pix2StructImageProcessor"])
_import_structure["models.poolformer"].extend(["PoolFormerFeatureExtractor", "PoolFormerImageProcessor"])
_import_structure["models.pvt"].extend(["PvtImageProcessor"])
_import_structure["models.sam"].extend(["SamImageProcessor"])
_import_structure["models.segformer"].extend(["SegformerFeatureExtractor", "SegformerImageProcessor"])
_import_structure["models.seggpt"].extend(["SegGptImageProcessor"])
_import_structure["models.siglip"].append("SiglipImageProcessor")
_import_structure["models.superpoint"].extend(["SuperPointImageProcessor"])
_import_structure["models.swin2sr"].append("Swin2SRImageProcessor")
_import_structure["models.tvlt"].append("TvltImageProcessor")
_import_structure["models.tvp"].append("TvpImageProcessor")
_import_structure["models.videomae"].extend(["VideoMAEFeatureExtractor", "VideoMAEImageProcessor"])
_import_structure["models.vilt"].extend(["ViltFeatureExtractor", "ViltImageProcessor", "ViltProcessor"])
_import_structure["models.vit"].extend(["ViTFeatureExtractor", "ViTImageProcessor"])
_import_structure["models.vit_hybrid"].extend(["ViTHybridImageProcessor"])
_import_structure["models.vitmatte"].append("VitMatteImageProcessor")
_import_structure["models.vivit"].append("VivitImageProcessor")
_import_structure["models.yolos"].extend(["YolosFeatureExtractor", "YolosImageProcessor"])
# PyTorch-backed objects
try:
if not is_torch_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_pt_objects
_import_structure["utils.dummy_pt_objects"] = [name for name in dir(dummy_pt_objects) if not name.startswith("_")]
else:
_import_structure["activations"] = []
_import_structure["benchmark.benchmark"] = ["PyTorchBenchmark"]
_import_structure["benchmark.benchmark_args"] = ["PyTorchBenchmarkArguments"]
_import_structure["cache_utils"] = ["Cache", "DynamicCache", "SinkCache", "StaticCache"]
_import_structure["data.datasets"] = [
"GlueDataset",
"GlueDataTrainingArguments",
"LineByLineTextDataset",
"LineByLineWithRefDataset",
"LineByLineWithSOPTextDataset",
"SquadDataset",
"SquadDataTrainingArguments",
"TextDataset",
"TextDatasetForNextSentencePrediction",
]
_import_structure["generation"].extend(
[
"AlternatingCodebooksLogitsProcessor",
"BeamScorer",
"BeamSearchScorer",
"ClassifierFreeGuidanceLogitsProcessor",
"ConstrainedBeamSearchScorer",
"Constraint",
"ConstraintListState",
"DisjunctiveConstraint",
"EncoderNoRepeatNGramLogitsProcessor",
"EncoderRepetitionPenaltyLogitsProcessor",
"EosTokenCriteria",
"EpsilonLogitsWarper",
"EtaLogitsWarper",
"ExponentialDecayLengthPenalty",
"ForcedBOSTokenLogitsProcessor",
"ForcedEOSTokenLogitsProcessor",
"ForceTokensLogitsProcessor",
"GenerationMixin",
"HammingDiversityLogitsProcessor",
"InfNanRemoveLogitsProcessor",
"LogitNormalization",
"LogitsProcessor",
"LogitsProcessorList",
"LogitsWarper",
"MaxLengthCriteria",
"MaxTimeCriteria",
"MinLengthLogitsProcessor",
"MinNewTokensLengthLogitsProcessor",
"NoBadWordsLogitsProcessor",
"NoRepeatNGramLogitsProcessor",
"PhrasalConstraint",
"PrefixConstrainedLogitsProcessor",
"RepetitionPenaltyLogitsProcessor",
"SequenceBiasLogitsProcessor",
"StoppingCriteria",
"StoppingCriteriaList",
"StopStringCriteria",
"SuppressTokensAtBeginLogitsProcessor",
"SuppressTokensLogitsProcessor",
"TemperatureLogitsWarper",
"TopKLogitsWarper",
"TopPLogitsWarper",
"TypicalLogitsWarper",
"UnbatchedClassifierFreeGuidanceLogitsProcessor",
"WhisperTimeStampLogitsProcessor",
]
)
_import_structure["modeling_outputs"] = []
_import_structure["modeling_utils"] = ["PreTrainedModel"]
# PyTorch models structure
_import_structure["models.albert"].extend(
[
"ALBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"AlbertForMaskedLM",
"AlbertForMultipleChoice",
"AlbertForPreTraining",
"AlbertForQuestionAnswering",
"AlbertForSequenceClassification",
"AlbertForTokenClassification",
"AlbertModel",
"AlbertPreTrainedModel",
"load_tf_weights_in_albert",
]
)
_import_structure["models.align"].extend(
[
"ALIGN_PRETRAINED_MODEL_ARCHIVE_LIST",
"AlignModel",
"AlignPreTrainedModel",
"AlignTextModel",
"AlignVisionModel",
]
)
_import_structure["models.altclip"].extend(
[
"ALTCLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"AltCLIPModel",
"AltCLIPPreTrainedModel",
"AltCLIPTextModel",
"AltCLIPVisionModel",
]
)
_import_structure["models.audio_spectrogram_transformer"].extend(
[
"AUDIO_SPECTROGRAM_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"ASTForAudioClassification",
"ASTModel",
"ASTPreTrainedModel",
]
)
_import_structure["models.auto"].extend(
[
"MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING",
"MODEL_FOR_AUDIO_FRAME_CLASSIFICATION_MAPPING",
"MODEL_FOR_AUDIO_XVECTOR_MAPPING",
"MODEL_FOR_BACKBONE_MAPPING",
"MODEL_FOR_CAUSAL_IMAGE_MODELING_MAPPING",
"MODEL_FOR_CAUSAL_LM_MAPPING",
"MODEL_FOR_CTC_MAPPING",
"MODEL_FOR_DEPTH_ESTIMATION_MAPPING",
"MODEL_FOR_DOCUMENT_QUESTION_ANSWERING_MAPPING",
"MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING",
"MODEL_FOR_IMAGE_MAPPING",
"MODEL_FOR_IMAGE_SEGMENTATION_MAPPING",
"MODEL_FOR_IMAGE_TO_IMAGE_MAPPING",
"MODEL_FOR_INSTANCE_SEGMENTATION_MAPPING",
"MODEL_FOR_KEYPOINT_DETECTION_MAPPING",
"MODEL_FOR_MASKED_IMAGE_MODELING_MAPPING",
"MODEL_FOR_MASKED_LM_MAPPING",
"MODEL_FOR_MASK_GENERATION_MAPPING",
"MODEL_FOR_MULTIPLE_CHOICE_MAPPING",
"MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING",
"MODEL_FOR_OBJECT_DETECTION_MAPPING",
"MODEL_FOR_PRETRAINING_MAPPING",
"MODEL_FOR_QUESTION_ANSWERING_MAPPING",
"MODEL_FOR_SEMANTIC_SEGMENTATION_MAPPING",
"MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING",
"MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING",
"MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING",
"MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING",
"MODEL_FOR_TEXT_ENCODING_MAPPING",
"MODEL_FOR_TEXT_TO_SPECTROGRAM_MAPPING",
"MODEL_FOR_TEXT_TO_WAVEFORM_MAPPING",
"MODEL_FOR_TIME_SERIES_CLASSIFICATION_MAPPING",
"MODEL_FOR_TIME_SERIES_REGRESSION_MAPPING",
"MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING",
"MODEL_FOR_UNIVERSAL_SEGMENTATION_MAPPING",
"MODEL_FOR_VIDEO_CLASSIFICATION_MAPPING",
"MODEL_FOR_VISION_2_SEQ_MAPPING",
"MODEL_FOR_VISUAL_QUESTION_ANSWERING_MAPPING",
"MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING",
"MODEL_FOR_ZERO_SHOT_OBJECT_DETECTION_MAPPING",
"MODEL_MAPPING",
"MODEL_WITH_LM_HEAD_MAPPING",
"AutoBackbone",
"AutoModel",
"AutoModelForAudioClassification",
"AutoModelForAudioFrameClassification",
"AutoModelForAudioXVector",
"AutoModelForCausalLM",
"AutoModelForCTC",
"AutoModelForDepthEstimation",
"AutoModelForDocumentQuestionAnswering",
"AutoModelForImageClassification",
"AutoModelForImageSegmentation",
"AutoModelForImageToImage",
"AutoModelForInstanceSegmentation",
"AutoModelForKeypointDetection",
"AutoModelForMaskedImageModeling",
"AutoModelForMaskedLM",
"AutoModelForMaskGeneration",
"AutoModelForMultipleChoice",
"AutoModelForNextSentencePrediction",
"AutoModelForObjectDetection",
"AutoModelForPreTraining",
"AutoModelForQuestionAnswering",
"AutoModelForSemanticSegmentation",
"AutoModelForSeq2SeqLM",
"AutoModelForSequenceClassification",
"AutoModelForSpeechSeq2Seq",
"AutoModelForTableQuestionAnswering",
"AutoModelForTextEncoding",
"AutoModelForTextToSpectrogram",
"AutoModelForTextToWaveform",
"AutoModelForTokenClassification",
"AutoModelForUniversalSegmentation",
"AutoModelForVideoClassification",
"AutoModelForVision2Seq",
"AutoModelForVisualQuestionAnswering",
"AutoModelForZeroShotImageClassification",
"AutoModelForZeroShotObjectDetection",
"AutoModelWithLMHead",
]
)
_import_structure["models.autoformer"].extend(
[
"AUTOFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"AutoformerForPrediction",
"AutoformerModel",
"AutoformerPreTrainedModel",
]
)
_import_structure["models.bark"].extend(
[
"BARK_PRETRAINED_MODEL_ARCHIVE_LIST",
"BarkCausalModel",
"BarkCoarseModel",
"BarkFineModel",
"BarkModel",
"BarkPreTrainedModel",
"BarkSemanticModel",
]
)
_import_structure["models.bart"].extend(
[
"BART_PRETRAINED_MODEL_ARCHIVE_LIST",
"BartForCausalLM",
"BartForConditionalGeneration",
"BartForQuestionAnswering",
"BartForSequenceClassification",
"BartModel",
"BartPretrainedModel",
"BartPreTrainedModel",
"PretrainedBartModel",
]
)
_import_structure["models.beit"].extend(
[
"BEIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"BeitBackbone",
"BeitForImageClassification",
"BeitForMaskedImageModeling",
"BeitForSemanticSegmentation",
"BeitModel",
"BeitPreTrainedModel",
]
)
_import_structure["models.bert"].extend(
[
"BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"BertForMaskedLM",
"BertForMultipleChoice",
"BertForNextSentencePrediction",
"BertForPreTraining",
"BertForQuestionAnswering",
"BertForSequenceClassification",
"BertForTokenClassification",
"BertLayer",
"BertLMHeadModel",
"BertModel",
"BertPreTrainedModel",
"load_tf_weights_in_bert",
]
)
_import_structure["models.bert_generation"].extend(
[
"BertGenerationDecoder",
"BertGenerationEncoder",
"BertGenerationPreTrainedModel",
"load_tf_weights_in_bert_generation",
]
)
_import_structure["models.big_bird"].extend(
[
"BIG_BIRD_PRETRAINED_MODEL_ARCHIVE_LIST",
"BigBirdForCausalLM",
"BigBirdForMaskedLM",
"BigBirdForMultipleChoice",
"BigBirdForPreTraining",
"BigBirdForQuestionAnswering",
"BigBirdForSequenceClassification",
"BigBirdForTokenClassification",
"BigBirdLayer",
"BigBirdModel",
"BigBirdPreTrainedModel",
"load_tf_weights_in_big_bird",
]
)
_import_structure["models.bigbird_pegasus"].extend(
[
"BIGBIRD_PEGASUS_PRETRAINED_MODEL_ARCHIVE_LIST",
"BigBirdPegasusForCausalLM",
"BigBirdPegasusForConditionalGeneration",
"BigBirdPegasusForQuestionAnswering",
"BigBirdPegasusForSequenceClassification",
"BigBirdPegasusModel",
"BigBirdPegasusPreTrainedModel",
]
)
_import_structure["models.biogpt"].extend(
[
"BIOGPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"BioGptForCausalLM",
"BioGptForSequenceClassification",
"BioGptForTokenClassification",
"BioGptModel",
"BioGptPreTrainedModel",
]
)
_import_structure["models.bit"].extend(
[
"BIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"BitBackbone",
"BitForImageClassification",
"BitModel",
"BitPreTrainedModel",
]
)
_import_structure["models.blenderbot"].extend(
[
"BLENDERBOT_PRETRAINED_MODEL_ARCHIVE_LIST",
"BlenderbotForCausalLM",
"BlenderbotForConditionalGeneration",
"BlenderbotModel",
"BlenderbotPreTrainedModel",
]
)
_import_structure["models.blenderbot_small"].extend(
[
"BLENDERBOT_SMALL_PRETRAINED_MODEL_ARCHIVE_LIST",
"BlenderbotSmallForCausalLM",
"BlenderbotSmallForConditionalGeneration",
"BlenderbotSmallModel",
"BlenderbotSmallPreTrainedModel",
]
)
_import_structure["models.blip"].extend(
[
"BLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"BlipForConditionalGeneration",
"BlipForImageTextRetrieval",
"BlipForQuestionAnswering",
"BlipModel",
"BlipPreTrainedModel",
"BlipTextModel",
"BlipVisionModel",
]
)
_import_structure["models.blip_2"].extend(
[
"BLIP_2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Blip2ForConditionalGeneration",
"Blip2Model",
"Blip2PreTrainedModel",
"Blip2QFormerModel",
"Blip2VisionModel",
]
)
_import_structure["models.bloom"].extend(
[
"BLOOM_PRETRAINED_MODEL_ARCHIVE_LIST",
"BloomForCausalLM",
"BloomForQuestionAnswering",
"BloomForSequenceClassification",
"BloomForTokenClassification",
"BloomModel",
"BloomPreTrainedModel",
]
)
_import_structure["models.bridgetower"].extend(
[
"BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST",
"BridgeTowerForContrastiveLearning",
"BridgeTowerForImageAndTextRetrieval",
"BridgeTowerForMaskedLM",
"BridgeTowerModel",
"BridgeTowerPreTrainedModel",
]
)
_import_structure["models.bros"].extend(
[
"BROS_PRETRAINED_MODEL_ARCHIVE_LIST",
"BrosForTokenClassification",
"BrosModel",
"BrosPreTrainedModel",
"BrosProcessor",
"BrosSpadeEEForTokenClassification",
"BrosSpadeELForTokenClassification",
]
)
_import_structure["models.camembert"].extend(
[
"CAMEMBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"CamembertForCausalLM",
"CamembertForMaskedLM",
"CamembertForMultipleChoice",
"CamembertForQuestionAnswering",
"CamembertForSequenceClassification",
"CamembertForTokenClassification",
"CamembertModel",
"CamembertPreTrainedModel",
]
)
_import_structure["models.canine"].extend(
[
"CANINE_PRETRAINED_MODEL_ARCHIVE_LIST",
"CanineForMultipleChoice",
"CanineForQuestionAnswering",
"CanineForSequenceClassification",
"CanineForTokenClassification",
"CanineLayer",
"CanineModel",
"CaninePreTrainedModel",
"load_tf_weights_in_canine",
]
)
_import_structure["models.chinese_clip"].extend(
[
"CHINESE_CLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"ChineseCLIPModel",
"ChineseCLIPPreTrainedModel",
"ChineseCLIPTextModel",
"ChineseCLIPVisionModel",
]
)
_import_structure["models.clap"].extend(
[
"CLAP_PRETRAINED_MODEL_ARCHIVE_LIST",
"ClapAudioModel",
"ClapAudioModelWithProjection",
"ClapFeatureExtractor",
"ClapModel",
"ClapPreTrainedModel",
"ClapTextModel",
"ClapTextModelWithProjection",
]
)
_import_structure["models.clip"].extend(
[
"CLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"CLIPForImageClassification",
"CLIPModel",
"CLIPPreTrainedModel",
"CLIPTextModel",
"CLIPTextModelWithProjection",
"CLIPVisionModel",
"CLIPVisionModelWithProjection",
]
)
_import_structure["models.clipseg"].extend(
[
"CLIPSEG_PRETRAINED_MODEL_ARCHIVE_LIST",
"CLIPSegForImageSegmentation",
"CLIPSegModel",
"CLIPSegPreTrainedModel",
"CLIPSegTextModel",
"CLIPSegVisionModel",
]
)
_import_structure["models.clvp"].extend(
[
"CLVP_PRETRAINED_MODEL_ARCHIVE_LIST",
"ClvpDecoder",
"ClvpEncoder",
"ClvpForCausalLM",
"ClvpModel",
"ClvpModelForConditionalGeneration",
"ClvpPreTrainedModel",
]
)
_import_structure["models.codegen"].extend(
[
"CODEGEN_PRETRAINED_MODEL_ARCHIVE_LIST",
"CodeGenForCausalLM",
"CodeGenModel",
"CodeGenPreTrainedModel",
]
)
_import_structure["models.cohere"].extend(["CohereForCausalLM", "CohereModel", "CoherePreTrainedModel"])
_import_structure["models.conditional_detr"].extend(
[
"CONDITIONAL_DETR_PRETRAINED_MODEL_ARCHIVE_LIST",
"ConditionalDetrForObjectDetection",
"ConditionalDetrForSegmentation",
"ConditionalDetrModel",
"ConditionalDetrPreTrainedModel",
]
)
_import_structure["models.convbert"].extend(
[
"CONVBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"ConvBertForMaskedLM",
"ConvBertForMultipleChoice",
"ConvBertForQuestionAnswering",
"ConvBertForSequenceClassification",
"ConvBertForTokenClassification",
"ConvBertLayer",
"ConvBertModel",
"ConvBertPreTrainedModel",
"load_tf_weights_in_convbert",
]
)
_import_structure["models.convnext"].extend(
[
"CONVNEXT_PRETRAINED_MODEL_ARCHIVE_LIST",
"ConvNextBackbone",
"ConvNextForImageClassification",
"ConvNextModel",
"ConvNextPreTrainedModel",
]
)
_import_structure["models.convnextv2"].extend(
[
"CONVNEXTV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"ConvNextV2Backbone",
"ConvNextV2ForImageClassification",
"ConvNextV2Model",
"ConvNextV2PreTrainedModel",
]
)
_import_structure["models.cpmant"].extend(
[
"CPMANT_PRETRAINED_MODEL_ARCHIVE_LIST",
"CpmAntForCausalLM",
"CpmAntModel",
"CpmAntPreTrainedModel",
]
)
_import_structure["models.ctrl"].extend(
[
"CTRL_PRETRAINED_MODEL_ARCHIVE_LIST",
"CTRLForSequenceClassification",
"CTRLLMHeadModel",
"CTRLModel",
"CTRLPreTrainedModel",
]
)
_import_structure["models.cvt"].extend(
[
"CVT_PRETRAINED_MODEL_ARCHIVE_LIST",
"CvtForImageClassification",
"CvtModel",
"CvtPreTrainedModel",
]
)
_import_structure["models.data2vec"].extend(
[
"DATA2VEC_AUDIO_PRETRAINED_MODEL_ARCHIVE_LIST",
"DATA2VEC_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST",
"DATA2VEC_VISION_PRETRAINED_MODEL_ARCHIVE_LIST",
"Data2VecAudioForAudioFrameClassification",
"Data2VecAudioForCTC",
"Data2VecAudioForSequenceClassification",
"Data2VecAudioForXVector",
"Data2VecAudioModel",
"Data2VecAudioPreTrainedModel",
"Data2VecTextForCausalLM",
"Data2VecTextForMaskedLM",
"Data2VecTextForMultipleChoice",
"Data2VecTextForQuestionAnswering",
"Data2VecTextForSequenceClassification",
"Data2VecTextForTokenClassification",
"Data2VecTextModel",
"Data2VecTextPreTrainedModel",
"Data2VecVisionForImageClassification",
"Data2VecVisionForSemanticSegmentation",
"Data2VecVisionModel",
"Data2VecVisionPreTrainedModel",
]
)
_import_structure["models.dbrx"].extend(
[
"DbrxForCausalLM",
"DbrxModel",
"DbrxPreTrainedModel",
]
)
_import_structure["models.deberta"].extend(
[
"DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"DebertaForMaskedLM",
"DebertaForQuestionAnswering",
"DebertaForSequenceClassification",
"DebertaForTokenClassification",
"DebertaModel",
"DebertaPreTrainedModel",
]
)
_import_structure["models.deberta_v2"].extend(
[
"DEBERTA_V2_PRETRAINED_MODEL_ARCHIVE_LIST",
"DebertaV2ForMaskedLM",
"DebertaV2ForMultipleChoice",
"DebertaV2ForQuestionAnswering",
"DebertaV2ForSequenceClassification",
"DebertaV2ForTokenClassification",
"DebertaV2Model",
"DebertaV2PreTrainedModel",
]
)
_import_structure["models.decision_transformer"].extend(
[
"DECISION_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"DecisionTransformerGPT2Model",
"DecisionTransformerGPT2PreTrainedModel",
"DecisionTransformerModel",
"DecisionTransformerPreTrainedModel",
]
)
_import_structure["models.deformable_detr"].extend(
[
"DEFORMABLE_DETR_PRETRAINED_MODEL_ARCHIVE_LIST",
"DeformableDetrForObjectDetection",
"DeformableDetrModel",
"DeformableDetrPreTrainedModel",
]
)
_import_structure["models.deit"].extend(
[
"DEIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"DeiTForImageClassification",
"DeiTForImageClassificationWithTeacher",
"DeiTForMaskedImageModeling",
"DeiTModel",
"DeiTPreTrainedModel",
]
)
_import_structure["models.deprecated.mctct"].extend(
[
"MCTCT_PRETRAINED_MODEL_ARCHIVE_LIST",
"MCTCTForCTC",
"MCTCTModel",
"MCTCTPreTrainedModel",
]
)
_import_structure["models.deprecated.mmbt"].extend(["MMBTForClassification", "MMBTModel", "ModalEmbeddings"])
_import_structure["models.deprecated.open_llama"].extend(
[
"OpenLlamaForCausalLM",
"OpenLlamaForSequenceClassification",
"OpenLlamaModel",
"OpenLlamaPreTrainedModel",
]
)
_import_structure["models.deprecated.retribert"].extend(
[
"RETRIBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"RetriBertModel",
"RetriBertPreTrainedModel",
]
)
_import_structure["models.deprecated.trajectory_transformer"].extend(
[
"TRAJECTORY_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TrajectoryTransformerModel",
"TrajectoryTransformerPreTrainedModel",
]
)
_import_structure["models.deprecated.transfo_xl"].extend(
[
"TRANSFO_XL_PRETRAINED_MODEL_ARCHIVE_LIST",
"AdaptiveEmbedding",
"TransfoXLForSequenceClassification",
"TransfoXLLMHeadModel",
"TransfoXLModel",
"TransfoXLPreTrainedModel",
"load_tf_weights_in_transfo_xl",
]
)
_import_structure["models.deprecated.van"].extend(
[
"VAN_PRETRAINED_MODEL_ARCHIVE_LIST",
"VanForImageClassification",
"VanModel",
"VanPreTrainedModel",
]
)
_import_structure["models.depth_anything"].extend(
[
"DEPTH_ANYTHING_PRETRAINED_MODEL_ARCHIVE_LIST",
"DepthAnythingForDepthEstimation",
"DepthAnythingPreTrainedModel",
]
)
_import_structure["models.deta"].extend(
[
"DETA_PRETRAINED_MODEL_ARCHIVE_LIST",
"DetaForObjectDetection",
"DetaModel",
"DetaPreTrainedModel",
]
)
_import_structure["models.detr"].extend(
[
"DETR_PRETRAINED_MODEL_ARCHIVE_LIST",
"DetrForObjectDetection",
"DetrForSegmentation",
"DetrModel",
"DetrPreTrainedModel",
]
)
_import_structure["models.dinat"].extend(
[
"DINAT_PRETRAINED_MODEL_ARCHIVE_LIST",
"DinatBackbone",
"DinatForImageClassification",
"DinatModel",
"DinatPreTrainedModel",
]
)
_import_structure["models.dinov2"].extend(
[
"DINOV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Dinov2Backbone",
"Dinov2ForImageClassification",
"Dinov2Model",
"Dinov2PreTrainedModel",
]
)
_import_structure["models.distilbert"].extend(
[
"DISTILBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"DistilBertForMaskedLM",
"DistilBertForMultipleChoice",
"DistilBertForQuestionAnswering",
"DistilBertForSequenceClassification",
"DistilBertForTokenClassification",
"DistilBertModel",
"DistilBertPreTrainedModel",
]
)
_import_structure["models.donut"].extend(
[
"DONUT_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST",
"DonutSwinModel",
"DonutSwinPreTrainedModel",
]
)
_import_structure["models.dpr"].extend(
[
"DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST",
"DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST",
"DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST",
"DPRContextEncoder",
"DPRPretrainedContextEncoder",
"DPRPreTrainedModel",
"DPRPretrainedQuestionEncoder",
"DPRPretrainedReader",
"DPRQuestionEncoder",
"DPRReader",
]
)
_import_structure["models.dpt"].extend(
[
"DPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"DPTForDepthEstimation",
"DPTForSemanticSegmentation",
"DPTModel",
"DPTPreTrainedModel",
]
)
_import_structure["models.efficientformer"].extend(
[
"EFFICIENTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"EfficientFormerForImageClassification",
"EfficientFormerForImageClassificationWithTeacher",
"EfficientFormerModel",
"EfficientFormerPreTrainedModel",
]
)
_import_structure["models.efficientnet"].extend(
[
"EFFICIENTNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"EfficientNetForImageClassification",
"EfficientNetModel",
"EfficientNetPreTrainedModel",
]
)
_import_structure["models.electra"].extend(
[
"ELECTRA_PRETRAINED_MODEL_ARCHIVE_LIST",
"ElectraForCausalLM",
"ElectraForMaskedLM",
"ElectraForMultipleChoice",
"ElectraForPreTraining",
"ElectraForQuestionAnswering",
"ElectraForSequenceClassification",
"ElectraForTokenClassification",
"ElectraModel",
"ElectraPreTrainedModel",
"load_tf_weights_in_electra",
]
)
_import_structure["models.encodec"].extend(
[
"ENCODEC_PRETRAINED_MODEL_ARCHIVE_LIST",
"EncodecModel",
"EncodecPreTrainedModel",
]
)
_import_structure["models.encoder_decoder"].append("EncoderDecoderModel")
_import_structure["models.ernie"].extend(
[
"ERNIE_PRETRAINED_MODEL_ARCHIVE_LIST",
"ErnieForCausalLM",
"ErnieForMaskedLM",
"ErnieForMultipleChoice",
"ErnieForNextSentencePrediction",
"ErnieForPreTraining",
"ErnieForQuestionAnswering",
"ErnieForSequenceClassification",
"ErnieForTokenClassification",
"ErnieModel",
"ErniePreTrainedModel",
]
)
_import_structure["models.ernie_m"].extend(
[
"ERNIE_M_PRETRAINED_MODEL_ARCHIVE_LIST",
"ErnieMForInformationExtraction",
"ErnieMForMultipleChoice",
"ErnieMForQuestionAnswering",
"ErnieMForSequenceClassification",
"ErnieMForTokenClassification",
"ErnieMModel",
"ErnieMPreTrainedModel",
]
)
_import_structure["models.esm"].extend(
[
"ESM_PRETRAINED_MODEL_ARCHIVE_LIST",
"EsmFoldPreTrainedModel",
"EsmForMaskedLM",
"EsmForProteinFolding",
"EsmForSequenceClassification",
"EsmForTokenClassification",
"EsmModel",
"EsmPreTrainedModel",
]
)
_import_structure["models.falcon"].extend(
[
"FALCON_PRETRAINED_MODEL_ARCHIVE_LIST",
"FalconForCausalLM",
"FalconForQuestionAnswering",
"FalconForSequenceClassification",
"FalconForTokenClassification",
"FalconModel",
"FalconPreTrainedModel",
]
)
_import_structure["models.fastspeech2_conformer"].extend(
[
"FASTSPEECH2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"FastSpeech2ConformerHifiGan",
"FastSpeech2ConformerModel",
"FastSpeech2ConformerPreTrainedModel",
"FastSpeech2ConformerWithHifiGan",
]
)
_import_structure["models.flaubert"].extend(
[
"FLAUBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"FlaubertForMultipleChoice",
"FlaubertForQuestionAnswering",
"FlaubertForQuestionAnsweringSimple",
"FlaubertForSequenceClassification",
"FlaubertForTokenClassification",
"FlaubertModel",
"FlaubertPreTrainedModel",
"FlaubertWithLMHeadModel",
]
)
_import_structure["models.flava"].extend(
[
"FLAVA_PRETRAINED_MODEL_ARCHIVE_LIST",
"FlavaForPreTraining",
"FlavaImageCodebook",
"FlavaImageModel",
"FlavaModel",
"FlavaMultimodalModel",
"FlavaPreTrainedModel",
"FlavaTextModel",
]
)
_import_structure["models.fnet"].extend(
[
"FNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"FNetForMaskedLM",
"FNetForMultipleChoice",
"FNetForNextSentencePrediction",
"FNetForPreTraining",
"FNetForQuestionAnswering",
"FNetForSequenceClassification",
"FNetForTokenClassification",
"FNetLayer",
"FNetModel",
"FNetPreTrainedModel",
]
)
_import_structure["models.focalnet"].extend(
[
"FOCALNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"FocalNetBackbone",
"FocalNetForImageClassification",
"FocalNetForMaskedImageModeling",
"FocalNetModel",
"FocalNetPreTrainedModel",
]
)
_import_structure["models.fsmt"].extend(["FSMTForConditionalGeneration", "FSMTModel", "PretrainedFSMTModel"])
_import_structure["models.funnel"].extend(
[
"FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST",
"FunnelBaseModel",
"FunnelForMaskedLM",
"FunnelForMultipleChoice",
"FunnelForPreTraining",
"FunnelForQuestionAnswering",
"FunnelForSequenceClassification",
"FunnelForTokenClassification",
"FunnelModel",
"FunnelPreTrainedModel",
"load_tf_weights_in_funnel",
]
)
_import_structure["models.fuyu"].extend(["FuyuForCausalLM", "FuyuPreTrainedModel"])
_import_structure["models.gemma"].extend(
[
"GemmaForCausalLM",
"GemmaForSequenceClassification",
"GemmaModel",
"GemmaPreTrainedModel",
]
)
_import_structure["models.git"].extend(
[
"GIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"GitForCausalLM",
"GitModel",
"GitPreTrainedModel",
"GitVisionModel",
]
)
_import_structure["models.glpn"].extend(
[
"GLPN_PRETRAINED_MODEL_ARCHIVE_LIST",
"GLPNForDepthEstimation",
"GLPNModel",
"GLPNPreTrainedModel",
]
)
_import_structure["models.gpt2"].extend(
[
"GPT2_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPT2DoubleHeadsModel",
"GPT2ForQuestionAnswering",
"GPT2ForSequenceClassification",
"GPT2ForTokenClassification",
"GPT2LMHeadModel",
"GPT2Model",
"GPT2PreTrainedModel",
"load_tf_weights_in_gpt2",
]
)
_import_structure["models.gpt_bigcode"].extend(
[
"GPT_BIGCODE_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTBigCodeForCausalLM",
"GPTBigCodeForSequenceClassification",
"GPTBigCodeForTokenClassification",
"GPTBigCodeModel",
"GPTBigCodePreTrainedModel",
]
)
_import_structure["models.gpt_neo"].extend(
[
"GPT_NEO_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTNeoForCausalLM",
"GPTNeoForQuestionAnswering",
"GPTNeoForSequenceClassification",
"GPTNeoForTokenClassification",
"GPTNeoModel",
"GPTNeoPreTrainedModel",
"load_tf_weights_in_gpt_neo",
]
)
_import_structure["models.gpt_neox"].extend(
[
"GPT_NEOX_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTNeoXForCausalLM",
"GPTNeoXForQuestionAnswering",
"GPTNeoXForSequenceClassification",
"GPTNeoXForTokenClassification",
"GPTNeoXLayer",
"GPTNeoXModel",
"GPTNeoXPreTrainedModel",
]
)
_import_structure["models.gpt_neox_japanese"].extend(
[
"GPT_NEOX_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTNeoXJapaneseForCausalLM",
"GPTNeoXJapaneseLayer",
"GPTNeoXJapaneseModel",
"GPTNeoXJapanesePreTrainedModel",
]
)
_import_structure["models.gptj"].extend(
[
"GPTJ_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTJForCausalLM",
"GPTJForQuestionAnswering",
"GPTJForSequenceClassification",
"GPTJModel",
"GPTJPreTrainedModel",
]
)
_import_structure["models.gptsan_japanese"].extend(
[
"GPTSAN_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST",
"GPTSanJapaneseForConditionalGeneration",
"GPTSanJapaneseModel",
"GPTSanJapanesePreTrainedModel",
]
)
_import_structure["models.graphormer"].extend(
[
"GRAPHORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"GraphormerForGraphClassification",
"GraphormerModel",
"GraphormerPreTrainedModel",
]
)
_import_structure["models.grounding_dino"].extend(
[
"GROUNDING_DINO_PRETRAINED_MODEL_ARCHIVE_LIST",
"GroundingDinoForObjectDetection",
"GroundingDinoModel",
"GroundingDinoPreTrainedModel",
]
)
_import_structure["models.groupvit"].extend(
[
"GROUPVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"GroupViTModel",
"GroupViTPreTrainedModel",
"GroupViTTextModel",
"GroupViTVisionModel",
]
)
_import_structure["models.hubert"].extend(
[
"HUBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"HubertForCTC",
"HubertForSequenceClassification",
"HubertModel",
"HubertPreTrainedModel",
]
)
_import_structure["models.ibert"].extend(
[
"IBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"IBertForMaskedLM",
"IBertForMultipleChoice",
"IBertForQuestionAnswering",
"IBertForSequenceClassification",
"IBertForTokenClassification",
"IBertModel",
"IBertPreTrainedModel",
]
)
_import_structure["models.idefics"].extend(
[
"IDEFICS_PRETRAINED_MODEL_ARCHIVE_LIST",
"IdeficsForVisionText2Text",
"IdeficsModel",
"IdeficsPreTrainedModel",
"IdeficsProcessor",
]
)
_import_structure["models.idefics2"].extend(
[
"IDEFICS2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Idefics2ForConditionalGeneration",
"Idefics2Model",
"Idefics2PreTrainedModel",
"Idefics2Processor",
]
)
_import_structure["models.imagegpt"].extend(
[
"IMAGEGPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"ImageGPTForCausalImageModeling",
"ImageGPTForImageClassification",
"ImageGPTModel",
"ImageGPTPreTrainedModel",
"load_tf_weights_in_imagegpt",
]
)
_import_structure["models.informer"].extend(
[
"INFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"InformerForPrediction",
"InformerModel",
"InformerPreTrainedModel",
]
)
_import_structure["models.instructblip"].extend(
[
"INSTRUCTBLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"InstructBlipForConditionalGeneration",
"InstructBlipPreTrainedModel",
"InstructBlipQFormerModel",
"InstructBlipVisionModel",
]
)
_import_structure["models.jamba"].extend(
[
"JambaForCausalLM",
"JambaForSequenceClassification",
"JambaModel",
"JambaPreTrainedModel",
]
)
_import_structure["models.jukebox"].extend(
[
"JUKEBOX_PRETRAINED_MODEL_ARCHIVE_LIST",
"JukeboxModel",
"JukeboxPreTrainedModel",
"JukeboxPrior",
"JukeboxVQVAE",
]
)
_import_structure["models.kosmos2"].extend(
[
"KOSMOS2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Kosmos2ForConditionalGeneration",
"Kosmos2Model",
"Kosmos2PreTrainedModel",
]
)
_import_structure["models.layoutlm"].extend(
[
"LAYOUTLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"LayoutLMForMaskedLM",
"LayoutLMForQuestionAnswering",
"LayoutLMForSequenceClassification",
"LayoutLMForTokenClassification",
"LayoutLMModel",
"LayoutLMPreTrainedModel",
]
)
_import_structure["models.layoutlmv2"].extend(
[
"LAYOUTLMV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"LayoutLMv2ForQuestionAnswering",
"LayoutLMv2ForSequenceClassification",
"LayoutLMv2ForTokenClassification",
"LayoutLMv2Model",
"LayoutLMv2PreTrainedModel",
]
)
_import_structure["models.layoutlmv3"].extend(
[
"LAYOUTLMV3_PRETRAINED_MODEL_ARCHIVE_LIST",
"LayoutLMv3ForQuestionAnswering",
"LayoutLMv3ForSequenceClassification",
"LayoutLMv3ForTokenClassification",
"LayoutLMv3Model",
"LayoutLMv3PreTrainedModel",
]
)
_import_structure["models.led"].extend(
[
"LED_PRETRAINED_MODEL_ARCHIVE_LIST",
"LEDForConditionalGeneration",
"LEDForQuestionAnswering",
"LEDForSequenceClassification",
"LEDModel",
"LEDPreTrainedModel",
]
)
_import_structure["models.levit"].extend(
[
"LEVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"LevitForImageClassification",
"LevitForImageClassificationWithTeacher",
"LevitModel",
"LevitPreTrainedModel",
]
)
_import_structure["models.lilt"].extend(
[
"LILT_PRETRAINED_MODEL_ARCHIVE_LIST",
"LiltForQuestionAnswering",
"LiltForSequenceClassification",
"LiltForTokenClassification",
"LiltModel",
"LiltPreTrainedModel",
]
)
_import_structure["models.llama"].extend(
[
"LlamaForCausalLM",
"LlamaForQuestionAnswering",
"LlamaForSequenceClassification",
"LlamaModel",
"LlamaPreTrainedModel",
]
)
_import_structure["models.llava"].extend(
[
"LLAVA_PRETRAINED_MODEL_ARCHIVE_LIST",
"LlavaForConditionalGeneration",
"LlavaPreTrainedModel",
]
)
_import_structure["models.llava_next"].extend(
[
"LLAVA_NEXT_PRETRAINED_MODEL_ARCHIVE_LIST",
"LlavaNextForConditionalGeneration",
"LlavaNextPreTrainedModel",
]
)
_import_structure["models.longformer"].extend(
[
"LONGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"LongformerForMaskedLM",
"LongformerForMultipleChoice",
"LongformerForQuestionAnswering",
"LongformerForSequenceClassification",
"LongformerForTokenClassification",
"LongformerModel",
"LongformerPreTrainedModel",
"LongformerSelfAttention",
]
)
_import_structure["models.longt5"].extend(
[
"LONGT5_PRETRAINED_MODEL_ARCHIVE_LIST",
"LongT5EncoderModel",
"LongT5ForConditionalGeneration",
"LongT5Model",
"LongT5PreTrainedModel",
]
)
_import_structure["models.luke"].extend(
[
"LUKE_PRETRAINED_MODEL_ARCHIVE_LIST",
"LukeForEntityClassification",
"LukeForEntityPairClassification",
"LukeForEntitySpanClassification",
"LukeForMaskedLM",
"LukeForMultipleChoice",
"LukeForQuestionAnswering",
"LukeForSequenceClassification",
"LukeForTokenClassification",
"LukeModel",
"LukePreTrainedModel",
]
)
_import_structure["models.lxmert"].extend(
[
"LxmertEncoder",
"LxmertForPreTraining",
"LxmertForQuestionAnswering",
"LxmertModel",
"LxmertPreTrainedModel",
"LxmertVisualFeatureEncoder",
"LxmertXLayer",
]
)
_import_structure["models.m2m_100"].extend(
[
"M2M_100_PRETRAINED_MODEL_ARCHIVE_LIST",
"M2M100ForConditionalGeneration",
"M2M100Model",
"M2M100PreTrainedModel",
]
)
_import_structure["models.mamba"].extend(
[
"MAMBA_PRETRAINED_MODEL_ARCHIVE_LIST",
"MambaForCausalLM",
"MambaModel",
"MambaPreTrainedModel",
]
)
_import_structure["models.marian"].extend(["MarianForCausalLM", "MarianModel", "MarianMTModel"])
_import_structure["models.markuplm"].extend(
[
"MARKUPLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"MarkupLMForQuestionAnswering",
"MarkupLMForSequenceClassification",
"MarkupLMForTokenClassification",
"MarkupLMModel",
"MarkupLMPreTrainedModel",
]
)
_import_structure["models.mask2former"].extend(
[
"MASK2FORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"Mask2FormerForUniversalSegmentation",
"Mask2FormerModel",
"Mask2FormerPreTrainedModel",
]
)
_import_structure["models.maskformer"].extend(
[
"MASKFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"MaskFormerForInstanceSegmentation",
"MaskFormerModel",
"MaskFormerPreTrainedModel",
"MaskFormerSwinBackbone",
]
)
_import_structure["models.mbart"].extend(
[
"MBartForCausalLM",
"MBartForConditionalGeneration",
"MBartForQuestionAnswering",
"MBartForSequenceClassification",
"MBartModel",
"MBartPreTrainedModel",
]
)
_import_structure["models.mega"].extend(
[
"MEGA_PRETRAINED_MODEL_ARCHIVE_LIST",
"MegaForCausalLM",
"MegaForMaskedLM",
"MegaForMultipleChoice",
"MegaForQuestionAnswering",
"MegaForSequenceClassification",
"MegaForTokenClassification",
"MegaModel",
"MegaPreTrainedModel",
]
)
_import_structure["models.megatron_bert"].extend(
[
"MEGATRON_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"MegatronBertForCausalLM",
"MegatronBertForMaskedLM",
"MegatronBertForMultipleChoice",
"MegatronBertForNextSentencePrediction",
"MegatronBertForPreTraining",
"MegatronBertForQuestionAnswering",
"MegatronBertForSequenceClassification",
"MegatronBertForTokenClassification",
"MegatronBertModel",
"MegatronBertPreTrainedModel",
]
)
_import_structure["models.mgp_str"].extend(
[
"MGP_STR_PRETRAINED_MODEL_ARCHIVE_LIST",
"MgpstrForSceneTextRecognition",
"MgpstrModel",
"MgpstrPreTrainedModel",
]
)
_import_structure["models.mistral"].extend(
[
"MistralForCausalLM",
"MistralForSequenceClassification",
"MistralModel",
"MistralPreTrainedModel",
]
)
_import_structure["models.mixtral"].extend(
["MixtralForCausalLM", "MixtralForSequenceClassification", "MixtralModel", "MixtralPreTrainedModel"]
)
_import_structure["models.mobilebert"].extend(
[
"MOBILEBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"MobileBertForMaskedLM",
"MobileBertForMultipleChoice",
"MobileBertForNextSentencePrediction",
"MobileBertForPreTraining",
"MobileBertForQuestionAnswering",
"MobileBertForSequenceClassification",
"MobileBertForTokenClassification",
"MobileBertLayer",
"MobileBertModel",
"MobileBertPreTrainedModel",
"load_tf_weights_in_mobilebert",
]
)
_import_structure["models.mobilenet_v1"].extend(
[
"MOBILENET_V1_PRETRAINED_MODEL_ARCHIVE_LIST",
"MobileNetV1ForImageClassification",
"MobileNetV1Model",
"MobileNetV1PreTrainedModel",
"load_tf_weights_in_mobilenet_v1",
]
)
_import_structure["models.mobilenet_v2"].extend(
[
"MOBILENET_V2_PRETRAINED_MODEL_ARCHIVE_LIST",
"MobileNetV2ForImageClassification",
"MobileNetV2ForSemanticSegmentation",
"MobileNetV2Model",
"MobileNetV2PreTrainedModel",
"load_tf_weights_in_mobilenet_v2",
]
)
_import_structure["models.mobilevit"].extend(
[
"MOBILEVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"MobileViTForImageClassification",
"MobileViTForSemanticSegmentation",
"MobileViTModel",
"MobileViTPreTrainedModel",
]
)
_import_structure["models.mobilevitv2"].extend(
[
"MOBILEVITV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"MobileViTV2ForImageClassification",
"MobileViTV2ForSemanticSegmentation",
"MobileViTV2Model",
"MobileViTV2PreTrainedModel",
]
)
_import_structure["models.mpnet"].extend(
[
"MPNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"MPNetForMaskedLM",
"MPNetForMultipleChoice",
"MPNetForQuestionAnswering",
"MPNetForSequenceClassification",
"MPNetForTokenClassification",
"MPNetLayer",
"MPNetModel",
"MPNetPreTrainedModel",
]
)
_import_structure["models.mpt"].extend(
[
"MPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"MptForCausalLM",
"MptForQuestionAnswering",
"MptForSequenceClassification",
"MptForTokenClassification",
"MptModel",
"MptPreTrainedModel",
]
)
_import_structure["models.mra"].extend(
[
"MRA_PRETRAINED_MODEL_ARCHIVE_LIST",
"MraForMaskedLM",
"MraForMultipleChoice",
"MraForQuestionAnswering",
"MraForSequenceClassification",
"MraForTokenClassification",
"MraModel",
"MraPreTrainedModel",
]
)
_import_structure["models.mt5"].extend(
[
"MT5EncoderModel",
"MT5ForConditionalGeneration",
"MT5ForQuestionAnswering",
"MT5ForSequenceClassification",
"MT5ForTokenClassification",
"MT5Model",
"MT5PreTrainedModel",
]
)
_import_structure["models.musicgen"].extend(
[
"MUSICGEN_PRETRAINED_MODEL_ARCHIVE_LIST",
"MusicgenForCausalLM",
"MusicgenForConditionalGeneration",
"MusicgenModel",
"MusicgenPreTrainedModel",
"MusicgenProcessor",
]
)
_import_structure["models.musicgen_melody"].extend(
[
"MUSICGEN_MELODY_PRETRAINED_MODEL_ARCHIVE_LIST",
"MusicgenMelodyForCausalLM",
"MusicgenMelodyForConditionalGeneration",
"MusicgenMelodyModel",
"MusicgenMelodyPreTrainedModel",
]
)
_import_structure["models.mvp"].extend(
[
"MVP_PRETRAINED_MODEL_ARCHIVE_LIST",
"MvpForCausalLM",
"MvpForConditionalGeneration",
"MvpForQuestionAnswering",
"MvpForSequenceClassification",
"MvpModel",
"MvpPreTrainedModel",
]
)
_import_structure["models.nat"].extend(
[
"NAT_PRETRAINED_MODEL_ARCHIVE_LIST",
"NatBackbone",
"NatForImageClassification",
"NatModel",
"NatPreTrainedModel",
]
)
_import_structure["models.nezha"].extend(
[
"NEZHA_PRETRAINED_MODEL_ARCHIVE_LIST",
"NezhaForMaskedLM",
"NezhaForMultipleChoice",
"NezhaForNextSentencePrediction",
"NezhaForPreTraining",
"NezhaForQuestionAnswering",
"NezhaForSequenceClassification",
"NezhaForTokenClassification",
"NezhaModel",
"NezhaPreTrainedModel",
]
)
_import_structure["models.nllb_moe"].extend(
[
"NLLB_MOE_PRETRAINED_MODEL_ARCHIVE_LIST",
"NllbMoeForConditionalGeneration",
"NllbMoeModel",
"NllbMoePreTrainedModel",
"NllbMoeSparseMLP",
"NllbMoeTop2Router",
]
)
_import_structure["models.nystromformer"].extend(
[
"NYSTROMFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"NystromformerForMaskedLM",
"NystromformerForMultipleChoice",
"NystromformerForQuestionAnswering",
"NystromformerForSequenceClassification",
"NystromformerForTokenClassification",
"NystromformerLayer",
"NystromformerModel",
"NystromformerPreTrainedModel",
]
)
_import_structure["models.olmo"].extend(
[
"OlmoForCausalLM",
"OlmoModel",
"OlmoPreTrainedModel",
]
)
_import_structure["models.oneformer"].extend(
[
"ONEFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"OneFormerForUniversalSegmentation",
"OneFormerModel",
"OneFormerPreTrainedModel",
]
)
_import_structure["models.openai"].extend(
[
"OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"OpenAIGPTDoubleHeadsModel",
"OpenAIGPTForSequenceClassification",
"OpenAIGPTLMHeadModel",
"OpenAIGPTModel",
"OpenAIGPTPreTrainedModel",
"load_tf_weights_in_openai_gpt",
]
)
_import_structure["models.opt"].extend(
[
"OPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"OPTForCausalLM",
"OPTForQuestionAnswering",
"OPTForSequenceClassification",
"OPTModel",
"OPTPreTrainedModel",
]
)
_import_structure["models.owlv2"].extend(
[
"OWLV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Owlv2ForObjectDetection",
"Owlv2Model",
"Owlv2PreTrainedModel",
"Owlv2TextModel",
"Owlv2VisionModel",
]
)
_import_structure["models.owlvit"].extend(
[
"OWLVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"OwlViTForObjectDetection",
"OwlViTModel",
"OwlViTPreTrainedModel",
"OwlViTTextModel",
"OwlViTVisionModel",
]
)
_import_structure["models.patchtsmixer"].extend(
[
"PATCHTSMIXER_PRETRAINED_MODEL_ARCHIVE_LIST",
"PatchTSMixerForPrediction",
"PatchTSMixerForPretraining",
"PatchTSMixerForRegression",
"PatchTSMixerForTimeSeriesClassification",
"PatchTSMixerModel",
"PatchTSMixerPreTrainedModel",
]
)
_import_structure["models.patchtst"].extend(
[
"PATCHTST_PRETRAINED_MODEL_ARCHIVE_LIST",
"PatchTSTForClassification",
"PatchTSTForPrediction",
"PatchTSTForPretraining",
"PatchTSTForRegression",
"PatchTSTModel",
"PatchTSTPreTrainedModel",
]
)
_import_structure["models.pegasus"].extend(
[
"PegasusForCausalLM",
"PegasusForConditionalGeneration",
"PegasusModel",
"PegasusPreTrainedModel",
]
)
_import_structure["models.pegasus_x"].extend(
[
"PEGASUS_X_PRETRAINED_MODEL_ARCHIVE_LIST",
"PegasusXForConditionalGeneration",
"PegasusXModel",
"PegasusXPreTrainedModel",
]
)
_import_structure["models.perceiver"].extend(
[
"PERCEIVER_PRETRAINED_MODEL_ARCHIVE_LIST",
"PerceiverForImageClassificationConvProcessing",
"PerceiverForImageClassificationFourier",
"PerceiverForImageClassificationLearned",
"PerceiverForMaskedLM",
"PerceiverForMultimodalAutoencoding",
"PerceiverForOpticalFlow",
"PerceiverForSequenceClassification",
"PerceiverLayer",
"PerceiverModel",
"PerceiverPreTrainedModel",
]
)
_import_structure["models.persimmon"].extend(
[
"PersimmonForCausalLM",
"PersimmonForSequenceClassification",
"PersimmonModel",
"PersimmonPreTrainedModel",
]
)
_import_structure["models.phi"].extend(
[
"PHI_PRETRAINED_MODEL_ARCHIVE_LIST",
"PhiForCausalLM",
"PhiForSequenceClassification",
"PhiForTokenClassification",
"PhiModel",
"PhiPreTrainedModel",
]
)
_import_structure["models.phi3"].extend(
[
"PHI3_PRETRAINED_MODEL_ARCHIVE_LIST",
"Phi3ForCausalLM",
"Phi3ForSequenceClassification",
"Phi3ForTokenClassification",
"Phi3Model",
"Phi3PreTrainedModel",
]
)
_import_structure["models.pix2struct"].extend(
[
"PIX2STRUCT_PRETRAINED_MODEL_ARCHIVE_LIST",
"Pix2StructForConditionalGeneration",
"Pix2StructPreTrainedModel",
"Pix2StructTextModel",
"Pix2StructVisionModel",
]
)
_import_structure["models.plbart"].extend(
[
"PLBART_PRETRAINED_MODEL_ARCHIVE_LIST",
"PLBartForCausalLM",
"PLBartForConditionalGeneration",
"PLBartForSequenceClassification",
"PLBartModel",
"PLBartPreTrainedModel",
]
)
_import_structure["models.poolformer"].extend(
[
"POOLFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"PoolFormerForImageClassification",
"PoolFormerModel",
"PoolFormerPreTrainedModel",
]
)
_import_structure["models.pop2piano"].extend(
[
"POP2PIANO_PRETRAINED_MODEL_ARCHIVE_LIST",
"Pop2PianoForConditionalGeneration",
"Pop2PianoPreTrainedModel",
]
)
_import_structure["models.prophetnet"].extend(
[
"PROPHETNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"ProphetNetDecoder",
"ProphetNetEncoder",
"ProphetNetForCausalLM",
"ProphetNetForConditionalGeneration",
"ProphetNetModel",
"ProphetNetPreTrainedModel",
]
)
_import_structure["models.pvt"].extend(
[
"PVT_PRETRAINED_MODEL_ARCHIVE_LIST",
"PvtForImageClassification",
"PvtModel",
"PvtPreTrainedModel",
]
)
_import_structure["models.pvt_v2"].extend(
[
"PvtV2Backbone",
"PvtV2ForImageClassification",
"PvtV2Model",
"PvtV2PreTrainedModel",
]
)
_import_structure["models.qdqbert"].extend(
[
"QDQBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"QDQBertForMaskedLM",
"QDQBertForMultipleChoice",
"QDQBertForNextSentencePrediction",
"QDQBertForQuestionAnswering",
"QDQBertForSequenceClassification",
"QDQBertForTokenClassification",
"QDQBertLayer",
"QDQBertLMHeadModel",
"QDQBertModel",
"QDQBertPreTrainedModel",
"load_tf_weights_in_qdqbert",
]
)
_import_structure["models.qwen2"].extend(
[
"Qwen2ForCausalLM",
"Qwen2ForSequenceClassification",
"Qwen2Model",
"Qwen2PreTrainedModel",
]
)
_import_structure["models.qwen2_moe"].extend(
[
"Qwen2MoeForCausalLM",
"Qwen2MoeForSequenceClassification",
"Qwen2MoeModel",
"Qwen2MoePreTrainedModel",
]
)
_import_structure["models.rag"].extend(
[
"RagModel",
"RagPreTrainedModel",
"RagSequenceForGeneration",
"RagTokenForGeneration",
]
)
_import_structure["models.realm"].extend(
[
"REALM_PRETRAINED_MODEL_ARCHIVE_LIST",
"RealmEmbedder",
"RealmForOpenQA",
"RealmKnowledgeAugEncoder",
"RealmPreTrainedModel",
"RealmReader",
"RealmRetriever",
"RealmScorer",
"load_tf_weights_in_realm",
]
)
_import_structure["models.recurrent_gemma"].extend(
[
"RecurrentGemmaForCausalLM",
"RecurrentGemmaModel",
"RecurrentGemmaPreTrainedModel",
]
)
_import_structure["models.reformer"].extend(
[
"REFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"ReformerAttention",
"ReformerForMaskedLM",
"ReformerForQuestionAnswering",
"ReformerForSequenceClassification",
"ReformerLayer",
"ReformerModel",
"ReformerModelWithLMHead",
"ReformerPreTrainedModel",
]
)
_import_structure["models.regnet"].extend(
[
"REGNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"RegNetForImageClassification",
"RegNetModel",
"RegNetPreTrainedModel",
]
)
_import_structure["models.rembert"].extend(
[
"REMBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"RemBertForCausalLM",
"RemBertForMaskedLM",
"RemBertForMultipleChoice",
"RemBertForQuestionAnswering",
"RemBertForSequenceClassification",
"RemBertForTokenClassification",
"RemBertLayer",
"RemBertModel",
"RemBertPreTrainedModel",
"load_tf_weights_in_rembert",
]
)
_import_structure["models.resnet"].extend(
[
"RESNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"ResNetBackbone",
"ResNetForImageClassification",
"ResNetModel",
"ResNetPreTrainedModel",
]
)
_import_structure["models.roberta"].extend(
[
"ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"RobertaForCausalLM",
"RobertaForMaskedLM",
"RobertaForMultipleChoice",
"RobertaForQuestionAnswering",
"RobertaForSequenceClassification",
"RobertaForTokenClassification",
"RobertaModel",
"RobertaPreTrainedModel",
]
)
_import_structure["models.roberta_prelayernorm"].extend(
[
"ROBERTA_PRELAYERNORM_PRETRAINED_MODEL_ARCHIVE_LIST",
"RobertaPreLayerNormForCausalLM",
"RobertaPreLayerNormForMaskedLM",
"RobertaPreLayerNormForMultipleChoice",
"RobertaPreLayerNormForQuestionAnswering",
"RobertaPreLayerNormForSequenceClassification",
"RobertaPreLayerNormForTokenClassification",
"RobertaPreLayerNormModel",
"RobertaPreLayerNormPreTrainedModel",
]
)
_import_structure["models.roc_bert"].extend(
[
"ROC_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"RoCBertForCausalLM",
"RoCBertForMaskedLM",
"RoCBertForMultipleChoice",
"RoCBertForPreTraining",
"RoCBertForQuestionAnswering",
"RoCBertForSequenceClassification",
"RoCBertForTokenClassification",
"RoCBertLayer",
"RoCBertModel",
"RoCBertPreTrainedModel",
"load_tf_weights_in_roc_bert",
]
)
_import_structure["models.roformer"].extend(
[
"ROFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"RoFormerForCausalLM",
"RoFormerForMaskedLM",
"RoFormerForMultipleChoice",
"RoFormerForQuestionAnswering",
"RoFormerForSequenceClassification",
"RoFormerForTokenClassification",
"RoFormerLayer",
"RoFormerModel",
"RoFormerPreTrainedModel",
"load_tf_weights_in_roformer",
]
)
_import_structure["models.rwkv"].extend(
[
"RWKV_PRETRAINED_MODEL_ARCHIVE_LIST",
"RwkvForCausalLM",
"RwkvModel",
"RwkvPreTrainedModel",
]
)
_import_structure["models.sam"].extend(
[
"SAM_PRETRAINED_MODEL_ARCHIVE_LIST",
"SamModel",
"SamPreTrainedModel",
]
)
_import_structure["models.seamless_m4t"].extend(
[
"SEAMLESS_M4T_PRETRAINED_MODEL_ARCHIVE_LIST",
"SeamlessM4TCodeHifiGan",
"SeamlessM4TForSpeechToSpeech",
"SeamlessM4TForSpeechToText",
"SeamlessM4TForTextToSpeech",
"SeamlessM4TForTextToText",
"SeamlessM4THifiGan",
"SeamlessM4TModel",
"SeamlessM4TPreTrainedModel",
"SeamlessM4TTextToUnitForConditionalGeneration",
"SeamlessM4TTextToUnitModel",
]
)
_import_structure["models.seamless_m4t_v2"].extend(
[
"SEAMLESS_M4T_V2_PRETRAINED_MODEL_ARCHIVE_LIST",
"SeamlessM4Tv2ForSpeechToSpeech",
"SeamlessM4Tv2ForSpeechToText",
"SeamlessM4Tv2ForTextToSpeech",
"SeamlessM4Tv2ForTextToText",
"SeamlessM4Tv2Model",
"SeamlessM4Tv2PreTrainedModel",
]
)
_import_structure["models.segformer"].extend(
[
"SEGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"SegformerDecodeHead",
"SegformerForImageClassification",
"SegformerForSemanticSegmentation",
"SegformerLayer",
"SegformerModel",
"SegformerPreTrainedModel",
]
)
_import_structure["models.seggpt"].extend(
[
"SEGGPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"SegGptForImageSegmentation",
"SegGptModel",
"SegGptPreTrainedModel",
]
)
_import_structure["models.sew"].extend(
[
"SEW_PRETRAINED_MODEL_ARCHIVE_LIST",
"SEWForCTC",
"SEWForSequenceClassification",
"SEWModel",
"SEWPreTrainedModel",
]
)
_import_structure["models.sew_d"].extend(
[
"SEW_D_PRETRAINED_MODEL_ARCHIVE_LIST",
"SEWDForCTC",
"SEWDForSequenceClassification",
"SEWDModel",
"SEWDPreTrainedModel",
]
)
_import_structure["models.siglip"].extend(
[
"SIGLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"SiglipForImageClassification",
"SiglipModel",
"SiglipPreTrainedModel",
"SiglipTextModel",
"SiglipVisionModel",
]
)
_import_structure["models.speech_encoder_decoder"].extend(["SpeechEncoderDecoderModel"])
_import_structure["models.speech_to_text"].extend(
[
"SPEECH_TO_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST",
"Speech2TextForConditionalGeneration",
"Speech2TextModel",
"Speech2TextPreTrainedModel",
]
)
_import_structure["models.speech_to_text_2"].extend(["Speech2Text2ForCausalLM", "Speech2Text2PreTrainedModel"])
_import_structure["models.speecht5"].extend(
[
"SPEECHT5_PRETRAINED_MODEL_ARCHIVE_LIST",
"SpeechT5ForSpeechToSpeech",
"SpeechT5ForSpeechToText",
"SpeechT5ForTextToSpeech",
"SpeechT5HifiGan",
"SpeechT5Model",
"SpeechT5PreTrainedModel",
]
)
_import_structure["models.splinter"].extend(
[
"SPLINTER_PRETRAINED_MODEL_ARCHIVE_LIST",
"SplinterForPreTraining",
"SplinterForQuestionAnswering",
"SplinterLayer",
"SplinterModel",
"SplinterPreTrainedModel",
]
)
_import_structure["models.squeezebert"].extend(
[
"SQUEEZEBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"SqueezeBertForMaskedLM",
"SqueezeBertForMultipleChoice",
"SqueezeBertForQuestionAnswering",
"SqueezeBertForSequenceClassification",
"SqueezeBertForTokenClassification",
"SqueezeBertModel",
"SqueezeBertModule",
"SqueezeBertPreTrainedModel",
]
)
_import_structure["models.stablelm"].extend(
[
"StableLmForCausalLM",
"StableLmForSequenceClassification",
"StableLmModel",
"StableLmPreTrainedModel",
]
)
_import_structure["models.starcoder2"].extend(
[
"Starcoder2ForCausalLM",
"Starcoder2ForSequenceClassification",
"Starcoder2Model",
"Starcoder2PreTrainedModel",
]
)
_import_structure["models.superpoint"].extend(
[
"SUPERPOINT_PRETRAINED_MODEL_ARCHIVE_LIST",
"SuperPointForKeypointDetection",
"SuperPointPreTrainedModel",
]
)
_import_structure["models.swiftformer"].extend(
[
"SWIFTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"SwiftFormerForImageClassification",
"SwiftFormerModel",
"SwiftFormerPreTrainedModel",
]
)
_import_structure["models.swin"].extend(
[
"SWIN_PRETRAINED_MODEL_ARCHIVE_LIST",
"SwinBackbone",
"SwinForImageClassification",
"SwinForMaskedImageModeling",
"SwinModel",
"SwinPreTrainedModel",
]
)
_import_structure["models.swin2sr"].extend(
[
"SWIN2SR_PRETRAINED_MODEL_ARCHIVE_LIST",
"Swin2SRForImageSuperResolution",
"Swin2SRModel",
"Swin2SRPreTrainedModel",
]
)
_import_structure["models.swinv2"].extend(
[
"SWINV2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Swinv2Backbone",
"Swinv2ForImageClassification",
"Swinv2ForMaskedImageModeling",
"Swinv2Model",
"Swinv2PreTrainedModel",
]
)
_import_structure["models.switch_transformers"].extend(
[
"SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST",
"SwitchTransformersEncoderModel",
"SwitchTransformersForConditionalGeneration",
"SwitchTransformersModel",
"SwitchTransformersPreTrainedModel",
"SwitchTransformersSparseMLP",
"SwitchTransformersTop1Router",
]
)
_import_structure["models.t5"].extend(
[
"T5_PRETRAINED_MODEL_ARCHIVE_LIST",
"T5EncoderModel",
"T5ForConditionalGeneration",
"T5ForQuestionAnswering",
"T5ForSequenceClassification",
"T5ForTokenClassification",
"T5Model",
"T5PreTrainedModel",
"load_tf_weights_in_t5",
]
)
_import_structure["models.table_transformer"].extend(
[
"TABLE_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TableTransformerForObjectDetection",
"TableTransformerModel",
"TableTransformerPreTrainedModel",
]
)
_import_structure["models.tapas"].extend(
[
"TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST",
"TapasForMaskedLM",
"TapasForQuestionAnswering",
"TapasForSequenceClassification",
"TapasModel",
"TapasPreTrainedModel",
"load_tf_weights_in_tapas",
]
)
_import_structure["models.time_series_transformer"].extend(
[
"TIME_SERIES_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TimeSeriesTransformerForPrediction",
"TimeSeriesTransformerModel",
"TimeSeriesTransformerPreTrainedModel",
]
)
_import_structure["models.timesformer"].extend(
[
"TIMESFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TimesformerForVideoClassification",
"TimesformerModel",
"TimesformerPreTrainedModel",
]
)
_import_structure["models.timm_backbone"].extend(["TimmBackbone"])
_import_structure["models.trocr"].extend(
[
"TROCR_PRETRAINED_MODEL_ARCHIVE_LIST",
"TrOCRForCausalLM",
"TrOCRPreTrainedModel",
]
)
_import_structure["models.tvlt"].extend(
[
"TVLT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TvltForAudioVisualClassification",
"TvltForPreTraining",
"TvltModel",
"TvltPreTrainedModel",
]
)
_import_structure["models.tvp"].extend(
[
"TVP_PRETRAINED_MODEL_ARCHIVE_LIST",
"TvpForVideoGrounding",
"TvpModel",
"TvpPreTrainedModel",
]
)
_import_structure["models.udop"].extend(
[
"UDOP_PRETRAINED_MODEL_ARCHIVE_LIST",
"UdopEncoderModel",
"UdopForConditionalGeneration",
"UdopModel",
"UdopPreTrainedModel",
],
)
_import_structure["models.umt5"].extend(
[
"UMT5EncoderModel",
"UMT5ForConditionalGeneration",
"UMT5ForQuestionAnswering",
"UMT5ForSequenceClassification",
"UMT5ForTokenClassification",
"UMT5Model",
"UMT5PreTrainedModel",
]
)
_import_structure["models.unispeech"].extend(
[
"UNISPEECH_PRETRAINED_MODEL_ARCHIVE_LIST",
"UniSpeechForCTC",
"UniSpeechForPreTraining",
"UniSpeechForSequenceClassification",
"UniSpeechModel",
"UniSpeechPreTrainedModel",
]
)
_import_structure["models.unispeech_sat"].extend(
[
"UNISPEECH_SAT_PRETRAINED_MODEL_ARCHIVE_LIST",
"UniSpeechSatForAudioFrameClassification",
"UniSpeechSatForCTC",
"UniSpeechSatForPreTraining",
"UniSpeechSatForSequenceClassification",
"UniSpeechSatForXVector",
"UniSpeechSatModel",
"UniSpeechSatPreTrainedModel",
]
)
_import_structure["models.univnet"].extend(
[
"UNIVNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"UnivNetModel",
]
)
_import_structure["models.upernet"].extend(
[
"UperNetForSemanticSegmentation",
"UperNetPreTrainedModel",
]
)
_import_structure["models.videomae"].extend(
[
"VIDEOMAE_PRETRAINED_MODEL_ARCHIVE_LIST",
"VideoMAEForPreTraining",
"VideoMAEForVideoClassification",
"VideoMAEModel",
"VideoMAEPreTrainedModel",
]
)
_import_structure["models.vilt"].extend(
[
"VILT_PRETRAINED_MODEL_ARCHIVE_LIST",
"ViltForImageAndTextRetrieval",
"ViltForImagesAndTextClassification",
"ViltForMaskedLM",
"ViltForQuestionAnswering",
"ViltForTokenClassification",
"ViltLayer",
"ViltModel",
"ViltPreTrainedModel",
]
)
_import_structure["models.vipllava"].extend(
[
"VIPLLAVA_PRETRAINED_MODEL_ARCHIVE_LIST",
"VipLlavaForConditionalGeneration",
"VipLlavaPreTrainedModel",
]
)
_import_structure["models.vision_encoder_decoder"].extend(["VisionEncoderDecoderModel"])
_import_structure["models.vision_text_dual_encoder"].extend(["VisionTextDualEncoderModel"])
_import_structure["models.visual_bert"].extend(
[
"VISUAL_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"VisualBertForMultipleChoice",
"VisualBertForPreTraining",
"VisualBertForQuestionAnswering",
"VisualBertForRegionToPhraseAlignment",
"VisualBertForVisualReasoning",
"VisualBertLayer",
"VisualBertModel",
"VisualBertPreTrainedModel",
]
)
_import_structure["models.vit"].extend(
[
"VIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"ViTForImageClassification",
"ViTForMaskedImageModeling",
"ViTModel",
"ViTPreTrainedModel",
]
)
_import_structure["models.vit_hybrid"].extend(
[
"VIT_HYBRID_PRETRAINED_MODEL_ARCHIVE_LIST",
"ViTHybridForImageClassification",
"ViTHybridModel",
"ViTHybridPreTrainedModel",
]
)
_import_structure["models.vit_mae"].extend(
[
"VIT_MAE_PRETRAINED_MODEL_ARCHIVE_LIST",
"ViTMAEForPreTraining",
"ViTMAELayer",
"ViTMAEModel",
"ViTMAEPreTrainedModel",
]
)
_import_structure["models.vit_msn"].extend(
[
"VIT_MSN_PRETRAINED_MODEL_ARCHIVE_LIST",
"ViTMSNForImageClassification",
"ViTMSNModel",
"ViTMSNPreTrainedModel",
]
)
_import_structure["models.vitdet"].extend(
[
"VITDET_PRETRAINED_MODEL_ARCHIVE_LIST",
"VitDetBackbone",
"VitDetModel",
"VitDetPreTrainedModel",
]
)
_import_structure["models.vitmatte"].extend(
[
"VITMATTE_PRETRAINED_MODEL_ARCHIVE_LIST",
"VitMatteForImageMatting",
"VitMattePreTrainedModel",
]
)
_import_structure["models.vits"].extend(
[
"VITS_PRETRAINED_MODEL_ARCHIVE_LIST",
"VitsModel",
"VitsPreTrainedModel",
]
)
_import_structure["models.vivit"].extend(
[
"VIVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"VivitForVideoClassification",
"VivitModel",
"VivitPreTrainedModel",
]
)
_import_structure["models.wav2vec2"].extend(
[
"WAV_2_VEC_2_PRETRAINED_MODEL_ARCHIVE_LIST",
"Wav2Vec2ForAudioFrameClassification",
"Wav2Vec2ForCTC",
"Wav2Vec2ForMaskedLM",
"Wav2Vec2ForPreTraining",
"Wav2Vec2ForSequenceClassification",
"Wav2Vec2ForXVector",
"Wav2Vec2Model",
"Wav2Vec2PreTrainedModel",
]
)
_import_structure["models.wav2vec2_bert"].extend(
[
"WAV2VEC2_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"Wav2Vec2BertForAudioFrameClassification",
"Wav2Vec2BertForCTC",
"Wav2Vec2BertForSequenceClassification",
"Wav2Vec2BertForXVector",
"Wav2Vec2BertModel",
"Wav2Vec2BertPreTrainedModel",
]
)
_import_structure["models.wav2vec2_conformer"].extend(
[
"WAV2VEC2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"Wav2Vec2ConformerForAudioFrameClassification",
"Wav2Vec2ConformerForCTC",
"Wav2Vec2ConformerForPreTraining",
"Wav2Vec2ConformerForSequenceClassification",
"Wav2Vec2ConformerForXVector",
"Wav2Vec2ConformerModel",
"Wav2Vec2ConformerPreTrainedModel",
]
)
_import_structure["models.wavlm"].extend(
[
"WAVLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"WavLMForAudioFrameClassification",
"WavLMForCTC",
"WavLMForSequenceClassification",
"WavLMForXVector",
"WavLMModel",
"WavLMPreTrainedModel",
]
)
_import_structure["models.whisper"].extend(
[
"WHISPER_PRETRAINED_MODEL_ARCHIVE_LIST",
"WhisperForAudioClassification",
"WhisperForCausalLM",
"WhisperForConditionalGeneration",
"WhisperModel",
"WhisperPreTrainedModel",
]
)
_import_structure["models.x_clip"].extend(
[
"XCLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"XCLIPModel",
"XCLIPPreTrainedModel",
"XCLIPTextModel",
"XCLIPVisionModel",
]
)
_import_structure["models.xglm"].extend(
[
"XGLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"XGLMForCausalLM",
"XGLMModel",
"XGLMPreTrainedModel",
]
)
_import_structure["models.xlm"].extend(
[
"XLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"XLMForMultipleChoice",
"XLMForQuestionAnswering",
"XLMForQuestionAnsweringSimple",
"XLMForSequenceClassification",
"XLMForTokenClassification",
"XLMModel",
"XLMPreTrainedModel",
"XLMWithLMHeadModel",
]
)
_import_structure["models.xlm_prophetnet"].extend(
[
"XLM_PROPHETNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"XLMProphetNetDecoder",
"XLMProphetNetEncoder",
"XLMProphetNetForCausalLM",
"XLMProphetNetForConditionalGeneration",
"XLMProphetNetModel",
"XLMProphetNetPreTrainedModel",
]
)
_import_structure["models.xlm_roberta"].extend(
[
"XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"XLMRobertaForCausalLM",
"XLMRobertaForMaskedLM",
"XLMRobertaForMultipleChoice",
"XLMRobertaForQuestionAnswering",
"XLMRobertaForSequenceClassification",
"XLMRobertaForTokenClassification",
"XLMRobertaModel",
"XLMRobertaPreTrainedModel",
]
)
_import_structure["models.xlm_roberta_xl"].extend(
[
"XLM_ROBERTA_XL_PRETRAINED_MODEL_ARCHIVE_LIST",
"XLMRobertaXLForCausalLM",
"XLMRobertaXLForMaskedLM",
"XLMRobertaXLForMultipleChoice",
"XLMRobertaXLForQuestionAnswering",
"XLMRobertaXLForSequenceClassification",
"XLMRobertaXLForTokenClassification",
"XLMRobertaXLModel",
"XLMRobertaXLPreTrainedModel",
]
)
_import_structure["models.xlnet"].extend(
[
"XLNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"XLNetForMultipleChoice",
"XLNetForQuestionAnswering",
"XLNetForQuestionAnsweringSimple",
"XLNetForSequenceClassification",
"XLNetForTokenClassification",
"XLNetLMHeadModel",
"XLNetModel",
"XLNetPreTrainedModel",
"load_tf_weights_in_xlnet",
]
)
_import_structure["models.xmod"].extend(
[
"XMOD_PRETRAINED_MODEL_ARCHIVE_LIST",
"XmodForCausalLM",
"XmodForMaskedLM",
"XmodForMultipleChoice",
"XmodForQuestionAnswering",
"XmodForSequenceClassification",
"XmodForTokenClassification",
"XmodModel",
"XmodPreTrainedModel",
]
)
_import_structure["models.yolos"].extend(
[
"YOLOS_PRETRAINED_MODEL_ARCHIVE_LIST",
"YolosForObjectDetection",
"YolosModel",
"YolosPreTrainedModel",
]
)
