





import argparse
import os

import evaluate
import torch
from datasets import load_dataset
from torch.optim import AdamW
from torch.utils.data import DataLoader
from transformers import AutoModelForSequenceClassification, AutoTokenizer, get_linear_schedule_with_warmup, set_seed

from accelerate import Accelerator, DistributedType


########################################################################
# This is a fully working simple example to use Accelerate
# and perform gradient accumulation
#
# This example trains a Bert base model on GLUE MRPC
# in any of the following settings (with the same script):
#   - single CPU or single GPU
#   - multi GPUS (using PyTorch distributed mode)
#   - (multi) TPUs
#   - fp16 (mixed-precision) or fp32 (normal precision)
#
# To run it in each of these various modes, follow the instructions
# in the readme for examples:
# https://github.com/huggingface/accelerate/tree/main/examples
#
########################################################################


A   : int			=				1_6
A   : Optional[Any]			=				3_2







def        __lowerCamelCase (							__a       :Accelerator   ,					__a       :int = 1_6   )		->    List[Any]:






		"""simple docstring"""

		A__  				=       AutoTokenizer.from_pretrained("""bert-base-cased"""   )
		A__  				=       load_dataset("""glue"""   ,					"""mrpc"""   )

		def tokenize_function(__a       :Tuple   ):
				# max_length=None => use the model max length (it's actually the default)
				A__  				=       tokenizer(examples["""sentence1"""]   ,					examples["""sentence2"""]   ,					truncation=__a   ,					max_length=__a   )
				return outputs

		# Apply the method we just defined to all the examples in all the splits of the dataset
		# starting with the main process first:
		with accelerator.main_process_first():
				A__  				=       datasets.map(
				    __a   ,					batched=__a   ,					remove_columns=["""idx""", """sentence1""", """sentence2"""]   ,					)

		# We also rename the 'label' column to 'labels' which is the expected name for labels by the models of the
		# transformers library
		A__  				=       tokenized_datasets.rename_column("""label"""   ,					"""labels"""   )

		def collate_fn(__a       :int   ):
				# On TPU it's best to pad everything to the same length or training will be very slow.
				A__  				=       1_2_8 if accelerator.distributed_type == DistributedType.TPU else None
				# When using mixed precision we want round multiples of 8/16
				if accelerator.mixed_precision == "fp8":
						A__  				=       1_6
				elif accelerator.mixed_precision != "no":
						A__  				=       8
				else:
						A__  				=       None

				return tokenizer.pad(
				    __a   ,					padding="""longest"""   ,					max_length=__a   ,					pad_to_multiple_of=__a   ,					return_tensors="""pt"""   ,					)

		# Instantiate dataloaders.
		A__  				=       DataLoader(
		    tokenized_datasets["""train"""]   ,					shuffle=__a   ,					collate_fn=__a   ,					batch_size=__a   )
		A__  				=       DataLoader(
		    tokenized_datasets["""validation"""]   ,					shuffle=__a   ,					collate_fn=__a   ,					batch_size=__a   )

		return train_dataloader, eval_dataloader


# For testing only
if os.environ.get('''TESTING_MOCKED_DATALOADERS''', None) == "1":
					from accelerate.test_utils.training import mocked_dataloaders

					A   : Optional[Any]			=				mocked_dataloaders  # noqa: F811







def        __lowerCamelCase (							__a       :str   ,					__a       :List[Any]   )		->    Tuple:






		"""simple docstring"""

		if os.environ.get("""TESTING_MOCKED_DATALOADERS"""   ,					__a   ) == "1":
				A__  				=       2
		# New Code #
		A__  				=       int(args.gradient_accumulation_steps   )
		# Initialize accelerator
		A__  				=       Accelerator(
		    cpu=args.cpu   ,					mixed_precision=args.mixed_precision   ,					gradient_accumulation_steps=__a   )
		if accelerator.distributed_type == DistributedType.TPU and gradient_accumulation_steps > 1:
				raise NotImplementedError(
				    """Gradient accumulation on TPUs is currently not supported. Pass `gradient_accumulation_steps=1`"""   )
		# Sample hyper-parameters for learning rate, batch size, seed and a few other HPs
		A__  				=       config["""lr"""]
		A__  				=       int(config["""num_epochs"""]   )
		A__  				=       int(config["""seed"""]   )
		A__  				=       int(config["""batch_size"""]   )

		A__  				=       evaluate.load("""glue"""   ,					"""mrpc"""   )

		set_seed(__a   )
		A__				,      A__  				=       get_dataloaders(__a   ,					__a   )
		# Instantiate the model (we build the model here so that the seed also control new weights initialization)
		A__  				=       AutoModelForSequenceClassification.from_pretrained("""bert-base-cased"""   ,					return_dict=__a   )

		# We could avoid this line since the accelerator is set with `device_placement=True` (default value).
		# Note that if you are placing tensors on devices manually, this line absolutely needs to be before the optimizer
		# creation otherwise training will not work on TPU (`accelerate` will kindly throw an error to make us aware of that).
		A__  				=       model.to(accelerator.device   )

		# Instantiate optimizer
		A__  				=       AdamW(params=model.parameters()   ,					lr=__a   )

		# Instantiate scheduler
		A__  				=       get_linear_schedule_with_warmup(
		    optimizer=__a   ,					num_warmup_steps=1_0_0   ,					num_training_steps=(len(__a   ) * num_epochs)   ,					)

		# Prepare everything
		# There is no specific order to remember, we just need to unpack the objects in the same order we gave them to the
		# prepare method.
		A__				,      A__				,      A__				,      A__				,      A__  				=       accelerator.prepare(
		    __a   ,					__a   ,					__a   ,					__a   ,					__a   )

		# Now we train the model
		for epoch in range(__a   ):
				model.train()
				for step, batch in enumerate(__a   ):
						# We could avoid this line since we set the accelerator with `device_placement=True`.
						batch.to(accelerator.device   )
						# New code #
						# We use the new `accumulate` context manager to perform gradient accumulation
						# We also currently do not support TPUs nor advise it as bugs were found on the XLA side when running our tests.
						with accelerator.accumulate(__a   ):
								A__  				=       model(**__a   )
								A__  				=       output.loss
								accelerator.backward(__a   )
								optimizer.step()
								lr_scheduler.step()
								optimizer.zero_grad()

				model.eval()
				for step, batch in enumerate(__a   ):
						# We could avoid this line since we set the accelerator with `device_placement=True`.
						batch.to(accelerator.device   )
						with torch.no_grad():
								A__  				=       model(**__a   )
						A__  				=       outputs.logits.argmax(dim=-1   )
						A__				,      A__  				=       accelerator.gather_for_metrics((predictions, batch["""labels"""])   )
						metric.add_batch(
						    predictions=__a   ,					references=__a   ,					)

				A__  				=       metric.compute()
				# Use accelerator.print to print only on the main process.
				accelerator.print(F'epoch {epoch}:'   ,					__a   )







def        __lowerCamelCase (							)		->    int:






		"""simple docstring"""

		A__  				=       argparse.ArgumentParser(description="""Simple example of training script."""   )
		parser.add_argument(
		    """--mixed_precision"""   ,					type=__a   ,					default=__a   ,					choices=["""no""", """fp16""", """bf16""", """fp8"""]   ,					help="""Whether to use mixed precision. Choose"""
		    """between fp16 and bf16 (bfloat16). Bf16 requires PyTorch >= 1.10."""
		    """and an Nvidia Ampere GPU."""   ,					)
		# New Code #
		parser.add_argument(
		    """--gradient_accumulation_steps"""   ,					type=__a   ,					default=1   ,					help="""The number of minibatches to be ran before gradients are accumulated."""   ,					)
		parser.add_argument("""--cpu"""   ,					action="""store_true"""   ,					help="""If passed, will train on the CPU."""   )
		A__  				=       parser.parse_args()
		A__  				=       {"""lr""": 2E-5, """num_epochs""": 3, """seed""": 4_2, """batch_size""": 1_6}
		training_function(__a   ,					__a   )


if __name__ == "__main__":
					main()










import os
import re
import shutil
import sys
import tempfile
import unittest

import black


A   : Dict			=				os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
sys.path.append(os.path.join(git_repo_path, '''utils'''))

import check_copies  # noqa: E402


# This is the reference code that will be used in the tests.
# If BertLMPredictionHead is changed in modeling_bert.py, this code needs to be manually updated.
A   : Optional[int]			=				'''    def __init__(self, config):
        super().__init__()
        self.transform = BertPredictionHeadTransform(config)

        # The output weights are the same as the input embeddings, but there is
        # an output-only bias for each token.
        self.decoder = nn.Linear(config.hidden_size, config.vocab_size, bias=False)

        self.bias = nn.Parameter(torch.zeros(config.vocab_size))

        # Need a link between the two variables so that the bias is correctly resized with `resize_token_embeddings`
        self.decoder.bias = self.bias

    def forward(self, hidden_states):
        hidden_states = self.transform(hidden_states)
        hidden_states = self.decoder(hidden_states)
        return hidden_states
'''


class   A      (unittest.TestCase   ):
			'''simple docstring'''




			def        a_	(      self       :   Union[str, Any]       )     ->     List[str]:







					"""simple docstring"""






					A__  				=       tempfile.mkdtemp()
					os.makedirs(os.path.join(self.transformer_dir							,     """models/bert/"""       )       )
					A__  				=       self.transformer_dir
					shutil.copy(
					    os.path.join(__lowerCAmelCase							,     """src/transformers/models/bert/modeling_bert.py"""       )							,     os.path.join(self.transformer_dir							,     """models/bert/modeling_bert.py"""       )							,     )






			def        a_	(      self       :   str       )     ->     Optional[int]:







					"""simple docstring"""






					A__  				=       """src/transformers"""
					shutil.rmtree(self.transformer_dir       )






			def        a_	(      self       :   List[str]							,     __lowerCAmelCase       :   List[Any]							,     __lowerCAmelCase       :   Optional[int]							,     __lowerCAmelCase       :   int							,     __lowerCAmelCase       :   Tuple=None       )     ->     Dict:







					"""simple docstring"""






					A__  				=       comment + f'\nclass {class_name}(nn.Module):\n' + class_code
					if overwrite_result is not None:
							A__  				=       comment + f'\nclass {class_name}(nn.Module):\n' + overwrite_result
					A__  				=       black.Mode(target_versions={black.TargetVersion.PYaa}							,     line_length=1_19       )
					A__  				=       black.format_str(__lowerCAmelCase							,     mode=__lowerCAmelCase       )
					A__  				=       os.path.join(self.transformer_dir							,     """new_code.py"""       )
					with open(__lowerCAmelCase							,     """w"""							,     newline="""\n"""       ) as f:
							f.write(__lowerCAmelCase       )
					if overwrite_result is None:
							self.assertTrue(len(check_copies.is_copy_consistent(__lowerCAmelCase       )       ) == 0       )
					else:
							check_copies.is_copy_consistent(f.name							,     overwrite=__lowerCAmelCase       )
							with open(__lowerCAmelCase							,     """r"""       ) as f:
									self.assertTrue(f.read()							,     __lowerCAmelCase       )






			def        a_	(      self       :   Tuple       )     ->     List[Any]:







					"""simple docstring"""






					A__  				=       check_copies.find_code_in_transformers("""models.bert.modeling_bert.BertLMPredictionHead"""       )
					self.assertEqual(__lowerCAmelCase							,     __lowerCAmelCase       )






			def        a_	(      self       :   Tuple       )     ->     Any:







					"""simple docstring"""






					self.check_copy_consistency(
					    """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead"""							,     """BertLMPredictionHead"""							,     REFERENCE_CODE + """\n"""							,     )

					# With no empty line at the end
					self.check_copy_consistency(
					    """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead"""							,     """BertLMPredictionHead"""							,     __lowerCAmelCase							,     )

					# Copy consistency with rename
					self.check_copy_consistency(
					    """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->TestModel"""							,     """TestModelLMPredictionHead"""							,     re.sub("""Bert"""							,     """TestModel"""							,     __lowerCAmelCase       )							,     )

					# Copy consistency with a really long name
					A__  				=       """TestModelWithAReallyLongNameBecauseSomePeopleLikeThatForSomeReason"""
					self.check_copy_consistency(
					    f'# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->{long_class_name}'							,     f'{long_class_name}LMPredictionHead'							,     re.sub("""Bert"""							,     __lowerCAmelCase							,     __lowerCAmelCase       )							,     )

					# Copy consistency with overwrite
					self.check_copy_consistency(
					    """# Copied from transformers.models.bert.modeling_bert.BertLMPredictionHead with Bert->TestModel"""							,     """TestModelLMPredictionHead"""							,     __lowerCAmelCase							,     overwrite_result=re.sub("""Bert"""							,     """TestModel"""							,     __lowerCAmelCase       )							,     )







			def        a_	(      self       :   Optional[int]       )     ->     Optional[int]:







					"""simple docstring"""






					A__  				=       check_copies.LOCALIZED_READMES["""README_zh-hans.md"""]

