Spaces:
Runtime error
Runtime error
File size: 28,689 Bytes
1e744c4 40311b7 e8762f9 1e744c4 d0c7a01 1e744c4 d0c7a01 1e744c4 8e80889 1e744c4 d0c7a01 1e744c4 d0c7a01 1e744c4 40311b7 d0c7a01 40311b7 43d9f32 8e80889 40311b7 8e80889 4e2f72e 40311b7 d0c7a01 40311b7 8e80889 d0c7a01 8e80889 d0c7a01 40311b7 d0c7a01 40311b7 8e80889 1e744c4 40311b7 8e80889 40311b7 8e80889 d0c7a01 40311b7 1e744c4 8e80889 1e744c4 40311b7 1e744c4 40311b7 4e2f72e 1e744c4 e8762f9 8e80889 d0c7a01 e8762f9 1e744c4 40311b7 1e744c4 40311b7 4e2f72e 1e744c4 e8762f9 d0c7a01 e8762f9 8e80889 1e744c4 40311b7 1e744c4 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 |
import os
import warnings
import huggingface_hub
import requests
import torch
import ctranslate2
import transformers
import traceback
from typing import Optional
from src.config import ModelConfig
from src.translation.translationLangs import TranslationLang, get_lang_from_whisper_code
class TranslationModel:
def __init__(
self,
modelConfig: ModelConfig,
device: str = None,
whisperLang: TranslationLang = None,
translationLang: TranslationLang = None,
batchSize: int = 2,
noRepeatNgramSize: int = 3,
numBeams: int = 2,
torchDtypeFloat16: bool = True,
downloadRoot: Optional[str] = None,
localFilesOnly: bool = False,
loadModel: bool = False,
):
"""Initializes the M2M100 / Nllb-200 / mt5 / ALMA / madlad400 translation model.
Args:
modelConfig: Config of the model to use (distilled-600M, distilled-1.3B,
1.3B, 3.3B...) or a path to a converted
model directory. When a size is configured, the converted model is downloaded
from the Hugging Face Hub.
device: Device to use for computation (cpu, cuda, ipu, xpu, mkldnn, opengl, opencl,
ideep, hip, ve, fpga, ort, xla, lazy, vulkan, mps, meta, hpu, mtia).
device_index: Device ID to use.
The model can also be loaded on multiple GPUs by passing a list of IDs
(e.g. [0, 1, 2, 3]). In that case, multiple transcriptions can run in parallel
when transcribe() is called from multiple Python threads (see also num_workers).
compute_type: Type to use for computation.
See https://opennmt.net/CTranslate2/quantization.html.
cpu_threads: Number of threads to use when running on CPU (4 by default).
A non zero value overrides the OMP_NUM_THREADS environment variable.
num_workers: When transcribe() is called from multiple Python threads,
having multiple workers enables true parallelism when running the model
(concurrent calls to self.model.generate() will run in parallel).
This can improve the global throughput at the cost of increased memory usage.
downloadRoot: Directory where the models should be saved. If not set, the models
are saved in the standard Hugging Face cache directory.
localFilesOnly: If True, avoid downloading the file and return the path to the
local cached file if it exists.
"""
self.modelConfig = modelConfig
self.whisperLang = whisperLang # self.translationLangWhisper = get_lang_from_whisper_code(whisperLang.code.lower() if whisperLang is not None else "en")
self.translationLang = translationLang
if translationLang is None:
return
self.batchSize = batchSize
self.noRepeatNgramSize = noRepeatNgramSize
self.numBeams = numBeams
if os.path.isdir(modelConfig.url):
self.modelPath = modelConfig.url
else:
self.modelPath = modelConfig.url if getattr(modelConfig, "model_file", None) is not None else download_model(
modelConfig,
localFilesOnly=localFilesOnly,
cacheDir=downloadRoot,
)
if device is None:
if torch.cuda.is_available():
device = "cuda" if "ct2" in self.modelPath else "cuda:0"
else:
device = "cpu"
torchDtypeFloat16 = False
self.device = device
self.torchDtypeFloat16 = torchDtypeFloat16
if loadModel:
self.load_model()
def load_model(self):
"""
[from_pretrained]
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.
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.
