Trainer

ORTTrainer

class optimum.onnxruntime.ORTTrainer

( model: typing.Union[transformers.modeling_utils.PreTrainedModel, torch.nn.modules.module.Module] = None tokenizer: typing.Optional[transformers.tokenization_utils_base.PreTrainedTokenizerBase] = None feature: str = 'feature-extraction' args: ORTTrainingArguments = None data_collator: typing.Optional[DataCollator] = None train_dataset: typing.Optional[torch.utils.data.dataset.Dataset] = None eval_dataset: typing.Union[torch.utils.data.dataset.Dataset, typing.Dict[str, torch.utils.data.dataset.Dataset], NoneType] = None model_init: typing.Union[typing.Callable[[], transformers.modeling_utils.PreTrainedModel], NoneType] = None compute_metrics: typing.Union[typing.Callable[[transformers.trainer_utils.EvalPrediction], typing.Dict], NoneType] = None callbacks: typing.Optional[typing.List[transformers.trainer_callback.TrainerCallback]] = None optimizers: typing.Tuple[torch.optim.optimizer.Optimizer, torch.optim.lr_scheduler.LambdaLR] = (None, None) preprocess_logits_for_metrics: typing.Union[typing.Callable[[torch.Tensor, torch.Tensor], torch.Tensor], NoneType] = None onnx_model_path: typing.Union[str, os.PathLike] = None )

Parameters

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.

ORTTrainer is optimized to work with the PreTrainedModel provided by the transformers library. You can still use your own models defined as torch.nn.Module for training with ONNX Runtime backend and inference with PyTorch backend as long as they work the same way as the 🤗 Transformers models.
args (ORTTrainingArguments, optional) — The arguments to tweak for training. Will default to a basic instance of ORTTrainingArguments 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 (torch.utils.data.Dataset or torch.utils.data.IterableDataset, optional) — The dataset to use for training. If it is a 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 ORTTrainer 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]), optional) — The dataset to use for evaluation. If it is a 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 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 ORTTrainer.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. If you want to remove one of the default callbacks used, use the ORTTrainer.remove_callback method.
optimizers (Tuple[torch.optim.Optimizer, torch.optim.lr_scheduler.LambdaLR], optional) — 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.

ORTTrainer is a simple but feature-complete training and eval loop for ONNX Runtime, optimized for 🤗 Transformers.

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 first wrapped in ORTModule and then 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 ORTTrainingArguments.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)

compute_loss_ort

< source >

( model inputs return_outputs = False )

How the loss is computed by ORTTrainer. By default, all models return the loss in the first element. Subclass and override for custom behavior.

create_optimizer

< source >

( )

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 ORTTrainer’s init through optimizers, or subclass and override this method in a subclass.

evaluate

< source >

( eval_dataset: typing.Optional[torch.utils.data.dataset.Dataset] = None ignore_keys: typing.Optional[typing.List[str]] = None metric_key_prefix: str = 'eval' inference_with_ort: bool = False )

Parameters

eval_dataset (Dataset, optional) — Pass a dataset if you wish to override self.eval_dataset. If it is a 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)

Run evaluation with ONNX Runtime or PyTorch backend and returns metrics.

evaluation_loop_ort

< source >

( dataloader: DataLoader description: str prediction_loss_only: typing.Optional[bool] = None ignore_keys: typing.Optional[typing.List[str]] = None metric_key_prefix: str = 'eval' )

Prediction/evaluation loop, shared by ORTTrainer.evaluate() and ORTTrainer.predict().

Works both with or without labels.

get_ort_optimizer_cls_and_kwargs

< source >

( args: ORTTrainingArguments )

Parameters

args (ORTTrainingArguments) — The training arguments for the training session.

Returns the optimizer class and optimizer parameters implemented in ONNX Runtime based on ORTTrainingArguments.

prediction_loop_ort

< source >

( dataloader: DataLoader description: str prediction_loss_only: typing.Optional[bool] = None ignore_keys: typing.Optional[typing.List[str]] = None metric_key_prefix: str = 'eval' )

Prediction/evaluation loop, shared by ORTTrainer.evaluate() and ORTTrainer.predict().

Works both with or without labels.

prediction_step_ort

< source >

( model: ORTModel inputs: typing.Dict[str, typing.Union[torch.Tensor, typing.Any]] prediction_loss_only: bool ignore_keys: typing.Optional[typing.List[str]] = None ) → Tuple[Optional[torch.Tensor], Optional[torch.Tensor], Optional[torch.Tensor]]

Parameters

model (ORTModel) — 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 (Lst[str], optional) — A list of keys in the output of your model (if it is a dictionary) that should be ignored when gathering predictions.

Returns

Tuple[Optional[torch.Tensor], Optional[torch.Tensor], Optional[torch.Tensor]]

A tuple with the loss, logits and labels (each being optional).

Perform an evaluation step on model using inputs.

train

< source >

( resume_from_checkpoint: typing.Union[bool, str, NoneType] = None trial: typing.Union[ForwardRef('optuna.Trial'), typing.Dict[str, typing.Any]] = None ignore_keys_for_eval: typing.Optional[typing.List[str]] = None **kwargs )

Parameters

resume_from_checkpoint (str or bool, optional) — If a str, local path to a saved checkpoint as saved by a previous instance of ORTTrainer. If a bool and equals True, load the last checkpoint in args.output_dir as saved by a previous instance of ORTTrainer. 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 — Additional keyword arguments used to hide deprecated arguments

Main entry point for training with ONNX Runtime accelerator.

ORTSeq2SeqTrainer

class optimum.onnxruntime.ORTSeq2SeqTrainer

< source >

evaluate

< source >

( eval_dataset: typing.Optional[torch.utils.data.dataset.Dataset] = None ignore_keys: typing.Optional[typing.List[str]] = None metric_key_prefix: str = 'eval' inference_with_ort: bool = False **gen_kwargs )

Parameters

eval_dataset (Dataset, optional) — Pass a dataset if you wish to override self.eval_dataset. If it is a 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)

Run evaluation with ONNX Runtime or PyTorch backend and returns metrics.

predict

< source >

( test_dataset: Dataset ignore_keys: typing.Optional[typing.List[str]] = None metric_key_prefix: str = 'eval' inference_with_ort: bool = False **gen_kwargs )

Parameters

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)

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().

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.

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).