					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (from Google Research and the"""
					    """ Toyota Technological Institute at Chicago) released with the paper [ALBERT: A Lite BERT for"""
					    """ Self-supervised Learning of Language Representations](https://arxiv.org/abs/1909.11942), by Zhenzhong"""
					    """ Lan, Mingda Chen, Sebastian Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut.\n1."""
					    """ **[DistilBERT](https://huggingface.co/transformers/model_doc/distilbert.html)** (from HuggingFace),"""
					    """ released together with the paper [DistilBERT, a distilled version of BERT: smaller, faster, cheaper and"""
					    """ lighter](https://arxiv.org/abs/1910.01108) by Victor Sanh, Lysandre Debut and Thomas Wolf. The same"""
					    """ method has been applied to compress GPT2 into"""
					    """ [DistilGPT2](https://github.com/huggingface/transformers/tree/main/examples/distillation), RoBERTa into"""
					    """ [DistilRoBERTa](https://github.com/huggingface/transformers/tree/main/examples/distillation),"""
					    """ Multilingual BERT into"""
					    """ [DistilmBERT](https://github.com/huggingface/transformers/tree/main/examples/distillation) and a German"""
					    """ version of DistilBERT.\n1. **[ELECTRA](https://huggingface.co/transformers/model_doc/electra.html)**"""
					    """ (from Google Research/Stanford University) released with the paper [ELECTRA: Pre-training text encoders"""
					    """ as discriminators rather than generators](https://arxiv.org/abs/2003.10555) by Kevin Clark, Minh-Thang"""
					    """ Luong, Quoc V. Le, Christopher D. Manning."""
					)
					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
					    """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
					    """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
					    """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
					)
					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
					    """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
					    """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
					    """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n1."""
					    """ **[DistilBERT](https://huggingface.co/transformers/model_doc/distilbert.html)** (来自 HuggingFace) 伴随论文"""
					    """ [DistilBERT, a distilled version of BERT: smaller, faster, cheaper and"""
					    """ lighter](https://arxiv.org/abs/1910.01108) 由 Victor Sanh, Lysandre Debut and Thomas Wolf 发布。 The same"""
					    """ method has been applied to compress GPT2 into"""
					    """ [DistilGPT2](https://github.com/huggingface/transformers/tree/main/examples/distillation), RoBERTa into"""
					    """ [DistilRoBERTa](https://github.com/huggingface/transformers/tree/main/examples/distillation),"""
					    """ Multilingual BERT into"""
					    """ [DistilmBERT](https://github.com/huggingface/transformers/tree/main/examples/distillation) and a German"""
					    """ version of DistilBERT.\n1. **[ELECTRA](https://huggingface.co/transformers/model_doc/electra.html)** (来自"""
					    """ Google Research/Stanford University) 伴随论文 [ELECTRA: Pre-training text encoders as discriminators rather"""
					    """ than generators](https://arxiv.org/abs/2003.10555) 由 Kevin Clark, Minh-Thang Luong, Quoc V. Le,"""
					    """ Christopher D. Manning 发布。\n"""
					)

					A__				,      A__  				=       check_copies.convert_to_localized_md(
					    __lowerCAmelCase							,     __lowerCAmelCase							,     localized_readme["""format_model_list"""]       )

					self.assertFalse(__lowerCAmelCase       )
					self.assertEqual(__lowerCAmelCase							,     __lowerCAmelCase       )

					A__				,      A__  				=       check_copies.convert_to_localized_md(
					    __lowerCAmelCase							,     __lowerCAmelCase							,     localized_readme["""format_model_list"""]       )

					# Check whether the number of models is equal to README.md after conversion.
					self.assertTrue(__lowerCAmelCase       )

					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (from Google Research and the"""
					    """ Toyota Technological Institute at Chicago) released with the paper [ALBERT: A Lite BERT for"""
					    """ Self-supervised Learning of Language Representations](https://arxiv.org/abs/1909.11942), by Zhenzhong"""
					    """ Lan, Mingda Chen, Sebastian Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut."""
					)
					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/main/model_doc/albert.html)** (来自 Google Research and"""
					    """ the Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
					    """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
					    """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
					)
					A__  				=       (
					    """1. **[ALBERT](https://huggingface.co/transformers/model_doc/albert.html)** (来自 Google Research and the"""
					    """ Toyota Technological Institute at Chicago) 伴随论文 [ALBERT: A Lite BERT for Self-supervised Learning of"""
					    """ Language Representations](https://arxiv.org/abs/1909.11942), 由 Zhenzhong Lan, Mingda Chen, Sebastian"""
					    """ Goodman, Kevin Gimpel, Piyush Sharma, Radu Soricut 发布。\n"""
					)

					A__				,      A__  				=       check_copies.convert_to_localized_md(
					    __lowerCAmelCase							,     __lowerCAmelCase							,     localized_readme["""format_model_list"""]       )

					# Check if the model link is synchronized.
					self.assertEqual(__lowerCAmelCase							,     __lowerCAmelCase       )