_import_structure["models.yoso"].extend(
[
"YOSO_PRETRAINED_MODEL_ARCHIVE_LIST",
"YosoForMaskedLM",
"YosoForMultipleChoice",
"YosoForQuestionAnswering",
"YosoForSequenceClassification",
"YosoForTokenClassification",
"YosoLayer",
"YosoModel",
"YosoPreTrainedModel",
]
)
_import_structure["optimization"] = [
"Adafactor",
"AdamW",
"get_constant_schedule",
"get_constant_schedule_with_warmup",
"get_cosine_schedule_with_warmup",
"get_cosine_with_hard_restarts_schedule_with_warmup",
"get_inverse_sqrt_schedule",
"get_linear_schedule_with_warmup",
"get_polynomial_decay_schedule_with_warmup",
"get_scheduler",
"get_wsd_schedule",
]
_import_structure["pytorch_utils"] = [
"Conv1D",
"apply_chunking_to_forward",
"prune_layer",
]
_import_structure["sagemaker"] = []
_import_structure["time_series_utils"] = []
_import_structure["trainer"] = ["Trainer"]
_import_structure["trainer_pt_utils"] = ["torch_distributed_zero_first"]
_import_structure["trainer_seq2seq"] = ["Seq2SeqTrainer"]
# TensorFlow-backed objects
try:
if not is_tf_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_tf_objects
_import_structure["utils.dummy_tf_objects"] = [name for name in dir(dummy_tf_objects) if not name.startswith("_")]
else:
_import_structure["activations_tf"] = []
_import_structure["benchmark.benchmark_args_tf"] = ["TensorFlowBenchmarkArguments"]
_import_structure["benchmark.benchmark_tf"] = ["TensorFlowBenchmark"]
_import_structure["generation"].extend(
[
"TFForcedBOSTokenLogitsProcessor",
"TFForcedEOSTokenLogitsProcessor",
"TFForceTokensLogitsProcessor",
"TFGenerationMixin",
"TFLogitsProcessor",
"TFLogitsProcessorList",
"TFLogitsWarper",
"TFMinLengthLogitsProcessor",
"TFNoBadWordsLogitsProcessor",
"TFNoRepeatNGramLogitsProcessor",
"TFRepetitionPenaltyLogitsProcessor",
"TFSuppressTokensAtBeginLogitsProcessor",
"TFSuppressTokensLogitsProcessor",
"TFTemperatureLogitsWarper",
"TFTopKLogitsWarper",
"TFTopPLogitsWarper",
]
)
_import_structure["keras_callbacks"] = ["KerasMetricCallback", "PushToHubCallback"]
_import_structure["modeling_tf_outputs"] = []
_import_structure["modeling_tf_utils"] = [
"TFPreTrainedModel",
"TFSequenceSummary",
"TFSharedEmbeddings",
"shape_list",
]
# TensorFlow models structure
_import_structure["models.albert"].extend(
[
"TF_ALBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFAlbertForMaskedLM",
"TFAlbertForMultipleChoice",
"TFAlbertForPreTraining",
"TFAlbertForQuestionAnswering",
"TFAlbertForSequenceClassification",
"TFAlbertForTokenClassification",
"TFAlbertMainLayer",
"TFAlbertModel",
"TFAlbertPreTrainedModel",
]
)
_import_structure["models.auto"].extend(
[
"TF_MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING",
"TF_MODEL_FOR_CAUSAL_LM_MAPPING",
"TF_MODEL_FOR_DOCUMENT_QUESTION_ANSWERING_MAPPING",
"TF_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING",
"TF_MODEL_FOR_MASKED_IMAGE_MODELING_MAPPING",
"TF_MODEL_FOR_MASKED_LM_MAPPING",
"TF_MODEL_FOR_MASK_GENERATION_MAPPING",
"TF_MODEL_FOR_MULTIPLE_CHOICE_MAPPING",
"TF_MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING",
"TF_MODEL_FOR_PRETRAINING_MAPPING",
"TF_MODEL_FOR_QUESTION_ANSWERING_MAPPING",
"TF_MODEL_FOR_SEMANTIC_SEGMENTATION_MAPPING",
"TF_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING",
"TF_MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING",
"TF_MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING",
"TF_MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING",
"TF_MODEL_FOR_TEXT_ENCODING_MAPPING",
"TF_MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING",
"TF_MODEL_FOR_VISION_2_SEQ_MAPPING",
"TF_MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING",
"TF_MODEL_MAPPING",
"TF_MODEL_WITH_LM_HEAD_MAPPING",
"TFAutoModel",
"TFAutoModelForAudioClassification",
"TFAutoModelForCausalLM",
"TFAutoModelForDocumentQuestionAnswering",
"TFAutoModelForImageClassification",
"TFAutoModelForMaskedImageModeling",
"TFAutoModelForMaskedLM",
"TFAutoModelForMaskGeneration",
"TFAutoModelForMultipleChoice",
"TFAutoModelForNextSentencePrediction",
"TFAutoModelForPreTraining",
"TFAutoModelForQuestionAnswering",
"TFAutoModelForSemanticSegmentation",
"TFAutoModelForSeq2SeqLM",
"TFAutoModelForSequenceClassification",
"TFAutoModelForSpeechSeq2Seq",
"TFAutoModelForTableQuestionAnswering",
"TFAutoModelForTextEncoding",
"TFAutoModelForTokenClassification",
"TFAutoModelForVision2Seq",
"TFAutoModelForZeroShotImageClassification",
"TFAutoModelWithLMHead",
]
)
_import_structure["models.bart"].extend(
[
"TFBartForConditionalGeneration",
"TFBartForSequenceClassification",
"TFBartModel",
"TFBartPretrainedModel",
]
)
_import_structure["models.bert"].extend(
[
"TF_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFBertEmbeddings",
"TFBertForMaskedLM",
"TFBertForMultipleChoice",
"TFBertForNextSentencePrediction",
"TFBertForPreTraining",
"TFBertForQuestionAnswering",
"TFBertForSequenceClassification",
"TFBertForTokenClassification",
"TFBertLMHeadModel",
"TFBertMainLayer",
"TFBertModel",
"TFBertPreTrainedModel",
]
)
_import_structure["models.blenderbot"].extend(
[
"TFBlenderbotForConditionalGeneration",
"TFBlenderbotModel",
"TFBlenderbotPreTrainedModel",
]
)
_import_structure["models.blenderbot_small"].extend(
[
"TFBlenderbotSmallForConditionalGeneration",
"TFBlenderbotSmallModel",
"TFBlenderbotSmallPreTrainedModel",
]
)
_import_structure["models.blip"].extend(
[
"TF_BLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFBlipForConditionalGeneration",
"TFBlipForImageTextRetrieval",
"TFBlipForQuestionAnswering",
"TFBlipModel",
"TFBlipPreTrainedModel",
"TFBlipTextModel",
"TFBlipVisionModel",
]
)
_import_structure["models.camembert"].extend(
[
"TF_CAMEMBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFCamembertForCausalLM",
"TFCamembertForMaskedLM",
"TFCamembertForMultipleChoice",
"TFCamembertForQuestionAnswering",
"TFCamembertForSequenceClassification",
"TFCamembertForTokenClassification",
"TFCamembertModel",
"TFCamembertPreTrainedModel",
]
)
_import_structure["models.clip"].extend(
[
"TF_CLIP_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFCLIPModel",
"TFCLIPPreTrainedModel",
"TFCLIPTextModel",
"TFCLIPVisionModel",
]
)
_import_structure["models.convbert"].extend(
[
"TF_CONVBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFConvBertForMaskedLM",
"TFConvBertForMultipleChoice",
"TFConvBertForQuestionAnswering",
"TFConvBertForSequenceClassification",
"TFConvBertForTokenClassification",
"TFConvBertLayer",
"TFConvBertModel",
"TFConvBertPreTrainedModel",
]
)
_import_structure["models.convnext"].extend(
[
"TFConvNextForImageClassification",
"TFConvNextModel",
"TFConvNextPreTrainedModel",
]
)
_import_structure["models.convnextv2"].extend(
[
"TFConvNextV2ForImageClassification",
"TFConvNextV2Model",
"TFConvNextV2PreTrainedModel",
]
)
_import_structure["models.ctrl"].extend(
[
"TF_CTRL_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFCTRLForSequenceClassification",
"TFCTRLLMHeadModel",
"TFCTRLModel",
"TFCTRLPreTrainedModel",
]
)
_import_structure["models.cvt"].extend(
[
"TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFCvtForImageClassification",
"TFCvtModel",
"TFCvtPreTrainedModel",
]
)
_import_structure["models.data2vec"].extend(
[
"TFData2VecVisionForImageClassification",
"TFData2VecVisionForSemanticSegmentation",
"TFData2VecVisionModel",
"TFData2VecVisionPreTrainedModel",
]
)
_import_structure["models.deberta"].extend(
[
"TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFDebertaForMaskedLM",
"TFDebertaForQuestionAnswering",
"TFDebertaForSequenceClassification",
"TFDebertaForTokenClassification",
"TFDebertaModel",
"TFDebertaPreTrainedModel",
]
)
_import_structure["models.deberta_v2"].extend(
[
"TF_DEBERTA_V2_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFDebertaV2ForMaskedLM",
"TFDebertaV2ForMultipleChoice",
"TFDebertaV2ForQuestionAnswering",
"TFDebertaV2ForSequenceClassification",
"TFDebertaV2ForTokenClassification",
"TFDebertaV2Model",
"TFDebertaV2PreTrainedModel",
]
)
_import_structure["models.deit"].extend(
[
"TF_DEIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFDeiTForImageClassification",
"TFDeiTForImageClassificationWithTeacher",
"TFDeiTForMaskedImageModeling",
"TFDeiTModel",
"TFDeiTPreTrainedModel",
]
)
_import_structure["models.deprecated.transfo_xl"].extend(
[
"TF_TRANSFO_XL_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFAdaptiveEmbedding",
"TFTransfoXLForSequenceClassification",
"TFTransfoXLLMHeadModel",
"TFTransfoXLMainLayer",
"TFTransfoXLModel",
"TFTransfoXLPreTrainedModel",
]
)
_import_structure["models.distilbert"].extend(
[
"TF_DISTILBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFDistilBertForMaskedLM",
"TFDistilBertForMultipleChoice",
"TFDistilBertForQuestionAnswering",
"TFDistilBertForSequenceClassification",
"TFDistilBertForTokenClassification",
"TFDistilBertMainLayer",
"TFDistilBertModel",
"TFDistilBertPreTrainedModel",
]
)
_import_structure["models.dpr"].extend(
[
"TF_DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TF_DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TF_DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFDPRContextEncoder",
"TFDPRPretrainedContextEncoder",
"TFDPRPretrainedQuestionEncoder",
"TFDPRPretrainedReader",
"TFDPRQuestionEncoder",
"TFDPRReader",
]
)
_import_structure["models.efficientformer"].extend(
[
"TF_EFFICIENTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFEfficientFormerForImageClassification",
"TFEfficientFormerForImageClassificationWithTeacher",
"TFEfficientFormerModel",
"TFEfficientFormerPreTrainedModel",
]
)
_import_structure["models.electra"].extend(
[
"TF_ELECTRA_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFElectraForMaskedLM",
"TFElectraForMultipleChoice",
"TFElectraForPreTraining",
"TFElectraForQuestionAnswering",
"TFElectraForSequenceClassification",
"TFElectraForTokenClassification",
"TFElectraModel",
"TFElectraPreTrainedModel",
]
)
_import_structure["models.encoder_decoder"].append("TFEncoderDecoderModel")
_import_structure["models.esm"].extend(
[
"ESM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFEsmForMaskedLM",
"TFEsmForSequenceClassification",
"TFEsmForTokenClassification",
"TFEsmModel",
"TFEsmPreTrainedModel",
]
)
_import_structure["models.flaubert"].extend(
[
"TF_FLAUBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFFlaubertForMultipleChoice",
"TFFlaubertForQuestionAnsweringSimple",
"TFFlaubertForSequenceClassification",
"TFFlaubertForTokenClassification",
"TFFlaubertModel",
"TFFlaubertPreTrainedModel",
"TFFlaubertWithLMHeadModel",
]
)
_import_structure["models.funnel"].extend(
[
"TF_FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFFunnelBaseModel",
"TFFunnelForMaskedLM",
"TFFunnelForMultipleChoice",
"TFFunnelForPreTraining",
"TFFunnelForQuestionAnswering",
"TFFunnelForSequenceClassification",
"TFFunnelForTokenClassification",
"TFFunnelModel",
"TFFunnelPreTrainedModel",
]
)
_import_structure["models.gpt2"].extend(
[
"TF_GPT2_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFGPT2DoubleHeadsModel",
"TFGPT2ForSequenceClassification",
"TFGPT2LMHeadModel",
"TFGPT2MainLayer",
"TFGPT2Model",
"TFGPT2PreTrainedModel",
]
)
_import_structure["models.gptj"].extend(
[
"TFGPTJForCausalLM",
"TFGPTJForQuestionAnswering",
"TFGPTJForSequenceClassification",
"TFGPTJModel",
"TFGPTJPreTrainedModel",
]
)
_import_structure["models.groupvit"].extend(
[
"TF_GROUPVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFGroupViTModel",
"TFGroupViTPreTrainedModel",
"TFGroupViTTextModel",
"TFGroupViTVisionModel",
]
)
_import_structure["models.hubert"].extend(
[
"TF_HUBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFHubertForCTC",
"TFHubertModel",
"TFHubertPreTrainedModel",
]
)
_import_structure["models.layoutlm"].extend(
[
"TF_LAYOUTLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFLayoutLMForMaskedLM",
"TFLayoutLMForQuestionAnswering",
"TFLayoutLMForSequenceClassification",
"TFLayoutLMForTokenClassification",
"TFLayoutLMMainLayer",
"TFLayoutLMModel",
"TFLayoutLMPreTrainedModel",
]
)
_import_structure["models.layoutlmv3"].extend(
[
"TF_LAYOUTLMV3_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFLayoutLMv3ForQuestionAnswering",
"TFLayoutLMv3ForSequenceClassification",
"TFLayoutLMv3ForTokenClassification",
"TFLayoutLMv3Model",
"TFLayoutLMv3PreTrainedModel",
]
)
_import_structure["models.led"].extend(["TFLEDForConditionalGeneration", "TFLEDModel", "TFLEDPreTrainedModel"])
_import_structure["models.longformer"].extend(
[
"TF_LONGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFLongformerForMaskedLM",
"TFLongformerForMultipleChoice",
"TFLongformerForQuestionAnswering",
"TFLongformerForSequenceClassification",
"TFLongformerForTokenClassification",
"TFLongformerModel",
"TFLongformerPreTrainedModel",
"TFLongformerSelfAttention",
]
)
_import_structure["models.lxmert"].extend(
[
"TF_LXMERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFLxmertForPreTraining",
"TFLxmertMainLayer",
"TFLxmertModel",
"TFLxmertPreTrainedModel",
"TFLxmertVisualFeatureEncoder",
]
)
_import_structure["models.marian"].extend(["TFMarianModel", "TFMarianMTModel", "TFMarianPreTrainedModel"])
_import_structure["models.mbart"].extend(
["TFMBartForConditionalGeneration", "TFMBartModel", "TFMBartPreTrainedModel"]
)
_import_structure["models.mobilebert"].extend(
[
"TF_MOBILEBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFMobileBertForMaskedLM",
"TFMobileBertForMultipleChoice",
"TFMobileBertForNextSentencePrediction",
"TFMobileBertForPreTraining",
"TFMobileBertForQuestionAnswering",
"TFMobileBertForSequenceClassification",
"TFMobileBertForTokenClassification",
"TFMobileBertMainLayer",
"TFMobileBertModel",
"TFMobileBertPreTrainedModel",
]
)
_import_structure["models.mobilevit"].extend(
[
"TF_MOBILEVIT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFMobileViTForImageClassification",
"TFMobileViTForSemanticSegmentation",
"TFMobileViTModel",
"TFMobileViTPreTrainedModel",
]
)
_import_structure["models.mpnet"].extend(
[
"TF_MPNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFMPNetForMaskedLM",
"TFMPNetForMultipleChoice",
"TFMPNetForQuestionAnswering",
"TFMPNetForSequenceClassification",
"TFMPNetForTokenClassification",
"TFMPNetMainLayer",
"TFMPNetModel",
"TFMPNetPreTrainedModel",
]
)
_import_structure["models.mt5"].extend(["TFMT5EncoderModel", "TFMT5ForConditionalGeneration", "TFMT5Model"])
_import_structure["models.openai"].extend(
[
"TF_OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFOpenAIGPTDoubleHeadsModel",
"TFOpenAIGPTForSequenceClassification",
"TFOpenAIGPTLMHeadModel",
"TFOpenAIGPTMainLayer",
"TFOpenAIGPTModel",
"TFOpenAIGPTPreTrainedModel",
]
)
_import_structure["models.opt"].extend(
[
"TFOPTForCausalLM",
"TFOPTModel",
"TFOPTPreTrainedModel",
]
)
_import_structure["models.pegasus"].extend(
[
"TFPegasusForConditionalGeneration",
"TFPegasusModel",
"TFPegasusPreTrainedModel",
]
)
_import_structure["models.rag"].extend(
[
"TFRagModel",
"TFRagPreTrainedModel",
"TFRagSequenceForGeneration",
"TFRagTokenForGeneration",
]
)
_import_structure["models.regnet"].extend(
[
"TF_REGNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFRegNetForImageClassification",
"TFRegNetModel",
"TFRegNetPreTrainedModel",
]
)
_import_structure["models.rembert"].extend(
[
"TF_REMBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFRemBertForCausalLM",
"TFRemBertForMaskedLM",
"TFRemBertForMultipleChoice",
"TFRemBertForQuestionAnswering",
"TFRemBertForSequenceClassification",
"TFRemBertForTokenClassification",
"TFRemBertLayer",
"TFRemBertModel",
"TFRemBertPreTrainedModel",
]
)
_import_structure["models.resnet"].extend(
[
"TF_RESNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFResNetForImageClassification",
"TFResNetModel",
"TFResNetPreTrainedModel",
]
)
_import_structure["models.roberta"].extend(
[
"TF_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFRobertaForCausalLM",
"TFRobertaForMaskedLM",
"TFRobertaForMultipleChoice",
"TFRobertaForQuestionAnswering",
"TFRobertaForSequenceClassification",
"TFRobertaForTokenClassification",
"TFRobertaMainLayer",
"TFRobertaModel",
"TFRobertaPreTrainedModel",
]
)
_import_structure["models.roberta_prelayernorm"].extend(
[
"TF_ROBERTA_PRELAYERNORM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFRobertaPreLayerNormForCausalLM",
"TFRobertaPreLayerNormForMaskedLM",
"TFRobertaPreLayerNormForMultipleChoice",
"TFRobertaPreLayerNormForQuestionAnswering",
"TFRobertaPreLayerNormForSequenceClassification",
"TFRobertaPreLayerNormForTokenClassification",
"TFRobertaPreLayerNormMainLayer",
"TFRobertaPreLayerNormModel",
"TFRobertaPreLayerNormPreTrainedModel",
]
)
_import_structure["models.roformer"].extend(
[
"TF_ROFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFRoFormerForCausalLM",
"TFRoFormerForMaskedLM",
"TFRoFormerForMultipleChoice",
"TFRoFormerForQuestionAnswering",
"TFRoFormerForSequenceClassification",
"TFRoFormerForTokenClassification",
"TFRoFormerLayer",
"TFRoFormerModel",
"TFRoFormerPreTrainedModel",
]
)
_import_structure["models.sam"].extend(
[
"TF_SAM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFSamModel",
"TFSamPreTrainedModel",
]
)
_import_structure["models.segformer"].extend(
[
"TF_SEGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFSegformerDecodeHead",
"TFSegformerForImageClassification",
"TFSegformerForSemanticSegmentation",
"TFSegformerModel",
"TFSegformerPreTrainedModel",
]
)
_import_structure["models.speech_to_text"].extend(
[
"TF_SPEECH_TO_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFSpeech2TextForConditionalGeneration",
"TFSpeech2TextModel",
"TFSpeech2TextPreTrainedModel",
]
)
_import_structure["models.swiftformer"].extend(
[
"TF_SWIFTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFSwiftFormerForImageClassification",
"TFSwiftFormerModel",
"TFSwiftFormerPreTrainedModel",
]
)
_import_structure["models.swin"].extend(
[
"TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFSwinForImageClassification",
"TFSwinForMaskedImageModeling",
"TFSwinModel",
"TFSwinPreTrainedModel",
]
)
_import_structure["models.t5"].extend(
[
"TF_T5_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFT5EncoderModel",
"TFT5ForConditionalGeneration",
"TFT5Model",
"TFT5PreTrainedModel",
]
)
_import_structure["models.tapas"].extend(
[
"TF_TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFTapasForMaskedLM",
"TFTapasForQuestionAnswering",
"TFTapasForSequenceClassification",
"TFTapasModel",
"TFTapasPreTrainedModel",
]
)
_import_structure["models.vision_encoder_decoder"].extend(["TFVisionEncoderDecoderModel"])
_import_structure["models.vision_text_dual_encoder"].extend(["TFVisionTextDualEncoderModel"])
_import_structure["models.vit"].extend(
[
"TFViTForImageClassification",
"TFViTModel",
"TFViTPreTrainedModel",
]
)
_import_structure["models.vit_mae"].extend(
[
"TFViTMAEForPreTraining",
"TFViTMAEModel",
"TFViTMAEPreTrainedModel",
]
)
_import_structure["models.wav2vec2"].extend(
[
"TF_WAV_2_VEC_2_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFWav2Vec2ForCTC",
"TFWav2Vec2ForSequenceClassification",
"TFWav2Vec2Model",
"TFWav2Vec2PreTrainedModel",
]
)
_import_structure["models.whisper"].extend(
[
"TF_WHISPER_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFWhisperForConditionalGeneration",
"TFWhisperModel",
"TFWhisperPreTrainedModel",
]
)
_import_structure["models.xglm"].extend(
[
"TF_XGLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFXGLMForCausalLM",
"TFXGLMModel",
"TFXGLMPreTrainedModel",
]
)
_import_structure["models.xlm"].extend(
[
"TF_XLM_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFXLMForMultipleChoice",
"TFXLMForQuestionAnsweringSimple",
"TFXLMForSequenceClassification",
"TFXLMForTokenClassification",
"TFXLMMainLayer",
"TFXLMModel",
"TFXLMPreTrainedModel",
"TFXLMWithLMHeadModel",
]
)
_import_structure["models.xlm_roberta"].extend(
[
"TF_XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFXLMRobertaForCausalLM",
"TFXLMRobertaForMaskedLM",
"TFXLMRobertaForMultipleChoice",
"TFXLMRobertaForQuestionAnswering",
"TFXLMRobertaForSequenceClassification",
"TFXLMRobertaForTokenClassification",
"TFXLMRobertaModel",
"TFXLMRobertaPreTrainedModel",
]
)
_import_structure["models.xlnet"].extend(
[
"TF_XLNET_PRETRAINED_MODEL_ARCHIVE_LIST",
"TFXLNetForMultipleChoice",
"TFXLNetForQuestionAnsweringSimple",
"TFXLNetForSequenceClassification",
"TFXLNetForTokenClassification",
"TFXLNetLMHeadModel",
"TFXLNetMainLayer",
"TFXLNetModel",
"TFXLNetPreTrainedModel",
]
)
_import_structure["optimization_tf"] = [
"AdamWeightDecay",
"GradientAccumulator",
"WarmUp",
"create_optimizer",
]
_import_structure["tf_utils"] = []
try:
if not (
is_librosa_available()
and is_essentia_available()
and is_scipy_available()
and is_torch_available()
and is_pretty_midi_available()
):
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import (
dummy_essentia_and_librosa_and_pretty_midi_and_scipy_and_torch_objects,
)
_import_structure["utils.dummy_essentia_and_librosa_and_pretty_midi_and_scipy_and_torch_objects"] = [
name
for name in dir(dummy_essentia_and_librosa_and_pretty_midi_and_scipy_and_torch_objects)
if not name.startswith("_")
]
else:
_import_structure["models.pop2piano"].append("Pop2PianoFeatureExtractor")
_import_structure["models.pop2piano"].append("Pop2PianoTokenizer")
_import_structure["models.pop2piano"].append("Pop2PianoProcessor")
try:
if not is_torchaudio_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import (
dummy_torchaudio_objects,
)
_import_structure["utils.dummy_torchaudio_objects"] = [
name for name in dir(dummy_torchaudio_objects) if not name.startswith("_")
]
else:
_import_structure["models.musicgen_melody"].append("MusicgenMelodyFeatureExtractor")
_import_structure["models.musicgen_melody"].append("MusicgenMelodyProcessor")
# FLAX-backed objects
try:
if not is_flax_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils import dummy_flax_objects
_import_structure["utils.dummy_flax_objects"] = [
name for name in dir(dummy_flax_objects) if not name.startswith("_")
]
else:
_import_structure["generation"].extend(
[
"FlaxForcedBOSTokenLogitsProcessor",
"FlaxForcedEOSTokenLogitsProcessor",
"FlaxForceTokensLogitsProcessor",
"FlaxGenerationMixin",
"FlaxLogitsProcessor",
"FlaxLogitsProcessorList",
"FlaxLogitsWarper",
"FlaxMinLengthLogitsProcessor",
"FlaxTemperatureLogitsWarper",
"FlaxSuppressTokensAtBeginLogitsProcessor",
"FlaxSuppressTokensLogitsProcessor",
"FlaxTopKLogitsWarper",
"FlaxTopPLogitsWarper",
"FlaxWhisperTimeStampLogitsProcessor",
]
)
_import_structure["modeling_flax_outputs"] = []
_import_structure["modeling_flax_utils"] = ["FlaxPreTrainedModel"]
_import_structure["models.albert"].extend(
[
"FlaxAlbertForMaskedLM",
"FlaxAlbertForMultipleChoice",
"FlaxAlbertForPreTraining",
"FlaxAlbertForQuestionAnswering",
"FlaxAlbertForSequenceClassification",
"FlaxAlbertForTokenClassification",
"FlaxAlbertModel",
"FlaxAlbertPreTrainedModel",
]
)
_import_structure["models.auto"].extend(
[
"FLAX_MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING",
"FLAX_MODEL_FOR_CAUSAL_LM_MAPPING",
"FLAX_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING",
"FLAX_MODEL_FOR_MASKED_LM_MAPPING",
"FLAX_MODEL_FOR_MULTIPLE_CHOICE_MAPPING",
"FLAX_MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING",
"FLAX_MODEL_FOR_PRETRAINING_MAPPING",
"FLAX_MODEL_FOR_QUESTION_ANSWERING_MAPPING",
"FLAX_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING",
"FLAX_MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING",
"FLAX_MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING",
"FLAX_MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING",
"FLAX_MODEL_FOR_VISION_2_SEQ_MAPPING",
"FLAX_MODEL_MAPPING",
"FlaxAutoModel",
"FlaxAutoModelForCausalLM",
"FlaxAutoModelForImageClassification",
"FlaxAutoModelForMaskedLM",
"FlaxAutoModelForMultipleChoice",
"FlaxAutoModelForNextSentencePrediction",
"FlaxAutoModelForPreTraining",
"FlaxAutoModelForQuestionAnswering",
"FlaxAutoModelForSeq2SeqLM",
"FlaxAutoModelForSequenceClassification",
"FlaxAutoModelForSpeechSeq2Seq",
"FlaxAutoModelForTokenClassification",
"FlaxAutoModelForVision2Seq",
]
)
# Flax models structure
_import_structure["models.bart"].extend(
[
"FlaxBartDecoderPreTrainedModel",
"FlaxBartForCausalLM",
"FlaxBartForConditionalGeneration",
"FlaxBartForQuestionAnswering",
"FlaxBartForSequenceClassification",
"FlaxBartModel",
"FlaxBartPreTrainedModel",
]
)
_import_structure["models.beit"].extend(
[
"FlaxBeitForImageClassification",
"FlaxBeitForMaskedImageModeling",
"FlaxBeitModel",
"FlaxBeitPreTrainedModel",
]
)
_import_structure["models.bert"].extend(
[
"FlaxBertForCausalLM",
"FlaxBertForMaskedLM",
"FlaxBertForMultipleChoice",
"FlaxBertForNextSentencePrediction",
"FlaxBertForPreTraining",
"FlaxBertForQuestionAnswering",
"FlaxBertForSequenceClassification",
"FlaxBertForTokenClassification",
"FlaxBertModel",
"FlaxBertPreTrainedModel",
]
)
_import_structure["models.big_bird"].extend(
[
"FlaxBigBirdForCausalLM",
"FlaxBigBirdForMaskedLM",
"FlaxBigBirdForMultipleChoice",
"FlaxBigBirdForPreTraining",
"FlaxBigBirdForQuestionAnswering",
"FlaxBigBirdForSequenceClassification",
"FlaxBigBirdForTokenClassification",
"FlaxBigBirdModel",
"FlaxBigBirdPreTrainedModel",
]
)
_import_structure["models.blenderbot"].extend(
[
"FlaxBlenderbotForConditionalGeneration",
"FlaxBlenderbotModel",
"FlaxBlenderbotPreTrainedModel",
]
)
_import_structure["models.blenderbot_small"].extend(
[
"FlaxBlenderbotSmallForConditionalGeneration",
"FlaxBlenderbotSmallModel",
"FlaxBlenderbotSmallPreTrainedModel",
]
)
_import_structure["models.bloom"].extend(
[
"FlaxBloomForCausalLM",
"FlaxBloomModel",
"FlaxBloomPreTrainedModel",
]
)
_import_structure["models.clip"].extend(
[
"FlaxCLIPModel",
"FlaxCLIPPreTrainedModel",
"FlaxCLIPTextModel",
"FlaxCLIPTextPreTrainedModel",
"FlaxCLIPTextModelWithProjection",
"FlaxCLIPVisionModel",
"FlaxCLIPVisionPreTrainedModel",
]
)
_import_structure["models.distilbert"].extend(
[
"FlaxDistilBertForMaskedLM",
"FlaxDistilBertForMultipleChoice",
"FlaxDistilBertForQuestionAnswering",
"FlaxDistilBertForSequenceClassification",
"FlaxDistilBertForTokenClassification",
"FlaxDistilBertModel",
"FlaxDistilBertPreTrainedModel",
]
)
_import_structure["models.electra"].extend(
[
"FlaxElectraForCausalLM",
"FlaxElectraForMaskedLM",
"FlaxElectraForMultipleChoice",
"FlaxElectraForPreTraining",
"FlaxElectraForQuestionAnswering",
"FlaxElectraForSequenceClassification",
"FlaxElectraForTokenClassification",
"FlaxElectraModel",
"FlaxElectraPreTrainedModel",
]
)
_import_structure["models.encoder_decoder"].append("FlaxEncoderDecoderModel")
_import_structure["models.gpt2"].extend(["FlaxGPT2LMHeadModel", "FlaxGPT2Model", "FlaxGPT2PreTrainedModel"])
_import_structure["models.gpt_neo"].extend(
["FlaxGPTNeoForCausalLM", "FlaxGPTNeoModel", "FlaxGPTNeoPreTrainedModel"]
)
_import_structure["models.gptj"].extend(["FlaxGPTJForCausalLM", "FlaxGPTJModel", "FlaxGPTJPreTrainedModel"])
_import_structure["models.llama"].extend(["FlaxLlamaForCausalLM", "FlaxLlamaModel", "FlaxLlamaPreTrainedModel"])
_import_structure["models.gemma"].extend(["FlaxGemmaForCausalLM", "FlaxGemmaModel", "FlaxGemmaPreTrainedModel"])
_import_structure["models.longt5"].extend(
[
"FlaxLongT5ForConditionalGeneration",
"FlaxLongT5Model",
"FlaxLongT5PreTrainedModel",
]
)
_import_structure["models.marian"].extend(
[
"FlaxMarianModel",
"FlaxMarianMTModel",
"FlaxMarianPreTrainedModel",
]
)
_import_structure["models.mbart"].extend(
[
"FlaxMBartForConditionalGeneration",
"FlaxMBartForQuestionAnswering",
"FlaxMBartForSequenceClassification",
"FlaxMBartModel",
"FlaxMBartPreTrainedModel",
]
)
_import_structure["models.mistral"].extend(
[
"FlaxMistralForCausalLM",
"FlaxMistralModel",
"FlaxMistralPreTrainedModel",
]
)
_import_structure["models.mt5"].extend(["FlaxMT5EncoderModel", "FlaxMT5ForConditionalGeneration", "FlaxMT5Model"])
_import_structure["models.opt"].extend(
[
"FlaxOPTForCausalLM",
"FlaxOPTModel",
"FlaxOPTPreTrainedModel",
]
)
_import_structure["models.pegasus"].extend(
[
"FlaxPegasusForConditionalGeneration",
"FlaxPegasusModel",
"FlaxPegasusPreTrainedModel",
]
)
_import_structure["models.regnet"].extend(
[
"FlaxRegNetForImageClassification",
"FlaxRegNetModel",
"FlaxRegNetPreTrainedModel",
]
)
_import_structure["models.resnet"].extend(
[
"FlaxResNetForImageClassification",
"FlaxResNetModel",
"FlaxResNetPreTrainedModel",
]
)
_import_structure["models.roberta"].extend(
[
"FlaxRobertaForCausalLM",
"FlaxRobertaForMaskedLM",
"FlaxRobertaForMultipleChoice",
"FlaxRobertaForQuestionAnswering",
"FlaxRobertaForSequenceClassification",
"FlaxRobertaForTokenClassification",
"FlaxRobertaModel",
"FlaxRobertaPreTrainedModel",
]
)
_import_structure["models.roberta_prelayernorm"].extend(
[
"FlaxRobertaPreLayerNormForCausalLM",
"FlaxRobertaPreLayerNormForMaskedLM",
"FlaxRobertaPreLayerNormForMultipleChoice",
"FlaxRobertaPreLayerNormForQuestionAnswering",
"FlaxRobertaPreLayerNormForSequenceClassification",
"FlaxRobertaPreLayerNormForTokenClassification",
"FlaxRobertaPreLayerNormModel",
"FlaxRobertaPreLayerNormPreTrainedModel",
]
)
_import_structure["models.roformer"].extend(
[
"FlaxRoFormerForMaskedLM",
"FlaxRoFormerForMultipleChoice",
"FlaxRoFormerForQuestionAnswering",
"FlaxRoFormerForSequenceClassification",
"FlaxRoFormerForTokenClassification",
"FlaxRoFormerModel",
"FlaxRoFormerPreTrainedModel",
]
)
_import_structure["models.speech_encoder_decoder"].append("FlaxSpeechEncoderDecoderModel")
_import_structure["models.t5"].extend(
[
"FlaxT5EncoderModel",
"FlaxT5ForConditionalGeneration",
"FlaxT5Model",
"FlaxT5PreTrainedModel",
]
)
_import_structure["models.vision_encoder_decoder"].append("FlaxVisionEncoderDecoderModel")
_import_structure["models.vision_text_dual_encoder"].extend(["FlaxVisionTextDualEncoderModel"])
_import_structure["models.vit"].extend(["FlaxViTForImageClassification", "FlaxViTModel", "FlaxViTPreTrainedModel"])
_import_structure["models.wav2vec2"].extend(
[
"FlaxWav2Vec2ForCTC",
"FlaxWav2Vec2ForPreTraining",
"FlaxWav2Vec2Model",
"FlaxWav2Vec2PreTrainedModel",
]
)
_import_structure["models.whisper"].extend(
[
"FlaxWhisperForConditionalGeneration",
"FlaxWhisperModel",
"FlaxWhisperPreTrainedModel",
"FlaxWhisperForAudioClassification",
]
)
_import_structure["models.xglm"].extend(
[
"FlaxXGLMForCausalLM",
"FlaxXGLMModel",
"FlaxXGLMPreTrainedModel",
]
)
_import_structure["models.xlm_roberta"].extend(
[
"FLAX_XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
"FlaxXLMRobertaForMaskedLM",
"FlaxXLMRobertaForMultipleChoice",
"FlaxXLMRobertaForQuestionAnswering",
"FlaxXLMRobertaForSequenceClassification",
"FlaxXLMRobertaForTokenClassification",
"FlaxXLMRobertaModel",
"FlaxXLMRobertaForCausalLM",
"FlaxXLMRobertaPreTrainedModel",
]
)
# Direct imports for type-checking
if TYPE_CHECKING:
# Configuration
from .configuration_utils import PretrainedConfig
# Data
from .data import (
DataProcessor,
InputExample,
InputFeatures,
SingleSentenceClassificationProcessor,
SquadExample,
SquadFeatures,
SquadV1Processor,
SquadV2Processor,
glue_compute_metrics,
glue_convert_examples_to_features,
glue_output_modes,
glue_processors,
glue_tasks_num_labels,
squad_convert_examples_to_features,
xnli_compute_metrics,
xnli_output_modes,
xnli_processors,
xnli_tasks_num_labels,
)
from .data.data_collator import (
DataCollator,
DataCollatorForLanguageModeling,
DataCollatorForPermutationLanguageModeling,
DataCollatorForSeq2Seq,
DataCollatorForSOP,
DataCollatorForTokenClassification,
DataCollatorForWholeWordMask,
DataCollatorWithPadding,
DefaultDataCollator,
default_data_collator,
)
from .feature_extraction_sequence_utils import SequenceFeatureExtractor
# Feature Extractor
from .feature_extraction_utils import BatchFeature, FeatureExtractionMixin
# Generation
from .generation import GenerationConfig, TextIteratorStreamer, TextStreamer
from .hf_argparser import HfArgumentParser
# Integrations
from .integrations import (
is_clearml_available,
is_comet_available,
is_dvclive_available,
is_neptune_available,
is_optuna_available,
is_ray_available,
is_ray_tune_available,
is_sigopt_available,
is_tensorboard_available,
is_wandb_available,
)
# Model Cards
from .modelcard import ModelCard
# TF 2.0 <=> PyTorch conversion utilities
from .modeling_tf_pytorch_utils import (
convert_tf_weight_name_to_pt_weight_name,
load_pytorch_checkpoint_in_tf2_model,
load_pytorch_model_in_tf2_model,
load_pytorch_weights_in_tf2_model,
load_tf2_checkpoint_in_pytorch_model,
load_tf2_model_in_pytorch_model,
load_tf2_weights_in_pytorch_model,
)
from .models.albert import ALBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, AlbertConfig
from .models.align import (
ALIGN_PRETRAINED_CONFIG_ARCHIVE_MAP,
AlignConfig,
AlignProcessor,
AlignTextConfig,
AlignVisionConfig,
)
from .models.altclip import (
ALTCLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
AltCLIPConfig,
AltCLIPProcessor,
AltCLIPTextConfig,
AltCLIPVisionConfig,
)
from .models.audio_spectrogram_transformer import (
AUDIO_SPECTROGRAM_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
ASTConfig,
ASTFeatureExtractor,
)
from .models.auto import (
ALL_PRETRAINED_CONFIG_ARCHIVE_MAP,
CONFIG_MAPPING,
FEATURE_EXTRACTOR_MAPPING,
IMAGE_PROCESSOR_MAPPING,
MODEL_NAMES_MAPPING,
PROCESSOR_MAPPING,
TOKENIZER_MAPPING,
AutoConfig,
AutoFeatureExtractor,
AutoImageProcessor,
AutoProcessor,
AutoTokenizer,
)
from .models.autoformer import (
AUTOFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
AutoformerConfig,
)
from .models.bark import (
BarkCoarseConfig,
BarkConfig,
BarkFineConfig,
BarkProcessor,
BarkSemanticConfig,
)
from .models.bart import BartConfig, BartTokenizer
from .models.beit import BEIT_PRETRAINED_CONFIG_ARCHIVE_MAP, BeitConfig
from .models.bert import (
BERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
BasicTokenizer,
BertConfig,
BertTokenizer,
WordpieceTokenizer,
)
from .models.bert_generation import BertGenerationConfig
from .models.bert_japanese import (
BertJapaneseTokenizer,
CharacterTokenizer,
MecabTokenizer,
)
from .models.bertweet import BertweetTokenizer
from .models.big_bird import BIG_BIRD_PRETRAINED_CONFIG_ARCHIVE_MAP, BigBirdConfig
from .models.bigbird_pegasus import (
BIGBIRD_PEGASUS_PRETRAINED_CONFIG_ARCHIVE_MAP,
BigBirdPegasusConfig,
)
from .models.biogpt import (
BIOGPT_PRETRAINED_CONFIG_ARCHIVE_MAP,
BioGptConfig,
BioGptTokenizer,
)
from .models.bit import BIT_PRETRAINED_CONFIG_ARCHIVE_MAP, BitConfig
from .models.blenderbot import (
BLENDERBOT_PRETRAINED_CONFIG_ARCHIVE_MAP,
BlenderbotConfig,
BlenderbotTokenizer,
)
from .models.blenderbot_small import (
BLENDERBOT_SMALL_PRETRAINED_CONFIG_ARCHIVE_MAP,
BlenderbotSmallConfig,
BlenderbotSmallTokenizer,
)
from .models.blip import (
BLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
BlipConfig,
BlipProcessor,
BlipTextConfig,
BlipVisionConfig,
)
from .models.blip_2 import (
BLIP_2_PRETRAINED_CONFIG_ARCHIVE_MAP,
Blip2Config,
Blip2Processor,
Blip2QFormerConfig,
Blip2VisionConfig,
)
from .models.bloom import BLOOM_PRETRAINED_CONFIG_ARCHIVE_MAP, BloomConfig
from .models.bridgetower import (
BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP,
BridgeTowerConfig,
BridgeTowerProcessor,
BridgeTowerTextConfig,
BridgeTowerVisionConfig,
)
from .models.bros import (
BROS_PRETRAINED_CONFIG_ARCHIVE_MAP,
BrosConfig,
BrosProcessor,
)
from .models.byt5 import ByT5Tokenizer
from .models.camembert import (
CAMEMBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
CamembertConfig,
)
from .models.canine import (
CANINE_PRETRAINED_CONFIG_ARCHIVE_MAP,
CanineConfig,
CanineTokenizer,
)
from .models.chinese_clip import (
CHINESE_CLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
ChineseCLIPConfig,
ChineseCLIPProcessor,
ChineseCLIPTextConfig,
ChineseCLIPVisionConfig,
)
from .models.clap import (
CLAP_PRETRAINED_MODEL_ARCHIVE_LIST,
ClapAudioConfig,
ClapConfig,
ClapProcessor,
ClapTextConfig,
)
from .models.clip import (
CLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
CLIPConfig,
CLIPProcessor,
CLIPTextConfig,
CLIPTokenizer,
CLIPVisionConfig,
)
from .models.clipseg import (
CLIPSEG_PRETRAINED_CONFIG_ARCHIVE_MAP,
CLIPSegConfig,
CLIPSegProcessor,
CLIPSegTextConfig,
CLIPSegVisionConfig,
)
from .models.clvp import (
CLVP_PRETRAINED_CONFIG_ARCHIVE_MAP,
ClvpConfig,
ClvpDecoderConfig,
ClvpEncoderConfig,
ClvpFeatureExtractor,
ClvpProcessor,
ClvpTokenizer,
)
from .models.codegen import (
CODEGEN_PRETRAINED_CONFIG_ARCHIVE_MAP,
CodeGenConfig,
CodeGenTokenizer,
)
from .models.cohere import COHERE_PRETRAINED_CONFIG_ARCHIVE_MAP, CohereConfig
from .models.conditional_detr import (
CONDITIONAL_DETR_PRETRAINED_CONFIG_ARCHIVE_MAP,
ConditionalDetrConfig,
)
from .models.convbert import (
CONVBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
ConvBertConfig,
ConvBertTokenizer,
)
from .models.convnext import CONVNEXT_PRETRAINED_CONFIG_ARCHIVE_MAP, ConvNextConfig
from .models.convnextv2 import (
CONVNEXTV2_PRETRAINED_CONFIG_ARCHIVE_MAP,
ConvNextV2Config,
)
from .models.cpmant import (
CPMANT_PRETRAINED_CONFIG_ARCHIVE_MAP,
CpmAntConfig,
CpmAntTokenizer,
)
from .models.ctrl import (
CTRL_PRETRAINED_CONFIG_ARCHIVE_MAP,
CTRLConfig,
CTRLTokenizer,
)
from .models.cvt import CVT_PRETRAINED_CONFIG_ARCHIVE_MAP, CvtConfig
from .models.data2vec import (
DATA2VEC_TEXT_PRETRAINED_CONFIG_ARCHIVE_MAP,
DATA2VEC_VISION_PRETRAINED_CONFIG_ARCHIVE_MAP,
Data2VecAudioConfig,
Data2VecTextConfig,
Data2VecVisionConfig,
)
from .models.dbrx import DbrxConfig
from .models.deberta import (
DEBERTA_PRETRAINED_CONFIG_ARCHIVE_MAP,
DebertaConfig,
DebertaTokenizer,
)
from .models.deberta_v2 import (
DEBERTA_V2_PRETRAINED_CONFIG_ARCHIVE_MAP,
DebertaV2Config,
)
from .models.decision_transformer import (
DECISION_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
DecisionTransformerConfig,
)
from .models.deformable_detr import (
DEFORMABLE_DETR_PRETRAINED_CONFIG_ARCHIVE_MAP,
DeformableDetrConfig,
)
from .models.deit import DEIT_PRETRAINED_CONFIG_ARCHIVE_MAP, DeiTConfig
from .models.deprecated.mctct import (
MCTCT_PRETRAINED_CONFIG_ARCHIVE_MAP,
MCTCTConfig,
MCTCTFeatureExtractor,
MCTCTProcessor,
)
from .models.deprecated.mmbt import MMBTConfig
from .models.deprecated.open_llama import (
OPEN_LLAMA_PRETRAINED_CONFIG_ARCHIVE_MAP,
OpenLlamaConfig,
)
from .models.deprecated.retribert import (
RETRIBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
RetriBertConfig,
RetriBertTokenizer,
)
from .models.deprecated.tapex import TapexTokenizer
from .models.deprecated.trajectory_transformer import (
TRAJECTORY_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
TrajectoryTransformerConfig,
)
from .models.deprecated.transfo_xl import (
TRANSFO_XL_PRETRAINED_CONFIG_ARCHIVE_MAP,
TransfoXLConfig,
TransfoXLCorpus,
TransfoXLTokenizer,
)
from .models.deprecated.van import VAN_PRETRAINED_CONFIG_ARCHIVE_MAP, VanConfig
from .models.depth_anything import DEPTH_ANYTHING_PRETRAINED_CONFIG_ARCHIVE_MAP, DepthAnythingConfig
from .models.deta import DETA_PRETRAINED_CONFIG_ARCHIVE_MAP, DetaConfig
from .models.detr import DETR_PRETRAINED_CONFIG_ARCHIVE_MAP, DetrConfig
from .models.dinat import DINAT_PRETRAINED_CONFIG_ARCHIVE_MAP, DinatConfig
from .models.dinov2 import DINOV2_PRETRAINED_CONFIG_ARCHIVE_MAP, Dinov2Config
from .models.distilbert import (
DISTILBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
DistilBertConfig,
DistilBertTokenizer,
)
from .models.donut import (
DONUT_SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP,
DonutProcessor,
DonutSwinConfig,
)
from .models.dpr import (
DPR_PRETRAINED_CONFIG_ARCHIVE_MAP,
DPRConfig,
DPRContextEncoderTokenizer,
DPRQuestionEncoderTokenizer,
DPRReaderOutput,
DPRReaderTokenizer,
)
from .models.dpt import DPT_PRETRAINED_CONFIG_ARCHIVE_MAP, DPTConfig
from .models.efficientformer import (
EFFICIENTFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
EfficientFormerConfig,
)
from .models.efficientnet import (
EFFICIENTNET_PRETRAINED_CONFIG_ARCHIVE_MAP,
EfficientNetConfig,
)
from .models.electra import (
ELECTRA_PRETRAINED_CONFIG_ARCHIVE_MAP,
ElectraConfig,
ElectraTokenizer,
)
from .models.encodec import (
ENCODEC_PRETRAINED_CONFIG_ARCHIVE_MAP,
EncodecConfig,
EncodecFeatureExtractor,
)
from .models.encoder_decoder import EncoderDecoderConfig
from .models.ernie import ERNIE_PRETRAINED_CONFIG_ARCHIVE_MAP, ErnieConfig
from .models.ernie_m import ERNIE_M_PRETRAINED_CONFIG_ARCHIVE_MAP, ErnieMConfig
from .models.esm import ESM_PRETRAINED_CONFIG_ARCHIVE_MAP, EsmConfig, EsmTokenizer
from .models.falcon import FALCON_PRETRAINED_CONFIG_ARCHIVE_MAP, FalconConfig
from .models.fastspeech2_conformer import (
FASTSPEECH2_CONFORMER_HIFIGAN_PRETRAINED_CONFIG_ARCHIVE_MAP,
FASTSPEECH2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
FASTSPEECH2_CONFORMER_WITH_HIFIGAN_PRETRAINED_CONFIG_ARCHIVE_MAP,
FastSpeech2ConformerConfig,
FastSpeech2ConformerHifiGanConfig,
FastSpeech2ConformerTokenizer,
FastSpeech2ConformerWithHifiGanConfig,
)
from .models.flaubert import FLAUBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, FlaubertConfig, FlaubertTokenizer
from .models.flava import (
FLAVA_PRETRAINED_CONFIG_ARCHIVE_MAP,
FlavaConfig,
FlavaImageCodebookConfig,
FlavaImageConfig,
FlavaMultimodalConfig,
FlavaTextConfig,
)
from .models.fnet import FNET_PRETRAINED_CONFIG_ARCHIVE_MAP, FNetConfig
from .models.focalnet import FOCALNET_PRETRAINED_CONFIG_ARCHIVE_MAP, FocalNetConfig
from .models.fsmt import (
FSMT_PRETRAINED_CONFIG_ARCHIVE_MAP,
FSMTConfig,
FSMTTokenizer,
)
from .models.funnel import (
FUNNEL_PRETRAINED_CONFIG_ARCHIVE_MAP,
FunnelConfig,
FunnelTokenizer,
)
from .models.fuyu import FUYU_PRETRAINED_CONFIG_ARCHIVE_MAP, FuyuConfig
from .models.gemma import GEMMA_PRETRAINED_CONFIG_ARCHIVE_MAP, GemmaConfig
from .models.git import (
GIT_PRETRAINED_CONFIG_ARCHIVE_MAP,
GitConfig,
GitProcessor,
GitVisionConfig,
)
from .models.glpn import GLPN_PRETRAINED_CONFIG_ARCHIVE_MAP, GLPNConfig
from .models.gpt2 import (
GPT2_PRETRAINED_CONFIG_ARCHIVE_MAP,
GPT2Config,
GPT2Tokenizer,
)
from .models.gpt_bigcode import (
GPT_BIGCODE_PRETRAINED_CONFIG_ARCHIVE_MAP,
GPTBigCodeConfig,
)
from .models.gpt_neo import GPT_NEO_PRETRAINED_CONFIG_ARCHIVE_MAP, GPTNeoConfig
from .models.gpt_neox import GPT_NEOX_PRETRAINED_CONFIG_ARCHIVE_MAP, GPTNeoXConfig
from .models.gpt_neox_japanese import (
GPT_NEOX_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP,
GPTNeoXJapaneseConfig,
)
from .models.gptj import GPTJ_PRETRAINED_CONFIG_ARCHIVE_MAP, GPTJConfig
from .models.gptsan_japanese import (
GPTSAN_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP,
GPTSanJapaneseConfig,
GPTSanJapaneseTokenizer,
)
from .models.graphormer import GRAPHORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, GraphormerConfig
from .models.grounding_dino import (
GROUNDING_DINO_PRETRAINED_CONFIG_ARCHIVE_MAP,
GroundingDinoConfig,
GroundingDinoProcessor,
)
from .models.groupvit import (
GROUPVIT_PRETRAINED_CONFIG_ARCHIVE_MAP,
GroupViTConfig,
GroupViTTextConfig,
GroupViTVisionConfig,
)
from .models.herbert import HerbertTokenizer
from .models.hubert import HUBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, HubertConfig
from .models.ibert import IBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, IBertConfig
from .models.idefics import (
IDEFICS_PRETRAINED_CONFIG_ARCHIVE_MAP,
IdeficsConfig,
)
from .models.idefics2 import Idefics2Config
from .models.imagegpt import IMAGEGPT_PRETRAINED_CONFIG_ARCHIVE_MAP, ImageGPTConfig
from .models.informer import INFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, InformerConfig
from .models.instructblip import (
INSTRUCTBLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
InstructBlipConfig,
InstructBlipProcessor,
InstructBlipQFormerConfig,
InstructBlipVisionConfig,
)
from .models.jamba import JambaConfig
from .models.jukebox import (
JUKEBOX_PRETRAINED_CONFIG_ARCHIVE_MAP,
JukeboxConfig,
JukeboxPriorConfig,
JukeboxTokenizer,
JukeboxVQVAEConfig,
)
from .models.kosmos2 import (
KOSMOS2_PRETRAINED_CONFIG_ARCHIVE_MAP,
Kosmos2Config,
Kosmos2Processor,
)
from .models.layoutlm import (
LAYOUTLM_PRETRAINED_CONFIG_ARCHIVE_MAP,
LayoutLMConfig,
LayoutLMTokenizer,
)
from .models.layoutlmv2 import (
LAYOUTLMV2_PRETRAINED_CONFIG_ARCHIVE_MAP,
LayoutLMv2Config,
LayoutLMv2FeatureExtractor,
LayoutLMv2ImageProcessor,
LayoutLMv2Processor,
LayoutLMv2Tokenizer,
)
from .models.layoutlmv3 import (
LAYOUTLMV3_PRETRAINED_CONFIG_ARCHIVE_MAP,
LayoutLMv3Config,
LayoutLMv3FeatureExtractor,
LayoutLMv3ImageProcessor,
LayoutLMv3Processor,
LayoutLMv3Tokenizer,
)
from .models.layoutxlm import LayoutXLMProcessor
from .models.led import LED_PRETRAINED_CONFIG_ARCHIVE_MAP, LEDConfig, LEDTokenizer
from .models.levit import LEVIT_PRETRAINED_CONFIG_ARCHIVE_MAP, LevitConfig
from .models.lilt import LILT_PRETRAINED_CONFIG_ARCHIVE_MAP, LiltConfig
from .models.llama import LLAMA_PRETRAINED_CONFIG_ARCHIVE_MAP, LlamaConfig
from .models.llava import (
LLAVA_PRETRAINED_CONFIG_ARCHIVE_MAP,
LlavaConfig,
LlavaProcessor,
)
from .models.llava_next import (
LLAVA_NEXT_PRETRAINED_CONFIG_ARCHIVE_MAP,
LlavaNextConfig,
LlavaNextProcessor,
)
from .models.longformer import (
LONGFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
LongformerConfig,
LongformerTokenizer,
)
from .models.longt5 import LONGT5_PRETRAINED_CONFIG_ARCHIVE_MAP, LongT5Config
from .models.luke import (
LUKE_PRETRAINED_CONFIG_ARCHIVE_MAP,
LukeConfig,
LukeTokenizer,
)
from .models.lxmert import (
LXMERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
LxmertConfig,
LxmertTokenizer,
)
from .models.m2m_100 import M2M_100_PRETRAINED_CONFIG_ARCHIVE_MAP, M2M100Config
from .models.mamba import MAMBA_PRETRAINED_CONFIG_ARCHIVE_MAP, MambaConfig
from .models.marian import MarianConfig
from .models.markuplm import (
MARKUPLM_PRETRAINED_CONFIG_ARCHIVE_MAP,
MarkupLMConfig,
MarkupLMFeatureExtractor,
MarkupLMProcessor,
MarkupLMTokenizer,
)
from .models.mask2former import (
MASK2FORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
Mask2FormerConfig,
)
from .models.maskformer import (
MASKFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
MaskFormerConfig,
MaskFormerSwinConfig,
)
from .models.mbart import MBartConfig
from .models.mega import MEGA_PRETRAINED_CONFIG_ARCHIVE_MAP, MegaConfig
from .models.megatron_bert import (
MEGATRON_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
MegatronBertConfig,
)
from .models.mgp_str import (
MGP_STR_PRETRAINED_CONFIG_ARCHIVE_MAP,
MgpstrConfig,
MgpstrProcessor,
MgpstrTokenizer,
)
from .models.mistral import MISTRAL_PRETRAINED_CONFIG_ARCHIVE_MAP, MistralConfig
from .models.mixtral import MIXTRAL_PRETRAINED_CONFIG_ARCHIVE_MAP, MixtralConfig
from .models.mobilebert import (
MOBILEBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
MobileBertConfig,
MobileBertTokenizer,
)
from .models.mobilenet_v1 import (
MOBILENET_V1_PRETRAINED_CONFIG_ARCHIVE_MAP,
MobileNetV1Config,
)
from .models.mobilenet_v2 import (
MOBILENET_V2_PRETRAINED_CONFIG_ARCHIVE_MAP,
MobileNetV2Config,
)
from .models.mobilevit import (
MOBILEVIT_PRETRAINED_CONFIG_ARCHIVE_MAP,
MobileViTConfig,
)
from .models.mobilevitv2 import (
MOBILEVITV2_PRETRAINED_CONFIG_ARCHIVE_MAP,
MobileViTV2Config,
)
from .models.mpnet import (
MPNET_PRETRAINED_CONFIG_ARCHIVE_MAP,
MPNetConfig,
MPNetTokenizer,
)
from .models.mpt import MPT_PRETRAINED_CONFIG_ARCHIVE_MAP, MptConfig
from .models.mra import MRA_PRETRAINED_CONFIG_ARCHIVE_MAP, MraConfig
from .models.mt5 import MT5Config
from .models.musicgen import (
MUSICGEN_PRETRAINED_CONFIG_ARCHIVE_MAP,
MusicgenConfig,
MusicgenDecoderConfig,
)
from .models.musicgen_melody import (
MUSICGEN_MELODY_PRETRAINED_MODEL_ARCHIVE_LIST,
MusicgenMelodyConfig,
MusicgenMelodyDecoderConfig,
)
from .models.mvp import MvpConfig, MvpTokenizer
from .models.nat import NAT_PRETRAINED_CONFIG_ARCHIVE_MAP, NatConfig
from .models.nezha import NEZHA_PRETRAINED_CONFIG_ARCHIVE_MAP, NezhaConfig
from .models.nllb_moe import NLLB_MOE_PRETRAINED_CONFIG_ARCHIVE_MAP, NllbMoeConfig
from .models.nougat import NougatProcessor
from .models.nystromformer import (
NYSTROMFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
NystromformerConfig,
)
from .models.olmo import OLMO_PRETRAINED_CONFIG_ARCHIVE_MAP, OlmoConfig
from .models.oneformer import (
ONEFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
OneFormerConfig,
OneFormerProcessor,
)
from .models.openai import (
OPENAI_GPT_PRETRAINED_CONFIG_ARCHIVE_MAP,
OpenAIGPTConfig,
OpenAIGPTTokenizer,
)
from .models.opt import OPTConfig
from .models.owlv2 import (
OWLV2_PRETRAINED_CONFIG_ARCHIVE_MAP,
Owlv2Config,
Owlv2Processor,
Owlv2TextConfig,
Owlv2VisionConfig,
)
from .models.owlvit import (
OWLVIT_PRETRAINED_CONFIG_ARCHIVE_MAP,
OwlViTConfig,
OwlViTProcessor,
OwlViTTextConfig,
OwlViTVisionConfig,
)
from .models.patchtsmixer import (
PATCHTSMIXER_PRETRAINED_CONFIG_ARCHIVE_MAP,
PatchTSMixerConfig,
)
from .models.patchtst import PATCHTST_PRETRAINED_CONFIG_ARCHIVE_MAP, PatchTSTConfig
from .models.pegasus import (
PEGASUS_PRETRAINED_CONFIG_ARCHIVE_MAP,
PegasusConfig,
PegasusTokenizer,
)
from .models.pegasus_x import (
PEGASUS_X_PRETRAINED_CONFIG_ARCHIVE_MAP,
PegasusXConfig,
)
from .models.perceiver import (
PERCEIVER_PRETRAINED_CONFIG_ARCHIVE_MAP,
PerceiverConfig,
PerceiverTokenizer,
)
from .models.persimmon import (
PERSIMMON_PRETRAINED_CONFIG_ARCHIVE_MAP,
PersimmonConfig,
)
from .models.phi import PHI_PRETRAINED_CONFIG_ARCHIVE_MAP, PhiConfig
from .models.phi3 import PHI3_PRETRAINED_CONFIG_ARCHIVE_MAP, Phi3Config
from .models.phobert import PhobertTokenizer
from .models.pix2struct import (
PIX2STRUCT_PRETRAINED_CONFIG_ARCHIVE_MAP,
Pix2StructConfig,
Pix2StructProcessor,
Pix2StructTextConfig,
Pix2StructVisionConfig,
)
from .models.plbart import PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP, PLBartConfig
from .models.poolformer import (
POOLFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
PoolFormerConfig,
)
from .models.pop2piano import (
POP2PIANO_PRETRAINED_CONFIG_ARCHIVE_MAP,
Pop2PianoConfig,
)
from .models.prophetnet import (
PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP,
ProphetNetConfig,
ProphetNetTokenizer,
)
from .models.pvt import PVT_PRETRAINED_CONFIG_ARCHIVE_MAP, PvtConfig
from .models.pvt_v2 import PvtV2Config
from .models.qdqbert import QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, QDQBertConfig
from .models.qwen2 import QWEN2_PRETRAINED_CONFIG_ARCHIVE_MAP, Qwen2Config, Qwen2Tokenizer
from .models.qwen2_moe import QWEN2MOE_PRETRAINED_CONFIG_ARCHIVE_MAP, Qwen2MoeConfig
from .models.rag import RagConfig, RagRetriever, RagTokenizer
from .models.realm import (
REALM_PRETRAINED_CONFIG_ARCHIVE_MAP,
RealmConfig,
RealmTokenizer,
)
from .models.recurrent_gemma import RecurrentGemmaConfig
from .models.reformer import REFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, ReformerConfig
from .models.regnet import REGNET_PRETRAINED_CONFIG_ARCHIVE_MAP, RegNetConfig
from .models.rembert import REMBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, RemBertConfig
from .models.resnet import RESNET_PRETRAINED_CONFIG_ARCHIVE_MAP, ResNetConfig
from .models.roberta import (
ROBERTA_PRETRAINED_CONFIG_ARCHIVE_MAP,
RobertaConfig,
RobertaTokenizer,
)
from .models.roberta_prelayernorm import (
ROBERTA_PRELAYERNORM_PRETRAINED_CONFIG_ARCHIVE_MAP,
RobertaPreLayerNormConfig,
)
from .models.roc_bert import (
ROC_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
RoCBertConfig,
RoCBertTokenizer,
)
from .models.roformer import (
ROFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
RoFormerConfig,
RoFormerTokenizer,
)
from .models.rwkv import RWKV_PRETRAINED_CONFIG_ARCHIVE_MAP, RwkvConfig
from .models.sam import (
SAM_PRETRAINED_CONFIG_ARCHIVE_MAP,
SamConfig,
SamMaskDecoderConfig,
SamProcessor,
SamPromptEncoderConfig,
SamVisionConfig,
)
from .models.seamless_m4t import (
SEAMLESS_M4T_PRETRAINED_CONFIG_ARCHIVE_MAP,
SeamlessM4TConfig,
SeamlessM4TFeatureExtractor,
SeamlessM4TProcessor,
)
from .models.seamless_m4t_v2 import (
SEAMLESS_M4T_V2_PRETRAINED_CONFIG_ARCHIVE_MAP,
SeamlessM4Tv2Config,
)
from .models.segformer import SEGFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, SegformerConfig
from .models.seggpt import SEGGPT_PRETRAINED_CONFIG_ARCHIVE_MAP, SegGptConfig
from .models.sew import SEW_PRETRAINED_CONFIG_ARCHIVE_MAP, SEWConfig
from .models.sew_d import SEW_D_PRETRAINED_CONFIG_ARCHIVE_MAP, SEWDConfig
from .models.siglip import (
SIGLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
SiglipConfig,
SiglipProcessor,
SiglipTextConfig,
SiglipVisionConfig,
)
from .models.speech_encoder_decoder import SpeechEncoderDecoderConfig
from .models.speech_to_text import (
SPEECH_TO_TEXT_PRETRAINED_CONFIG_ARCHIVE_MAP,
Speech2TextConfig,
Speech2TextFeatureExtractor,
Speech2TextProcessor,
)
from .models.speech_to_text_2 import (
SPEECH_TO_TEXT_2_PRETRAINED_CONFIG_ARCHIVE_MAP,
Speech2Text2Config,
Speech2Text2Processor,
Speech2Text2Tokenizer,
)
from .models.speecht5 import (
SPEECHT5_PRETRAINED_CONFIG_ARCHIVE_MAP,
SPEECHT5_PRETRAINED_HIFIGAN_CONFIG_ARCHIVE_MAP,
SpeechT5Config,
SpeechT5FeatureExtractor,
SpeechT5HifiGanConfig,
SpeechT5Processor,
)
from .models.splinter import (
SPLINTER_PRETRAINED_CONFIG_ARCHIVE_MAP,
SplinterConfig,
SplinterTokenizer,
)
from .models.squeezebert import (
SQUEEZEBERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
SqueezeBertConfig,
SqueezeBertTokenizer,
)
from .models.stablelm import STABLELM_PRETRAINED_CONFIG_ARCHIVE_MAP, StableLmConfig
from .models.starcoder2 import STARCODER2_PRETRAINED_CONFIG_ARCHIVE_MAP, Starcoder2Config
from .models.superpoint import SUPERPOINT_PRETRAINED_CONFIG_ARCHIVE_MAP, SuperPointConfig
from .models.swiftformer import (
SWIFTFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
SwiftFormerConfig,
)
from .models.swin import SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP, SwinConfig
from .models.swin2sr import SWIN2SR_PRETRAINED_CONFIG_ARCHIVE_MAP, Swin2SRConfig
from .models.swinv2 import SWINV2_PRETRAINED_CONFIG_ARCHIVE_MAP, Swinv2Config
from .models.switch_transformers import (
SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP,
SwitchTransformersConfig,
)
from .models.t5 import T5_PRETRAINED_CONFIG_ARCHIVE_MAP, T5Config
from .models.table_transformer import (
TABLE_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
TableTransformerConfig,
)
from .models.tapas import (
TAPAS_PRETRAINED_CONFIG_ARCHIVE_MAP,
TapasConfig,
TapasTokenizer,
)
from .models.time_series_transformer import (
TIME_SERIES_TRANSFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
TimeSeriesTransformerConfig,
)
from .models.timesformer import (
TIMESFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
TimesformerConfig,
)
from .models.timm_backbone import TimmBackboneConfig
from .models.trocr import (
TROCR_PRETRAINED_CONFIG_ARCHIVE_MAP,
TrOCRConfig,
TrOCRProcessor,
)
from .models.tvlt import (
TVLT_PRETRAINED_CONFIG_ARCHIVE_MAP,
TvltConfig,
TvltFeatureExtractor,
TvltProcessor,
)
from .models.tvp import (
TVP_PRETRAINED_CONFIG_ARCHIVE_MAP,
TvpConfig,
TvpProcessor,
)
from .models.udop import UDOP_PRETRAINED_CONFIG_ARCHIVE_MAP, UdopConfig, UdopProcessor
from .models.umt5 import UMT5Config
from .models.unispeech import (
UNISPEECH_PRETRAINED_CONFIG_ARCHIVE_MAP,
UniSpeechConfig,
)
from .models.unispeech_sat import (
UNISPEECH_SAT_PRETRAINED_CONFIG_ARCHIVE_MAP,
UniSpeechSatConfig,
)
from .models.univnet import (
UNIVNET_PRETRAINED_CONFIG_ARCHIVE_MAP,
UnivNetConfig,
UnivNetFeatureExtractor,
)
from .models.upernet import UperNetConfig
from .models.videomae import VIDEOMAE_PRETRAINED_CONFIG_ARCHIVE_MAP, VideoMAEConfig
from .models.vilt import (
VILT_PRETRAINED_CONFIG_ARCHIVE_MAP,
ViltConfig,
ViltFeatureExtractor,
ViltImageProcessor,
ViltProcessor,
)
from .models.vipllava import (
VIPLLAVA_PRETRAINED_CONFIG_ARCHIVE_MAP,
VipLlavaConfig,
)
from .models.vision_encoder_decoder import VisionEncoderDecoderConfig
from .models.vision_text_dual_encoder import (
VisionTextDualEncoderConfig,
VisionTextDualEncoderProcessor,
)
from .models.visual_bert import (
VISUAL_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
VisualBertConfig,
)
from .models.vit import VIT_PRETRAINED_CONFIG_ARCHIVE_MAP, ViTConfig
from .models.vit_hybrid import (
VIT_HYBRID_PRETRAINED_CONFIG_ARCHIVE_MAP,
ViTHybridConfig,
)
from .models.vit_mae import VIT_MAE_PRETRAINED_CONFIG_ARCHIVE_MAP, ViTMAEConfig
from .models.vit_msn import VIT_MSN_PRETRAINED_CONFIG_ARCHIVE_MAP, ViTMSNConfig
from .models.vitdet import VITDET_PRETRAINED_CONFIG_ARCHIVE_MAP, VitDetConfig
from .models.vitmatte import VITMATTE_PRETRAINED_CONFIG_ARCHIVE_MAP, VitMatteConfig
from .models.vits import (
VITS_PRETRAINED_CONFIG_ARCHIVE_MAP,
VitsConfig,
VitsTokenizer,
)
from .models.vivit import VIVIT_PRETRAINED_CONFIG_ARCHIVE_MAP, VivitConfig
from .models.wav2vec2 import (
WAV_2_VEC_2_PRETRAINED_CONFIG_ARCHIVE_MAP,
Wav2Vec2Config,
Wav2Vec2CTCTokenizer,
Wav2Vec2FeatureExtractor,
Wav2Vec2Processor,
Wav2Vec2Tokenizer,
)
from .models.wav2vec2_bert import (
WAV2VEC2_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP,
Wav2Vec2BertConfig,
Wav2Vec2BertProcessor,
)
from .models.wav2vec2_conformer import (
WAV2VEC2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
Wav2Vec2ConformerConfig,
)
from .models.wav2vec2_phoneme import Wav2Vec2PhonemeCTCTokenizer
from .models.wav2vec2_with_lm import Wav2Vec2ProcessorWithLM
from .models.wavlm import WAVLM_PRETRAINED_CONFIG_ARCHIVE_MAP, WavLMConfig
from .models.whisper import (
WHISPER_PRETRAINED_CONFIG_ARCHIVE_MAP,
WhisperConfig,
WhisperFeatureExtractor,
WhisperProcessor,
WhisperTokenizer,
)
from .models.x_clip import (
XCLIP_PRETRAINED_CONFIG_ARCHIVE_MAP,
XCLIPConfig,
XCLIPProcessor,
XCLIPTextConfig,
XCLIPVisionConfig,
)
from .models.xglm import XGLM_PRETRAINED_CONFIG_ARCHIVE_MAP, XGLMConfig
from .models.xlm import XLM_PRETRAINED_CONFIG_ARCHIVE_MAP, XLMConfig, XLMTokenizer
from .models.xlm_prophetnet import (
XLM_PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP,
XLMProphetNetConfig,
)
from .models.xlm_roberta import (
XLM_ROBERTA_PRETRAINED_CONFIG_ARCHIVE_MAP,
XLMRobertaConfig,
)
from .models.xlm_roberta_xl import (
XLM_ROBERTA_XL_PRETRAINED_CONFIG_ARCHIVE_MAP,
XLMRobertaXLConfig,
)
from .models.xlnet import XLNET_PRETRAINED_CONFIG_ARCHIVE_MAP, XLNetConfig
from .models.xmod import XMOD_PRETRAINED_CONFIG_ARCHIVE_MAP, XmodConfig
from .models.yolos import YOLOS_PRETRAINED_CONFIG_ARCHIVE_MAP, YolosConfig
from .models.yoso import YOSO_PRETRAINED_CONFIG_ARCHIVE_MAP, YosoConfig
# Pipelines
from .pipelines import (
AudioClassificationPipeline,
AutomaticSpeechRecognitionPipeline,
Conversation,
ConversationalPipeline,
CsvPipelineDataFormat,
DepthEstimationPipeline,
DocumentQuestionAnsweringPipeline,
FeatureExtractionPipeline,
FillMaskPipeline,
ImageClassificationPipeline,
ImageFeatureExtractionPipeline,
ImageSegmentationPipeline,
ImageToImagePipeline,
ImageToTextPipeline,
JsonPipelineDataFormat,
MaskGenerationPipeline,
NerPipeline,
ObjectDetectionPipeline,
PipedPipelineDataFormat,
Pipeline,
PipelineDataFormat,
QuestionAnsweringPipeline,
SummarizationPipeline,
TableQuestionAnsweringPipeline,
Text2TextGenerationPipeline,
TextClassificationPipeline,
TextGenerationPipeline,
TextToAudioPipeline,
TokenClassificationPipeline,
TranslationPipeline,
VideoClassificationPipeline,
VisualQuestionAnsweringPipeline,
ZeroShotAudioClassificationPipeline,
ZeroShotClassificationPipeline,
ZeroShotImageClassificationPipeline,
ZeroShotObjectDetectionPipeline,
pipeline,
)
from .processing_utils import ProcessorMixin
# Tokenization
from .tokenization_utils import PreTrainedTokenizer
from .tokenization_utils_base import (
AddedToken,
BatchEncoding,
CharSpan,
PreTrainedTokenizerBase,
SpecialTokensMixin,
TokenSpan,
)
# Tools
from .tools import (
Agent,
AzureOpenAiAgent,
HfAgent,
LocalAgent,
OpenAiAgent,
PipelineTool,
RemoteTool,
Tool,
launch_gradio_demo,
load_tool,
)
# Trainer
from .trainer_callback import (
DefaultFlowCallback,
EarlyStoppingCallback,
PrinterCallback,
ProgressCallback,
TrainerCallback,
TrainerControl,
TrainerState,
)
from .trainer_utils import (
EvalPrediction,
IntervalStrategy,
SchedulerType,
enable_full_determinism,
set_seed,
)
from .training_args import TrainingArguments
from .training_args_seq2seq import Seq2SeqTrainingArguments
from .training_args_tf import TFTrainingArguments
# Files and general utilities
from .utils import (
CONFIG_NAME,
MODEL_CARD_NAME,
PYTORCH_PRETRAINED_BERT_CACHE,
PYTORCH_TRANSFORMERS_CACHE,
SPIECE_UNDERLINE,
TF2_WEIGHTS_NAME,
TF_WEIGHTS_NAME,
TRANSFORMERS_CACHE,
WEIGHTS_NAME,
TensorType,
add_end_docstrings,
add_start_docstrings,
is_apex_available,
is_av_available,
is_bitsandbytes_available,
is_datasets_available,
is_decord_available,
is_faiss_available,
is_flax_available,
is_keras_nlp_available,
is_phonemizer_available,
is_psutil_available,
is_py3nvml_available,
is_pyctcdecode_available,
is_sacremoses_available,
is_safetensors_available,
is_scipy_available,
is_sentencepiece_available,
is_sklearn_available,
is_speech_available,
is_tensorflow_text_available,
is_tf_available,
is_timm_available,
is_tokenizers_available,
is_torch_available,
is_torch_mlu_available,
is_torch_neuroncore_available,
is_torch_npu_available,
is_torch_tpu_available,
is_torch_xla_available,
is_torch_xpu_available,
is_torchvision_available,
is_vision_available,
logging,
)
# bitsandbytes config
from .utils.quantization_config import (
AqlmConfig,
AwqConfig,
BitsAndBytesConfig,
EetqConfig,
GPTQConfig,
HqqConfig,
QuantoConfig,
)
try:
if not is_sentencepiece_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_sentencepiece_objects import *
else:
from .models.albert import AlbertTokenizer
from .models.barthez import BarthezTokenizer
from .models.bartpho import BartphoTokenizer
from .models.bert_generation import BertGenerationTokenizer
from .models.big_bird import BigBirdTokenizer
from .models.camembert import CamembertTokenizer
from .models.code_llama import CodeLlamaTokenizer
