






import argparse

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
#
# 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
#
########################################################################


__UpperCAmelCase     							=						16
__UpperCAmelCase     							=						32




def 					lowercase__				(					__snake_case   :							Accelerator					,	__snake_case   :							int = 16  ):


					'''simple docstring'''


					UpperCAmelCase_   :				str						=						AutoTokenizer.from_pretrained('bert-base-cased'  )
					UpperCAmelCase_   :				Dict						=						load_dataset('glue'					,	'mrpc'  )

					def tokenize_function(__snake_case   :							Optional[int]  ):
										# max_length=None => use the model max length (it's actually the default)
										UpperCAmelCase_   :				List[Any]						=						tokenizer(examples['sentence1']					,	examples['sentence2']					,	truncation=__snake_case					,	max_length=__snake_case  )
										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():
										UpperCAmelCase_   :				Any						=						datasets.map(
										    __snake_case					,	batched=__snake_case					,	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
					UpperCAmelCase_   :				Union[str, Any]						=						tokenized_datasets.rename_column('label'					,	'labels'  )

					def collate_fn(__snake_case   :							Any  ):
										# On TPU it's best to pad everything to the same length or training will be very slow.
										UpperCAmelCase_   :				List[str]						=						128 if accelerator.distributed_type == DistributedType.TPU else None
										# When using mixed precision we want round multiples of 8/16
										if accelerator.mixed_precision == "fp8":
															UpperCAmelCase_   :				Dict						=						16
										elif accelerator.mixed_precision != "no":
															UpperCAmelCase_   :				str						=						8
										else:
															UpperCAmelCase_   :				List[Any]						=						None

										return tokenizer.pad(
										    __snake_case					,	padding='longest'					,	max_length=__snake_case					,	pad_to_multiple_of=__snake_case					,	return_tensors='pt'					,	)

					# Instantiate dataloaders.
					UpperCAmelCase_   :				List[Any]						=						DataLoader(
					    tokenized_datasets['train']					,	shuffle=__snake_case					,	collate_fn=__snake_case					,	batch_size=__snake_case					,	drop_last=__snake_case  )
					UpperCAmelCase_   :				str						=						DataLoader(
					    tokenized_datasets['validation']					,	shuffle=__snake_case					,	collate_fn=__snake_case					,	batch_size=__snake_case					,	drop_last=(accelerator.mixed_precision == 'fp8')					,	)

					return train_dataloader, eval_dataloader




def 					lowercase__				(					__snake_case   :							Optional[int]					,	__snake_case   :							int  ):


					'''simple docstring'''


					UpperCAmelCase_   :				str						=						Accelerator(cpu=args.cpu					,	mixed_precision=args.mixed_precision  )
					# Sample hyper-parameters for learning rate, batch size, seed and a few other HPs
					UpperCAmelCase_   :				int						=						config['lr']
					UpperCAmelCase_   :				List[Any]						=						int(config['num_epochs']  )
					UpperCAmelCase_   :				Any						=						int(config['seed']  )
					UpperCAmelCase_   :				Optional[Any]						=						int(config['batch_size']  )

					UpperCAmelCase_   :				List[Any]						=						evaluate.load('glue'					,	'mrpc'  )

					# If the batch size is too big we use gradient accumulation
					UpperCAmelCase_   :				List[Any]						=						1
					if batch_size > MAX_GPU_BATCH_SIZE and accelerator.distributed_type != DistributedType.TPU:
										UpperCAmelCase_   :				Any						=						batch_size // MAX_GPU_BATCH_SIZE
										UpperCAmelCase_   :				List[str]						=						MAX_GPU_BATCH_SIZE

					set_seed(__snake_case  )
					UpperCAmelCase_	,  UpperCAmelCase_   :				List[Any]						=						get_dataloaders(__snake_case					,	__snake_case  )
					# Instantiate the model (we build the model here so that the seed also control new weights initialization)
					UpperCAmelCase_   :				Optional[int]						=						AutoModelForSequenceClassification.from_pretrained('bert-base-cased'					,	return_dict=__snake_case  )

					# 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).
					UpperCAmelCase_   :				List[Any]						=						model.to(accelerator.device  )
					# Instantiate optimizer
					UpperCAmelCase_   :				Optional[Any]						=						AdamW(params=model.parameters()					,	lr=__snake_case  )

					# Instantiate scheduler
					UpperCAmelCase_   :				Union[str, Any]						=						get_linear_schedule_with_warmup(
					    optimizer=__snake_case					,	num_warmup_steps=100					,	num_training_steps=(len(__snake_case  ) * num_epochs) // gradient_accumulation_steps					,	)

					# 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.

					UpperCAmelCase_	,  UpperCAmelCase_	,  UpperCAmelCase_	,  UpperCAmelCase_	,  UpperCAmelCase_   :				str						=						accelerator.prepare(
					    __snake_case					,	__snake_case					,	__snake_case					,	__snake_case					,	__snake_case  )

					# Now we train the model
					for epoch in range(__snake_case  ):
										model.train()
										for step, batch in enumerate(__snake_case  ):
															# We could avoid this line since we set the accelerator with `device_placement=True`.
															batch.to(accelerator.device  )
															UpperCAmelCase_   :				Tuple						=						model(**__snake_case  )
															UpperCAmelCase_   :				Tuple						=						outputs.loss
															UpperCAmelCase_   :				Optional[Any]						=						loss / gradient_accumulation_steps
															accelerator.backward(__snake_case  )
															if step % gradient_accumulation_steps == 0:
																				optimizer.step()
																				lr_scheduler.step()
																				optimizer.zero_grad()

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

										UpperCAmelCase_   :				str						=						metric.compute()
										# Use accelerator.print to print only on the main process.
										accelerator.print(F"epoch {epoch}:"					,	__snake_case  )




def 					lowercase__				(					):


					'''simple docstring'''


					UpperCAmelCase_   :				Optional[int]						=						argparse.ArgumentParser(description='Simple example of training script.'  )
					parser.add_argument(
					    '--mixed_precision'					,	type=__snake_case					,	default=__snake_case					,	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.'					,	)
					parser.add_argument('--cpu'					,	action='store_true'					,	help='If passed, will train on the CPU.'  )
					UpperCAmelCase_   :				List[Any]						=						parser.parse_args()
					UpperCAmelCase_   :				str						=						{'lr': 2E-5, 'num_epochs': 3, 'seed': 42, 'batch_size': 16}
					training_function(__snake_case					,	__snake_case  )


if __name__ == "__main__":
		main()














import os
from shutil import copyfile
from typing import Any, Dict, List, Optional, Tuple

import sentencepiece as spm

from ...tokenization_utils import AddedToken, BatchEncoding, PreTrainedTokenizer
from ...utils import logging


__UpperCAmelCase     							=						logging.get_logger(__name__)

__UpperCAmelCase     							=						'▁'

__UpperCAmelCase     							=						{'vocab_file': 'sentencepiece.bpe.model'}

__UpperCAmelCase     							=						{
    'vocab_file': {
        'facebook/mbart-large-en-ro': (
            'https://huggingface.co/facebook/mbart-large-en-ro/resolve/main/sentencepiece.bpe.model'
        ),
        'facebook/mbart-large-cc25': (
            'https://huggingface.co/facebook/mbart-large-cc25/resolve/main/sentencepiece.bpe.model'
        ),
    }
}

__UpperCAmelCase     							=						{
    'facebook/mbart-large-en-ro': 1024,
    'facebook/mbart-large-cc25': 1024,
}

# fmt: off
__UpperCAmelCase     							=						['ar_AR', 'cs_CZ', 'de_DE', 'en_XX', 'es_XX', 'et_EE', 'fi_FI', 'fr_XX', 'gu_IN', 'hi_IN', 'it_IT', 'ja_XX', 'kk_KZ', 'ko_KR', 'lt_LT', 'lv_LV', 'my_MM', 'ne_NP', 'nl_XX', 'ro_RO', 'ru_RU', 'si_LK', 'tr_TR', 'vi_VN', 'zh_CN']



class   lowerCamelCase				(_snake_case      ):







		'''simple docstring'''



		_snake_case   :   List[Any]							=  VOCAB_FILES_NAMES
		_snake_case   :   Union[str, Any]							=  PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
		_snake_case   :   Tuple							=  PRETRAINED_VOCAB_FILES_MAP
		_snake_case   :   Any							=  ['''input_ids''', '''attention_mask''']

		_snake_case   :   List[int]							=  []
		_snake_case   :   List[int]							=  []



		def __init__(							self    ,		_UpperCamelCase    ,		_UpperCamelCase="<s>"    ,		_UpperCamelCase="</s>"    ,		_UpperCamelCase="</s>"    ,		_UpperCamelCase="<s>"    ,		_UpperCamelCase="<unk>"    ,		_UpperCamelCase="<pad>"    ,		_UpperCamelCase="<mask>"    ,		_UpperCamelCase=None    ,		_UpperCamelCase=None    ,		_UpperCamelCase=None    ,		_UpperCamelCase = None    ,		_UpperCamelCase=None    ,		**_UpperCamelCase    ,		)     ->							List[str]:
							# Mask token behave like a normal word, i.e. include the space before it
							UpperCAmelCase_   :				List[Any]						=						AddedToken(_UpperCamelCase    ,		lstrip=_UpperCamelCase    ,		rstrip=_UpperCamelCase       ) if isinstance(_UpperCamelCase    ,		_UpperCamelCase       ) else mask_token

							UpperCAmelCase_   :				Optional[int]						=						{} if sp_model_kwargs is None else sp_model_kwargs

							super().__init__(
							    bos_token=_UpperCamelCase    ,		eos_token=_UpperCamelCase    ,		unk_token=_UpperCamelCase    ,		sep_token=_UpperCamelCase    ,		cls_token=_UpperCamelCase    ,		pad_token=_UpperCamelCase    ,		mask_token=_UpperCamelCase    ,		tokenizer_file=_UpperCamelCase    ,		src_lang=_UpperCamelCase    ,		tgt_lang=_UpperCamelCase    ,		additional_special_tokens=_UpperCamelCase    ,		sp_model_kwargs=self.sp_model_kwargs    ,		**_UpperCamelCase    ,		)

							UpperCAmelCase_   :				Any						=						spm.SentencePieceProcessor(**self.sp_model_kwargs       )
							self.sp_model.Load(str(_UpperCamelCase       )       )
							UpperCAmelCase_   :				int						=						vocab_file

							# Original fairseq vocab and spm vocab must be "aligned":
							# Vocab    |    0    |    1    |   2    |    3    |  4  |  5  |  6  |   7   |   8   |  9
							# -------- | ------- | ------- | ------ | ------- | --- | --- | --- | ----- | ----- | ----
							# fairseq  | '<s>'   | '<pad>' | '</s>' | '<unk>' | ',' | '.' | '▁' | 's'   | '▁de' | '-'
							# spm      | '<unk>' | '<s>'   | '</s>' | ','     | '.' | '▁' | 's' | '▁de' | '-'   | '▁a'

							# Mimic fairseq token-to-id alignment for the first 4 token
							UpperCAmelCase_   :				List[str]						=						{'<s>': 0, '<pad>': 1, '</s>': 2, '<unk>': 3}

							# The first "real" token "," has position 4 in the original fairseq vocab and position 3 in the spm vocab
							UpperCAmelCase_   :				str						=						1