ORTTrainingArguments

class optimum.onnxruntime.ORTTrainingArguments

< source >

( output_dir: str overwrite_output_dir: bool = False do_train: bool = False do_eval: bool = False do_predict: bool = False evaluation_strategy: typing.Union[transformers.trainer_utils.IntervalStrategy, str] = 'no' prediction_loss_only: bool = False per_device_train_batch_size: int = 8 per_device_eval_batch_size: int = 8 per_gpu_train_batch_size: typing.Optional[int] = None per_gpu_eval_batch_size: typing.Optional[int] = None gradient_accumulation_steps: int = 1 eval_accumulation_steps: typing.Optional[int] = None eval_delay: typing.Optional[float] = 0 learning_rate: float = 5e-05 weight_decay: float = 0.0 adam_beta1: float = 0.9 adam_beta2: float = 0.999 adam_epsilon: float = 1e-08 max_grad_norm: float = 1.0 num_train_epochs: float = 3.0 max_steps: int = -1 lr_scheduler_type: typing.Union[transformers.trainer_utils.SchedulerType, str] = 'linear' warmup_ratio: float = 0.0 warmup_steps: int = 0 log_level: typing.Optional[str] = 'passive' log_level_replica: typing.Optional[str] = 'warning' log_on_each_node: bool = True logging_dir: typing.Optional[str] = None logging_strategy: typing.Union[transformers.trainer_utils.IntervalStrategy, str] = 'steps' logging_first_step: bool = False logging_steps: float = 500 logging_nan_inf_filter: bool = True save_strategy: typing.Union[transformers.trainer_utils.IntervalStrategy, str] = 'steps' save_steps: float = 500 save_total_limit: typing.Optional[int] = None save_safetensors: typing.Optional[bool] = False save_on_each_node: bool = False no_cuda: bool = False use_mps_device: bool = False seed: int = 42 data_seed: typing.Optional[int] = None jit_mode_eval: bool = False use_ipex: bool = False bf16: bool = False fp16: bool = False fp16_opt_level: str = 'O1' half_precision_backend: str = 'auto' bf16_full_eval: bool = False fp16_full_eval: bool = False tf32: typing.Optional[bool] = None local_rank: int = -1 ddp_backend: typing.Optional[str] = None tpu_num_cores: typing.Optional[int] = None tpu_metrics_debug: bool = False debug: str = '' dataloader_drop_last: bool = False eval_steps: typing.Optional[float] = None dataloader_num_workers: int = 0 past_index: int = -1 run_name: typing.Optional[str] = None disable_tqdm: typing.Optional[bool] = None remove_unused_columns: typing.Optional[bool] = True label_names: typing.Optional[typing.List[str]] = None load_best_model_at_end: typing.Optional[bool] = False metric_for_best_model: typing.Optional[str] = None greater_is_better: typing.Optional[bool] = None ignore_data_skip: bool = False sharded_ddp: str = '' fsdp: str = '' fsdp_min_num_params: int = 0 fsdp_config: typing.Optional[str] = None fsdp_transformer_layer_cls_to_wrap: typing.Optional[str] = None deepspeed: typing.Optional[str] = None label_smoothing_factor: float = 0.0 optim: typing.Optional[str] = 'adamw_hf' optim_args: typing.Optional[str] = None adafactor: bool = False group_by_length: bool = False length_column_name: typing.Optional[str] = 'length' report_to: typing.Optional[typing.List[str]] = None ddp_find_unused_parameters: typing.Optional[bool] = None ddp_bucket_cap_mb: typing.Optional[int] = None dataloader_pin_memory: bool = True skip_memory_metrics: bool = True use_legacy_prediction_loop: bool = False push_to_hub: bool = False resume_from_checkpoint: typing.Optional[str] = None hub_model_id: typing.Optional[str] = None hub_strategy: typing.Union[transformers.trainer_utils.HubStrategy, str] = 'every_save' hub_token: typing.Optional[str] = None hub_private_repo: bool = False gradient_checkpointing: bool = False include_inputs_for_metrics: bool = False fp16_backend: str = 'auto' push_to_hub_model_id: typing.Optional[str] = None push_to_hub_organization: typing.Optional[str] = None push_to_hub_token: typing.Optional[str] = None mp_parameters: str = '' auto_find_batch_size: bool = False full_determinism: bool = False torchdynamo: typing.Optional[str] = None ray_scope: typing.Optional[str] = 'last' ddp_timeout: typing.Optional[int] = 1800 torch_compile: bool = False torch_compile_backend: typing.Optional[str] = None torch_compile_mode: typing.Optional[str] = None xpu_backend: typing.Optional[str] = None use_module_with_loss: typing.Optional[bool] = False )

Parameters

optim (str or training_args.ORTOptimizerNames or transformers.training_args.OptimizerNames, optional, defaults to "adamw_hf") — The optimizer to use, including optimizers in Transformers: adamw_hf, adamw_torch, adamw_apex_fused, or adafactor. And optimizers implemented by ONNX Runtime: adamw_ort_fused.

ORTSeq2SeqTrainingArguments

class optimum.onnxruntime.ORTSeq2SeqTrainingArguments

< source >

Parameters

optim (str or training_args.ORTOptimizerNames or transformers.training_args.OptimizerNames, optional, defaults to "adamw_hf") — The optimizer to use, including optimizers in Transformers: adamw_hf, adamw_torch, adamw_apex_fused, or adafactor. And optimizers implemented by ONNX Runtime: adamw_ort_fused.

Optimum

Trainer

ORTTrainer

class optimum.onnxruntime.ORTTrainer

compute_loss_ort

create_optimizer

evaluate

evaluation_loop_ort

get_ort_optimizer_cls_and_kwargs

prediction_loop_ort

prediction_step_ort

train

ORTSeq2SeqTrainer

class optimum.onnxruntime.ORTSeq2SeqTrainer

evaluate

predict

ORTTrainingArguments

class optimum.onnxruntime.ORTTrainingArguments

ORTSeq2SeqTrainingArguments

class optimum.onnxruntime.ORTSeq2SeqTrainingArguments