






from arguments import TokenizerTrainingArguments
from datasets import load_dataset
from tqdm import tqdm

from transformers import AutoTokenizer, HfArgumentParser
from transformers.models.gpta.tokenization_gpta import bytes_to_unicode






def    UpperCAmelCase__	(						lowerCamelCase  : str=10						):
   for _ in tqdm(range(0 ,args.n_examples ,lowerCamelCase						)						):
      yield [next(lowerCamelCase						)[args.text_column] for _ in range(lowerCamelCase						)]


# Configuration
_UpperCAmelCase				:	Tuple       =    HfArgumentParser(TokenizerTrainingArguments)
_UpperCAmelCase				:	Any       =    parser.parse_args()

# Base tokenizer
_UpperCAmelCase				:	List[Any]       =    AutoTokenizer.from_pretrained(args.base_tokenizer)
_UpperCAmelCase				:	Union[str, Any]       =    list(bytes_to_unicode().values())

# Load dataset
_UpperCAmelCase				:	List[Any]       =    load_dataset(args.dataset_name, split='train', streaming=True)
_UpperCAmelCase				:	str       =    iter(dataset)


# Training and saving
_UpperCAmelCase				:	Optional[int]       =    tokenizer.train_new_from_iterator(
    batch_iterator(), vocab_size=args.vocab_size, initial_alphabet=base_vocab
)







new_tokenizer.save_pretrained(args.tokenizer_name, push_to_hub=args.push_to_hub)







import os
from dataclasses import replace

import jax
import wandb
from bigbird_flax import Args, DataCollator, FlaxBigBirdForNaturalQuestions, Trainer, build_tx, train_step, val_step
from datasets import load_dataset
from flax import jax_utils

from transformers import BigBirdTokenizerFast


if __name__ == "__main__":
   print('#################### AVAILABLE DEVICES ####################')
   print(jax.devices())
   print('###########################################################')

   # setup for wandb sweep
   _UpperCAmelCase				:	Optional[Any]    						=    Args()
   _UpperCAmelCase				:	Tuple    						=    wandb.init(project='bigbird-natural-questions', config=args.__dict__)
   _UpperCAmelCase				:	Optional[Any]    						=    dict(logger.config)
   del wandb_args["batch_size"]
   _UpperCAmelCase				:	str    						=    replace(args, **wandb_args)
   _UpperCAmelCase				:	Dict    						=    args.base_dir + '-' + wandb.run.id
   _UpperCAmelCase				:	Tuple    						=    replace(args, base_dir=base_dir)
   print(args)

   _UpperCAmelCase				:	List[Any]    						=    load_dataset('json', data_files=args.tr_data_path)['train']
   _UpperCAmelCase				:	Dict    						=    load_dataset('json', data_files=args.val_data_path)['train']

   # drop extra batch for now
   _UpperCAmelCase				:	List[str]    						=    range(len(tr_dataset) - len(tr_dataset) % args.batch_size)
   _UpperCAmelCase				:	List[Any]    						=    tr_dataset.shuffle().select(indices)
   _UpperCAmelCase				:	Any    						=    range(len(val_dataset) - len(val_dataset) % args.batch_size)
   _UpperCAmelCase				:	Union[str, Any]    						=    val_dataset.shuffle().select(indices)

   if os.environ.get('TRAIN_ON_SMALL', 'false') == "true":
      _UpperCAmelCase				:	Optional[Any]    						=    tr_dataset.shuffle().select(range(8_0000))
      _UpperCAmelCase				:	List[Any]    						=    val_dataset.shuffle().select(range(8000))

   print(tr_dataset)
   print(val_dataset)

   _UpperCAmelCase				:	int    						=    FlaxBigBirdForNaturalQuestions.from_pretrained(
       args.model_id, block_size=args.block_size, num_random_blocks=args.num_random_blocks
   )
   _UpperCAmelCase				:	Union[str, Any]    						=    BigBirdTokenizerFast.from_pretrained(args.model_id)
   _UpperCAmelCase				:	List[str]    						=    DataCollator(pad_id=tokenizer.pad_token_id, max_length=4096)

   _UpperCAmelCase				:	Any    						=    {
       'lr': args.lr,
       'init_lr': args.init_lr,
       'warmup_steps': args.warmup_steps,
       'num_train_steps': args.max_epochs * (len(tr_dataset) // args.batch_size),
       'weight_decay': args.weight_decay,
   }
   _UpperCAmelCase						,						_UpperCAmelCase				:	Optional[int]    						=    build_tx(**tx_args)

   _UpperCAmelCase				:	List[Any]    						=    Trainer(
       args=args,
       data_collator=data_collator,
       model_save_fn=model.save_pretrained,
       train_step_fn=train_step,
       val_step_fn=val_step,
       logger=logger,
       scheduler_fn=lr,
   )

   _UpperCAmelCase				:	Union[str, Any]    						=    None
   _UpperCAmelCase				:	Optional[Any]    						=    trainer.create_state(model, tx, num_train_steps=tx_args['num_train_steps'], ckpt_dir=ckpt_dir)
   try:
      trainer.train(state, tr_dataset, val_dataset)
   except KeyboardInterrupt:
      print('Oooops; TRAINING STOPPED UNFORTUNATELY')

   print('SAVING WEIGHTS IN `final-weights`')
   _UpperCAmelCase				:	Optional[int]    						=    jax_utils.unreplicate(state.params)
   model.save_pretrained(os.path.join(args.base_dir, 'final-weights'), params=params)