							UpperCAmelCase_   :				Optional[int]						=						len(self.sp_model       )
							UpperCAmelCase_   :				str						=						{
							    code: self.sp_model_size + i + self.fairseq_offset for i, code in enumerate(_UpperCamelCase       )
							}
							UpperCAmelCase_   :				int						=						{v: k for k, v in self.lang_code_to_id.items()}
							UpperCAmelCase_   :				List[Any]						=						len(self.sp_model       ) + len(self.lang_code_to_id       ) + self.fairseq_offset

							self.fairseq_tokens_to_ids.update(self.lang_code_to_id       )
							UpperCAmelCase_   :				Tuple						=						{v: k for k, v in self.fairseq_tokens_to_ids.items()}
							UpperCAmelCase_   :				int						=						list(self.lang_code_to_id.keys()       )

							if additional_special_tokens is not None:
												# Only add those special tokens if they are not already there.
												self._additional_special_tokens.extend(
												    [t for t in additional_special_tokens if t not in self._additional_special_tokens]       )

							UpperCAmelCase_   :				Any						=						src_lang if src_lang is not None else 'en_XX'
							UpperCAmelCase_   :				Any						=						self.lang_code_to_id[self._src_lang]
							UpperCAmelCase_   :				Dict						=						tgt_lang
							self.set_src_lang_special_tokens(self._src_lang       )



		def __getstate__(							self       )     ->							Dict:
							UpperCAmelCase_   :				Optional[int]						=						self.__dict__.copy()
							UpperCAmelCase_   :				str						=						None
							UpperCAmelCase_   :				str						=						self.sp_model.serialized_model_proto()
							return state



		def __setstate__(							self    ,		_UpperCamelCase       )     ->							Dict:
							UpperCAmelCase_   :				Union[str, Any]						=						d

							# for backward compatibility
							if not hasattr(self    ,		'sp_model_kwargs'       ):
												UpperCAmelCase_   :				Any						=						{}

							UpperCAmelCase_   :				Any						=						spm.SentencePieceProcessor(**self.sp_model_kwargs       )
							self.sp_model.LoadFromSerializedProto(self.sp_model_proto       )



		@property
		def  __UpperCAmelCase      (							self       )     ->							Tuple:
							return len(self.sp_model       ) + len(self.lang_code_to_id       ) + self.fairseq_offset + 1  # Plus 1 for the mask token



		@property
		def  __UpperCAmelCase      (							self       )     ->							str:
							return self._src_lang



		@src_lang.setter
		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							None:
							UpperCAmelCase_   :				Tuple						=						new_src_lang
							self.set_src_lang_special_tokens(self._src_lang       )



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase = None    ,		_UpperCamelCase = False       )     ->							List[int]:

							if already_has_special_tokens:
												return super().get_special_tokens_mask(
												    token_ids_a=_UpperCamelCase    ,		token_ids_a=_UpperCamelCase    ,		already_has_special_tokens=_UpperCamelCase       )

							UpperCAmelCase_   :				Tuple						=						[1] * len(self.prefix_tokens       )
							UpperCAmelCase_   :				Dict						=						[1] * len(self.suffix_tokens       )
							if token_ids_a is None:
												return prefix_ones + ([0] * len(_UpperCamelCase       )) + suffix_ones
							return prefix_ones + ([0] * len(_UpperCamelCase       )) + ([0] * len(_UpperCamelCase       )) + suffix_ones



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase = None       )     ->							List[int]:
							if token_ids_a is None:
												return self.prefix_tokens + token_ids_a + self.suffix_tokens
							# We don't expect to process pairs, but leave the pair logic for API consistency
							return self.prefix_tokens + token_ids_a + token_ids_a + self.suffix_tokens



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase = None       )     ->							List[int]:
							UpperCAmelCase_   :				int						=						[self.sep_token_id]
							UpperCAmelCase_   :				Optional[int]						=						[self.cls_token_id]

							if token_ids_a is None:
												return len(cls + token_ids_a + sep       ) * [0]
							return len(cls + token_ids_a + sep + sep + token_ids_a + sep       ) * [0]



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase    ,		_UpperCamelCase    ,		_UpperCamelCase    ,		**_UpperCamelCase       )     ->							int:
							if src_lang is None or tgt_lang is None:
												raise ValueError('Translation requires a `src_lang` and a `tgt_lang` for this model'       )
							UpperCAmelCase_   :				Optional[int]						=						src_lang
							UpperCAmelCase_   :				Dict						=						self(_UpperCamelCase    ,		add_special_tokens=_UpperCamelCase    ,		return_tensors=_UpperCamelCase    ,		**_UpperCamelCase       )
							UpperCAmelCase_   :				int						=						self.convert_tokens_to_ids(_UpperCamelCase       )
							UpperCAmelCase_   :				Any						=						tgt_lang_id
							return inputs



		def  __UpperCAmelCase      (							self       )     ->							str:
							UpperCAmelCase_   :				str						=						{self.convert_ids_to_tokens(_UpperCamelCase       ): i for i in range(self.vocab_size       )}
							vocab.update(self.added_tokens_encoder       )
							return vocab



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							List[str]:
							return self.sp_model.encode(_UpperCamelCase    ,		out_type=_UpperCamelCase       )



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							Tuple:
							if token in self.fairseq_tokens_to_ids:
												return self.fairseq_tokens_to_ids[token]
							UpperCAmelCase_   :				Dict						=						self.sp_model.PieceToId(_UpperCamelCase       )

							# Need to return unknown token if the SP model returned 0
							return spm_id + self.fairseq_offset if spm_id else self.unk_token_id



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							str:
							if index in self.fairseq_ids_to_tokens:
												return self.fairseq_ids_to_tokens[index]
							return self.sp_model.IdToPiece(index - self.fairseq_offset       )



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							Optional[int]:
							UpperCAmelCase_   :				Optional[int]						=						''.join(_UpperCamelCase       ).replace(_UpperCamelCase    ,		' '       ).strip()
							return out_string



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase = None       )     ->							Tuple[str]:
							if not os.path.isdir(_UpperCamelCase       ):
												logger.error(f"Vocabulary path ({save_directory}) should be a directory"       )
												return
							UpperCAmelCase_   :				List[Any]						=						os.path.join(
							    _UpperCamelCase    ,		(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']       )

							if os.path.abspath(self.vocab_file       ) != os.path.abspath(_UpperCamelCase       ) and os.path.isfile(self.vocab_file       ):
												copyfile(self.vocab_file    ,		_UpperCamelCase       )
							elif not os.path.isfile(self.vocab_file       ):
												with open(_UpperCamelCase    ,		'wb'       ) as fi:
																	UpperCAmelCase_   :				Optional[Any]						=						self.sp_model.serialized_model_proto()
																	fi.write(_UpperCamelCase       )

							return (out_vocab_file,)



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase    ,		_UpperCamelCase = "en_XX"    ,		_UpperCamelCase = None    ,		_UpperCamelCase = "ro_RO"    ,		**_UpperCamelCase    ,		)     ->							BatchEncoding:
							UpperCAmelCase_   :				Union[str, Any]						=						src_lang
							UpperCAmelCase_   :				Dict						=						tgt_lang
							return super().prepare_seqaseq_batch(_UpperCamelCase    ,		_UpperCamelCase    ,		**_UpperCamelCase       )



		def  __UpperCAmelCase      (							self       )     ->							Union[str, Any]:
							return self.set_src_lang_special_tokens(self.src_lang       )



		def  __UpperCAmelCase      (							self       )     ->							Optional[Any]:
							return self.set_tgt_lang_special_tokens(self.tgt_lang       )



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							None:
							UpperCAmelCase_   :				Any						=						self.lang_code_to_id[src_lang]
							UpperCAmelCase_   :				Optional[Any]						=						[]
							UpperCAmelCase_   :				str						=						[self.eos_token_id, self.cur_lang_code]



		def  __UpperCAmelCase      (							self    ,		_UpperCamelCase       )     ->							None:
							UpperCAmelCase_   :				Any						=						self.lang_code_to_id[lang]
							UpperCAmelCase_   :				Dict						=						[]
							UpperCAmelCase_   :				int						=						[self.eos_token_id, self.cur_lang_code]