from .models.cpm import CpmTokenizer
from .models.deberta_v2 import DebertaV2Tokenizer
from .models.ernie_m import ErnieMTokenizer
from .models.fnet import FNetTokenizer
from .models.gemma import GemmaTokenizer
from .models.gpt_sw3 import GPTSw3Tokenizer
from .models.layoutxlm import LayoutXLMTokenizer
from .models.llama import LlamaTokenizer
from .models.m2m_100 import M2M100Tokenizer
from .models.marian import MarianTokenizer
from .models.mbart import MBart50Tokenizer, MBartTokenizer
from .models.mluke import MLukeTokenizer
from .models.mt5 import MT5Tokenizer
from .models.nllb import NllbTokenizer
from .models.pegasus import PegasusTokenizer
from .models.plbart import PLBartTokenizer
from .models.reformer import ReformerTokenizer
from .models.rembert import RemBertTokenizer
from .models.seamless_m4t import SeamlessM4TTokenizer
from .models.siglip import SiglipTokenizer
from .models.speech_to_text import Speech2TextTokenizer
from .models.speecht5 import SpeechT5Tokenizer
from .models.t5 import T5Tokenizer
from .models.udop import UdopTokenizer
from .models.xglm import XGLMTokenizer
from .models.xlm_prophetnet import XLMProphetNetTokenizer
from .models.xlm_roberta import XLMRobertaTokenizer
from .models.xlnet import XLNetTokenizer
try:
if not is_tokenizers_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_tokenizers_objects import *
else:
# Fast tokenizers imports
from .models.albert import AlbertTokenizerFast
from .models.bart import BartTokenizerFast
from .models.barthez import BarthezTokenizerFast
from .models.bert import BertTokenizerFast
from .models.big_bird import BigBirdTokenizerFast
from .models.blenderbot import BlenderbotTokenizerFast
from .models.blenderbot_small import BlenderbotSmallTokenizerFast
from .models.bloom import BloomTokenizerFast
from .models.camembert import CamembertTokenizerFast
from .models.clip import CLIPTokenizerFast
from .models.code_llama import CodeLlamaTokenizerFast
from .models.codegen import CodeGenTokenizerFast
from .models.cohere import CohereTokenizerFast
from .models.convbert import ConvBertTokenizerFast
from .models.cpm import CpmTokenizerFast
from .models.deberta import DebertaTokenizerFast
from .models.deberta_v2 import DebertaV2TokenizerFast
from .models.deprecated.retribert import RetriBertTokenizerFast
from .models.distilbert import DistilBertTokenizerFast
from .models.dpr import (
DPRContextEncoderTokenizerFast,
DPRQuestionEncoderTokenizerFast,
DPRReaderTokenizerFast,
)
from .models.electra import ElectraTokenizerFast
from .models.fnet import FNetTokenizerFast
from .models.funnel import FunnelTokenizerFast
from .models.gemma import GemmaTokenizerFast
from .models.gpt2 import GPT2TokenizerFast
from .models.gpt_neox import GPTNeoXTokenizerFast
from .models.gpt_neox_japanese import GPTNeoXJapaneseTokenizer
from .models.herbert import HerbertTokenizerFast
from .models.layoutlm import LayoutLMTokenizerFast
from .models.layoutlmv2 import LayoutLMv2TokenizerFast
from .models.layoutlmv3 import LayoutLMv3TokenizerFast
from .models.layoutxlm import LayoutXLMTokenizerFast
from .models.led import LEDTokenizerFast
from .models.llama import LlamaTokenizerFast
from .models.longformer import LongformerTokenizerFast
from .models.lxmert import LxmertTokenizerFast
from .models.markuplm import MarkupLMTokenizerFast
from .models.mbart import MBartTokenizerFast
from .models.mbart50 import MBart50TokenizerFast
from .models.mobilebert import MobileBertTokenizerFast
from .models.mpnet import MPNetTokenizerFast
from .models.mt5 import MT5TokenizerFast
from .models.mvp import MvpTokenizerFast
from .models.nllb import NllbTokenizerFast
from .models.nougat import NougatTokenizerFast
from .models.openai import OpenAIGPTTokenizerFast
from .models.pegasus import PegasusTokenizerFast
from .models.qwen2 import Qwen2TokenizerFast
from .models.realm import RealmTokenizerFast
from .models.reformer import ReformerTokenizerFast
from .models.rembert import RemBertTokenizerFast
from .models.roberta import RobertaTokenizerFast
from .models.roformer import RoFormerTokenizerFast
from .models.seamless_m4t import SeamlessM4TTokenizerFast
from .models.splinter import SplinterTokenizerFast
from .models.squeezebert import SqueezeBertTokenizerFast
from .models.t5 import T5TokenizerFast
from .models.udop import UdopTokenizerFast
from .models.whisper import WhisperTokenizerFast
from .models.xglm import XGLMTokenizerFast
from .models.xlm_roberta import XLMRobertaTokenizerFast
from .models.xlnet import XLNetTokenizerFast
from .tokenization_utils_fast import PreTrainedTokenizerFast
try:
if not (is_sentencepiece_available() and is_tokenizers_available()):
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummies_sentencepiece_and_tokenizers_objects import *
else:
from .convert_slow_tokenizer import (
SLOW_TO_FAST_CONVERTERS,
convert_slow_tokenizer,
)
try:
if not is_tensorflow_text_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_tensorflow_text_objects import *
else:
from .models.bert import TFBertTokenizer
try:
if not is_keras_nlp_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_keras_nlp_objects import *
else:
from .models.gpt2 import TFGPT2Tokenizer
try:
if not is_vision_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_vision_objects import *
else:
from .image_processing_utils import ImageProcessingMixin
from .image_utils import ImageFeatureExtractionMixin
from .models.beit import BeitFeatureExtractor, BeitImageProcessor
from .models.bit import BitImageProcessor
from .models.blip import BlipImageProcessor
from .models.bridgetower import BridgeTowerImageProcessor
from .models.chinese_clip import (
ChineseCLIPFeatureExtractor,
ChineseCLIPImageProcessor,
)
from .models.clip import CLIPFeatureExtractor, CLIPImageProcessor
from .models.conditional_detr import (
ConditionalDetrFeatureExtractor,
ConditionalDetrImageProcessor,
)
from .models.convnext import ConvNextFeatureExtractor, ConvNextImageProcessor
from .models.deformable_detr import (
DeformableDetrFeatureExtractor,
DeformableDetrImageProcessor,
)
from .models.deit import DeiTFeatureExtractor, DeiTImageProcessor
from .models.deta import DetaImageProcessor
from .models.detr import DetrFeatureExtractor, DetrImageProcessor
from .models.donut import DonutFeatureExtractor, DonutImageProcessor
from .models.dpt import DPTFeatureExtractor, DPTImageProcessor
from .models.efficientformer import EfficientFormerImageProcessor
from .models.efficientnet import EfficientNetImageProcessor
from .models.flava import (
FlavaFeatureExtractor,
FlavaImageProcessor,
FlavaProcessor,
)
from .models.fuyu import FuyuImageProcessor, FuyuProcessor
from .models.glpn import GLPNFeatureExtractor, GLPNImageProcessor
from .models.grounding_dino import GroundingDinoImageProcessor
from .models.idefics import IdeficsImageProcessor
from .models.idefics2 import Idefics2ImageProcessor
from .models.imagegpt import ImageGPTFeatureExtractor, ImageGPTImageProcessor
from .models.layoutlmv2 import (
LayoutLMv2FeatureExtractor,
LayoutLMv2ImageProcessor,
)
from .models.layoutlmv3 import (
LayoutLMv3FeatureExtractor,
LayoutLMv3ImageProcessor,
)
from .models.levit import LevitFeatureExtractor, LevitImageProcessor
from .models.llava_next import LlavaNextImageProcessor
from .models.mask2former import Mask2FormerImageProcessor
from .models.maskformer import (
MaskFormerFeatureExtractor,
MaskFormerImageProcessor,
)
from .models.mobilenet_v1 import (
MobileNetV1FeatureExtractor,
MobileNetV1ImageProcessor,
)
from .models.mobilenet_v2 import (
MobileNetV2FeatureExtractor,
MobileNetV2ImageProcessor,
)
from .models.mobilevit import MobileViTFeatureExtractor, MobileViTImageProcessor
from .models.nougat import NougatImageProcessor
from .models.oneformer import OneFormerImageProcessor
from .models.owlv2 import Owlv2ImageProcessor
from .models.owlvit import OwlViTFeatureExtractor, OwlViTImageProcessor
from .models.perceiver import PerceiverFeatureExtractor, PerceiverImageProcessor
from .models.pix2struct import Pix2StructImageProcessor
from .models.poolformer import (
PoolFormerFeatureExtractor,
PoolFormerImageProcessor,
)
from .models.pvt import PvtImageProcessor
from .models.sam import SamImageProcessor
from .models.segformer import SegformerFeatureExtractor, SegformerImageProcessor
from .models.seggpt import SegGptImageProcessor
from .models.siglip import SiglipImageProcessor
from .models.superpoint import SuperPointImageProcessor
from .models.swin2sr import Swin2SRImageProcessor
from .models.tvlt import TvltImageProcessor
from .models.tvp import TvpImageProcessor
from .models.videomae import VideoMAEFeatureExtractor, VideoMAEImageProcessor
from .models.vilt import ViltFeatureExtractor, ViltImageProcessor, ViltProcessor
from .models.vit import ViTFeatureExtractor, ViTImageProcessor
from .models.vit_hybrid import ViTHybridImageProcessor
from .models.vitmatte import VitMatteImageProcessor
from .models.vivit import VivitImageProcessor
from .models.yolos import YolosFeatureExtractor, YolosImageProcessor
# Modeling
try:
if not is_torch_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_pt_objects import *
else:
# Benchmarks
from .benchmark.benchmark import PyTorchBenchmark
from .benchmark.benchmark_args import PyTorchBenchmarkArguments
from .cache_utils import Cache, DynamicCache, SinkCache, StaticCache
from .data.datasets import (
GlueDataset,
GlueDataTrainingArguments,
LineByLineTextDataset,
LineByLineWithRefDataset,
LineByLineWithSOPTextDataset,
SquadDataset,
SquadDataTrainingArguments,
TextDataset,
TextDatasetForNextSentencePrediction,
)
from .generation import (
AlternatingCodebooksLogitsProcessor,
BeamScorer,
BeamSearchScorer,
ClassifierFreeGuidanceLogitsProcessor,
ConstrainedBeamSearchScorer,
Constraint,
ConstraintListState,
DisjunctiveConstraint,
EncoderNoRepeatNGramLogitsProcessor,
EncoderRepetitionPenaltyLogitsProcessor,
EosTokenCriteria,
EpsilonLogitsWarper,
EtaLogitsWarper,
ExponentialDecayLengthPenalty,
ForcedBOSTokenLogitsProcessor,
ForcedEOSTokenLogitsProcessor,
ForceTokensLogitsProcessor,
GenerationMixin,
HammingDiversityLogitsProcessor,
InfNanRemoveLogitsProcessor,
LogitNormalization,
LogitsProcessor,
LogitsProcessorList,
LogitsWarper,
MaxLengthCriteria,
MaxTimeCriteria,
MinLengthLogitsProcessor,
MinNewTokensLengthLogitsProcessor,
NoBadWordsLogitsProcessor,
NoRepeatNGramLogitsProcessor,
PhrasalConstraint,
PrefixConstrainedLogitsProcessor,
RepetitionPenaltyLogitsProcessor,
SequenceBiasLogitsProcessor,
StoppingCriteria,
StoppingCriteriaList,
StopStringCriteria,
SuppressTokensAtBeginLogitsProcessor,
SuppressTokensLogitsProcessor,
TemperatureLogitsWarper,
TopKLogitsWarper,
TopPLogitsWarper,
TypicalLogitsWarper,
UnbatchedClassifierFreeGuidanceLogitsProcessor,
WhisperTimeStampLogitsProcessor,
)
from .modeling_utils import PreTrainedModel
from .models.albert import (
ALBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
AlbertForMaskedLM,
AlbertForMultipleChoice,
AlbertForPreTraining,
AlbertForQuestionAnswering,
AlbertForSequenceClassification,
AlbertForTokenClassification,
AlbertModel,
AlbertPreTrainedModel,
load_tf_weights_in_albert,
)
from .models.align import (
ALIGN_PRETRAINED_MODEL_ARCHIVE_LIST,
AlignModel,
AlignPreTrainedModel,
AlignTextModel,
AlignVisionModel,
)
from .models.altclip import (
ALTCLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
AltCLIPModel,
AltCLIPPreTrainedModel,
AltCLIPTextModel,
AltCLIPVisionModel,
)
from .models.audio_spectrogram_transformer import (
AUDIO_SPECTROGRAM_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
ASTForAudioClassification,
ASTModel,
ASTPreTrainedModel,
)
from .models.auto import (
MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING,
MODEL_FOR_AUDIO_FRAME_CLASSIFICATION_MAPPING,
MODEL_FOR_AUDIO_XVECTOR_MAPPING,
MODEL_FOR_BACKBONE_MAPPING,
MODEL_FOR_CAUSAL_IMAGE_MODELING_MAPPING,
MODEL_FOR_CAUSAL_LM_MAPPING,
MODEL_FOR_CTC_MAPPING,
MODEL_FOR_DEPTH_ESTIMATION_MAPPING,
MODEL_FOR_DOCUMENT_QUESTION_ANSWERING_MAPPING,
MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING,
MODEL_FOR_IMAGE_MAPPING,
MODEL_FOR_IMAGE_SEGMENTATION_MAPPING,
MODEL_FOR_IMAGE_TO_IMAGE_MAPPING,
MODEL_FOR_INSTANCE_SEGMENTATION_MAPPING,
MODEL_FOR_KEYPOINT_DETECTION_MAPPING,
MODEL_FOR_MASK_GENERATION_MAPPING,
MODEL_FOR_MASKED_IMAGE_MODELING_MAPPING,
MODEL_FOR_MASKED_LM_MAPPING,
MODEL_FOR_MULTIPLE_CHOICE_MAPPING,
MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING,
MODEL_FOR_OBJECT_DETECTION_MAPPING,
MODEL_FOR_PRETRAINING_MAPPING,
MODEL_FOR_QUESTION_ANSWERING_MAPPING,
MODEL_FOR_SEMANTIC_SEGMENTATION_MAPPING,
MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING,
MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING,
MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING,
MODEL_FOR_TEXT_ENCODING_MAPPING,
MODEL_FOR_TEXT_TO_SPECTROGRAM_MAPPING,
MODEL_FOR_TEXT_TO_WAVEFORM_MAPPING,
MODEL_FOR_TIME_SERIES_CLASSIFICATION_MAPPING,
MODEL_FOR_TIME_SERIES_REGRESSION_MAPPING,
MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING,
MODEL_FOR_UNIVERSAL_SEGMENTATION_MAPPING,
MODEL_FOR_VIDEO_CLASSIFICATION_MAPPING,
MODEL_FOR_VISION_2_SEQ_MAPPING,
MODEL_FOR_VISUAL_QUESTION_ANSWERING_MAPPING,
MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING,
MODEL_FOR_ZERO_SHOT_OBJECT_DETECTION_MAPPING,
MODEL_MAPPING,
MODEL_WITH_LM_HEAD_MAPPING,
AutoBackbone,
AutoModel,
AutoModelForAudioClassification,
AutoModelForAudioFrameClassification,
AutoModelForAudioXVector,
AutoModelForCausalLM,
AutoModelForCTC,
AutoModelForDepthEstimation,
AutoModelForDocumentQuestionAnswering,
AutoModelForImageClassification,
AutoModelForImageSegmentation,
AutoModelForImageToImage,
AutoModelForInstanceSegmentation,
AutoModelForKeypointDetection,
AutoModelForMaskedImageModeling,
AutoModelForMaskedLM,
AutoModelForMaskGeneration,
AutoModelForMultipleChoice,
AutoModelForNextSentencePrediction,
AutoModelForObjectDetection,
AutoModelForPreTraining,
AutoModelForQuestionAnswering,
AutoModelForSemanticSegmentation,
AutoModelForSeq2SeqLM,
AutoModelForSequenceClassification,
AutoModelForSpeechSeq2Seq,
AutoModelForTableQuestionAnswering,
AutoModelForTextEncoding,
AutoModelForTextToSpectrogram,
AutoModelForTextToWaveform,
AutoModelForTokenClassification,
AutoModelForUniversalSegmentation,
AutoModelForVideoClassification,
AutoModelForVision2Seq,
AutoModelForVisualQuestionAnswering,
AutoModelForZeroShotImageClassification,
AutoModelForZeroShotObjectDetection,
AutoModelWithLMHead,
)
from .models.autoformer import (
AUTOFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
AutoformerForPrediction,
AutoformerModel,
AutoformerPreTrainedModel,
)
from .models.bark import (
BARK_PRETRAINED_MODEL_ARCHIVE_LIST,
BarkCausalModel,
BarkCoarseModel,
BarkFineModel,
BarkModel,
BarkPreTrainedModel,
BarkSemanticModel,
)
from .models.bart import (
BART_PRETRAINED_MODEL_ARCHIVE_LIST,
BartForCausalLM,
BartForConditionalGeneration,
BartForQuestionAnswering,
BartForSequenceClassification,
BartModel,
BartPreTrainedModel,
BartPretrainedModel,
PretrainedBartModel,
)
from .models.beit import (
BEIT_PRETRAINED_MODEL_ARCHIVE_LIST,
BeitBackbone,
BeitForImageClassification,
BeitForMaskedImageModeling,
BeitForSemanticSegmentation,
BeitModel,
BeitPreTrainedModel,
)
from .models.bert import (
BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
BertForMaskedLM,
BertForMultipleChoice,
BertForNextSentencePrediction,
BertForPreTraining,
BertForQuestionAnswering,
BertForSequenceClassification,
BertForTokenClassification,
BertLayer,
BertLMHeadModel,
BertModel,
BertPreTrainedModel,
load_tf_weights_in_bert,
)
from .models.bert_generation import (
BertGenerationDecoder,
BertGenerationEncoder,
BertGenerationPreTrainedModel,
load_tf_weights_in_bert_generation,
)
from .models.big_bird import (
BIG_BIRD_PRETRAINED_MODEL_ARCHIVE_LIST,
BigBirdForCausalLM,
BigBirdForMaskedLM,
BigBirdForMultipleChoice,
BigBirdForPreTraining,
BigBirdForQuestionAnswering,
BigBirdForSequenceClassification,
BigBirdForTokenClassification,
BigBirdLayer,
BigBirdModel,
BigBirdPreTrainedModel,
load_tf_weights_in_big_bird,
)
from .models.bigbird_pegasus import (
BIGBIRD_PEGASUS_PRETRAINED_MODEL_ARCHIVE_LIST,
BigBirdPegasusForCausalLM,
BigBirdPegasusForConditionalGeneration,
BigBirdPegasusForQuestionAnswering,
BigBirdPegasusForSequenceClassification,
BigBirdPegasusModel,
BigBirdPegasusPreTrainedModel,
)
from .models.biogpt import (
BIOGPT_PRETRAINED_MODEL_ARCHIVE_LIST,
BioGptForCausalLM,
BioGptForSequenceClassification,
BioGptForTokenClassification,
BioGptModel,
BioGptPreTrainedModel,
)
from .models.bit import (
BIT_PRETRAINED_MODEL_ARCHIVE_LIST,
BitBackbone,
BitForImageClassification,
BitModel,
BitPreTrainedModel,
)
from .models.blenderbot import (
BLENDERBOT_PRETRAINED_MODEL_ARCHIVE_LIST,
BlenderbotForCausalLM,
BlenderbotForConditionalGeneration,
BlenderbotModel,
BlenderbotPreTrainedModel,
)
from .models.blenderbot_small import (
BLENDERBOT_SMALL_PRETRAINED_MODEL_ARCHIVE_LIST,
BlenderbotSmallForCausalLM,
BlenderbotSmallForConditionalGeneration,
BlenderbotSmallModel,
BlenderbotSmallPreTrainedModel,
)
from .models.blip import (
BLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
BlipForConditionalGeneration,
BlipForImageTextRetrieval,
BlipForQuestionAnswering,
BlipModel,
BlipPreTrainedModel,
BlipTextModel,
BlipVisionModel,
)
from .models.blip_2 import (
BLIP_2_PRETRAINED_MODEL_ARCHIVE_LIST,
Blip2ForConditionalGeneration,
Blip2Model,
Blip2PreTrainedModel,
Blip2QFormerModel,
Blip2VisionModel,
)
from .models.bloom import (
BLOOM_PRETRAINED_MODEL_ARCHIVE_LIST,
BloomForCausalLM,
BloomForQuestionAnswering,
BloomForSequenceClassification,
BloomForTokenClassification,
BloomModel,
BloomPreTrainedModel,
)
from .models.bridgetower import (
BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST,
BridgeTowerForContrastiveLearning,
BridgeTowerForImageAndTextRetrieval,
BridgeTowerForMaskedLM,
BridgeTowerModel,
BridgeTowerPreTrainedModel,
)
from .models.bros import (
BROS_PRETRAINED_MODEL_ARCHIVE_LIST,
BrosForTokenClassification,
BrosModel,
BrosPreTrainedModel,
BrosProcessor,
BrosSpadeEEForTokenClassification,
BrosSpadeELForTokenClassification,
)
from .models.camembert import (
CAMEMBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
CamembertForCausalLM,
CamembertForMaskedLM,
CamembertForMultipleChoice,
CamembertForQuestionAnswering,
CamembertForSequenceClassification,
CamembertForTokenClassification,
CamembertModel,
CamembertPreTrainedModel,
)
from .models.canine import (
CANINE_PRETRAINED_MODEL_ARCHIVE_LIST,
CanineForMultipleChoice,
CanineForQuestionAnswering,
CanineForSequenceClassification,
CanineForTokenClassification,
CanineLayer,
CanineModel,
CaninePreTrainedModel,
load_tf_weights_in_canine,
)
from .models.chinese_clip import (
CHINESE_CLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
ChineseCLIPModel,
ChineseCLIPPreTrainedModel,
ChineseCLIPTextModel,
ChineseCLIPVisionModel,
)
from .models.clap import (
CLAP_PRETRAINED_MODEL_ARCHIVE_LIST,
ClapAudioModel,
ClapAudioModelWithProjection,
ClapFeatureExtractor,
ClapModel,
ClapPreTrainedModel,
ClapTextModel,
ClapTextModelWithProjection,
)
from .models.clip import (
CLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
CLIPForImageClassification,
CLIPModel,
CLIPPreTrainedModel,
CLIPTextModel,
CLIPTextModelWithProjection,
CLIPVisionModel,
CLIPVisionModelWithProjection,
)
from .models.clipseg import (
CLIPSEG_PRETRAINED_MODEL_ARCHIVE_LIST,
CLIPSegForImageSegmentation,
CLIPSegModel,
CLIPSegPreTrainedModel,
CLIPSegTextModel,
CLIPSegVisionModel,
)
from .models.clvp import (
CLVP_PRETRAINED_MODEL_ARCHIVE_LIST,
ClvpDecoder,
ClvpEncoder,
ClvpForCausalLM,
ClvpModel,
ClvpModelForConditionalGeneration,
ClvpPreTrainedModel,
)
from .models.codegen import (
CODEGEN_PRETRAINED_MODEL_ARCHIVE_LIST,
CodeGenForCausalLM,
CodeGenModel,
CodeGenPreTrainedModel,
)
from .models.cohere import (
CohereForCausalLM,
CohereModel,
CoherePreTrainedModel,
)
from .models.conditional_detr import (
CONDITIONAL_DETR_PRETRAINED_MODEL_ARCHIVE_LIST,
ConditionalDetrForObjectDetection,
ConditionalDetrForSegmentation,
ConditionalDetrModel,
ConditionalDetrPreTrainedModel,
)
from .models.convbert import (
CONVBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
ConvBertForMaskedLM,
ConvBertForMultipleChoice,
ConvBertForQuestionAnswering,
ConvBertForSequenceClassification,
ConvBertForTokenClassification,
ConvBertLayer,
ConvBertModel,
ConvBertPreTrainedModel,
load_tf_weights_in_convbert,
)
from .models.convnext import (
CONVNEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
ConvNextBackbone,
ConvNextForImageClassification,
ConvNextModel,
ConvNextPreTrainedModel,
)
from .models.convnextv2 import (
CONVNEXTV2_PRETRAINED_MODEL_ARCHIVE_LIST,
ConvNextV2Backbone,
ConvNextV2ForImageClassification,
ConvNextV2Model,
ConvNextV2PreTrainedModel,
)
from .models.cpmant import (
CPMANT_PRETRAINED_MODEL_ARCHIVE_LIST,
CpmAntForCausalLM,
CpmAntModel,
CpmAntPreTrainedModel,
)
from .models.ctrl import (
CTRL_PRETRAINED_MODEL_ARCHIVE_LIST,
CTRLForSequenceClassification,
CTRLLMHeadModel,
CTRLModel,
CTRLPreTrainedModel,
)
from .models.cvt import (
CVT_PRETRAINED_MODEL_ARCHIVE_LIST,
CvtForImageClassification,
CvtModel,
CvtPreTrainedModel,
)
from .models.data2vec import (
DATA2VEC_AUDIO_PRETRAINED_MODEL_ARCHIVE_LIST,
DATA2VEC_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
DATA2VEC_VISION_PRETRAINED_MODEL_ARCHIVE_LIST,
Data2VecAudioForAudioFrameClassification,
Data2VecAudioForCTC,
Data2VecAudioForSequenceClassification,
Data2VecAudioForXVector,
Data2VecAudioModel,
Data2VecAudioPreTrainedModel,
Data2VecTextForCausalLM,
Data2VecTextForMaskedLM,
Data2VecTextForMultipleChoice,
Data2VecTextForQuestionAnswering,
Data2VecTextForSequenceClassification,
Data2VecTextForTokenClassification,
Data2VecTextModel,
Data2VecTextPreTrainedModel,
Data2VecVisionForImageClassification,
Data2VecVisionForSemanticSegmentation,
Data2VecVisionModel,
Data2VecVisionPreTrainedModel,
)
# PyTorch model imports
from .models.dbrx import (
DbrxForCausalLM,
DbrxModel,
DbrxPreTrainedModel,
)
from .models.deberta import (
DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
DebertaForMaskedLM,
DebertaForQuestionAnswering,
DebertaForSequenceClassification,
DebertaForTokenClassification,
DebertaModel,
DebertaPreTrainedModel,
)
from .models.deberta_v2 import (
DEBERTA_V2_PRETRAINED_MODEL_ARCHIVE_LIST,
DebertaV2ForMaskedLM,
DebertaV2ForMultipleChoice,
DebertaV2ForQuestionAnswering,
DebertaV2ForSequenceClassification,
DebertaV2ForTokenClassification,
DebertaV2Model,
DebertaV2PreTrainedModel,
)
from .models.decision_transformer import (
DECISION_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
DecisionTransformerGPT2Model,
DecisionTransformerGPT2PreTrainedModel,
DecisionTransformerModel,
DecisionTransformerPreTrainedModel,
)
from .models.deformable_detr import (
DEFORMABLE_DETR_PRETRAINED_MODEL_ARCHIVE_LIST,
DeformableDetrForObjectDetection,
DeformableDetrModel,
DeformableDetrPreTrainedModel,
)
from .models.deit import (
DEIT_PRETRAINED_MODEL_ARCHIVE_LIST,
DeiTForImageClassification,
DeiTForImageClassificationWithTeacher,
DeiTForMaskedImageModeling,
DeiTModel,
DeiTPreTrainedModel,
)
from .models.deprecated.mctct import (
MCTCT_PRETRAINED_MODEL_ARCHIVE_LIST,
MCTCTForCTC,
MCTCTModel,
MCTCTPreTrainedModel,
)
from .models.deprecated.mmbt import (
MMBTForClassification,
MMBTModel,
ModalEmbeddings,
)
from .models.deprecated.open_llama import (
OpenLlamaForCausalLM,
OpenLlamaForSequenceClassification,
OpenLlamaModel,
OpenLlamaPreTrainedModel,
)
from .models.deprecated.retribert import (
RETRIBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
RetriBertModel,
RetriBertPreTrainedModel,
)
from .models.deprecated.trajectory_transformer import (
TRAJECTORY_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TrajectoryTransformerModel,
TrajectoryTransformerPreTrainedModel,
)
from .models.deprecated.transfo_xl import (
TRANSFO_XL_PRETRAINED_MODEL_ARCHIVE_LIST,
AdaptiveEmbedding,
TransfoXLForSequenceClassification,
TransfoXLLMHeadModel,
TransfoXLModel,
TransfoXLPreTrainedModel,
load_tf_weights_in_transfo_xl,
)
from .models.deprecated.van import (
VAN_PRETRAINED_MODEL_ARCHIVE_LIST,
VanForImageClassification,
VanModel,
VanPreTrainedModel,
)
from .models.depth_anything import (
DEPTH_ANYTHING_PRETRAINED_MODEL_ARCHIVE_LIST,
DepthAnythingForDepthEstimation,
DepthAnythingPreTrainedModel,
)
from .models.deta import (
DETA_PRETRAINED_MODEL_ARCHIVE_LIST,
DetaForObjectDetection,
DetaModel,
DetaPreTrainedModel,
)
from .models.detr import (
DETR_PRETRAINED_MODEL_ARCHIVE_LIST,
DetrForObjectDetection,
DetrForSegmentation,
DetrModel,
DetrPreTrainedModel,
)
from .models.dinat import (
DINAT_PRETRAINED_MODEL_ARCHIVE_LIST,
DinatBackbone,
DinatForImageClassification,
DinatModel,
DinatPreTrainedModel,
)
from .models.dinov2 import (
DINOV2_PRETRAINED_MODEL_ARCHIVE_LIST,
Dinov2Backbone,
Dinov2ForImageClassification,
Dinov2Model,
Dinov2PreTrainedModel,
)
from .models.distilbert import (
DISTILBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
DistilBertForMaskedLM,
DistilBertForMultipleChoice,
DistilBertForQuestionAnswering,
DistilBertForSequenceClassification,
DistilBertForTokenClassification,
DistilBertModel,
DistilBertPreTrainedModel,
)
from .models.donut import (
DONUT_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
DonutSwinModel,
DonutSwinPreTrainedModel,
)
from .models.dpr import (
DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST,
DPRContextEncoder,
DPRPretrainedContextEncoder,
DPRPreTrainedModel,
DPRPretrainedQuestionEncoder,
DPRPretrainedReader,
DPRQuestionEncoder,
DPRReader,
)
from .models.dpt import (
DPT_PRETRAINED_MODEL_ARCHIVE_LIST,
DPTForDepthEstimation,
DPTForSemanticSegmentation,
DPTModel,
DPTPreTrainedModel,
)
from .models.efficientformer import (
EFFICIENTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
EfficientFormerForImageClassification,
EfficientFormerForImageClassificationWithTeacher,
EfficientFormerModel,
EfficientFormerPreTrainedModel,
)
from .models.efficientnet import (
EFFICIENTNET_PRETRAINED_MODEL_ARCHIVE_LIST,
EfficientNetForImageClassification,
EfficientNetModel,
EfficientNetPreTrainedModel,
)
from .models.electra import (
ELECTRA_PRETRAINED_MODEL_ARCHIVE_LIST,
ElectraForCausalLM,
ElectraForMaskedLM,
ElectraForMultipleChoice,
ElectraForPreTraining,
ElectraForQuestionAnswering,
ElectraForSequenceClassification,
ElectraForTokenClassification,
ElectraModel,
ElectraPreTrainedModel,
load_tf_weights_in_electra,
)
from .models.encodec import (
ENCODEC_PRETRAINED_MODEL_ARCHIVE_LIST,
EncodecModel,
EncodecPreTrainedModel,
)
from .models.encoder_decoder import EncoderDecoderModel
from .models.ernie import (
ERNIE_PRETRAINED_MODEL_ARCHIVE_LIST,
ErnieForCausalLM,
ErnieForMaskedLM,
ErnieForMultipleChoice,
ErnieForNextSentencePrediction,
ErnieForPreTraining,
ErnieForQuestionAnswering,
ErnieForSequenceClassification,
ErnieForTokenClassification,
ErnieModel,
ErniePreTrainedModel,
)
from .models.ernie_m import (
ERNIE_M_PRETRAINED_MODEL_ARCHIVE_LIST,
ErnieMForInformationExtraction,
ErnieMForMultipleChoice,
ErnieMForQuestionAnswering,
ErnieMForSequenceClassification,
ErnieMForTokenClassification,
ErnieMModel,
ErnieMPreTrainedModel,
)
from .models.esm import (
ESM_PRETRAINED_MODEL_ARCHIVE_LIST,
EsmFoldPreTrainedModel,
EsmForMaskedLM,
EsmForProteinFolding,
EsmForSequenceClassification,
EsmForTokenClassification,
EsmModel,
EsmPreTrainedModel,
)
from .models.falcon import (
FALCON_PRETRAINED_MODEL_ARCHIVE_LIST,
FalconForCausalLM,
FalconForQuestionAnswering,
FalconForSequenceClassification,
FalconForTokenClassification,
FalconModel,
FalconPreTrainedModel,
)
from .models.fastspeech2_conformer import (
FASTSPEECH2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
FastSpeech2ConformerHifiGan,
FastSpeech2ConformerModel,
FastSpeech2ConformerPreTrainedModel,
FastSpeech2ConformerWithHifiGan,
)
from .models.flaubert import (
FLAUBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
FlaubertForMultipleChoice,
FlaubertForQuestionAnswering,
FlaubertForQuestionAnsweringSimple,
FlaubertForSequenceClassification,
FlaubertForTokenClassification,
FlaubertModel,
FlaubertPreTrainedModel,
FlaubertWithLMHeadModel,
)
from .models.flava import (
FLAVA_PRETRAINED_MODEL_ARCHIVE_LIST,
FlavaForPreTraining,
FlavaImageCodebook,
FlavaImageModel,
FlavaModel,
FlavaMultimodalModel,
FlavaPreTrainedModel,
FlavaTextModel,
)
from .models.fnet import (
FNET_PRETRAINED_MODEL_ARCHIVE_LIST,
FNetForMaskedLM,
FNetForMultipleChoice,
FNetForNextSentencePrediction,
FNetForPreTraining,
FNetForQuestionAnswering,
FNetForSequenceClassification,
FNetForTokenClassification,
FNetLayer,
FNetModel,
FNetPreTrainedModel,
)
from .models.focalnet import (
FOCALNET_PRETRAINED_MODEL_ARCHIVE_LIST,
FocalNetBackbone,
FocalNetForImageClassification,
FocalNetForMaskedImageModeling,
FocalNetModel,
FocalNetPreTrainedModel,
)
from .models.fsmt import (
FSMTForConditionalGeneration,
FSMTModel,
PretrainedFSMTModel,
)
from .models.funnel import (
FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST,
FunnelBaseModel,
FunnelForMaskedLM,
FunnelForMultipleChoice,
FunnelForPreTraining,
FunnelForQuestionAnswering,
FunnelForSequenceClassification,
FunnelForTokenClassification,
FunnelModel,
FunnelPreTrainedModel,
load_tf_weights_in_funnel,
)
from .models.fuyu import (
FuyuForCausalLM,
FuyuPreTrainedModel,
)
from .models.gemma import (
GemmaForCausalLM,
GemmaForSequenceClassification,
GemmaModel,
GemmaPreTrainedModel,
)
from .models.git import (
GIT_PRETRAINED_MODEL_ARCHIVE_LIST,
GitForCausalLM,
GitModel,
GitPreTrainedModel,
GitVisionModel,
)
from .models.glpn import (
GLPN_PRETRAINED_MODEL_ARCHIVE_LIST,
GLPNForDepthEstimation,
GLPNModel,
GLPNPreTrainedModel,
)
from .models.gpt2 import (
GPT2_PRETRAINED_MODEL_ARCHIVE_LIST,
GPT2DoubleHeadsModel,
GPT2ForQuestionAnswering,
GPT2ForSequenceClassification,
GPT2ForTokenClassification,
GPT2LMHeadModel,
GPT2Model,
GPT2PreTrainedModel,
load_tf_weights_in_gpt2,
)
from .models.gpt_bigcode import (
GPT_BIGCODE_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTBigCodeForCausalLM,
GPTBigCodeForSequenceClassification,
GPTBigCodeForTokenClassification,
GPTBigCodeModel,
GPTBigCodePreTrainedModel,
)
from .models.gpt_neo import (
GPT_NEO_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTNeoForCausalLM,
GPTNeoForQuestionAnswering,
GPTNeoForSequenceClassification,
GPTNeoForTokenClassification,
GPTNeoModel,
GPTNeoPreTrainedModel,
load_tf_weights_in_gpt_neo,
)
from .models.gpt_neox import (
GPT_NEOX_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTNeoXForCausalLM,
GPTNeoXForQuestionAnswering,
GPTNeoXForSequenceClassification,
GPTNeoXForTokenClassification,
GPTNeoXLayer,
GPTNeoXModel,
GPTNeoXPreTrainedModel,
)
from .models.gpt_neox_japanese import (
GPT_NEOX_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTNeoXJapaneseForCausalLM,
GPTNeoXJapaneseLayer,
GPTNeoXJapaneseModel,
GPTNeoXJapanesePreTrainedModel,
)
from .models.gptj import (
GPTJ_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTJForCausalLM,
GPTJForQuestionAnswering,
GPTJForSequenceClassification,
GPTJModel,
GPTJPreTrainedModel,
)
from .models.gptsan_japanese import (
GPTSAN_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST,
GPTSanJapaneseForConditionalGeneration,
GPTSanJapaneseModel,
GPTSanJapanesePreTrainedModel,
)
from .models.graphormer import (
GRAPHORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
GraphormerForGraphClassification,
GraphormerModel,
GraphormerPreTrainedModel,
)
from .models.grounding_dino import (
GROUNDING_DINO_PRETRAINED_MODEL_ARCHIVE_LIST,
GroundingDinoForObjectDetection,
GroundingDinoModel,
GroundingDinoPreTrainedModel,
)
from .models.groupvit import (
GROUPVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
GroupViTModel,
GroupViTPreTrainedModel,
GroupViTTextModel,
GroupViTVisionModel,
)
from .models.hubert import (
HUBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
HubertForCTC,
HubertForSequenceClassification,
HubertModel,
HubertPreTrainedModel,
)
from .models.ibert import (
IBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
IBertForMaskedLM,
IBertForMultipleChoice,
IBertForQuestionAnswering,
IBertForSequenceClassification,
IBertForTokenClassification,
IBertModel,
IBertPreTrainedModel,
)
from .models.idefics import (
IDEFICS_PRETRAINED_MODEL_ARCHIVE_LIST,
IdeficsForVisionText2Text,
IdeficsModel,
IdeficsPreTrainedModel,
IdeficsProcessor,
)
from .models.idefics2 import (
IDEFICS2_PRETRAINED_MODEL_ARCHIVE_LIST,
Idefics2ForConditionalGeneration,
Idefics2Model,
Idefics2PreTrainedModel,
Idefics2Processor,
)
from .models.imagegpt import (
IMAGEGPT_PRETRAINED_MODEL_ARCHIVE_LIST,
ImageGPTForCausalImageModeling,
ImageGPTForImageClassification,
ImageGPTModel,
ImageGPTPreTrainedModel,
load_tf_weights_in_imagegpt,
)
from .models.informer import (
INFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
InformerForPrediction,
InformerModel,
InformerPreTrainedModel,
)
from .models.instructblip import (
INSTRUCTBLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
InstructBlipForConditionalGeneration,
InstructBlipPreTrainedModel,
InstructBlipQFormerModel,
InstructBlipVisionModel,
)
from .models.jamba import (
JambaForCausalLM,
JambaForSequenceClassification,
JambaModel,
JambaPreTrainedModel,
)
from .models.jukebox import (
JUKEBOX_PRETRAINED_MODEL_ARCHIVE_LIST,
JukeboxModel,
JukeboxPreTrainedModel,
JukeboxPrior,
JukeboxVQVAE,
)
from .models.kosmos2 import (
KOSMOS2_PRETRAINED_MODEL_ARCHIVE_LIST,
Kosmos2ForConditionalGeneration,
Kosmos2Model,
Kosmos2PreTrainedModel,
)
from .models.layoutlm import (
LAYOUTLM_PRETRAINED_MODEL_ARCHIVE_LIST,
LayoutLMForMaskedLM,
LayoutLMForQuestionAnswering,
LayoutLMForSequenceClassification,
LayoutLMForTokenClassification,
LayoutLMModel,
LayoutLMPreTrainedModel,
)
from .models.layoutlmv2 import (
LAYOUTLMV2_PRETRAINED_MODEL_ARCHIVE_LIST,
LayoutLMv2ForQuestionAnswering,
LayoutLMv2ForSequenceClassification,
LayoutLMv2ForTokenClassification,
LayoutLMv2Model,
LayoutLMv2PreTrainedModel,
)
from .models.layoutlmv3 import (
LAYOUTLMV3_PRETRAINED_MODEL_ARCHIVE_LIST,
LayoutLMv3ForQuestionAnswering,
LayoutLMv3ForSequenceClassification,
LayoutLMv3ForTokenClassification,
LayoutLMv3Model,
LayoutLMv3PreTrainedModel,
)
from .models.led import (
LED_PRETRAINED_MODEL_ARCHIVE_LIST,
LEDForConditionalGeneration,
LEDForQuestionAnswering,
LEDForSequenceClassification,
LEDModel,
LEDPreTrainedModel,
)
from .models.levit import (
LEVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
LevitForImageClassification,
LevitForImageClassificationWithTeacher,
LevitModel,
LevitPreTrainedModel,
)
from .models.lilt import (
LILT_PRETRAINED_MODEL_ARCHIVE_LIST,
LiltForQuestionAnswering,
LiltForSequenceClassification,
LiltForTokenClassification,
LiltModel,
LiltPreTrainedModel,
)
from .models.llama import (
LlamaForCausalLM,
LlamaForQuestionAnswering,
LlamaForSequenceClassification,
LlamaModel,
LlamaPreTrainedModel,
)
from .models.llava import (
LLAVA_PRETRAINED_MODEL_ARCHIVE_LIST,
LlavaForConditionalGeneration,
LlavaPreTrainedModel,
)
from .models.llava_next import (
LLAVA_NEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
LlavaNextForConditionalGeneration,
LlavaNextPreTrainedModel,
)
from .models.longformer import (
LONGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
LongformerForMaskedLM,
LongformerForMultipleChoice,
LongformerForQuestionAnswering,
LongformerForSequenceClassification,
LongformerForTokenClassification,
LongformerModel,
LongformerPreTrainedModel,
LongformerSelfAttention,
)
from .models.longt5 import (
LONGT5_PRETRAINED_MODEL_ARCHIVE_LIST,
LongT5EncoderModel,
LongT5ForConditionalGeneration,
LongT5Model,
LongT5PreTrainedModel,
)
from .models.luke import (
LUKE_PRETRAINED_MODEL_ARCHIVE_LIST,
LukeForEntityClassification,
LukeForEntityPairClassification,
LukeForEntitySpanClassification,
LukeForMaskedLM,
LukeForMultipleChoice,
LukeForQuestionAnswering,
LukeForSequenceClassification,
LukeForTokenClassification,
LukeModel,
LukePreTrainedModel,
)
from .models.lxmert import (
LxmertEncoder,
LxmertForPreTraining,
LxmertForQuestionAnswering,
LxmertModel,
LxmertPreTrainedModel,
LxmertVisualFeatureEncoder,
LxmertXLayer,
)
from .models.m2m_100 import (
M2M_100_PRETRAINED_MODEL_ARCHIVE_LIST,
M2M100ForConditionalGeneration,
M2M100Model,
M2M100PreTrainedModel,
)
from .models.mamba import (
MAMBA_PRETRAINED_MODEL_ARCHIVE_LIST,
MambaForCausalLM,
MambaModel,
MambaPreTrainedModel,
)
from .models.marian import MarianForCausalLM, MarianModel, MarianMTModel
from .models.markuplm import (
MARKUPLM_PRETRAINED_MODEL_ARCHIVE_LIST,
MarkupLMForQuestionAnswering,
MarkupLMForSequenceClassification,
MarkupLMForTokenClassification,
MarkupLMModel,
MarkupLMPreTrainedModel,
)
from .models.mask2former import (
MASK2FORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
Mask2FormerForUniversalSegmentation,
Mask2FormerModel,
Mask2FormerPreTrainedModel,
)
from .models.maskformer import (
MASKFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
MaskFormerForInstanceSegmentation,
MaskFormerModel,
MaskFormerPreTrainedModel,
MaskFormerSwinBackbone,
)
from .models.mbart import (
MBartForCausalLM,
MBartForConditionalGeneration,
MBartForQuestionAnswering,
MBartForSequenceClassification,
MBartModel,
MBartPreTrainedModel,
)
from .models.mega import (
MEGA_PRETRAINED_MODEL_ARCHIVE_LIST,
MegaForCausalLM,
MegaForMaskedLM,
MegaForMultipleChoice,
MegaForQuestionAnswering,
MegaForSequenceClassification,
MegaForTokenClassification,
MegaModel,
MegaPreTrainedModel,
)
from .models.megatron_bert import (
MEGATRON_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
MegatronBertForCausalLM,
MegatronBertForMaskedLM,
MegatronBertForMultipleChoice,
MegatronBertForNextSentencePrediction,
MegatronBertForPreTraining,
MegatronBertForQuestionAnswering,
MegatronBertForSequenceClassification,
MegatronBertForTokenClassification,
MegatronBertModel,
MegatronBertPreTrainedModel,
)
from .models.mgp_str import (
MGP_STR_PRETRAINED_MODEL_ARCHIVE_LIST,
MgpstrForSceneTextRecognition,
MgpstrModel,
MgpstrPreTrainedModel,
)
from .models.mistral import (
MistralForCausalLM,
MistralForSequenceClassification,
MistralModel,
MistralPreTrainedModel,
)
from .models.mixtral import (
MixtralForCausalLM,
MixtralForSequenceClassification,
MixtralModel,
MixtralPreTrainedModel,
)
from .models.mobilebert import (
MOBILEBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
MobileBertForMaskedLM,
MobileBertForMultipleChoice,
MobileBertForNextSentencePrediction,
MobileBertForPreTraining,
MobileBertForQuestionAnswering,
MobileBertForSequenceClassification,
MobileBertForTokenClassification,
MobileBertLayer,
MobileBertModel,
MobileBertPreTrainedModel,
load_tf_weights_in_mobilebert,
)
from .models.mobilenet_v1 import (
MOBILENET_V1_PRETRAINED_MODEL_ARCHIVE_LIST,
MobileNetV1ForImageClassification,
MobileNetV1Model,
MobileNetV1PreTrainedModel,
load_tf_weights_in_mobilenet_v1,
)
from .models.mobilenet_v2 import (
MOBILENET_V2_PRETRAINED_MODEL_ARCHIVE_LIST,
MobileNetV2ForImageClassification,
MobileNetV2ForSemanticSegmentation,
MobileNetV2Model,
MobileNetV2PreTrainedModel,
load_tf_weights_in_mobilenet_v2,
)
from .models.mobilevit import (
MOBILEVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
MobileViTForImageClassification,
MobileViTForSemanticSegmentation,
MobileViTModel,
MobileViTPreTrainedModel,
)
from .models.mobilevitv2 import (
MOBILEVITV2_PRETRAINED_MODEL_ARCHIVE_LIST,
MobileViTV2ForImageClassification,
MobileViTV2ForSemanticSegmentation,
MobileViTV2Model,
MobileViTV2PreTrainedModel,
)
from .models.mpnet import (
MPNET_PRETRAINED_MODEL_ARCHIVE_LIST,
MPNetForMaskedLM,
MPNetForMultipleChoice,
MPNetForQuestionAnswering,
MPNetForSequenceClassification,
MPNetForTokenClassification,
MPNetLayer,
MPNetModel,
MPNetPreTrainedModel,
)
from .models.mpt import (
MPT_PRETRAINED_MODEL_ARCHIVE_LIST,
MptForCausalLM,
MptForQuestionAnswering,
MptForSequenceClassification,
MptForTokenClassification,
MptModel,
MptPreTrainedModel,
)
from .models.mra import (
MRA_PRETRAINED_MODEL_ARCHIVE_LIST,
MraForMaskedLM,
MraForMultipleChoice,
MraForQuestionAnswering,
MraForSequenceClassification,
MraForTokenClassification,
MraModel,
MraPreTrainedModel,
)
from .models.mt5 import (
MT5EncoderModel,
MT5ForConditionalGeneration,
MT5ForQuestionAnswering,
MT5ForSequenceClassification,
MT5ForTokenClassification,
MT5Model,
MT5PreTrainedModel,
)
from .models.musicgen import (
MUSICGEN_PRETRAINED_MODEL_ARCHIVE_LIST,
MusicgenForCausalLM,
MusicgenForConditionalGeneration,
MusicgenModel,
MusicgenPreTrainedModel,
MusicgenProcessor,
)
from .models.musicgen_melody import (
MUSICGEN_MELODY_PRETRAINED_MODEL_ARCHIVE_LIST,
MusicgenMelodyForCausalLM,
MusicgenMelodyForConditionalGeneration,
MusicgenMelodyModel,
MusicgenMelodyPreTrainedModel,
)
from .models.mvp import (
MVP_PRETRAINED_MODEL_ARCHIVE_LIST,
MvpForCausalLM,
MvpForConditionalGeneration,
MvpForQuestionAnswering,
MvpForSequenceClassification,
MvpModel,
MvpPreTrainedModel,
)
from .models.nat import (
NAT_PRETRAINED_MODEL_ARCHIVE_LIST,
NatBackbone,
NatForImageClassification,
NatModel,
NatPreTrainedModel,
)
from .models.nezha import (
NEZHA_PRETRAINED_MODEL_ARCHIVE_LIST,
NezhaForMaskedLM,
NezhaForMultipleChoice,
NezhaForNextSentencePrediction,
NezhaForPreTraining,
NezhaForQuestionAnswering,
NezhaForSequenceClassification,
NezhaForTokenClassification,
NezhaModel,
NezhaPreTrainedModel,
)
from .models.nllb_moe import (
NLLB_MOE_PRETRAINED_MODEL_ARCHIVE_LIST,
NllbMoeForConditionalGeneration,
NllbMoeModel,
NllbMoePreTrainedModel,
NllbMoeSparseMLP,
NllbMoeTop2Router,
)
from .models.nystromformer import (
NYSTROMFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
NystromformerForMaskedLM,
NystromformerForMultipleChoice,
NystromformerForQuestionAnswering,
NystromformerForSequenceClassification,
NystromformerForTokenClassification,
NystromformerLayer,
NystromformerModel,
NystromformerPreTrainedModel,
)
from .models.olmo import (
OlmoForCausalLM,
OlmoModel,
OlmoPreTrainedModel,
)
from .models.oneformer import (
ONEFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
OneFormerForUniversalSegmentation,
OneFormerModel,
OneFormerPreTrainedModel,
)
from .models.openai import (
OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST,
OpenAIGPTDoubleHeadsModel,
OpenAIGPTForSequenceClassification,
OpenAIGPTLMHeadModel,
OpenAIGPTModel,
OpenAIGPTPreTrainedModel,
load_tf_weights_in_openai_gpt,
)
from .models.opt import (
OPT_PRETRAINED_MODEL_ARCHIVE_LIST,
OPTForCausalLM,
OPTForQuestionAnswering,
OPTForSequenceClassification,
OPTModel,
OPTPreTrainedModel,
)
from .models.owlv2 import (
OWLV2_PRETRAINED_MODEL_ARCHIVE_LIST,
Owlv2ForObjectDetection,
Owlv2Model,
Owlv2PreTrainedModel,
Owlv2TextModel,
Owlv2VisionModel,
)
from .models.owlvit import (
OWLVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
OwlViTForObjectDetection,
OwlViTModel,
OwlViTPreTrainedModel,
OwlViTTextModel,
OwlViTVisionModel,
)
from .models.patchtsmixer import (
PATCHTSMIXER_PRETRAINED_MODEL_ARCHIVE_LIST,
PatchTSMixerForPrediction,
PatchTSMixerForPretraining,
PatchTSMixerForRegression,
PatchTSMixerForTimeSeriesClassification,
PatchTSMixerModel,
PatchTSMixerPreTrainedModel,
)
from .models.patchtst import (
PATCHTST_PRETRAINED_MODEL_ARCHIVE_LIST,
PatchTSTForClassification,
PatchTSTForPrediction,
PatchTSTForPretraining,
PatchTSTForRegression,
PatchTSTModel,
PatchTSTPreTrainedModel,
)
from .models.pegasus import (
PegasusForCausalLM,
PegasusForConditionalGeneration,
PegasusModel,
PegasusPreTrainedModel,
)
from .models.pegasus_x import (
PEGASUS_X_PRETRAINED_MODEL_ARCHIVE_LIST,
PegasusXForConditionalGeneration,
PegasusXModel,
PegasusXPreTrainedModel,
)
from .models.perceiver import (
PERCEIVER_PRETRAINED_MODEL_ARCHIVE_LIST,
PerceiverForImageClassificationConvProcessing,
PerceiverForImageClassificationFourier,
PerceiverForImageClassificationLearned,
PerceiverForMaskedLM,
PerceiverForMultimodalAutoencoding,
PerceiverForOpticalFlow,
PerceiverForSequenceClassification,
PerceiverLayer,
PerceiverModel,
PerceiverPreTrainedModel,
)
from .models.persimmon import (
PersimmonForCausalLM,
PersimmonForSequenceClassification,
PersimmonModel,
PersimmonPreTrainedModel,
)
from .models.phi import (
PHI_PRETRAINED_MODEL_ARCHIVE_LIST,
PhiForCausalLM,
PhiForSequenceClassification,
PhiForTokenClassification,
PhiModel,
PhiPreTrainedModel,
)
from .models.phi3 import (
PHI3_PRETRAINED_MODEL_ARCHIVE_LIST,
Phi3ForCausalLM,
Phi3ForSequenceClassification,
Phi3ForTokenClassification,
Phi3Model,
Phi3PreTrainedModel,
)
from .models.pix2struct import (
PIX2STRUCT_PRETRAINED_MODEL_ARCHIVE_LIST,
Pix2StructForConditionalGeneration,
Pix2StructPreTrainedModel,
Pix2StructTextModel,
Pix2StructVisionModel,
)
from .models.plbart import (
PLBART_PRETRAINED_MODEL_ARCHIVE_LIST,
PLBartForCausalLM,
PLBartForConditionalGeneration,
PLBartForSequenceClassification,
PLBartModel,
PLBartPreTrainedModel,
)
from .models.poolformer import (
POOLFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
PoolFormerForImageClassification,
PoolFormerModel,
PoolFormerPreTrainedModel,
)
from .models.pop2piano import (
POP2PIANO_PRETRAINED_MODEL_ARCHIVE_LIST,
Pop2PianoForConditionalGeneration,
Pop2PianoPreTrainedModel,
)
from .models.prophetnet import (
PROPHETNET_PRETRAINED_MODEL_ARCHIVE_LIST,
ProphetNetDecoder,
ProphetNetEncoder,
ProphetNetForCausalLM,
ProphetNetForConditionalGeneration,
ProphetNetModel,
ProphetNetPreTrainedModel,
)
from .models.pvt import (
PVT_PRETRAINED_MODEL_ARCHIVE_LIST,
PvtForImageClassification,
PvtModel,
PvtPreTrainedModel,
)
from .models.pvt_v2 import (
PvtV2Backbone,
PvtV2ForImageClassification,
PvtV2Model,
PvtV2PreTrainedModel,
)
from .models.qdqbert import (
QDQBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
QDQBertForMaskedLM,
QDQBertForMultipleChoice,
QDQBertForNextSentencePrediction,
QDQBertForQuestionAnswering,
QDQBertForSequenceClassification,
QDQBertForTokenClassification,
QDQBertLayer,
QDQBertLMHeadModel,
QDQBertModel,
QDQBertPreTrainedModel,
load_tf_weights_in_qdqbert,
)
from .models.qwen2 import (
Qwen2ForCausalLM,
Qwen2ForSequenceClassification,
Qwen2Model,
Qwen2PreTrainedModel,
)
from .models.qwen2_moe import (
Qwen2MoeForCausalLM,
Qwen2MoeForSequenceClassification,
Qwen2MoeModel,
Qwen2MoePreTrainedModel,
)
from .models.rag import (
RagModel,
RagPreTrainedModel,
RagSequenceForGeneration,
RagTokenForGeneration,
)
from .models.realm import (
REALM_PRETRAINED_MODEL_ARCHIVE_LIST,
RealmEmbedder,
RealmForOpenQA,
RealmKnowledgeAugEncoder,
RealmPreTrainedModel,
RealmReader,
RealmRetriever,
RealmScorer,
load_tf_weights_in_realm,
)
from .models.recurrent_gemma import (
RecurrentGemmaForCausalLM,
RecurrentGemmaModel,
RecurrentGemmaPreTrainedModel,
)
from .models.reformer import (
REFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
ReformerAttention,
ReformerForMaskedLM,
ReformerForQuestionAnswering,
ReformerForSequenceClassification,
ReformerLayer,
ReformerModel,
ReformerModelWithLMHead,
ReformerPreTrainedModel,
)
from .models.regnet import (
REGNET_PRETRAINED_MODEL_ARCHIVE_LIST,
RegNetForImageClassification,
RegNetModel,
RegNetPreTrainedModel,
)
from .models.rembert import (
REMBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
RemBertForCausalLM,
RemBertForMaskedLM,
RemBertForMultipleChoice,
RemBertForQuestionAnswering,
RemBertForSequenceClassification,
RemBertForTokenClassification,
RemBertLayer,
RemBertModel,
RemBertPreTrainedModel,
load_tf_weights_in_rembert,
)
from .models.resnet import (
RESNET_PRETRAINED_MODEL_ARCHIVE_LIST,
ResNetBackbone,
ResNetForImageClassification,
ResNetModel,
ResNetPreTrainedModel,
)
from .models.roberta import (
ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
RobertaForCausalLM,
RobertaForMaskedLM,
RobertaForMultipleChoice,
RobertaForQuestionAnswering,
RobertaForSequenceClassification,
RobertaForTokenClassification,
RobertaModel,
RobertaPreTrainedModel,
)
from .models.roberta_prelayernorm import (
ROBERTA_PRELAYERNORM_PRETRAINED_MODEL_ARCHIVE_LIST,
RobertaPreLayerNormForCausalLM,
RobertaPreLayerNormForMaskedLM,
RobertaPreLayerNormForMultipleChoice,
RobertaPreLayerNormForQuestionAnswering,
RobertaPreLayerNormForSequenceClassification,
RobertaPreLayerNormForTokenClassification,
RobertaPreLayerNormModel,
RobertaPreLayerNormPreTrainedModel,
)
from .models.roc_bert import (
ROC_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
RoCBertForCausalLM,
RoCBertForMaskedLM,
RoCBertForMultipleChoice,
RoCBertForPreTraining,
RoCBertForQuestionAnswering,
RoCBertForSequenceClassification,
RoCBertForTokenClassification,
RoCBertLayer,
RoCBertModel,
RoCBertPreTrainedModel,
load_tf_weights_in_roc_bert,
)
from .models.roformer import (
ROFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
RoFormerForCausalLM,
RoFormerForMaskedLM,
RoFormerForMultipleChoice,
RoFormerForQuestionAnswering,
RoFormerForSequenceClassification,
RoFormerForTokenClassification,
RoFormerLayer,
RoFormerModel,
RoFormerPreTrainedModel,
load_tf_weights_in_roformer,
)
from .models.rwkv import (
RWKV_PRETRAINED_MODEL_ARCHIVE_LIST,
RwkvForCausalLM,
RwkvModel,
RwkvPreTrainedModel,
)
from .models.sam import (
SAM_PRETRAINED_MODEL_ARCHIVE_LIST,
SamModel,
SamPreTrainedModel,
)
from .models.seamless_m4t import (
SEAMLESS_M4T_PRETRAINED_MODEL_ARCHIVE_LIST,
SeamlessM4TCodeHifiGan,
SeamlessM4TForSpeechToSpeech,
SeamlessM4TForSpeechToText,
SeamlessM4TForTextToSpeech,
SeamlessM4TForTextToText,
SeamlessM4THifiGan,
SeamlessM4TModel,
SeamlessM4TPreTrainedModel,
SeamlessM4TTextToUnitForConditionalGeneration,
SeamlessM4TTextToUnitModel,
)
from .models.seamless_m4t_v2 import (
SEAMLESS_M4T_V2_PRETRAINED_MODEL_ARCHIVE_LIST,
SeamlessM4Tv2ForSpeechToSpeech,
SeamlessM4Tv2ForSpeechToText,
SeamlessM4Tv2ForTextToSpeech,
SeamlessM4Tv2ForTextToText,
SeamlessM4Tv2Model,
SeamlessM4Tv2PreTrainedModel,
)
from .models.segformer import (
SEGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
SegformerDecodeHead,
SegformerForImageClassification,
SegformerForSemanticSegmentation,
SegformerLayer,
SegformerModel,
SegformerPreTrainedModel,
)
from .models.seggpt import (
SEGGPT_PRETRAINED_MODEL_ARCHIVE_LIST,
SegGptForImageSegmentation,
SegGptModel,
SegGptPreTrainedModel,
)
from .models.sew import (
SEW_PRETRAINED_MODEL_ARCHIVE_LIST,
SEWForCTC,
SEWForSequenceClassification,
SEWModel,
SEWPreTrainedModel,
)
from .models.sew_d import (
SEW_D_PRETRAINED_MODEL_ARCHIVE_LIST,
SEWDForCTC,
SEWDForSequenceClassification,
SEWDModel,
SEWDPreTrainedModel,
)
from .models.siglip import (
SIGLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
SiglipForImageClassification,
SiglipModel,
SiglipPreTrainedModel,
SiglipTextModel,
SiglipVisionModel,
)
from .models.speech_encoder_decoder import SpeechEncoderDecoderModel
from .models.speech_to_text import (
SPEECH_TO_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
Speech2TextForConditionalGeneration,
Speech2TextModel,
Speech2TextPreTrainedModel,
)
from .models.speech_to_text_2 import (
Speech2Text2ForCausalLM,
Speech2Text2PreTrainedModel,
)
from .models.speecht5 import (
SPEECHT5_PRETRAINED_MODEL_ARCHIVE_LIST,
SpeechT5ForSpeechToSpeech,
SpeechT5ForSpeechToText,
SpeechT5ForTextToSpeech,
SpeechT5HifiGan,
SpeechT5Model,
SpeechT5PreTrainedModel,
)
from .models.splinter import (
SPLINTER_PRETRAINED_MODEL_ARCHIVE_LIST,
SplinterForPreTraining,
SplinterForQuestionAnswering,
SplinterLayer,
SplinterModel,
SplinterPreTrainedModel,
)
from .models.squeezebert import (
SQUEEZEBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
SqueezeBertForMaskedLM,
SqueezeBertForMultipleChoice,
SqueezeBertForQuestionAnswering,
SqueezeBertForSequenceClassification,
SqueezeBertForTokenClassification,
SqueezeBertModel,
SqueezeBertModule,
SqueezeBertPreTrainedModel,
)
from .models.stablelm import (
StableLmForCausalLM,
StableLmForSequenceClassification,
StableLmModel,
StableLmPreTrainedModel,
)
from .models.starcoder2 import (
Starcoder2ForCausalLM,
Starcoder2ForSequenceClassification,
Starcoder2Model,
Starcoder2PreTrainedModel,
)
from .models.superpoint import (
SUPERPOINT_PRETRAINED_MODEL_ARCHIVE_LIST,
SuperPointForKeypointDetection,
SuperPointPreTrainedModel,
)
from .models.swiftformer import (
SWIFTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
SwiftFormerForImageClassification,
SwiftFormerModel,
SwiftFormerPreTrainedModel,
)
from .models.swin import (
SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
SwinBackbone,
SwinForImageClassification,
SwinForMaskedImageModeling,
SwinModel,
SwinPreTrainedModel,
)
from .models.swin2sr import (
SWIN2SR_PRETRAINED_MODEL_ARCHIVE_LIST,
Swin2SRForImageSuperResolution,
Swin2SRModel,
Swin2SRPreTrainedModel,
)
from .models.swinv2 import (
SWINV2_PRETRAINED_MODEL_ARCHIVE_LIST,
Swinv2Backbone,
Swinv2ForImageClassification,
Swinv2ForMaskedImageModeling,
Swinv2Model,
Swinv2PreTrainedModel,
)
from .models.switch_transformers import (
SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST,
SwitchTransformersEncoderModel,
SwitchTransformersForConditionalGeneration,
SwitchTransformersModel,
SwitchTransformersPreTrainedModel,
SwitchTransformersSparseMLP,
SwitchTransformersTop1Router,
)
from .models.t5 import (
T5_PRETRAINED_MODEL_ARCHIVE_LIST,
T5EncoderModel,
T5ForConditionalGeneration,
T5ForQuestionAnswering,
T5ForSequenceClassification,
T5ForTokenClassification,
T5Model,
T5PreTrainedModel,
load_tf_weights_in_t5,
)
from .models.table_transformer import (
TABLE_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TableTransformerForObjectDetection,
TableTransformerModel,
TableTransformerPreTrainedModel,
)
from .models.tapas import (
TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST,
TapasForMaskedLM,
TapasForQuestionAnswering,
TapasForSequenceClassification,
TapasModel,
TapasPreTrainedModel,
load_tf_weights_in_tapas,
)
from .models.time_series_transformer import (
TIME_SERIES_TRANSFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TimeSeriesTransformerForPrediction,
TimeSeriesTransformerModel,
TimeSeriesTransformerPreTrainedModel,
)
from .models.timesformer import (
TIMESFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TimesformerForVideoClassification,
TimesformerModel,
TimesformerPreTrainedModel,
)
from .models.timm_backbone import TimmBackbone
from .models.trocr import (
TROCR_PRETRAINED_MODEL_ARCHIVE_LIST,
TrOCRForCausalLM,
TrOCRPreTrainedModel,
)
from .models.tvlt import (
TVLT_PRETRAINED_MODEL_ARCHIVE_LIST,
TvltForAudioVisualClassification,
TvltForPreTraining,
TvltModel,
TvltPreTrainedModel,
)
from .models.tvp import (
TVP_PRETRAINED_MODEL_ARCHIVE_LIST,
TvpForVideoGrounding,
TvpModel,
TvpPreTrainedModel,
)
from .models.udop import (
UDOP_PRETRAINED_MODEL_ARCHIVE_LIST,
UdopEncoderModel,
UdopForConditionalGeneration,
UdopModel,
UdopPreTrainedModel,
)
from .models.umt5 import (
UMT5EncoderModel,
UMT5ForConditionalGeneration,
UMT5ForQuestionAnswering,
UMT5ForSequenceClassification,
UMT5ForTokenClassification,
UMT5Model,
UMT5PreTrainedModel,
)
from .models.unispeech import (
UNISPEECH_PRETRAINED_MODEL_ARCHIVE_LIST,
UniSpeechForCTC,
UniSpeechForPreTraining,
UniSpeechForSequenceClassification,
UniSpeechModel,
UniSpeechPreTrainedModel,
)
from .models.unispeech_sat import (
UNISPEECH_SAT_PRETRAINED_MODEL_ARCHIVE_LIST,
UniSpeechSatForAudioFrameClassification,
UniSpeechSatForCTC,
UniSpeechSatForPreTraining,
UniSpeechSatForSequenceClassification,
UniSpeechSatForXVector,
UniSpeechSatModel,
UniSpeechSatPreTrainedModel,
)
from .models.univnet import UNIVNET_PRETRAINED_MODEL_ARCHIVE_LIST, UnivNetModel
from .models.upernet import (
UperNetForSemanticSegmentation,
UperNetPreTrainedModel,
)
from .models.videomae import (
VIDEOMAE_PRETRAINED_MODEL_ARCHIVE_LIST,
VideoMAEForPreTraining,
VideoMAEForVideoClassification,
VideoMAEModel,
VideoMAEPreTrainedModel,
)
from .models.vilt import (
VILT_PRETRAINED_MODEL_ARCHIVE_LIST,
ViltForImageAndTextRetrieval,
ViltForImagesAndTextClassification,
ViltForMaskedLM,
ViltForQuestionAnswering,
ViltForTokenClassification,
ViltLayer,
ViltModel,
ViltPreTrainedModel,
)
from .models.vipllava import (
VIPLLAVA_PRETRAINED_MODEL_ARCHIVE_LIST,
VipLlavaForConditionalGeneration,
VipLlavaPreTrainedModel,
)
from .models.vision_encoder_decoder import VisionEncoderDecoderModel
from .models.vision_text_dual_encoder import VisionTextDualEncoderModel
from .models.visual_bert import (
VISUAL_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
VisualBertForMultipleChoice,
VisualBertForPreTraining,
VisualBertForQuestionAnswering,
VisualBertForRegionToPhraseAlignment,
VisualBertForVisualReasoning,
VisualBertLayer,
VisualBertModel,
VisualBertPreTrainedModel,
)
from .models.vit import (
VIT_PRETRAINED_MODEL_ARCHIVE_LIST,
ViTForImageClassification,
ViTForMaskedImageModeling,
ViTModel,
ViTPreTrainedModel,
)
from .models.vit_hybrid import (
VIT_HYBRID_PRETRAINED_MODEL_ARCHIVE_LIST,
ViTHybridForImageClassification,
ViTHybridModel,
ViTHybridPreTrainedModel,
)
from .models.vit_mae import (
VIT_MAE_PRETRAINED_MODEL_ARCHIVE_LIST,
ViTMAEForPreTraining,
ViTMAELayer,
ViTMAEModel,
ViTMAEPreTrainedModel,
)
from .models.vit_msn import (
VIT_MSN_PRETRAINED_MODEL_ARCHIVE_LIST,
ViTMSNForImageClassification,
ViTMSNModel,
ViTMSNPreTrainedModel,
)
from .models.vitdet import (
VITDET_PRETRAINED_MODEL_ARCHIVE_LIST,
VitDetBackbone,
VitDetModel,
VitDetPreTrainedModel,
)
from .models.vitmatte import (
VITMATTE_PRETRAINED_MODEL_ARCHIVE_LIST,
VitMatteForImageMatting,
VitMattePreTrainedModel,
)
from .models.vits import (
VITS_PRETRAINED_MODEL_ARCHIVE_LIST,
VitsModel,
VitsPreTrainedModel,
)
from .models.vivit import (
VIVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
VivitForVideoClassification,
VivitModel,
VivitPreTrainedModel,
)
from .models.wav2vec2 import (
WAV_2_VEC_2_PRETRAINED_MODEL_ARCHIVE_LIST,
Wav2Vec2ForAudioFrameClassification,
Wav2Vec2ForCTC,
Wav2Vec2ForMaskedLM,
Wav2Vec2ForPreTraining,
Wav2Vec2ForSequenceClassification,
Wav2Vec2ForXVector,
Wav2Vec2Model,
Wav2Vec2PreTrainedModel,
)
from .models.wav2vec2_bert import (
WAV2VEC2_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
Wav2Vec2BertForAudioFrameClassification,
Wav2Vec2BertForCTC,
Wav2Vec2BertForSequenceClassification,
Wav2Vec2BertForXVector,
Wav2Vec2BertModel,
Wav2Vec2BertPreTrainedModel,
)
from .models.wav2vec2_conformer import (
WAV2VEC2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
Wav2Vec2ConformerForAudioFrameClassification,
Wav2Vec2ConformerForCTC,
Wav2Vec2ConformerForPreTraining,
Wav2Vec2ConformerForSequenceClassification,
Wav2Vec2ConformerForXVector,
Wav2Vec2ConformerModel,
Wav2Vec2ConformerPreTrainedModel,
)
from .models.wavlm import (
WAVLM_PRETRAINED_MODEL_ARCHIVE_LIST,
WavLMForAudioFrameClassification,
WavLMForCTC,
WavLMForSequenceClassification,
WavLMForXVector,
WavLMModel,
WavLMPreTrainedModel,
)
from .models.whisper import (
WHISPER_PRETRAINED_MODEL_ARCHIVE_LIST,
WhisperForAudioClassification,
WhisperForCausalLM,
WhisperForConditionalGeneration,
WhisperModel,
WhisperPreTrainedModel,
)
from .models.x_clip import (
XCLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
XCLIPModel,
XCLIPPreTrainedModel,
XCLIPTextModel,
XCLIPVisionModel,
)
from .models.xglm import (
XGLM_PRETRAINED_MODEL_ARCHIVE_LIST,
XGLMForCausalLM,
XGLMModel,
XGLMPreTrainedModel,
)
from .models.xlm import (
XLM_PRETRAINED_MODEL_ARCHIVE_LIST,
XLMForMultipleChoice,
XLMForQuestionAnswering,
XLMForQuestionAnsweringSimple,
XLMForSequenceClassification,
XLMForTokenClassification,
XLMModel,
XLMPreTrainedModel,
XLMWithLMHeadModel,
)
from .models.xlm_prophetnet import (
XLM_PROPHETNET_PRETRAINED_MODEL_ARCHIVE_LIST,
XLMProphetNetDecoder,
XLMProphetNetEncoder,
XLMProphetNetForCausalLM,
XLMProphetNetForConditionalGeneration,
XLMProphetNetModel,
XLMProphetNetPreTrainedModel,
)
from .models.xlm_roberta import (
XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
XLMRobertaForCausalLM,
XLMRobertaForMaskedLM,
XLMRobertaForMultipleChoice,
XLMRobertaForQuestionAnswering,
XLMRobertaForSequenceClassification,
XLMRobertaForTokenClassification,
XLMRobertaModel,
XLMRobertaPreTrainedModel,
)
from .models.xlm_roberta_xl import (
XLM_ROBERTA_XL_PRETRAINED_MODEL_ARCHIVE_LIST,
XLMRobertaXLForCausalLM,
XLMRobertaXLForMaskedLM,
XLMRobertaXLForMultipleChoice,
XLMRobertaXLForQuestionAnswering,
XLMRobertaXLForSequenceClassification,
XLMRobertaXLForTokenClassification,
XLMRobertaXLModel,
XLMRobertaXLPreTrainedModel,
)
from .models.xlnet import (
XLNET_PRETRAINED_MODEL_ARCHIVE_LIST,
XLNetForMultipleChoice,
XLNetForQuestionAnswering,
XLNetForQuestionAnsweringSimple,
XLNetForSequenceClassification,
XLNetForTokenClassification,
XLNetLMHeadModel,
XLNetModel,
XLNetPreTrainedModel,
load_tf_weights_in_xlnet,
)
from .models.xmod import (
XMOD_PRETRAINED_MODEL_ARCHIVE_LIST,
XmodForCausalLM,
XmodForMaskedLM,
XmodForMultipleChoice,
XmodForQuestionAnswering,
XmodForSequenceClassification,
XmodForTokenClassification,
XmodModel,
XmodPreTrainedModel,
)
from .models.yolos import (
YOLOS_PRETRAINED_MODEL_ARCHIVE_LIST,
YolosForObjectDetection,
YolosModel,
YolosPreTrainedModel,
)
from .models.yoso import (
YOSO_PRETRAINED_MODEL_ARCHIVE_LIST,
YosoForMaskedLM,
YosoForMultipleChoice,
YosoForQuestionAnswering,
YosoForSequenceClassification,
YosoForTokenClassification,
YosoLayer,
YosoModel,
YosoPreTrainedModel,
)
# Optimization
from .optimization import (
Adafactor,
AdamW,
get_constant_schedule,
get_constant_schedule_with_warmup,
get_cosine_schedule_with_warmup,
get_cosine_with_hard_restarts_schedule_with_warmup,
get_inverse_sqrt_schedule,
get_linear_schedule_with_warmup,
get_polynomial_decay_schedule_with_warmup,
get_scheduler,
get_wsd_schedule,
)
from .pytorch_utils import Conv1D, apply_chunking_to_forward, prune_layer
# Trainer
from .trainer import Trainer
from .trainer_pt_utils import torch_distributed_zero_first
from .trainer_seq2seq import Seq2SeqTrainer
# TensorFlow
try:
if not is_tf_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
# Import the same objects as dummies to get them in the namespace.
# They will raise an import error if the user tries to instantiate / use them.
from .utils.dummy_tf_objects import *
else:
from .benchmark.benchmark_args_tf import TensorFlowBenchmarkArguments
# Benchmarks
from .benchmark.benchmark_tf import TensorFlowBenchmark
from .generation import (
TFForcedBOSTokenLogitsProcessor,
TFForcedEOSTokenLogitsProcessor,
TFForceTokensLogitsProcessor,
TFGenerationMixin,
TFLogitsProcessor,
TFLogitsProcessorList,
TFLogitsWarper,
TFMinLengthLogitsProcessor,
TFNoBadWordsLogitsProcessor,
TFNoRepeatNGramLogitsProcessor,
TFRepetitionPenaltyLogitsProcessor,
TFSuppressTokensAtBeginLogitsProcessor,
TFSuppressTokensLogitsProcessor,
TFTemperatureLogitsWarper,
TFTopKLogitsWarper,
TFTopPLogitsWarper,
)
from .keras_callbacks import KerasMetricCallback, PushToHubCallback
from .modeling_tf_utils import (
TFPreTrainedModel,
TFSequenceSummary,
TFSharedEmbeddings,
shape_list,
)
# TensorFlow model imports
from .models.albert import (
TF_ALBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFAlbertForMaskedLM,
TFAlbertForMultipleChoice,
TFAlbertForPreTraining,
TFAlbertForQuestionAnswering,
TFAlbertForSequenceClassification,
TFAlbertForTokenClassification,
TFAlbertMainLayer,
TFAlbertModel,
TFAlbertPreTrainedModel,
)
from .models.auto import (
TF_MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING,
TF_MODEL_FOR_CAUSAL_LM_MAPPING,
TF_MODEL_FOR_DOCUMENT_QUESTION_ANSWERING_MAPPING,
TF_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING,
TF_MODEL_FOR_MASK_GENERATION_MAPPING,
TF_MODEL_FOR_MASKED_IMAGE_MODELING_MAPPING,
TF_MODEL_FOR_MASKED_LM_MAPPING,
TF_MODEL_FOR_MULTIPLE_CHOICE_MAPPING,
TF_MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING,
TF_MODEL_FOR_PRETRAINING_MAPPING,
TF_MODEL_FOR_QUESTION_ANSWERING_MAPPING,
TF_MODEL_FOR_SEMANTIC_SEGMENTATION_MAPPING,
TF_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
TF_MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING,
TF_MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING,
TF_MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING,
TF_MODEL_FOR_TEXT_ENCODING_MAPPING,
TF_MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING,
TF_MODEL_FOR_VISION_2_SEQ_MAPPING,
TF_MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING,
TF_MODEL_MAPPING,
TF_MODEL_WITH_LM_HEAD_MAPPING,
TFAutoModel,
TFAutoModelForAudioClassification,
TFAutoModelForCausalLM,
TFAutoModelForDocumentQuestionAnswering,
TFAutoModelForImageClassification,
TFAutoModelForMaskedImageModeling,
TFAutoModelForMaskedLM,
TFAutoModelForMaskGeneration,
TFAutoModelForMultipleChoice,
TFAutoModelForNextSentencePrediction,
TFAutoModelForPreTraining,
TFAutoModelForQuestionAnswering,
TFAutoModelForSemanticSegmentation,
TFAutoModelForSeq2SeqLM,
TFAutoModelForSequenceClassification,
TFAutoModelForSpeechSeq2Seq,
TFAutoModelForTableQuestionAnswering,
TFAutoModelForTextEncoding,
TFAutoModelForTokenClassification,
TFAutoModelForVision2Seq,
TFAutoModelForZeroShotImageClassification,
TFAutoModelWithLMHead,
)
from .models.bart import (
TFBartForConditionalGeneration,
TFBartForSequenceClassification,
TFBartModel,
TFBartPretrainedModel,
)
from .models.bert import (
TF_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFBertEmbeddings,
TFBertForMaskedLM,
TFBertForMultipleChoice,
TFBertForNextSentencePrediction,
TFBertForPreTraining,
TFBertForQuestionAnswering,
TFBertForSequenceClassification,
TFBertForTokenClassification,
TFBertLMHeadModel,
TFBertMainLayer,
TFBertModel,
TFBertPreTrainedModel,
)
from .models.blenderbot import (
TFBlenderbotForConditionalGeneration,
TFBlenderbotModel,
TFBlenderbotPreTrainedModel,
)
from .models.blenderbot_small import (
TFBlenderbotSmallForConditionalGeneration,
TFBlenderbotSmallModel,
TFBlenderbotSmallPreTrainedModel,
)
from .models.blip import (
TF_BLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
TFBlipForConditionalGeneration,
TFBlipForImageTextRetrieval,
TFBlipForQuestionAnswering,
TFBlipModel,
TFBlipPreTrainedModel,
TFBlipTextModel,
TFBlipVisionModel,
)
from .models.camembert import (
TF_CAMEMBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFCamembertForCausalLM,
TFCamembertForMaskedLM,
TFCamembertForMultipleChoice,
TFCamembertForQuestionAnswering,
TFCamembertForSequenceClassification,
TFCamembertForTokenClassification,
TFCamembertModel,
TFCamembertPreTrainedModel,
)
from .models.clip import (
TF_CLIP_PRETRAINED_MODEL_ARCHIVE_LIST,
TFCLIPModel,
TFCLIPPreTrainedModel,
TFCLIPTextModel,
TFCLIPVisionModel,
)
from .models.convbert import (
TF_CONVBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFConvBertForMaskedLM,
TFConvBertForMultipleChoice,
TFConvBertForQuestionAnswering,
TFConvBertForSequenceClassification,
TFConvBertForTokenClassification,
TFConvBertLayer,
TFConvBertModel,
TFConvBertPreTrainedModel,
)
from .models.convnext import (
TFConvNextForImageClassification,
TFConvNextModel,
TFConvNextPreTrainedModel,
)
from .models.convnextv2 import (
TFConvNextV2ForImageClassification,
TFConvNextV2Model,
TFConvNextV2PreTrainedModel,
)
from .models.ctrl import (
TF_CTRL_PRETRAINED_MODEL_ARCHIVE_LIST,
TFCTRLForSequenceClassification,
TFCTRLLMHeadModel,
TFCTRLModel,
TFCTRLPreTrainedModel,
)
from .models.cvt import (
TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFCvtForImageClassification,
TFCvtModel,
TFCvtPreTrainedModel,
)
from .models.data2vec import (
TFData2VecVisionForImageClassification,
TFData2VecVisionForSemanticSegmentation,
TFData2VecVisionModel,
TFData2VecVisionPreTrainedModel,
)
from .models.deberta import (
TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
TFDebertaForMaskedLM,
TFDebertaForQuestionAnswering,
TFDebertaForSequenceClassification,
TFDebertaForTokenClassification,
TFDebertaModel,
TFDebertaPreTrainedModel,
)
from .models.deberta_v2 import (
TF_DEBERTA_V2_PRETRAINED_MODEL_ARCHIVE_LIST,
TFDebertaV2ForMaskedLM,
TFDebertaV2ForMultipleChoice,
TFDebertaV2ForQuestionAnswering,
TFDebertaV2ForSequenceClassification,
TFDebertaV2ForTokenClassification,
TFDebertaV2Model,
TFDebertaV2PreTrainedModel,
)
from .models.deit import (
TF_DEIT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFDeiTForImageClassification,
TFDeiTForImageClassificationWithTeacher,
TFDeiTForMaskedImageModeling,
TFDeiTModel,
TFDeiTPreTrainedModel,
)
from .models.deprecated.transfo_xl import (
TF_TRANSFO_XL_PRETRAINED_MODEL_ARCHIVE_LIST,
TFAdaptiveEmbedding,
TFTransfoXLForSequenceClassification,
TFTransfoXLLMHeadModel,
TFTransfoXLMainLayer,
TFTransfoXLModel,
TFTransfoXLPreTrainedModel,
)
from .models.distilbert import (
TF_DISTILBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFDistilBertForMaskedLM,
TFDistilBertForMultipleChoice,
TFDistilBertForQuestionAnswering,
TFDistilBertForSequenceClassification,
TFDistilBertForTokenClassification,
TFDistilBertMainLayer,
TFDistilBertModel,
TFDistilBertPreTrainedModel,
)
from .models.dpr import (
TF_DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
TF_DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
TF_DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFDPRContextEncoder,
TFDPRPretrainedContextEncoder,
TFDPRPretrainedQuestionEncoder,
TFDPRPretrainedReader,
TFDPRQuestionEncoder,
TFDPRReader,
)
from .models.efficientformer import (
TF_EFFICIENTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFEfficientFormerForImageClassification,
TFEfficientFormerForImageClassificationWithTeacher,
TFEfficientFormerModel,
TFEfficientFormerPreTrainedModel,
)
from .models.electra import (
TF_ELECTRA_PRETRAINED_MODEL_ARCHIVE_LIST,
TFElectraForMaskedLM,
TFElectraForMultipleChoice,
TFElectraForPreTraining,
TFElectraForQuestionAnswering,
TFElectraForSequenceClassification,
TFElectraForTokenClassification,
TFElectraModel,
TFElectraPreTrainedModel,
)
from .models.encoder_decoder import TFEncoderDecoderModel
from .models.esm import (
ESM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFEsmForMaskedLM,
TFEsmForSequenceClassification,
TFEsmForTokenClassification,
TFEsmModel,
TFEsmPreTrainedModel,
)
from .models.flaubert import (
TF_FLAUBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFFlaubertForMultipleChoice,
TFFlaubertForQuestionAnsweringSimple,
TFFlaubertForSequenceClassification,
TFFlaubertForTokenClassification,
TFFlaubertModel,
TFFlaubertPreTrainedModel,
TFFlaubertWithLMHeadModel,
)
from .models.funnel import (
TF_FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST,
TFFunnelBaseModel,
TFFunnelForMaskedLM,
TFFunnelForMultipleChoice,
TFFunnelForPreTraining,
TFFunnelForQuestionAnswering,
TFFunnelForSequenceClassification,
TFFunnelForTokenClassification,
TFFunnelModel,
TFFunnelPreTrainedModel,
)
from .models.gpt2 import (
TF_GPT2_PRETRAINED_MODEL_ARCHIVE_LIST,
TFGPT2DoubleHeadsModel,
TFGPT2ForSequenceClassification,
TFGPT2LMHeadModel,
TFGPT2MainLayer,
TFGPT2Model,
TFGPT2PreTrainedModel,
)
from .models.gptj import (
TFGPTJForCausalLM,
TFGPTJForQuestionAnswering,
TFGPTJForSequenceClassification,
TFGPTJModel,
TFGPTJPreTrainedModel,
)
from .models.groupvit import (
TF_GROUPVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFGroupViTModel,
TFGroupViTPreTrainedModel,
TFGroupViTTextModel,
TFGroupViTVisionModel,
)
from .models.hubert import (
TF_HUBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFHubertForCTC,
TFHubertModel,
TFHubertPreTrainedModel,
)
from .models.layoutlm import (
TF_LAYOUTLM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFLayoutLMForMaskedLM,
TFLayoutLMForQuestionAnswering,
TFLayoutLMForSequenceClassification,
TFLayoutLMForTokenClassification,
TFLayoutLMMainLayer,
TFLayoutLMModel,
TFLayoutLMPreTrainedModel,
)
from .models.layoutlmv3 import (
TF_LAYOUTLMV3_PRETRAINED_MODEL_ARCHIVE_LIST,
TFLayoutLMv3ForQuestionAnswering,
TFLayoutLMv3ForSequenceClassification,
TFLayoutLMv3ForTokenClassification,
TFLayoutLMv3Model,
TFLayoutLMv3PreTrainedModel,
)
from .models.led import (
TFLEDForConditionalGeneration,
TFLEDModel,
TFLEDPreTrainedModel,
)
from .models.longformer import (
TF_LONGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFLongformerForMaskedLM,
TFLongformerForMultipleChoice,
TFLongformerForQuestionAnswering,
TFLongformerForSequenceClassification,
TFLongformerForTokenClassification,
TFLongformerModel,
TFLongformerPreTrainedModel,
TFLongformerSelfAttention,
)
from .models.lxmert import (
TF_LXMERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFLxmertForPreTraining,
TFLxmertMainLayer,
TFLxmertModel,
TFLxmertPreTrainedModel,
TFLxmertVisualFeatureEncoder,
)
from .models.marian import (
TFMarianModel,
TFMarianMTModel,
TFMarianPreTrainedModel,
)
from .models.mbart import (
TFMBartForConditionalGeneration,
TFMBartModel,
TFMBartPreTrainedModel,
)
from .models.mobilebert import (
TF_MOBILEBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFMobileBertForMaskedLM,
TFMobileBertForMultipleChoice,
TFMobileBertForNextSentencePrediction,
TFMobileBertForPreTraining,
TFMobileBertForQuestionAnswering,
TFMobileBertForSequenceClassification,
TFMobileBertForTokenClassification,
TFMobileBertMainLayer,
TFMobileBertModel,
TFMobileBertPreTrainedModel,
)
from .models.mobilevit import (
TF_MOBILEVIT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFMobileViTForImageClassification,
TFMobileViTForSemanticSegmentation,
TFMobileViTModel,
TFMobileViTPreTrainedModel,
)
from .models.mpnet import (
TF_MPNET_PRETRAINED_MODEL_ARCHIVE_LIST,
TFMPNetForMaskedLM,
TFMPNetForMultipleChoice,
TFMPNetForQuestionAnswering,
TFMPNetForSequenceClassification,
TFMPNetForTokenClassification,
TFMPNetMainLayer,
TFMPNetModel,
TFMPNetPreTrainedModel,
)
from .models.mt5 import (
TFMT5EncoderModel,
TFMT5ForConditionalGeneration,
TFMT5Model,
)
from .models.openai import (
TF_OPENAI_GPT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFOpenAIGPTDoubleHeadsModel,
TFOpenAIGPTForSequenceClassification,
TFOpenAIGPTLMHeadModel,
TFOpenAIGPTMainLayer,
TFOpenAIGPTModel,
TFOpenAIGPTPreTrainedModel,
)
from .models.opt import TFOPTForCausalLM, TFOPTModel, TFOPTPreTrainedModel
from .models.pegasus import (
TFPegasusForConditionalGeneration,
TFPegasusModel,
TFPegasusPreTrainedModel,
)
from .models.rag import (
TFRagModel,
TFRagPreTrainedModel,
TFRagSequenceForGeneration,
TFRagTokenForGeneration,
)
from .models.regnet import (
TF_REGNET_PRETRAINED_MODEL_ARCHIVE_LIST,
TFRegNetForImageClassification,
TFRegNetModel,
TFRegNetPreTrainedModel,
)
from .models.rembert import (
TF_REMBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFRemBertForCausalLM,
TFRemBertForMaskedLM,
TFRemBertForMultipleChoice,
TFRemBertForQuestionAnswering,
TFRemBertForSequenceClassification,
TFRemBertForTokenClassification,
TFRemBertLayer,
TFRemBertModel,
TFRemBertPreTrainedModel,
)
from .models.resnet import (
TF_RESNET_PRETRAINED_MODEL_ARCHIVE_LIST,
TFResNetForImageClassification,
TFResNetModel,
TFResNetPreTrainedModel,
)
from .models.roberta import (
TF_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
TFRobertaForCausalLM,
TFRobertaForMaskedLM,
TFRobertaForMultipleChoice,
TFRobertaForQuestionAnswering,
TFRobertaForSequenceClassification,
TFRobertaForTokenClassification,
TFRobertaMainLayer,
TFRobertaModel,
TFRobertaPreTrainedModel,
)
from .models.roberta_prelayernorm import (
TF_ROBERTA_PRELAYERNORM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFRobertaPreLayerNormForCausalLM,
TFRobertaPreLayerNormForMaskedLM,
TFRobertaPreLayerNormForMultipleChoice,
TFRobertaPreLayerNormForQuestionAnswering,
TFRobertaPreLayerNormForSequenceClassification,
TFRobertaPreLayerNormForTokenClassification,
TFRobertaPreLayerNormMainLayer,
TFRobertaPreLayerNormModel,
TFRobertaPreLayerNormPreTrainedModel,
)
from .models.roformer import (
TF_ROFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFRoFormerForCausalLM,
TFRoFormerForMaskedLM,
TFRoFormerForMultipleChoice,
TFRoFormerForQuestionAnswering,
TFRoFormerForSequenceClassification,
TFRoFormerForTokenClassification,
TFRoFormerLayer,
TFRoFormerModel,
TFRoFormerPreTrainedModel,
)
from .models.sam import (
TF_SAM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFSamModel,
TFSamPreTrainedModel,
)
from .models.segformer import (
TF_SEGFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFSegformerDecodeHead,
TFSegformerForImageClassification,
TFSegformerForSemanticSegmentation,
TFSegformerModel,
TFSegformerPreTrainedModel,
)
from .models.speech_to_text import (
TF_SPEECH_TO_TEXT_PRETRAINED_MODEL_ARCHIVE_LIST,
TFSpeech2TextForConditionalGeneration,
TFSpeech2TextModel,
TFSpeech2TextPreTrainedModel,
)
from .models.swiftformer import (
TF_SWIFTFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFSwiftFormerForImageClassification,
TFSwiftFormerModel,
TFSwiftFormerPreTrainedModel,
)
from .models.swin import (
TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
TFSwinForImageClassification,
TFSwinForMaskedImageModeling,
TFSwinModel,
TFSwinPreTrainedModel,
)
from .models.t5 import (
TF_T5_PRETRAINED_MODEL_ARCHIVE_LIST,
TFT5EncoderModel,
TFT5ForConditionalGeneration,
TFT5Model,
TFT5PreTrainedModel,
)
from .models.tapas import (
TF_TAPAS_PRETRAINED_MODEL_ARCHIVE_LIST,
TFTapasForMaskedLM,
TFTapasForQuestionAnswering,
TFTapasForSequenceClassification,
TFTapasModel,
TFTapasPreTrainedModel,
)
from .models.vision_encoder_decoder import TFVisionEncoderDecoderModel
from .models.vision_text_dual_encoder import TFVisionTextDualEncoderModel
from .models.vit import (
TFViTForImageClassification,
TFViTModel,
TFViTPreTrainedModel,
)
from .models.vit_mae import (
TFViTMAEForPreTraining,
TFViTMAEModel,
TFViTMAEPreTrainedModel,
)
from .models.wav2vec2 import (
TF_WAV_2_VEC_2_PRETRAINED_MODEL_ARCHIVE_LIST,
TFWav2Vec2ForCTC,
TFWav2Vec2ForSequenceClassification,
TFWav2Vec2Model,
TFWav2Vec2PreTrainedModel,
)
from .models.whisper import (
TF_WHISPER_PRETRAINED_MODEL_ARCHIVE_LIST,
TFWhisperForConditionalGeneration,
TFWhisperModel,
TFWhisperPreTrainedModel,
)
from .models.xglm import (
TF_XGLM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFXGLMForCausalLM,
TFXGLMModel,
TFXGLMPreTrainedModel,
)
from .models.xlm import (
TF_XLM_PRETRAINED_MODEL_ARCHIVE_LIST,
TFXLMForMultipleChoice,
TFXLMForQuestionAnsweringSimple,
TFXLMForSequenceClassification,
TFXLMForTokenClassification,
TFXLMMainLayer,
TFXLMModel,
TFXLMPreTrainedModel,
TFXLMWithLMHeadModel,
)
from .models.xlm_roberta import (
TF_XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
TFXLMRobertaForCausalLM,
TFXLMRobertaForMaskedLM,
TFXLMRobertaForMultipleChoice,
TFXLMRobertaForQuestionAnswering,
TFXLMRobertaForSequenceClassification,
TFXLMRobertaForTokenClassification,
TFXLMRobertaModel,
TFXLMRobertaPreTrainedModel,
)
from .models.xlnet import (
TF_XLNET_PRETRAINED_MODEL_ARCHIVE_LIST,
TFXLNetForMultipleChoice,
TFXLNetForQuestionAnsweringSimple,
TFXLNetForSequenceClassification,
TFXLNetForTokenClassification,
TFXLNetLMHeadModel,
TFXLNetMainLayer,
TFXLNetModel,
TFXLNetPreTrainedModel,
)
# Optimization
from .optimization_tf import (
AdamWeightDecay,
GradientAccumulator,
WarmUp,
create_optimizer,
)
try:
if not (
is_librosa_available()
and is_essentia_available()
and is_scipy_available()
and is_torch_available()
and is_pretty_midi_available()
):
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_essentia_and_librosa_and_pretty_midi_and_scipy_and_torch_objects import *
else:
from .models.pop2piano import (
Pop2PianoFeatureExtractor,
Pop2PianoProcessor,
Pop2PianoTokenizer,
)
try:
if not is_torchaudio_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
from .utils.dummy_torchaudio_objects import *
else:
from .models.musicgen_melody import MusicgenMelodyFeatureExtractor, MusicgenMelodyProcessor
try:
if not is_flax_available():
raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
# Import the same objects as dummies to get them in the namespace.
# They will raise an import error if the user tries to instantiate / use them.
from .utils.dummy_flax_objects import *
else:
from .generation import (
FlaxForcedBOSTokenLogitsProcessor,
FlaxForcedEOSTokenLogitsProcessor,
FlaxForceTokensLogitsProcessor,
FlaxGenerationMixin,
FlaxLogitsProcessor,
FlaxLogitsProcessorList,
FlaxLogitsWarper,
FlaxMinLengthLogitsProcessor,
FlaxSuppressTokensAtBeginLogitsProcessor,
FlaxSuppressTokensLogitsProcessor,
FlaxTemperatureLogitsWarper,
FlaxTopKLogitsWarper,
FlaxTopPLogitsWarper,
FlaxWhisperTimeStampLogitsProcessor,
)
from .modeling_flax_utils import FlaxPreTrainedModel
# Flax model imports
from .models.albert import (
FlaxAlbertForMaskedLM,
FlaxAlbertForMultipleChoice,
FlaxAlbertForPreTraining,
FlaxAlbertForQuestionAnswering,
FlaxAlbertForSequenceClassification,
FlaxAlbertForTokenClassification,
FlaxAlbertModel,
FlaxAlbertPreTrainedModel,
)
from .models.auto import (
FLAX_MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING,
FLAX_MODEL_FOR_CAUSAL_LM_MAPPING,
FLAX_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING,
FLAX_MODEL_FOR_MASKED_LM_MAPPING,
FLAX_MODEL_FOR_MULTIPLE_CHOICE_MAPPING,
FLAX_MODEL_FOR_NEXT_SENTENCE_PREDICTION_MAPPING,
FLAX_MODEL_FOR_PRETRAINING_MAPPING,
FLAX_MODEL_FOR_QUESTION_ANSWERING_MAPPING,
FLAX_MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING,
FLAX_MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING,
FLAX_MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING,
FLAX_MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING,
FLAX_MODEL_FOR_VISION_2_SEQ_MAPPING,
FLAX_MODEL_MAPPING,
FlaxAutoModel,
FlaxAutoModelForCausalLM,
FlaxAutoModelForImageClassification,
FlaxAutoModelForMaskedLM,
FlaxAutoModelForMultipleChoice,
FlaxAutoModelForNextSentencePrediction,
FlaxAutoModelForPreTraining,
FlaxAutoModelForQuestionAnswering,
FlaxAutoModelForSeq2SeqLM,
FlaxAutoModelForSequenceClassification,
FlaxAutoModelForSpeechSeq2Seq,
FlaxAutoModelForTokenClassification,
FlaxAutoModelForVision2Seq,
)
from .models.bart import (
FlaxBartDecoderPreTrainedModel,
FlaxBartForCausalLM,
FlaxBartForConditionalGeneration,
FlaxBartForQuestionAnswering,
FlaxBartForSequenceClassification,
FlaxBartModel,
FlaxBartPreTrainedModel,
)
from .models.beit import (
FlaxBeitForImageClassification,
FlaxBeitForMaskedImageModeling,
FlaxBeitModel,
FlaxBeitPreTrainedModel,
)
from .models.bert import (
FlaxBertForCausalLM,
FlaxBertForMaskedLM,
FlaxBertForMultipleChoice,
FlaxBertForNextSentencePrediction,
FlaxBertForPreTraining,
FlaxBertForQuestionAnswering,
FlaxBertForSequenceClassification,
FlaxBertForTokenClassification,
FlaxBertModel,
FlaxBertPreTrainedModel,
)
from .models.big_bird import (
FlaxBigBirdForCausalLM,
FlaxBigBirdForMaskedLM,
FlaxBigBirdForMultipleChoice,
FlaxBigBirdForPreTraining,
FlaxBigBirdForQuestionAnswering,
FlaxBigBirdForSequenceClassification,
FlaxBigBirdForTokenClassification,
FlaxBigBirdModel,
FlaxBigBirdPreTrainedModel,
)
from .models.blenderbot import (
FlaxBlenderbotForConditionalGeneration,
FlaxBlenderbotModel,
FlaxBlenderbotPreTrainedModel,
)
from .models.blenderbot_small import (
FlaxBlenderbotSmallForConditionalGeneration,
FlaxBlenderbotSmallModel,
FlaxBlenderbotSmallPreTrainedModel,
)
from .models.bloom import (
FlaxBloomForCausalLM,
FlaxBloomModel,
FlaxBloomPreTrainedModel,
)
from .models.clip import (
FlaxCLIPModel,
FlaxCLIPPreTrainedModel,
FlaxCLIPTextModel,
FlaxCLIPTextModelWithProjection,
FlaxCLIPTextPreTrainedModel,
FlaxCLIPVisionModel,
FlaxCLIPVisionPreTrainedModel,
)
from .models.distilbert import (
FlaxDistilBertForMaskedLM,
FlaxDistilBertForMultipleChoice,
FlaxDistilBertForQuestionAnswering,
FlaxDistilBertForSequenceClassification,
FlaxDistilBertForTokenClassification,
FlaxDistilBertModel,
FlaxDistilBertPreTrainedModel,
)
from .models.electra import (
FlaxElectraForCausalLM,
FlaxElectraForMaskedLM,
FlaxElectraForMultipleChoice,
FlaxElectraForPreTraining,
FlaxElectraForQuestionAnswering,
FlaxElectraForSequenceClassification,
FlaxElectraForTokenClassification,
FlaxElectraModel,
FlaxElectraPreTrainedModel,
)
from .models.encoder_decoder import FlaxEncoderDecoderModel
from .models.gemma import (
FlaxGemmaForCausalLM,
FlaxGemmaModel,
FlaxGemmaPreTrainedModel,
)
from .models.gpt2 import (
FlaxGPT2LMHeadModel,
FlaxGPT2Model,
FlaxGPT2PreTrainedModel,
)
from .models.gpt_neo import (
FlaxGPTNeoForCausalLM,
FlaxGPTNeoModel,
FlaxGPTNeoPreTrainedModel,
)
from .models.gptj import (
FlaxGPTJForCausalLM,
FlaxGPTJModel,
FlaxGPTJPreTrainedModel,
)
from .models.llama import (
FlaxLlamaForCausalLM,
FlaxLlamaModel,
FlaxLlamaPreTrainedModel,
)
from .models.longt5 import (
FlaxLongT5ForConditionalGeneration,
FlaxLongT5Model,
FlaxLongT5PreTrainedModel,
)
from .models.marian import (
FlaxMarianModel,
FlaxMarianMTModel,
FlaxMarianPreTrainedModel,
)
from .models.mbart import (
FlaxMBartForConditionalGeneration,
FlaxMBartForQuestionAnswering,
FlaxMBartForSequenceClassification,
FlaxMBartModel,
FlaxMBartPreTrainedModel,
)
from .models.mistral import (
FlaxMistralForCausalLM,
FlaxMistralModel,
FlaxMistralPreTrainedModel,
)
from .models.mt5 import (
FlaxMT5EncoderModel,
FlaxMT5ForConditionalGeneration,
FlaxMT5Model,
)
from .models.opt import FlaxOPTForCausalLM, FlaxOPTModel, FlaxOPTPreTrainedModel
from .models.pegasus import (
FlaxPegasusForConditionalGeneration,
FlaxPegasusModel,
FlaxPegasusPreTrainedModel,
)
from .models.regnet import (
FlaxRegNetForImageClassification,
FlaxRegNetModel,
FlaxRegNetPreTrainedModel,
)
from .models.resnet import (
FlaxResNetForImageClassification,
FlaxResNetModel,
FlaxResNetPreTrainedModel,
)
from .models.roberta import (
FlaxRobertaForCausalLM,
FlaxRobertaForMaskedLM,
FlaxRobertaForMultipleChoice,
FlaxRobertaForQuestionAnswering,
FlaxRobertaForSequenceClassification,
FlaxRobertaForTokenClassification,
FlaxRobertaModel,
FlaxRobertaPreTrainedModel,
)
from .models.roberta_prelayernorm import (
FlaxRobertaPreLayerNormForCausalLM,
FlaxRobertaPreLayerNormForMaskedLM,
FlaxRobertaPreLayerNormForMultipleChoice,
FlaxRobertaPreLayerNormForQuestionAnswering,
FlaxRobertaPreLayerNormForSequenceClassification,
FlaxRobertaPreLayerNormForTokenClassification,
FlaxRobertaPreLayerNormModel,
FlaxRobertaPreLayerNormPreTrainedModel,
)
from .models.roformer import (
FlaxRoFormerForMaskedLM,
FlaxRoFormerForMultipleChoice,
FlaxRoFormerForQuestionAnswering,
FlaxRoFormerForSequenceClassification,
FlaxRoFormerForTokenClassification,
FlaxRoFormerModel,
FlaxRoFormerPreTrainedModel,
)
from .models.speech_encoder_decoder import FlaxSpeechEncoderDecoderModel
from .models.t5 import (
FlaxT5EncoderModel,
FlaxT5ForConditionalGeneration,
FlaxT5Model,
FlaxT5PreTrainedModel,
)
from .models.vision_encoder_decoder import FlaxVisionEncoderDecoderModel
from .models.vision_text_dual_encoder import FlaxVisionTextDualEncoderModel
from .models.vit import (
FlaxViTForImageClassification,
FlaxViTModel,
FlaxViTPreTrainedModel,
)
from .models.wav2vec2 import (
FlaxWav2Vec2ForCTC,
FlaxWav2Vec2ForPreTraining,
FlaxWav2Vec2Model,
FlaxWav2Vec2PreTrainedModel,
)
from .models.whisper import (
FlaxWhisperForAudioClassification,
FlaxWhisperForConditionalGeneration,
FlaxWhisperModel,
FlaxWhisperPreTrainedModel,
)
from .models.xglm import (
FlaxXGLMForCausalLM,
FlaxXGLMModel,
FlaxXGLMPreTrainedModel,
)
from .models.xlm_roberta import (
FLAX_XLM_ROBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
FlaxXLMRobertaForCausalLM,
FlaxXLMRobertaForMaskedLM,
FlaxXLMRobertaForMultipleChoice,
FlaxXLMRobertaForQuestionAnswering,
FlaxXLMRobertaForSequenceClassification,
FlaxXLMRobertaForTokenClassification,
FlaxXLMRobertaModel,
FlaxXLMRobertaPreTrainedModel,
)
else:
import sys
sys.modules[__name__] = _LazyModule(
__name__,
globals()["__file__"],
_import_structure,
module_spec=__spec__,
extra_objects={"__version__": __version__},
)
if not is_tf_available() and not is_torch_available() and not is_flax_available():
logger.warning_advice(
"None of PyTorch, TensorFlow >= 2.0, or Flax have been found. "
"Models won't be available and only tokenizers, configuration "
"and file/data utilities can be used."
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/hf_argparser.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import dataclasses
import json
import os
import sys
import types
from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser, ArgumentTypeError
from copy import copy
from enum import Enum
from inspect import isclass
from pathlib import Path
from typing import Any, Callable, Dict, Iterable, List, Literal, NewType, Optional, Tuple, Union, get_type_hints
import yaml
DataClass = NewType("DataClass", Any)
DataClassType = NewType("DataClassType", Any)
# From https://stackoverflow.com/questions/15008758/parsing-boolean-values-with-argparse
def string_to_bool(v):
if isinstance(v, bool):
return v
if v.lower() in ("yes", "true", "t", "y", "1"):
return True
elif v.lower() in ("no", "false", "f", "n", "0"):
return False
else:
raise ArgumentTypeError(
f"Truthy value expected: got {v} but expected one of yes/no, true/false, t/f, y/n, 1/0 (case insensitive)."
)
def make_choice_type_function(choices: list) -> Callable[[str], Any]:
"""
Creates a mapping function from each choices string representation to the actual value. Used to support multiple
value types for a single argument.
Args:
choices (list): List of choices.
Returns:
Callable[[str], Any]: Mapping function from string representation to actual value for each choice.
"""
str_to_choice = {str(choice): choice for choice in choices}
return lambda arg: str_to_choice.get(arg, arg)
def HfArg(
*,
aliases: Union[str, List[str]] = None,
help: str = None,
default: Any = dataclasses.MISSING,
default_factory: Callable[[], Any] = dataclasses.MISSING,
metadata: dict = None,
**kwargs,
) -> dataclasses.Field:
"""Argument helper enabling a concise syntax to create dataclass fields for parsing with `HfArgumentParser`.
Example comparing the use of `HfArg` and `dataclasses.field`:
```
@dataclass
class Args:
regular_arg: str = dataclasses.field(default="Huggingface", metadata={"aliases": ["--example", "-e"], "help": "This syntax could be better!"})
hf_arg: str = HfArg(default="Huggingface", aliases=["--example", "-e"], help="What a nice syntax!")
```
Args:
aliases (Union[str, List[str]], optional):
Single string or list of strings of aliases to pass on to argparse, e.g. `aliases=["--example", "-e"]`.
Defaults to None.
help (str, optional): Help string to pass on to argparse that can be displayed with --help. Defaults to None.
default (Any, optional):
Default value for the argument. If not default or default_factory is specified, the argument is required.
Defaults to dataclasses.MISSING.
default_factory (Callable[[], Any], optional):
The default_factory is a 0-argument function called to initialize a field's value. It is useful to provide
default values for mutable types, e.g. lists: `default_factory=list`. Mutually exclusive with `default=`.
Defaults to dataclasses.MISSING.
metadata (dict, optional): Further metadata to pass on to `dataclasses.field`. Defaults to None.
Returns:
Field: A `dataclasses.Field` with the desired properties.
"""
if metadata is None:
# Important, don't use as default param in function signature because dict is mutable and shared across function calls
metadata = {}
if aliases is not None:
metadata["aliases"] = aliases
if help is not None:
metadata["help"] = help
return dataclasses.field(metadata=metadata, default=default, default_factory=default_factory, **kwargs)
class HfArgumentParser(ArgumentParser):
"""
This subclass of `argparse.ArgumentParser` uses type hints on dataclasses to generate arguments.
The class is designed to play well with the native argparse. In particular, you can add more (non-dataclass backed)
arguments to the parser after initialization and you'll get the output back after parsing as an additional
namespace. Optional: To create sub argument groups use the `_argument_group_name` attribute in the dataclass.
"""
dataclass_types: Iterable[DataClassType]
def __init__(self, dataclass_types: Union[DataClassType, Iterable[DataClassType]], **kwargs):
"""
Args:
dataclass_types:
Dataclass type, or list of dataclass types for which we will "fill" instances with the parsed args.
kwargs (`Dict[str, Any]`, *optional*):
Passed to `argparse.ArgumentParser()` in the regular way.
"""
# To make the default appear when using --help
if "formatter_class" not in kwargs:
kwargs["formatter_class"] = ArgumentDefaultsHelpFormatter
super().__init__(**kwargs)
if dataclasses.is_dataclass(dataclass_types):
dataclass_types = [dataclass_types]
self.dataclass_types = list(dataclass_types)
for dtype in self.dataclass_types:
self._add_dataclass_arguments(dtype)
@staticmethod
def _parse_dataclass_field(parser: ArgumentParser, field: dataclasses.Field):
field_name = f"--{field.name}"
kwargs = field.metadata.copy()
# field.metadata is not used at all by Data Classes,
# it is provided as a third-party extension mechanism.
if isinstance(field.type, str):
raise RuntimeError(
"Unresolved type detected, which should have been done with the help of "
"`typing.get_type_hints` method by default"
)
aliases = kwargs.pop("aliases", [])
if isinstance(aliases, str):
aliases = [aliases]
origin_type = getattr(field.type, "__origin__", field.type)
if origin_type is Union or (hasattr(types, "UnionType") and isinstance(origin_type, types.UnionType)):
if str not in field.type.__args__ and (
len(field.type.__args__) != 2 or type(None) not in field.type.__args__
):
raise ValueError(
"Only `Union[X, NoneType]` (i.e., `Optional[X]`) is allowed for `Union` because"
" the argument parser only supports one type per argument."
f" Problem encountered in field '{field.name}'."
)
if type(None) not in field.type.__args__:
# filter `str` in Union
field.type = field.type.__args__[0] if field.type.__args__[1] == str else field.type.__args__[1]
origin_type = getattr(field.type, "__origin__", field.type)
elif bool not in field.type.__args__:
# filter `NoneType` in Union (except for `Union[bool, NoneType]`)
field.type = (
field.type.__args__[0] if isinstance(None, field.type.__args__[1]) else field.type.__args__[1]
)
origin_type = getattr(field.type, "__origin__", field.type)
# A variable to store kwargs for a boolean field, if needed
# so that we can init a `no_*` complement argument (see below)
bool_kwargs = {}
if origin_type is Literal or (isinstance(field.type, type) and issubclass(field.type, Enum)):
if origin_type is Literal:
kwargs["choices"] = field.type.__args__
else:
kwargs["choices"] = [x.value for x in field.type]
kwargs["type"] = make_choice_type_function(kwargs["choices"])
if field.default is not dataclasses.MISSING:
kwargs["default"] = field.default
else:
kwargs["required"] = True
elif field.type is bool or field.type == Optional[bool]:
# Copy the currect kwargs to use to instantiate a `no_*` complement argument below.
# We do not initialize it here because the `no_*` alternative must be instantiated after the real argument
bool_kwargs = copy(kwargs)
# Hack because type=bool in argparse does not behave as we want.
kwargs["type"] = string_to_bool
if field.type is bool or (field.default is not None and field.default is not dataclasses.MISSING):
# Default value is False if we have no default when of type bool.
default = False if field.default is dataclasses.MISSING else field.default
# This is the value that will get picked if we don't include --field_name in any way
kwargs["default"] = default
# This tells argparse we accept 0 or 1 value after --field_name
kwargs["nargs"] = "?"
# This is the value that will get picked if we do --field_name (without value)
kwargs["const"] = True
elif isclass(origin_type) and issubclass(origin_type, list):
kwargs["type"] = field.type.__args__[0]
kwargs["nargs"] = "+"
if field.default_factory is not dataclasses.MISSING:
kwargs["default"] = field.default_factory()
elif field.default is dataclasses.MISSING:
kwargs["required"] = True
else:
kwargs["type"] = field.type
if field.default is not dataclasses.MISSING:
kwargs["default"] = field.default
elif field.default_factory is not dataclasses.MISSING:
kwargs["default"] = field.default_factory()
else:
kwargs["required"] = True
parser.add_argument(field_name, *aliases, **kwargs)
# Add a complement `no_*` argument for a boolean field AFTER the initial field has already been added.
# Order is important for arguments with the same destination!
# We use a copy of earlier kwargs because the original kwargs have changed a lot before reaching down
# here and we do not need those changes/additional keys.
if field.default is True and (field.type is bool or field.type == Optional[bool]):
bool_kwargs["default"] = False
parser.add_argument(f"--no_{field.name}", action="store_false", dest=field.name, **bool_kwargs)
def _add_dataclass_arguments(self, dtype: DataClassType):
if hasattr(dtype, "_argument_group_name"):
parser = self.add_argument_group(dtype._argument_group_name)
else:
parser = self
try:
type_hints: Dict[str, type] = get_type_hints(dtype)
except NameError:
raise RuntimeError(
f"Type resolution failed for {dtype}. Try declaring the class in global scope or "
"removing line of `from __future__ import annotations` which opts in Postponed "
"Evaluation of Annotations (PEP 563)"
)
except TypeError as ex:
# Remove this block when we drop Python 3.9 support
if sys.version_info[:2] < (3, 10) and "unsupported operand type(s) for |" in str(ex):
python_version = ".".join(map(str, sys.version_info[:3]))
raise RuntimeError(
f"Type resolution failed for {dtype} on Python {python_version}. Try removing "
"line of `from __future__ import annotations` which opts in union types as "
"`X | Y` (PEP 604) via Postponed Evaluation of Annotations (PEP 563). To "
"support Python versions that lower than 3.10, you need to use "
"`typing.Union[X, Y]` instead of `X | Y` and `typing.Optional[X]` instead of "
"`X | None`."
) from ex
raise
for field in dataclasses.fields(dtype):
if not field.init:
continue
field.type = type_hints[field.name]
self._parse_dataclass_field(parser, field)
def parse_args_into_dataclasses(
self,
args=None,
return_remaining_strings=False,
look_for_args_file=True,
args_filename=None,
args_file_flag=None,
) -> Tuple[DataClass, ...]:
"""
Parse command-line args into instances of the specified dataclass types.
This relies on argparse's `ArgumentParser.parse_known_args`. See the doc at:
docs.python.org/3.7/library/argparse.html#argparse.ArgumentParser.parse_args
Args:
args:
List of strings to parse. The default is taken from sys.argv. (same as argparse.ArgumentParser)
return_remaining_strings:
If true, also return a list of remaining argument strings.
look_for_args_file:
If true, will look for a ".args" file with the same base name as the entry point script for this
process, and will append its potential content to the command line args.
args_filename:
If not None, will uses this file instead of the ".args" file specified in the previous argument.
args_file_flag:
If not None, will look for a file in the command-line args specified with this flag. The flag can be
specified multiple times and precedence is determined by the order (last one wins).
Returns:
Tuple consisting of:
- the dataclass instances in the same order as they were passed to the initializer.abspath
- if applicable, an additional namespace for more (non-dataclass backed) arguments added to the parser
after initialization.
- The potential list of remaining argument strings. (same as argparse.ArgumentParser.parse_known_args)
"""
if args_file_flag or args_filename or (look_for_args_file and len(sys.argv)):
args_files = []
if args_filename:
args_files.append(Path(args_filename))
elif look_for_args_file and len(sys.argv):
args_files.append(Path(sys.argv[0]).with_suffix(".args"))
# args files specified via command line flag should overwrite default args files so we add them last
if args_file_flag:
# Create special parser just to extract the args_file_flag values
args_file_parser = ArgumentParser()
args_file_parser.add_argument(args_file_flag, type=str, action="append")
# Use only remaining args for further parsing (remove the args_file_flag)
cfg, args = args_file_parser.parse_known_args(args=args)
cmd_args_file_paths = vars(cfg).get(args_file_flag.lstrip("-"), None)
if cmd_args_file_paths:
args_files.extend([Path(p) for p in cmd_args_file_paths])
file_args = []
for args_file in args_files:
if args_file.exists():
file_args += args_file.read_text().split()
# in case of duplicate arguments the last one has precedence
# args specified via the command line should overwrite args from files, so we add them last
args = file_args + args if args is not None else file_args + sys.argv[1:]
namespace, remaining_args = self.parse_known_args(args=args)
outputs = []
for dtype in self.dataclass_types:
keys = {f.name for f in dataclasses.fields(dtype) if f.init}
inputs = {k: v for k, v in vars(namespace).items() if k in keys}
for k in keys:
delattr(namespace, k)
obj = dtype(**inputs)
outputs.append(obj)
if len(namespace.__dict__) > 0:
# additional namespace.
outputs.append(namespace)
if return_remaining_strings:
return (*outputs, remaining_args)
else:
if remaining_args:
raise ValueError(f"Some specified arguments are not used by the HfArgumentParser: {remaining_args}")
return (*outputs,)
def parse_dict(self, args: Dict[str, Any], allow_extra_keys: bool = False) -> Tuple[DataClass, ...]:
"""
Alternative helper method that does not use `argparse` at all, instead uses a dict and populating the dataclass
types.
Args:
args (`dict`):
dict containing config values
allow_extra_keys (`bool`, *optional*, defaults to `False`):
Defaults to False. If False, will raise an exception if the dict contains keys that are not parsed.
Returns:
Tuple consisting of:
- the dataclass instances in the same order as they were passed to the initializer.
"""
unused_keys = set(args.keys())
outputs = []
for dtype in self.dataclass_types:
keys = {f.name for f in dataclasses.fields(dtype) if f.init}
inputs = {k: v for k, v in args.items() if k in keys}
unused_keys.difference_update(inputs.keys())
obj = dtype(**inputs)
outputs.append(obj)
if not allow_extra_keys and unused_keys:
raise ValueError(f"Some keys are not used by the HfArgumentParser: {sorted(unused_keys)}")
return tuple(outputs)
def parse_json_file(
self, json_file: Union[str, os.PathLike], allow_extra_keys: bool = False
) -> Tuple[DataClass, ...]:
"""
Alternative helper method that does not use `argparse` at all, instead loading a json file and populating the
dataclass types.
Args:
json_file (`str` or `os.PathLike`):
File name of the json file to parse
allow_extra_keys (`bool`, *optional*, defaults to `False`):
Defaults to False. If False, will raise an exception if the json file contains keys that are not
parsed.
Returns:
Tuple consisting of:
- the dataclass instances in the same order as they were passed to the initializer.
"""
with open(Path(json_file), encoding="utf-8") as open_json_file:
data = json.loads(open_json_file.read())
outputs = self.parse_dict(data, allow_extra_keys=allow_extra_keys)
return tuple(outputs)
def parse_yaml_file(
self, yaml_file: Union[str, os.PathLike], allow_extra_keys: bool = False
) -> Tuple[DataClass, ...]:
"""
Alternative helper method that does not use `argparse` at all, instead loading a yaml file and populating the
dataclass types.
Args:
yaml_file (`str` or `os.PathLike`):
File name of the yaml file to parse
allow_extra_keys (`bool`, *optional*, defaults to `False`):
Defaults to False. If False, will raise an exception if the json file contains keys that are not
parsed.
Returns:
Tuple consisting of:
- the dataclass instances in the same order as they were passed to the initializer.
"""
outputs = self.parse_dict(yaml.safe_load(Path(yaml_file).read_text()), allow_extra_keys=allow_extra_keys)
return tuple(outputs)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_flax_outputs.py | # Copyright 2021 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Dict, Optional, Tuple
import flax
import jax.numpy as jnp
from .utils import ModelOutput
@flax.struct.dataclass
class FlaxBaseModelOutput(ModelOutput):
"""
Base class for model's outputs, with potential hidden states and attentions.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithNoAttention(ModelOutput):
"""
Base class for model's outputs, with potential hidden states.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)`):
Sequence of hidden-states at the output of the last layer of the model.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings, if the model has an embedding layer, + one
for the output of each layer) of shape `(batch_size, num_channels, height, width)`. Hidden-states of the
model at the output of each layer plus the optional initial embedding outputs.
"""
last_hidden_state: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithPoolingAndNoAttention(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`jnp.ndarray` of shape `(batch_size, hidden_size)`):
Last layer hidden-state after a pooling operation on the spatial dimensions.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings, if the model has an embedding layer, + one
for the output of each layer) of shape `(batch_size, num_channels, height, width)`. Hidden-states of the
model at the output of each layer plus the optional initial embedding outputs.
"""
last_hidden_state: jnp.ndarray = None
pooler_output: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxImageClassifierOutputWithNoAttention(ModelOutput):
"""
Base class for outputs of image classification models.
Args:
logits (`jnp.ndarray` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when
`config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings, if the model has an embedding layer, + one
for the output of each stage) of shape `(batch_size, num_channels, height, width)`. Hidden-states (also
called feature maps) of the model at the output of each stage.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithPast(ModelOutput):
"""
Base class for model's outputs, with potential hidden states and attentions.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
past_key_values (`Dict[str, jnp.ndarray]`):
Dictionary of pre-computed hidden-states (key and values in the attention blocks) that can be used for fast
auto-regressive decoding. Pre-computed key and value hidden-states are of shape *[batch_size, max_length]*.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: jnp.ndarray = None
past_key_values: Optional[Dict[str, jnp.ndarray]] = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithPooling(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`jnp.ndarray` of shape `(batch_size, hidden_size)`):
Last layer hidden-state of the first token of the sequence (classification token) further processed by a
Linear layer and a Tanh activation function. The Linear layer weights are trained from the next sentence
prediction (classification) objective during pretraining.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
last_hidden_state: jnp.ndarray = None
pooler_output: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithPoolingAndCrossAttentions(ModelOutput):
"""
Base class for model's outputs that also contains a pooling of the last hidden states.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
pooler_output (`jnp.ndarray` of shape `(batch_size, hidden_size)`):
Last layer hidden-state of the first token of the sequence (classification token) after further processing
through the layers used for the auxiliary pretraining task. E.g. for BERT-family of models, this returns
the classification token after processing through a linear layer and a tanh activation function. The linear
layer weights are trained from the next sentence prediction (classification) objective during pretraining.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings, if the model has an embedding layer, + one
for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` and `config.add_cross_attention=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if
`config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads,
encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if
`config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values`
input) to speed up sequential decoding.
"""
last_hidden_state: jnp.ndarray = None
pooler_output: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxBaseModelOutputWithPastAndCrossAttentions(ModelOutput):
"""
Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the model.
If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1,
hidden_size)` is output.
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if
`config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads,
encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if
`config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values`
input) to speed up sequential decoding.
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` and `config.add_cross_attention=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
"""
last_hidden_state: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxSeq2SeqModelOutput(ModelOutput):
"""
Base class for model encoder's outputs that also contains : pre-computed hidden states that can speed up sequential
decoding.
Args:
last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`):
Sequence of hidden-states at the output of the last layer of the decoder of the model.
If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1,
hidden_size)` is output.
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
`(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
last_hidden_state: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
decoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
decoder_attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
encoder_last_hidden_state: Optional[jnp.ndarray] = None
encoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
encoder_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxCausalLMOutputWithCrossAttentions(ModelOutput):
"""
Base class for causal language model (or autoregressive) outputs.
Args:
logits (`jnp.ndarray` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Cross attentions weights after the attention softmax, used to compute the weighted average in the
cross-attention heads.
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `jnp.ndarray` tuples of length `config.n_layers`, with each tuple containing the cached key, value
states of the self-attention and the cross-attention layers if model is used in encoder-decoder setting.
Only relevant if `config.is_decoder = True`.
Contains pre-computed hidden-states (key and values in the attention blocks) that can be used (see
`past_key_values` input) to speed up sequential decoding.
"""
logits: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxMaskedLMOutput(ModelOutput):
"""
Base class for masked language models outputs.
Args:
logits (`jnp.ndarray` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
FlaxCausalLMOutput = FlaxMaskedLMOutput
@flax.struct.dataclass
class FlaxSeq2SeqLMOutput(ModelOutput):
"""
Base class for sequence-to-sequence language models outputs.
Args:
logits (`jnp.ndarray` of shape `(batch_size, sequence_length, config.vocab_size)`):
Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
`(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
logits: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
decoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
decoder_attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
encoder_last_hidden_state: Optional[jnp.ndarray] = None
encoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
encoder_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxNextSentencePredictorOutput(ModelOutput):
"""
Base class for outputs of models predicting if two sentences are consecutive or not.
Args:
logits (`jnp.ndarray` of shape `(batch_size, 2)`):
Prediction scores of the next sequence prediction (classification) head (scores of True/False continuation
before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxSequenceClassifierOutput(ModelOutput):
"""
Base class for outputs of sentence classification models.
Args:
logits (`jnp.ndarray` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxSeq2SeqSequenceClassifierOutput(ModelOutput):
"""
Base class for outputs of sequence-to-sequence sentence classification models.
Args:
logits (`jnp.ndarray` of shape `(batch_size, config.num_labels)`):
Classification (or regression if config.num_labels==1) scores (before SoftMax).
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
`(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
logits: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
decoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
decoder_attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
encoder_last_hidden_state: Optional[jnp.ndarray] = None
encoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
encoder_attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxMultipleChoiceModelOutput(ModelOutput):
"""
Base class for outputs of multiple choice models.
Args:
logits (`jnp.ndarray` of shape `(batch_size, num_choices)`):
*num_choices* is the second dimension of the input tensors. (see *input_ids* above).
Classification scores (before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxTokenClassifierOutput(ModelOutput):
"""
Base class for outputs of token classification models.
Args:
logits (`jnp.ndarray` of shape `(batch_size, sequence_length, config.num_labels)`):
Classification scores (before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxQuestionAnsweringModelOutput(ModelOutput):
"""
Base class for outputs of question answering models.
Args:
start_logits (`jnp.ndarray` of shape `(batch_size, sequence_length)`):
Span-start scores (before SoftMax).
end_logits (`jnp.ndarray` of shape `(batch_size, sequence_length)`):
Span-end scores (before SoftMax).
hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the model at the output of each layer plus the initial embedding outputs.
attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
heads.
"""
start_logits: jnp.ndarray = None
end_logits: jnp.ndarray = None
hidden_states: Optional[Tuple[jnp.ndarray]] = None
attentions: Optional[Tuple[jnp.ndarray]] = None
@flax.struct.dataclass
class FlaxSeq2SeqQuestionAnsweringModelOutput(ModelOutput):
"""
Base class for outputs of sequence-to-sequence question answering models.
Args:
start_logits (`jnp.ndarray` of shape `(batch_size, sequence_length)`):
Span-start scores (before SoftMax).
end_logits (`jnp.ndarray` of shape `(batch_size, sequence_length)`):
Span-end scores (before SoftMax).
past_key_values (`tuple(tuple(jnp.ndarray))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
Tuple of `tuple(jnp.ndarray)` of length `config.n_layers`, with each tuple having 2 tensors of shape
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
`(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
decoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the decoder at the output of each layer plus the initial embedding outputs.
decoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
cross_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the decoder's cross-attention layer, after the attention softmax, used to compute the
weighted average in the cross-attention heads.
encoder_last_hidden_state (`jnp.ndarray` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
Sequence of hidden-states at the output of the last layer of the encoder of the model.
encoder_hidden_states (`tuple(jnp.ndarray)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
Tuple of `jnp.ndarray` (one for the output of the embeddings + one for the output of each layer) of shape
`(batch_size, sequence_length, hidden_size)`.
Hidden-states of the encoder at the output of each layer plus the initial embedding outputs.
encoder_attentions (`tuple(jnp.ndarray)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
Tuple of `jnp.ndarray` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
sequence_length)`.
Attentions weights of the encoder, after the attention softmax, used to compute the weighted average in the
self-attention heads.
"""
start_logits: jnp.ndarray = None
end_logits: jnp.ndarray = None
past_key_values: Optional[Tuple[Tuple[jnp.ndarray]]] = None
decoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
decoder_attentions: Optional[Tuple[jnp.ndarray]] = None
cross_attentions: Optional[Tuple[jnp.ndarray]] = None
encoder_last_hidden_state: Optional[jnp.ndarray] = None
encoder_hidden_states: Optional[Tuple[jnp.ndarray]] = None
encoder_attentions: Optional[Tuple[jnp.ndarray]] = None
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/trainer_pt_utils.py | # coding=utf-8
# Copyright 2020-present the HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Torch utilities for the Trainer class.
"""
import copy
import datetime
import io
import json
import math
import os
import sys
import warnings
from collections.abc import Mapping
from contextlib import contextmanager
from dataclasses import dataclass, field
from logging import StreamHandler
from typing import Any, Dict, Iterator, List, Optional, Union
import numpy as np
import torch
import torch.distributed as dist
from torch import nn
from torch.utils.data import Dataset, IterableDataset, RandomSampler, Sampler
from torch.utils.data.distributed import DistributedSampler
from .integrations.deepspeed import is_deepspeed_zero3_enabled
from .tokenization_utils_base import BatchEncoding
from .utils import (
is_sagemaker_mp_enabled,
is_torch_available,
is_torch_xla_available,
is_training_run_on_sagemaker,
logging,
)
if is_training_run_on_sagemaker():
logging.add_handler(StreamHandler(sys.stdout))
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
if is_torch_available():
from .pytorch_utils import is_torch_greater_or_equal_than_2_0
if is_torch_greater_or_equal_than_2_0:
from torch.optim.lr_scheduler import LRScheduler
else:
from torch.optim.lr_scheduler import _LRScheduler as LRScheduler
# this is used to suppress an undesired warning emitted by pytorch versions 1.4.2-1.7.0
try:
from torch.optim.lr_scheduler import SAVE_STATE_WARNING
except ImportError:
SAVE_STATE_WARNING = ""
logger = logging.get_logger(__name__)
def get_dataloader_sampler(dataloader):
if hasattr(dataloader, "batch_sampler") and dataloader.batch_sampler is not None:
return get_dataloader_sampler(dataloader.batch_sampler)
elif hasattr(dataloader, "sampler"):
return dataloader.sampler
def atleast_1d(tensor_or_array: Union[torch.Tensor, np.ndarray]):
if isinstance(tensor_or_array, torch.Tensor):
if hasattr(torch, "atleast_1d"):
tensor_or_array = torch.atleast_1d(tensor_or_array)
elif tensor_or_array.ndim < 1:
tensor_or_array = tensor_or_array[None]
else:
tensor_or_array = np.atleast_1d(tensor_or_array)
return tensor_or_array
def torch_pad_and_concatenate(tensor1, tensor2, padding_index=-100):
"""Concatenates `tensor1` and `tensor2` on first axis, applying padding on the second if necessary."""
tensor1 = atleast_1d(tensor1)
tensor2 = atleast_1d(tensor2)
if len(tensor1.shape) == 1 or tensor1.shape[1] == tensor2.shape[1]:
return torch.cat((tensor1, tensor2), dim=0)
# Let's figure out the new shape
new_shape = (tensor1.shape[0] + tensor2.shape[0], max(tensor1.shape[1], tensor2.shape[1])) + tensor1.shape[2:]
# Now let's fill the result tensor
result = tensor1.new_full(new_shape, padding_index)
result[: tensor1.shape[0], : tensor1.shape[1]] = tensor1
result[tensor1.shape[0] :, : tensor2.shape[1]] = tensor2
return result
def numpy_pad_and_concatenate(array1, array2, padding_index=-100):
"""Concatenates `array1` and `array2` on first axis, applying padding on the second if necessary."""
array1 = atleast_1d(array1)
array2 = atleast_1d(array2)
if len(array1.shape) == 1 or array1.shape[1] == array2.shape[1]:
return np.concatenate((array1, array2), axis=0)
# Let's figure out the new shape
new_shape = (array1.shape[0] + array2.shape[0], max(array1.shape[1], array2.shape[1])) + array1.shape[2:]
# Now let's fill the result tensor
result = np.full_like(array1, padding_index, shape=new_shape)
result[: array1.shape[0], : array1.shape[1]] = array1
result[array1.shape[0] :, : array2.shape[1]] = array2
return result
def nested_concat(tensors, new_tensors, padding_index=-100):
"""
Concat the `new_tensors` to `tensors` on the first dim and pad them on the second if needed. Works for tensors or
nested list/tuples/dict of tensors.
"""
assert type(tensors) == type(
new_tensors
), f"Expected `tensors` and `new_tensors` to have the same type but found {type(tensors)} and {type(new_tensors)}."
if isinstance(tensors, (list, tuple)):
return type(tensors)(nested_concat(t, n, padding_index=padding_index) for t, n in zip(tensors, new_tensors))
elif isinstance(tensors, torch.Tensor):
return torch_pad_and_concatenate(tensors, new_tensors, padding_index=padding_index)
elif isinstance(tensors, Mapping):
return type(tensors)(
{k: nested_concat(t, new_tensors[k], padding_index=padding_index) for k, t in tensors.items()}
)
elif isinstance(tensors, np.ndarray):
return numpy_pad_and_concatenate(tensors, new_tensors, padding_index=padding_index)
else:
raise TypeError(f"Unsupported type for concatenation: got {type(tensors)}")
def find_batch_size(tensors):
"""
Find the first dimension of a tensor in a nested list/tuple/dict of tensors.
"""
if isinstance(tensors, (list, tuple)):
for t in tensors:
result = find_batch_size(t)
if result is not None:
return result
elif isinstance(tensors, Mapping):
for key, value in tensors.items():
result = find_batch_size(value)
if result is not None:
return result
elif isinstance(tensors, torch.Tensor):
return tensors.shape[0] if len(tensors.shape) >= 1 else None
elif isinstance(tensors, np.ndarray):
return tensors.shape[0] if len(tensors.shape) >= 1 else None
def nested_numpify(tensors):
"Numpify `tensors` (even if it's a nested list/tuple/dict of tensors)."
if isinstance(tensors, (list, tuple)):
return type(tensors)(nested_numpify(t) for t in tensors)
if isinstance(tensors, Mapping):
return type(tensors)({k: nested_numpify(t) for k, t in tensors.items()})
t = tensors.cpu()
if t.dtype == torch.bfloat16:
# As of Numpy 1.21.4, NumPy does not support bfloat16 (see
# https://github.com/numpy/numpy/blob/a47ecdea856986cd60eabbd53265c2ca5916ad5d/doc/source/user/basics.types.rst ).
# Until Numpy adds bfloat16, we must convert float32.
t = t.to(torch.float32)
return t.numpy()
def nested_detach(tensors):
"Detach `tensors` (even if it's a nested list/tuple/dict of tensors)."
if isinstance(tensors, (list, tuple)):
return type(tensors)(nested_detach(t) for t in tensors)
elif isinstance(tensors, Mapping):
return type(tensors)({k: nested_detach(t) for k, t in tensors.items()})
return tensors.detach()
def nested_xla_mesh_reduce(tensors, name):
if is_torch_xla_available():
import torch_xla.core.xla_model as xm
if isinstance(tensors, (list, tuple)):
return type(tensors)(nested_xla_mesh_reduce(t, f"{name}_{i}") for i, t in enumerate(tensors))
if isinstance(tensors, Mapping):
return type(tensors)(
{k: nested_xla_mesh_reduce(t, f"{name}_{i}") for i, (k, t) in enumerate(tensors.items())}
)
tensors = atleast_1d(tensors)
return xm.mesh_reduce(name, tensors, torch.cat)
else:
raise ImportError("Torch xla must be installed to use `nested_xla_mesh_reduce`")
def distributed_concat(tensor: Any, num_total_examples: Optional[int] = None) -> Any:
try:
if isinstance(tensor, (tuple, list)):
return type(tensor)(distributed_concat(t, num_total_examples) for t in tensor)
if isinstance(tensor, Mapping):
return type(tensor)({k: distributed_concat(t, num_total_examples) for k, t in tensor.items()})
tensor = atleast_1d(tensor).contiguous()
output_tensors = [tensor.clone() for _ in range(dist.get_world_size())]
dist.all_gather(output_tensors, tensor)
concat = torch.cat(output_tensors, dim=0)
# truncate the dummy elements added by SequentialDistributedSampler
if num_total_examples is not None:
concat = concat[:num_total_examples]
return concat
except AssertionError:
raise AssertionError("Not currently using distributed training")
def distributed_broadcast_scalars(
scalars: List[Union[int, float]],
num_total_examples: Optional[int] = None,
device: Optional[torch.device] = torch.device("cuda"),
) -> torch.Tensor:
try:
tensorized_scalar = torch.tensor(scalars).to(device)
output_tensors = [tensorized_scalar.clone() for _ in range(dist.get_world_size())]
dist.all_gather(output_tensors, tensorized_scalar)
concat = torch.cat(output_tensors, dim=0)
# truncate the dummy elements added by SequentialDistributedSampler
if num_total_examples is not None:
concat = concat[:num_total_examples]
return concat
except AssertionError:
raise AssertionError("Not currently using distributed training")
def reissue_pt_warnings(caught_warnings):
# Reissue warnings that are not the SAVE_STATE_WARNING
if len(caught_warnings) > 1:
for w in caught_warnings:
if w.category != UserWarning or w.message != SAVE_STATE_WARNING:
warnings.warn(w.message, w.category)
@contextmanager
def torch_distributed_zero_first(local_rank: int):
"""
Decorator to make all processes in distributed training wait for each local_master to do something.
Args:
local_rank (`int`): The rank of the local process.
"""
if local_rank not in [-1, 0]:
dist.barrier()
yield
if local_rank == 0:
dist.barrier()
class DistributedSamplerWithLoop(DistributedSampler):
"""
Like a torch.utils.data.distributed.DistributedSampler` but loops at the end back to the beginning of the shuffled
samples to make each process have a round multiple of batch_size samples.
Args:
dataset (`torch.utils.data.Dataset`):
Dataset used for sampling.
batch_size (`int`):
The batch size used with this sampler
kwargs (`Dict[str, Any]`, *optional*):
All other keyword arguments passed to `DistributedSampler`.
"""
def __init__(self, dataset, batch_size, **kwargs):
super().__init__(dataset, **kwargs)
self.batch_size = batch_size
def __iter__(self):
indices = list(super().__iter__())
remainder = 0 if len(indices) % self.batch_size == 0 else self.batch_size - len(indices) % self.batch_size
# DistributedSampler already added samples from the beginning to make the number of samples a round multiple
# of the world size, so we skip those.
start_remainder = 1 if self.rank < len(self.dataset) % self.num_replicas else 0
indices += indices[start_remainder : start_remainder + remainder]
return iter(indices)
class EvalLoopContainer:
"""
Container to store intermediate results of evaluation loop
Args:
do_nested_concat (`bool`, *optional*, defaults to `True`):
If set to `True`, each iteration will recursively concatenate a new object containing tensors to
the existing stored tensors, provided that the structure of the existing object and the new one
are identical. If set to `False`, all newly added tensors will be stored in a list.
padding_index (`int`, *optional*, defaults to -100):
Value used to pad tensors of different shapes when `do_nested_concat=True`.
"""
def __init__(self, do_nested_concat: bool = True, padding_index: int = -100):
self.do_nested_concat = do_nested_concat
self.padding_index = padding_index
self.tensors = None
self.arrays = None
def add(self, tensors) -> None:
"""Add tensors to the stored objects. If `do_nested_concat=True`, the tensors will be concatenated recursively."""
if self.tensors is None:
self.tensors = tensors if self.do_nested_concat else [tensors]
elif self.do_nested_concat:
self.tensors = nested_concat(self.tensors, tensors, padding_index=self.padding_index)
else:
self.tensors.append(tensors)
def to_cpu_and_numpy(self) -> None:
"""Move tensors in stored objects to CPU and convert them to numpy arrays."""
# Check if we have something to add, if not just return
if self.tensors is None:
return
new_arrays = nested_numpify(self.tensors)
if self.arrays is None:
self.arrays = new_arrays
elif self.do_nested_concat:
self.arrays = nested_concat(self.arrays, new_arrays, padding_index=self.padding_index)
else:
self.arrays.extend(new_arrays)
# reset device tensors after adding to cpu
self.tensors = None
def get_arrays(self):
"""Returns the numpified and moved to CPU stored objects."""
self.to_cpu_and_numpy()
return self.arrays
class SequentialDistributedSampler(Sampler):
"""
Distributed Sampler that subsamples indices sequentially, making it easier to collate all results at the end.
Even though we only use this sampler for eval and predict (no training), which means that the model params won't
have to be synced (i.e. will not hang for synchronization even if varied number of forward passes), we still add
extra samples to the sampler to make it evenly divisible (like in `DistributedSampler`) to make it easy to `gather`
or `reduce` resulting tensors at the end of the loop.
"""
def __init__(self, dataset, num_replicas=None, rank=None, batch_size=None):
warnings.warn(
"SequentialDistributedSampler is deprecated and will be removed in v5 of Transformers.",
FutureWarning,
)
if num_replicas is None:
if not dist.is_available():
raise RuntimeError("Requires distributed package to be available")
num_replicas = dist.get_world_size()
if rank is None:
if not dist.is_available():
raise RuntimeError("Requires distributed package to be available")
rank = dist.get_rank()
self.dataset = dataset
self.num_replicas = num_replicas
self.rank = rank
num_samples = len(self.dataset)
# Add extra samples to make num_samples a multiple of batch_size if passed
if batch_size is not None:
self.num_samples = int(math.ceil(num_samples / (batch_size * num_replicas))) * batch_size
else:
self.num_samples = int(math.ceil(num_samples / num_replicas))
self.total_size = self.num_samples * self.num_replicas
self.batch_size = batch_size
def __iter__(self):
indices = list(range(len(self.dataset)))
# add extra samples to make it evenly divisible
indices += indices[: (self.total_size - len(indices))]
assert (
len(indices) == self.total_size
), f"Indices length {len(indices)} and total size {self.total_size} mismatched"
# subsample
indices = indices[self.rank * self.num_samples : (self.rank + 1) * self.num_samples]
assert (
len(indices) == self.num_samples
), f"Indices length {len(indices)} and sample number {self.num_samples} mismatched"
return iter(indices)
def __len__(self):
return self.num_samples
def get_tpu_sampler(dataset: torch.utils.data.Dataset, batch_size: int):
if xm.xrt_world_size() <= 1:
return RandomSampler(dataset)
return DistributedSampler(dataset, num_replicas=xm.xrt_world_size(), rank=xm.get_ordinal())
def nested_new_like(arrays, num_samples, padding_index=-100):
"""Create the same nested structure as `arrays` with a first dimension always at `num_samples`."""
if isinstance(arrays, (list, tuple)):
return type(arrays)(nested_new_like(x, num_samples) for x in arrays)
return np.full_like(arrays, padding_index, shape=(num_samples, *arrays.shape[1:]))
def expand_like(arrays, new_seq_length, padding_index=-100):
"""Expand the `arrays` so that the second dimension grows to `new_seq_length`. Uses `padding_index` for padding."""
result = np.full_like(arrays, padding_index, shape=(arrays.shape[0], new_seq_length) + arrays.shape[2:])
result[:, : arrays.shape[1]] = arrays
return result
def nested_truncate(tensors, limit):
"Truncate `tensors` at `limit` (even if it's a nested list/tuple/dict of tensors)."
if isinstance(tensors, (list, tuple)):
return type(tensors)(nested_truncate(t, limit) for t in tensors)
if isinstance(tensors, Mapping):
return type(tensors)({k: nested_truncate(t, limit) for k, t in tensors.items()})
return tensors[:limit]
class DistributedTensorGatherer:
"""
A class responsible for properly gathering tensors (or nested list/tuple of tensors) on the CPU by chunks.
If our dataset has 16 samples with a batch size of 2 on 3 processes and we gather then transfer on CPU at every
step, our sampler will generate the following indices:
`[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0, 1]`
to get something of size a multiple of 3 (so that each process gets the same dataset length). Then process 0, 1 and
2 will be responsible of making predictions for the following samples:
- P0: `[0, 1, 2, 3, 4, 5]`
- P1: `[6, 7, 8, 9, 10, 11]`
- P2: `[12, 13, 14, 15, 0, 1]`
The first batch treated on each process will be
- P0: `[0, 1]`
- P1: `[6, 7]`
- P2: `[12, 13]`
So if we gather at the end of the first batch, we will get a tensor (nested list/tuple of tensor) corresponding to
the following indices:
`[0, 1, 6, 7, 12, 13]`
If we directly concatenate our results without taking any precautions, the user will then get the predictions for
the indices in this order at the end of the prediction loop:
`[0, 1, 6, 7, 12, 13, 2, 3, 8, 9, 14, 15, 4, 5, 10, 11, 0, 1]`
For some reason, that's not going to roll their boat. This class is there to solve that problem.
Args:
world_size (`int`):
The number of processes used in the distributed training.
num_samples (`int`):
The number of samples in our dataset.
make_multiple_of (`int`, *optional*):
If passed, the class assumes the datasets passed to each process are made to be a multiple of this argument
(by adding samples).
padding_index (`int`, *optional*, defaults to -100):
The padding index to use if the arrays don't all have the same sequence length.
"""
def __init__(self, world_size, num_samples, make_multiple_of=None, padding_index=-100):
warnings.warn(
"DistributedTensorGatherer is deprecated and will be removed in v5 of Transformers.",
FutureWarning,
)
self.world_size = world_size
self.num_samples = num_samples
total_size = world_size if make_multiple_of is None else world_size * make_multiple_of
self.total_samples = int(np.ceil(num_samples / total_size)) * total_size
self.process_length = self.total_samples // world_size
self._storage = None
self._offsets = None
self.padding_index = padding_index
def add_arrays(self, arrays):
"""
Add `arrays` to the internal storage, Will initialize the storage to the full size at the first arrays passed
so that if we're bound to get an OOM, it happens at the beginning.
"""
if arrays is None:
return
if self._storage is None:
self._storage = nested_new_like(arrays, self.total_samples, padding_index=self.padding_index)
self._offsets = list(range(0, self.total_samples, self.process_length))
slice_len, self._storage = self._nested_set_tensors(self._storage, arrays)
for i in range(self.world_size):
self._offsets[i] += slice_len
def _nested_set_tensors(self, storage, arrays):
if isinstance(arrays, (list, tuple)):
result = [self._nested_set_tensors(x, y) for x, y in zip(storage, arrays)]
return result[0][0], type(arrays)(r[1] for r in result)
assert (
arrays.shape[0] % self.world_size == 0
), f"Arrays passed should all have a first dimension multiple of {self.world_size}, found {arrays.shape[0]}."
slice_len = arrays.shape[0] // self.world_size
for i in range(self.world_size):
if len(arrays.shape) == 1:
storage[self._offsets[i] : self._offsets[i] + slice_len] = arrays[i * slice_len : (i + 1) * slice_len]
else:
# Expand the array on the fly if needed.
if len(storage.shape) > 1 and storage.shape[1] < arrays.shape[1]:
storage = expand_like(storage, arrays.shape[1], padding_index=self.padding_index)
storage[self._offsets[i] : self._offsets[i] + slice_len, : arrays.shape[1]] = arrays[
i * slice_len : (i + 1) * slice_len
]
return slice_len, storage
def finalize(self):
"""
Return the properly gathered arrays and truncate to the number of samples (since the sampler added some extras
to get each process a dataset of the same length).
"""
if self._storage is None:
return
if self._offsets[0] != self.process_length:
logger.warning("Not all data has been set. Are you sure you passed all values?")
return nested_truncate(self._storage, self.num_samples)
@dataclass
class LabelSmoother:
"""
Adds label-smoothing on a pre-computed output from a Transformers model.
Args:
epsilon (`float`, *optional*, defaults to 0.1):
The label smoothing factor.
ignore_index (`int`, *optional*, defaults to -100):
The index in the labels to ignore when computing the loss.
"""
epsilon: float = 0.1
ignore_index: int = -100
def __call__(self, model_output, labels, shift_labels=False):
logits = model_output["logits"] if isinstance(model_output, dict) else model_output[0]
if shift_labels:
logits = logits[..., :-1, :].contiguous()
labels = labels[..., 1:].contiguous()
log_probs = -nn.functional.log_softmax(logits, dim=-1)
if labels.dim() == log_probs.dim() - 1:
labels = labels.unsqueeze(-1)
padding_mask = labels.eq(self.ignore_index)
# In case the ignore_index is -100, the gather will fail, so we replace labels by 0. The padding_mask
# will ignore them in any case.
labels = torch.clamp(labels, min=0)
nll_loss = log_probs.gather(dim=-1, index=labels)
# works for fp16 input tensor too, by internally upcasting it to fp32
smoothed_loss = log_probs.sum(dim=-1, keepdim=True, dtype=torch.float32)
nll_loss.masked_fill_(padding_mask, 0.0)
smoothed_loss.masked_fill_(padding_mask, 0.0)
# Take the mean over the label dimensions, then divide by the number of active elements (i.e. not-padded):
num_active_elements = padding_mask.numel() - padding_mask.long().sum()
nll_loss = nll_loss.sum() / num_active_elements
smoothed_loss = smoothed_loss.sum() / (num_active_elements * log_probs.shape[-1])
return (1 - self.epsilon) * nll_loss + self.epsilon * smoothed_loss
def get_length_grouped_indices(lengths, batch_size, mega_batch_mult=None, generator=None):
"""
Return a list of indices so that each slice of `batch_size` consecutive indices correspond to elements of similar
lengths. To do this, the indices are:
- randomly permuted
- grouped in mega-batches of size `mega_batch_mult * batch_size`
- sorted by length in each mega-batch
The result is the concatenation of all mega-batches, with the batch of `batch_size` containing the element of
maximum length placed first, so that an OOM happens sooner rather than later.
"""
# Default for mega_batch_mult: 50 or the number to get 4 megabatches, whichever is smaller.
if mega_batch_mult is None:
mega_batch_mult = min(len(lengths) // (batch_size * 4), 50)
# Just in case, for tiny datasets
if mega_batch_mult == 0:
mega_batch_mult = 1
# We need to use torch for the random part as a distributed sampler will set the random seed for torch.
indices = torch.randperm(len(lengths), generator=generator)
megabatch_size = mega_batch_mult * batch_size
megabatches = [indices[i : i + megabatch_size].tolist() for i in range(0, len(lengths), megabatch_size)]
megabatches = [sorted(megabatch, key=lambda i: lengths[i], reverse=True) for megabatch in megabatches]
# The rest is to get the biggest batch first.
# Since each megabatch is sorted by descending length, the longest element is the first
megabatch_maximums = [lengths[megabatch[0]] for megabatch in megabatches]
max_idx = torch.argmax(torch.tensor(megabatch_maximums)).item()
# Switch to put the longest element in first position
megabatches[0][0], megabatches[max_idx][0] = megabatches[max_idx][0], megabatches[0][0]
return [i for megabatch in megabatches for i in megabatch]
class LengthGroupedSampler(Sampler):
r"""
Sampler that samples indices in a way that groups together features of the dataset of roughly the same length while
keeping a bit of randomness.
"""
def __init__(
self,
batch_size: int,
dataset: Optional[Dataset] = None,
lengths: Optional[List[int]] = None,
model_input_name: Optional[str] = None,
generator=None,
):
if dataset is None and lengths is None:
raise ValueError("One of dataset and lengths must be provided.")
self.batch_size = batch_size
if lengths is None:
model_input_name = model_input_name if model_input_name is not None else "input_ids"
if (
not (isinstance(dataset[0], dict) or isinstance(dataset[0], BatchEncoding))
or model_input_name not in dataset[0]
):
raise ValueError(
"Can only automatically infer lengths for datasets whose items are dictionaries with an "
f"'{model_input_name}' key."
)
lengths = [len(feature[model_input_name]) for feature in dataset]
elif isinstance(lengths, torch.Tensor):
logger.info(
"If lengths is a torch.Tensor, LengthGroupedSampler will be slow. Converting lengths to List[int]..."
)
lengths = lengths.tolist()
self.lengths = lengths
self.generator = generator
def __len__(self):
return len(self.lengths)
def __iter__(self):
indices = get_length_grouped_indices(self.lengths, self.batch_size, generator=self.generator)
return iter(indices)
class DistributedLengthGroupedSampler(DistributedSampler):
r"""
Distributed Sampler that samples indices in a way that groups together features of the dataset of roughly the same
length while keeping a bit of randomness.
"""
# Copied and adapted from PyTorch DistributedSampler.
def __init__(
self,
batch_size: int,
dataset: Optional[Dataset] = None,
num_replicas: Optional[int] = None,
rank: Optional[int] = None,
seed: int = 0,
drop_last: bool = False,
lengths: Optional[List[int]] = None,
model_input_name: Optional[str] = None,
):
if dataset is None and lengths is None:
raise ValueError("One of dataset and lengths must be provided.")
if num_replicas is None:
if not dist.is_available():
raise RuntimeError("Requires distributed package to be available")
num_replicas = dist.get_world_size()
if rank is None:
if not dist.is_available():
raise RuntimeError("Requires distributed package to be available")
rank = dist.get_rank()
self.batch_size = batch_size
self.num_replicas = num_replicas
self.rank = rank
self.epoch = 0
self.drop_last = drop_last
if lengths is None:
model_input_name = model_input_name if model_input_name is not None else "input_ids"
if (
not (isinstance(dataset[0], dict) or isinstance(dataset[0], BatchEncoding))
or model_input_name not in dataset[0]
):
raise ValueError(
"Can only automatically infer lengths for datasets whose items are dictionaries with an "
f"'{model_input_name}' key."
)
lengths = [len(feature[model_input_name]) for feature in dataset]
elif isinstance(lengths, torch.Tensor):
logger.info(
"If lengths is a torch.Tensor, DistributedLengthGroupedSampler will be slow. Converting lengths to"
" List[int]..."
)
lengths = lengths.tolist()
self.lengths = lengths
# If the dataset length is evenly divisible by # of replicas, then there
# is no need to drop any data, since the dataset will be split equally.
if self.drop_last and len(self.lengths) % self.num_replicas != 0:
# Split to nearest available length that is evenly divisible.
# This is to ensure each rank receives the same amount of data when
# using this Sampler.
self.num_samples = math.ceil((len(self.lengths) - self.num_replicas) / self.num_replicas)
else:
self.num_samples = math.ceil(len(self.lengths) / self.num_replicas)
self.total_size = self.num_samples * self.num_replicas
self.seed = seed
def __iter__(self) -> Iterator:
# Deterministically shuffle based on epoch and seed
g = torch.Generator()
g.manual_seed(self.seed + self.epoch)
indices = get_length_grouped_indices(self.lengths, self.batch_size, generator=g)
if not self.drop_last:
# add extra samples to make it evenly divisible
indices += indices[: (self.total_size - len(indices))]
else:
# remove tail of data to make it evenly divisible.
indices = indices[: self.total_size]
assert len(indices) == self.total_size
# subsample
indices = indices[self.rank : self.total_size : self.num_replicas]
assert len(indices) == self.num_samples
return iter(indices)
class ShardSampler(Sampler):
"""
Sampler that shards batches between several processes. Dispatches indices batch by batch: on 2 processes with batch
size 4, the first two batches are `[0, 1, 2, 3, 4, 5, 6, 7]` and `[8, 9, 10, 11, 12, 13, 14, 15]`, which shard into
`[0, 1, 2, 3]` and `[8, 9, 10, 11]` for GPU-0 and `[4, 5, 6, 7]` and `[12, 13, 14, 15]` for GPU-1.
The sampler thus yields `[0, 1, 2, 3, 8, 9, 10, 11]` on GPU-0 and `[4, 5, 6, 7, 12, 13, 14, 15]` on GPU-1.
"""
def __init__(
self,
dataset: Dataset,
batch_size: int = 1,
drop_last: bool = False,
num_processes: int = 1,
process_index: int = 0,
):
self.dataset = dataset
self.batch_size = batch_size
self.drop_last = drop_last
self.num_processes = num_processes
self.process_index = process_index
self.total_batch_size = total_batch_size = batch_size * num_processes
num_batches = len(dataset) // total_batch_size if drop_last else math.ceil(len(dataset) / total_batch_size)
self.total_num_samples = num_batches * total_batch_size
def __iter__(self):
indices = list(range(len(self.dataset)))
# Add extra samples to make it evenly divisible. While loop is there in the edge case we have a tiny dataset
# and it needs to be done several times.
while len(indices) < self.total_num_samples:
indices += indices[: (self.total_num_samples - len(indices))]
result = []
for batch_start in range(self.batch_size * self.process_index, self.total_num_samples, self.total_batch_size):
result += indices[batch_start : batch_start + self.batch_size]
return iter(result)
def __len__(self):
# Each shard only sees a fraction of total_num_samples.
return self.total_num_samples // self.num_processes
class IterableDatasetShard(IterableDataset):
"""
Wraps a PyTorch `IterableDataset` to generate samples for one of the processes only. Instances of this class will
always yield a number of samples that is a round multiple of the actual batch size (which is `batch_size x
num_processes`). Depending on the value of the `drop_last` attribute, it will either stop the iteration at the
first batch that would be too small or loop with indices from the beginning.
On two processes with an iterable dataset yielding of `[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]` with a batch size of
2:
- the shard on process 0 will yield `[0, 1, 4, 5, 8, 9]` so will see batches `[0, 1]`, `[4, 5]`, `[8, 9]`
- the shard on process 1 will yield `[2, 3, 6, 7, 10, 11]` so will see batches `[2, 3]`, `[6, 7]`, `[10, 11]`
<Tip warning={true}>
If your IterableDataset implements some randomization that needs to be applied the same way on all processes
(for instance, a shuffling), you should use a `torch.Generator` in a `generator` attribute of the `dataset` to
generate your random numbers and call the [`~trainer_pt_utils.IterableDatasetShard.set_epoch`] method of this
object. It will set the seed of this `generator` to `seed + epoch` on all processes before starting the
iteration. Alternatively, you can also implement a `set_epoch()` method in your iterable dataset to deal with
this.
</Tip>
Args:
dataset (`torch.utils.data.IterableDataset`):
The batch sampler to split in several shards.
batch_size (`int`, *optional*, defaults to 1):
The size of the batches per shard.
drop_last (`bool`, *optional*, defaults to `False`):
Whether or not to drop the last incomplete batch or complete the last batches by using the samples from the
beginning.
num_processes (`int`, *optional*, defaults to 1):
The number of processes running concurrently.
process_index (`int`, *optional*, defaults to 0):
The index of the current process.
seed (`int`, *optional*, defaults to 0):
A random seed that will be used for the random number generation in
[`~trainer_pt_utils.IterableDatasetShard.set_epoch`].
"""
def __init__(
self,
dataset: IterableDataset,
batch_size: int = 1,
drop_last: bool = False,
num_processes: int = 1,
process_index: int = 0,
seed: int = 0,
):
self.dataset = dataset
self.batch_size = batch_size
self.drop_last = drop_last
self.num_processes = num_processes
self.process_index = process_index
self.seed = seed
self.epoch = 0
self.num_examples = 0
def set_epoch(self, epoch):
self.epoch = epoch
if hasattr(self.dataset, "set_epoch"):
self.dataset.set_epoch(epoch)
def __iter__(self):
self.num_examples = 0
if (
not hasattr(self.dataset, "set_epoch")
and hasattr(self.dataset, "generator")
and isinstance(self.dataset.generator, torch.Generator)
):
self.dataset.generator.manual_seed(self.seed + self.epoch)
real_batch_size = self.batch_size * self.num_processes
process_slice = range(self.process_index * self.batch_size, (self.process_index + 1) * self.batch_size)
first_batch = None
current_batch = []
for element in self.dataset:
self.num_examples += 1
current_batch.append(element)
# Wait to have a full batch before yielding elements.
if len(current_batch) == real_batch_size:
for i in process_slice:
yield current_batch[i]
if first_batch is None:
first_batch = current_batch.copy()
current_batch = []
# Finished if drop_last is True, otherwise complete the last batch with elements from the beginning.
if not self.drop_last and len(current_batch) > 0:
if first_batch is None:
first_batch = current_batch.copy()
while len(current_batch) < real_batch_size:
current_batch += first_batch
for i in process_slice:
yield current_batch[i]
def __len__(self):
# Will raise an error if the underlying dataset is not sized.
if self.drop_last:
return (len(self.dataset) // (self.batch_size * self.num_processes)) * self.batch_size
else:
return math.ceil(len(self.dataset) / (self.batch_size * self.num_processes)) * self.batch_size
# In order to keep `trainer.py` compact and easy to understand, place any secondary PT Trainer
# helper methods here
def _get_learning_rate(self):
if self.is_deepspeed_enabled:
# with deepspeed's fp16 and dynamic loss scale enabled the optimizer/scheduler steps may
# not run for the first few dozen steps while loss scale is too large, and thus during
# that time `get_last_lr` will fail if called during that warm up stage, so work around it:
try:
last_lr = self.lr_scheduler.get_last_lr()[0]
except AssertionError as e:
if "need to call step" in str(e):
logger.warning("tried to get lr value before scheduler/optimizer started stepping, returning lr=0")
last_lr = 0
else:
raise
else:
if isinstance(self.lr_scheduler, torch.optim.lr_scheduler.ReduceLROnPlateau):
last_lr = self.optimizer.param_groups[0]["lr"]
else:
last_lr = self.lr_scheduler.get_last_lr()[0]
if torch.is_tensor(last_lr):
last_lr = last_lr.item()
return last_lr
def _secs2timedelta(secs):
"""
convert seconds to hh:mm:ss.msec, msecs rounded to 2 decimals
"""
msec = int(abs(secs - int(secs)) * 100)
return f"{datetime.timedelta(seconds=int(secs))}.{msec:02d}"
def metrics_format(self, metrics: Dict[str, float]) -> Dict[str, float]:
"""
Reformat Trainer metrics values to a human-readable format
Args:
metrics (`Dict[str, float]`):
The metrics returned from train/evaluate/predict
Returns:
metrics (`Dict[str, float]`): The reformatted metrics
"""
metrics_copy = metrics.copy()
for k, v in metrics_copy.items():
if "_mem_" in k:
metrics_copy[k] = f"{ v >> 20 }MB"
elif "_runtime" in k:
metrics_copy[k] = _secs2timedelta(v)
elif k == "total_flos":
metrics_copy[k] = f"{ int(v) >> 30 }GF"
elif isinstance(metrics_copy[k], float):
metrics_copy[k] = round(v, 4)
return metrics_copy
def log_metrics(self, split, metrics):
"""
Log metrics in a specially formatted way
Under distributed environment this is done only for a process with rank 0.
Args:
split (`str`):
Mode/split name: one of `train`, `eval`, `test`
metrics (`Dict[str, float]`):
The metrics returned from train/evaluate/predictmetrics: metrics dict
Notes on memory reports:
In order to get memory usage report you need to install `psutil`. You can do that with `pip install psutil`.
Now when this method is run, you will see a report that will include: :
```
init_mem_cpu_alloc_delta = 1301MB
init_mem_cpu_peaked_delta = 154MB
init_mem_gpu_alloc_delta = 230MB
init_mem_gpu_peaked_delta = 0MB
train_mem_cpu_alloc_delta = 1345MB
train_mem_cpu_peaked_delta = 0MB
train_mem_gpu_alloc_delta = 693MB
train_mem_gpu_peaked_delta = 7MB
```
**Understanding the reports:**
- the first segment, e.g., `train__`, tells you which stage the metrics are for. Reports starting with `init_`
will be added to the first stage that gets run. So that if only evaluation is run, the memory usage for the
`__init__` will be reported along with the `eval_` metrics.
- the third segment, is either `cpu` or `gpu`, tells you whether it's the general RAM or the gpu0 memory
metric.
- `*_alloc_delta` - is the difference in the used/allocated memory counter between the end and the start of the
stage - it can be negative if a function released more memory than it allocated.
- `*_peaked_delta` - is any extra memory that was consumed and then freed - relative to the current allocated
memory counter - it is never negative. When you look at the metrics of any stage you add up `alloc_delta` +
`peaked_delta` and you know how much memory was needed to complete that stage.
The reporting happens only for process of rank 0 and gpu 0 (if there is a gpu). Typically this is enough since the
main process does the bulk of work, but it could be not quite so if model parallel is used and then other GPUs may
use a different amount of gpu memory. This is also not the same under DataParallel where gpu0 may require much more
memory than the rest since it stores the gradient and optimizer states for all participating GPUS. Perhaps in the
future these reports will evolve to measure those too.
The CPU RAM metric measures RSS (Resident Set Size) includes both the memory which is unique to the process and the
memory shared with other processes. It is important to note that it does not include swapped out memory, so the
reports could be imprecise.
The CPU peak memory is measured using a sampling thread. Due to python's GIL it may miss some of the peak memory if
that thread didn't get a chance to run when the highest memory was used. Therefore this report can be less than
reality. Using `tracemalloc` would have reported the exact peak memory, but it doesn't report memory allocations
outside of python. So if some C++ CUDA extension allocated its own memory it won't be reported. And therefore it
was dropped in favor of the memory sampling approach, which reads the current process memory usage.
The GPU allocated and peak memory reporting is done with `torch.cuda.memory_allocated()` and
`torch.cuda.max_memory_allocated()`. This metric reports only "deltas" for pytorch-specific allocations, as
`torch.cuda` memory management system doesn't track any memory allocated outside of pytorch. For example, the very
first cuda call typically loads CUDA kernels, which may take from 0.5 to 2GB of GPU memory.
Note that this tracker doesn't account for memory allocations outside of [`Trainer`]'s `__init__`, `train`,
`evaluate` and `predict` calls.
Because `evaluation` calls may happen during `train`, we can't handle nested invocations because
`torch.cuda.max_memory_allocated` is a single counter, so if it gets reset by a nested eval call, `train`'s tracker
will report incorrect info. If this [pytorch issue](https://github.com/pytorch/pytorch/issues/16266) gets resolved
it will be possible to change this class to be re-entrant. Until then we will only track the outer level of
`train`, `evaluate` and `predict` methods. Which means that if `eval` is called during `train`, it's the latter
that will account for its memory usage and that of the former.
This also means that if any other tool that is used along the [`Trainer`] calls
`torch.cuda.reset_peak_memory_stats`, the gpu peak memory stats could be invalid. And the [`Trainer`] will disrupt
the normal behavior of any such tools that rely on calling `torch.cuda.reset_peak_memory_stats` themselves.
For best performance you may want to consider turning the memory profiling off for production runs.
"""
if not self.is_world_process_zero():
return
print(f"***** {split} metrics *****")
metrics_formatted = self.metrics_format(metrics)
k_width = max(len(str(x)) for x in metrics_formatted.keys())
v_width = max(len(str(x)) for x in metrics_formatted.values())
for key in sorted(metrics_formatted.keys()):
print(f" {key: <{k_width}} = {metrics_formatted[key]:>{v_width}}")
def save_metrics(self, split, metrics, combined=True):
"""
Save metrics into a json file for that split, e.g. `train_results.json`.
Under distributed environment this is done only for a process with rank 0.
Args:
split (`str`):
Mode/split name: one of `train`, `eval`, `test`, `all`
metrics (`Dict[str, float]`):
The metrics returned from train/evaluate/predict
combined (`bool`, *optional*, defaults to `True`):
Creates combined metrics by updating `all_results.json` with metrics of this call
To understand the metrics please read the docstring of [`~Trainer.log_metrics`]. The only difference is that raw
unformatted numbers are saved in the current method.
"""
if not self.is_world_process_zero():
return
path = os.path.join(self.args.output_dir, f"{split}_results.json")
with open(path, "w") as f:
json.dump(metrics, f, indent=4, sort_keys=True)
if combined:
path = os.path.join(self.args.output_dir, "all_results.json")
if os.path.exists(path):
with open(path, "r") as f:
all_metrics = json.load(f)
else:
all_metrics = {}
all_metrics.update(metrics)
with open(path, "w") as f:
json.dump(all_metrics, f, indent=4, sort_keys=True)
def save_state(self):
"""
Saves the Trainer state, since Trainer.save_model saves only the tokenizer with the model
Under distributed environment this is done only for a process with rank 0.
"""
if not self.is_world_process_zero():
return
path = os.path.join(self.args.output_dir, "trainer_state.json")
self.state.save_to_json(path)
def get_model_param_count(model, trainable_only=False):
"""
Calculate model's total param count. If trainable_only is True then count only those requiring grads
"""
if is_deepspeed_zero3_enabled():
def numel(p):
return p.ds_numel if hasattr(p, "ds_numel") else p.numel()
else:
def numel(p):
return p.numel()
return sum(numel(p) for p in model.parameters() if not trainable_only or p.requires_grad)
def get_parameter_names(model, forbidden_layer_types):
"""
Returns the names of the model parameters that are not inside a forbidden layer.
"""
result = []
for name, child in model.named_children():
result += [
f"{name}.{n}"
for n in get_parameter_names(child, forbidden_layer_types)
if not isinstance(child, tuple(forbidden_layer_types))
]
# Add model specific parameters (defined with nn.Parameter) since they are not in any child.
result += list(model._parameters.keys())
return result
def get_module_class_from_name(module, name):
"""
Gets a class from a module by its name.
Args:
module (`torch.nn.Module`): The module to get the class from.
name (`str`): The name of the class.
"""
modules_children = list(module.children())
if module.__class__.__name__ == name:
return module.__class__
elif len(modules_children) == 0:
return
else:
for child_module in modules_children:
module_class = get_module_class_from_name(child_module, name)
if module_class is not None:
return module_class
def remove_dummy_checkpoint(is_main_process, output_dir, filenames):
if is_main_process:
for filename in filenames:
file = os.path.join(output_dir, filename)
if os.path.isfile(file):
os.remove(file)
if is_sagemaker_mp_enabled():
import smdistributed.modelparallel.torch as smp
@smp.step()
def smp_forward_backward(model, inputs, gradient_accumulation_steps=1):
outputs = model(**inputs)
loss = outputs["loss"] if isinstance(outputs, dict) else outputs[0]
loss /= gradient_accumulation_steps
model.backward(loss)
return loss
@smp.step()
def smp_forward_only(model, inputs):
return model(**inputs)
def smp_gather(tensor):
if isinstance(tensor, (list, tuple)):
return type(tensor)(smp_gather(t) for t in tensor)
elif isinstance(tensor, dict):
return type(tensor)({k: smp_gather(v) for k, v in tensor.items()})
elif not isinstance(tensor, torch.Tensor):
raise TypeError(
f"Can't gather the values of type {type(tensor)}, only of nested list/tuple/dicts of tensors."
)
all_tensors = smp.allgather(tensor, smp.CommGroup.DP_GROUP)
all_tensors = [atleast_1d(t) for t in all_tensors]
return torch.cat([t.cpu() for t in all_tensors], dim=0)
def smp_nested_concat(tensor):
if isinstance(tensor, (list, tuple)):
return type(tensor)(smp_nested_concat(t) for t in tensor)
elif isinstance(tensor, dict):
return type(tensor)({k: smp_nested_concat(v) for k, v in tensor.items()})
# It doesn't seem possible to check here if `tensor` is a StepOutput because StepOutput lives in `smp.step`
# which is also the name of the decorator so Python is confused.
return tensor.concat().detach().cpu()
@dataclass
class AcceleratorConfig:
"""
A subset of arguments relating to the underlying [`accelerate.Accelerator`]
implementation utilized in the `Trainer` that can be customized.
Mostly relating to data.
Parameters:
split_batches (`bool`, *optional*, defaults to `False`):
Whether or not the accelerator should split the batches yielded by the dataloaders across the devices. If
`True` the actual batch size used will be the same on any kind of distributed processes, but it must be a
round multiple of the `num_processes` you are using. If `False`, actual batch size used will be the one set
in your script multiplied by the number of processes.
dispatch_batches (`bool`, *optional*):
If set to `True`, the dataloader prepared by the Accelerator is only iterated through on the main process
and then the batches are split and broadcast to each process. Will default to `True` for `DataLoader` whose
underlying dataset is an `IterableDataset`, `False` otherwise.
even_batches (`bool`, *optional*, defaults to `True`):
If set to `True`, in cases where the total batch size across all processes does not exactly divide the
dataset, samples at the start of the dataset will be duplicated so the batch can be divided equally among
all workers.
use_seedable_sampler (`bool`, *optional*, defaults to `True`):
Whether or not use a fully seedable random sampler ([`accelerate.data_loader.SeedableRandomSampler`]). Ensures
training results are fully reproducable using a different sampling technique. While seed-to-seed results
may differ, on average the differences are neglible when using multiple different seeds to compare. Should
also be ran with [`~utils.set_seed`] for the best results.
gradient_accumulation_kwargs (`dict`, *optional*):
Additional kwargs to configure gradient accumulation, see [`accelerate.utils.GradientAccumulationPlugin`].
Any of the following (optional) keys are acceptable:
num_steps (`int`): Will take precedence over [`~.TrainingArguments.gradient_accumulation_steps`] if
the latter is set to 1, otherwise an exception will be raised.
adjust_scheduler (`bool`): Whether to adjust the scheduler steps to account for [`~.TrainingArguments.gradient_accumulation_steps`].
The [`accelerate.utils.GradientAccumulationPlugin`] default is `True`.
sync_each_batch (`bool`): Whether to synchronize the gradients at each data batch.
The [`accelerate.utils.GradientAccumulationPlugin`] default is `False`.
non_blocking (`bool`, *optional*, defaults to `False`):
Whether to use non-blocking CUDA calls to help minimize synchronization during
distributed training with prepared `DataLoader` inputs being moved to device.
Best if used with `pin_memory=True` in the `TrainingArguments`.
"""
# Data related arguments
split_batches: bool = field(
default=False,
metadata={
"help": "Whether or not the accelerator should split the batches yielded by the dataloaders across the devices. If"
" `True` the actual batch size used will be the same on any kind of distributed processes, but it must be a"
" round multiple of the `num_processes` you are using. If `False`, actual batch size used will be the one set"
" in your script multiplied by the number of processes."
},
)
dispatch_batches: bool = field(
default=None,
metadata={
"help": "If set to `True`, the dataloader prepared by the Accelerator is only iterated through on the main process"
" and then the batches are split and broadcast to each process. Will default to `True` for `DataLoader` whose"
" underlying dataset is an `IterableDataslet`, `False` otherwise."
},
)
even_batches: bool = field(
default=True,
metadata={
"help": "If set to `True`, in cases where the total batch size across all processes does not exactly divide the"
" dataset, samples at the start of the dataset will be duplicated so the batch can be divided equally among"
" all workers."
},
)
use_seedable_sampler: bool = field(
default=True,
metadata={
"help": "Whether or not use a fully seedable random sampler ([`accelerate.data_loader.SeedableRandomSampler`])."
"Ensures training results are fully reproducable using a different sampling technique. "
"While seed-to-seed results may differ, on average the differences are neglible when using"
"multiple different seeds to compare. Should also be ran with [`~utils.set_seed`] for the best results."
},
)
non_blocking: Optional[bool] = field(
default=False,
metadata={
"help": "Whether to use non-blocking CUDA calls to help minimize synchronization during "
"distributed training with prepared `DataLoader` inputs being moved to device. "
"Best if used with `pin_memory=True` in the `TrainingArguments`. Requires accelerate "
"v0.30.0."
},
)
gradient_accumulation_kwargs: Optional[Dict] = field(
default=None,
metadata={
"help": "Additional kwargs to configure gradient accumulation, see [`accelerate.utils.GradientAccumulationPlugin`]. "
"Any of the following (optional) keys are acceptable: "
" num_steps (`int`): Will take precedence over [`~.TrainingArguments.gradient_accumulation_steps`] if "
" the latter is set to 1, otherwise an exception will be raised. "
" adjust_scheduler (`bool`): Whether to adjust the scheduler steps to account for [`~.TrainingArguments.gradient_accumulation_steps`]. "
" The [`accelerate.utils.GradientAccumulationPlugin`] default is `True`. "
" sync_each_batch (`bool`): Whether to synchronize the gradients at each data batch. "
" The [`accelerate.utils.GradientAccumulationPlugin`] default is `False`."
},
)
@classmethod
def from_json_file(cls, json_file):
# Check if exists
open_file = io.open if os.path.exists(json_file) else open
with open_file(json_file, "r", encoding="utf-8") as f:
config_dict = json.load(f)
# Check for keys and load sensible defaults
extra_keys = sorted(key for key in config_dict.keys() if key not in cls.__dataclass_fields__.keys())
if len(extra_keys) > 0:
raise ValueError(
f"The config file at {json_file} had unknown keys ({extra_keys}), please try upgrading your `transformers`"
" version or fix (and potentially remove these keys) from your config file."
)
return cls(**config_dict)
def to_dict(self):
return copy.deepcopy(self.__dict__)
class LayerWiseDummyOptimizer(torch.optim.Optimizer):
"""
For Layer-wise optimizers such as GaLoRE optimizer, the optimization
step is already done through the post gradient hooks. Therefore
the trick is to create a dummy optimizer that can take arbitrary
args and kwargs and return a no-op during training.
Initial idea from @hiyouga in LLaMA-Factory:
https://github.com/hiyouga/LLaMA-Factory/commit/8664262cde3919e10eaecbd66e8c5d356856362e#diff-ebe08ab14496dfb9e06075f0fdd36799ef6d1535cc4dd4715b74c4e3e06fe3ba
"""
def __init__(self, optimizer_dict=None, *args, **kwargs):
dummy_tensor = torch.randn(1, 1)
self.optimizer_dict = optimizer_dict
super().__init__([dummy_tensor], {"lr": kwargs.get("lr", 1e-03)})
def zero_grad(self, set_to_none: bool = True) -> None:
pass
def step(self, closure=None) -> Optional[float]:
pass
class LayerWiseDummyScheduler(LRScheduler):
"""
For Layer-wise optimizers such as GaLoRE optimizer, the optimization and scheduling step
are already done through the post gradient hooks. Therefore
the trick is to create a dummy scheduler that can take arbitrary
args and kwargs and return a no-op during training.
"""
def __init__(self, *args, **kwargs):
optimizer = LayerWiseDummyOptimizer()
last_epoch = -1
verbose = False
super().__init__(optimizer, last_epoch, verbose)
def get_lr(self):
return [group["lr"] for group in self.optimizer.param_groups]
def _get_closed_form_lr(self):
return self.base_lrs
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/audio_utils.py | # coding=utf-8
# Copyright 2023 The HuggingFace Inc. team and the librosa & torchaudio authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Audio processing functions to extract features from audio waveforms. This code is pure numpy to support all frameworks
and remove unnecessary dependencies.
"""
import warnings
from typing import Optional, Tuple, Union
import numpy as np
def hertz_to_mel(freq: Union[float, np.ndarray], mel_scale: str = "htk") -> Union[float, np.ndarray]:
"""
Convert frequency from hertz to mels.
Args:
freq (`float` or `np.ndarray`):
The frequency, or multiple frequencies, in hertz (Hz).
mel_scale (`str`, *optional*, defaults to `"htk"`):
The mel frequency scale to use, `"htk"`, `"kaldi"` or `"slaney"`.
Returns:
`float` or `np.ndarray`: The frequencies on the mel scale.
"""
if mel_scale not in ["slaney", "htk", "kaldi"]:
raise ValueError('mel_scale should be one of "htk", "slaney" or "kaldi".')
if mel_scale == "htk":
return 2595.0 * np.log10(1.0 + (freq / 700.0))
elif mel_scale == "kaldi":
return 1127.0 * np.log(1.0 + (freq / 700.0))
min_log_hertz = 1000.0
min_log_mel = 15.0
logstep = 27.0 / np.log(6.4)
mels = 3.0 * freq / 200.0
if isinstance(freq, np.ndarray):
log_region = freq >= min_log_hertz
mels[log_region] = min_log_mel + np.log(freq[log_region] / min_log_hertz) * logstep
elif freq >= min_log_hertz:
mels = min_log_mel + np.log(freq / min_log_hertz) * logstep
return mels
def mel_to_hertz(mels: Union[float, np.ndarray], mel_scale: str = "htk") -> Union[float, np.ndarray]:
"""
Convert frequency from mels to hertz.
Args:
mels (`float` or `np.ndarray`):
The frequency, or multiple frequencies, in mels.
mel_scale (`str`, *optional*, `"htk"`):
The mel frequency scale to use, `"htk"`, `"kaldi"` or `"slaney"`.
Returns:
`float` or `np.ndarray`: The frequencies in hertz.
"""
if mel_scale not in ["slaney", "htk", "kaldi"]:
raise ValueError('mel_scale should be one of "htk", "slaney" or "kaldi".')
if mel_scale == "htk":
return 700.0 * (np.power(10, mels / 2595.0) - 1.0)
elif mel_scale == "kaldi":
return 700.0 * (np.exp(mels / 1127.0) - 1.0)
min_log_hertz = 1000.0
min_log_mel = 15.0
logstep = np.log(6.4) / 27.0
freq = 200.0 * mels / 3.0
if isinstance(mels, np.ndarray):
log_region = mels >= min_log_mel
freq[log_region] = min_log_hertz * np.exp(logstep * (mels[log_region] - min_log_mel))
elif mels >= min_log_mel:
freq = min_log_hertz * np.exp(logstep * (mels - min_log_mel))
return freq
def hertz_to_octave(
freq: Union[float, np.ndarray], tuning: Optional[float] = 0.0, bins_per_octave: Optional[int] = 12
):
"""
Convert frequency from hertz to fractional octave numbers.
Adapted from *librosa*.
Args:
freq (`float` or `np.ndarray`):
The frequency, or multiple frequencies, in hertz (Hz).
tuning (`float`, defaults to `0.`):
Tuning deviation from the Stuttgart pitch (A440) in (fractional) bins per octave.
bins_per_octave (`int`, defaults to `12`):
Number of bins per octave.
Returns:
`float` or `np.ndarray`: The frequencies on the octave scale.
"""
stuttgart_pitch = 440.0 * 2.0 ** (tuning / bins_per_octave)
octave = np.log2(freq / (float(stuttgart_pitch) / 16))
return octave
def _create_triangular_filter_bank(fft_freqs: np.ndarray, filter_freqs: np.ndarray) -> np.ndarray:
"""
Creates a triangular filter bank.
Adapted from *torchaudio* and *librosa*.
Args:
fft_freqs (`np.ndarray` of shape `(num_frequency_bins,)`):
Discrete frequencies of the FFT bins in Hz.
filter_freqs (`np.ndarray` of shape `(num_mel_filters,)`):
Center frequencies of the triangular filters to create, in Hz.
Returns:
`np.ndarray` of shape `(num_frequency_bins, num_mel_filters)`
"""
filter_diff = np.diff(filter_freqs)
slopes = np.expand_dims(filter_freqs, 0) - np.expand_dims(fft_freqs, 1)
down_slopes = -slopes[:, :-2] / filter_diff[:-1]
up_slopes = slopes[:, 2:] / filter_diff[1:]
return np.maximum(np.zeros(1), np.minimum(down_slopes, up_slopes))
def chroma_filter_bank(
num_frequency_bins: int,
num_chroma: int,
sampling_rate: int,
tuning: float = 0.0,
power: Optional[float] = 2.0,
weighting_parameters: Optional[Tuple[float]] = (5.0, 2),
start_at_c_chroma: Optional[bool] = True,
):
"""
Creates a chroma filter bank, i.e a linear transformation to project spectrogram bins onto chroma bins.
Adapted from *librosa*.
Args:
num_frequency_bins (`int`):
Number of frequencies used to compute the spectrogram (should be the same as in `stft`).
num_chroma (`int`):
Number of chroma bins (i.e pitch classes).
sampling_rate (`float`):
Sample rate of the audio waveform.
tuning (`float`):
Tuning deviation from A440 in fractions of a chroma bin.
power (`float`, *optional*, defaults to 2.0):
If 12.0, normalizes each column with their L2 norm. If 1.0, normalizes each column with their L1 norm.
weighting_parameters (`Tuple[float]`, *optional*, defaults to `(5., 2.)`):
If specified, apply a Gaussian weighting parameterized by the first element of the tuple being the center and
the second element being the Gaussian half-width.
start_at_c_chroma (`float`, *optional*, defaults to `True`):
If True, the filter bank will start at the 'C' pitch class. Otherwise, it will start at 'A'.
Returns:
`np.ndarray` of shape `(num_frequency_bins, num_chroma)`
"""
# Get the FFT bins, not counting the DC component
frequencies = np.linspace(0, sampling_rate, num_frequency_bins, endpoint=False)[1:]
freq_bins = num_chroma * hertz_to_octave(frequencies, tuning=tuning, bins_per_octave=num_chroma)
# make up a value for the 0 Hz bin = 1.5 octaves below bin 1
# (so chroma is 50% rotated from bin 1, and bin width is broad)
freq_bins = np.concatenate(([freq_bins[0] - 1.5 * num_chroma], freq_bins))
bins_width = np.concatenate((np.maximum(freq_bins[1:] - freq_bins[:-1], 1.0), [1]))
chroma_filters = np.subtract.outer(freq_bins, np.arange(0, num_chroma, dtype="d")).T
num_chroma2 = np.round(float(num_chroma) / 2)
# Project into range -num_chroma/2 .. num_chroma/2
# add on fixed offset of 10*num_chroma to ensure all values passed to
# rem are positive
chroma_filters = np.remainder(chroma_filters + num_chroma2 + 10 * num_chroma, num_chroma) - num_chroma2
# Gaussian bumps - 2*D to make them narrower
chroma_filters = np.exp(-0.5 * (2 * chroma_filters / np.tile(bins_width, (num_chroma, 1))) ** 2)
# normalize each column
if power is not None:
chroma_filters = chroma_filters / np.sum(chroma_filters**power, axis=0, keepdims=True) ** (1.0 / power)
# Maybe apply scaling for fft bins
if weighting_parameters is not None:
center, half_width = weighting_parameters
chroma_filters *= np.tile(
np.exp(-0.5 * (((freq_bins / num_chroma - center) / half_width) ** 2)),
(num_chroma, 1),
)
if start_at_c_chroma:
chroma_filters = np.roll(chroma_filters, -3 * (num_chroma // 12), axis=0)
# remove aliasing columns, copy to ensure row-contiguity
return np.ascontiguousarray(chroma_filters[:, : int(1 + num_frequency_bins / 2)])
def mel_filter_bank(
num_frequency_bins: int,
num_mel_filters: int,
min_frequency: float,
max_frequency: float,
sampling_rate: int,
norm: Optional[str] = None,
mel_scale: str = "htk",
triangularize_in_mel_space: bool = False,
) -> np.ndarray:
"""
Creates a frequency bin conversion matrix used to obtain a mel spectrogram. This is called a *mel filter bank*, and
various implementation exist, which differ in the number of filters, the shape of the filters, the way the filters
are spaced, the bandwidth of the filters, and the manner in which the spectrum is warped. The goal of these
features is to approximate the non-linear human perception of the variation in pitch with respect to the frequency.
Different banks of mel filters were introduced in the literature. The following variations are supported:
- MFCC FB-20: introduced in 1980 by Davis and Mermelstein, it assumes a sampling frequency of 10 kHz and a speech
bandwidth of `[0, 4600]` Hz.
- MFCC FB-24 HTK: from the Cambridge HMM Toolkit (HTK) (1995) uses a filter bank of 24 filters for a speech
bandwidth of `[0, 8000]` Hz. This assumes sampling rate ≥ 16 kHz.
- MFCC FB-40: from the Auditory Toolbox for MATLAB written by Slaney in 1998, assumes a sampling rate of 16 kHz and
speech bandwidth of `[133, 6854]` Hz. This version also includes area normalization.
- HFCC-E FB-29 (Human Factor Cepstral Coefficients) of Skowronski and Harris (2004), assumes a sampling rate of
12.5 kHz and speech bandwidth of `[0, 6250]` Hz.
This code is adapted from *torchaudio* and *librosa*. Note that the default parameters of torchaudio's
`melscale_fbanks` implement the `"htk"` filters while librosa uses the `"slaney"` implementation.
Args:
num_frequency_bins (`int`):
Number of frequencies used to compute the spectrogram (should be the same as in `stft`).
num_mel_filters (`int`):
Number of mel filters to generate.
min_frequency (`float`):
Lowest frequency of interest in Hz.
max_frequency (`float`):
Highest frequency of interest in Hz. This should not exceed `sampling_rate / 2`.
sampling_rate (`int`):
Sample rate of the audio waveform.
norm (`str`, *optional*):
If `"slaney"`, divide the triangular mel weights by the width of the mel band (area normalization).
mel_scale (`str`, *optional*, defaults to `"htk"`):
The mel frequency scale to use, `"htk"`, `"kaldi"` or `"slaney"`.
triangularize_in_mel_space (`bool`, *optional*, defaults to `False`):
If this option is enabled, the triangular filter is applied in mel space rather than frequency space. This
should be set to `true` in order to get the same results as `torchaudio` when computing mel filters.
Returns:
`np.ndarray` of shape (`num_frequency_bins`, `num_mel_filters`): Triangular filter bank matrix. This is a
projection matrix to go from a spectrogram to a mel spectrogram.
"""
if norm is not None and norm != "slaney":
raise ValueError('norm must be one of None or "slaney"')
# center points of the triangular mel filters
mel_min = hertz_to_mel(min_frequency, mel_scale=mel_scale)
mel_max = hertz_to_mel(max_frequency, mel_scale=mel_scale)
mel_freqs = np.linspace(mel_min, mel_max, num_mel_filters + 2)
filter_freqs = mel_to_hertz(mel_freqs, mel_scale=mel_scale)
if triangularize_in_mel_space:
# frequencies of FFT bins in Hz, but filters triangularized in mel space
fft_bin_width = sampling_rate / (num_frequency_bins * 2)
fft_freqs = hertz_to_mel(fft_bin_width * np.arange(num_frequency_bins), mel_scale=mel_scale)
filter_freqs = mel_freqs
else:
# frequencies of FFT bins in Hz
fft_freqs = np.linspace(0, sampling_rate // 2, num_frequency_bins)
mel_filters = _create_triangular_filter_bank(fft_freqs, filter_freqs)
if norm is not None and norm == "slaney":
# Slaney-style mel is scaled to be approx constant energy per channel
enorm = 2.0 / (filter_freqs[2 : num_mel_filters + 2] - filter_freqs[:num_mel_filters])
mel_filters *= np.expand_dims(enorm, 0)
if (mel_filters.max(axis=0) == 0.0).any():
warnings.warn(
"At least one mel filter has all zero values. "
f"The value for `num_mel_filters` ({num_mel_filters}) may be set too high. "
f"Or, the value for `num_frequency_bins` ({num_frequency_bins}) may be set too low."
)
return mel_filters
def optimal_fft_length(window_length: int) -> int:
"""
Finds the best FFT input size for a given `window_length`. This function takes a given window length and, if not
already a power of two, rounds it up to the next power or two.
The FFT algorithm works fastest when the length of the input is a power of two, which may be larger than the size
of the window or analysis frame. For example, if the window is 400 samples, using an FFT input size of 512 samples
is more optimal than an FFT size of 400 samples. Using a larger FFT size does not affect the detected frequencies,
it simply gives a higher frequency resolution (i.e. the frequency bins are smaller).
"""
return 2 ** int(np.ceil(np.log2(window_length)))
def window_function(
window_length: int,
name: str = "hann",
periodic: bool = True,
frame_length: Optional[int] = None,
center: bool = True,
) -> np.ndarray:
"""
Returns an array containing the specified window. This window is intended to be used with `stft`.
The following window types are supported:
- `"boxcar"`: a rectangular window
- `"hamming"`: the Hamming window
- `"hann"`: the Hann window
- `"povey"`: the Povey window
Args:
window_length (`int`):
The length of the window in samples.
name (`str`, *optional*, defaults to `"hann"`):
The name of the window function.
periodic (`bool`, *optional*, defaults to `True`):
Whether the window is periodic or symmetric.
frame_length (`int`, *optional*):
The length of the analysis frames in samples. Provide a value for `frame_length` if the window is smaller
than the frame length, so that it will be zero-padded.
center (`bool`, *optional*, defaults to `True`):
Whether to center the window inside the FFT buffer. Only used when `frame_length` is provided.
Returns:
`np.ndarray` of shape `(window_length,)` or `(frame_length,)` containing the window.
"""
length = window_length + 1 if periodic else window_length
if name == "boxcar":
window = np.ones(length)
elif name in ["hamming", "hamming_window"]:
window = np.hamming(length)
elif name in ["hann", "hann_window"]:
window = np.hanning(length)
elif name in ["povey"]:
window = np.power(np.hanning(length), 0.85)
else:
raise ValueError(f"Unknown window function '{name}'")
if periodic:
window = window[:-1]
if frame_length is None:
return window
if window_length > frame_length:
raise ValueError(
f"Length of the window ({window_length}) may not be larger than frame_length ({frame_length})"
)
padded_window = np.zeros(frame_length)
offset = (frame_length - window_length) // 2 if center else 0
padded_window[offset : offset + window_length] = window
return padded_window
# TODO This method does not support batching yet as we are mainly focused on inference.
def spectrogram(
waveform: np.ndarray,
window: np.ndarray,
frame_length: int,
hop_length: int,
fft_length: Optional[int] = None,
power: Optional[float] = 1.0,
center: bool = True,
pad_mode: str = "reflect",
onesided: bool = True,
preemphasis: Optional[float] = None,
mel_filters: Optional[np.ndarray] = None,
mel_floor: float = 1e-10,
log_mel: Optional[str] = None,
reference: float = 1.0,
min_value: float = 1e-10,
db_range: Optional[float] = None,
remove_dc_offset: Optional[bool] = None,
dtype: np.dtype = np.float32,
) -> np.ndarray:
"""
Calculates a spectrogram over one waveform using the Short-Time Fourier Transform.
This function can create the following kinds of spectrograms:
- amplitude spectrogram (`power = 1.0`)
- power spectrogram (`power = 2.0`)
- complex-valued spectrogram (`power = None`)
- log spectrogram (use `log_mel` argument)
- mel spectrogram (provide `mel_filters`)
- log-mel spectrogram (provide `mel_filters` and `log_mel`)
How this works:
1. The input waveform is split into frames of size `frame_length` that are partially overlapping by `frame_length
- hop_length` samples.
2. Each frame is multiplied by the window and placed into a buffer of size `fft_length`.
3. The DFT is taken of each windowed frame.
4. The results are stacked into a spectrogram.
We make a distinction between the following "blocks" of sample data, each of which may have a different lengths:
- The analysis frame. This is the size of the time slices that the input waveform is split into.
- The window. Each analysis frame is multiplied by the window to avoid spectral leakage.
- The FFT input buffer. The length of this determines how many frequency bins are in the spectrogram.
In this implementation, the window is assumed to be zero-padded to have the same size as the analysis frame. A
padded window can be obtained from `window_function()`. The FFT input buffer may be larger than the analysis frame,
typically the next power of two.
Note: This function is not optimized for speed yet. It should be mostly compatible with `librosa.stft` and
`torchaudio.functional.transforms.Spectrogram`, although it is more flexible due to the different ways spectrograms
can be constructed.
Args:
waveform (`np.ndarray` of shape `(length,)`):
The input waveform. This must be a single real-valued, mono waveform.
window (`np.ndarray` of shape `(frame_length,)`):
The windowing function to apply, including zero-padding if necessary. The actual window length may be
shorter than `frame_length`, but we're assuming the array has already been zero-padded.
frame_length (`int`):
The length of the analysis frames in samples. With librosa this is always equal to `fft_length` but we also
allow smaller sizes.
hop_length (`int`):
The stride between successive analysis frames in samples.
fft_length (`int`, *optional*):
The size of the FFT buffer in samples. This determines how many frequency bins the spectrogram will have.
For optimal speed, this should be a power of two. If `None`, uses `frame_length`.
power (`float`, *optional*, defaults to 1.0):
If 1.0, returns the amplitude spectrogram. If 2.0, returns the power spectrogram. If `None`, returns
complex numbers.
center (`bool`, *optional*, defaults to `True`):
Whether to pad the waveform so that frame `t` is centered around time `t * hop_length`. If `False`, frame
`t` will start at time `t * hop_length`.
pad_mode (`str`, *optional*, defaults to `"reflect"`):
Padding mode used when `center` is `True`. Possible values are: `"constant"` (pad with zeros), `"edge"`
(pad with edge values), `"reflect"` (pads with mirrored values).
onesided (`bool`, *optional*, defaults to `True`):
If True, only computes the positive frequencies and returns a spectrogram containing `fft_length // 2 + 1`
frequency bins. If False, also computes the negative frequencies and returns `fft_length` frequency bins.
preemphasis (`float`, *optional*)
Coefficient for a low-pass filter that applies pre-emphasis before the DFT.
mel_filters (`np.ndarray` of shape `(num_freq_bins, num_mel_filters)`, *optional*):
The mel filter bank. If supplied, applies a this filter bank to create a mel spectrogram.
mel_floor (`float`, *optional*, defaults to 1e-10):
Minimum value of mel frequency banks.
log_mel (`str`, *optional*):
How to convert the spectrogram to log scale. Possible options are: `None` (don't convert), `"log"` (take
the natural logarithm) `"log10"` (take the base-10 logarithm), `"dB"` (convert to decibels). Can only be
used when `power` is not `None`.
reference (`float`, *optional*, defaults to 1.0):
Sets the input spectrogram value that corresponds to 0 dB. For example, use `np.max(spectrogram)` to set
the loudest part to 0 dB. Must be greater than zero.
min_value (`float`, *optional*, defaults to `1e-10`):
The spectrogram will be clipped to this minimum value before conversion to decibels, to avoid taking
`log(0)`. For a power spectrogram, the default of `1e-10` corresponds to a minimum of -100 dB. For an
amplitude spectrogram, the value `1e-5` corresponds to -100 dB. Must be greater than zero.
db_range (`float`, *optional*):
Sets the maximum dynamic range in decibels. For example, if `db_range = 80`, the difference between the
peak value and the smallest value will never be more than 80 dB. Must be greater than zero.
remove_dc_offset (`bool`, *optional*):
Subtract mean from waveform on each frame, applied before pre-emphasis. This should be set to `true` in
order to get the same results as `torchaudio.compliance.kaldi.fbank` when computing mel filters.
dtype (`np.dtype`, *optional*, defaults to `np.float32`):
Data type of the spectrogram tensor. If `power` is None, this argument is ignored and the dtype will be
`np.complex64`.
Returns:
`nd.array` containing a spectrogram of shape `(num_frequency_bins, length)` for a regular spectrogram or shape
`(num_mel_filters, length)` for a mel spectrogram.
"""
window_length = len(window)
if fft_length is None:
fft_length = frame_length
if frame_length > fft_length:
raise ValueError(f"frame_length ({frame_length}) may not be larger than fft_length ({fft_length})")
if window_length != frame_length:
raise ValueError(f"Length of the window ({window_length}) must equal frame_length ({frame_length})")
if hop_length <= 0:
raise ValueError("hop_length must be greater than zero")
if waveform.ndim != 1:
raise ValueError(f"Input waveform must have only one dimension, shape is {waveform.shape}")
if np.iscomplexobj(waveform):
raise ValueError("Complex-valued input waveforms are not currently supported")
if power is None and mel_filters is not None:
raise ValueError(
"You have provided `mel_filters` but `power` is `None`. Mel spectrogram computation is not yet supported for complex-valued spectrogram."
"Specify `power` to fix this issue."
)
# center pad the waveform
if center:
padding = [(int(frame_length // 2), int(frame_length // 2))]
waveform = np.pad(waveform, padding, mode=pad_mode)
# promote to float64, since np.fft uses float64 internally
waveform = waveform.astype(np.float64)
window = window.astype(np.float64)
# split waveform into frames of frame_length size
num_frames = int(1 + np.floor((waveform.size - frame_length) / hop_length))
num_frequency_bins = (fft_length // 2) + 1 if onesided else fft_length
spectrogram = np.empty((num_frames, num_frequency_bins), dtype=np.complex64)
# rfft is faster than fft
fft_func = np.fft.rfft if onesided else np.fft.fft
buffer = np.zeros(fft_length)
timestep = 0
for frame_idx in range(num_frames):
buffer[:frame_length] = waveform[timestep : timestep + frame_length]
if remove_dc_offset:
buffer[:frame_length] = buffer[:frame_length] - buffer[:frame_length].mean()
if preemphasis is not None:
buffer[1:frame_length] -= preemphasis * buffer[: frame_length - 1]
buffer[0] *= 1 - preemphasis
buffer[:frame_length] *= window
spectrogram[frame_idx] = fft_func(buffer)
timestep += hop_length
# note: ** is much faster than np.power
if power is not None:
spectrogram = np.abs(spectrogram, dtype=np.float64) ** power
spectrogram = spectrogram.T
if mel_filters is not None:
spectrogram = np.maximum(mel_floor, np.dot(mel_filters.T, spectrogram))
if power is not None and log_mel is not None:
if log_mel == "log":
spectrogram = np.log(spectrogram)
elif log_mel == "log10":
spectrogram = np.log10(spectrogram)
elif log_mel == "dB":
if power == 1.0:
spectrogram = amplitude_to_db(spectrogram, reference, min_value, db_range)
elif power == 2.0:
spectrogram = power_to_db(spectrogram, reference, min_value, db_range)
else:
raise ValueError(f"Cannot use log_mel option '{log_mel}' with power {power}")
else:
raise ValueError(f"Unknown log_mel option: {log_mel}")
spectrogram = np.asarray(spectrogram, dtype)
return spectrogram
def power_to_db(
spectrogram: np.ndarray,
reference: float = 1.0,
min_value: float = 1e-10,
db_range: Optional[float] = None,
) -> np.ndarray:
"""
Converts a power spectrogram to the decibel scale. This computes `10 * log10(spectrogram / reference)`, using basic
logarithm properties for numerical stability.
The motivation behind applying the log function on the (mel) spectrogram is that humans do not hear loudness on a
linear scale. Generally to double the perceived volume of a sound we need to put 8 times as much energy into it.
This means that large variations in energy may not sound all that different if the sound is loud to begin with.
This compression operation makes the (mel) spectrogram features match more closely what humans actually hear.
Based on the implementation of `librosa.power_to_db`.
Args:
spectrogram (`np.ndarray`):
The input power (mel) spectrogram. Note that a power spectrogram has the amplitudes squared!
reference (`float`, *optional*, defaults to 1.0):
Sets the input spectrogram value that corresponds to 0 dB. For example, use `np.max(spectrogram)` to set
the loudest part to 0 dB. Must be greater than zero.
min_value (`float`, *optional*, defaults to `1e-10`):
The spectrogram will be clipped to this minimum value before conversion to decibels, to avoid taking
`log(0)`. The default of `1e-10` corresponds to a minimum of -100 dB. Must be greater than zero.
db_range (`float`, *optional*):
Sets the maximum dynamic range in decibels. For example, if `db_range = 80`, the difference between the
peak value and the smallest value will never be more than 80 dB. Must be greater than zero.
Returns:
`np.ndarray`: the spectrogram in decibels
"""
if reference <= 0.0:
raise ValueError("reference must be greater than zero")
if min_value <= 0.0:
raise ValueError("min_value must be greater than zero")
reference = max(min_value, reference)
spectrogram = np.clip(spectrogram, a_min=min_value, a_max=None)
spectrogram = 10.0 * (np.log10(spectrogram) - np.log10(reference))
if db_range is not None:
if db_range <= 0.0:
raise ValueError("db_range must be greater than zero")
spectrogram = np.clip(spectrogram, a_min=spectrogram.max() - db_range, a_max=None)
return spectrogram
def amplitude_to_db(
spectrogram: np.ndarray,
reference: float = 1.0,
min_value: float = 1e-5,
db_range: Optional[float] = None,
) -> np.ndarray:
"""
Converts an amplitude spectrogram to the decibel scale. This computes `20 * log10(spectrogram / reference)`, using
basic logarithm properties for numerical stability.
The motivation behind applying the log function on the (mel) spectrogram is that humans do not hear loudness on a
linear scale. Generally to double the perceived volume of a sound we need to put 8 times as much energy into it.
This means that large variations in energy may not sound all that different if the sound is loud to begin with.
This compression operation makes the (mel) spectrogram features match more closely what humans actually hear.
Args:
spectrogram (`np.ndarray`):
The input amplitude (mel) spectrogram.
reference (`float`, *optional*, defaults to 1.0):
Sets the input spectrogram value that corresponds to 0 dB. For example, use `np.max(spectrogram)` to set
the loudest part to 0 dB. Must be greater than zero.
min_value (`float`, *optional*, defaults to `1e-5`):
The spectrogram will be clipped to this minimum value before conversion to decibels, to avoid taking
`log(0)`. The default of `1e-5` corresponds to a minimum of -100 dB. Must be greater than zero.
db_range (`float`, *optional*):
Sets the maximum dynamic range in decibels. For example, if `db_range = 80`, the difference between the
peak value and the smallest value will never be more than 80 dB. Must be greater than zero.
Returns:
`np.ndarray`: the spectrogram in decibels
"""
if reference <= 0.0:
raise ValueError("reference must be greater than zero")
if min_value <= 0.0:
raise ValueError("min_value must be greater than zero")
reference = max(min_value, reference)
spectrogram = np.clip(spectrogram, a_min=min_value, a_max=None)
spectrogram = 20.0 * (np.log10(spectrogram) - np.log10(reference))
if db_range is not None:
if db_range <= 0.0:
raise ValueError("db_range must be greater than zero")
spectrogram = np.clip(spectrogram, a_min=spectrogram.max() - db_range, a_max=None)
return spectrogram
### deprecated functions below this line ###
def get_mel_filter_banks(
nb_frequency_bins: int,
nb_mel_filters: int,
frequency_min: float,
frequency_max: float,
sample_rate: int,
norm: Optional[str] = None,
mel_scale: str = "htk",
) -> np.array:
warnings.warn(
"The function `get_mel_filter_banks` is deprecated and will be removed in version 4.31.0 of Transformers",
FutureWarning,
)
return mel_filter_bank(
num_frequency_bins=nb_frequency_bins,
num_mel_filters=nb_mel_filters,
min_frequency=frequency_min,
max_frequency=frequency_max,
sampling_rate=sample_rate,
norm=norm,
mel_scale=mel_scale,
)
def fram_wave(waveform: np.array, hop_length: int = 160, fft_window_size: int = 400, center: bool = True):
"""
In order to compute the short time fourier transform, the waveform needs to be split in overlapping windowed
segments called `frames`.
The window length (window_length) defines how much of the signal is contained in each frame, while the hop length
defines the step between the beginning of each new frame.
Args:
waveform (`np.array` of shape `(sample_length,)`):
The raw waveform which will be split into smaller chunks.
hop_length (`int`, *optional*, defaults to 160):
Step between each window of the waveform.
fft_window_size (`int`, *optional*, defaults to 400):
Defines the size of the window.
center (`bool`, defaults to `True`):
Whether or not to center each frame around the middle of the frame. Centering is done by reflecting the
waveform on the left and on the right.
Return:
framed_waveform (`np.array` of shape `(waveform.shape // hop_length , fft_window_size)`):
The framed waveforms that can be fed to `np.fft`.
"""
warnings.warn(
"The function `fram_wave` is deprecated and will be removed in version 4.31.0 of Transformers",
FutureWarning,
)
frames = []
for i in range(0, waveform.shape[0] + 1, hop_length):
if center:
half_window = (fft_window_size - 1) // 2 + 1
start = i - half_window if i > half_window else 0
end = i + half_window if i < waveform.shape[0] - half_window else waveform.shape[0]
frame = waveform[start:end]
if start == 0:
padd_width = (-i + half_window, 0)
frame = np.pad(frame, pad_width=padd_width, mode="reflect")
elif end == waveform.shape[0]:
padd_width = (0, (i - waveform.shape[0] + half_window))
frame = np.pad(frame, pad_width=padd_width, mode="reflect")
else:
frame = waveform[i : i + fft_window_size]
frame_width = frame.shape[0]
if frame_width < waveform.shape[0]:
frame = np.lib.pad(
frame, pad_width=(0, fft_window_size - frame_width), mode="constant", constant_values=0
)
frames.append(frame)
frames = np.stack(frames, 0)
return frames
def stft(frames: np.array, windowing_function: np.array, fft_window_size: int = None):
"""
Calculates the complex Short-Time Fourier Transform (STFT) of the given framed signal. Should give the same results
as `torch.stft`.
Args:
frames (`np.array` of dimension `(num_frames, fft_window_size)`):
A framed audio signal obtained using `audio_utils.fram_wav`.
windowing_function (`np.array` of dimension `(nb_frequency_bins, nb_mel_filters)`:
A array reprensenting the function that will be used to reduces the amplitude of the discontinuities at the
boundaries of each frame when computing the STFT. Each frame will be multiplied by the windowing_function.
For more information on the discontinuities, called *Spectral leakage*, refer to [this
tutorial]https://download.ni.com/evaluation/pxi/Understanding%20FFTs%20and%20Windowing.pdf
fft_window_size (`int`, *optional*):
Size of the window om which the Fourier transform is applied. This controls the frequency resolution of the
spectrogram. 400 means that the fourrier transform is computed on windows of 400 samples. The number of
frequency bins (`nb_frequency_bins`) used to divide the window into equal strips is equal to
`(1+fft_window_size)//2`. An increase of the fft_window_size slows the calculus time proportionnally.
Example:
```python
>>> from transformers.audio_utils import stft, fram_wave
>>> import numpy as np
>>> audio = np.random.rand(50)
>>> fft_window_size = 10
>>> hop_length = 2
>>> framed_audio = fram_wave(audio, hop_length, fft_window_size)
>>> spectrogram = stft(framed_audio, np.hanning(fft_window_size + 1))
```
Returns:
spectrogram (`np.ndarray`):
A spectrogram of shape `(num_frames, nb_frequency_bins)` obtained using the STFT algorithm
"""
warnings.warn(
"The function `stft` is deprecated and will be removed in version 4.31.0 of Transformers",
FutureWarning,
)
frame_size = frames.shape[1]
if fft_window_size is None:
fft_window_size = frame_size
if fft_window_size < frame_size:
raise ValueError("FFT size must greater or equal the frame size")
# number of FFT bins to store
nb_frequency_bins = (fft_window_size >> 1) + 1
spectrogram = np.empty((len(frames), nb_frequency_bins), dtype=np.complex64)
fft_signal = np.zeros(fft_window_size)
for f, frame in enumerate(frames):
if windowing_function is not None:
np.multiply(frame, windowing_function, out=fft_signal[:frame_size])
else:
fft_signal[:frame_size] = frame
spectrogram[f] = np.fft.fft(fft_signal, axis=0)[:nb_frequency_bins]
return spectrogram.T
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/image_utils.py | # coding=utf-8
# Copyright 2021 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import base64
import os
from io import BytesIO
from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Tuple, Union
import numpy as np
import requests
from packaging import version
from .utils import (
ExplicitEnum,
is_jax_tensor,
is_tf_tensor,
is_torch_available,
is_torch_tensor,
is_vision_available,
logging,
requires_backends,
to_numpy,
)
from .utils.constants import ( # noqa: F401
IMAGENET_DEFAULT_MEAN,
IMAGENET_DEFAULT_STD,
IMAGENET_STANDARD_MEAN,
IMAGENET_STANDARD_STD,
OPENAI_CLIP_MEAN,
OPENAI_CLIP_STD,
)
if is_vision_available():
import PIL.Image
import PIL.ImageOps
if version.parse(version.parse(PIL.__version__).base_version) >= version.parse("9.1.0"):
PILImageResampling = PIL.Image.Resampling
else:
PILImageResampling = PIL.Image
if TYPE_CHECKING:
if is_torch_available():
import torch
logger = logging.get_logger(__name__)
ImageInput = Union[
"PIL.Image.Image", np.ndarray, "torch.Tensor", List["PIL.Image.Image"], List[np.ndarray], List["torch.Tensor"]
] # noqa
class ChannelDimension(ExplicitEnum):
FIRST = "channels_first"
LAST = "channels_last"
class AnnotationFormat(ExplicitEnum):
COCO_DETECTION = "coco_detection"
COCO_PANOPTIC = "coco_panoptic"
class AnnotionFormat(ExplicitEnum):
COCO_DETECTION = AnnotationFormat.COCO_DETECTION.value
COCO_PANOPTIC = AnnotationFormat.COCO_PANOPTIC.value
AnnotationType = Dict[str, Union[int, str, List[Dict]]]
def is_pil_image(img):
return is_vision_available() and isinstance(img, PIL.Image.Image)
def is_valid_image(img):
return (
(is_vision_available() and isinstance(img, PIL.Image.Image))
or isinstance(img, np.ndarray)
or is_torch_tensor(img)
or is_tf_tensor(img)
or is_jax_tensor(img)
)
def valid_images(imgs):
# If we have an list of images, make sure every image is valid
if isinstance(imgs, (list, tuple)):
for img in imgs:
if not valid_images(img):
return False
# If not a list of tuple, we have been given a single image or batched tensor of images
elif not is_valid_image(imgs):
return False
return True
def is_batched(img):
if isinstance(img, (list, tuple)):
return is_valid_image(img[0])
return False
def is_scaled_image(image: np.ndarray) -> bool:
"""
Checks to see whether the pixel values have already been rescaled to [0, 1].
"""
if image.dtype == np.uint8:
return False
# It's possible the image has pixel values in [0, 255] but is of floating type
return np.min(image) >= 0 and np.max(image) <= 1
def make_list_of_images(images, expected_ndims: int = 3) -> List[ImageInput]:
"""
Ensure that the input is a list of images. If the input is a single image, it is converted to a list of length 1.
If the input is a batch of images, it is converted to a list of images.
Args:
images (`ImageInput`):
Image of images to turn into a list of images.
expected_ndims (`int`, *optional*, defaults to 3):
Expected number of dimensions for a single input image. If the input image has a different number of
dimensions, an error is raised.
"""
if is_batched(images):
return images
# Either the input is a single image, in which case we create a list of length 1
if isinstance(images, PIL.Image.Image):
# PIL images are never batched
return [images]
if is_valid_image(images):
if images.ndim == expected_ndims + 1:
# Batch of images
images = list(images)
elif images.ndim == expected_ndims:
# Single image
images = [images]
else:
raise ValueError(
f"Invalid image shape. Expected either {expected_ndims + 1} or {expected_ndims} dimensions, but got"
f" {images.ndim} dimensions."
)
return images
raise ValueError(
"Invalid image type. Expected either PIL.Image.Image, numpy.ndarray, torch.Tensor, tf.Tensor or "
f"jax.ndarray, but got {type(images)}."
)
def to_numpy_array(img) -> np.ndarray:
if not is_valid_image(img):
raise ValueError(f"Invalid image type: {type(img)}")
if is_vision_available() and isinstance(img, PIL.Image.Image):
return np.array(img)
return to_numpy(img)
def infer_channel_dimension_format(
image: np.ndarray, num_channels: Optional[Union[int, Tuple[int, ...]]] = None
) -> ChannelDimension:
"""
Infers the channel dimension format of `image`.
Args:
image (`np.ndarray`):
The image to infer the channel dimension of.
num_channels (`int` or `Tuple[int, ...]`, *optional*, defaults to `(1, 3)`):
The number of channels of the image.
Returns:
The channel dimension of the image.
"""
num_channels = num_channels if num_channels is not None else (1, 3)
num_channels = (num_channels,) if isinstance(num_channels, int) else num_channels
if image.ndim == 3:
first_dim, last_dim = 0, 2
elif image.ndim == 4:
first_dim, last_dim = 1, 3
else:
raise ValueError(f"Unsupported number of image dimensions: {image.ndim}")
if image.shape[first_dim] in num_channels:
return ChannelDimension.FIRST
elif image.shape[last_dim] in num_channels:
return ChannelDimension.LAST
raise ValueError("Unable to infer channel dimension format")
def get_channel_dimension_axis(
image: np.ndarray, input_data_format: Optional[Union[ChannelDimension, str]] = None
) -> int:
"""
Returns the channel dimension axis of the image.
Args:
image (`np.ndarray`):
The image to get the channel dimension axis of.
input_data_format (`ChannelDimension` or `str`, *optional*):
The channel dimension format of the image. If `None`, will infer the channel dimension from the image.
Returns:
The channel dimension axis of the image.
"""
if input_data_format is None:
input_data_format = infer_channel_dimension_format(image)
if input_data_format == ChannelDimension.FIRST:
return image.ndim - 3
elif input_data_format == ChannelDimension.LAST:
return image.ndim - 1
raise ValueError(f"Unsupported data format: {input_data_format}")
def get_image_size(image: np.ndarray, channel_dim: ChannelDimension = None) -> Tuple[int, int]:
"""
Returns the (height, width) dimensions of the image.
Args:
image (`np.ndarray`):
The image to get the dimensions of.
channel_dim (`ChannelDimension`, *optional*):
Which dimension the channel dimension is in. If `None`, will infer the channel dimension from the image.
Returns:
A tuple of the image's height and width.
"""
if channel_dim is None:
channel_dim = infer_channel_dimension_format(image)
if channel_dim == ChannelDimension.FIRST:
return image.shape[-2], image.shape[-1]
elif channel_dim == ChannelDimension.LAST:
return image.shape[-3], image.shape[-2]
else:
raise ValueError(f"Unsupported data format: {channel_dim}")
def is_valid_annotation_coco_detection(annotation: Dict[str, Union[List, Tuple]]) -> bool:
if (
isinstance(annotation, dict)
and "image_id" in annotation
and "annotations" in annotation
and isinstance(annotation["annotations"], (list, tuple))
and (
# an image can have no annotations
len(annotation["annotations"]) == 0 or isinstance(annotation["annotations"][0], dict)
)
):
return True
return False
def is_valid_annotation_coco_panoptic(annotation: Dict[str, Union[List, Tuple]]) -> bool:
if (
isinstance(annotation, dict)
and "image_id" in annotation
and "segments_info" in annotation
and "file_name" in annotation
and isinstance(annotation["segments_info"], (list, tuple))
and (
# an image can have no segments
len(annotation["segments_info"]) == 0 or isinstance(annotation["segments_info"][0], dict)
)
):
return True
return False
def valid_coco_detection_annotations(annotations: Iterable[Dict[str, Union[List, Tuple]]]) -> bool:
return all(is_valid_annotation_coco_detection(ann) for ann in annotations)
def valid_coco_panoptic_annotations(annotations: Iterable[Dict[str, Union[List, Tuple]]]) -> bool:
return all(is_valid_annotation_coco_panoptic(ann) for ann in annotations)
def load_image(image: Union[str, "PIL.Image.Image"], timeout: Optional[float] = None) -> "PIL.Image.Image":
"""
Loads `image` to a PIL Image.
Args:
image (`str` or `PIL.Image.Image`):
The image to convert to the PIL Image format.
timeout (`float`, *optional*):
The timeout value in seconds for the URL request.
Returns:
`PIL.Image.Image`: A PIL Image.
"""
requires_backends(load_image, ["vision"])
if isinstance(image, str):
if image.startswith("http://") or image.startswith("https://"):
# We need to actually check for a real protocol, otherwise it's impossible to use a local file
# like http_huggingface_co.png
image = PIL.Image.open(BytesIO(requests.get(image, timeout=timeout).content))
elif os.path.isfile(image):
image = PIL.Image.open(image)
else:
if image.startswith("data:image/"):
image = image.split(",")[1]
# Try to load as base64
try:
b64 = base64.decodebytes(image.encode())
image = PIL.Image.open(BytesIO(b64))
except Exception as e:
raise ValueError(
f"Incorrect image source. Must be a valid URL starting with `http://` or `https://`, a valid path to an image file, or a base64 encoded string. Got {image}. Failed with {e}"
)
elif isinstance(image, PIL.Image.Image):
image = image
else:
raise ValueError(
"Incorrect format used for image. Should be an url linking to an image, a base64 string, a local path, or a PIL image."
)
image = PIL.ImageOps.exif_transpose(image)
image = image.convert("RGB")
return image
def validate_preprocess_arguments(
do_rescale: Optional[bool] = None,
rescale_factor: Optional[float] = None,
do_normalize: Optional[bool] = None,
image_mean: Optional[Union[float, List[float]]] = None,
image_std: Optional[Union[float, List[float]]] = None,
do_pad: Optional[bool] = None,
size_divisibility: Optional[int] = None,
do_center_crop: Optional[bool] = None,
crop_size: Optional[Dict[str, int]] = None,
do_resize: Optional[bool] = None,
size: Optional[Dict[str, int]] = None,
resample: Optional["PILImageResampling"] = None,
):
"""
Checks validity of typically used arguments in an `ImageProcessor` `preprocess` method.
Raises `ValueError` if arguments incompatibility is caught.
Many incompatibilities are model-specific. `do_pad` sometimes needs `size_divisor`,
sometimes `size_divisibility`, and sometimes `size`. New models and processors added should follow
existing arguments when possible.
"""
if do_rescale and rescale_factor is None:
raise ValueError("rescale_factor must be specified if do_rescale is True.")
if do_pad and size_divisibility is None:
# Here, size_divisor might be passed as the value of size
raise ValueError(
"Depending on moel, size_divisibility, size_divisor, pad_size or size must be specified if do_pad is True."
)
if do_normalize and (image_mean is None or image_std is None):
raise ValueError("image_mean and image_std must both be specified if do_normalize is True.")
if do_center_crop and crop_size is None:
raise ValueError("crop_size must be specified if do_center_crop is True.")
if do_resize and (size is None or resample is None):
raise ValueError("size and resample must be specified if do_resize is True.")
# In the future we can add a TF implementation here when we have TF models.
class ImageFeatureExtractionMixin:
"""
Mixin that contain utilities for preparing image features.
"""
def _ensure_format_supported(self, image):
if not isinstance(image, (PIL.Image.Image, np.ndarray)) and not is_torch_tensor(image):
raise ValueError(
f"Got type {type(image)} which is not supported, only `PIL.Image.Image`, `np.array` and "
"`torch.Tensor` are."
)
def to_pil_image(self, image, rescale=None):
"""
Converts `image` to a PIL Image. Optionally rescales it and puts the channel dimension back as the last axis if
needed.
Args:
image (`PIL.Image.Image` or `numpy.ndarray` or `torch.Tensor`):
The image to convert to the PIL Image format.
rescale (`bool`, *optional*):
Whether or not to apply the scaling factor (to make pixel values integers between 0 and 255). Will
default to `True` if the image type is a floating type, `False` otherwise.
"""
self._ensure_format_supported(image)
if is_torch_tensor(image):
image = image.numpy()
if isinstance(image, np.ndarray):
if rescale is None:
# rescale default to the array being of floating type.
rescale = isinstance(image.flat[0], np.floating)
# If the channel as been moved to first dim, we put it back at the end.
if image.ndim == 3 and image.shape[0] in [1, 3]:
image = image.transpose(1, 2, 0)
if rescale:
image = image * 255
image = image.astype(np.uint8)
return PIL.Image.fromarray(image)
return image
def convert_rgb(self, image):
"""
Converts `PIL.Image.Image` to RGB format.
Args:
image (`PIL.Image.Image`):
The image to convert.
"""
self._ensure_format_supported(image)
if not isinstance(image, PIL.Image.Image):
return image
return image.convert("RGB")
def rescale(self, image: np.ndarray, scale: Union[float, int]) -> np.ndarray:
"""
Rescale a numpy image by scale amount
"""
self._ensure_format_supported(image)
return image * scale
def to_numpy_array(self, image, rescale=None, channel_first=True):
"""
Converts `image` to a numpy array. Optionally rescales it and puts the channel dimension as the first
dimension.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image to convert to a NumPy array.
rescale (`bool`, *optional*):
Whether or not to apply the scaling factor (to make pixel values floats between 0. and 1.). Will
default to `True` if the image is a PIL Image or an array/tensor of integers, `False` otherwise.
channel_first (`bool`, *optional*, defaults to `True`):
Whether or not to permute the dimensions of the image to put the channel dimension first.
"""
self._ensure_format_supported(image)
if isinstance(image, PIL.Image.Image):
image = np.array(image)
if is_torch_tensor(image):
image = image.numpy()
rescale = isinstance(image.flat[0], np.integer) if rescale is None else rescale
if rescale:
image = self.rescale(image.astype(np.float32), 1 / 255.0)
if channel_first and image.ndim == 3:
image = image.transpose(2, 0, 1)
return image
def expand_dims(self, image):
"""
Expands 2-dimensional `image` to 3 dimensions.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image to expand.
"""
self._ensure_format_supported(image)
# Do nothing if PIL image
if isinstance(image, PIL.Image.Image):
return image
if is_torch_tensor(image):
image = image.unsqueeze(0)
else:
image = np.expand_dims(image, axis=0)
return image
def normalize(self, image, mean, std, rescale=False):
"""
Normalizes `image` with `mean` and `std`. Note that this will trigger a conversion of `image` to a NumPy array
if it's a PIL Image.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image to normalize.
mean (`List[float]` or `np.ndarray` or `torch.Tensor`):
The mean (per channel) to use for normalization.
std (`List[float]` or `np.ndarray` or `torch.Tensor`):
The standard deviation (per channel) to use for normalization.
rescale (`bool`, *optional*, defaults to `False`):
Whether or not to rescale the image to be between 0 and 1. If a PIL image is provided, scaling will
happen automatically.
"""
self._ensure_format_supported(image)
if isinstance(image, PIL.Image.Image):
image = self.to_numpy_array(image, rescale=True)
# If the input image is a PIL image, it automatically gets rescaled. If it's another
# type it may need rescaling.
elif rescale:
if isinstance(image, np.ndarray):
image = self.rescale(image.astype(np.float32), 1 / 255.0)
elif is_torch_tensor(image):
image = self.rescale(image.float(), 1 / 255.0)
if isinstance(image, np.ndarray):
if not isinstance(mean, np.ndarray):
mean = np.array(mean).astype(image.dtype)
if not isinstance(std, np.ndarray):
std = np.array(std).astype(image.dtype)
elif is_torch_tensor(image):
import torch
if not isinstance(mean, torch.Tensor):
mean = torch.tensor(mean)
if not isinstance(std, torch.Tensor):
std = torch.tensor(std)
if image.ndim == 3 and image.shape[0] in [1, 3]:
return (image - mean[:, None, None]) / std[:, None, None]
else:
return (image - mean) / std
def resize(self, image, size, resample=None, default_to_square=True, max_size=None):
"""
Resizes `image`. Enforces conversion of input to PIL.Image.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image to resize.
size (`int` or `Tuple[int, int]`):
The size to use for resizing the image. If `size` is a sequence like (h, w), output size will be
matched to this.
If `size` is an int and `default_to_square` is `True`, then image will be resized to (size, size). If
`size` is an int and `default_to_square` is `False`, then smaller edge of the image will be matched to
this number. i.e, if height > width, then image will be rescaled to (size * height / width, size).
resample (`int`, *optional*, defaults to `PILImageResampling.BILINEAR`):
The filter to user for resampling.
default_to_square (`bool`, *optional*, defaults to `True`):
How to convert `size` when it is a single int. If set to `True`, the `size` will be converted to a
square (`size`,`size`). If set to `False`, will replicate
[`torchvision.transforms.Resize`](https://pytorch.org/vision/stable/transforms.html#torchvision.transforms.Resize)
with support for resizing only the smallest edge and providing an optional `max_size`.
max_size (`int`, *optional*, defaults to `None`):
The maximum allowed for the longer edge of the resized image: if the longer edge of the image is
greater than `max_size` after being resized according to `size`, then the image is resized again so
that the longer edge is equal to `max_size`. As a result, `size` might be overruled, i.e the smaller
edge may be shorter than `size`. Only used if `default_to_square` is `False`.
Returns:
image: A resized `PIL.Image.Image`.
"""
resample = resample if resample is not None else PILImageResampling.BILINEAR
self._ensure_format_supported(image)
if not isinstance(image, PIL.Image.Image):
image = self.to_pil_image(image)
if isinstance(size, list):
size = tuple(size)
if isinstance(size, int) or len(size) == 1:
if default_to_square:
size = (size, size) if isinstance(size, int) else (size[0], size[0])
else:
width, height = image.size
# specified size only for the smallest edge
short, long = (width, height) if width <= height else (height, width)
requested_new_short = size if isinstance(size, int) else size[0]
if short == requested_new_short:
return image
new_short, new_long = requested_new_short, int(requested_new_short * long / short)
if max_size is not None:
if max_size <= requested_new_short:
raise ValueError(
f"max_size = {max_size} must be strictly greater than the requested "
f"size for the smaller edge size = {size}"
)
if new_long > max_size:
new_short, new_long = int(max_size * new_short / new_long), max_size
size = (new_short, new_long) if width <= height else (new_long, new_short)
return image.resize(size, resample=resample)
def center_crop(self, image, size):
"""
Crops `image` to the given size using a center crop. Note that if the image is too small to be cropped to the
size given, it will be padded (so the returned result has the size asked).
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor` of shape (n_channels, height, width) or (height, width, n_channels)):
The image to resize.
size (`int` or `Tuple[int, int]`):
The size to which crop the image.
Returns:
new_image: A center cropped `PIL.Image.Image` or `np.ndarray` or `torch.Tensor` of shape: (n_channels,
height, width).
"""
self._ensure_format_supported(image)
if not isinstance(size, tuple):
size = (size, size)
# PIL Image.size is (width, height) but NumPy array and torch Tensors have (height, width)
if is_torch_tensor(image) or isinstance(image, np.ndarray):
if image.ndim == 2:
image = self.expand_dims(image)
image_shape = image.shape[1:] if image.shape[0] in [1, 3] else image.shape[:2]
else:
image_shape = (image.size[1], image.size[0])
top = (image_shape[0] - size[0]) // 2
bottom = top + size[0] # In case size is odd, (image_shape[0] + size[0]) // 2 won't give the proper result.
left = (image_shape[1] - size[1]) // 2
right = left + size[1] # In case size is odd, (image_shape[1] + size[1]) // 2 won't give the proper result.
# For PIL Images we have a method to crop directly.
if isinstance(image, PIL.Image.Image):
return image.crop((left, top, right, bottom))
# Check if image is in (n_channels, height, width) or (height, width, n_channels) format
channel_first = True if image.shape[0] in [1, 3] else False
# Transpose (height, width, n_channels) format images
if not channel_first:
if isinstance(image, np.ndarray):
image = image.transpose(2, 0, 1)
if is_torch_tensor(image):
image = image.permute(2, 0, 1)
# Check if cropped area is within image boundaries
if top >= 0 and bottom <= image_shape[0] and left >= 0 and right <= image_shape[1]:
return image[..., top:bottom, left:right]
# Otherwise, we may need to pad if the image is too small. Oh joy...
new_shape = image.shape[:-2] + (max(size[0], image_shape[0]), max(size[1], image_shape[1]))
if isinstance(image, np.ndarray):
new_image = np.zeros_like(image, shape=new_shape)
elif is_torch_tensor(image):
new_image = image.new_zeros(new_shape)
top_pad = (new_shape[-2] - image_shape[0]) // 2
bottom_pad = top_pad + image_shape[0]
left_pad = (new_shape[-1] - image_shape[1]) // 2
right_pad = left_pad + image_shape[1]
new_image[..., top_pad:bottom_pad, left_pad:right_pad] = image
top += top_pad
bottom += top_pad
left += left_pad
right += left_pad
new_image = new_image[
..., max(0, top) : min(new_image.shape[-2], bottom), max(0, left) : min(new_image.shape[-1], right)
]
return new_image
def flip_channel_order(self, image):
"""
Flips the channel order of `image` from RGB to BGR, or vice versa. Note that this will trigger a conversion of
`image` to a NumPy array if it's a PIL Image.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image whose color channels to flip. If `np.ndarray` or `torch.Tensor`, the channel dimension should
be first.
"""
self._ensure_format_supported(image)
if isinstance(image, PIL.Image.Image):
image = self.to_numpy_array(image)
return image[::-1, :, :]
def rotate(self, image, angle, resample=None, expand=0, center=None, translate=None, fillcolor=None):
"""
Returns a rotated copy of `image`. This method returns a copy of `image`, rotated the given number of degrees
counter clockwise around its centre.
Args:
image (`PIL.Image.Image` or `np.ndarray` or `torch.Tensor`):
The image to rotate. If `np.ndarray` or `torch.Tensor`, will be converted to `PIL.Image.Image` before
rotating.
Returns:
image: A rotated `PIL.Image.Image`.
"""
resample = resample if resample is not None else PIL.Image.NEAREST
self._ensure_format_supported(image)
if not isinstance(image, PIL.Image.Image):
image = self.to_pil_image(image)
return image.rotate(
angle, resample=resample, expand=expand, center=center, translate=translate, fillcolor=fillcolor
)
def promote_annotation_format(annotation_format: Union[AnnotionFormat, AnnotationFormat]) -> AnnotationFormat:
# can be removed when `AnnotionFormat` is fully deprecated
return AnnotationFormat(annotation_format.value)
def validate_annotations(
annotation_format: AnnotationFormat,
supported_annotation_formats: Tuple[AnnotationFormat, ...],
annotations: List[Dict],
) -> None:
if isinstance(annotation_format, AnnotionFormat):
logger.warning_once(
f"`{annotation_format.__class__.__name__}` is deprecated and will be removed in v4.38. "
f"Please use `{AnnotationFormat.__name__}` instead."
)
annotation_format = promote_annotation_format(annotation_format)
if annotation_format not in supported_annotation_formats:
raise ValueError(f"Unsupported annotation format: {format} must be one of {supported_annotation_formats}")
if annotation_format is AnnotationFormat.COCO_DETECTION:
if not valid_coco_detection_annotations(annotations):
raise ValueError(
"Invalid COCO detection annotations. Annotations must a dict (single image) or list of dicts "
"(batch of images) with the following keys: `image_id` and `annotations`, with the latter "
"being a list of annotations in the COCO format."
)
if annotation_format is AnnotationFormat.COCO_PANOPTIC:
if not valid_coco_panoptic_annotations(annotations):
raise ValueError(
"Invalid COCO panoptic annotations. Annotations must a dict (single image) or list of dicts "
"(batch of images) with the following keys: `image_id`, `file_name` and `segments_info`, with "
"the latter being a list of annotations in the COCO format."
)
def validate_kwargs(valid_processor_keys: List[str], captured_kwargs: List[str]):
unused_keys = set(captured_kwargs).difference(set(valid_processor_keys))
if unused_keys:
unused_key_str = ", ".join(unused_keys)
# TODO raise a warning here instead of simply logging?
logger.warning(f"Unused or unrecognized kwargs: {unused_key_str}.")
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/activations.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import math
from collections import OrderedDict
import torch
from packaging import version
from torch import Tensor, nn
from .utils import logging
logger = logging.get_logger(__name__)
class PytorchGELUTanh(nn.Module):
"""
A fast C implementation of the tanh approximation of the GeLU activation function. See
https://arxiv.org/abs/1606.08415.
This implementation is equivalent to NewGELU and FastGELU but much faster. However, it is not an exact numerical
match due to rounding errors.
"""
def __init__(self):
super().__init__()
if version.parse(torch.__version__) < version.parse("1.12.0"):
raise ImportError(
f"You are using torch=={torch.__version__}, but torch>=1.12.0 is required to use "
"PytorchGELUTanh. Please upgrade torch."
)
def forward(self, input: Tensor) -> Tensor:
return nn.functional.gelu(input, approximate="tanh")
class NewGELUActivation(nn.Module):
"""
Implementation of the GELU activation function currently in Google BERT repo (identical to OpenAI GPT). Also see
the Gaussian Error Linear Units paper: https://arxiv.org/abs/1606.08415
"""
def forward(self, input: Tensor) -> Tensor:
return 0.5 * input * (1.0 + torch.tanh(math.sqrt(2.0 / math.pi) * (input + 0.044715 * torch.pow(input, 3.0))))
class GELUActivation(nn.Module):
"""
Original Implementation of the GELU activation function in Google BERT repo when initially created. For
information: OpenAI GPT's GELU is slightly different (and gives slightly different results): 0.5 * x * (1 +
torch.tanh(math.sqrt(2 / math.pi) * (x + 0.044715 * torch.pow(x, 3)))) This is now written in C in nn.functional
Also see the Gaussian Error Linear Units paper: https://arxiv.org/abs/1606.08415
"""
def __init__(self, use_gelu_python: bool = False):
super().__init__()
if use_gelu_python:
self.act = self._gelu_python
else:
self.act = nn.functional.gelu
def _gelu_python(self, input: Tensor) -> Tensor:
return input * 0.5 * (1.0 + torch.erf(input / math.sqrt(2.0)))
def forward(self, input: Tensor) -> Tensor:
return self.act(input)
class FastGELUActivation(nn.Module):
"""
Applies GELU approximation that is slower than QuickGELU but more accurate. See: https://github.com/hendrycks/GELUs
"""
def forward(self, input: Tensor) -> Tensor:
return 0.5 * input * (1.0 + torch.tanh(input * 0.7978845608 * (1.0 + 0.044715 * input * input)))
class QuickGELUActivation(nn.Module):
"""
Applies GELU approximation that is fast but somewhat inaccurate. See: https://github.com/hendrycks/GELUs
"""
def forward(self, input: Tensor) -> Tensor:
return input * torch.sigmoid(1.702 * input)
class ClippedGELUActivation(nn.Module):
"""
Clip the range of possible GeLU outputs between [min, max]. This is especially useful for quantization purpose, as
it allows mapping negatives values in the GeLU spectrum. For more information on this trick, please refer to
https://arxiv.org/abs/2004.09602.
Gaussian Error Linear Unit. Original Implementation of the gelu activation function in Google Bert repo when
initially created.
For information: OpenAI GPT's gelu is slightly different (and gives slightly different results): 0.5 * x * (1 +
torch.tanh(math.sqrt(2 / math.pi) * (x + 0.044715 * torch.pow(x, 3)))). See https://arxiv.org/abs/1606.08415
"""
def __init__(self, min: float, max: float):
if min > max:
raise ValueError(f"min should be < max (got min: {min}, max: {max})")
super().__init__()
self.min = min
self.max = max
def forward(self, x: Tensor) -> Tensor:
return torch.clip(gelu(x), self.min, self.max)
class AccurateGELUActivation(nn.Module):
"""
Applies GELU approximation that is faster than default and more accurate than QuickGELU. See:
https://github.com/hendrycks/GELUs
Implemented along with MEGA (Moving Average Equipped Gated Attention)
"""
def __init__(self):
super().__init__()
self.precomputed_constant = math.sqrt(2 / math.pi)
def forward(self, input: Tensor) -> Tensor:
return 0.5 * input * (1 + torch.tanh(self.precomputed_constant * (input + 0.044715 * torch.pow(input, 3))))
class MishActivation(nn.Module):
"""
See Mish: A Self-Regularized Non-Monotonic Activation Function (Misra., https://arxiv.org/abs/1908.08681). Also
visit the official repository for the paper: https://github.com/digantamisra98/Mish
"""
def __init__(self):
super().__init__()
if version.parse(torch.__version__) < version.parse("1.9.0"):
self.act = self._mish_python
else:
self.act = nn.functional.mish
def _mish_python(self, input: Tensor) -> Tensor:
return input * torch.tanh(nn.functional.softplus(input))
def forward(self, input: Tensor) -> Tensor:
return self.act(input)
class LinearActivation(nn.Module):
"""
Applies the linear activation function, i.e. forwarding input directly to output.
"""
def forward(self, input: Tensor) -> Tensor:
return input
class LaplaceActivation(nn.Module):
"""
Applies elementwise activation based on Laplace function, introduced in MEGA as an attention activation. See
https://arxiv.org/abs/2209.10655
Inspired by squared relu, but with bounded range and gradient for better stability
"""
def forward(self, input, mu=0.707107, sigma=0.282095):
input = (input - mu).div(sigma * math.sqrt(2.0))
return 0.5 * (1.0 + torch.erf(input))
class ReLUSquaredActivation(nn.Module):
"""
Applies the relu^2 activation introduced in https://arxiv.org/abs/2109.08668v2
"""
def forward(self, input):
relu_applied = nn.functional.relu(input)
squared = torch.square(relu_applied)
return squared
class ClassInstantier(OrderedDict):
def __getitem__(self, key):
content = super().__getitem__(key)
cls, kwargs = content if isinstance(content, tuple) else (content, {})
return cls(**kwargs)
ACT2CLS = {
"gelu": GELUActivation,
"gelu_10": (ClippedGELUActivation, {"min": -10, "max": 10}),
"gelu_fast": FastGELUActivation,
"gelu_new": NewGELUActivation,
"gelu_python": (GELUActivation, {"use_gelu_python": True}),
"gelu_pytorch_tanh": PytorchGELUTanh,
"gelu_accurate": AccurateGELUActivation,
"laplace": LaplaceActivation,
"leaky_relu": nn.LeakyReLU,
"linear": LinearActivation,
"mish": MishActivation,
"quick_gelu": QuickGELUActivation,
"relu": nn.ReLU,
"relu2": ReLUSquaredActivation,
"relu6": nn.ReLU6,
"sigmoid": nn.Sigmoid,
"silu": nn.SiLU,
"swish": nn.SiLU,
"tanh": nn.Tanh,
}
ACT2FN = ClassInstantier(ACT2CLS)
def get_activation(activation_string):
if activation_string in ACT2FN:
return ACT2FN[activation_string]
else:
raise KeyError(f"function {activation_string} not found in ACT2FN mapping {list(ACT2FN.keys())}")
# For backwards compatibility with: from activations import gelu_python
gelu_python = get_activation("gelu_python")
gelu_new = get_activation("gelu_new")
gelu = get_activation("gelu")
gelu_fast = get_activation("gelu_fast")
quick_gelu = get_activation("quick_gelu")
silu = get_activation("silu")
mish = get_activation("mish")
linear_act = get_activation("linear")
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modeling_tf_pytorch_utils.py | # coding=utf-8
# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" PyTorch - TF 2.0 general utilities."""
import os
import re
import numpy
from .utils import (
ExplicitEnum,
expand_dims,
is_numpy_array,
is_safetensors_available,
is_torch_tensor,
logging,
reshape,
squeeze,
tensor_size,
)
from .utils import transpose as transpose_func
if is_safetensors_available():
from safetensors import safe_open
logger = logging.get_logger(__name__)
class TransposeType(ExplicitEnum):
"""
Possible ...
"""
NO = "no"
SIMPLE = "simple"
CONV1D = "conv1d"
CONV2D = "conv2d"
def convert_tf_weight_name_to_pt_weight_name(
tf_name, start_prefix_to_remove="", tf_weight_shape=None, name_scope=None
):
"""
Convert a TF 2.0 model variable name in a pytorch model weight name.
Conventions for TF2.0 scopes -> PyTorch attribute names conversions:
- '$1___$2' is replaced by $2 (can be used to duplicate or remove layers in TF2.0 vs PyTorch)
- '_._' is replaced by a new level separation (can be used to convert TF2.0 lists in PyTorch nn.ModulesList)
return tuple with:
- pytorch model weight name
- transpose: `TransposeType` member indicating whether and how TF2.0 and PyTorch weights matrices should be
transposed with regards to each other
"""
if name_scope is not None:
if not tf_name.startswith(name_scope) and "final_logits_bias" not in tf_name:
raise ValueError(
f"Weight name {tf_name} does not start with name_scope {name_scope}. This is an internal error "
"in Transformers, so (unless you were doing something really evil) please open an issue to report it!"
)
tf_name = tf_name[len(name_scope) :]
tf_name = tf_name.lstrip("/")
tf_name = tf_name.replace(":0", "") # device ids
tf_name = re.sub(
r"/[^/]*___([^/]*)/", r"/\1/", tf_name
) # '$1___$2' is replaced by $2 (can be used to duplicate or remove layers in TF2.0 vs PyTorch)
tf_name = tf_name.replace(
"_._", "/"
) # '_._' is replaced by a level separation (can be used to convert TF2.0 lists in PyTorch nn.ModulesList)
tf_name = re.sub(r"//+", "/", tf_name) # Remove empty levels at the end
tf_name = tf_name.split("/") # Convert from TF2.0 '/' separators to PyTorch '.' separators
# Some weights have a single name without "/" such as final_logits_bias in BART
if len(tf_name) > 1:
tf_name = tf_name[1:] # Remove level zero
tf_weight_shape = list(tf_weight_shape)
# When should we transpose the weights
if tf_name[-1] == "kernel" and tf_weight_shape is not None and len(tf_weight_shape) == 4:
transpose = TransposeType.CONV2D
elif tf_name[-1] == "kernel" and tf_weight_shape is not None and len(tf_weight_shape) == 3:
transpose = TransposeType.CONV1D
elif bool(
tf_name[-1] in ["kernel", "pointwise_kernel", "depthwise_kernel"]
or "emb_projs" in tf_name
or "out_projs" in tf_name
):
transpose = TransposeType.SIMPLE
else:
transpose = TransposeType.NO
# Convert standard TF2.0 names in PyTorch names
if tf_name[-1] == "kernel" or tf_name[-1] == "embeddings" or tf_name[-1] == "gamma":
tf_name[-1] = "weight"
if tf_name[-1] == "beta":
tf_name[-1] = "bias"
# The SeparableConv1D TF layer contains two weights that are translated to PyTorch Conv1D here
if tf_name[-1] == "pointwise_kernel" or tf_name[-1] == "depthwise_kernel":
tf_name[-1] = tf_name[-1].replace("_kernel", ".weight")
# Remove prefix if needed
tf_name = ".".join(tf_name)
if start_prefix_to_remove:
tf_name = tf_name.replace(start_prefix_to_remove, "", 1)
return tf_name, transpose
def apply_transpose(transpose: TransposeType, weight, match_shape=None, pt_to_tf=True):
"""
Apply a transpose to some weight then tries to reshape the weight to the same shape as a given shape, all in a
framework agnostic way.
"""
if transpose is TransposeType.CONV2D:
# Conv2D weight:
# PT: (num_out_channel, num_in_channel, kernel[0], kernel[1])
# -> TF: (kernel[0], kernel[1], num_in_channel, num_out_channel)
axes = (2, 3, 1, 0) if pt_to_tf else (3, 2, 0, 1)
weight = transpose_func(weight, axes=axes)
elif transpose is TransposeType.CONV1D:
# Conv1D weight:
# PT: (num_out_channel, num_in_channel, kernel)
# -> TF: (kernel, num_in_channel, num_out_channel)
weight = transpose_func(weight, axes=(2, 1, 0))
elif transpose is TransposeType.SIMPLE:
weight = transpose_func(weight)
if match_shape is None:
return weight
if len(match_shape) < len(weight.shape):
weight = squeeze(weight)
elif len(match_shape) > len(weight.shape):
weight = expand_dims(weight, axis=0)
if list(match_shape) != list(weight.shape):
try:
weight = reshape(weight, match_shape)
except AssertionError as e:
e.args += (match_shape, match_shape)
raise e
return weight
#####################
# PyTorch => TF 2.0 #
#####################
def load_pytorch_checkpoint_in_tf2_model(
tf_model,
pytorch_checkpoint_path,
tf_inputs=None,
allow_missing_keys=False,
output_loading_info=False,
_prefix=None,
tf_to_pt_weight_rename=None,
):
"""Load pytorch checkpoints in a TF 2.0 model"""
try:
import tensorflow as tf # noqa: F401
import torch # noqa: F401
from safetensors.torch import load_file as safe_load_file # noqa: F401
from .pytorch_utils import is_torch_greater_or_equal_than_1_13 # noqa: F401
except ImportError:
logger.error(
"Loading a PyTorch model in TensorFlow, requires both PyTorch and TensorFlow to be installed. Please see "
"https://pytorch.org/ and https://www.tensorflow.org/install/ for installation instructions."
)
raise
# Treats a single file as a collection of shards with 1 shard.
if isinstance(pytorch_checkpoint_path, str):
pytorch_checkpoint_path = [pytorch_checkpoint_path]
# Loads all shards into a single state dictionary
pt_state_dict = {}
for path in pytorch_checkpoint_path:
pt_path = os.path.abspath(path)
logger.info(f"Loading PyTorch weights from {pt_path}")
if pt_path.endswith(".safetensors"):
state_dict = safe_load_file(pt_path)
else:
weights_only_kwarg = {"weights_only": True} if is_torch_greater_or_equal_than_1_13 else {}
state_dict = torch.load(pt_path, map_location="cpu", **weights_only_kwarg)
pt_state_dict.update(state_dict)
logger.info(f"PyTorch checkpoint contains {sum(t.numel() for t in pt_state_dict.values()):,} parameters")
return load_pytorch_weights_in_tf2_model(
tf_model,
pt_state_dict,
tf_inputs=tf_inputs,
allow_missing_keys=allow_missing_keys,
output_loading_info=output_loading_info,
_prefix=_prefix,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
)
def load_pytorch_model_in_tf2_model(tf_model, pt_model, tf_inputs=None, allow_missing_keys=False):
"""Load pytorch checkpoints in a TF 2.0 model"""
pt_state_dict = pt_model.state_dict()
return load_pytorch_weights_in_tf2_model(
tf_model, pt_state_dict, tf_inputs=tf_inputs, allow_missing_keys=allow_missing_keys
)
def load_pytorch_weights_in_tf2_model(
tf_model,
pt_state_dict,
tf_inputs=None,
allow_missing_keys=False,
output_loading_info=False,
_prefix=None,
tf_to_pt_weight_rename=None,
):
"""Load pytorch state_dict in a TF 2.0 model."""
try:
import tensorflow as tf # noqa: F401
import torch # noqa: F401
except ImportError:
logger.error(
"Loading a PyTorch model in TensorFlow, requires both PyTorch and TensorFlow to be installed. Please see "
"https://pytorch.org/ and https://www.tensorflow.org/install/ for installation instructions."
)
raise
# Numpy doesn't understand bfloat16, so upcast to a dtype that doesn't lose precision
pt_state_dict = {
k: v.numpy() if v.dtype != torch.bfloat16 else v.float().numpy() for k, v in pt_state_dict.items()
}
return load_pytorch_state_dict_in_tf2_model(
tf_model,
pt_state_dict,
tf_inputs=tf_inputs,
allow_missing_keys=allow_missing_keys,
output_loading_info=output_loading_info,
_prefix=_prefix,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
)
def _log_key_warnings(missing_keys, unexpected_keys, mismatched_keys, class_name):
if len(unexpected_keys) > 0:
logger.warning(
"Some weights of the PyTorch model were not used when initializing the TF 2.0 model"
f" {class_name}: {unexpected_keys}\n- This IS expected if you are initializing"
f" {class_name} from a PyTorch model trained on another task or with another architecture"
" (e.g. initializing a TFBertForSequenceClassification model from a BertForPreTraining model).\n- This IS"
f" NOT expected if you are initializing {class_name} from a PyTorch model that you expect"
" to be exactly identical (e.g. initializing a TFBertForSequenceClassification model from a"
" BertForSequenceClassification model)."
)
else:
logger.warning(f"All PyTorch model weights were used when initializing {class_name}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some weights or buffers of the TF 2.0 model {class_name} were not initialized from the"
f" PyTorch model and are newly initialized: {missing_keys}\nYou should probably TRAIN this model on a"
" down-stream task to be able to use it for predictions and inference."
)
else:
logger.warning(
f"All the weights of {class_name} were initialized from the PyTorch model.\n"
"If your task is similar to the task the model of the checkpoint was trained on, "
f"you can already use {class_name} for predictions without further training."
)
if len(mismatched_keys) > 0:
mismatched_warning = "\n".join(
[
f"- {key}: found shape {shape1} in the checkpoint and {shape2} in the model instantiated"
for key, shape1, shape2 in mismatched_keys
]
)
logger.warning(
f"Some weights of {class_name} were not initialized from the model checkpoint"
f" are newly initialized because the shapes did not"
f" match:\n{mismatched_warning}\nYou should probably TRAIN this model on a down-stream task to be able"
" to use it for predictions and inference."
)
def load_pytorch_state_dict_in_tf2_model(
tf_model,
pt_state_dict,
tf_inputs=None,
allow_missing_keys=False,
output_loading_info=False,
_prefix=None,
tf_to_pt_weight_rename=None,
ignore_mismatched_sizes=False,
skip_logger_warnings=False,
):
"""Load a pytorch state_dict in a TF 2.0 model. pt_state_dict can be either an actual dict or a lazy-loading
safetensors archive created with the safe_open() function."""
import tensorflow as tf
if tf_inputs is None:
tf_inputs = tf_model.dummy_inputs
if _prefix is None:
_prefix = ""
if tf_inputs:
with tf.name_scope(_prefix):
tf_model(tf_inputs, training=False) # Make sure model is built
# Convert old format to new format if needed from a PyTorch state_dict
tf_keys_to_pt_keys = {}
for key in pt_state_dict.keys():
new_key = None
if "gamma" in key:
new_key = key.replace("gamma", "weight")
if "beta" in key:
new_key = key.replace("beta", "bias")
if "running_var" in key:
new_key = key.replace("running_var", "moving_variance")
if "running_mean" in key:
new_key = key.replace("running_mean", "moving_mean")
# New `weight_norm` from https://github.com/huggingface/transformers/pull/24030
key_components = key.split(".")
name = None
if key_components[-3::2] == ["parametrizations", "original0"]:
name = key_components[-2] + "_g"
elif key_components[-3::2] == ["parametrizations", "original1"]:
name = key_components[-2] + "_v"
if name is not None:
key_components = key_components[:-3] + [name]
new_key = ".".join(key_components)
if new_key is None:
new_key = key
tf_keys_to_pt_keys[new_key] = key
# Matt: All TF models store the actual model stem in a MainLayer class, including the base model.
# In PT, the derived models (with heads) use the base model class as the stem instead,
# and there is no MainLayer class. This means that TF base classes have one
# extra layer in their weight names, corresponding to the MainLayer class. This code block compensates for that.
start_prefix_to_remove = ""
if not any(s.startswith(tf_model.base_model_prefix) for s in tf_keys_to_pt_keys.keys()):
start_prefix_to_remove = tf_model.base_model_prefix + "."
symbolic_weights = tf_model.trainable_weights + tf_model.non_trainable_weights
tf_loaded_numel = 0
all_pytorch_weights = set(tf_keys_to_pt_keys.keys())
missing_keys = []
mismatched_keys = []
is_safetensor_archive = hasattr(pt_state_dict, "get_tensor")
for symbolic_weight in symbolic_weights:
sw_name = symbolic_weight.name
name, transpose = convert_tf_weight_name_to_pt_weight_name(
sw_name,
start_prefix_to_remove=start_prefix_to_remove,
tf_weight_shape=symbolic_weight.shape,
name_scope=_prefix,
)
if tf_to_pt_weight_rename is not None:
aliases = tf_to_pt_weight_rename(name) # Is a tuple to account for possible name aliasing
for alias in aliases: # The aliases are in priority order, take the first one that matches
if alias in tf_keys_to_pt_keys:
name = alias
break
else:
# If none of the aliases match, just use the first one (it'll be reported as missing)
name = aliases[0]
# Find associated numpy array in pytorch model state dict
if name not in tf_keys_to_pt_keys:
if allow_missing_keys:
missing_keys.append(name)
continue
elif tf_model._keys_to_ignore_on_load_missing is not None:
# authorized missing keys don't have to be loaded
if any(re.search(pat, name) is not None for pat in tf_model._keys_to_ignore_on_load_missing):
continue
raise AttributeError(f"{name} not found in PyTorch model")
state_dict_name = tf_keys_to_pt_keys[name]
if is_safetensor_archive:
array = pt_state_dict.get_tensor(state_dict_name)
else:
array = pt_state_dict[state_dict_name]
try:
array = apply_transpose(transpose, array, symbolic_weight.shape)
except tf.errors.InvalidArgumentError as e:
if not ignore_mismatched_sizes:
error_msg = str(e)
error_msg += (
"\n\tYou may consider adding `ignore_mismatched_sizes=True` in the model `from_pretrained` method."
)
raise tf.errors.InvalidArgumentError(error_msg)
else:
mismatched_keys.append((name, array.shape, symbolic_weight.shape))
continue
tf_loaded_numel += tensor_size(array)
symbolic_weight.assign(tf.cast(array, symbolic_weight.dtype))
del array # Immediately free memory to keep peak usage as low as possible
all_pytorch_weights.discard(name)
logger.info(f"Loaded {tf_loaded_numel:,} parameters in the TF 2.0 model.")
unexpected_keys = list(all_pytorch_weights)
if tf_model._keys_to_ignore_on_load_missing is not None:
for pat in tf_model._keys_to_ignore_on_load_missing:
missing_keys = [k for k in missing_keys if re.search(pat, k) is None]
if tf_model._keys_to_ignore_on_load_unexpected is not None:
for pat in tf_model._keys_to_ignore_on_load_unexpected:
unexpected_keys = [k for k in unexpected_keys if re.search(pat, k) is None]
if not skip_logger_warnings:
_log_key_warnings(missing_keys, unexpected_keys, mismatched_keys, class_name=tf_model.__class__.__name__)
if output_loading_info:
loading_info = {
"missing_keys": missing_keys,
"unexpected_keys": unexpected_keys,
"mismatched_keys": mismatched_keys,
}
return tf_model, loading_info
return tf_model
def load_sharded_pytorch_safetensors_in_tf2_model(
tf_model,
safetensors_shards,
tf_inputs=None,
allow_missing_keys=False,
output_loading_info=False,
_prefix=None,
tf_to_pt_weight_rename=None,
ignore_mismatched_sizes=False,
):
all_loading_infos = []
for shard in safetensors_shards:
with safe_open(shard, framework="tf") as safetensors_archive:
tf_model, loading_info = load_pytorch_state_dict_in_tf2_model(
tf_model,
safetensors_archive,
tf_inputs=tf_inputs,
allow_missing_keys=allow_missing_keys,
output_loading_info=True,
_prefix=_prefix,
tf_to_pt_weight_rename=tf_to_pt_weight_rename,
ignore_mismatched_sizes=ignore_mismatched_sizes,
skip_logger_warnings=True, # We will emit merged warnings at the end
)
all_loading_infos.append(loading_info)
# Now we just need to merge the loading info
# Keys are missing only if they're missing in *every* shard
missing_keys = sorted(set.intersection(*[set(info["missing_keys"]) for info in all_loading_infos]))
# Keys are unexpected/mismatched if they're unexpected/mismatched in *any* shard
unexpected_keys = sum([info["unexpected_keys"] for info in all_loading_infos], [])
mismatched_keys = sum([info["mismatched_keys"] for info in all_loading_infos], [])
_log_key_warnings(missing_keys, unexpected_keys, mismatched_keys, class_name=tf_model.__class__.__name__)
if output_loading_info:
loading_info = {
"missing_keys": missing_keys,
"unexpected_keys": unexpected_keys,
"mismatched_keys": mismatched_keys,
}
return tf_model, loading_info
return tf_model
#####################
# TF 2.0 => PyTorch #
#####################
def load_tf2_checkpoint_in_pytorch_model(
pt_model, tf_checkpoint_path, tf_inputs=None, allow_missing_keys=False, output_loading_info=False
):
"""
Load TF 2.0 HDF5 checkpoint in a PyTorch model We use HDF5 to easily do transfer learning (see
https://github.com/tensorflow/tensorflow/blob/ee16fcac960ae660e0e4496658a366e2f745e1f0/tensorflow/python/keras/engine/network.py#L1352-L1357).
"""
try:
import tensorflow as tf # noqa: F401
import torch # noqa: F401
except ImportError:
logger.error(
"Loading a TensorFlow model in PyTorch, requires both PyTorch and TensorFlow to be installed. Please see "
"https://pytorch.org/ and https://www.tensorflow.org/install/ for installation instructions."
)
raise
import transformers
from .modeling_tf_utils import load_tf_weights
logger.info(f"Loading TensorFlow weights from {tf_checkpoint_path}")
# Instantiate and load the associated TF 2.0 model
tf_model_class_name = "TF" + pt_model.__class__.__name__ # Add "TF" at the beginning
tf_model_class = getattr(transformers, tf_model_class_name)
tf_model = tf_model_class(pt_model.config)
if tf_inputs is None:
tf_inputs = tf_model.dummy_inputs
if tf_inputs is not None:
tf_model(tf_inputs, training=False) # Make sure model is built
load_tf_weights(tf_model, tf_checkpoint_path)
return load_tf2_model_in_pytorch_model(
pt_model, tf_model, allow_missing_keys=allow_missing_keys, output_loading_info=output_loading_info
)
def load_tf2_model_in_pytorch_model(pt_model, tf_model, allow_missing_keys=False, output_loading_info=False):
"""Load TF 2.0 model in a pytorch model"""
weights = tf_model.weights
return load_tf2_weights_in_pytorch_model(
pt_model, weights, allow_missing_keys=allow_missing_keys, output_loading_info=output_loading_info
)
def load_tf2_weights_in_pytorch_model(pt_model, tf_weights, allow_missing_keys=False, output_loading_info=False):
"""Load TF2.0 symbolic weights in a PyTorch model"""
try:
import tensorflow as tf # noqa: F401
import torch # noqa: F401
except ImportError:
logger.error(
"Loading a TensorFlow model in PyTorch, requires both PyTorch and TensorFlow to be installed. Please see "
"https://pytorch.org/ and https://www.tensorflow.org/install/ for installation instructions."
)
raise
tf_state_dict = {tf_weight.name: tf_weight.numpy() for tf_weight in tf_weights}
return load_tf2_state_dict_in_pytorch_model(
pt_model, tf_state_dict, allow_missing_keys=allow_missing_keys, output_loading_info=output_loading_info
)
def load_tf2_state_dict_in_pytorch_model(pt_model, tf_state_dict, allow_missing_keys=False, output_loading_info=False):
import torch
new_pt_params_dict = {}
current_pt_params_dict = dict(pt_model.named_parameters())
# Make sure we are able to load PyTorch base models as well as derived models (with heads)
# TF models always have a prefix, some of PyTorch models (base ones) don't
start_prefix_to_remove = ""
if not any(s.startswith(pt_model.base_model_prefix) for s in current_pt_params_dict.keys()):
start_prefix_to_remove = pt_model.base_model_prefix + "."
# Build a map from potential PyTorch weight names to TF 2.0 Variables
tf_weights_map = {}
for name, tf_weight in tf_state_dict.items():
pt_name, transpose = convert_tf_weight_name_to_pt_weight_name(
name, start_prefix_to_remove=start_prefix_to_remove, tf_weight_shape=tf_weight.shape
)
tf_weights_map[pt_name] = (tf_weight, transpose)
all_tf_weights = set(tf_weights_map.keys())
loaded_pt_weights_data_ptr = {}
missing_keys_pt = []
for pt_weight_name, pt_weight in current_pt_params_dict.items():
# Handle PyTorch shared weight ()not duplicated in TF 2.0
if pt_weight.data_ptr() in loaded_pt_weights_data_ptr:
new_pt_params_dict[pt_weight_name] = loaded_pt_weights_data_ptr[pt_weight.data_ptr()]
continue
pt_weight_name_to_check = pt_weight_name
# New `weight_norm` from https://github.com/huggingface/transformers/pull/24030
key_components = pt_weight_name.split(".")
name = None
if key_components[-3::2] == ["parametrizations", "original0"]:
name = key_components[-2] + "_g"
elif key_components[-3::2] == ["parametrizations", "original1"]:
name = key_components[-2] + "_v"
if name is not None:
key_components = key_components[:-3] + [name]
pt_weight_name_to_check = ".".join(key_components)
# Find associated numpy array in pytorch model state dict
if pt_weight_name_to_check not in tf_weights_map:
if allow_missing_keys:
missing_keys_pt.append(pt_weight_name)
continue
raise AttributeError(f"{pt_weight_name} not found in TF 2.0 model")
array, transpose = tf_weights_map[pt_weight_name_to_check]
array = apply_transpose(transpose, array, pt_weight.shape, pt_to_tf=False)
if numpy.isscalar(array):
array = numpy.array(array)
if not is_torch_tensor(array) and not is_numpy_array(array):
array = array.numpy()
if is_numpy_array(array):
# Convert to torch tensor
array = torch.from_numpy(array)
new_pt_params_dict[pt_weight_name] = array
loaded_pt_weights_data_ptr[pt_weight.data_ptr()] = array
all_tf_weights.discard(pt_weight_name)
missing_keys, unexpected_keys = pt_model.load_state_dict(new_pt_params_dict, strict=False)
missing_keys += missing_keys_pt
# Some models may have keys that are not in the state by design, removing them before needlessly warning
# the user.
if pt_model._keys_to_ignore_on_load_missing is not None:
for pat in pt_model._keys_to_ignore_on_load_missing:
missing_keys = [k for k in missing_keys if re.search(pat, k) is None]
if pt_model._keys_to_ignore_on_load_unexpected is not None:
for pat in pt_model._keys_to_ignore_on_load_unexpected:
unexpected_keys = [k for k in unexpected_keys if re.search(pat, k) is None]
if len(unexpected_keys) > 0:
logger.warning(
"Some weights of the TF 2.0 model were not used when initializing the PyTorch model"
f" {pt_model.__class__.__name__}: {unexpected_keys}\n- This IS expected if you are initializing"
f" {pt_model.__class__.__name__} from a TF 2.0 model trained on another task or with another architecture"
" (e.g. initializing a BertForSequenceClassification model from a TFBertForPreTraining model).\n- This IS"
f" NOT expected if you are initializing {pt_model.__class__.__name__} from a TF 2.0 model that you expect"
" to be exactly identical (e.g. initializing a BertForSequenceClassification model from a"
" TFBertForSequenceClassification model)."
)
else:
logger.warning(f"All TF 2.0 model weights were used when initializing {pt_model.__class__.__name__}.\n")
if len(missing_keys) > 0:
logger.warning(
f"Some weights of {pt_model.__class__.__name__} were not initialized from the TF 2.0 model and are newly"
f" initialized: {missing_keys}\nYou should probably TRAIN this model on a down-stream task to be able to"
" use it for predictions and inference."
)
else:
logger.warning(
f"All the weights of {pt_model.__class__.__name__} were initialized from the TF 2.0 model.\n"
"If your task is similar to the task the model of the checkpoint was trained on, "
f"you can already use {pt_model.__class__.__name__} for predictions without further training."
)
logger.info(f"Weights or buffers not loaded from TF 2.0 model: {all_tf_weights}")
if output_loading_info:
loading_info = {"missing_keys": missing_keys, "unexpected_keys": unexpected_keys}
return pt_model, loading_info
return pt_model
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/modelcard.py | # coding=utf-8
# Copyright 2018 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Configuration base class and utilities."""
import copy
import json
import os
import warnings
from dataclasses import dataclass
from pathlib import Path
from typing import Any, Dict, List, Optional, Union
import requests
import yaml
from huggingface_hub import model_info
from huggingface_hub.utils import HFValidationError
from . import __version__
from .models.auto.modeling_auto import (
MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING_NAMES,
MODEL_FOR_CAUSAL_LM_MAPPING_NAMES,
MODEL_FOR_CTC_MAPPING_NAMES,
MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING_NAMES,
MODEL_FOR_IMAGE_SEGMENTATION_MAPPING_NAMES,
MODEL_FOR_MASKED_LM_MAPPING_NAMES,
MODEL_FOR_OBJECT_DETECTION_MAPPING_NAMES,
MODEL_FOR_QUESTION_ANSWERING_MAPPING_NAMES,
MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING_NAMES,
MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING_NAMES,
MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING_NAMES,
MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING_NAMES,
MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING_NAMES,
MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING_NAMES,
)
from .training_args import ParallelMode
from .utils import (
MODEL_CARD_NAME,
cached_file,
is_datasets_available,
is_offline_mode,
is_tf_available,
is_tokenizers_available,
is_torch_available,
logging,
)
TASK_MAPPING = {
"text-generation": MODEL_FOR_CAUSAL_LM_MAPPING_NAMES,
"image-classification": MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING_NAMES,
"image-segmentation": MODEL_FOR_IMAGE_SEGMENTATION_MAPPING_NAMES,
"fill-mask": MODEL_FOR_MASKED_LM_MAPPING_NAMES,
"object-detection": MODEL_FOR_OBJECT_DETECTION_MAPPING_NAMES,
"question-answering": MODEL_FOR_QUESTION_ANSWERING_MAPPING_NAMES,
"text2text-generation": MODEL_FOR_SEQ_TO_SEQ_CAUSAL_LM_MAPPING_NAMES,
"text-classification": MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING_NAMES,
"table-question-answering": MODEL_FOR_TABLE_QUESTION_ANSWERING_MAPPING_NAMES,
"token-classification": MODEL_FOR_TOKEN_CLASSIFICATION_MAPPING_NAMES,
"audio-classification": MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING_NAMES,
"automatic-speech-recognition": {**MODEL_FOR_CTC_MAPPING_NAMES, **MODEL_FOR_SPEECH_SEQ_2_SEQ_MAPPING_NAMES},
"zero-shot-image-classification": MODEL_FOR_ZERO_SHOT_IMAGE_CLASSIFICATION_MAPPING_NAMES,
}
logger = logging.get_logger(__name__)
class ModelCard:
r"""
Structured Model Card class. Store model card as well as methods for loading/downloading/saving model cards.
Please read the following paper for details and explanation on the sections: "Model Cards for Model Reporting" by
Margaret Mitchell, Simone Wu, Andrew Zaldivar, Parker Barnes, Lucy Vasserman, Ben Hutchinson, Elena Spitzer,
Inioluwa Deborah Raji and Timnit Gebru for the proposal behind model cards. Link: https://arxiv.org/abs/1810.03993
Note: A model card can be loaded and saved to disk.
"""
def __init__(self, **kwargs):
warnings.warn(
"The class `ModelCard` is deprecated and will be removed in version 5 of Transformers", FutureWarning
)
# Recommended attributes from https://arxiv.org/abs/1810.03993 (see papers)
self.model_details = kwargs.pop("model_details", {})
self.intended_use = kwargs.pop("intended_use", {})
self.factors = kwargs.pop("factors", {})
self.metrics = kwargs.pop("metrics", {})
self.evaluation_data = kwargs.pop("evaluation_data", {})
self.training_data = kwargs.pop("training_data", {})
self.quantitative_analyses = kwargs.pop("quantitative_analyses", {})
self.ethical_considerations = kwargs.pop("ethical_considerations", {})
self.caveats_and_recommendations = kwargs.pop("caveats_and_recommendations", {})
# Open additional attributes
for key, value in kwargs.items():
try:
setattr(self, key, value)
except AttributeError as err:
logger.error(f"Can't set {key} with value {value} for {self}")
raise err
def save_pretrained(self, save_directory_or_file):
"""Save a model card object to the directory or file `save_directory_or_file`."""
if os.path.isdir(save_directory_or_file):
# If we save using the predefined names, we can load using `from_pretrained`
output_model_card_file = os.path.join(save_directory_or_file, MODEL_CARD_NAME)
else:
output_model_card_file = save_directory_or_file
self.to_json_file(output_model_card_file)
logger.info(f"Model card saved in {output_model_card_file}")
@classmethod
def from_pretrained(cls, pretrained_model_name_or_path, **kwargs):
r"""
Instantiate a [`ModelCard`] from a pre-trained model model card.
Parameters:
pretrained_model_name_or_path: either:
- a string, the *model id* of a pretrained model card hosted inside a model repo on huggingface.co.
- a path to a *directory* containing a model card file saved using the [`~ModelCard.save_pretrained`]
method, e.g.: `./my_model_directory/`.
- a path or url to a saved model card JSON *file*, e.g.: `./my_model_directory/modelcard.json`.
cache_dir: (*optional*) string:
Path to a directory in which a downloaded pre-trained model card should be cached if the standard cache
should not be used.
kwargs: (*optional*) dict: key/value pairs with which to update the ModelCard object after loading.
- The values in kwargs of any keys which are model card attributes will be used to override the loaded
values.
- Behavior concerning key/value pairs whose keys are *not* model card attributes is controlled by the
*return_unused_kwargs* keyword parameter.
proxies: (*optional*) dict, default None:
A dictionary of proxy servers to use by protocol or endpoint, e.g.: {'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}. The proxies are used on each request.
return_unused_kwargs: (*optional*) bool:
- If False, then this function returns just the final model card object.
- If True, then this functions returns a tuple *(model card, unused_kwargs)* where *unused_kwargs* is a
dictionary consisting of the key/value pairs whose keys are not model card attributes: ie the part of
kwargs which has not been used to update *ModelCard* and is otherwise ignored.
Examples:
```python
# Download model card from huggingface.co and cache.
modelcard = ModelCard.from_pretrained("google-bert/bert-base-uncased")
# Model card was saved using *save_pretrained('./test/saved_model/')*
modelcard = ModelCard.from_pretrained("./test/saved_model/")
modelcard = ModelCard.from_pretrained("./test/saved_model/modelcard.json")
modelcard = ModelCard.from_pretrained("google-bert/bert-base-uncased", output_attentions=True, foo=False)
```"""
cache_dir = kwargs.pop("cache_dir", None)
proxies = kwargs.pop("proxies", None)
return_unused_kwargs = kwargs.pop("return_unused_kwargs", False)
from_pipeline = kwargs.pop("_from_pipeline", None)
user_agent = {"file_type": "model_card"}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
is_local = os.path.isdir(pretrained_model_name_or_path)
if os.path.isfile(pretrained_model_name_or_path):
resolved_model_card_file = pretrained_model_name_or_path
is_local = True
else:
try:
# Load from URL or cache if already cached
resolved_model_card_file = cached_file(
pretrained_model_name_or_path,
filename=MODEL_CARD_NAME,
cache_dir=cache_dir,
proxies=proxies,
user_agent=user_agent,
)
if is_local:
logger.info(f"loading model card file {resolved_model_card_file}")
else:
logger.info(f"loading model card file {MODEL_CARD_NAME} from cache at {resolved_model_card_file}")
# Load model card
modelcard = cls.from_json_file(resolved_model_card_file)
except (EnvironmentError, json.JSONDecodeError):
# We fall back on creating an empty model card
modelcard = cls()
# Update model card with kwargs if needed
to_remove = []
for key, value in kwargs.items():
if hasattr(modelcard, key):
setattr(modelcard, key, value)
to_remove.append(key)
for key in to_remove:
kwargs.pop(key, None)
logger.info(f"Model card: {modelcard}")
if return_unused_kwargs:
return modelcard, kwargs
else:
return modelcard
@classmethod
def from_dict(cls, json_object):
"""Constructs a `ModelCard` from a Python dictionary of parameters."""
return cls(**json_object)
@classmethod
def from_json_file(cls, json_file):
"""Constructs a `ModelCard` from a json file of parameters."""
with open(json_file, "r", encoding="utf-8") as reader:
text = reader.read()
dict_obj = json.loads(text)
return cls(**dict_obj)
def __eq__(self, other):
return self.__dict__ == other.__dict__
def __repr__(self):
return str(self.to_json_string())
def to_dict(self):
"""Serializes this instance to a Python dictionary."""
output = copy.deepcopy(self.__dict__)
return output
def to_json_string(self):
"""Serializes this instance to a JSON string."""
return json.dumps(self.to_dict(), indent=2, sort_keys=True) + "\n"
def to_json_file(self, json_file_path):
"""Save this instance to a json file."""
with open(json_file_path, "w", encoding="utf-8") as writer:
writer.write(self.to_json_string())
AUTOGENERATED_TRAINER_COMMENT = """
<!-- This model card has been generated automatically according to the information the Trainer had access to. You
should probably proofread and complete it, then remove this comment. -->
"""
AUTOGENERATED_KERAS_COMMENT = """
<!-- This model card has been generated automatically according to the information Keras had access to. You should
probably proofread and complete it, then remove this comment. -->
"""
TASK_TAG_TO_NAME_MAPPING = {
"fill-mask": "Masked Language Modeling",
"image-classification": "Image Classification",
"image-segmentation": "Image Segmentation",
"multiple-choice": "Multiple Choice",
"object-detection": "Object Detection",
"question-answering": "Question Answering",
"summarization": "Summarization",
"table-question-answering": "Table Question Answering",
"text-classification": "Text Classification",
"text-generation": "Causal Language Modeling",
"text2text-generation": "Sequence-to-sequence Language Modeling",
"token-classification": "Token Classification",
"translation": "Translation",
"zero-shot-classification": "Zero Shot Classification",
"automatic-speech-recognition": "Automatic Speech Recognition",
"audio-classification": "Audio Classification",
}
METRIC_TAGS = [
"accuracy",
"bleu",
"f1",
"matthews_correlation",
"pearsonr",
"precision",
"recall",
"rouge",
"sacrebleu",
"spearmanr",
"wer",
]
def _listify(obj):
if obj is None:
return []
elif isinstance(obj, str):
return [obj]
else:
return obj
def _insert_values_as_list(metadata, name, values):
if values is None:
return metadata
if isinstance(values, str):
values = [values]
values = [v for v in values if v is not None]
if len(values) == 0:
return metadata
metadata[name] = values
return metadata
def infer_metric_tags_from_eval_results(eval_results):
if eval_results is None:
return {}
result = {}
for key in eval_results.keys():
if key.lower().replace(" ", "_") in METRIC_TAGS:
result[key.lower().replace(" ", "_")] = key
elif key.lower() == "rouge1":
result["rouge"] = key
return result
def _insert_value(metadata, name, value):
if value is None:
return metadata
metadata[name] = value
return metadata
def is_hf_dataset(dataset):
if not is_datasets_available():
return False
from datasets import Dataset, IterableDataset
return isinstance(dataset, (Dataset, IterableDataset))
def _get_mapping_values(mapping):
result = []
for v in mapping.values():
if isinstance(v, (tuple, list)):
result += list(v)
else:
result.append(v)
return result
@dataclass
class TrainingSummary:
model_name: str
language: Optional[Union[str, List[str]]] = None
license: Optional[str] = None
tags: Optional[Union[str, List[str]]] = None
finetuned_from: Optional[str] = None
tasks: Optional[Union[str, List[str]]] = None
dataset: Optional[Union[str, List[str]]] = None
dataset_tags: Optional[Union[str, List[str]]] = None
dataset_args: Optional[Union[str, List[str]]] = None
dataset_metadata: Optional[Dict[str, Any]] = None
eval_results: Optional[Dict[str, float]] = None
eval_lines: Optional[List[str]] = None
hyperparameters: Optional[Dict[str, Any]] = None
source: Optional[str] = "trainer"
def __post_init__(self):
# Infer default license from the checkpoint used, if possible.
if (
self.license is None
and not is_offline_mode()
and self.finetuned_from is not None
and len(self.finetuned_from) > 0
):
try:
info = model_info(self.finetuned_from)
for tag in info.tags:
if tag.startswith("license:"):
self.license = tag[8:]
except (requests.exceptions.HTTPError, requests.exceptions.ConnectionError, HFValidationError):
pass
def create_model_index(self, metric_mapping):
model_index = {"name": self.model_name}
# Dataset mapping tag -> name
dataset_names = _listify(self.dataset)
dataset_tags = _listify(self.dataset_tags)
dataset_args = _listify(self.dataset_args)
dataset_metadata = _listify(self.dataset_metadata)
if len(dataset_args) < len(dataset_tags):
dataset_args = dataset_args + [None] * (len(dataset_tags) - len(dataset_args))
dataset_mapping = dict(zip(dataset_tags, dataset_names))
dataset_arg_mapping = dict(zip(dataset_tags, dataset_args))
dataset_metadata_mapping = dict(zip(dataset_tags, dataset_metadata))
task_mapping = {
task: TASK_TAG_TO_NAME_MAPPING[task] for task in _listify(self.tasks) if task in TASK_TAG_TO_NAME_MAPPING
}
model_index["results"] = []
if len(task_mapping) == 0 and len(dataset_mapping) == 0:
return [model_index]
if len(task_mapping) == 0:
task_mapping = {None: None}
if len(dataset_mapping) == 0:
dataset_mapping = {None: None}
# One entry per dataset and per task
all_possibilities = [(task_tag, ds_tag) for task_tag in task_mapping for ds_tag in dataset_mapping]
for task_tag, ds_tag in all_possibilities:
result = {}
if task_tag is not None:
result["task"] = {"name": task_mapping[task_tag], "type": task_tag}
if ds_tag is not None:
metadata = dataset_metadata_mapping.get(ds_tag, {})
result["dataset"] = {
"name": dataset_mapping[ds_tag],
"type": ds_tag,
**metadata,
}
if dataset_arg_mapping[ds_tag] is not None:
result["dataset"]["args"] = dataset_arg_mapping[ds_tag]
if len(metric_mapping) > 0:
result["metrics"] = []
for metric_tag, metric_name in metric_mapping.items():
result["metrics"].append(
{
"name": metric_name,
"type": metric_tag,
"value": self.eval_results[metric_name],
}
)
# Remove partial results to avoid the model card being rejected.
if "task" in result and "dataset" in result and "metrics" in result:
model_index["results"].append(result)
else:
logger.info(f"Dropping the following result as it does not have all the necessary fields:\n{result}")
return [model_index]
def create_metadata(self):
metric_mapping = infer_metric_tags_from_eval_results(self.eval_results)
metadata = {}
metadata = _insert_values_as_list(metadata, "language", self.language)
metadata = _insert_value(metadata, "license", self.license)
if self.finetuned_from is not None and isinstance(self.finetuned_from, str) and len(self.finetuned_from) > 0:
metadata = _insert_value(metadata, "base_model", self.finetuned_from)
metadata = _insert_values_as_list(metadata, "tags", self.tags)
metadata = _insert_values_as_list(metadata, "datasets", self.dataset_tags)
metadata = _insert_values_as_list(metadata, "metrics", list(metric_mapping.keys()))
metadata["model-index"] = self.create_model_index(metric_mapping)
return metadata
def to_model_card(self):
model_card = ""
metadata = yaml.dump(self.create_metadata(), sort_keys=False)
if len(metadata) > 0:
model_card = f"---\n{metadata}---\n"
# Now the model card for realsies.
if self.source == "trainer":
model_card += AUTOGENERATED_TRAINER_COMMENT
else:
model_card += AUTOGENERATED_KERAS_COMMENT
model_card += f"\n# {self.model_name}\n\n"
if self.finetuned_from is None:
model_card += "This model was trained from scratch on "
else:
model_card += (
"This model is a fine-tuned version of"
f" [{self.finetuned_from}](https://huggingface.co/{self.finetuned_from}) on "
)
if self.dataset is None:
model_card += "an unknown dataset."
else:
if isinstance(self.dataset, str):
model_card += f"the {self.dataset} dataset."
elif isinstance(self.dataset, (tuple, list)) and len(self.dataset) == 1:
model_card += f"the {self.dataset[0]} dataset."
else:
model_card += (
", ".join([f"the {ds}" for ds in self.dataset[:-1]]) + f" and the {self.dataset[-1]} datasets."
)
if self.eval_results is not None:
model_card += "\nIt achieves the following results on the evaluation set:\n"
model_card += "\n".join([f"- {name}: {_maybe_round(value)}" for name, value in self.eval_results.items()])
model_card += "\n"
model_card += "\n## Model description\n\nMore information needed\n"
model_card += "\n## Intended uses & limitations\n\nMore information needed\n"
model_card += "\n## Training and evaluation data\n\nMore information needed\n"
model_card += "\n## Training procedure\n"
model_card += "\n### Training hyperparameters\n"
if self.hyperparameters is not None:
model_card += "\nThe following hyperparameters were used during training:\n"
model_card += "\n".join([f"- {name}: {value}" for name, value in self.hyperparameters.items()])
model_card += "\n"
else:
model_card += "\nMore information needed\n"
if self.eval_lines is not None:
model_card += "\n### Training results\n\n"
model_card += make_markdown_table(self.eval_lines)
model_card += "\n"
model_card += "\n### Framework versions\n\n"
model_card += f"- Transformers {__version__}\n"
if self.source == "trainer" and is_torch_available():
import torch
model_card += f"- Pytorch {torch.__version__}\n"
elif self.source == "keras" and is_tf_available():
import tensorflow as tf
model_card += f"- TensorFlow {tf.__version__}\n"
if is_datasets_available():
import datasets
model_card += f"- Datasets {datasets.__version__}\n"
if is_tokenizers_available():
import tokenizers
model_card += f"- Tokenizers {tokenizers.__version__}\n"
return model_card
@classmethod
def from_trainer(
cls,
trainer,
language=None,
license=None,
tags=None,
model_name=None,
finetuned_from=None,
tasks=None,
dataset_tags=None,
dataset_metadata=None,
dataset=None,
dataset_args=None,
):
# Infer default from dataset
one_dataset = trainer.eval_dataset if trainer.eval_dataset is not None else trainer.train_dataset
if is_hf_dataset(one_dataset) and (dataset_tags is None or dataset_args is None or dataset_metadata is None):
default_tag = one_dataset.builder_name
# Those are not real datasets from the Hub so we exclude them.
if default_tag not in ["csv", "json", "pandas", "parquet", "text"]:
if dataset_metadata is None:
dataset_metadata = [{"config": one_dataset.config_name, "split": str(one_dataset.split)}]
if dataset_tags is None:
dataset_tags = [default_tag]
if dataset_args is None:
dataset_args = [one_dataset.config_name]
if dataset is None and dataset_tags is not None:
dataset = dataset_tags
# Infer default finetuned_from
if (
finetuned_from is None
and hasattr(trainer.model.config, "_name_or_path")
and not os.path.isdir(trainer.model.config._name_or_path)
):
finetuned_from = trainer.model.config._name_or_path
# Infer default task tag:
if tasks is None:
model_class_name = trainer.model.__class__.__name__
for task, mapping in TASK_MAPPING.items():
if model_class_name in _get_mapping_values(mapping):
tasks = task
if model_name is None:
model_name = Path(trainer.args.output_dir).name
if len(model_name) == 0:
model_name = finetuned_from
# Add `generated_from_trainer` to the tags
if tags is None:
tags = ["generated_from_trainer"]
elif isinstance(tags, str) and tags != "generated_from_trainer":
tags = [tags, "generated_from_trainer"]
elif "generated_from_trainer" not in tags:
tags.append("generated_from_trainer")
_, eval_lines, eval_results = parse_log_history(trainer.state.log_history)
hyperparameters = extract_hyperparameters_from_trainer(trainer)
return cls(
language=language,
license=license,
tags=tags,
model_name=model_name,
finetuned_from=finetuned_from,
tasks=tasks,
dataset=dataset,
dataset_tags=dataset_tags,
dataset_args=dataset_args,
dataset_metadata=dataset_metadata,
eval_results=eval_results,
eval_lines=eval_lines,
hyperparameters=hyperparameters,
)
@classmethod
def from_keras(
cls,
model,
model_name,
keras_history=None,
language=None,
license=None,
tags=None,
finetuned_from=None,
tasks=None,
dataset_tags=None,
dataset=None,
dataset_args=None,
):
# Infer default from dataset
if dataset is not None:
if is_hf_dataset(dataset) and (dataset_tags is None or dataset_args is None):
default_tag = dataset.builder_name
# Those are not real datasets from the Hub so we exclude them.
if default_tag not in ["csv", "json", "pandas", "parquet", "text"]:
if dataset_tags is None:
dataset_tags = [default_tag]
if dataset_args is None:
dataset_args = [dataset.config_name]
if dataset is None and dataset_tags is not None:
dataset = dataset_tags
# Infer default finetuned_from
if (
finetuned_from is None
and hasattr(model.config, "_name_or_path")
and not os.path.isdir(model.config._name_or_path)
):
finetuned_from = model.config._name_or_path
# Infer default task tag:
if tasks is None:
model_class_name = model.__class__.__name__
for task, mapping in TASK_MAPPING.items():
if model_class_name in _get_mapping_values(mapping):
tasks = task
# Add `generated_from_keras_callback` to the tags
if tags is None:
tags = ["generated_from_keras_callback"]
elif isinstance(tags, str) and tags != "generated_from_keras_callback":
tags = [tags, "generated_from_keras_callback"]
elif "generated_from_keras_callback" not in tags:
tags.append("generated_from_keras_callback")
if keras_history is not None:
_, eval_lines, eval_results = parse_keras_history(keras_history)
else:
eval_lines = []
eval_results = {}
hyperparameters = extract_hyperparameters_from_keras(model)
return cls(
language=language,
license=license,
tags=tags,
model_name=model_name,
finetuned_from=finetuned_from,
tasks=tasks,
dataset_tags=dataset_tags,
dataset=dataset,
dataset_args=dataset_args,
eval_results=eval_results,
eval_lines=eval_lines,
hyperparameters=hyperparameters,
source="keras",
)
def parse_keras_history(logs):
"""
Parse the `logs` of either a `keras.History` object returned by `model.fit()` or an accumulated logs `dict`
passed to the `PushToHubCallback`. Returns lines and logs compatible with those returned by `parse_log_history`.
"""
if hasattr(logs, "history"):
# This looks like a `History` object
if not hasattr(logs, "epoch"):
# This history looks empty, return empty results
return None, [], {}
logs.history["epoch"] = logs.epoch
logs = logs.history
else:
# Training logs is a list of dicts, let's invert it to a dict of lists to match a History object
logs = {log_key: [single_dict[log_key] for single_dict in logs] for log_key in logs[0]}
lines = []
for i in range(len(logs["epoch"])):
epoch_dict = {log_key: log_value_list[i] for log_key, log_value_list in logs.items()}
values = {}
for k, v in epoch_dict.items():
if k.startswith("val_"):
k = "validation_" + k[4:]
elif k != "epoch":
k = "train_" + k
splits = k.split("_")
name = " ".join([part.capitalize() for part in splits])
values[name] = v
lines.append(values)
eval_results = lines[-1]
return logs, lines, eval_results
def parse_log_history(log_history):
"""
Parse the `log_history` of a Trainer to get the intermediate and final evaluation results.
"""
idx = 0
while idx < len(log_history) and "train_runtime" not in log_history[idx]:
idx += 1
# If there are no training logs
if idx == len(log_history):
idx -= 1
while idx >= 0 and "eval_loss" not in log_history[idx]:
idx -= 1
if idx >= 0:
return None, None, log_history[idx]
else:
return None, None, None
# From now one we can assume we have training logs:
train_log = log_history[idx]
lines = []
training_loss = "No log"
for i in range(idx):
if "loss" in log_history[i]:
training_loss = log_history[i]["loss"]
if "eval_loss" in log_history[i]:
metrics = log_history[i].copy()
_ = metrics.pop("total_flos", None)
epoch = metrics.pop("epoch", None)
step = metrics.pop("step", None)
_ = metrics.pop("eval_runtime", None)
_ = metrics.pop("eval_samples_per_second", None)
_ = metrics.pop("eval_steps_per_second", None)
_ = metrics.pop("eval_jit_compilation_time", None)
values = {"Training Loss": training_loss, "Epoch": epoch, "Step": step}
for k, v in metrics.items():
if k == "eval_loss":
values["Validation Loss"] = v
else:
splits = k.split("_")
name = " ".join([part.capitalize() for part in splits[1:]])
values[name] = v
lines.append(values)
idx = len(log_history) - 1
while idx >= 0 and "eval_loss" not in log_history[idx]:
idx -= 1
if idx > 0:
eval_results = {}
for key, value in log_history[idx].items():
if key.startswith("eval_"):
key = key[5:]
if key not in ["runtime", "samples_per_second", "steps_per_second", "epoch", "step"]:
camel_cased_key = " ".join([part.capitalize() for part in key.split("_")])
eval_results[camel_cased_key] = value
return train_log, lines, eval_results
else:
return train_log, lines, None
def extract_hyperparameters_from_keras(model):
from .modeling_tf_utils import keras
hyperparameters = {}
if hasattr(model, "optimizer") and model.optimizer is not None:
hyperparameters["optimizer"] = model.optimizer.get_config()
else:
hyperparameters["optimizer"] = None
hyperparameters["training_precision"] = keras.mixed_precision.global_policy().name
return hyperparameters
def _maybe_round(v, decimals=4):
if isinstance(v, float) and len(str(v).split(".")) > 1 and len(str(v).split(".")[1]) > decimals:
return f"{v:.{decimals}f}"
return str(v)
def _regular_table_line(values, col_widths):
values_with_space = [f"| {v}" + " " * (w - len(v) + 1) for v, w in zip(values, col_widths)]
return "".join(values_with_space) + "|\n"
def _second_table_line(col_widths):
values = ["|:" + "-" * w + ":" for w in col_widths]
return "".join(values) + "|\n"
def make_markdown_table(lines):
"""
Create a nice Markdown table from the results in `lines`.
"""
if lines is None or len(lines) == 0:
return ""
col_widths = {key: len(str(key)) for key in lines[0].keys()}
for line in lines:
for key, value in line.items():
if col_widths[key] < len(_maybe_round(value)):
col_widths[key] = len(_maybe_round(value))
table = _regular_table_line(list(lines[0].keys()), list(col_widths.values()))
table += _second_table_line(list(col_widths.values()))
for line in lines:
table += _regular_table_line([_maybe_round(v) for v in line.values()], list(col_widths.values()))
return table
_TRAINING_ARGS_KEYS = [
"learning_rate",
"train_batch_size",
"eval_batch_size",
"seed",
]
def extract_hyperparameters_from_trainer(trainer):
hyperparameters = {k: getattr(trainer.args, k) for k in _TRAINING_ARGS_KEYS}
if trainer.args.parallel_mode not in [ParallelMode.NOT_PARALLEL, ParallelMode.NOT_DISTRIBUTED]:
hyperparameters["distributed_type"] = (
"multi-GPU" if trainer.args.parallel_mode == ParallelMode.DISTRIBUTED else trainer.args.parallel_mode.value
)
if trainer.args.world_size > 1:
hyperparameters["num_devices"] = trainer.args.world_size
if trainer.args.gradient_accumulation_steps > 1:
hyperparameters["gradient_accumulation_steps"] = trainer.args.gradient_accumulation_steps
total_train_batch_size = (
trainer.args.train_batch_size * trainer.args.world_size * trainer.args.gradient_accumulation_steps
)
if total_train_batch_size != hyperparameters["train_batch_size"]:
hyperparameters["total_train_batch_size"] = total_train_batch_size
total_eval_batch_size = trainer.args.eval_batch_size * trainer.args.world_size
if total_eval_batch_size != hyperparameters["eval_batch_size"]:
hyperparameters["total_eval_batch_size"] = total_eval_batch_size
if trainer.args.adafactor:
hyperparameters["optimizer"] = "Adafactor"
else:
hyperparameters["optimizer"] = (
f"Adam with betas=({trainer.args.adam_beta1},{trainer.args.adam_beta2}) and"
f" epsilon={trainer.args.adam_epsilon}"
)
hyperparameters["lr_scheduler_type"] = trainer.args.lr_scheduler_type.value
if trainer.args.warmup_ratio != 0.0:
hyperparameters["lr_scheduler_warmup_ratio"] = trainer.args.warmup_ratio
if trainer.args.warmup_steps != 0.0:
hyperparameters["lr_scheduler_warmup_steps"] = trainer.args.warmup_steps
if trainer.args.max_steps != -1:
hyperparameters["training_steps"] = trainer.args.max_steps
else:
hyperparameters["num_epochs"] = trainer.args.num_train_epochs
if trainer.args.fp16:
if trainer.use_apex:
hyperparameters["mixed_precision_training"] = f"Apex, opt level {trainer.args.fp16_opt_level}"
else:
hyperparameters["mixed_precision_training"] = "Native AMP"
if trainer.args.label_smoothing_factor != 0.0:
hyperparameters["label_smoothing_factor"] = trainer.args.label_smoothing_factor
return hyperparameters
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/image_processing_utils.py | # coding=utf-8
# Copyright 2022 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
import json
import os
import warnings
from io import BytesIO
from typing import Any, Dict, Iterable, List, Optional, Tuple, Union
import numpy as np
import requests
from .dynamic_module_utils import custom_object_save
from .feature_extraction_utils import BatchFeature as BaseBatchFeature
from .image_transforms import center_crop, normalize, rescale
from .image_utils import ChannelDimension
from .utils import (
IMAGE_PROCESSOR_NAME,
PushToHubMixin,
add_model_info_to_auto_map,
cached_file,
copy_func,
download_url,
is_offline_mode,
is_remote_url,
is_vision_available,
logging,
)
if is_vision_available():
from PIL import Image
logger = logging.get_logger(__name__)
# TODO: Move BatchFeature to be imported by both image_processing_utils and image_processing_utils
# We override the class string here, but logic is the same.
class BatchFeature(BaseBatchFeature):
r"""
Holds the output of the image processor specific `__call__` methods.
This class is derived from a python dictionary and can be used as a dictionary.
Args:
data (`dict`):
Dictionary of lists/arrays/tensors returned by the __call__ method ('pixel_values', etc.).
tensor_type (`Union[None, str, TensorType]`, *optional*):
You can give a tensor_type here to convert the lists of integers in PyTorch/TensorFlow/Numpy Tensors at
initialization.
"""
# TODO: (Amy) - factor out the common parts of this and the feature extractor
class ImageProcessingMixin(PushToHubMixin):
"""
This is an image processor mixin used to provide saving/loading functionality for sequential and image feature
extractors.
"""
_auto_class = None
def __init__(self, **kwargs):
"""Set elements of `kwargs` as attributes."""
# This key was saved while we still used `XXXFeatureExtractor` for image processing. Now we use
# `XXXImageProcessor`, this attribute and its value are misleading.
kwargs.pop("feature_extractor_type", None)
# Pop "processor_class" as it should be saved as private attribute
self._processor_class = kwargs.pop("processor_class", None)
# Additional attributes without default values
for key, value in kwargs.items():
try:
setattr(self, key, value)
except AttributeError as err:
logger.error(f"Can't set {key} with value {value} for {self}")
raise err
def _set_processor_class(self, processor_class: str):
"""Sets processor class as an attribute."""
self._processor_class = processor_class
@classmethod
def from_pretrained(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
local_files_only: bool = False,
token: Optional[Union[str, bool]] = None,
revision: str = "main",
**kwargs,
):
r"""
Instantiate a type of [`~image_processing_utils.ImageProcessingMixin`] from an image processor.
Args:
pretrained_model_name_or_path (`str` or `os.PathLike`):
This can be either:
- a string, the *model id* of a pretrained image_processor hosted inside a model repo on
huggingface.co.
- a path to a *directory* containing a image processor file saved using the
[`~image_processing_utils.ImageProcessingMixin.save_pretrained`] method, e.g.,
`./my_model_directory/`.
- a path or url to a saved image processor JSON *file*, e.g.,
`./my_model_directory/preprocessor_config.json`.
cache_dir (`str` or `os.PathLike`, *optional*):
Path to a directory in which a downloaded pretrained model image processor should be cached if the
standard cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force to (re-)download the image processor files and override the cached versions if
they exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received file. Attempts to resume the download if such a file
exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request.
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, or not specified, will use
the token generated when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
<Tip>
To test a pull request you made on the Hub, you can pass `revision="refs/pr/<pr_number>".
</Tip>
return_unused_kwargs (`bool`, *optional*, defaults to `False`):
If `False`, then this function returns just the final image processor object. If `True`, then this
functions returns a `Tuple(image_processor, unused_kwargs)` where *unused_kwargs* is a dictionary
consisting of the key/value pairs whose keys are not image processor attributes: i.e., the part of
`kwargs` which has not been used to update `image_processor` and is otherwise ignored.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
kwargs (`Dict[str, Any]`, *optional*):
The values in kwargs of any keys which are image processor attributes will be used to override the
loaded values. Behavior concerning key/value pairs whose keys are *not* image processor attributes is
controlled by the `return_unused_kwargs` keyword parameter.
Returns:
A image processor of type [`~image_processing_utils.ImageProcessingMixin`].
Examples:
```python
# We can't instantiate directly the base class *ImageProcessingMixin* so let's show the examples on a
# derived class: *CLIPImageProcessor*
image_processor = CLIPImageProcessor.from_pretrained(
"openai/clip-vit-base-patch32"
) # Download image_processing_config from huggingface.co and cache.
image_processor = CLIPImageProcessor.from_pretrained(
"./test/saved_model/"
) # E.g. image processor (or model) was saved using *save_pretrained('./test/saved_model/')*
image_processor = CLIPImageProcessor.from_pretrained("./test/saved_model/preprocessor_config.json")
image_processor = CLIPImageProcessor.from_pretrained(
"openai/clip-vit-base-patch32", do_normalize=False, foo=False
)
assert image_processor.do_normalize is False
image_processor, unused_kwargs = CLIPImageProcessor.from_pretrained(
"openai/clip-vit-base-patch32", do_normalize=False, foo=False, return_unused_kwargs=True
)
assert image_processor.do_normalize is False
assert unused_kwargs == {"foo": False}
```"""
kwargs["cache_dir"] = cache_dir
kwargs["force_download"] = force_download
kwargs["local_files_only"] = local_files_only
kwargs["revision"] = revision
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
if token is not None:
kwargs["token"] = token
image_processor_dict, kwargs = cls.get_image_processor_dict(pretrained_model_name_or_path, **kwargs)
return cls.from_dict(image_processor_dict, **kwargs)
def save_pretrained(self, save_directory: Union[str, os.PathLike], push_to_hub: bool = False, **kwargs):
"""
Save an image processor object to the directory `save_directory`, so that it can be re-loaded using the
[`~image_processing_utils.ImageProcessingMixin.from_pretrained`] class method.
Args:
save_directory (`str` or `os.PathLike`):
Directory where the image processor JSON file will be saved (will be created if it does not exist).
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
kwargs (`Dict[str, Any]`, *optional*):
Additional key word arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if kwargs.get("token", None) is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
kwargs["token"] = use_auth_token
if os.path.isfile(save_directory):
raise AssertionError(f"Provided path ({save_directory}) should be a directory, not a file")
os.makedirs(save_directory, exist_ok=True)
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = self._create_repo(repo_id, **kwargs)
files_timestamps = self._get_files_timestamps(save_directory)
# If we have a custom config, we copy the file defining it in the folder and set the attributes so it can be
# loaded from the Hub.
if self._auto_class is not None:
custom_object_save(self, save_directory, config=self)
# If we save using the predefined names, we can load using `from_pretrained`
output_image_processor_file = os.path.join(save_directory, IMAGE_PROCESSOR_NAME)
self.to_json_file(output_image_processor_file)
logger.info(f"Image processor saved in {output_image_processor_file}")
if push_to_hub:
self._upload_modified_files(
save_directory,
repo_id,
files_timestamps,
commit_message=commit_message,
token=kwargs.get("token"),
)
return [output_image_processor_file]
@classmethod
def get_image_processor_dict(
cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
"""
From a `pretrained_model_name_or_path`, resolve to a dictionary of parameters, to be used for instantiating a
image processor of type [`~image_processor_utils.ImageProcessingMixin`] using `from_dict`.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`):
The identifier of the pre-trained checkpoint from which we want the dictionary of parameters.
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo on huggingface.co, you can
specify the folder name here.
Returns:
`Tuple[Dict, Dict]`: The dictionary(ies) that will be used to instantiate the image processor object.
"""
cache_dir = kwargs.pop("cache_dir", None)
force_download = kwargs.pop("force_download", False)
resume_download = kwargs.pop("resume_download", False)
proxies = kwargs.pop("proxies", None)
token = kwargs.pop("token", None)
use_auth_token = kwargs.pop("use_auth_token", None)
local_files_only = kwargs.pop("local_files_only", False)
revision = kwargs.pop("revision", None)
subfolder = kwargs.pop("subfolder", "")
from_pipeline = kwargs.pop("_from_pipeline", None)
from_auto_class = kwargs.pop("_from_auto", False)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError(
"`token` and `use_auth_token` are both specified. Please set only the argument `token`."
)
token = use_auth_token
user_agent = {"file_type": "image processor", "from_auto_class": from_auto_class}
if from_pipeline is not None:
user_agent["using_pipeline"] = from_pipeline
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if os.path.isdir(pretrained_model_name_or_path):
image_processor_file = os.path.join(pretrained_model_name_or_path, IMAGE_PROCESSOR_NAME)
if os.path.isfile(pretrained_model_name_or_path):
resolved_image_processor_file = pretrained_model_name_or_path
is_local = True
elif is_remote_url(pretrained_model_name_or_path):
image_processor_file = pretrained_model_name_or_path
resolved_image_processor_file = download_url(pretrained_model_name_or_path)
else:
image_processor_file = IMAGE_PROCESSOR_NAME
try:
# Load from local folder or from cache or download from model Hub and cache
resolved_image_processor_file = cached_file(
pretrained_model_name_or_path,
image_processor_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
revision=revision,
subfolder=subfolder,
)
except EnvironmentError:
# Raise any environment error raise by `cached_file`. It will have a helpful error message adapted to
# the original exception.
raise
except Exception:
# For any other exception, we throw a generic error.
raise EnvironmentError(
f"Can't load image processor for '{pretrained_model_name_or_path}'. If you were trying to load"
" it from 'https://huggingface.co/models', make sure you don't have a local directory with the"
f" same name. Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a"
f" directory containing a {IMAGE_PROCESSOR_NAME} file"
)
try:
# Load image_processor dict
with open(resolved_image_processor_file, "r", encoding="utf-8") as reader:
text = reader.read()
image_processor_dict = json.loads(text)
except json.JSONDecodeError:
raise EnvironmentError(
f"It looks like the config file at '{resolved_image_processor_file}' is not a valid JSON file."
)
if is_local:
logger.info(f"loading configuration file {resolved_image_processor_file}")
else:
logger.info(
f"loading configuration file {image_processor_file} from cache at {resolved_image_processor_file}"
)
if "auto_map" in image_processor_dict and not is_local:
image_processor_dict["auto_map"] = add_model_info_to_auto_map(
image_processor_dict["auto_map"], pretrained_model_name_or_path
)
return image_processor_dict, kwargs
@classmethod
def from_dict(cls, image_processor_dict: Dict[str, Any], **kwargs):
"""
Instantiates a type of [`~image_processing_utils.ImageProcessingMixin`] from a Python dictionary of parameters.
Args:
image_processor_dict (`Dict[str, Any]`):
Dictionary that will be used to instantiate the image processor object. Such a dictionary can be
retrieved from a pretrained checkpoint by leveraging the
[`~image_processing_utils.ImageProcessingMixin.to_dict`] method.
kwargs (`Dict[str, Any]`):
Additional parameters from which to initialize the image processor object.
Returns:
[`~image_processing_utils.ImageProcessingMixin`]: The image processor object instantiated from those
parameters.
"""
image_processor_dict = image_processor_dict.copy()
return_unused_kwargs = kwargs.pop("return_unused_kwargs", False)
# The `size` parameter is a dict and was previously an int or tuple in feature extractors.
# We set `size` here directly to the `image_processor_dict` so that it is converted to the appropriate
# dict within the image processor and isn't overwritten if `size` is passed in as a kwarg.
if "size" in kwargs and "size" in image_processor_dict:
image_processor_dict["size"] = kwargs.pop("size")
if "crop_size" in kwargs and "crop_size" in image_processor_dict:
image_processor_dict["crop_size"] = kwargs.pop("crop_size")
image_processor = cls(**image_processor_dict)
# Update image_processor with kwargs if needed
to_remove = []
for key, value in kwargs.items():
if hasattr(image_processor, key):
setattr(image_processor, key, value)
to_remove.append(key)
for key in to_remove:
kwargs.pop(key, None)
logger.info(f"Image processor {image_processor}")
if return_unused_kwargs:
return image_processor, kwargs
else:
return image_processor
def to_dict(self) -> Dict[str, Any]:
"""
Serializes this instance to a Python dictionary.
Returns:
`Dict[str, Any]`: Dictionary of all the attributes that make up this image processor instance.
"""
output = copy.deepcopy(self.__dict__)
output["image_processor_type"] = self.__class__.__name__
return output
@classmethod
def from_json_file(cls, json_file: Union[str, os.PathLike]):
"""
Instantiates a image processor of type [`~image_processing_utils.ImageProcessingMixin`] from the path to a JSON
file of parameters.
Args:
json_file (`str` or `os.PathLike`):
Path to the JSON file containing the parameters.
Returns:
A image processor of type [`~image_processing_utils.ImageProcessingMixin`]: The image_processor object
instantiated from that JSON file.
"""
with open(json_file, "r", encoding="utf-8") as reader:
text = reader.read()
image_processor_dict = json.loads(text)
return cls(**image_processor_dict)
def to_json_string(self) -> str:
"""
Serializes this instance to a JSON string.
Returns:
`str`: String containing all the attributes that make up this feature_extractor instance in JSON format.
"""
dictionary = self.to_dict()
for key, value in dictionary.items():
if isinstance(value, np.ndarray):
dictionary[key] = value.tolist()
# make sure private name "_processor_class" is correctly
# saved as "processor_class"
_processor_class = dictionary.pop("_processor_class", None)
if _processor_class is not None:
dictionary["processor_class"] = _processor_class
return json.dumps(dictionary, indent=2, sort_keys=True) + "\n"
def to_json_file(self, json_file_path: Union[str, os.PathLike]):
"""
Save this instance to a JSON file.
Args:
json_file_path (`str` or `os.PathLike`):
Path to the JSON file in which this image_processor instance's parameters will be saved.
"""
with open(json_file_path, "w", encoding="utf-8") as writer:
writer.write(self.to_json_string())
def __repr__(self):
return f"{self.__class__.__name__} {self.to_json_string()}"
@classmethod
def register_for_auto_class(cls, auto_class="AutoImageProcessor"):
"""
Register this class with a given auto class. This should only be used for custom image processors as the ones
in the library are already mapped with `AutoImageProcessor `.
<Tip warning={true}>
This API is experimental and may have some slight breaking changes in the next releases.
</Tip>
Args:
auto_class (`str` or `type`, *optional*, defaults to `"AutoImageProcessor "`):
The auto class to register this new image processor with.
"""
if not isinstance(auto_class, str):
auto_class = auto_class.__name__
import transformers.models.auto as auto_module
if not hasattr(auto_module, auto_class):
raise ValueError(f"{auto_class} is not a valid auto class.")
cls._auto_class = auto_class
def fetch_images(self, image_url_or_urls: Union[str, List[str]]):
"""
Convert a single or a list of urls into the corresponding `PIL.Image` objects.
If a single url is passed, the return value will be a single object. If a list is passed a list of objects is
returned.
"""
headers = {
"User-Agent": (
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0"
" Safari/537.36"
)
}
if isinstance(image_url_or_urls, list):
return [self.fetch_images(x) for x in image_url_or_urls]
elif isinstance(image_url_or_urls, str):
response = requests.get(image_url_or_urls, stream=True, headers=headers)
response.raise_for_status()
return Image.open(BytesIO(response.content))
else:
raise ValueError(f"only a single or a list of entries is supported but got type={type(image_url_or_urls)}")
class BaseImageProcessor(ImageProcessingMixin):
def __init__(self, **kwargs):
super().__init__(**kwargs)
def __call__(self, images, **kwargs) -> BatchFeature:
"""Preprocess an image or a batch of images."""
return self.preprocess(images, **kwargs)
def preprocess(self, images, **kwargs) -> BatchFeature:
raise NotImplementedError("Each image processor must implement its own preprocess method")
def rescale(
self,
image: np.ndarray,
scale: float,
data_format: Optional[Union[str, ChannelDimension]] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
**kwargs,
) -> np.ndarray:
"""
Rescale an image by a scale factor. image = image * scale.
Args:
image (`np.ndarray`):
Image to rescale.
scale (`float`):
The scaling factor to rescale pixel values by.
data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the output image. If unset, the channel dimension format of the input
image is used. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
input_data_format (`ChannelDimension` or `str`, *optional*):
The channel dimension format for the input image. If unset, the channel dimension format is inferred
from the input image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
Returns:
`np.ndarray`: The rescaled image.
"""
return rescale(image, scale=scale, data_format=data_format, input_data_format=input_data_format, **kwargs)
def normalize(
self,
image: np.ndarray,
mean: Union[float, Iterable[float]],
std: Union[float, Iterable[float]],
data_format: Optional[Union[str, ChannelDimension]] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
**kwargs,
) -> np.ndarray:
"""
Normalize an image. image = (image - image_mean) / image_std.
Args:
image (`np.ndarray`):
Image to normalize.
mean (`float` or `Iterable[float]`):
Image mean to use for normalization.
std (`float` or `Iterable[float]`):
Image standard deviation to use for normalization.
data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the output image. If unset, the channel dimension format of the input
image is used. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
input_data_format (`ChannelDimension` or `str`, *optional*):
The channel dimension format for the input image. If unset, the channel dimension format is inferred
from the input image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
Returns:
`np.ndarray`: The normalized image.
"""
return normalize(
image, mean=mean, std=std, data_format=data_format, input_data_format=input_data_format, **kwargs
)
def center_crop(
self,
image: np.ndarray,
size: Dict[str, int],
data_format: Optional[Union[str, ChannelDimension]] = None,
input_data_format: Optional[Union[str, ChannelDimension]] = None,
**kwargs,
) -> np.ndarray:
"""
Center crop an image to `(size["height"], size["width"])`. If the input size is smaller than `crop_size` along
any edge, the image is padded with 0's and then center cropped.
Args:
image (`np.ndarray`):
Image to center crop.
size (`Dict[str, int]`):
Size of the output image.
data_format (`str` or `ChannelDimension`, *optional*):
The channel dimension format for the output image. If unset, the channel dimension format of the input
image is used. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
input_data_format (`ChannelDimension` or `str`, *optional*):
The channel dimension format for the input image. If unset, the channel dimension format is inferred
from the input image. Can be one of:
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
"""
size = get_size_dict(size)
if "height" not in size or "width" not in size:
raise ValueError(f"The size dictionary must have keys 'height' and 'width'. Got {size.keys()}")
return center_crop(
image,
size=(size["height"], size["width"]),
data_format=data_format,
input_data_format=input_data_format,
**kwargs,
)
VALID_SIZE_DICT_KEYS = ({"height", "width"}, {"shortest_edge"}, {"shortest_edge", "longest_edge"}, {"longest_edge"})
def is_valid_size_dict(size_dict):
if not isinstance(size_dict, dict):
return False
size_dict_keys = set(size_dict.keys())
for allowed_keys in VALID_SIZE_DICT_KEYS:
if size_dict_keys == allowed_keys:
return True
return False
def convert_to_size_dict(
size, max_size: Optional[int] = None, default_to_square: bool = True, height_width_order: bool = True
):
# By default, if size is an int we assume it represents a tuple of (size, size).
if isinstance(size, int) and default_to_square:
if max_size is not None:
raise ValueError("Cannot specify both size as an int, with default_to_square=True and max_size")
return {"height": size, "width": size}
# In other configs, if size is an int and default_to_square is False, size represents the length of
# the shortest edge after resizing.
elif isinstance(size, int) and not default_to_square:
size_dict = {"shortest_edge": size}
if max_size is not None:
size_dict["longest_edge"] = max_size
return size_dict
# Otherwise, if size is a tuple it's either (height, width) or (width, height)
elif isinstance(size, (tuple, list)) and height_width_order:
return {"height": size[0], "width": size[1]}
elif isinstance(size, (tuple, list)) and not height_width_order:
return {"height": size[1], "width": size[0]}
elif size is None and max_size is not None:
if default_to_square:
raise ValueError("Cannot specify both default_to_square=True and max_size")
return {"longest_edge": max_size}
raise ValueError(f"Could not convert size input to size dict: {size}")
def get_size_dict(
size: Union[int, Iterable[int], Dict[str, int]] = None,
max_size: Optional[int] = None,
height_width_order: bool = True,
default_to_square: bool = True,
param_name="size",
) -> dict:
"""
Converts the old size parameter in the config into the new dict expected in the config. This is to ensure backwards
compatibility with the old image processor configs and removes ambiguity over whether the tuple is in (height,
width) or (width, height) format.
- If `size` is tuple, it is converted to `{"height": size[0], "width": size[1]}` or `{"height": size[1], "width":
size[0]}` if `height_width_order` is `False`.
- If `size` is an int, and `default_to_square` is `True`, it is converted to `{"height": size, "width": size}`.
- If `size` is an int and `default_to_square` is False, it is converted to `{"shortest_edge": size}`. If `max_size`
is set, it is added to the dict as `{"longest_edge": max_size}`.
Args:
size (`Union[int, Iterable[int], Dict[str, int]]`, *optional*):
The `size` parameter to be cast into a size dictionary.
max_size (`Optional[int]`, *optional*):
The `max_size` parameter to be cast into a size dictionary.
height_width_order (`bool`, *optional*, defaults to `True`):
If `size` is a tuple, whether it's in (height, width) or (width, height) order.
default_to_square (`bool`, *optional*, defaults to `True`):
If `size` is an int, whether to default to a square image or not.
"""
if not isinstance(size, dict):
size_dict = convert_to_size_dict(size, max_size, default_to_square, height_width_order)
logger.info(
f"{param_name} should be a dictionary on of the following set of keys: {VALID_SIZE_DICT_KEYS}, got {size}."
f" Converted to {size_dict}.",
)
else:
size_dict = size
if not is_valid_size_dict(size_dict):
raise ValueError(
f"{param_name} must have one of the following set of keys: {VALID_SIZE_DICT_KEYS}, got {size_dict.keys()}"
)
return size_dict
def select_best_resolution(original_size: tuple, possible_resolutions: list) -> tuple:
"""
Selects the best resolution from a list of possible resolutions based on the original size.
This is done by calculating the effective and wasted resolution for each possible resolution.
The best fit resolution is the one that maximizes the effective resolution and minimizes the wasted resolution.
Args:
original_size (tuple):
The original size of the image in the format (height, width).
possible_resolutions (list):
A list of possible resolutions in the format [(height1, width1), (height2, width2), ...].
Returns:
tuple: The best fit resolution in the format (height, width).
"""
original_height, original_width = original_size
best_fit = None
max_effective_resolution = 0
min_wasted_resolution = float("inf")
for height, width in possible_resolutions:
scale = min(width / original_width, height / original_height)
downscaled_width, downscaled_height = int(original_width * scale), int(original_height * scale)
effective_resolution = min(downscaled_width * downscaled_height, original_width * original_height)
wasted_resolution = (width * height) - effective_resolution
if effective_resolution > max_effective_resolution or (
effective_resolution == max_effective_resolution and wasted_resolution < min_wasted_resolution
):
max_effective_resolution = effective_resolution
min_wasted_resolution = wasted_resolution
best_fit = (height, width)
return best_fit
ImageProcessingMixin.push_to_hub = copy_func(ImageProcessingMixin.push_to_hub)
if ImageProcessingMixin.push_to_hub.__doc__ is not None:
ImageProcessingMixin.push_to_hub.__doc__ = ImageProcessingMixin.push_to_hub.__doc__.format(
object="image processor", object_class="AutoImageProcessor", object_files="image processor file"
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/keras_callbacks.py | import logging
import os
from pathlib import Path
from time import sleep
from typing import Callable, List, Optional, Union
import numpy as np
import tensorflow as tf
from huggingface_hub import Repository, create_repo
from packaging.version import parse
from . import IntervalStrategy, PreTrainedTokenizerBase
from .modelcard import TrainingSummary
from .modeling_tf_utils import keras
logger = logging.getLogger(__name__)
class KerasMetricCallback(keras.callbacks.Callback):
"""
Callback to compute metrics at the end of every epoch. Unlike normal Keras metrics, these do not need to be
compilable by TF. It is particularly useful for common NLP metrics like BLEU and ROUGE that require string
operations or generation loops that cannot be compiled. Predictions (or generations) will be computed on the
`eval_dataset` before being passed to the `metric_fn` in `np.ndarray` format. The `metric_fn` should compute
metrics and return a dict mapping metric names to metric values.
We provide an example of a suitable metric_fn that computes ROUGE scores for a summarization model below. Note that
this example skips some post-processing for readability and simplicity, and should probably not be used as-is!
```py
from datasets import load_metric
rouge_metric = load_metric("rouge")
def rouge_fn(predictions, labels):
decoded_predictions = tokenizer.batch_decode(predictions, skip_special_tokens=True)
decoded_labels = tokenizer.batch_decode(labels, skip_special_tokens=True)
result = rouge_metric.compute(predictions=decoded_predictions, references=decoded_labels)
return {key: value.mid.fmeasure * 100 for key, value in result.items()}
```
The above function will return a dict containing values which will be logged like any other Keras metric:
```
{'rouge1': 37.4199, 'rouge2': 13.9768, 'rougeL': 34.361, 'rougeLsum': 35.0781
```
Args:
metric_fn (`Callable`):
Metric function provided by the user. It will be called with two arguments - `predictions` and `labels`.
These contain the model's outputs and matching labels from the dataset. It should return a dict mapping
metric names to numerical values.
eval_dataset (`tf.data.Dataset` or `dict` or `tuple` or `np.ndarray` or `tf.Tensor`):
Validation data to be used to generate predictions for the `metric_fn`.
output_cols (`List[str], *optional*):
A list of columns to be retained from the model output as the predictions. Defaults to all.
label_cols ('`List[str]`, *optional*'):
A list of columns to be retained from the input dataset as the labels. Will be autodetected if this is not
supplied.
batch_size (`int`, *optional*):
Batch size. Only used when the data is not a pre-batched `tf.data.Dataset`.
predict_with_generate (`bool`, *optional*, defaults to `False`):
Whether we should use `model.generate()` to get outputs for the model.
use_xla_generation (`bool`, *optional*, defaults to `False`):
If we're generating, whether to compile model generation with XLA. This can massively increase the speed of
generation (up to 100X speedup) but will require a new XLA compilation for each input shape. When using XLA
generation, it's a good idea to pad your inputs to the same size, or to use the `pad_to_multiple_of`
argument in your `tokenizer` or `DataCollator`, which will reduce the number of unique input shapes and
save a lot of compilation time. This option has no effect is `predict_with_generate` is `False`.
generate_kwargs (`dict`, *optional*):
Keyword arguments to pass to `model.generate()` when generating. Has no effect if `predict_with_generate`
is `False`.
"""
def __init__(
self,
metric_fn: Callable,
eval_dataset: Union[tf.data.Dataset, np.ndarray, tf.Tensor, tuple, dict],
output_cols: Optional[List[str]] = None,
label_cols: Optional[List[str]] = None,
batch_size: Optional[int] = None,
predict_with_generate: bool = False,
use_xla_generation: bool = False,
generate_kwargs: Optional[dict] = None,
):
super().__init__()
self.metric_fn = metric_fn
self.batch_size = batch_size
if not isinstance(eval_dataset, tf.data.Dataset):
if batch_size is None:
raise ValueError(
"When passing data to KerasMetricCallback that is not a pre-batched tf.data.Dataset "
"the batch_size argument must be set."
)
# Wrap a tf.data.Dataset around it
eval_dataset = tf.data.Dataset.from_tensor_slices(eval_dataset).batch(batch_size, drop_remainder=False)
self.eval_dataset = eval_dataset
self.predict_with_generate = predict_with_generate
self.output_cols = output_cols
# This next block attempts to parse out which elements of the dataset should be appended to the labels list
# that is passed to the metric_fn
if isinstance(eval_dataset.element_spec, tuple) and len(eval_dataset.element_spec) == 2:
input_spec, label_spec = eval_dataset.element_spec
else:
input_spec = eval_dataset.element_spec
label_spec = None
if label_cols is not None:
for label in label_cols:
if label not in input_spec:
raise ValueError(f"Label {label} is in label_cols but could not be found in the dataset inputs!")
self.label_cols = label_cols
self.use_keras_label = False
elif label_spec is not None:
# If the dataset inputs are split into a 2-tuple of inputs and labels,
# assume the second element is the labels
self.label_cols = None
self.use_keras_label = True
elif "labels" in input_spec:
self.label_cols = ["labels"]
self.use_keras_label = False
logging.warning("No label_cols specified for KerasMetricCallback, assuming you want the 'labels' key.")
elif "start_positions" in input_spec and "end_positions" in input_spec:
self.label_cols = ["start_positions", "end_positions"]
self.use_keras_label = False
logging.warning(
"No label_cols specified for KerasMetricCallback, assuming you want the "
"start_positions and end_positions keys."
)
else:
raise ValueError("Could not autodetect label_cols for KerasMetricCallback, please specify them!")
if parse(tf.__version__) < parse("2.7"):
logging.warning("TF versions less than 2.7 may encounter issues with KerasMetricCallback!")
self.use_xla_generation = use_xla_generation
self.generate_kwargs = {} if generate_kwargs is None else generate_kwargs
self.generation_function = None
@staticmethod
def _concatenate_batches(batches, padding_index=-100):
# If all batches are unidimensional or same length, do a simple concatenation
if batches[0].ndim == 1 or all(batch.shape[1] == batches[0].shape[1] for batch in batches):
return np.concatenate(batches, axis=0)
# Welp, they're not the same length. Let's do some padding
max_len = max([batch.shape[1] for batch in batches])
num_samples = sum([batch.shape[0] for batch in batches])
output = np.full_like(
batches[0], fill_value=padding_index, shape=[num_samples, max_len] + list(batches[0].shape[2:])
)
# i keeps track of which part of the concatenated array we're writing the next batch to
i = 0
for batch in batches:
output[i : i + len(batch), : batch.shape[1]] = batch
i += len(batch)
return output
def _postprocess_predictions_or_labels(self, inputs):
if isinstance(inputs[0], dict):
outputs = {}
for key in inputs[0].keys():
outputs[key] = self._concatenate_batches([batch[key] for batch in inputs])
# If it's a dict with only one key, just return the array
if len(outputs) == 1:
outputs = list(outputs.values())[0]
elif isinstance(inputs[0], list) or isinstance(inputs[0], tuple):
outputs = []
for input_list in zip(*inputs):
outputs.append(self._concatenate_batches(input_list))
if len(outputs) == 1:
outputs = outputs[0] # If it's a list with only one element, just return the array
elif isinstance(inputs[0], np.ndarray):
outputs = self._concatenate_batches(inputs)
elif isinstance(inputs[0], tf.Tensor):
outputs = self._concatenate_batches([tensor.numpy() for tensor in inputs])
else:
raise TypeError(f"Couldn't handle batch of type {type(inputs[0])}!")
return outputs
def on_epoch_end(self, epoch, logs=None):
if hasattr(self.model, "config"):
ignore_keys = getattr(self.model.config, "keys_to_ignore_at_inference", [])
else:
ignore_keys = []
main_input_name = None
if self.predict_with_generate:
# This dense conditional recognizes the case where we have an encoder-decoder model, but
# avoids getting tangled up when we just have a model with a layer called 'encoder'
if hasattr(self.model, "encoder") and hasattr(self.model.encoder, "main_input_name"):
main_input_name = self.model.encoder.main_input_name
else:
main_input_name = getattr(self.model, "main_input_name", "input_ids")
if self.use_xla_generation and self.generation_function is None:
def generation_function(inputs, attention_mask):
return self.model.generate(inputs, attention_mask=attention_mask, **self.generate_kwargs)
self.generation_function = tf.function(generation_function, jit_compile=True)
prediction_list = []
label_list = []
# The whole predict/generate loop is handled inside this method
for batch in self.eval_dataset:
if isinstance(batch, tuple):
batch, labels = batch
else:
labels = None
if self.predict_with_generate:
if isinstance(batch, dict):
generation_inputs = batch[main_input_name]
attention_mask = batch.get("attention_mask", None)
else:
generation_inputs = batch
attention_mask = None
if self.use_xla_generation:
predictions = self.generation_function(generation_inputs, attention_mask=attention_mask)
else:
predictions = self.model.generate(
generation_inputs, attention_mask=attention_mask, **self.generate_kwargs
)
else:
predictions = self.model.predict_on_batch(batch)
if isinstance(predictions, dict):
# This converts any dict-subclass to a regular dict
# Keras REALLY doesn't like it when we pass around a BatchEncoding or other derived class
predictions = dict(predictions)
if self.output_cols is not None:
predictions = {key: predictions[key] for key in self.output_cols}
else:
predictions = {
key: val for key, val in predictions.items() if key not in ignore_keys + ["loss"]
}
prediction_list.append(predictions)
if not self.use_keras_label:
labels = {key: batch[key].numpy() for key in self.label_cols}
elif isinstance(labels, dict):
labels = {key: array.numpy() for key, array in labels.items()}
elif isinstance(labels, list) or isinstance(labels, tuple):
labels = [array.numpy() for array in labels]
elif isinstance(labels, tf.Tensor):
labels = labels.numpy()
else:
raise TypeError(f"Confused by labels of type {type(labels)}")
label_list.append(labels)
all_preds = self._postprocess_predictions_or_labels(prediction_list)
all_labels = self._postprocess_predictions_or_labels(label_list)
metric_output = self.metric_fn((all_preds, all_labels))
if not isinstance(metric_output, dict):
raise TypeError(
f"metric_fn should return a dict mapping metric names to values but instead returned {metric_output}"
)
# This is the critical bit - Keras passes a dict containing the loss and standard metric values for this epoch
# in the logs argument. Ordinarily, this is so the callback can read them, but in this case we write a bunch of
# new keys in there, which will then get read by the History callback and treated like any other metric value.
# I promise that I have it in writing from Chollet that this is okay.
logs.update(metric_output)
class PushToHubCallback(keras.callbacks.Callback):
"""
Callback that will save and push the model to the Hub regularly. By default, it pushes once per epoch, but this can
be changed with the `save_strategy` argument. Pushed models can be accessed like any other model on the hub, such
as with the `from_pretrained` method.
```py
from transformers.keras_callbacks import PushToHubCallback
push_to_hub_callback = PushToHubCallback(
output_dir="./model_save",
tokenizer=tokenizer,
hub_model_id="gpt5-7xlarge",
)
model.fit(train_dataset, callbacks=[push_to_hub_callback])
```
Args:
output_dir (`str`):
The output directory where the model predictions and checkpoints will be written and synced with the
repository on the Hub.
save_strategy (`str` or [`~trainer_utils.IntervalStrategy`], *optional*, defaults to `"epoch"`):
The checkpoint save strategy to adopt during training. Possible values are:
- `"no"`: Save is done at the end of training.
- `"epoch"`: Save is done at the end of each epoch.
- `"steps"`: Save is done every `save_steps`
save_steps (`int`, *optional*):
The number of steps between saves when using the "steps" `save_strategy`.
tokenizer (`PreTrainedTokenizerBase`, *optional*):
The tokenizer used by the model. If supplied, will be uploaded to the repo alongside the weights.
hub_model_id (`str`, *optional*):
The name of the repository to keep in sync with the local `output_dir`. It can be a simple model ID in
which case the model will be pushed in your namespace. Otherwise it should be the whole repository name,
for instance `"user_name/model"`, which allows you to push to an organization you are a member of with
`"organization_name/model"`.
Will default to the name of `output_dir`.
hub_token (`str`, *optional*):
The token to use to push the model to the Hub. Will default to the token in the cache folder obtained with
`huggingface-cli login`.
checkpoint (`bool`, *optional*, defaults to `False`):
Whether to save full training checkpoints (including epoch and optimizer state) to allow training to be
resumed. Only usable when `save_strategy` is `"epoch"`.
"""
def __init__(
self,
output_dir: Union[str, Path],
save_strategy: Union[str, IntervalStrategy] = "epoch",
save_steps: Optional[int] = None,
tokenizer: Optional[PreTrainedTokenizerBase] = None,
hub_model_id: Optional[str] = None,
hub_token: Optional[str] = None,
checkpoint: bool = False,
**model_card_args,
):
super().__init__()
if checkpoint and save_strategy != "epoch":
raise ValueError("Cannot save checkpoints when save_strategy is not 'epoch'!")
if isinstance(save_strategy, str):
save_strategy = IntervalStrategy(save_strategy.lower())
self.save_strategy = save_strategy
if self.save_strategy == IntervalStrategy.STEPS and (not isinstance(save_steps, int) or save_steps <= 0):
raise ValueError("Please supply a positive integer argument for save_steps when save_strategy == 'steps'!")
self.save_steps = save_steps
output_dir = Path(output_dir)
# Create repo and retrieve repo_id
if hub_model_id is None:
hub_model_id = output_dir.absolute().name
self.hub_model_id = create_repo(repo_id=hub_model_id, exist_ok=True, token=hub_token).repo_id
self.output_dir = output_dir
self.repo = Repository(str(self.output_dir), clone_from=self.hub_model_id, token=hub_token)
self.tokenizer = tokenizer
self.last_job = None
self.checkpoint = checkpoint
self.training_history = None
self.model_card_args = model_card_args
def on_train_begin(self, logs=None):
# Although we can access model.history, we have no guarantees that the History callback will fire before this
# one, so we keep track of it here too
self.training_history = []
def on_train_batch_end(self, batch, logs=None):
if self.save_strategy == IntervalStrategy.STEPS and (batch + 1) % self.save_steps == 0:
if self.last_job is not None and not self.last_job.is_done:
return # The last upload is still running, don't start another
self.model.save_pretrained(self.output_dir)
if self.tokenizer is not None:
self.tokenizer.save_pretrained(self.output_dir)
_, self.last_job = self.repo.push_to_hub(
commit_message=f"Training in progress steps {batch}", blocking=False
)
def on_epoch_end(self, epoch, logs=None):
logs = logs.copy() # Don't accidentally write things that Keras will read later
if "epoch" not in logs:
logs["epoch"] = epoch
self.training_history.append(logs)
if self.save_strategy == IntervalStrategy.EPOCH:
if self.last_job is not None and not self.last_job.is_done:
return # The last upload is still running, don't start another
self.model.save_pretrained(self.output_dir)
if self.tokenizer is not None:
self.tokenizer.save_pretrained(self.output_dir)
if self.checkpoint:
checkpoint_dir = os.path.join(self.output_dir, "checkpoint")
self.model._save_checkpoint(checkpoint_dir, epoch)
train_summary = TrainingSummary.from_keras(
model=self.model,
model_name=self.hub_model_id,
keras_history=self.training_history,
**self.model_card_args,
)
model_card = train_summary.to_model_card()
with (self.output_dir / "README.md").open("w") as f:
f.write(model_card)
_, self.last_job = self.repo.push_to_hub(
commit_message=f"Training in progress epoch {epoch}", blocking=False
)
def on_train_end(self, logs=None):
# Makes sure the latest version of the model is uploaded
if self.last_job is not None and not self.last_job.is_done:
logging.info("Pushing the last epoch to the Hub, this may take a while...")
while not self.last_job.is_done:
sleep(1)
else:
self.model.save_pretrained(self.output_dir)
if self.tokenizer is not None:
self.tokenizer.save_pretrained(self.output_dir)
train_summary = TrainingSummary.from_keras(
model=self.model,
model_name=self.hub_model_id,
keras_history=self.training_history,
**self.model_card_args,
)
model_card = train_summary.to_model_card()
with (self.output_dir / "README.md").open("w") as f:
f.write(model_card)
self.repo.push_to_hub(commit_message="End of training", blocking=True)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/file_utils.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
File utilities: utilities related to download and cache models
This module should not be update anymore and is only left for backward compatibility.
"""
from huggingface_hub import get_full_repo_name # for backward compatibility
from huggingface_hub.constants import HF_HUB_DISABLE_TELEMETRY as DISABLE_TELEMETRY # for backward compatibility
from . import __version__
# Backward compatibility imports, to make sure all those objects can be found in file_utils
from .utils import (
CLOUDFRONT_DISTRIB_PREFIX,
CONFIG_NAME,
DUMMY_INPUTS,
DUMMY_MASK,
ENV_VARS_TRUE_AND_AUTO_VALUES,
ENV_VARS_TRUE_VALUES,
FEATURE_EXTRACTOR_NAME,
FLAX_WEIGHTS_NAME,
HF_MODULES_CACHE,
HUGGINGFACE_CO_PREFIX,
HUGGINGFACE_CO_RESOLVE_ENDPOINT,
MODEL_CARD_NAME,
MULTIPLE_CHOICE_DUMMY_INPUTS,
PYTORCH_PRETRAINED_BERT_CACHE,
PYTORCH_TRANSFORMERS_CACHE,
S3_BUCKET_PREFIX,
SENTENCEPIECE_UNDERLINE,
SPIECE_UNDERLINE,
TF2_WEIGHTS_NAME,
TF_WEIGHTS_NAME,
TORCH_FX_REQUIRED_VERSION,
TRANSFORMERS_CACHE,
TRANSFORMERS_DYNAMIC_MODULE_NAME,
USE_JAX,
USE_TF,
USE_TORCH,
WEIGHTS_INDEX_NAME,
WEIGHTS_NAME,
ContextManagers,
DummyObject,
EntryNotFoundError,
ExplicitEnum,
ModelOutput,
PaddingStrategy,
PushToHubMixin,
RepositoryNotFoundError,
RevisionNotFoundError,
TensorType,
_LazyModule,
add_code_sample_docstrings,
add_end_docstrings,
add_start_docstrings,
add_start_docstrings_to_model_forward,
cached_property,
copy_func,
default_cache_path,
define_sagemaker_information,
get_cached_models,
get_file_from_repo,
get_torch_version,
has_file,
http_user_agent,
is_apex_available,
is_bs4_available,
is_coloredlogs_available,
is_datasets_available,
is_detectron2_available,
is_faiss_available,
is_flax_available,
is_ftfy_available,
is_g2p_en_available,
is_in_notebook,
is_ipex_available,
is_librosa_available,
is_offline_mode,
is_onnx_available,
is_pandas_available,
is_phonemizer_available,
is_protobuf_available,
is_psutil_available,
is_py3nvml_available,
is_pyctcdecode_available,
is_pytesseract_available,
is_pytorch_quantization_available,
is_rjieba_available,
is_sagemaker_dp_enabled,
is_sagemaker_mp_enabled,
is_scipy_available,
is_sentencepiece_available,
is_seqio_available,
is_sklearn_available,
is_soundfile_availble,
is_spacy_available,
is_speech_available,
is_tensor,
is_tensorflow_probability_available,
is_tf2onnx_available,
is_tf_available,
is_timm_available,
is_tokenizers_available,
is_torch_available,
is_torch_bf16_available,
is_torch_cuda_available,
is_torch_fx_available,
is_torch_fx_proxy,
is_torch_mps_available,
is_torch_tf32_available,
is_torch_xla_available,
is_torchaudio_available,
is_training_run_on_sagemaker,
is_vision_available,
replace_return_docstrings,
requires_backends,
to_numpy,
to_py_obj,
torch_only_method,
)
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/trainer_seq2seq.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import warnings
from copy import deepcopy
from pathlib import Path
from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Tuple, Union
import torch
from torch import nn
from torch.utils.data import Dataset
from .generation.configuration_utils import GenerationConfig
from .integrations.deepspeed import is_deepspeed_zero3_enabled
from .trainer import Trainer
from .utils import logging
if TYPE_CHECKING:
from .data.data_collator import DataCollator
from .modeling_utils import PreTrainedModel
from .tokenization_utils_base import PreTrainedTokenizerBase
from .trainer_callback import TrainerCallback
from .trainer_utils import EvalPrediction, PredictionOutput
from .training_args import TrainingArguments
logger = logging.get_logger(__name__)
class Seq2SeqTrainer(Trainer):
def __init__(
self,
model: Union["PreTrainedModel", nn.Module] = None,
args: "TrainingArguments" = None,
data_collator: Optional["DataCollator"] = None,
train_dataset: Optional[Dataset] = None,
eval_dataset: Optional[Union[Dataset, Dict[str, Dataset]]] = None,
tokenizer: Optional["PreTrainedTokenizerBase"] = None,
model_init: Optional[Callable[[], "PreTrainedModel"]] = None,
compute_metrics: Optional[Callable[["EvalPrediction"], Dict]] = None,
callbacks: Optional[List["TrainerCallback"]] = None,
optimizers: Tuple[torch.optim.Optimizer, torch.optim.lr_scheduler.LambdaLR] = (None, None),
preprocess_logits_for_metrics: Optional[Callable[[torch.Tensor, torch.Tensor], torch.Tensor]] = None,
):
super().__init__(
model=model,
args=args,
data_collator=data_collator,
train_dataset=train_dataset,
eval_dataset=eval_dataset,
tokenizer=tokenizer,
model_init=model_init,
compute_metrics=compute_metrics,
callbacks=callbacks,
optimizers=optimizers,
preprocess_logits_for_metrics=preprocess_logits_for_metrics,
)
# Override self.model.generation_config if a GenerationConfig is specified in args.
# Priority: args.generation_config > model.generation_config > default GenerationConfig.
if self.args.generation_config is not None:
gen_config = self.load_generation_config(self.args.generation_config)
self.model.generation_config = gen_config
@staticmethod
def load_generation_config(gen_config_arg: Union[str, GenerationConfig]) -> GenerationConfig:
"""
Loads a `~generation.GenerationConfig` from the `Seq2SeqTrainingArguments.generation_config` arguments.
Args:
gen_config_arg (`str` or [`~generation.GenerationConfig`]):
`Seq2SeqTrainingArguments.generation_config` argument.
Returns:
A `~generation.GenerationConfig`.
"""
# GenerationConfig provided, nothing to do
if isinstance(gen_config_arg, GenerationConfig):
gen_config = deepcopy(gen_config_arg)
else:
# str or Path
pretrained_model_name = Path(gen_config_arg) if isinstance(gen_config_arg, str) else gen_config_arg
config_file_name = None
# Figuring if it is path pointing to a file, pointing to a directory or else a model id or URL
# This step is required in order to determine config_file_name
if pretrained_model_name.is_file():
config_file_name = pretrained_model_name.name
pretrained_model_name = pretrained_model_name.parent
# dir path
elif pretrained_model_name.is_dir():
pass
# model id or URL
else:
pretrained_model_name = gen_config_arg
gen_config = GenerationConfig.from_pretrained(pretrained_model_name, config_file_name)
# Strict validation to fail early. `GenerationConfig.save_pretrained()`, run at the end of training, throws
# an exception if there are warnings at validation time.
try:
with warnings.catch_warnings(record=True) as caught_warnings:
gen_config.validate()
if len(caught_warnings) > 0:
raise ValueError(str([w.message for w in caught_warnings]))
except ValueError as exc:
raise ValueError(
"The loaded generation config instance is invalid -- `GenerationConfig.validate()` throws warnings "
"and/or exceptions. Fix these issues to train your model.\n\nThrown during validation:\n" + str(exc)
)
return gen_config
def evaluate(
self,
eval_dataset: Optional[Dataset] = None,
ignore_keys: Optional[List[str]] = None,
metric_key_prefix: str = "eval",
**gen_kwargs,
) -> Dict[str, float]:
"""
Run evaluation and returns metrics.
The calling script will be responsible for providing a method to compute metrics, as they are task-dependent
(pass it to the init `compute_metrics` argument).
You can also subclass and override this method to inject custom behavior.
Args:
eval_dataset (`Dataset`, *optional*):
Pass a dataset if you wish to override `self.eval_dataset`. If it is an [`~datasets.Dataset`], columns
not accepted by the `model.forward()` method are automatically removed. It must implement the `__len__`
method.
ignore_keys (`List[str]`, *optional*):
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions.
metric_key_prefix (`str`, *optional*, defaults to `"eval"`):
An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
"eval_bleu" if the prefix is `"eval"` (default)
max_length (`int`, *optional*):
The maximum target length to use when predicting with the generate method.
num_beams (`int`, *optional*):
Number of beams for beam search that will be used when predicting with the generate method. 1 means no
beam search.
gen_kwargs:
Additional `generate` specific kwargs.
Returns:
A dictionary containing the evaluation loss and the potential metrics computed from the predictions. The
dictionary also contains the epoch number which comes from the training state.
"""
gen_kwargs = gen_kwargs.copy()
# Use legacy argument setting if a) the option is not explicitly passed; and b) the argument is set in the
# training args
if (
gen_kwargs.get("max_length") is None
and gen_kwargs.get("max_new_tokens") is None
and self.args.generation_max_length is not None
):
gen_kwargs["max_length"] = self.args.generation_max_length
if gen_kwargs.get("num_beams") is None and self.args.generation_num_beams is not None:
gen_kwargs["num_beams"] = self.args.generation_num_beams
# We don't want to drop samples in general
self.gather_function = self.accelerator.gather
self._gen_kwargs = gen_kwargs
return super().evaluate(eval_dataset, ignore_keys=ignore_keys, metric_key_prefix=metric_key_prefix)
def predict(
self,
test_dataset: Dataset,
ignore_keys: Optional[List[str]] = None,
metric_key_prefix: str = "test",
**gen_kwargs,
) -> "PredictionOutput":
"""
Run prediction and returns predictions and potential metrics.
Depending on the dataset and your use case, your test dataset may contain labels. In that case, this method
will also return metrics, like in `evaluate()`.
Args:
test_dataset (`Dataset`):
Dataset to run the predictions on. If it is a [`~datasets.Dataset`], columns not accepted by the
`model.forward()` method are automatically removed. Has to implement the method `__len__`
ignore_keys (`List[str]`, *optional*):
A list of keys in the output of your model (if it is a dictionary) that should be ignored when
gathering predictions.
metric_key_prefix (`str`, *optional*, defaults to `"eval"`):
An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
"eval_bleu" if the prefix is `"eval"` (default)
max_length (`int`, *optional*):
The maximum target length to use when predicting with the generate method.
num_beams (`int`, *optional*):
Number of beams for beam search that will be used when predicting with the generate method. 1 means no
beam search.
gen_kwargs:
Additional `generate` specific kwargs.
<Tip>
If your predictions or labels have different sequence lengths (for instance because you're doing dynamic
padding in a token classification task) the predictions will be padded (on the right) to allow for
concatenation into one array. The padding index is -100.
</Tip>
Returns: *NamedTuple* A namedtuple with the following keys:
- predictions (`np.ndarray`): The predictions on `test_dataset`.
- label_ids (`np.ndarray`, *optional*): The labels (if the dataset contained some).
- metrics (`Dict[str, float]`, *optional*): The potential dictionary of metrics (if the dataset contained
labels).
"""
gen_kwargs = gen_kwargs.copy()
# Use legacy argument setting if a) the option is not explicitly passed; and b) the argument is set in the
# training args
if (
gen_kwargs.get("max_length") is None
and gen_kwargs.get("max_new_tokens") is None
and self.args.generation_max_length is not None
):
gen_kwargs["max_length"] = self.args.generation_max_length
if gen_kwargs.get("num_beams") is None and self.args.generation_num_beams is not None:
gen_kwargs["num_beams"] = self.args.generation_num_beams
self.gather_function = self.accelerator.gather
self._gen_kwargs = gen_kwargs
return super().predict(test_dataset, ignore_keys=ignore_keys, metric_key_prefix=metric_key_prefix)
def prediction_step(
self,
model: nn.Module,
inputs: Dict[str, Union[torch.Tensor, Any]],
prediction_loss_only: bool,
ignore_keys: Optional[List[str]] = None,
**gen_kwargs,
) -> Tuple[Optional[float], Optional[torch.Tensor], Optional[torch.Tensor]]:
"""
Perform an evaluation step on `model` using `inputs`.
Subclass and override to inject custom behavior.
Args:
model (`nn.Module`):
The model to evaluate.
inputs (`Dict[str, Union[torch.Tensor, Any]]`):
The inputs and targets of the model.
The dictionary will be unpacked before being fed to the model. Most models expect the targets under the
argument `labels`. Check your model's documentation for all accepted arguments.
prediction_loss_only (`bool`):
Whether or not to return the loss only.
gen_kwargs:
Additional `generate` specific kwargs.
Return:
Tuple[Optional[float], Optional[torch.Tensor], Optional[torch.Tensor]]: A tuple with the loss, logits and
labels (each being optional).
"""
if not self.args.predict_with_generate or prediction_loss_only:
return super().prediction_step(
model, inputs, prediction_loss_only=prediction_loss_only, ignore_keys=ignore_keys
)
has_labels = "labels" in inputs
inputs = self._prepare_inputs(inputs)
# Priority (handled in generate):
# non-`None` gen_kwargs > model.generation_config > default GenerationConfig()
if len(gen_kwargs) == 0 and hasattr(self, "_gen_kwargs"):
gen_kwargs = self._gen_kwargs.copy()
if "num_beams" in gen_kwargs and gen_kwargs["num_beams"] is None:
gen_kwargs.pop("num_beams")
if "max_length" in gen_kwargs and gen_kwargs["max_length"] is None:
gen_kwargs.pop("max_length")
default_synced_gpus = True if is_deepspeed_zero3_enabled() else False
gen_kwargs["synced_gpus"] = (
gen_kwargs["synced_gpus"] if gen_kwargs.get("synced_gpus") is not None else default_synced_gpus
)
generation_inputs = inputs.copy()
# If the `decoder_input_ids` was created from `labels`, evict the former, so that the model can freely generate
# (otherwise, it would continue generating from the padded `decoder_input_ids`)
if (
"labels" in generation_inputs
and "decoder_input_ids" in generation_inputs
and generation_inputs["labels"].shape == generation_inputs["decoder_input_ids"].shape
):
generation_inputs = {
k: v for k, v in inputs.items() if k not in ("decoder_input_ids", "decoder_attention_mask")
}
generated_tokens = self.model.generate(**generation_inputs, **gen_kwargs)
# Temporary hack to ensure the generation config is not initialized for each iteration of the evaluation loop
# TODO: remove this hack when the legacy code that initializes generation_config from a model config is
# removed in https://github.com/huggingface/transformers/blob/98d88b23f54e5a23e741833f1e973fdf600cc2c5/src/transformers/generation/utils.py#L1183
if self.model.generation_config._from_model_config:
self.model.generation_config._from_model_config = False
# Retrieves GenerationConfig from model.generation_config
gen_config = self.model.generation_config
# in case the batch is shorter than max length, the output should be padded
if generated_tokens.shape[-1] < gen_config.max_length:
generated_tokens = self._pad_tensors_to_max_len(generated_tokens, gen_config.max_length)
elif gen_config.max_new_tokens is not None and generated_tokens.shape[-1] < gen_config.max_new_tokens + 1:
generated_tokens = self._pad_tensors_to_max_len(generated_tokens, gen_config.max_new_tokens + 1)
with torch.no_grad():
if has_labels:
with self.compute_loss_context_manager():
outputs = model(**inputs)
if self.label_smoother is not None:
loss = self.label_smoother(outputs, inputs["labels"]).mean().detach()
else:
loss = (outputs["loss"] if isinstance(outputs, dict) else outputs[0]).mean().detach()
else:
loss = None
if self.args.prediction_loss_only:
return loss, None, None
if has_labels:
labels = inputs["labels"]
if labels.shape[-1] < gen_config.max_length:
labels = self._pad_tensors_to_max_len(labels, gen_config.max_length)
elif gen_config.max_new_tokens is not None and labels.shape[-1] < gen_config.max_new_tokens + 1:
labels = self._pad_tensors_to_max_len(labels, gen_config.max_new_tokens + 1)
else:
labels = None
return loss, generated_tokens, labels
def _pad_tensors_to_max_len(self, tensor, max_length):
if self.tokenizer is not None and hasattr(self.tokenizer, "pad_token_id"):
# If PAD token is not defined at least EOS token has to be defined
pad_token_id = (
self.tokenizer.pad_token_id if self.tokenizer.pad_token_id is not None else self.tokenizer.eos_token_id
)
else:
if self.model.config.pad_token_id is not None:
pad_token_id = self.model.config.pad_token_id
else:
raise ValueError("Pad_token_id must be set in the configuration of the model, in order to pad tensors")
padded_tensor = pad_token_id * torch.ones(
(tensor.shape[0], max_length), dtype=tensor.dtype, device=tensor.device
)
padded_tensor[:, : tensor.shape[-1]] = tensor
return padded_tensor
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/debug_utils.py | # Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import collections
from .utils import ExplicitEnum, is_torch_available, logging
if is_torch_available():
import torch
logger = logging.get_logger(__name__)
class DebugUnderflowOverflow:
"""
This debug class helps detect and understand where the model starts getting very large or very small, and more
importantly `nan` or `inf` weight and activation elements.
There are 2 working modes:
1. Underflow/overflow detection (default)
2. Specific batch absolute min/max tracing without detection
Mode 1: Underflow/overflow detection
To activate the underflow/overflow detection, initialize the object with the model :
```python
debug_overflow = DebugUnderflowOverflow(model)
```
then run the training as normal and if `nan` or `inf` gets detected in at least one of the weight, input or output
elements this module will throw an exception and will print `max_frames_to_save` frames that lead to this event,
each frame reporting
1. the fully qualified module name plus the class name whose `forward` was run
2. the absolute min and max value of all elements for each module weights, and the inputs and output
For example, here is the header and the last few frames in detection report for `google/mt5-small` run in fp16
mixed precision :
```
Detected inf/nan during batch_number=0
Last 21 forward frames:
abs min abs max metadata
[...]
encoder.block.2.layer.1.DenseReluDense.wi_0 Linear
2.17e-07 4.50e+00 weight
1.79e-06 4.65e+00 input[0]
2.68e-06 3.70e+01 output
encoder.block.2.layer.1.DenseReluDense.wi_1 Linear
8.08e-07 2.66e+01 weight
1.79e-06 4.65e+00 input[0]
1.27e-04 2.37e+02 output
encoder.block.2.layer.1.DenseReluDense.wo Linear
1.01e-06 6.44e+00 weight
0.00e+00 9.74e+03 input[0]
3.18e-04 6.27e+04 output
encoder.block.2.layer.1.DenseReluDense T5DenseGatedGeluDense
1.79e-06 4.65e+00 input[0]
3.18e-04 6.27e+04 output
encoder.block.2.layer.1.dropout Dropout
3.18e-04 6.27e+04 input[0]
0.00e+00 inf output
```
You can see here, that `T5DenseGatedGeluDense.forward` resulted in output activations, whose absolute max value was
around 62.7K, which is very close to fp16's top limit of 64K. In the next frame we have `Dropout` which
renormalizes the weights, after it zeroed some of the elements, which pushes the absolute max value to more than
64K, and we get an overlow.
As you can see it's the previous frames that we need to look into when the numbers start going into very large for
fp16 numbers.
The tracking is done in a forward hook, which gets invoked immediately after `forward` has completed.
By default the last 21 frames are printed. You can change the default to adjust for your needs. For example :
```python
debug_overflow = DebugUnderflowOverflow(model, max_frames_to_save=100)
```
To validate that you have set up this debugging feature correctly, and you intend to use it in a training that
may take hours to complete, first run it with normal tracing enabled for one of a few batches as explained in
the next section.
Mode 2. Specific batch absolute min/max tracing without detection
The second work mode is per-batch tracing with the underflow/overflow detection feature turned off.
Let's say you want to watch the absolute min and max values for all the ingredients of each `forward` call of a
given batch, and only do that for batches 1 and 3. Then you instantiate this class as :
```python
debug_overflow = DebugUnderflowOverflow(model, trace_batch_nums=[1, 3])
```
And now full batches 1 and 3 will be traced using the same format as explained above. Batches are 0-indexed.
This is helpful if you know that the program starts misbehaving after a certain batch number, so you can
fast-forward right to that area.
Early stopping:
You can also specify the batch number after which to stop the training, with :
```python
debug_overflow = DebugUnderflowOverflow(model, trace_batch_nums=[1, 3], abort_after_batch_num=3)
```
This feature is mainly useful in the tracing mode, but you can use it for any mode.
**Performance**:
As this module measures absolute `min`/``max` of each weight of the model on every forward it'll slow the training
down. Therefore remember to turn it off once the debugging needs have been met.
Args:
model (`nn.Module`):
The model to debug.
max_frames_to_save (`int`, *optional*, defaults to 21):
How many frames back to record
trace_batch_nums(`List[int]`, *optional*, defaults to `[]`):
Which batch numbers to trace (turns detection off)
abort_after_batch_num (`int``, *optional*):
Whether to abort after a certain batch number has finished
"""
def __init__(self, model, max_frames_to_save=21, trace_batch_nums=[], abort_after_batch_num=None):
self.model = model
self.trace_batch_nums = trace_batch_nums
self.abort_after_batch_num = abort_after_batch_num
# keep a LIFO buffer of frames to dump as soon as inf/nan is encountered to give context to the problem emergence
self.frames = collections.deque([], max_frames_to_save)
self.frame = []
self.batch_number = 0
self.total_calls = 0
self.detected_overflow = False
self.prefix = " "
self.analyse_model()
self.register_forward_hook()
def save_frame(self, frame=None):
if frame is not None:
self.expand_frame(frame)
self.frames.append("\n".join(self.frame))
self.frame = [] # start a new frame
def expand_frame(self, line):
self.frame.append(line)
def trace_frames(self):
print("\n".join(self.frames))
self.frames = []
def reset_saved_frames(self):
self.frames = []
def dump_saved_frames(self):
print(f"\nDetected inf/nan during batch_number={self.batch_number}")
print(f"Last {len(self.frames)} forward frames:")
print(f"{'abs min':8} {'abs max':8} metadata")
print("\n".join(self.frames))
print("\n\n")
self.frames = []
def analyse_model(self):
# extract the fully qualified module names, to be able to report at run time. e.g.:
# encoder.block.2.layer.0.SelfAttention.o
#
# for shared weights only the first shared module name will be registered
self.module_names = {m: name for name, m in self.model.named_modules()}
# self.longest_module_name = max(len(v) for v in self.module_names.values())
def analyse_variable(self, var, ctx):
if torch.is_tensor(var):
self.expand_frame(get_abs_min_max(var, ctx))
if detect_overflow(var, ctx):
self.detected_overflow = True
elif var is None:
self.expand_frame(f"{'None':>17} {ctx}")
else:
self.expand_frame(f"{'not a tensor':>17} {ctx}")
def batch_start_frame(self):
self.expand_frame(f"\n\n{self.prefix} *** Starting batch number={self.batch_number} ***")
self.expand_frame(f"{'abs min':8} {'abs max':8} metadata")
def batch_end_frame(self):
self.expand_frame(f"{self.prefix} *** Finished batch number={self.batch_number-1} ***\n\n")
def create_frame(self, module, input, output):
self.expand_frame(f"{self.prefix} {self.module_names[module]} {module.__class__.__name__}")
# params
for name, p in module.named_parameters(recurse=False):
self.analyse_variable(p, name)
# inputs
if isinstance(input, tuple):
for i, x in enumerate(input):
self.analyse_variable(x, f"input[{i}]")
else:
self.analyse_variable(input, "input")
# outputs
if isinstance(output, tuple):
for i, x in enumerate(output):
# possibly a tuple of tuples
if isinstance(x, tuple):
for j, y in enumerate(x):
self.analyse_variable(y, f"output[{i}][{j}]")
else:
self.analyse_variable(x, f"output[{i}]")
else:
self.analyse_variable(output, "output")
self.save_frame()
def register_forward_hook(self):
self.model.apply(self._register_forward_hook)
def _register_forward_hook(self, module):
module.register_forward_hook(self.forward_hook)
def forward_hook(self, module, input, output):
# - input is a tuple of packed inputs (could be non-Tensors)
# - output could be a Tensor or a tuple of Tensors and non-Tensors
last_frame_of_batch = False
trace_mode = True if self.batch_number in self.trace_batch_nums else False
if trace_mode:
self.reset_saved_frames()
if self.total_calls == 0:
self.batch_start_frame()
self.total_calls += 1
# count batch numbers - the very first forward hook of the batch will be called when the
# batch completes - i.e. it gets called very last - we know this batch has finished
if module == self.model:
self.batch_number += 1
last_frame_of_batch = True
self.create_frame(module, input, output)
# if last_frame_of_batch:
# self.batch_end_frame()
if trace_mode:
self.trace_frames()
if last_frame_of_batch:
self.batch_start_frame()
if self.detected_overflow and not trace_mode:
self.dump_saved_frames()
# now we can abort, as it's pointless to continue running
raise ValueError(
"DebugUnderflowOverflow: inf/nan detected, aborting as there is no point running further. "
"Please scroll up above this traceback to see the activation values prior to this event."
)
# abort after certain batch if requested to do so
if self.abort_after_batch_num is not None and self.batch_number > self.abort_after_batch_num:
raise ValueError(
f"DebugUnderflowOverflow: aborting after {self.batch_number} batches due to"
f" `abort_after_batch_num={self.abort_after_batch_num}` arg"
)
def get_abs_min_max(var, ctx):
abs_var = var.abs()
return f"{abs_var.min():8.2e} {abs_var.max():8.2e} {ctx}"
def detect_overflow(var, ctx):
"""
Report whether the tensor contains any `nan` or `inf` entries.
This is useful for detecting overflows/underflows and best to call right after the function that did some math that
modified the tensor in question.
This function contains a few other helper features that you can enable and tweak directly if you want to track
various other things.
Args:
var: the tensor variable to check
ctx: the message to print as a context
Return:
`True` if `inf` or `nan` was detected, `False` otherwise
"""
detected = False
if torch.isnan(var).any().item():
detected = True
print(f"{ctx} has nans")
if torch.isinf(var).any().item():
detected = True
print(f"{ctx} has infs")
# if needed to monitor large elements can enable the following
if 0: # and detected:
n100 = var[torch.ge(var.abs(), 100)]
if n100.numel() > 0:
print(f"{ctx}: n100={n100.numel()}")
n1000 = var[torch.ge(var.abs(), 1000)]
if n1000.numel() > 0:
print(f"{ctx}: n1000={n1000.numel()}")
n10000 = var[torch.ge(var.abs(), 10000)]
if n10000.numel() > 0:
print(f"{ctx}: n10000={n10000.numel()}")
if 0:
print(f"min={var.min():9.2e} max={var.max():9.2e}")
if 0:
print(f"min={var.min():9.2e} max={var.max():9.2e} var={var.var():9.2e} mean={var.mean():9.2e} ({ctx})")
return detected
class DebugOption(ExplicitEnum):
UNDERFLOW_OVERFLOW = "underflow_overflow"
TPU_METRICS_DEBUG = "tpu_metrics_debug"
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/cache_utils.py | from dataclasses import dataclass
from typing import Any, Dict, List, Optional, Tuple
import torch
from .configuration_utils import PretrainedConfig
from .utils import logging
logger = logging.get_logger(__name__)
@dataclass
class Cache:
"""
Base, abstract class for all caches. The actual data structure is specific to each subclass.
"""
def update(
self,
key_states: torch.Tensor,
value_states: torch.Tensor,
layer_idx: int,
cache_kwargs: Optional[Dict[str, Any]] = None,
) -> Tuple[torch.Tensor, torch.Tensor]:
"""
Updates the cache with the new `key_states` and `value_states` for the layer `layer_idx`.
Parameters:
key_states (`torch.Tensor`):
The new key states to cache.
value_states (`torch.Tensor`):
The new value states to cache.
layer_idx (`int`):
The index of the layer to cache the states for.
cache_kwargs (`Dict[str, Any]`, `optional`):
Additional arguments for the cache subclass. These are specific to each subclass and allow new types of
cache to be created.
Return:
A tuple containing the updated key and value states.
"""
raise NotImplementedError("Make sure to implement `update` in a subclass.")
def get_seq_length(self, layer_idx: Optional[int] = 0) -> int:
"""Returns the sequence length of the cached states. A layer index can be optionally passed."""
# TODO: deprecate this function in favor of `cache_position`
raise NotImplementedError("Make sure to implement `get_seq_length` in a subclass.")
def get_max_length(self) -> Optional[int]:
"""Returns the maximum sequence length of the cached states, if there is any."""
raise NotImplementedError("Make sure to implement `get_max_length` in a subclass.")
def get_usable_length(self, new_seq_length: int, layer_idx: Optional[int] = 0) -> int:
"""Given the sequence length of the new inputs, returns the usable length of the cache."""
# Cache without size limit -> all cache is usable
# Cache with size limit -> if the length cache plus the length of the new inputs is larger the maximum cache
# length, we will need to evict part of the cache (and thus not all cache is usable)
max_length = self.get_max_length()
previous_seq_length = self.get_seq_length(layer_idx)
if max_length is not None and previous_seq_length + new_seq_length > max_length:
return max_length - new_seq_length
return previous_seq_length
def reorder_cache(self, beam_idx: torch.LongTensor):
"""Reorders the cache for beam search, given the selected beam indices."""
for layer_idx in range(len(self.key_cache)):
device = self.key_cache[layer_idx].device
self.key_cache[layer_idx] = self.key_cache[layer_idx].index_select(0, beam_idx.to(device))
device = self.value_cache[layer_idx].device
self.value_cache[layer_idx] = self.value_cache[layer_idx].index_select(0, beam_idx.to(device))
@property
def seen_tokens(self):
logger.warning_once(
"The `seen_tokens` attribute is deprecated and will be removed in v4.41. Use the `cache_position` "
"model input instead."
)
if hasattr(self, "_seen_tokens"):
return self._seen_tokens
else:
return None
class DynamicCache(Cache):
"""
A cache that grows dynamically as more tokens are generated. This is the default for generative models.
It stores the Key and Value states as a list of tensors, one for each layer. The expected shape for each tensor is
`[batch_size, num_heads, seq_len, head_dim]`.
"""
def __init__(self) -> None:
self.key_cache: List[torch.Tensor] = []
self.value_cache: List[torch.Tensor] = []
self._seen_tokens = 0 # Used in `generate` to keep tally of how many tokens the cache has seen
def __getitem__(self, layer_idx: int) -> List[Tuple[torch.Tensor]]:
"""
Support for backwards-compatible `past_key_value` indexing, e.g. `past_key_value[0][0].shape[2]` to get the
sequence length.
"""
if layer_idx < len(self):
return (self.key_cache[layer_idx], self.value_cache[layer_idx])
else:
raise KeyError(f"Cache only has {len(self)} layers, attempted to access layer with index {layer_idx}")
def __iter__(self):
"""
Support for backwards-compatible `past_key_value` iteration, e.g. `for x in past_key_value:` to iterate over
keys and values
"""
for layer_idx in range(len(self)):
yield (self.key_cache[layer_idx], self.value_cache[layer_idx])
def __len__(self):
"""
Support for backwards-compatible `past_key_value` length, e.g. `len(past_key_value)`. This value corresponds
to the number of layers in the model.
"""
return len(self.key_cache)
def update(
self,
key_states: torch.Tensor,
value_states: torch.Tensor,
layer_idx: int,
cache_kwargs: Optional[Dict[str, Any]] = None,
) -> Tuple[torch.Tensor, torch.Tensor]:
"""
Updates the cache with the new `key_states` and `value_states` for the layer `layer_idx`.
Parameters:
key_states (`torch.Tensor`):
The new key states to cache.
value_states (`torch.Tensor`):
The new value states to cache.
layer_idx (`int`):
The index of the layer to cache the states for.
cache_kwargs (`Dict[str, Any]`, `optional`):
Additional arguments for the cache subclass. No additional arguments are used in `DynamicCache`.
Return:
A tuple containing the updated key and value states.
"""
# Update the number of seen tokens
if layer_idx == 0:
self._seen_tokens += key_states.shape[-2]
# Update the cache
if len(self.key_cache) <= layer_idx:
self.key_cache.append(key_states)
self.value_cache.append(value_states)
else:
self.key_cache[layer_idx] = torch.cat([self.key_cache[layer_idx], key_states], dim=-2)
self.value_cache[layer_idx] = torch.cat([self.value_cache[layer_idx], value_states], dim=-2)
return self.key_cache[layer_idx], self.value_cache[layer_idx]
def get_seq_length(self, layer_idx: Optional[int] = 0) -> int:
"""Returns the sequence length of the cached states. A layer index can be optionally passed."""
# TODO: deprecate this function in favor of `cache_position`
if len(self.key_cache) <= layer_idx:
return 0
return self.key_cache[layer_idx].shape[-2]
def get_max_length(self) -> Optional[int]:
"""Returns the maximum sequence length of the cached states. DynamicCache does not have a maximum length."""
return None
def to_legacy_cache(self) -> Tuple[Tuple[torch.Tensor], Tuple[torch.Tensor]]:
"""Converts the `DynamicCache` instance into the its equivalent in the legacy cache format."""
legacy_cache = ()
for layer_idx in range(len(self)):
legacy_cache += ((self.key_cache[layer_idx], self.value_cache[layer_idx]),)
return legacy_cache
@classmethod
def from_legacy_cache(cls, past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None) -> "DynamicCache":
"""Converts a cache in the legacy cache format into an equivalent `DynamicCache`."""
cache = cls()
if past_key_values is not None:
for layer_idx in range(len(past_key_values)):
key_states, value_states = past_key_values[layer_idx]
cache.update(key_states, value_states, layer_idx)
return cache
class SinkCache(Cache):
"""
A cache that as described in the [Attention Sinks paper](https://arxiv.org/abs/2309.17453). It allows the model to
generate beyond the length of its context window, without losing fluency in the conversation. As it discards past
tokens, the model will lose the ability to generate tokens that depend on the context that was discarded.
It stores the Key and Value states as a list of tensors, one for each layer. The expected shape for each tensor is
`[batch_size, num_heads, seq_len, head_dim]`.
Parameters:
window_length (`int`):
The length of the context window.
num_sink_tokens (`int`):
The number of sink tokens. See the original paper for more information.
"""
def __init__(self, window_length: int, num_sink_tokens: int) -> None:
self.key_cache: List[torch.Tensor] = []
self.value_cache: List[torch.Tensor] = []
self.window_length = window_length
self.num_sink_tokens = num_sink_tokens
self.cos_sin_rerotation_cache = {}
self._cos_cache = None
self._sin_cache = None
self._seen_tokens = 0 # Used in `generate` to keep tally of how many tokens the cache has seen
@staticmethod
def _rotate_half(x):
x1 = x[..., : x.shape[-1] // 2]
x2 = x[..., x.shape[-1] // 2 :]
return torch.cat((-x2, x1), dim=-1)
def _apply_key_rotary_pos_emb(
self, key_states: torch.Tensor, cos: torch.Tensor, sin: torch.Tensor
) -> torch.Tensor:
rotated_key_states = (key_states * cos) + (self._rotate_half(key_states) * sin)
return rotated_key_states
def _get_rerotation_cos_sin(
self, key_states: torch.Tensor, cos: torch.Tensor, sin: torch.Tensor
) -> Tuple[torch.Tensor, torch.Tensor]:
if key_states.shape[-2] not in self.cos_sin_rerotation_cache:
# Upcast to float32 temporarily for better accuracy
cos = cos.to(torch.float32)
sin = sin.to(torch.float32)
# Compute the cos and sin required for back- and forward-rotating to one position earlier in the sequence
original_cos = cos[self.num_sink_tokens + key_states.shape[-2] :]
shifted_cos = cos[self.num_sink_tokens : -key_states.shape[-2]]
original_sin = sin[self.num_sink_tokens + key_states.shape[-2] :]
shifted_sin = sin[self.num_sink_tokens : -key_states.shape[-2]]
rerotation_cos = original_cos * shifted_cos + original_sin * shifted_sin
rerotation_sin = -original_sin * shifted_cos + original_cos * shifted_sin
self.cos_sin_rerotation_cache[key_states.shape[-2]] = (
rerotation_cos.to(key_states.dtype).unsqueeze(0),
rerotation_sin.to(key_states.dtype).unsqueeze(0),
)
return self.cos_sin_rerotation_cache[key_states.shape[-2]]
def get_seq_length(self, layer_idx: Optional[int] = 0) -> int:
"""Returns the sequence length of the cached states. A layer index can be optionally passed."""
# TODO: deprecate this function in favor of `cache_position`
# Workaround to make 'key_states.shape[-2] + past_key_value.get_seq_length(self.layer_idx)' <= window_length
if len(self.key_cache) <= layer_idx:
return 0
return self.key_cache[layer_idx].shape[-2]
def get_max_length(self) -> Optional[int]:
"""Returns the maximum sequence length of the cached states."""
return self.window_length
def update(
self,
key_states: torch.Tensor,
value_states: torch.Tensor,
layer_idx: int,
cache_kwargs: Optional[Dict[str, Any]] = None,
) -> Tuple[torch.Tensor, torch.Tensor]:
"""
Updates the cache with the new `key_states` and `value_states` for the layer `layer_idx`.
Parameters:
key_states (`torch.Tensor`):
The new key states to cache.
value_states (`torch.Tensor`):
The new value states to cache.
layer_idx (`int`):
The index of the layer to cache the states for.
cache_kwargs (`Dict[str, Any]`, `optional`):
Additional arguments for the cache subclass. The following arguments can be used in `SinkCache`: `sin`,
`cos` and `partial_rotation_size`. These arguments are used with models using RoPE, to recompute the
rotation as the tokens are shifted.
Return:
A tuple containing the updated key and value states.
"""
# Optional kwargs for `SinkCache` -- needed on models using RoPE. `partial_rotation_size` is used on models
# with partially rotated position embeddings, like Phi or Persimmon.
sin = cache_kwargs.get("sin")
cos = cache_kwargs.get("cos")
partial_rotation_size = cache_kwargs.get("partial_rotation_size")
using_rope = cos is not None and sin is not None
# Update the number of seen tokens
if layer_idx == 0:
self._seen_tokens += key_states.shape[-2]
# Update the sin/cos cache, which holds sin/cos values for all possible positions
if using_rope and layer_idx == 0:
# BC: some models still pass `sin`/`cos` with 2 dims. In those models, they are the full sin/cos. Remove
# after all RoPE models have a llama-like cache utilization.
if cos.dim() == 2:
self._cos_cache = cos
self._sin_cache = sin
else:
if self._cos_cache is None:
self._cos_cache = cos[0, ...]
self._sin_cache = sin[0, ...]
elif self._cos_cache.shape[0] < self.window_length:
self._cos_cache = torch.cat([self._cos_cache, cos[0, ...]], dim=0)
self._sin_cache = torch.cat([self._sin_cache, sin[0, ...]], dim=0)
# [bsz, num_heads, seq_len, head_dim]
if len(self.key_cache) <= layer_idx:
# Empty cache
self.key_cache.append(key_states)
self.value_cache.append(value_states)
elif key_states.shape[-2] + self.get_seq_length(layer_idx) < self.window_length:
# Growing cache
self.key_cache[layer_idx] = torch.cat([self.key_cache[layer_idx], key_states], dim=-2)
self.value_cache[layer_idx] = torch.cat([self.value_cache[layer_idx], value_states], dim=-2)
else:
# Shifting cache
keys_to_keep = self.key_cache[layer_idx][
:, :, -self.window_length + self.num_sink_tokens + key_states.shape[-2] :
]
# On RoPE models, we need to recompute the Key rotation as the tokens are shifted
if using_rope:
rerotation_cos, rerotation_sin = self._get_rerotation_cos_sin(
key_states, self._cos_cache[: self.window_length], self._sin_cache[: self.window_length]
)
if partial_rotation_size is not None:
keys_to_keep, keys_pass = (
keys_to_keep[..., :partial_rotation_size],
keys_to_keep[..., partial_rotation_size:],
)
keys_to_keep = self._apply_key_rotary_pos_emb(keys_to_keep, rerotation_cos, rerotation_sin)
if partial_rotation_size is not None:
keys_to_keep = torch.cat((keys_to_keep, keys_pass), dim=-1)
# Concatenate sink tokens, shifted & rotated tokens (if needed), and new tokens
sink_keys = self.key_cache[layer_idx][:, :, : self.num_sink_tokens]
self.key_cache[layer_idx] = torch.cat([sink_keys, keys_to_keep, key_states], dim=-2)
sink_values = self.value_cache[layer_idx][:, :, : self.num_sink_tokens]
values_to_keep = self.value_cache[layer_idx][
:, :, -self.window_length + self.num_sink_tokens + value_states.shape[-2] :
]
self.value_cache[layer_idx] = torch.cat([sink_values, values_to_keep, value_states], dim=-2)
return self.key_cache[layer_idx], self.value_cache[layer_idx]
class StaticCache(Cache):
"""
Static Cache class to be used with `torch.compile(model)`.
Parameters:
config (`PretrainedConfig):
The configuration file defining the shape-related attributes required to initialize the static cache.
max_batch_size (`int`):
The maximum batch size with which the model will be used.
max_cache_len (`int`):
The maximum sequence length with which the model will be used.
device (`torch.device`):
The device on which the cache should be initialized. Should be the same as the layer.
dtype (*optional*, defaults to `torch.float32`):
The default `dtype` to use when initializing the layer.
"""
def __init__(self, config: PretrainedConfig, max_batch_size: int, max_cache_len: int, device, dtype=None) -> None:
super().__init__()
self.max_batch_size = max_batch_size
self.max_cache_len = config.max_position_embeddings if max_cache_len is None else max_cache_len
# Some model define a custom `head_dim` != config.hidden_size // config.num_attention_heads
self.head_dim = (
config.head_dim if hasattr(config, "head_dim") else config.hidden_size // config.num_attention_heads
)
self.dtype = dtype if dtype is not None else torch.float32
self.num_key_value_heads = (
config.num_attention_heads if config.num_key_value_heads is None else config.num_key_value_heads
)
self.key_cache: List[torch.Tensor] = []
self.value_cache: List[torch.Tensor] = []
cache_shape = (max_batch_size, self.num_key_value_heads, self.max_cache_len, self.head_dim)
for _ in range(config.num_hidden_layers):
# Note: `mark_static_address` is used to tag the cache as an fixed data pointer, preventing cuda graph
# breaks when updating the cache.
new_layer_key_cache = torch.zeros(cache_shape, dtype=self.dtype, device=device)
new_layer_value_cache = torch.zeros(cache_shape, dtype=self.dtype, device=device)
torch._dynamo.mark_static_address(new_layer_key_cache)
torch._dynamo.mark_static_address(new_layer_value_cache)
self.key_cache.append(new_layer_key_cache)
self.value_cache.append(new_layer_value_cache)
def update(
self,
key_states: torch.Tensor,
value_states: torch.Tensor,
layer_idx: int,
cache_kwargs: Optional[Dict[str, Any]] = None,
) -> Tuple[torch.Tensor, torch.Tensor]:
"""
Updates the cache with the new `key_states` and `value_states` for the layer `layer_idx`.
It is VERY important to index using a tensor, otherwise you introduce a copy to the device.
Parameters:
key_states (`torch.Tensor`):
The new key states to cache.
value_states (`torch.Tensor`):
The new value states to cache.
layer_idx (`int`):
The index of the layer to cache the states for.
cache_kwargs (`Dict[str, Any]`, `optional`):
Additional arguments for the cache subclass. The `StaticCache` needs the `cache_position` input
to know how where to write in the cache.
Return:
A tuple containing the updated key and value states.
"""
cache_position = cache_kwargs.get("cache_position")
k_out = self.key_cache[layer_idx]
v_out = self.value_cache[layer_idx]
k_out[:, :, cache_position] = key_states
v_out[:, :, cache_position] = value_states
return k_out, v_out
def get_seq_length(self, layer_idx: Optional[int] = 0) -> int:
"""Returns the sequence length of the cached states that were seen by the model."""
# Occupied cache == any slot in the 3rd dim (sequence length) holds a non-zero value. To save on compute, let's
# limit the check to the first batch member and head dimension.
# TODO: deprecate this function in favor of `cache_position`
return (self.key_cache[layer_idx][0, 0].any(dim=-1)).sum()
def get_max_length(self) -> Optional[int]:
"""Returns the maximum sequence length of the cached states."""
return self.max_cache_len
def reset(self):
"""Resets the cache values while preserving the objects"""
for layer_idx in range(len(self.key_cache)):
# In-place ops prevent breaking the static address
self.key_cache[layer_idx].zero_()
self.value_cache[layer_idx].zero_()
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/dynamic_module_utils.py | # coding=utf-8
# Copyright 2021 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Utilities to dynamically load objects from the Hub."""
import filecmp
import importlib
import importlib.util
import os
import re
import shutil
import signal
import sys
import typing
import warnings
from pathlib import Path
from typing import Any, Dict, List, Optional, Union
from huggingface_hub import try_to_load_from_cache
from .utils import (
HF_MODULES_CACHE,
TRANSFORMERS_DYNAMIC_MODULE_NAME,
cached_file,
extract_commit_hash,
is_offline_mode,
logging,
)
logger = logging.get_logger(__name__) # pylint: disable=invalid-name
def init_hf_modules():
"""
Creates the cache directory for modules with an init, and adds it to the Python path.
"""
# This function has already been executed if HF_MODULES_CACHE already is in the Python path.
if HF_MODULES_CACHE in sys.path:
return
sys.path.append(HF_MODULES_CACHE)
os.makedirs(HF_MODULES_CACHE, exist_ok=True)
init_path = Path(HF_MODULES_CACHE) / "__init__.py"
if not init_path.exists():
init_path.touch()
importlib.invalidate_caches()
def create_dynamic_module(name: Union[str, os.PathLike]):
"""
Creates a dynamic module in the cache directory for modules.
Args:
name (`str` or `os.PathLike`):
The name of the dynamic module to create.
"""
init_hf_modules()
dynamic_module_path = (Path(HF_MODULES_CACHE) / name).resolve()
# If the parent module does not exist yet, recursively create it.
if not dynamic_module_path.parent.exists():
create_dynamic_module(dynamic_module_path.parent)
os.makedirs(dynamic_module_path, exist_ok=True)
init_path = dynamic_module_path / "__init__.py"
if not init_path.exists():
init_path.touch()
# It is extremely important to invalidate the cache when we change stuff in those modules, or users end up
# with errors about module that do not exist. Same for all other `invalidate_caches` in this file.
importlib.invalidate_caches()
def get_relative_imports(module_file: Union[str, os.PathLike]) -> List[str]:
"""
Get the list of modules that are relatively imported in a module file.
Args:
module_file (`str` or `os.PathLike`): The module file to inspect.
Returns:
`List[str]`: The list of relative imports in the module.
"""
with open(module_file, "r", encoding="utf-8") as f:
content = f.read()
# Imports of the form `import .xxx`
relative_imports = re.findall(r"^\s*import\s+\.(\S+)\s*$", content, flags=re.MULTILINE)
# Imports of the form `from .xxx import yyy`
relative_imports += re.findall(r"^\s*from\s+\.(\S+)\s+import", content, flags=re.MULTILINE)
# Unique-ify
return list(set(relative_imports))
def get_relative_import_files(module_file: Union[str, os.PathLike]) -> List[str]:
"""
Get the list of all files that are needed for a given module. Note that this function recurses through the relative
imports (if a imports b and b imports c, it will return module files for b and c).
Args:
module_file (`str` or `os.PathLike`): The module file to inspect.
Returns:
`List[str]`: The list of all relative imports a given module needs (recursively), which will give us the list
of module files a given module needs.
"""
no_change = False
files_to_check = [module_file]
all_relative_imports = []
# Let's recurse through all relative imports
while not no_change:
new_imports = []
for f in files_to_check:
new_imports.extend(get_relative_imports(f))
module_path = Path(module_file).parent
new_import_files = [str(module_path / m) for m in new_imports]
new_import_files = [f for f in new_import_files if f not in all_relative_imports]
files_to_check = [f"{f}.py" for f in new_import_files]
no_change = len(new_import_files) == 0
all_relative_imports.extend(files_to_check)
return all_relative_imports
def get_imports(filename: Union[str, os.PathLike]) -> List[str]:
"""
Extracts all the libraries (not relative imports this time) that are imported in a file.
Args:
filename (`str` or `os.PathLike`): The module file to inspect.
Returns:
`List[str]`: The list of all packages required to use the input module.
"""
with open(filename, "r", encoding="utf-8") as f:
content = f.read()
# filter out try/except block so in custom code we can have try/except imports
content = re.sub(r"\s*try\s*:\s*.*?\s*except\s*.*?:", "", content, flags=re.MULTILINE | re.DOTALL)
# Imports of the form `import xxx`
imports = re.findall(r"^\s*import\s+(\S+)\s*$", content, flags=re.MULTILINE)
# Imports of the form `from xxx import yyy`
imports += re.findall(r"^\s*from\s+(\S+)\s+import", content, flags=re.MULTILINE)
# Only keep the top-level module
imports = [imp.split(".")[0] for imp in imports if not imp.startswith(".")]
return list(set(imports))
def check_imports(filename: Union[str, os.PathLike]) -> List[str]:
"""
Check if the current Python environment contains all the libraries that are imported in a file. Will raise if a
library is missing.
Args:
filename (`str` or `os.PathLike`): The module file to check.
Returns:
`List[str]`: The list of relative imports in the file.
"""
imports = get_imports(filename)
missing_packages = []
for imp in imports:
try:
importlib.import_module(imp)
except ImportError:
missing_packages.append(imp)
if len(missing_packages) > 0:
raise ImportError(
"This modeling file requires the following packages that were not found in your environment: "
f"{', '.join(missing_packages)}. Run `pip install {' '.join(missing_packages)}`"
)
return get_relative_imports(filename)
def get_class_in_module(class_name: str, module_path: Union[str, os.PathLike]) -> typing.Type:
"""
Import a module on the cache directory for modules and extract a class from it.
Args:
class_name (`str`): The name of the class to import.
module_path (`str` or `os.PathLike`): The path to the module to import.
Returns:
`typing.Type`: The class looked for.
"""
name = os.path.normpath(module_path).rstrip(".py").replace(os.path.sep, ".")
module_spec = importlib.util.spec_from_file_location(name, location=Path(HF_MODULES_CACHE) / module_path)
module = sys.modules.get(name)
if module is None:
module = importlib.util.module_from_spec(module_spec)
# insert it into sys.modules before any loading begins
sys.modules[name] = module
# reload in both cases
module_spec.loader.exec_module(module)
return getattr(module, class_name)
def get_cached_module_file(
pretrained_model_name_or_path: Union[str, os.PathLike],
module_file: str,
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
resume_download: bool = False,
proxies: Optional[Dict[str, str]] = None,
token: Optional[Union[bool, str]] = None,
revision: Optional[str] = None,
local_files_only: bool = False,
repo_type: Optional[str] = None,
_commit_hash: Optional[str] = None,
**deprecated_kwargs,
) -> str:
"""
Prepares Downloads a module from a local folder or a distant repo and returns its path inside the cached
Transformers module.
Args:
pretrained_model_name_or_path (`str` or `os.PathLike`):
This can be either:
- a string, the *model id* of a pretrained model configuration hosted inside a model repo on
huggingface.co.
- a path to a *directory* containing a configuration file saved using the
[`~PreTrainedTokenizer.save_pretrained`] method, e.g., `./my_model_directory/`.
module_file (`str`):
The name of the module file containing the class to look for.
cache_dir (`str` or `os.PathLike`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the standard
cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force to (re-)download the configuration files and override the cached versions if they
exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received file. Attempts to resume the download if such a file exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request.
token (`str` or *bool*, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated
when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
local_files_only (`bool`, *optional*, defaults to `False`):
If `True`, will only try to load the tokenizer configuration from local files.
repo_type (`str`, *optional*):
Specify the repo type (useful when downloading from a space for instance).
<Tip>
Passing `token=True` is required when you want to use a private model.
</Tip>
Returns:
`str`: The path to the module inside the cache.
"""
use_auth_token = deprecated_kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
token = use_auth_token
if is_offline_mode() and not local_files_only:
logger.info("Offline mode: forcing local_files_only=True")
local_files_only = True
# Download and cache module_file from the repo `pretrained_model_name_or_path` of grab it if it's a local file.
pretrained_model_name_or_path = str(pretrained_model_name_or_path)
is_local = os.path.isdir(pretrained_model_name_or_path)
if is_local:
submodule = os.path.basename(pretrained_model_name_or_path)
else:
submodule = pretrained_model_name_or_path.replace("/", os.path.sep)
cached_module = try_to_load_from_cache(
pretrained_model_name_or_path, module_file, cache_dir=cache_dir, revision=_commit_hash, repo_type=repo_type
)
new_files = []
try:
# Load from URL or cache if already cached
resolved_module_file = cached_file(
pretrained_model_name_or_path,
module_file,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies,
resume_download=resume_download,
local_files_only=local_files_only,
token=token,
revision=revision,
repo_type=repo_type,
_commit_hash=_commit_hash,
)
if not is_local and cached_module != resolved_module_file:
new_files.append(module_file)
except EnvironmentError:
logger.error(f"Could not locate the {module_file} inside {pretrained_model_name_or_path}.")
raise
# Check we have all the requirements in our environment
modules_needed = check_imports(resolved_module_file)
# Now we move the module inside our cached dynamic modules.
full_submodule = TRANSFORMERS_DYNAMIC_MODULE_NAME + os.path.sep + submodule
create_dynamic_module(full_submodule)
submodule_path = Path(HF_MODULES_CACHE) / full_submodule
if submodule == os.path.basename(pretrained_model_name_or_path):
# We copy local files to avoid putting too many folders in sys.path. This copy is done when the file is new or
# has changed since last copy.
if not (submodule_path / module_file).exists() or not filecmp.cmp(
resolved_module_file, str(submodule_path / module_file)
):
shutil.copy(resolved_module_file, submodule_path / module_file)
importlib.invalidate_caches()
for module_needed in modules_needed:
module_needed = f"{module_needed}.py"
module_needed_file = os.path.join(pretrained_model_name_or_path, module_needed)
if not (submodule_path / module_needed).exists() or not filecmp.cmp(
module_needed_file, str(submodule_path / module_needed)
):
shutil.copy(module_needed_file, submodule_path / module_needed)
importlib.invalidate_caches()
else:
# Get the commit hash
commit_hash = extract_commit_hash(resolved_module_file, _commit_hash)
# The module file will end up being placed in a subfolder with the git hash of the repo. This way we get the
# benefit of versioning.
submodule_path = submodule_path / commit_hash
full_submodule = full_submodule + os.path.sep + commit_hash
create_dynamic_module(full_submodule)
if not (submodule_path / module_file).exists():
shutil.copy(resolved_module_file, submodule_path / module_file)
importlib.invalidate_caches()
# Make sure we also have every file with relative
for module_needed in modules_needed:
if not (submodule_path / f"{module_needed}.py").exists():
get_cached_module_file(
pretrained_model_name_or_path,
f"{module_needed}.py",
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
token=token,
revision=revision,
local_files_only=local_files_only,
_commit_hash=commit_hash,
)
new_files.append(f"{module_needed}.py")
if len(new_files) > 0 and revision is None:
new_files = "\n".join([f"- {f}" for f in new_files])
repo_type_str = "" if repo_type is None else f"{repo_type}s/"
url = f"https://huggingface.co/{repo_type_str}{pretrained_model_name_or_path}"
logger.warning(
f"A new version of the following files was downloaded from {url}:\n{new_files}"
"\n. Make sure to double-check they do not contain any added malicious code. To avoid downloading new "
"versions of the code file, you can pin a revision."
)
return os.path.join(full_submodule, module_file)
def get_class_from_dynamic_module(
class_reference: str,
pretrained_model_name_or_path: Union[str, os.PathLike],
cache_dir: Optional[Union[str, os.PathLike]] = None,
force_download: bool = False,
resume_download: bool = False,
proxies: Optional[Dict[str, str]] = None,
token: Optional[Union[bool, str]] = None,
revision: Optional[str] = None,
local_files_only: bool = False,
repo_type: Optional[str] = None,
code_revision: Optional[str] = None,
**kwargs,
) -> typing.Type:
"""
Extracts a class from a module file, present in the local folder or repository of a model.
<Tip warning={true}>
Calling this function will execute the code in the module file found locally or downloaded from the Hub. It should
therefore only be called on trusted repos.
</Tip>
Args:
class_reference (`str`):
The full name of the class to load, including its module and optionally its repo.
pretrained_model_name_or_path (`str` or `os.PathLike`):
This can be either:
- a string, the *model id* of a pretrained model configuration hosted inside a model repo on
huggingface.co.
- a path to a *directory* containing a configuration file saved using the
[`~PreTrainedTokenizer.save_pretrained`] method, e.g., `./my_model_directory/`.
This is used when `class_reference` does not specify another repo.
module_file (`str`):
The name of the module file containing the class to look for.
class_name (`str`):
The name of the class to import in the module.
cache_dir (`str` or `os.PathLike`, *optional*):
Path to a directory in which a downloaded pretrained model configuration should be cached if the standard
cache should not be used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force to (re-)download the configuration files and override the cached versions if they
exist.
resume_download (`bool`, *optional*, defaults to `False`):
Whether or not to delete incompletely received file. Attempts to resume the download if such a file exists.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request.
token (`str` or `bool`, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated
when running `huggingface-cli login` (stored in `~/.huggingface`).
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any
identifier allowed by git.
local_files_only (`bool`, *optional*, defaults to `False`):
If `True`, will only try to load the tokenizer configuration from local files.
repo_type (`str`, *optional*):
Specify the repo type (useful when downloading from a space for instance).
code_revision (`str`, *optional*, defaults to `"main"`):
The specific revision to use for the code on the Hub, if the code leaves in a different repository than the
rest of the model. It can be a branch name, a tag name, or a commit id, since we use a git-based system for
storing models and other artifacts on huggingface.co, so `revision` can be any identifier allowed by git.
<Tip>
Passing `token=True` is required when you want to use a private model.
</Tip>
Returns:
`typing.Type`: The class, dynamically imported from the module.
Examples:
```python
# Download module `modeling.py` from huggingface.co and cache then extract the class `MyBertModel` from this
# module.
cls = get_class_from_dynamic_module("modeling.MyBertModel", "sgugger/my-bert-model")
# Download module `modeling.py` from a given repo and cache then extract the class `MyBertModel` from this
# module.
cls = get_class_from_dynamic_module("sgugger/my-bert-model--modeling.MyBertModel", "sgugger/another-bert-model")
```"""
use_auth_token = kwargs.pop("use_auth_token", None)
if use_auth_token is not None:
warnings.warn(
"The `use_auth_token` argument is deprecated and will be removed in v5 of Transformers. Please use `token` instead.",
FutureWarning,
)
if token is not None:
raise ValueError("`token` and `use_auth_token` are both specified. Please set only the argument `token`.")
token = use_auth_token
# Catch the name of the repo if it's specified in `class_reference`
if "--" in class_reference:
repo_id, class_reference = class_reference.split("--")
else:
repo_id = pretrained_model_name_or_path
module_file, class_name = class_reference.split(".")
if code_revision is None and pretrained_model_name_or_path == repo_id:
code_revision = revision
# And lastly we get the class inside our newly created module
final_module = get_cached_module_file(
repo_id,
module_file + ".py",
cache_dir=cache_dir,
force_download=force_download,
resume_download=resume_download,
proxies=proxies,
token=token,
revision=code_revision,
local_files_only=local_files_only,
repo_type=repo_type,
)
return get_class_in_module(class_name, final_module)
def custom_object_save(obj: Any, folder: Union[str, os.PathLike], config: Optional[Dict] = None) -> List[str]:
"""
Save the modeling files corresponding to a custom model/configuration/tokenizer etc. in a given folder. Optionally
adds the proper fields in a config.
Args:
obj (`Any`): The object for which to save the module files.
folder (`str` or `os.PathLike`): The folder where to save.
config (`PretrainedConfig` or dictionary, `optional`):
A config in which to register the auto_map corresponding to this custom object.
Returns:
`List[str]`: The list of files saved.
"""
if obj.__module__ == "__main__":
logger.warning(
f"We can't save the code defining {obj} in {folder} as it's been defined in __main__. You should put "
"this code in a separate module so we can include it in the saved folder and make it easier to share via "
"the Hub."
)
return
def _set_auto_map_in_config(_config):
module_name = obj.__class__.__module__
last_module = module_name.split(".")[-1]
full_name = f"{last_module}.{obj.__class__.__name__}"
# Special handling for tokenizers
if "Tokenizer" in full_name:
slow_tokenizer_class = None
fast_tokenizer_class = None
if obj.__class__.__name__.endswith("Fast"):
# Fast tokenizer: we have the fast tokenizer class and we may have the slow one has an attribute.
fast_tokenizer_class = f"{last_module}.{obj.__class__.__name__}"
if getattr(obj, "slow_tokenizer_class", None) is not None:
slow_tokenizer = getattr(obj, "slow_tokenizer_class")
slow_tok_module_name = slow_tokenizer.__module__
last_slow_tok_module = slow_tok_module_name.split(".")[-1]
slow_tokenizer_class = f"{last_slow_tok_module}.{slow_tokenizer.__name__}"
else:
# Slow tokenizer: no way to have the fast class
slow_tokenizer_class = f"{last_module}.{obj.__class__.__name__}"
full_name = (slow_tokenizer_class, fast_tokenizer_class)
if isinstance(_config, dict):
auto_map = _config.get("auto_map", {})
auto_map[obj._auto_class] = full_name
_config["auto_map"] = auto_map
elif getattr(_config, "auto_map", None) is not None:
_config.auto_map[obj._auto_class] = full_name
else:
_config.auto_map = {obj._auto_class: full_name}
# Add object class to the config auto_map
if isinstance(config, (list, tuple)):
for cfg in config:
_set_auto_map_in_config(cfg)
elif config is not None:
_set_auto_map_in_config(config)
result = []
# Copy module file to the output folder.
object_file = sys.modules[obj.__module__].__file__
dest_file = Path(folder) / (Path(object_file).name)
shutil.copy(object_file, dest_file)
result.append(dest_file)
# Gather all relative imports recursively and make sure they are copied as well.
for needed_file in get_relative_import_files(object_file):
dest_file = Path(folder) / (Path(needed_file).name)
shutil.copy(needed_file, dest_file)
result.append(dest_file)
return result
def _raise_timeout_error(signum, frame):
raise ValueError(
"Loading this model requires you to execute custom code contained in the model repository on your local "
"machine. Please set the option `trust_remote_code=True` to permit loading of this model."
