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transformers训练参数 #38

Closed myml closed 1 year ago

myml commented 1 year ago

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 for more details. do_eval (bool, optional) — Whether to run evaluation on the validation set or not. Will be set to True if evaluation_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 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 for more details. evaluation_strategy (str or 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/TPU core/CPU for training. per_device_eval_batch_size (int, optional, defaults to 8) — The batch size per GPU/TPU 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.

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. 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/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 evaluation_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. In case of using a finite iterable dataset the training may stop before reaching the set number of steps when all data is exhausted lr_scheduler_type (str or SchedulerType, optional, defaults to "linear") — The scheduler type to use. See the documentation of SchedulerType for all 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 log directory. Will default to output_dir/runs/CURRENT_DATETIME_HOSTNAME*. logging_strategy (str or 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 and evaluate the first global_step or not. logging_steps (int, optional, defaults to 500) — Number of update steps between two logs if logging_strategy="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.

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. save_strategy (str or 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, optional, defaults to 500) — Number of updates steps before two checkpoint saves if save_strategy="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. 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. no_cuda (bool, optional, defaults to False) — Whether to not use CUDA even when it is available or not. 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. 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 (no_cuda). 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. 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", "cuda_amp", "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 documentation. This is an experimental API and it may change. local_rank (int, optional, defaults to -1) — Rank of the process during distributed training. xpu_backend (str, optional) — The backend to use for xpu distributed training. Must be one of "mpi" or "ccl" or "gloo". 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, optional) — Number of update steps between two evaluations if evaluation_strategy="steps". Will default to the same value as logging_steps if not set. 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 or 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) — A descriptor for the run. Typically used for wandb and mlflow logging. 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.

(Note that this behavior is not implemented for TFTrainer yet.) 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 set to True, the parameters save_strategy needs to be the same as evaluation_strategy, and in the case it is “steps”, save_steps must be a round multiple of eval_steps. metric_for_best_model (str, optional) — Use in conjunction with load_best_model_atend 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. sharded_ddp (bool, str or list of ShardedDDPOption, optional, defaults to False) — Use Sharded DDP training from FairScale (in distributed training only). This is an experimental feature.

A list of options along the following:

"simple": to use first instance of sharded DDP released by fairscale (ShardedDDP) similar to ZeRO-2.
"zero_dp_2": to use the second instance of sharded DPP released by fairscale (FullyShardedDDP) in Zero-2 mode (with reshard_after_forward=False).
"zero_dp_3": to use the second instance of sharded DPP released by fairscale (FullyShardedDDP) in Zero-3 mode (with reshard_after_forward=True).
"offload": to add ZeRO-offload (only compatible with "zero_dp_2" and "zero_dp_3").

If a string is passed, it will be split on space. If a bool is passed, it will be converted to an empty list for False and ["simple"] for True. fsdp (bool, str or list of FSDPOption, optional, defaults to False) — 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.
"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 deepspeed json config file (e.g., ds_config.json) or an already loaded json file as dict.

A List of config and its options:

fsdp_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).

fsdp_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).

fsdp_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_pos" : This prefetches the next set of parameters after the current set of parameter’s gradient computation.

fsdp_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.

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. 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” 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 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_hf") — 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", "comet_ml", "mlflow", "neptune", "tensorboard","clearml" 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. dataloader_pin_memory (bool, optional, defaults to True) — Whether you want to pin memory in data loaders or not. Will default to True. 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 save_model() will also trigger a push.

If output_dir exists, it needs to be a local clone of the repository to which the Trainer will be pushed. 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 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 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](https://huggingface.co/docs/transformers/main/en/main_classes/trainer#transformers.Trainer)) and a draft of a model card when the [save_model()](https://huggingface.co/docs/transformers/main/en/main_classes/trainer#transformers.Trainer.save_model) method is called.
"every_save": push the model, its configuration, the tokenizer (if passed along to the [Trainer](https://huggingface.co/docs/transformers/main/en/main_classes/trainer#transformers.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. gradient_checkpointing (bool, optional, defaults to False) — If True, use gradient checkpointing to save memory at the expense of slower backward pass. 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. 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 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 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) — Whether to use Apple Silicon chip based mps device. torch_compile (bool, optional, defaults to False) — Whether or not to compile the model using PyTorch 2.0 torch.compile.

This will use the best defaults for the torch.compile API. 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.

TrainingArguments is the subset of the arguments we use in our example scripts which relate to the training loop itself.

myml commented 1 year ago

临时存放,现删除