

"""simple docstring"""






import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_sentencepiece, require_tokenizers, require_torch, slow, torch_device


if is_torch_available():
 from transformers import AutoModelForSeqaSeqLM, AutoTokenizer







@require_torch
@require_sentencepiece
@require_tokenizers
class 	__UpperCamelCase    (    unittest.TestCase						):

  @slow
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      _lowerCAmelCase       :   str  =    AutoModelForSeqaSeqLM.from_pretrained('google/mt5-small'    ,return_dict=_A      ).to(_A      )
      _lowerCAmelCase       :   Union[str, