



"""simple docstring"""
from ...configuration_utils import PretrainedConfig
from ...utils import logging


__SCREAMING_SNAKE_CASE  :						List[Any]    							=      logging.get_logger(__name__)

__SCREAMING_SNAKE_CASE  :						Optional[Any]    							=      {
    '''alibaba-damo/mgp-str-base''': '''https://huggingface.co/alibaba-damo/mgp-str-base/resolve/main/config.json''',
}


class 							lowerCamelCase_(   A__    ):





					'''simple docstring'''



					lowercase__   :       Union[str, Any]										= 'mgp-str'

					def __init__(    self				,       lowerCamelCase__=[3_2, 1_2_8]				,       lowerCamelCase__=4				,       lowerCamelCase__=3				,       lowerCamelCase__=2_7				,       lowerCamelCase__=3_8				,       lowerCamelCase__=5_0_2_5_7				,       lowerCamelCase__=3_0_5_2_2				,       lowerCamelCase__=7_6_8				,       lowerCamelCase__=1_2				,       lowerCamelCase__=1_2				,       lowerCamelCase__=4.0				,       lowerCamelCase__=True				,       lowerCamelCase__=False				,       lowerCamelCase__=1e-5				,       lowerCamelCase__=0.0				,       lowerCamelCase__=0.0				,       lowerCamelCase__=0.0				,       lowerCamelCase__=False				,       lowerCamelCase__=0.0_2				,       **lowerCamelCase__				,       ):
									super().__init__(**lowerCamelCase__   )

									_lowerCamelCase        =				image_size
									_lowerCamelCase        =				patch_size
									_lowerCamelCase        =				num_channels
									_lowerCamelCase        =				max_token_length
									_lowerCamelCase        =				num_character_labels
									_lowerCamelCase        =				num_bpe_labels
									_lowerCamelCase        =				num_wordpiece_labels
									_lowerCamelCase        =				hidden_size
									_lowerCamelCase        =				num_hidden_layers
									_lowerCamelCase        =				num_attention_heads
									_lowerCamelCase        =				mlp_ratio
									_lowerCamelCase        =				distilled
									_lowerCamelCase        =				layer_norm_eps
									_lowerCamelCase        =				drop_rate
									_lowerCamelCase        =				qkv_bias
									_lowerCamelCase        =				attn_drop_rate
									_lowerCamelCase        =				drop_path_rate
									_lowerCamelCase        =				output_aa_attentions
									_lowerCamelCase        =				initializer_range





"""simple docstring"""
import logging

import torch
from accelerate import Accelerator
from arguments import EvaluationArguments
from datasets import load_dataset
from torch.utils.data import IterableDataset
from torch.utils.data.dataloader import DataLoader

from transformers import AutoModelForCausalLM, AutoTokenizer, HfArgumentParser, set_seed


class 							lowerCamelCase_(   A__    ):





					'''simple docstring'''



					def __init__(    self				,       lowerCamelCase__				,       lowerCamelCase__				,       lowerCamelCase__=1_0_2_4				,       lowerCamelCase__=1_0_2_4				,       lowerCamelCase__=3.6   ):
									_lowerCamelCase        =				tokenizer
									_lowerCamelCase        =				tokenizer.bos_token_id
									_lowerCamelCase        =				dataset
									_lowerCamelCase        =				seq_length
									_lowerCamelCase        =				seq_length * chars_per_token * num_of_sequences





					def __iter__(    self   ):
									_lowerCamelCase        =				iter(self.dataset   )
									_lowerCamelCase        =				True
									while more_examples:
													_lowerCamelCase  ,     _lowerCamelCase        =				[], 0
													while True:
																	if buffer_len >= self.input_characters:
																					break
																	try:
																					buffer.append(next(lowerCamelCase__   )['''content''']   )
																					buffer_len += len(buffer[-1]   )
																	except StopIteration:
																					_lowerCamelCase        =				False
																					break
													_lowerCamelCase        =				tokenizer(lowerCamelCase__				,       truncation=lowerCamelCase__   )['''input_ids''']
													_lowerCamelCase        =				[]
													for tokenized_input in tokenized_inputs:
																	all_token_ids.extend(tokenized_input + [self.concat_token_id]   )
													for i in range(0				,       len(lowerCamelCase__   )				,       self.seq_length   ):
																	_lowerCamelCase        =				all_token_ids[i : i + self.seq_length]
																	if len(lowerCamelCase__   ) == self.seq_length:
																					yield torch.tensor(lowerCamelCase__   )



def        lowerCAmelCase_(   lowercase_     :							Any							)	->       Optional[Any]:
				_lowerCamelCase        =				{'''streaming''': True}
				_lowerCamelCase        =				load_dataset(args.dataset_name						,   split='''train'''						,   **lowercase_							)
				_lowerCamelCase        =				ConstantLengthDataset(lowercase_						,   lowercase_						,   seq_length=args.seq_length							)
				_lowerCamelCase        =				DataLoader(lowercase_						,   batch_size=args.batch_size							)
				return eval_dataloader



def        lowerCAmelCase_(   lowercase_     :							Tuple							)	->       str:
				model.eval()
				_lowerCamelCase        =				[]
				for step, batch in enumerate(lowercase_							):
								with torch.no_grad():
												_lowerCamelCase        =				model(lowercase_						,   labels=lowercase_							)
								_lowerCamelCase        =				outputs.loss.repeat(args.batch_size							)
								losses.append(accelerator.gather(lowercase_							)							)

								if args.max_eval_steps > 0 and step >= args.max_eval_steps:
												break
				_lowerCamelCase        =				torch.mean(torch.cat(lowercase_							)							)
				try:
								_lowerCamelCase        =				torch.exp(lowercase_							)
				except OverflowError:
								_lowerCamelCase        =				float('''inf'''							)
				return loss.item(), perplexity.item()


# Setup Accelerator
__SCREAMING_SNAKE_CASE  :						Dict    							=      Accelerator()

# Parse configuration
__SCREAMING_SNAKE_CASE  :						Tuple    							=      HfArgumentParser(EvaluationArguments)
__SCREAMING_SNAKE_CASE  :						Optional[int]    							=      parser.parse_args()
set_seed(args.seed)

# Logging
__SCREAMING_SNAKE_CASE  :						Optional[Any]    							=      logging.getLogger(__name__)
logging.basicConfig(
    format='''%(asctime)s - %(levelname)s - %(name)s - %(message)s''', datefmt='''%m/%d/%Y %H:%M:%S''', level=logging.INFO
)

# Load model and tokenizer
__SCREAMING_SNAKE_CASE  :						str    							=      AutoModelForCausalLM.from_pretrained(args.model_ckpt)
__SCREAMING_SNAKE_CASE  :						Union[str, Any]    							=      AutoTokenizer.from_pretrained(args.model_ckpt)

# Load dataset and dataloader
__SCREAMING_SNAKE_CASE  :						str    							=      create_dataloader(args)

# Prepare everything with our `accelerator`.
__SCREAMING_SNAKE_CASE							,					__SCREAMING_SNAKE_CASE  :						Any    							=      accelerator.prepare(model, eval_dataloader)

# Evaluate and save the last checkpoint
logger.info('''Evaluating and saving model after training''')
__SCREAMING_SNAKE_CASE							,					__SCREAMING_SNAKE_CASE  :						List[str]    							=      evaluate(args)




logger.info(F"""loss/eval: {eval_loss}, perplexity: {perplexity}""")