)
TIME_OUT_REMOTE_CODE = 15
def resolve_trust_remote_code(trust_remote_code, model_name, has_local_code, has_remote_code):
if trust_remote_code is None:
if has_local_code:
trust_remote_code = False
elif has_remote_code and TIME_OUT_REMOTE_CODE > 0:
prev_sig_handler = None
try:
prev_sig_handler = signal.signal(signal.SIGALRM, _raise_timeout_error)
signal.alarm(TIME_OUT_REMOTE_CODE)
while trust_remote_code is None:
answer = input(
f"The repository for {model_name} contains custom code which must be executed to correctly "
f"load the model. You can inspect the repository content at https://hf.co/{model_name}.\n"
f"You can avoid this prompt in future by passing the argument `trust_remote_code=True`.\n\n"
f"Do you wish to run the custom code? [y/N] "
)
if answer.lower() in ["yes", "y", "1"]:
trust_remote_code = True
elif answer.lower() in ["no", "n", "0", ""]:
trust_remote_code = False
signal.alarm(0)
except Exception:
# OS which does not support signal.SIGALRM
raise ValueError(
f"The repository for {model_name} contains custom code which must be executed to correctly "
f"load the model. You can inspect the repository content at https://hf.co/{model_name}.\n"
f"Please pass the argument `trust_remote_code=True` to allow custom code to be run."
)
finally:
if prev_sig_handler is not None:
signal.signal(signal.SIGALRM, prev_sig_handler)
signal.alarm(0)
elif has_remote_code:
# For the CI which puts the timeout at 0
_raise_timeout_error(None, None)
if has_remote_code and not has_local_code and not trust_remote_code:
raise ValueError(
f"Loading {model_name} requires you to execute the configuration file in that"
" repo on your local machine. Make sure you have read the code there to avoid malicious use, then"
" set the option `trust_remote_code=True` to remove this error."
)
return trust_remote_code
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/tokenization_utils.py | # coding=utf-8
# Copyright 2020 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Tokenization classes for python tokenizers. For fast tokenizers (provided by HuggingFace's tokenizers library) see
tokenization_utils_fast.py
"""
import bisect
import itertools
import re
import unicodedata
from collections import OrderedDict
from typing import Any, Dict, List, Optional, Tuple, Union, overload
from .tokenization_utils_base import (
ENCODE_KWARGS_DOCSTRING,
ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING,
INIT_TOKENIZER_DOCSTRING,
AddedToken,
BatchEncoding,
EncodedInput,
EncodedInputPair,
PreTokenizedInput,
PreTokenizedInputPair,
PreTrainedTokenizerBase,
TextInput,
TextInputPair,
TruncationStrategy,
)
from .utils import PaddingStrategy, TensorType, add_end_docstrings, logging
logger = logging.get_logger(__name__)
# Slow tokenizers are saved in a vocabulary plus three separated files
SPECIAL_TOKENS_MAP_FILE = "special_tokens_map.json"
ADDED_TOKENS_FILE = "added_tokens.json"
TOKENIZER_CONFIG_FILE = "tokenizer_config.json"
class Trie:
"""
Trie in Python. Creates a Trie out of a list of words. The trie is used to split on `added_tokens` in one pass
Loose reference https://en.wikipedia.org/wiki/Trie
"""
def __init__(self):
self.data = {}
self._tokens = set()
def add(self, word: str):
"""
Passes over every char (utf-8 char) on word and recursively adds it to the internal `data` trie representation.
The special key `""` is used to represent termination.
This function is idempotent, adding twice the same word will leave the trie unchanged
Example:
```python
>>> trie = Trie()
>>> trie.add("Hello 友達")
>>> trie.data
{"H": {"e": {"l": {"l": {"o": {" ": {"友": {"達": {"": 1}}}}}}}}}
>>> trie.add("Hello")
>>> trie.data
{"H": {"e": {"l": {"l": {"o": {"": 1, " ": {"友": {"達": {"": 1}}}}}}}}}
```
"""
if not word:
# Prevent empty string
return
self._tokens.add(word)
ref = self.data
for char in word:
ref[char] = char in ref and ref[char] or {}
ref = ref[char]
ref[""] = 1
def split(self, text: str) -> List[str]:
"""
Will look for the words added to the trie within `text`. Output is the original string splitted along the
boundaries of the words found.
This trie will match the longest possible word first !
Example:
```python
>>> trie = Trie()
>>> trie.split("[CLS] This is a extra_id_100")
["[CLS] This is a extra_id_100"]
>>> trie.add("[CLS]")
>>> trie.add("extra_id_1")
>>> trie.add("extra_id_100")
>>> trie.split("[CLS] This is a extra_id_100")
["[CLS]", " This is a ", "extra_id_100"]
```
"""
# indexes are counted left of the chars index.
# "hello", index 0, is left of h, index 1 is between h and e.
# index 5 is right of the "o".
# States are going to capture every possible start (indexes as above)
# as keys, and have as values, a pointer to the position in the trie
# where we're at. This is a partial match for now.
# This enables to keep track of multiple matches while we're iterating
# the string
# If the trie contains, "blowing", and "lower" and we encounter the
# string "blower", we need to split into ["b", "lower"].
# This is where we need to keep track of multiple possible starts.
states = OrderedDict()
# This will contain every indices where we need
# to cut.
# We force to cut at offset 0 and len(text) (added later)
offsets = [0]
# This is used by the lookahead which needs to skip over
# some text where the full match exceeded the place in the initial
# for loop
skip = 0
# Main loop, Giving this algorithm O(n) complexity
for current, current_char in enumerate(text):
if skip and current < skip:
# Prevents the lookahead for matching twice
# like extra_id_100 and id_100
continue
# This will track every state
# that stop matching, we need to stop tracking them.
# If we look at "lowball", we're going to match "l" (add it to states), "o", "w", then
# fail on "b", we need to remove 0 from the valid states.
to_remove = set()
# Whenever we found a match, we need to drop everything
# this is a greedy algorithm, it will match on the first found token
reset = False
# In this case, we already have partial matches (But unfinished)
for start, trie_pointer in states.items():
if "" in trie_pointer:
# This is a final match, we need to reset and
# store the results in `offsets`.
# Lookahead to match longest first
# Important in case of extra_id_1 vs extra_id_100
# Here we are also actively looking for other earlier partial
# matches
# "[CLS]", "L", we need to match CLS even if L is special
for lookstart, looktrie_pointer in states.items():
if lookstart > start:
# This partial match is later, we can stop looking
break
elif lookstart < start:
# This partial match is earlier, the trie pointer
# was already updated, so index is + 1
lookahead_index = current + 1
end = current + 1
else:
# Here lookstart == start and
# looktrie_pointer == trie_pointer
# It wasn't updated yet so indices are current ones
lookahead_index = current
end = current
next_char = text[lookahead_index] if lookahead_index < len(text) else None
if "" in looktrie_pointer:
start = lookstart
end = lookahead_index
skip = lookahead_index
while next_char in looktrie_pointer:
looktrie_pointer = looktrie_pointer[next_char]
lookahead_index += 1
if "" in looktrie_pointer:
start = lookstart
end = lookahead_index
skip = lookahead_index
if lookahead_index == len(text):
# End of string
break
next_char = text[lookahead_index]
# End lookahead
# Storing and resetting
offsets.append(start)
offsets.append(end)
reset = True
break
elif current_char in trie_pointer:
# The current character being looked at has a match within the trie
# update the pointer (it will be stored back into states later).
trie_pointer = trie_pointer[current_char]
# Storing back the new pointer into the states.
# Partial matches got longer by one.
states[start] = trie_pointer
else:
# The new character has not match in the trie, we need
# to stop keeping track of this partial match.
# We can't do it directly within the loop because of how
# python iteration works
to_remove.add(start)
# Either clearing the full start (we found a real match)
# Or clearing only the partial matches that didn't work.
if reset:
states = {}
else:
for start in to_remove:
del states[start]
# If this character is a starting character within the trie
# start keeping track of this partial match.
if current >= skip and current_char in self.data:
states[current] = self.data[current_char]
# We have a cut at the end with states.
for start, trie_pointer in states.items():
if "" in trie_pointer:
# This is a final match, we need to reset and
# store the results in `offsets`.
end = len(text)
offsets.append(start)
offsets.append(end)
# Longest cut is always the one with lower start so the first
# item so we need to break.
break
return self.cut_text(text, offsets)
def cut_text(self, text, offsets):
# We have all the offsets now, we just need to do the actual splitting.
# We need to eventually add the first part of the string and the eventual
# last part.
offsets.append(len(text))
tokens = []
start = 0
for end in offsets:
if start > end:
logger.error(
"There was a bug in Trie algorithm in tokenization. Attempting to recover. Please report it"
" anyway."
)
continue
elif start == end:
# This might happen if there's a match at index 0
# we're also preventing zero-width cuts in case of two
# consecutive matches
continue
tokens.append(text[start:end])
start = end
return tokens
def _is_whitespace(char):
"""Checks whether `char` is a whitespace character."""
# \t, \n, and \r are technically control characters but we treat them
# as whitespace since they are generally considered as such.
if char == " " or char == "\t" or char == "\n" or char == "\r":
return True
cat = unicodedata.category(char)
if cat == "Zs":
return True
return False
def _is_control(char):
"""Checks whether `char` is a control character."""
# These are technically control characters but we count them as whitespace
# characters.
if char == "\t" or char == "\n" or char == "\r":
return False
cat = unicodedata.category(char)
if cat.startswith("C"):
return True
return False
def _is_punctuation(char):
"""Checks whether `char` is a punctuation character."""
cp = ord(char)
# We treat all non-letter/number ASCII as punctuation.
# Characters such as "^", "$", and "`" are not in the Unicode
# Punctuation class but we treat them as punctuation anyways, for
# consistency.
if (cp >= 33 and cp <= 47) or (cp >= 58 and cp <= 64) or (cp >= 91 and cp <= 96) or (cp >= 123 and cp <= 126):
return True
cat = unicodedata.category(char)
if cat.startswith("P"):
return True
return False
def _is_end_of_word(text):
"""Checks whether the last character in text is one of a punctuation, control or whitespace character."""
last_char = text[-1]
return bool(_is_control(last_char) | _is_punctuation(last_char) | _is_whitespace(last_char))
def _is_start_of_word(text):
"""Checks whether the first character in text is one of a punctuation, control or whitespace character."""
first_char = text[0]
return bool(_is_control(first_char) | _is_punctuation(first_char) | _is_whitespace(first_char))
def _insert_one_token_to_ordered_list(token_list: List[str], new_token: str):
"""
Inserts one token to an ordered list if it does not already exist. Note: token_list must be sorted.
"""
insertion_idx = bisect.bisect_left(token_list, new_token)
# Checks if new_token is already in the ordered token_list
if insertion_idx < len(token_list) and token_list[insertion_idx] == new_token:
# new_token is in token_list, don't add
return
else:
token_list.insert(insertion_idx, new_token)
@add_end_docstrings(INIT_TOKENIZER_DOCSTRING)
class PreTrainedTokenizer(PreTrainedTokenizerBase):
"""
Base class for all slow tokenizers.
Inherits from [`~tokenization_utils_base.PreTrainedTokenizerBase`].
Handle all the shared methods for tokenization and special tokens as well as methods downloading/caching/loading
pretrained tokenizers as well as adding tokens to the vocabulary.
This class also contain the added tokens in a unified way on top of all tokenizers so we don't have to handle the
specific vocabulary augmentation methods of the various underlying dictionary structures (BPE, sentencepiece...).
"""
def __init__(self, **kwargs):
# 1. Init the parent class
self.tokens_trie = Trie()
# 2. init `_added_tokens_decoder` if child class did not
if not hasattr(self, "_added_tokens_decoder"):
self._added_tokens_decoder: Dict[int, AddedToken] = {}
# 3. if a `added_tokens_decoder` is passed, we are loading from a saved tokenizer, we overwrite
self._added_tokens_decoder.update(kwargs.pop("added_tokens_decoder", {}))
self._added_tokens_encoder: Dict[str, int] = {k.content: v for v, k in self._added_tokens_decoder.items()}
# 4 init the parent class
super().__init__(**kwargs)
# 4. If some of the special tokens are not part of the vocab, we add them, at the end.
# the order of addition is the same as self.SPECIAL_TOKENS_ATTRIBUTES following `tokenizers`
self._add_tokens(
[token for token in self.all_special_tokens_extended if token not in self._added_tokens_encoder],
special_tokens=True,
)
self._decode_use_source_tokenizer = False
@property
def is_fast(self) -> bool:
return False
@property
def vocab_size(self) -> int:
"""
`int`: Size of the base vocabulary (without the added tokens).
"""
raise NotImplementedError
@property
def added_tokens_encoder(self) -> Dict[str, int]:
"""
Returns the sorted mapping from string to index. The added tokens encoder is cached for performance
optimisation in `self._added_tokens_encoder` for the slow tokenizers.
"""
return {k.content: v for v, k in sorted(self._added_tokens_decoder.items(), key=lambda item: item[0])}
@property
def added_tokens_decoder(self) -> Dict[int, AddedToken]:
"""
Returns the added tokens in the vocabulary as a dictionary of index to AddedToken.
Returns:
`Dict[str, int]`: The added tokens.
"""
return dict(sorted(self._added_tokens_decoder.items(), key=lambda item: item[0]))
@added_tokens_decoder.setter
def added_tokens_decoder(self, value: Dict[int, Union[AddedToken, str]]) -> Dict[int, AddedToken]:
# Always raise an error if string because users should define the behavior
for index, token in value.items():
if not isinstance(token, (str, AddedToken)) or not isinstance(index, int):
raise ValueError(
f"The provided `added_tokens_decoder` has an element of type {index.__class__, token.__class__}, should be a dict of {int, Union[AddedToken, str]}"
)
self._added_tokens_decoder[index] = AddedToken(token) if isinstance(token, str) else token
self._added_tokens_encoder[str(token)] = index
def get_added_vocab(self) -> Dict[str, int]:
"""
Returns the added tokens in the vocabulary as a dictionary of token to index. Results might be different from
the fast call because for now we always add the tokens even if they are already in the vocabulary. This is
something we should change.
Returns:
`Dict[str, int]`: The added tokens.
"""
return self._added_tokens_encoder
def __len__(self):
"""
Size of the full vocabulary with the added tokens. Counts the `keys` and not the `values` because otherwise if
there is a hole in the vocab, we will add tokenizers at a wrong index.
"""
return len(set(self.get_vocab().keys()))
def _add_tokens(self, new_tokens: Union[List[str], List[AddedToken]], special_tokens: bool = False) -> int:
"""
Add a list of new tokens to the tokenizer class. If the new tokens are not in the vocabulary, they are added to
it with indices starting from length of the current vocabulary. Special tokens are sometimes already in the
vocab which is why they have to be handled specifically.
Args:
new_tokens (`List[str]`or `List[tokenizers.AddedToken]`):
Token(s) to add in vocabulary. A token is counted as added if it's not already in the vocabulary
(tested by checking if the tokenizer assign the index of the `unk_token` to them). If a token is part
of the vocabulary then we simply mark this token as an `AddedToken` which allows to control the
stripping and normalization of this token. This is NOT possible in `tokenizers`.
special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the tokens should be added as special tokens.
Returns:
`int`: The number of tokens actually added to the vocabulary.
Examples:
```python
# Let's see how to increase the vocabulary of Bert model and tokenizer
tokenizer = BertTokenizer.from_pretrained("google-bert/bert-base-uncased")
model = BertModel.from_pretrained("google-bert/bert-base-uncased")
num_added_toks = tokenizer.add_tokens(["new_tok1", "my_new-tok2"])
print("We have added", num_added_toks, "tokens")
# Note: resize_token_embeddings expects to receive the full size of the new vocabulary, i.e. the length of the tokenizer.
model.resize_token_embeddings(len(tokenizer))
```"""
added_tokens = 0
if new_tokens is None:
return added_tokens
# TODO this is fairly slow to improve!
current_vocab = self.get_vocab().copy()
new_idx = len(current_vocab) # only call this once, len gives the last index + 1
for token in new_tokens:
if not isinstance(token, (str, AddedToken)):
raise TypeError(f"Token {token} is not a string but a {type(token)}.")
if str(token) == "":
continue
if isinstance(token, str):
if token in self._added_tokens_encoder:
continue
else:
# very important for fast and slow equivalence!
is_special = token in self.all_special_tokens or special_tokens
token = AddedToken(
token, rstrip=False, lstrip=False, normalized=not is_special, special=is_special
)
elif special_tokens:
# doing token.special=True changes the normalization! will fix in rust
# this is important and the only reason why the AddedTokens in each class are normalized by default
token.__setstate__({"special": True, "normalized": token.normalized})
if token in self._added_tokens_decoder:
continue
if not token.special and token.normalized and getattr(self, "do_lower_case", False):
# Normalize if requested
token.content = token.content.lower()
if token.content not in current_vocab:
token_index = new_idx + added_tokens
current_vocab[token.content] = token_index
added_tokens += 1
else:
token_index = current_vocab[token.content]
if token.special and str(token) not in self.all_special_tokens:
self._additional_special_tokens.append(token)
# the setter automatically updates the reverse map
self._added_tokens_decoder[token_index] = token
self._added_tokens_encoder[token.content] = token_index
if self.verbose:
logger.info(f"Adding {token} to the vocabulary")
self._update_trie()
return added_tokens
def _update_trie(self, unique_no_split_tokens: Optional[str] = []):
for token in self._added_tokens_decoder.values():
if token not in self.tokens_trie._tokens:
self.tokens_trie.add(token.content)
for token in unique_no_split_tokens:
if token not in self.tokens_trie._tokens:
self.tokens_trie.add(token)
def num_special_tokens_to_add(self, pair: bool = False) -> int:
"""
Returns the number of added tokens when encoding a sequence with special tokens.
<Tip>
This encodes a dummy input and checks the number of added tokens, and is therefore not efficient. Do not put
this inside your training loop.
</Tip>
Args:
pair (`bool`, *optional*, defaults to `False`):
Whether the number of added tokens should be computed in the case of a sequence pair or a single
sequence.
Returns:
`int`: Number of special tokens added to sequences.
"""
token_ids_0 = []
token_ids_1 = []
return len(self.build_inputs_with_special_tokens(token_ids_0, token_ids_1 if pair else None))
def tokenize(self, text: TextInput, **kwargs) -> List[str]:
"""
Converts a string into a sequence of tokens, using the tokenizer.
Split in words for word-based vocabulary or sub-words for sub-word-based vocabularies
(BPE/SentencePieces/WordPieces). Takes care of added tokens.
Args:
text (`str`):
The sequence to be encoded.
**kwargs (additional keyword arguments):
Passed along to the model-specific `prepare_for_tokenization` preprocessing method.
Returns:
`List[str]`: The list of tokens.
"""
split_special_tokens = kwargs.pop("split_special_tokens", self.split_special_tokens)
text, kwargs = self.prepare_for_tokenization(text, **kwargs)
if kwargs:
logger.warning(f"Keyword arguments {kwargs} not recognized.")
if hasattr(self, "do_lower_case") and self.do_lower_case:
# convert non-special tokens to lowercase. Might be super slow as well?
escaped_special_toks = [re.escape(s_tok) for s_tok in (self.all_special_tokens)]
escaped_special_toks += [
re.escape(s_tok.content)
for s_tok in (self._added_tokens_decoder.values())
if not s_tok.special and s_tok.normalized
]
pattern = r"(" + r"|".join(escaped_special_toks) + r")|" + r"(.+?)"
text = re.sub(pattern, lambda m: m.groups()[0] or m.groups()[1].lower(), text)
if split_special_tokens:
no_split_token = []
tokens = [text]
else:
no_split_token = self._added_tokens_encoder.keys() # don't split on any of the added tokens
# "This is something<special_token_1> else"
tokens = self.tokens_trie.split(text)
# ["This is something", "<special_token_1>", " else"]
for i, token in enumerate(tokens):
if token in no_split_token:
tok_extended = self._added_tokens_decoder.get(self._added_tokens_encoder[token], None)
left = tokens[i - 1] if i > 0 else None
right = tokens[i + 1] if i < len(tokens) - 1 else None
if isinstance(tok_extended, AddedToken):
if tok_extended.rstrip and right:
# A bit counter-intuitive but we strip the left of the string
# since tok_extended.rstrip means the special token is eating all white spaces on its right
tokens[i + 1] = right.lstrip()
# Strip white spaces on the left
if tok_extended.lstrip and left:
tokens[i - 1] = left.rstrip() # Opposite here
if tok_extended.single_word and left and left[-1] != " ":
tokens[i - 1] += token
tokens[i] = ""
elif tok_extended.single_word and right and right[0] != " ":
tokens[i + 1] = token + tokens[i + 1]
tokens[i] = ""
else:
raise ValueError(
f"{tok_extended} cannot be tokenized because it was not properly added"
f" to the tokenizer. This means that it is not an `AddedToken` but a {type(tok_extended)}"
)
# ["This is something", "<special_token_1>", "else"]
tokenized_text = []
for token in tokens:
# Need to skip eventual empty (fully stripped) tokens
if not token:
continue
if token in no_split_token:
tokenized_text.append(token)
else:
tokenized_text.extend(self._tokenize(token))
# ["This", " is", " something", "<special_token_1>", "else"]
return tokenized_text
def _tokenize(self, text, **kwargs):
"""
Converts a string into a sequence of tokens (string), using the tokenizer. Split in words for word-based
vocabulary or sub-words for sub-word-based vocabularies (BPE/SentencePieces/WordPieces).
Do NOT take care of added tokens.
"""
raise NotImplementedError
def convert_tokens_to_ids(self, tokens: Union[str, List[str]]) -> Union[int, List[int]]:
"""
Converts a token string (or a sequence of tokens) in a single integer id (or a sequence of ids), using the
vocabulary.
Args:
tokens (`str` or `List[str]`): One or several token(s) to convert to token id(s).
Returns:
`int` or `List[int]`: The token id or list of token ids.
"""
if tokens is None:
return None
if isinstance(tokens, str):
return self._convert_token_to_id_with_added_voc(tokens)
ids = []
for token in tokens:
ids.append(self._convert_token_to_id_with_added_voc(token))
return ids
def _convert_token_to_id_with_added_voc(self, token):
if token is None:
return None
if token in self._added_tokens_encoder:
return self._added_tokens_encoder[token]
return self._convert_token_to_id(token)
def _convert_token_to_id(self, token):
raise NotImplementedError
def _encode_plus(
self,
text: Union[TextInput, PreTokenizedInput, EncodedInput],
text_pair: Optional[Union[TextInput, PreTokenizedInput, EncodedInput]] = None,
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
def get_input_ids(text):
if isinstance(text, str):
tokens = self.tokenize(text, **kwargs)
return self.convert_tokens_to_ids(tokens)
elif isinstance(text, (list, tuple)) and len(text) > 0 and isinstance(text[0], str):
if is_split_into_words:
tokens = list(
itertools.chain(*(self.tokenize(t, is_split_into_words=True, **kwargs) for t in text))
)
return self.convert_tokens_to_ids(tokens)
else:
return self.convert_tokens_to_ids(text)
elif isinstance(text, (list, tuple)) and len(text) > 0 and isinstance(text[0], int):
return text
else:
if is_split_into_words:
raise ValueError(
f"Input {text} is not valid. Should be a string or a list/tuple of strings when"
" `is_split_into_words=True`."
)
else:
raise ValueError(
f"Input {text} is not valid. Should be a string, a list/tuple of strings or a list/tuple of"
" integers."
)
if return_offsets_mapping:
raise NotImplementedError(
"return_offset_mapping is not available when using Python tokenizers. "
"To use this feature, change your tokenizer to one deriving from "
"transformers.PreTrainedTokenizerFast. "
"More information on available tokenizers at "
"https://github.com/huggingface/transformers/pull/2674"
)
first_ids = get_input_ids(text)
second_ids = get_input_ids(text_pair) if text_pair is not None else None
return self.prepare_for_model(
first_ids,
pair_ids=second_ids,
add_special_tokens=add_special_tokens,
padding=padding_strategy.value,
truncation=truncation_strategy.value,
max_length=max_length,
stride=stride,
pad_to_multiple_of=pad_to_multiple_of,
return_tensors=return_tensors,
prepend_batch_axis=True,
return_attention_mask=return_attention_mask,
return_token_type_ids=return_token_type_ids,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_length=return_length,
verbose=verbose,
)
def _batch_encode_plus(
self,
batch_text_or_text_pairs: Union[
List[TextInput],
List[TextInputPair],
List[PreTokenizedInput],
List[PreTokenizedInputPair],
List[EncodedInput],
List[EncodedInputPair],
],
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
is_split_into_words: bool = False,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[Union[str, TensorType]] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_offsets_mapping: bool = False,
return_length: bool = False,
verbose: bool = True,
**kwargs,
) -> BatchEncoding:
def get_input_ids(text):
if isinstance(text, str):
tokens = self.tokenize(text, **kwargs)
return self.convert_tokens_to_ids(tokens)
elif isinstance(text, (list, tuple)) and len(text) > 0 and isinstance(text[0], str):
if is_split_into_words:
tokens = list(
itertools.chain(*(self.tokenize(t, is_split_into_words=True, **kwargs) for t in text))
)
return self.convert_tokens_to_ids(tokens)
else:
return self.convert_tokens_to_ids(text)
elif isinstance(text, (list, tuple)) and len(text) > 0 and isinstance(text[0], int):
return text
else:
raise ValueError(
"Input is not valid. Should be a string, a list/tuple of strings or a list/tuple of integers."
)
if return_offsets_mapping:
raise NotImplementedError(
"return_offset_mapping is not available when using Python tokenizers. "
"To use this feature, change your tokenizer to one deriving from "
"transformers.PreTrainedTokenizerFast."
)
input_ids = []
for ids_or_pair_ids in batch_text_or_text_pairs:
if not isinstance(ids_or_pair_ids, (list, tuple)):
ids, pair_ids = ids_or_pair_ids, None
elif is_split_into_words and not isinstance(ids_or_pair_ids[0], (list, tuple)):
ids, pair_ids = ids_or_pair_ids, None
else:
ids, pair_ids = ids_or_pair_ids
first_ids = get_input_ids(ids)
second_ids = get_input_ids(pair_ids) if pair_ids is not None else None
input_ids.append((first_ids, second_ids))
batch_outputs = self._batch_prepare_for_model(
input_ids,
add_special_tokens=add_special_tokens,
padding_strategy=padding_strategy,
truncation_strategy=truncation_strategy,
max_length=max_length,
stride=stride,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
return_token_type_ids=return_token_type_ids,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_length=return_length,
return_tensors=return_tensors,
verbose=verbose,
)
return BatchEncoding(batch_outputs)
@add_end_docstrings(ENCODE_KWARGS_DOCSTRING, ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
def _batch_prepare_for_model(
self,
batch_ids_pairs: List[Union[PreTokenizedInputPair, Tuple[List[int], None]]],
add_special_tokens: bool = True,
padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
max_length: Optional[int] = None,
stride: int = 0,
pad_to_multiple_of: Optional[int] = None,
return_tensors: Optional[str] = None,
return_token_type_ids: Optional[bool] = None,
return_attention_mask: Optional[bool] = None,
return_overflowing_tokens: bool = False,
return_special_tokens_mask: bool = False,
return_length: bool = False,
verbose: bool = True,
) -> BatchEncoding:
"""
Prepares a sequence of input id, or a pair of sequences of inputs ids so that it can be used by the model. It
adds special tokens, truncates sequences if overflowing while taking into account the special tokens and
manages a moving window (with user defined stride) for overflowing tokens
Args:
batch_ids_pairs: list of tokenized input ids or input ids pairs
"""
batch_outputs = {}
for first_ids, second_ids in batch_ids_pairs:
outputs = self.prepare_for_model(
first_ids,
second_ids,
add_special_tokens=add_special_tokens,
padding=PaddingStrategy.DO_NOT_PAD.value, # we pad in batch afterward
truncation=truncation_strategy.value,
max_length=max_length,
stride=stride,
pad_to_multiple_of=None, # we pad in batch afterward
return_attention_mask=False, # we pad in batch afterward
return_token_type_ids=return_token_type_ids,
return_overflowing_tokens=return_overflowing_tokens,
return_special_tokens_mask=return_special_tokens_mask,
return_length=return_length,
return_tensors=None, # We convert the whole batch to tensors at the end
prepend_batch_axis=False,
verbose=verbose,
)
for key, value in outputs.items():
if key not in batch_outputs:
batch_outputs[key] = []
batch_outputs[key].append(value)
batch_outputs = self.pad(
batch_outputs,
padding=padding_strategy.value,
max_length=max_length,
pad_to_multiple_of=pad_to_multiple_of,
return_attention_mask=return_attention_mask,
)
batch_outputs = BatchEncoding(batch_outputs, tensor_type=return_tensors)
return batch_outputs
def prepare_for_tokenization(
self, text: str, is_split_into_words: bool = False, **kwargs
) -> Tuple[str, Dict[str, Any]]:
"""
Performs any necessary transformations before tokenization.
This method should pop the arguments from kwargs and return the remaining `kwargs` as well. We test the
`kwargs` at the end of the encoding process to be sure all the arguments have been used.
Args:
text (`str`):
The text to prepare.
is_split_into_words (`bool`, *optional*, defaults to `False`):
Whether or not the input is already pre-tokenized (e.g., split into words). If set to `True`, the
tokenizer assumes the input is already split into words (for instance, by splitting it on whitespace)
which it will tokenize. This is useful for NER or token classification.
kwargs (`Dict[str, Any]`, *optional*):
Keyword arguments to use for the tokenization.
Returns:
`Tuple[str, Dict[str, Any]]`: The prepared text and the unused kwargs.
"""
return (text, kwargs)
def get_special_tokens_mask(
self, token_ids_0: List, token_ids_1: Optional[List] = None, already_has_special_tokens: bool = False
) -> List[int]:
"""
Retrieves sequence ids from a token list that has no special tokens added. This method is called when adding
special tokens using the tokenizer `prepare_for_model` or `encode_plus` methods.
Args:
token_ids_0 (`List[int]`):
List of ids of the first sequence.
token_ids_1 (`List[int]`, *optional*):
List of ids of the second sequence.
already_has_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not the token list is already formatted with special tokens for the model.
Returns:
A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
"""
if already_has_special_tokens:
if token_ids_1 is not None:
raise ValueError(
"You should not supply a second sequence if the provided sequence of "
"ids is already formatted with special tokens for the model."
)
return super().get_special_tokens_mask(
token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
)
return [0] * ((len(token_ids_1) if token_ids_1 else 0) + len(token_ids_0))
@overload
def convert_ids_to_tokens(self, ids: int, skip_special_tokens: bool = False) -> str:
...
@overload
def convert_ids_to_tokens(self, ids: List[int], skip_special_tokens: bool = False) -> List[str]:
...
def convert_ids_to_tokens(
self, ids: Union[int, List[int]], skip_special_tokens: bool = False
) -> Union[str, List[str]]:
"""
Converts a single index or a sequence of indices in a token or a sequence of tokens, using the vocabulary and
added tokens.
Args:
ids (`int` or `List[int]`):
The token id (or token ids) to convert to tokens.
skip_special_tokens (`bool`, *optional*, defaults to `False`):
Whether or not to remove special tokens in the decoding.
Returns:
`str` or `List[str]`: The decoded token(s).
"""
if isinstance(ids, int):
if ids in self._added_tokens_decoder:
return self._added_tokens_decoder[ids].content
else:
return self._convert_id_to_token(ids)
tokens = []
for index in ids:
index = int(index)
if skip_special_tokens and index in self.all_special_ids:
continue
if index in self._added_tokens_decoder:
tokens.append(self._added_tokens_decoder[index].content)
else:
tokens.append(self._convert_id_to_token(index))
return tokens
def _convert_id_to_token(self, index: int) -> str:
raise NotImplementedError
def convert_tokens_to_string(self, tokens: List[str]) -> str:
return " ".join(tokens)
def _decode(
self,
token_ids: List[int],
skip_special_tokens: bool = False,
clean_up_tokenization_spaces: bool = None,
spaces_between_special_tokens: bool = True,
**kwargs,
) -> str:
self._decode_use_source_tokenizer = kwargs.pop("use_source_tokenizer", False)
filtered_tokens = self.convert_ids_to_tokens(token_ids, skip_special_tokens=skip_special_tokens)
legacy_added_tokens = set(self._added_tokens_encoder.keys()) - set(self.all_special_tokens) | {
token for token in self.additional_special_tokens if self.convert_tokens_to_ids(token) >= self.vocab_size
}
# To avoid mixing byte-level and unicode for byte-level BPT
# we need to build string separately for added tokens and byte-level tokens
# cf. https://github.com/huggingface/transformers/issues/1133
sub_texts = []
current_sub_text = []
# TODO @ArthurZ in version 5, special tokens should be handled in convert_tokens_to_string, while _convert_tokens_to_string
for token in filtered_tokens:
if skip_special_tokens and token in self.all_special_ids:
continue
if token in legacy_added_tokens:
if current_sub_text:
string = self.convert_tokens_to_string(current_sub_text)
if len(string) > 0:
sub_texts.append(string)
current_sub_text = []
sub_texts.append(token)
else:
current_sub_text.append(token)
if current_sub_text:
sub_texts.append(self.convert_tokens_to_string(current_sub_text))
if spaces_between_special_tokens:
text = " ".join(sub_texts)
else:
text = "".join(sub_texts)
clean_up_tokenization_spaces = (
clean_up_tokenization_spaces
if clean_up_tokenization_spaces is not None
else self.clean_up_tokenization_spaces
)
if clean_up_tokenization_spaces:
clean_text = self.clean_up_tokenization(text)
return clean_text
else:
return text
| 0 |
mavonic_private_repos/transformers/src | mavonic_private_repos/transformers/src/transformers/convert_slow_tokenizer.py | # coding=utf-8
# Copyright 2018 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Utilities to convert slow tokenizers in their fast tokenizers counterparts.
All the conversions are grouped here to gather SentencePiece dependencies outside of the fast tokenizers files and
allow to make our dependency on SentencePiece optional.
"""
import warnings
from typing import Dict, List, Tuple
from packaging import version
from tokenizers import AddedToken, Regex, Tokenizer, decoders, normalizers, pre_tokenizers, processors
from tokenizers.models import BPE, Unigram, WordPiece
from .utils import is_protobuf_available, requires_backends
from .utils.import_utils import PROTOBUF_IMPORT_ERROR
def import_protobuf(error_message=""):
if is_protobuf_available():
import google.protobuf
if version.parse(google.protobuf.__version__) < version.parse("4.0.0"):
from transformers.utils import sentencepiece_model_pb2
else:
from transformers.utils import sentencepiece_model_pb2_new as sentencepiece_model_pb2
return sentencepiece_model_pb2
else:
raise ImportError(PROTOBUF_IMPORT_ERROR.format(error_message))
def _get_prepend_scheme(add_prefix_space: bool, original_tokenizer) -> str:
if add_prefix_space:
prepend_scheme = "always"
if not getattr(original_tokenizer, "legacy", True):
prepend_scheme = "first"
else:
prepend_scheme = "never"
return prepend_scheme
class SentencePieceExtractor:
"""
Extractor implementation for SentencePiece trained models. https://github.com/google/sentencepiece
"""
def __init__(self, model: str):
requires_backends(self, "sentencepiece")
from sentencepiece import SentencePieceProcessor
self.sp = SentencePieceProcessor()
self.sp.Load(model)
def extract(self, vocab_scores=None) -> Tuple[Dict[str, int], List[Tuple]]:
"""
By default will return vocab and merges with respect to their order, by sending `vocab_scores` we're going to
order the merges with respect to the piece scores instead.
"""
sp = self.sp
vocab = {sp.id_to_piece(index): index for index in range(sp.GetPieceSize())}
if vocab_scores is not None:
vocab_scores, reverse = dict(vocab_scores), True
else:
vocab_scores, reverse = vocab, False
# Merges
merges = []
for merge, piece_score in vocab_scores.items():
local = []
for index in range(1, len(merge)):
piece_l, piece_r = merge[:index], merge[index:]
if piece_l in vocab and piece_r in vocab:
local.append((piece_l, piece_r, piece_score))
local = sorted(local, key=lambda x: (vocab[x[0]], vocab[x[1]]))
merges.extend(local)
merges = sorted(merges, key=lambda val: val[2], reverse=reverse)
merges = [(val[0], val[1]) for val in merges]
return vocab, merges
class GemmaSentencePieceExtractor(SentencePieceExtractor):
def extract(self, vocab_scores=None) -> Tuple[Dict[str, int], List[Tuple]]:
"""
By default will return vocab and merges with respect to their order, by sending `vocab_scores` we're going to
order the merges with respect to the piece scores instead.
"""
sp = self.sp
vocab = {sp.id_to_piece(index): index for index in range(sp.GetPieceSize())}
# there is a missing token in the vocab. We have to do this to support merges
# "<0x09>" is the bytefallback for `\t`
vocab["\t"] = vocab.get("<0x09>")
if vocab_scores is not None:
vocab_scores, reverse = dict(vocab_scores), True
else:
vocab_scores, reverse = vocab, False
# Merges
merges = []
for merge, piece_score in vocab_scores.items():
local = []
for index in range(1, len(merge)):
piece_l, piece_r = merge[:index], merge[index:]
if piece_l in vocab and piece_r in vocab:
local.append((piece_l, piece_r, piece_score))
local = sorted(local, key=lambda x: (vocab[x[0]], vocab[x[1]]))
merges.extend(local)
merges = sorted(merges, key=lambda val: val[2], reverse=reverse)
merges = [(val[0], val[1]) for val in merges]
return vocab, merges
def check_number_comma(piece: str) -> bool:
return len(piece) < 2 or piece[-1] != "," or not piece[-2].isdigit()
class Converter:
def __init__(self, original_tokenizer):
self.original_tokenizer = original_tokenizer
def converted(self) -> Tokenizer:
raise NotImplementedError()
class BertConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
tokenize_chinese_chars = False
strip_accents = False
do_lower_case = False
if hasattr(self.original_tokenizer, "basic_tokenizer"):
tokenize_chinese_chars = self.original_tokenizer.basic_tokenizer.tokenize_chinese_chars
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=tokenize_chinese_chars,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:0 $A:0 {sep}:0",
pair=f"{cls}:0 $A:0 {sep}:0 $B:1 {sep}:1",
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class SplinterConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
tokenize_chinese_chars = False
strip_accents = False
do_lower_case = False
if hasattr(self.original_tokenizer, "basic_tokenizer"):
tokenize_chinese_chars = self.original_tokenizer.basic_tokenizer.tokenize_chinese_chars
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=tokenize_chinese_chars,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
question = str(self.original_tokenizer.question_token)
dot = "."
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
question_token_id = self.original_tokenizer.question_token_id
dot_token_id = self.original_tokenizer.convert_tokens_to_ids(".")
if self.original_tokenizer.padding_side == "right":
pair = f"{cls}:0 $A:0 {question} {dot} {sep}:0 $B:1 {sep}:1"
else:
pair = f"{cls}:0 $A:0 {sep}:0 $B:1 {question} {dot} {sep}:1"
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:0 $A:0 {sep}:0",
pair=pair,
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
(question, question_token_id),
(dot, dot_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class FunnelConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
tokenize_chinese_chars = False
strip_accents = False
do_lower_case = False
if hasattr(self.original_tokenizer, "basic_tokenizer"):
tokenize_chinese_chars = self.original_tokenizer.basic_tokenizer.tokenize_chinese_chars
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=tokenize_chinese_chars,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:2 $A:0 {sep}:0", # token_type_id is 2 for Funnel transformer
pair=f"{cls}:2 $A:0 {sep}:0 $B:1 {sep}:1",
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class MPNetConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
tokenize_chinese_chars = False
strip_accents = False
do_lower_case = False
if hasattr(self.original_tokenizer, "basic_tokenizer"):
tokenize_chinese_chars = self.original_tokenizer.basic_tokenizer.tokenize_chinese_chars
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=tokenize_chinese_chars,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:0 $A:0 {sep}:0",
pair=f"{cls}:0 $A:0 {sep}:0 {sep}:0 $B:1 {sep}:1", # MPNet uses two [SEP] tokens
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class OpenAIGPTConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
unk_token = self.original_tokenizer.unk_token
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
unk_token=str(unk_token),
end_of_word_suffix="</w>",
fuse_unk=False,
)
)
if tokenizer.token_to_id(str(unk_token)) is not None:
tokenizer.add_special_tokens([str(unk_token)])
tokenizer.normalizer = normalizers.BertNormalizer(lowercase=True)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
tokenizer.decoder = decoders.BPEDecoder(suffix="</w>")
return tokenizer
class GPT2Converter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=self.original_tokenizer.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
if self.original_tokenizer.add_bos_token:
bos = self.original_tokenizer.bos_token
bos_token_id = self.original_tokenizer.bos_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{bos}:0 $A:0",
pair=f"{bos}:0 $A:0 $B:1",
special_tokens=[
(bos, bos_token_id),
],
)
else:
# XXX trim_offsets=False actually means this post_processor doesn't
# really do anything.
tokenizer.post_processor = processors.ByteLevel(trim_offsets=False)
return tokenizer
class HerbertConverter(Converter):
def converted(self) -> Tokenizer:
tokenizer_info_str = "#version:"
token_suffix = "</w>"
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
if tokenizer_info_str in merges[0][0]:
merges = merges[1:]
tokenizer = Tokenizer(
BPE(
vocab,
merges,
dropout=None,
unk_token=self.original_tokenizer.unk_token,
end_of_word_suffix=token_suffix,
)
)
tokenizer.normalizer = normalizers.BertNormalizer(lowercase=False, strip_accents=False)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
tokenizer.decoder = decoders.BPEDecoder(suffix=token_suffix)
tokenizer.post_processor = processors.BertProcessing(
sep=(self.original_tokenizer.sep_token, self.original_tokenizer.sep_token_id),
cls=(self.original_tokenizer.cls_token, self.original_tokenizer.cls_token_id),
)
return tokenizer
class Qwen2Converter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
unk_token=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
byte_fallback=False,
)
)
tokenizer.normalizer = normalizers.NFC()
tokenizer.pre_tokenizer = pre_tokenizers.Sequence(
[
pre_tokenizers.Split(
Regex(
r"""(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+"""
),
behavior="isolated",
invert=False,
),
pre_tokenizers.ByteLevel(
add_prefix_space=getattr(self.original_tokenizer, "add_prefix_space", False),
use_regex=False,
),
]
)
tokenizer.decoder = decoders.ByteLevel()
tokenizer.post_processor = processors.ByteLevel(trim_offsets=False)
return tokenizer
class RobertaConverter(Converter):
def converted(self) -> Tokenizer:
ot = self.original_tokenizer
vocab = ot.encoder
merges = list(ot.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=ot.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
tokenizer.post_processor = processors.RobertaProcessing(
sep=(ot.sep_token, ot.sep_token_id),
cls=(ot.cls_token, ot.cls_token_id),
add_prefix_space=ot.add_prefix_space,
trim_offsets=True, # True by default on Roberta (historical)
)
return tokenizer
class RoFormerConverter(Converter):
def converted(self) -> Tokenizer:
from .models.roformer.tokenization_utils import JiebaPreTokenizer
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
strip_accents = False
do_lower_case = False
if hasattr(self.original_tokenizer, "basic_tokenizer"):
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=False,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.PreTokenizer.custom(JiebaPreTokenizer(vocab))
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:0 $A:0 {sep}:0",
pair=f"{cls}:0 $A:0 {sep}:0 $B:1 {sep}:1",
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class DebertaConverter(Converter):
def converted(self) -> Tokenizer:
ot = self.original_tokenizer
vocab = ot.encoder
merges = list(ot.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=ot.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
tokenizer.post_processor = processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", self.original_tokenizer.convert_tokens_to_ids("[CLS]")),
("[SEP]", self.original_tokenizer.convert_tokens_to_ids("[SEP]")),
],
)
return tokenizer
class SpmConverter(Converter):
def __init__(self, *args):
requires_backends(self, "protobuf")
super().__init__(*args)
# from .utils import sentencepiece_model_pb2 as model_pb2
model_pb2 = import_protobuf()
m = model_pb2.ModelProto()
with open(self.original_tokenizer.vocab_file, "rb") as f:
m.ParseFromString(f.read())
self.proto = m
if self.proto.trainer_spec.byte_fallback:
if not getattr(self, "handle_byte_fallback", None):
warnings.warn(
"The sentencepiece tokenizer that you are converting to a fast tokenizer uses the byte fallback option"
" which is not implemented in the fast tokenizers. In practice this means that the fast version of the"
" tokenizer can produce unknown tokens whereas the sentencepiece version would have converted these "
"unknown tokens into a sequence of byte tokens matching the original piece of text."
)
def vocab(self, proto):
return [(piece.piece, piece.score) for piece in proto.pieces]
def unk_id(self, proto):
return proto.trainer_spec.unk_id
def tokenizer(self, proto):
model_type = proto.trainer_spec.model_type
vocab_scores = self.vocab(proto)
unk_id = self.unk_id(proto)
if model_type == 1:
tokenizer = Tokenizer(Unigram(vocab_scores, unk_id))
elif model_type == 2:
_, merges = SentencePieceExtractor(self.original_tokenizer.vocab_file).extract()
bpe_vocab = {word: i for i, (word, score) in enumerate(vocab_scores)}
tokenizer = Tokenizer(
BPE(
bpe_vocab,
merges,
unk_token=proto.trainer_spec.unk_piece,
fuse_unk=True,
)
)
else:
raise Exception(
"You're trying to run a `Unigram` model but you're file was trained with a different algorithm"
)
return tokenizer
def normalizer(self, proto):
precompiled_charsmap = proto.normalizer_spec.precompiled_charsmap
_normalizers = [
normalizers.Strip(left=False, right=True), # stripping is important
normalizers.Replace(Regex(" {2,}"), "▁"),
]
if not precompiled_charsmap:
return normalizers.Sequence(_normalizers)
else:
return normalizers.Sequence([normalizers.Precompiled(precompiled_charsmap)] + _normalizers)
def pre_tokenizer(self, replacement, add_prefix_space):
prepend_scheme = _get_prepend_scheme(add_prefix_space, self.original_tokenizer)
return pre_tokenizers.Metaspace(replacement=replacement, prepend_scheme=prepend_scheme)
def post_processor(self):
return None
def decoder(self, replacement, add_prefix_space):
prepend_scheme = _get_prepend_scheme(add_prefix_space, self.original_tokenizer)
return decoders.Metaspace(replacement=replacement, prepend_scheme=prepend_scheme)
def converted(self) -> Tokenizer:
tokenizer = self.tokenizer(self.proto)
# Tokenizer assemble
normalizer = self.normalizer(self.proto)
if normalizer is not None:
tokenizer.normalizer = normalizer
replacement = "▁"
add_prefix_space = True
if hasattr(self.original_tokenizer, "add_prefix_space"):
add_prefix_space = self.original_tokenizer.add_prefix_space
pre_tokenizer = self.pre_tokenizer(replacement, add_prefix_space)
if pre_tokenizer is not None:
tokenizer.pre_tokenizer = pre_tokenizer
tokenizer.decoder = self.decoder(replacement, add_prefix_space)
post_processor = self.post_processor()
if post_processor:
tokenizer.post_processor = post_processor
return tokenizer
class AlbertConverter(SpmConverter):
def vocab(self, proto):
return [
(piece.piece, piece.score) if check_number_comma(piece.piece) else (piece.piece, piece.score - 100)
for piece in proto.pieces
]
def normalizer(self, proto):
list_normalizers = [
normalizers.Replace("``", '"'),
normalizers.Replace("''", '"'),
]
if not self.original_tokenizer.keep_accents:
list_normalizers.append(normalizers.NFKD())
list_normalizers.append(normalizers.StripAccents())
if self.original_tokenizer.do_lower_case:
list_normalizers.append(normalizers.Lowercase())
precompiled_charsmap = proto.normalizer_spec.precompiled_charsmap
if precompiled_charsmap:
list_normalizers.append(normalizers.Precompiled(precompiled_charsmap))
list_normalizers.append(normalizers.Replace(Regex(" {2,}"), " "))
return normalizers.Sequence(list_normalizers)
def post_processor(self):
return processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", self.original_tokenizer.convert_tokens_to_ids("[CLS]")),
("[SEP]", self.original_tokenizer.convert_tokens_to_ids("[SEP]")),
],
)
class BarthezConverter(SpmConverter):
def unk_id(self, proto):
unk_id = 3
return unk_id
def post_processor(self):
return processors.TemplateProcessing(
single="<s> $A </s>",
pair="<s> $A </s> </s> $B </s>",
special_tokens=[
("<s>", self.original_tokenizer.convert_tokens_to_ids("<s>")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class CamembertConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>NOTUSED", 0.0),
("<pad>", 0.0),
("</s>NOTUSED", 0.0),
("<unk>", 0.0),
("<unk>NOTUSED", -100),
]
# We down-grade the original SentencePiece by -100 to avoid using it and use our added token instead
vocab += [(piece.piece, piece.score) for piece in proto.pieces[1:]]
vocab += [("<mask>", 0.0)]
return vocab
def unk_id(self, proto):
# See vocab unk position
return 3
def post_processor(self):
return processors.TemplateProcessing(
single="<s> $A </s>",
pair="<s> $A </s> </s> $B </s>",
special_tokens=[
("<s>", self.original_tokenizer.convert_tokens_to_ids("<s>")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class DebertaV2Converter(SpmConverter):
def pre_tokenizer(self, replacement, add_prefix_space):
list_pretokenizers = []
if self.original_tokenizer.split_by_punct:
list_pretokenizers.append(pre_tokenizers.Punctuation(behavior="isolated"))
prepend_scheme = _get_prepend_scheme(add_prefix_space, self.original_tokenizer)
list_pretokenizers.append(pre_tokenizers.Metaspace(replacement=replacement, prepend_scheme=prepend_scheme))
return pre_tokenizers.Sequence(list_pretokenizers)
def normalizer(self, proto):
list_normalizers = []
if self.original_tokenizer.do_lower_case:
list_normalizers.append(normalizers.Lowercase())
list_normalizers.append(normalizers.Strip())
precompiled_charsmap = proto.normalizer_spec.precompiled_charsmap
if precompiled_charsmap:
list_normalizers.append(normalizers.Precompiled(precompiled_charsmap))
list_normalizers.append(normalizers.Replace(Regex(" {2,}"), " "))
return normalizers.Sequence(list_normalizers)
def post_processor(self):
return processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", self.original_tokenizer.convert_tokens_to_ids("[CLS]")),
("[SEP]", self.original_tokenizer.convert_tokens_to_ids("[SEP]")),
],
)
class MBartConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>", 0.0),
("<pad>", 0.0),
("</s>", 0.0),
("<unk>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
vocab += [
("ar_AR", 0.0),
("cs_CZ", 0.0),
("de_DE", 0.0),
("en_XX", 0.0),
("es_XX", 0.0),
("et_EE", 0.0),
("fi_FI", 0.0),
("fr_XX", 0.0),
("gu_IN", 0.0),
("hi_IN", 0.0),
("it_IT", 0.0),
("ja_XX", 0.0),
("kk_KZ", 0.0),
("ko_KR", 0.0),
("lt_LT", 0.0),
("lv_LV", 0.0),
("my_MM", 0.0),
("ne_NP", 0.0),
("nl_XX", 0.0),
("ro_RO", 0.0),
("ru_RU", 0.0),
("si_LK", 0.0),
("tr_TR", 0.0),
("vi_VN", 0.0),
("zh_CN", 0.0),
]
vocab += [("<mask>", 0.0)]
return vocab
def unk_id(self, proto):
return 3
def post_processor(self):
return processors.TemplateProcessing(
single="$A </s> en_XX",
pair="$A $B </s> en_XX",
special_tokens=[
("en_XX", self.original_tokenizer.convert_tokens_to_ids("en_XX")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class MBart50Converter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>", 0.0),
("<pad>", 0.0),
("</s>", 0.0),
("<unk>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
vocab += [("ar_AR", 0.0), ("cs_CZ", 0.0), ("de_DE", 0.0), ("en_XX", 0.0), ("es_XX", 0.0), ("et_EE", 0.0), ("fi_FI", 0.0), ("fr_XX", 0.0), ("gu_IN", 0.0), ("hi_IN", 0.0), ("it_IT", 0.0), ("ja_XX", 0.0), ("kk_KZ", 0.0), ("ko_KR", 0.0), ("lt_LT", 0.0), ("lv_LV", 0.0), ("my_MM", 0.0), ("ne_NP", 0.0), ("nl_XX", 0.0), ("ro_RO", 0.0), ("ru_RU", 0.0), ("si_LK", 0.0), ("tr_TR", 0.0), ("vi_VN", 0.0), ("zh_CN", 0.0), ("af_ZA", 0.0), ("az_AZ", 0.0), ("bn_IN", 0.0), ("fa_IR", 0.0), ("he_IL", 0.0), ("hr_HR", 0.0), ("id_ID", 0.0), ("ka_GE", 0.0), ("km_KH", 0.0), ("mk_MK", 0.0), ("ml_IN", 0.0), ("mn_MN", 0.0), ("mr_IN", 0.0), ("pl_PL", 0.0), ("ps_AF", 0.0), ("pt_XX", 0.0), ("sv_SE", 0.0), ("sw_KE", 0.0), ("ta_IN", 0.0), ("te_IN", 0.0), ("th_TH", 0.0), ("tl_XX", 0.0), ("uk_UA", 0.0), ("ur_PK", 0.0), ("xh_ZA", 0.0), ("gl_ES", 0.0), ("sl_SI", 0.0)] # fmt: skip
vocab += [("<mask>", 0.0)]
return vocab
def unk_id(self, proto):
return 3
def post_processor(self):
return processors.TemplateProcessing(
single="en_XX $A </s>",
pair="en_XX $A $B </s>",
special_tokens=[
("en_XX", self.original_tokenizer.convert_tokens_to_ids("en_XX")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class NllbConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>", 0.0),
("<pad>", 0.0),
("</s>", 0.0),
("<unk>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
return vocab
def unk_id(self, proto):
return 3
def post_processor(self):
return processors.TemplateProcessing(
single="eng_Latn $A </s>",
pair="eng_Latn $A $B </s>",
special_tokens=[
("eng_Latn", self.original_tokenizer.convert_tokens_to_ids("eng_Latn")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class SeamlessM4TConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<pad>", 0.0),
("<unk>", 0.0),
("<s>", 0.0),
("</s>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
return vocab
def unk_id(self, proto):
return self.original_tokenizer.unk_token_id
def post_processor(self):
return processors.TemplateProcessing(
single="__eng__ $A </s>",
pair="__eng__ $A $B </s>",
special_tokens=[
("__eng__", self.original_tokenizer.convert_tokens_to_ids("__eng__")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class XLMRobertaConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>", 0.0),
("<pad>", 0.0),
("</s>", 0.0),
("<unk>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
vocab += [("<mask>", 0.0)]
return vocab
def unk_id(self, proto):
unk_id = 3
return unk_id
def post_processor(self):
return processors.TemplateProcessing(
single="<s> $A </s>",
pair="<s> $A </s> </s> $B </s>",
special_tokens=[
("<s>", self.original_tokenizer.convert_tokens_to_ids("<s>")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class XLNetConverter(SpmConverter):
def vocab(self, proto):
return [
(piece.piece, piece.score) if check_number_comma(piece.piece) else (piece.piece, piece.score - 100)
for piece in proto.pieces
]
def normalizer(self, proto):
list_normalizers = [
normalizers.Replace("``", '"'),
normalizers.Replace("''", '"'),
]
if not self.original_tokenizer.keep_accents:
list_normalizers.append(normalizers.NFKD())
list_normalizers.append(normalizers.StripAccents())
if self.original_tokenizer.do_lower_case:
list_normalizers.append(normalizers.Lowercase())
precompiled_charsmap = proto.normalizer_spec.precompiled_charsmap
if precompiled_charsmap:
list_normalizers.append(normalizers.Precompiled(precompiled_charsmap))
list_normalizers.append(normalizers.Replace(Regex(" {2,}"), " "))
return normalizers.Sequence(list_normalizers)
def post_processor(self):
return processors.TemplateProcessing(
single="$A:0 <sep>:0 <cls>:2",
pair="$A:0 <sep>:0 $B:1 <sep>:1 <cls>:2",
special_tokens=[
("<sep>", self.original_tokenizer.convert_tokens_to_ids("<sep>")),
("<cls>", self.original_tokenizer.convert_tokens_to_ids("<cls>")),
],
)
class ReformerConverter(SpmConverter):
pass
class RemBertConverter(SpmConverter):
# Inspired from AlbertConverter
def normalizer(self, proto):
list_normalizers = [
normalizers.Replace("``", '"'),
normalizers.Replace("''", '"'),
normalizers.Replace(Regex(" {2,}"), " "),
]
if not self.original_tokenizer.keep_accents:
list_normalizers.append(normalizers.NFKD())
list_normalizers.append(normalizers.StripAccents())
if self.original_tokenizer.do_lower_case:
list_normalizers.append(normalizers.Lowercase())
precompiled_charsmap = proto.normalizer_spec.precompiled_charsmap
if precompiled_charsmap:
list_normalizers.append(normalizers.Precompiled(precompiled_charsmap))
return normalizers.Sequence(list_normalizers)
def post_processor(self):
return processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", self.original_tokenizer.convert_tokens_to_ids("[CLS]")),
("[SEP]", self.original_tokenizer.convert_tokens_to_ids("[SEP]")),
],
)
class BertGenerationConverter(SpmConverter):
pass
class PegasusConverter(SpmConverter):
def vocab(self, proto):
vocab = [
(self.original_tokenizer.pad_token, 0.0),
(self.original_tokenizer.eos_token, 0.0),
]
if self.original_tokenizer.mask_token_sent is not None:
vocab += [(self.original_tokenizer.mask_token_sent, 0.0)]
if (
self.original_tokenizer.mask_token is not None
and self.original_tokenizer.mask_token_id < self.original_tokenizer.offset
):
vocab += [(self.original_tokenizer.mask_token, 0.0)]
vocab += [(f"<unk_{i}>", -100.0) for i in range(2, self.original_tokenizer.offset)]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[2:]]
return vocab
def unk_id(self, proto):
return proto.trainer_spec.unk_id + self.original_tokenizer.offset
def pre_tokenizer(self, replacement, add_prefix_space):
prepend_scheme = _get_prepend_scheme(add_prefix_space, self.original_tokenizer)
return pre_tokenizers.Sequence(
[
pre_tokenizers.WhitespaceSplit(),
pre_tokenizers.Metaspace(replacement=replacement, prepend_scheme=prepend_scheme),
]
)
def post_processor(self):
eos = self.original_tokenizer.eos_token
special_tokens = [
(eos, self.original_tokenizer.eos_token_id),
]
return processors.TemplateProcessing(single=["$A", eos], pair=["$A", "$B", eos], special_tokens=special_tokens)
class T5Converter(SpmConverter):
def vocab(self, proto):
num_extra_ids = self.original_tokenizer._extra_ids
vocab = [(piece.piece, piece.score) for piece in proto.pieces]
vocab += [(f"<extra_id_{i}>", 0.0) for i in range(num_extra_ids - 1, -1, -1)]
return vocab
def post_processor(self):
return processors.TemplateProcessing(
single=["$A", "</s>"],
pair=["$A", "</s>", "$B", "</s>"],
special_tokens=[
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class UdopConverter(SpmConverter):
def post_processor(self):
return processors.TemplateProcessing(
single=["$A", "</s>"],
pair=["$A", "</s>", "$B", "</s>"],
special_tokens=[
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class WhisperConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=self.original_tokenizer.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
prefix_token_ids = self.original_tokenizer.prefix_tokens
prefixes = self.original_tokenizer.convert_ids_to_tokens(prefix_token_ids)
eos = self.original_tokenizer.eos_token
eos_token_id = self.original_tokenizer.eos_token_id
prefix_template = " ".join([f"{token}:0" for token in prefixes])
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{prefix_template} $A:0 {eos}:0",
pair=f"{prefix_template} $A:0 $B:1 {eos}:1",
special_tokens=[
(eos, eos_token_id),
*zip(prefixes, prefix_token_ids),
],
)
return tokenizer
class BigBirdConverter(SpmConverter):
def post_processor(self):
return processors.TemplateProcessing(
single="[CLS]:0 $A:0 [SEP]:0",
pair="[CLS]:0 $A:0 [SEP]:0 $B:1 [SEP]:1",
special_tokens=[
("[CLS]", self.original_tokenizer.convert_tokens_to_ids("[CLS]")),
("[SEP]", self.original_tokenizer.convert_tokens_to_ids("[SEP]")),
],
)
class CLIPConverter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.encoder
merges = list(self.original_tokenizer.bpe_ranks.keys())
unk_token = self.original_tokenizer.unk_token
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="</w>",
fuse_unk=False,
unk_token=str(unk_token),
)
)
tokenizer.normalizer = normalizers.Sequence(
[normalizers.NFC(), normalizers.Replace(Regex(r"\s+"), " "), normalizers.Lowercase()]
)
tokenizer.pre_tokenizer = pre_tokenizers.Sequence(
[
pre_tokenizers.Split(
Regex(r"""'s|'t|'re|'ve|'m|'ll|'d|[\p{L}]+|[\p{N}]|[^\s\p{L}\p{N}]+"""),
behavior="removed",
invert=True,
),
pre_tokenizers.ByteLevel(add_prefix_space=False),
]
)
tokenizer.decoder = decoders.ByteLevel()
# Hack to have a ByteLevel and TemplaceProcessor
tokenizer.post_processor = processors.RobertaProcessing(
sep=(self.original_tokenizer.eos_token, self.original_tokenizer.eos_token_id),
cls=(self.original_tokenizer.bos_token, self.original_tokenizer.bos_token_id),
add_prefix_space=False,
trim_offsets=False,
)
return tokenizer
class LayoutLMv2Converter(Converter):
def converted(self) -> Tokenizer:
vocab = self.original_tokenizer.vocab
tokenizer = Tokenizer(WordPiece(vocab, unk_token=str(self.original_tokenizer.unk_token)))
tokenize_chinese_chars = False
strip_accents = False
do_lower_case = True
if hasattr(self.original_tokenizer, "basic_tokenizer"):
tokenize_chinese_chars = self.original_tokenizer.basic_tokenizer.tokenize_chinese_chars
strip_accents = self.original_tokenizer.basic_tokenizer.strip_accents
do_lower_case = self.original_tokenizer.basic_tokenizer.do_lower_case
tokenizer.normalizer = normalizers.BertNormalizer(
clean_text=True,
handle_chinese_chars=tokenize_chinese_chars,
strip_accents=strip_accents,
lowercase=do_lower_case,
)
tokenizer.pre_tokenizer = pre_tokenizers.BertPreTokenizer()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls}:0 $A:0 {sep}:0",
pair=f"{cls}:0 $A:0 {sep}:0 $B:1 {sep}:1",
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
tokenizer.decoder = decoders.WordPiece(prefix="##")
return tokenizer
class BlenderbotConverter(Converter):
def converted(self) -> Tokenizer:
ot = self.original_tokenizer
vocab = ot.encoder
merges = list(ot.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=ot.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
tokenizer.post_processor = processors.TemplateProcessing(
single=f"$A:0 {ot.eos_token}:0",
special_tokens=[
(ot.eos_token, ot.eos_token_id),
],
)
return tokenizer
class XGLMConverter(SpmConverter):
def vocab(self, proto):
vocab = [
("<s>", 0.0),
("<pad>", 0.0),
("</s>", 0.0),
("<unk>", 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
vocab += [("<madeupword0>", 0.0), ("<madeupword1>", 0.0), ("<madeupword2>", 0.0), ("<madeupword3>", 0.0), ("<madeupword4>", 0.0), ("<madeupword5>", 0.0), ("<madeupword6>", 0.0)] # fmt: skip
return vocab
def unk_id(self, proto):
unk_id = 3
return unk_id
def post_processor(self):
return processors.TemplateProcessing(
single="</s> $A",
pair="</s> $A </s> </s> $B",
special_tokens=[
("<s>", self.original_tokenizer.convert_tokens_to_ids("<s>")),
("</s>", self.original_tokenizer.convert_tokens_to_ids("</s>")),
],
)
class GemmaConvert(SpmConverter):
handle_byte_fallback = True
""""
split_by_unicode_script: true
split_by_number: true
split_by_whitespace: true
treat_whitespace_as_suffix: false
allow_whitespace_only_pieces: true
split_digits: true
byte_fallback: true
"""
def normalizer(self, proto):
return normalizers.Replace(" ", "▁")
def vocab(self, proto):
vocab = [
(self.original_tokenizer.pad_token, 0.0),
(self.original_tokenizer.eos_token, 0.0),
(self.original_tokenizer.bos_token, 0.0),
]
for piece in proto.pieces[3:]:
if piece.piece == "<0x09>":
vocab += [("\t", piece.score)]
else:
vocab += [(piece.piece, piece.score)]
# vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
return vocab
def pre_tokenizer(self, replacement, add_prefix_space):
return pre_tokenizers.Split(" ", "merged_with_previous")
def unk_id(self, proto):
unk_id = 3
return unk_id
def decoder(self, replacement, add_prefix_space):
return decoders.Sequence(
[
decoders.Replace("▁", " "),
decoders.ByteFallback(),
decoders.Fuse(),
]
)
def tokenizer(self, proto):
model_type = proto.trainer_spec.model_type
vocab_scores = self.vocab(proto)
if model_type == 1:
import tokenizers
if version.parse(tokenizers.__version__) < version.parse("0.14.0"):
tokenizer = Tokenizer(Unigram(vocab_scores, 0))
else:
tokenizer = Tokenizer(Unigram(vocab_scores, 0, byte_fallback=True))
elif model_type == 2:
_, merges = GemmaSentencePieceExtractor(self.original_tokenizer.vocab_file).extract(vocab_scores)
bpe_vocab = {word: i for i, (word, _score) in enumerate(vocab_scores)}
tokenizer = Tokenizer(
BPE(
bpe_vocab,
merges,
unk_token=proto.trainer_spec.unk_piece,
fuse_unk=True,
byte_fallback=True,
dropout=None,
)
)
tokenizer.add_special_tokens(
[
AddedToken("<pad>", normalized=False, special=True),
AddedToken("<eos>", normalized=False, special=True),
AddedToken("<bos>", normalized=False, special=True),
AddedToken("<unk>", normalized=False, special=True),
]
)
else:
raise Exception(
"You're trying to run a `Unigram` model but you're file was trained with a different algorithm"
)
user_defined_symbols = [
AddedToken(token, normalized=True, special=False) for token in proto.trainer_spec.user_defined_symbols
]
tokenizer.add_tokens(user_defined_symbols)
return tokenizer
class LlamaConverter(SpmConverter):
handle_byte_fallback = True
def vocab(self, proto):
vocab = [
(self.original_tokenizer.convert_ids_to_tokens(0), 0.0),
(self.original_tokenizer.convert_ids_to_tokens(1), 0.0),
(self.original_tokenizer.convert_ids_to_tokens(2), 0.0),
]
vocab += [(piece.piece, piece.score) for piece in proto.pieces[3:]]
return vocab
def unk_id(self, proto):
unk_id = 0
return unk_id
def decoder(self, replacement, add_prefix_space):
sequence = [
decoders.Replace("▁", " "),
decoders.ByteFallback(),
decoders.Fuse(),
]
if add_prefix_space:
sequence += [decoders.Strip(content=" ", left=1)]
return decoders.Sequence(sequence)
def tokenizer(self, proto):
model_type = proto.trainer_spec.model_type
vocab_scores = self.vocab(proto)
if model_type == 1:
import tokenizers
if version.parse(tokenizers.__version__) < version.parse("0.14.0"):
tokenizer = Tokenizer(Unigram(vocab_scores, 0))
else:
tokenizer = Tokenizer(Unigram(vocab_scores, 0, byte_fallback=True))
elif model_type == 2:
_, merges = SentencePieceExtractor(self.original_tokenizer.vocab_file).extract(vocab_scores)
bpe_vocab = {word: i for i, (word, _score) in enumerate(vocab_scores)}
tokenizer = Tokenizer(
BPE(bpe_vocab, merges, unk_token=proto.trainer_spec.unk_piece, fuse_unk=True, byte_fallback=True)
)
tokenizer.add_special_tokens(
[
AddedToken(self.original_tokenizer.convert_ids_to_tokens(0), normalized=False, special=True),
AddedToken(self.original_tokenizer.convert_ids_to_tokens(1), normalized=False, special=True),
AddedToken(self.original_tokenizer.convert_ids_to_tokens(2), normalized=False, special=True),
]
)
else:
raise Exception(
"You're trying to run a `Unigram` model but you're file was trained with a different algorithm"
)
return tokenizer
def normalizer(self, proto):
if getattr(self.original_tokenizer, "legacy", True):
sequence = []
if getattr(self.original_tokenizer, "add_prefix_space", True):
sequence += [normalizers.Prepend(prepend="▁")]
sequence += [normalizers.Replace(pattern=" ", content="▁")]
return normalizers.Sequence(sequence)
return None # non-legacy, no normalizer
def pre_tokenizer(self, replacement, add_prefix_space):
if not getattr(self.original_tokenizer, "legacy", True): # non-legacy, we need a replace
prepend_scheme = _get_prepend_scheme(add_prefix_space, self.original_tokenizer)
return pre_tokenizers.Metaspace(replacement=replacement, prepend_scheme=prepend_scheme, split=False)
return None
def post_processor(self):
# the processor is defined in the LlamaTokenizerFast class.
return None
class MarkupLMConverter(Converter):
def converted(self) -> Tokenizer:
ot = self.original_tokenizer
vocab = ot.encoder
merges = list(ot.bpe_ranks.keys())
tokenizer = Tokenizer(
BPE(
vocab=vocab,
merges=merges,
dropout=None,
continuing_subword_prefix="",
end_of_word_suffix="",
fuse_unk=False,
unk_token=self.original_tokenizer.unk_token,
)
)
tokenizer.pre_tokenizer = pre_tokenizers.ByteLevel(add_prefix_space=ot.add_prefix_space)
tokenizer.decoder = decoders.ByteLevel()
cls = str(self.original_tokenizer.cls_token)
sep = str(self.original_tokenizer.sep_token)
cls_token_id = self.original_tokenizer.cls_token_id
sep_token_id = self.original_tokenizer.sep_token_id
tokenizer.post_processor = processors.TemplateProcessing(
single=f"{cls} $A {sep}",
pair=f"{cls} $A {sep} $B {sep}",
special_tokens=[
(cls, cls_token_id),
(sep, sep_token_id),
],
)
return tokenizer
# Copied from transformers.models.gpt2.tokenization_gpt2.bytes_to_unicode
def bytes_to_unicode():
"""
Returns list of utf-8 byte and a mapping to unicode strings. We specifically avoids mapping to whitespace/control
characters the bpe code barfs on.
The reversible bpe codes work on unicode strings. This means you need a large # of unicode characters in your vocab
if you want to avoid UNKs. When you're at something like a 10B token dataset you end up needing around 5K for
decent coverage. This is a significant percentage of your normal, say, 32K bpe vocab. To avoid that, we want lookup
tables between utf-8 bytes and unicode strings.
"""
bs = (
list(range(ord("!"), ord("~") + 1)) + list(range(ord("¡"), ord("¬") + 1)) + list(range(ord("®"), ord("ÿ") + 1))
)
cs = bs[:]
n = 0
for b in range(2**8):
if b not in bs:
bs.append(b)
cs.append(2**8 + n)
n += 1
cs = [chr(n) for n in cs]
return dict(zip(bs, cs))
class TikTokenConverter:
"""
A general tiktoken converter.
"""
def __init__(
self,
vocab_file=None,
pattern=r"""(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+""",
add_prefix_space=False,
*args,
):
super().__init__(*args)
self.vocab_file = vocab_file
self.pattern = pattern
self.add_prefix_space = add_prefix_space
def extract_vocab_merges_from_model(self, tiktoken_url: str):
try:
from tiktoken.load import load_tiktoken_bpe
except Exception:
raise ValueError(
"`tiktoken` is required to read a `tiktoken` file. Install it with " "`pip install tiktoken`."
)
bpe_ranks = load_tiktoken_bpe(tiktoken_url)
byte_encoder = bytes_to_unicode()
def token_bytes_to_string(b):
return "".join([byte_encoder[ord(char)] for char in b.decode("latin-1")])
merges = []
vocab = {}
for token, rank in bpe_ranks.items():
vocab[token_bytes_to_string(token)] = rank
if len(token) == 1:
continue
local = []
for index in range(1, len(token)):
piece_l, piece_r = token[:index], token[index:]
if piece_l in bpe_ranks and piece_r in bpe_ranks and (piece_l + piece_r) in bpe_ranks:
local.append((piece_l, piece_r, rank))
local = sorted(local, key=lambda x: (bpe_ranks[x[0]], bpe_ranks[x[1]]), reverse=False)
merges.extend(local)
merges = sorted(merges, key=lambda val: val[2], reverse=False)
merges = [(token_bytes_to_string(val[0]), token_bytes_to_string(val[1])) for val in merges]
return vocab, merges
def tokenizer(self):
vocab_scores, merges = self.extract_vocab_merges_from_model(self.vocab_file)
tokenizer = Tokenizer(BPE(vocab_scores, merges, fuse_unk=False))
if hasattr(tokenizer.model, "ignore_merges"):
tokenizer.model.ignore_merges = True
return tokenizer
def converted(self) -> Tokenizer:
tokenizer = self.tokenizer()
tokenizer.pre_tokenizer = pre_tokenizers.Sequence(
[
pre_tokenizers.Split(Regex(self.pattern), behavior="isolated", invert=False),
pre_tokenizers.ByteLevel(add_prefix_space=self.add_prefix_space, use_regex=False),
]
)
tokenizer.decoder = decoders.ByteLevel()
tokenizer.post_processor = processors.ByteLevel(trim_offsets=False)
return tokenizer
SLOW_TO_FAST_CONVERTERS = {
"AlbertTokenizer": AlbertConverter,
"BartTokenizer": RobertaConverter,
"BarthezTokenizer": BarthezConverter,
"BertTokenizer": BertConverter,
"BigBirdTokenizer": BigBirdConverter,
"BlenderbotTokenizer": BlenderbotConverter,
"CamembertTokenizer": CamembertConverter,
"CLIPTokenizer": CLIPConverter,
"CodeGenTokenizer": GPT2Converter,
"ConvBertTokenizer": BertConverter,
"DebertaTokenizer": DebertaConverter,
"DebertaV2Tokenizer": DebertaV2Converter,
"DistilBertTokenizer": BertConverter,
"DPRReaderTokenizer": BertConverter,
"DPRQuestionEncoderTokenizer": BertConverter,
"DPRContextEncoderTokenizer": BertConverter,
"ElectraTokenizer": BertConverter,
"FNetTokenizer": AlbertConverter,
"FunnelTokenizer": FunnelConverter,
"GPT2Tokenizer": GPT2Converter,
"HerbertTokenizer": HerbertConverter,
"LayoutLMTokenizer": BertConverter,
"LayoutLMv2Tokenizer": BertConverter,
"LayoutLMv3Tokenizer": RobertaConverter,
"LayoutXLMTokenizer": XLMRobertaConverter,
"LongformerTokenizer": RobertaConverter,
"LEDTokenizer": RobertaConverter,
"LxmertTokenizer": BertConverter,
"MarkupLMTokenizer": MarkupLMConverter,
"MBartTokenizer": MBartConverter,
"MBart50Tokenizer": MBart50Converter,
"MPNetTokenizer": MPNetConverter,
"MobileBertTokenizer": BertConverter,
"MvpTokenizer": RobertaConverter,
"NllbTokenizer": NllbConverter,
"OpenAIGPTTokenizer": OpenAIGPTConverter,
"PegasusTokenizer": PegasusConverter,
"Qwen2Tokenizer": Qwen2Converter,
"RealmTokenizer": BertConverter,
"ReformerTokenizer": ReformerConverter,
"RemBertTokenizer": RemBertConverter,
"RetriBertTokenizer": BertConverter,
"RobertaTokenizer": RobertaConverter,
"RoFormerTokenizer": RoFormerConverter,
"SeamlessM4TTokenizer": SeamlessM4TConverter,
"SqueezeBertTokenizer": BertConverter,
"T5Tokenizer": T5Converter,
"UdopTokenizer": UdopConverter,
"WhisperTokenizer": WhisperConverter,
"XLMRobertaTokenizer": XLMRobertaConverter,
"XLNetTokenizer": XLNetConverter,
"SplinterTokenizer": SplinterConverter,
"XGLMTokenizer": XGLMConverter,
"LlamaTokenizer": LlamaConverter,
"CodeLlamaTokenizer": LlamaConverter,
"GemmaTokenizer": GemmaConvert,
}
def convert_slow_tokenizer(transformer_tokenizer) -> Tokenizer:
"""
Utilities to convert a slow tokenizer instance in a fast tokenizer instance.
Args:
transformer_tokenizer ([`~tokenization_utils_base.PreTrainedTokenizer`]):
Instance of a slow tokenizer to convert in the backend tokenizer for
[`~tokenization_utils_base.PreTrainedTokenizerFast`].
Return:
A instance of [`~tokenizers.Tokenizer`] to be used as the backend tokenizer of a
[`~tokenization_utils_base.PreTrainedTokenizerFast`]
"""
tokenizer_class_name = transformer_tokenizer.__class__.__name__
if tokenizer_class_name not in SLOW_TO_FAST_CONVERTERS:
raise ValueError(
f"An instance of tokenizer class {tokenizer_class_name} cannot be converted in a Fast tokenizer instance."
" No converter was found. Currently available slow->fast convertors:"
f" {list(SLOW_TO_FAST_CONVERTERS.keys())}"
)
converter_class = SLOW_TO_FAST_CONVERTERS[tokenizer_class_name]
return converter_class(transformer_tokenizer).converted()
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