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.
load_in_8bit (bool, optional, defaults to False)
If True, will convert the loaded model into mixed-8bit quantized model. To use this feature please install bitsandbytes (pip install -U bitsandbytes).
load_in_4bit (bool, optional, defaults to False)
If True, will convert the loaded model into 4bit precision quantized model. To use this feature install the latest version of bitsandbytes (pip install -U bitsandbytes).
[transformers.AutoTokenizer.from_pretrained]
use_fast (bool, optional, defaults to True):
Use a fast Rust-based tokenizer if it is supported for a given model.
If a fast tokenizer is not available for a given model, a normal Python-based tokenizer is returned instead.
[transformers.AutoModelForCausalLM.from_pretrained]
device_map (str or Dict[str, Union[int, str, torch.device], optional):
Sent directly as model_kwargs (just a simpler shortcut). When accelerate library is present,
set device_map="auto" to compute the most optimized device_map automatically.
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.
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.
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.
[transformers.pipeline "text-generation"]
do_sample:
if set to True, this parameter enables decoding strategies such as multinomial sampling,
beam-search multinomial sampling, Top-K sampling and Top-p sampling.
All these strategies select the next token from the probability distribution
over the entire vocabulary with various strategy-specific adjustments.
temperature (float, optional, defaults to 1.0):
The value used to modulate the next token probabilities.
top_k (int, optional, defaults to 50):
The number of highest probability vocabulary tokens to keep for top-k-filtering.
top_p (float, optional, defaults to 1.0):
If set to float < 1, only the smallest set of most probable tokens with probabilities that add up to top_p or higher are kept for generation.
repetition_penalty (float, optional, defaults to 1.0)
The parameter for repetition penalty. 1.0 means no penalty. See this paper for more details.
[transformers.GPTQConfig]
use_exllama (bool, optional):
Whether to use exllama backend. Defaults to True if unset. Only works with bits = 4.
[ExLlama]
ExLlama is a Python/C++/CUDA implementation of the Llama model that is designed for faster inference with 4-bit GPTQ weights (check out these benchmarks).
The ExLlama kernel is activated by default when you create a [GPTQConfig] object.
To boost inference speed even further, use the ExLlamaV2 kernels by configuring the exllama_config parameter.
The ExLlama kernels are only supported when the entire model is on the GPU.
If you're doing inference on a CPU with AutoGPTQ (version > 0.4.2), then you'll need to disable the ExLlama kernel.
This overwrites the attributes related to the ExLlama kernels in the quantization config of the config.json file.
https://github.com/huggingface/transformers/blob/main/docs/source/en/quantization.md#exllama
[ctransformers]
gpu_layers
means number of layers to run on GPU. Depending on how much GPU memory is available you can increase gpu_layers. Start with a larger value gpu_layers=100 and if it runs out of memory, try smaller values.
To run some of the model layers on GPU, set the `gpu_layers` parameter
https://github.com/marella/ctransformers/issues/68
"""
try:
print('\n\nLoading model: %s\n\n' % self.modelPath)
if "ct2" in self.modelPath:
if any(name in self.modelPath for name in ["nllb", "m2m100"]):
if "nllb" in self.modelPath:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelConfig.tokenizer_url if self.modelConfig.tokenizer_url is not None and len(self.modelConfig.tokenizer_url) > 0 else self.modelPath, src_lang=self.whisperLang.nllb.code)
self.targetPrefix = [self.translationLang.nllb.code]
elif "m2m100" in self.modelPath:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelConfig.tokenizer_url if self.modelConfig.tokenizer_url is not None and len(self.modelConfig.tokenizer_url) > 0 else self.modelPath, src_lang=self.whisperLang.m2m100.code)
self.targetPrefix = [self.transTokenizer.lang_code_to_token[self.translationLang.m2m100.code]]
self.transModel = ctranslate2.Translator(self.modelPath, compute_type="auto", device=self.device)
elif "ALMA" in self.modelPath:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelConfig.tokenizer_url if self.modelConfig.tokenizer_url is not None and len(self.modelConfig.tokenizer_url) > 0 else self.modelPath)
self.ALMAPrefix = "Translate this from " + self.whisperLang.whisper.names[0] + " to " + self.translationLang.whisper.names[0] + ":\n" + self.whisperLang.whisper.names[0] + ": "
self.transModel = ctranslate2.Generator(self.modelPath, compute_type="auto", device=self.device)
elif "madlad400" in self.modelPath:
self.madlad400Prefix = "<2" + self.translationLang.whisper.code + "> "
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelConfig.tokenizer_url if self.modelConfig.tokenizer_url is not None and len(self.modelConfig.tokenizer_url) > 0 else self.modelPath, src_lang=self.whisperLang.m2m100.code)
self.transModel = ctranslate2.Translator(self.modelPath, compute_type="auto", device=self.device)
elif "mt5" in self.modelPath:
self.mt5Prefix = self.whisperLang.whisper.code + "2" + self.translationLang.whisper.code + ": "
self.transTokenizer = transformers.T5Tokenizer.from_pretrained(self.modelPath, legacy=False) #requires spiece.model
self.transModel = transformers.MT5ForConditionalGeneration.from_pretrained(self.modelPath, low_cpu_mem_usage=True, torch_dtype=torch.float16 if self.torchDtypeFloat16 else "auto")
self.transTranslator = transformers.pipeline('text2text-generation', model=self.transModel, device=self.device, tokenizer=self.transTokenizer)
elif "ALMA" in self.modelPath:
self.ALMAPrefix = "Translate this from " + self.whisperLang.whisper.names[0] + " to " + self.translationLang.whisper.names[0] + ":\n" + self.whisperLang.whisper.names[0] + ": "
if "GPTQ" in self.modelPath:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelPath, use_fast=True)
if self.device == "cpu":
# Due to the poor support of GPTQ for CPUs, Therefore, it is strongly discouraged to operate it on CPU.
# set torch_dtype=torch.float32 to prevent the occurrence of the exception "addmm_impl_cpu_ not implemented for 'Half'."
transModelConfig = transformers.AutoConfig.from_pretrained(self.modelPath)
transModelConfig.quantization_config["use_exllama"] = False
self.transModel = transformers.AutoModelForCausalLM.from_pretrained(self.modelPath, device_map="auto", low_cpu_mem_usage=True, trust_remote_code=False, revision=self.modelConfig.revision, config=transModelConfig, torch_dtype=torch.float32)
else:
# transModelConfig.quantization_config["exllama_config"] = {"version":2} # After configuring to use ExLlamaV2, VRAM cannot be effectively released, which may be an issue. Temporarily not adopting the V2 version.
self.transModel = transformers.AutoModelForCausalLM.from_pretrained(self.modelPath, device_map="auto", low_cpu_mem_usage=True, trust_remote_code=False, revision=self.modelConfig.revision)
elif "GGUF" in self.modelPath:
import ctransformers
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelConfig.tokenizer_url)
if self.device == "cpu":
self.transModel = ctransformers.AutoModelForCausalLM.from_pretrained(self.modelPath, hf=True, model_file=self.modelConfig.model_file, low_cpu_mem_usage=True)
else:
self.transModel = ctransformers.AutoModelForCausalLM.from_pretrained(self.modelPath, hf=True, model_file=self.modelConfig.model_file, gpu_layers=50, low_cpu_mem_usage=True)
else:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelPath, use_fast=True)
self.transModel = transformers.AutoModelForCausalLM.from_pretrained(self.modelPath, torch_dtype=torch.float16 if self.torchDtypeFloat16 else "auto", low_cpu_mem_usage=True) #, device_map="auto"
self.transTranslator = transformers.pipeline("text-generation", model=self.transModel, device=self.device if "GPTQ" not in self.modelPath and "GGUF" not in self.modelPath else None, tokenizer=self.transTokenizer, do_sample=True, temperature=0.7, top_k=40, top_p=0.95, repetition_penalty=1.1)
elif "madlad400" in self.modelPath:
self.madlad400Prefix = "<2" + self.translationLang.whisper.code + "> "
self.transTokenizer = transformers.T5Tokenizer.from_pretrained(self.modelPath, legacy=False)
self.transModel = transformers.T5ForConditionalGeneration.from_pretrained(self.modelPath, torch_dtype=torch.float16 if self.torchDtypeFloat16 else "auto", low_cpu_mem_usage=True) #, device_map="auto"
self.transTranslator = transformers.pipeline('text2text-generation', model=self.transModel, device=self.device, tokenizer=self.transTokenizer)
else:
self.transTokenizer = transformers.AutoTokenizer.from_pretrained(self.modelPath)
self.transModel = transformers.AutoModelForSeq2SeqLM.from_pretrained(self.modelPath, torch_dtype=torch.float16 if self.torchDtypeFloat16 else "auto")
if "m2m100" in self.modelPath:
self.transTranslator = transformers.pipeline('translation', model=self.transModel, device=self.device, tokenizer=self.transTokenizer, src_lang=self.whisperLang.m2m100.code, tgt_lang=self.translationLang.m2m100.code)
else: #NLLB
self.transTranslator = transformers.pipeline('translation', model=self.transModel, device=self.device, tokenizer=self.transTokenizer, src_lang=self.whisperLang.nllb.code, tgt_lang=self.translationLang.nllb.code)
except Exception as e:
self.release_vram()
raise e
def release_vram(self):
try:
if torch.cuda.is_available():
if "ct2" not in self.modelPath:
try:
if getattr(self, "transModel", None) is not None:
device = torch.device("cpu")
self.transModel.to(device)
except Exception as e:
print(traceback.format_exc())
print("\tself.transModel.to cpu, error: " + str(e))
if getattr(self, "transTranslator", None) is not None:
del self.transTranslator
if "ct2" in self.modelPath:
if getattr(self, "transModel", None) is not None and getattr(self.transModel, "unload_model", None) is not None:
self.transModel.unload_model()
if getattr(self, "transTokenizer", None) is not None:
del self.transTokenizer
if getattr(self, "transModel", None) is not None:
del self.transModel
import gc
gc.collect()
try:
torch.cuda.empty_cache()
except Exception as e:
print(traceback.format_exc())
print("\tcuda empty cache, error: " + str(e))
print("release vram end.")
except Exception as e:
print(traceback.format_exc())
print("Error release vram: " + str(e))
def translation(self, text: str, max_length: int = 400):
"""
[ctranslate2]
max_batch_size:
The maximum batch size. If the number of inputs is greater than max_batch_size,
the inputs are sorted by length and split by chunks of max_batch_size examples
so that the number of padding positions is minimized.
no_repeat_ngram_size:
Prevent repetitions of ngrams with this size (set 0 to disable).
beam_size:
Beam size (1 for greedy search).
[ctranslate2.Generator.generate_batch]
sampling_temperature:
Sampling temperature to generate more random samples.
sampling_topk:
Randomly sample predictions from the top K candidates.
sampling_topp:
Keep the most probable tokens whose cumulative probability exceeds this value.
repetition_penalty:
Penalty applied to the score of previously generated tokens (set > 1 to penalize).
include_prompt_in_result:
Include the start_tokens in the result.
If include_prompt_in_result is True (the default), the decoding loop is constrained to generate the start tokens that are then included in the result.
If include_prompt_in_result is False, the start tokens are forwarded in the decoder at once to initialize its state (i.e. the KV cache for Transformer models).
For variable-length inputs, only the tokens up to the minimum length in the batch are forwarded at once. The remaining tokens are generated in the decoding loop with constrained decoding.
[transformers.TextGenerationPipeline.__call__]
return_full_text (bool, optional, defaults to True):
If set to False only added text is returned, otherwise the full text is returned. Only meaningful if return_text is set to True.
"""
output = None
result = None
try:
if "ct2" in self.modelPath:
if any(name in self.modelPath for name in ["nllb", "m2m100"]):
source = self.transTokenizer.convert_ids_to_tokens(self.transTokenizer.encode(text))
output = self.transModel.translate_batch([source], target_prefix=[self.targetPrefix], max_batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, beam_size=self.numBeams)
target = output[0].hypotheses[0][1:]
result = self.transTokenizer.decode(self.transTokenizer.convert_tokens_to_ids(target))
elif "ALMA" in self.modelPath:
source = self.transTokenizer.convert_ids_to_tokens(self.transTokenizer.encode(self.ALMAPrefix + text + "\n" + self.translationLang.whisper.names[0] + ": "))
output = self.transModel.generate_batch([source], max_length=max_length, max_batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, beam_size=self.numBeams, sampling_temperature=0.7, sampling_topp=0.9, repetition_penalty=1.1, include_prompt_in_result=False) #, sampling_topk=40
target = output[0]
result = self.transTokenizer.decode(target.sequences_ids[0])
elif "madlad400" in self.modelPath:
source = self.transTokenizer.convert_ids_to_tokens(self.transTokenizer.encode(self.madlad400Prefix + text))
output = self.transModel.translate_batch([source], max_batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, beam_size=self.numBeams)
target = output[0].hypotheses[0]
result = self.transTokenizer.decode(self.transTokenizer.convert_tokens_to_ids(target))
elif "mt5" in self.modelPath:
output = self.transTranslator(self.mt5Prefix + text, max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams) #, num_return_sequences=2
result = output[0]['generated_text']
elif "ALMA" in self.modelPath:
if "GPTQ" in self.modelPath:
output = self.transTranslator(self.ALMAPrefix + text + "\n" + self.translationLang.whisper.names[0] + ": ", max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams, return_full_text=False)
elif "GGUF" in self.modelPath:
output = self.transTranslator(self.ALMAPrefix + text + "\n" + self.translationLang.whisper.names[0] + ": ", max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams, return_full_text=False)
else:
output = self.transTranslator(self.ALMAPrefix + text + "\n" + self.translationLang.whisper.names[0] + ": ", max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams, return_full_text=False)
result = output[0]['generated_text']
elif "madlad400" in self.modelPath:
output = self.transTranslator(self.madlad400Prefix + text, max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams) #, num_return_sequences=2
result = output[0]['generated_text']
else: #M2M100 & NLLB
output = self.transTranslator(text, max_length=max_length, batch_size=self.batchSize, no_repeat_ngram_size=self.noRepeatNgramSize, num_beams=self.numBeams)
result = output[0]['translation_text']
except Exception as e:
print(traceback.format_exc())
print("Error translation text: " + str(e))
return result
_MODELS = ["nllb-200",
"m2m100",
"mt5",
"ALMA",
"madlad400"]
def check_model_name(name):
return any(allowed_name in name for allowed_name in _MODELS)
def download_model(
modelConfig: ModelConfig,
outputDir: Optional[str] = None,
localFilesOnly: bool = False,
cacheDir: Optional[str] = None,
):
""""download_model" is referenced from the "utils.py" script
of the "faster_whisper" project, authored by guillaumekln.
Downloads a nllb-200 model from the Hugging Face Hub.
The model is downloaded from https://huggingface.co/facebook.
Args:
modelConfig: config of the model to download (facebook/nllb-distilled-600M,
facebook/nllb-distilled-1.3B, facebook/nllb-1.3B, facebook/nllb-3.3B...).
outputDir: Directory where the model should be saved. If not set, the model is saved in
the cache directory.
localFilesOnly: If True, avoid downloading the file and return the path to the local
cached file if it exists.
cacheDir: Path to the folder where cached files are stored.
Returns:
The path to the downloaded model.
Raises:
ValueError: if the model size is invalid.
"""
if not check_model_name(modelConfig.name):
raise ValueError(
"Invalid model name '%s', expected one of: %s" % (modelConfig.name, ", ".join(_MODELS))
)
repoId = modelConfig.url #"facebook/nllb-200-%s" %
allowPatterns = [
"config.json",
"generation_config.json",
"model.bin",
"pytorch_model.bin",
"pytorch_model.bin.index.json",
"pytorch_model-*.bin",
"sentencepiece.bpe.model",
"tokenizer.json",
"tokenizer_config.json",
"shared_vocabulary.txt",
"shared_vocabulary.json",
"special_tokens_map.json",
"spiece.model",
"vocab.json", #m2m100
"model.safetensors",
"model-*.safetensors",
"model.safetensors.index.json",
"quantize_config.json",
"tokenizer.model",
"vocabulary.json"
]
kwargs = {
"local_files_only": localFilesOnly,
"allow_patterns": allowPatterns,
#"tqdm_class": disabled_tqdm,
}
if modelConfig.revision is not None:
kwargs["revision"] = modelConfig.revision
if outputDir is not None:
kwargs["local_dir"] = outputDir
kwargs["local_dir_use_symlinks"] = False
if cacheDir is not None:
kwargs["cache_dir"] = cacheDir
try:
return huggingface_hub.snapshot_download(repoId, **kwargs)
except (
huggingface_hub.utils.HfHubHTTPError,
requests.exceptions.ConnectionError,
) as exception:
warnings.warn(
"An error occured while synchronizing the model %s from the Hugging Face Hub:\n%s",
repoId,
exception,
)
warnings.warn(
"Trying to load the model directly from the local cache, if it exists."
)
kwargs["local_files_only"] = True
return huggingface_hub.snapshot_download(repoId, **kwargs)
|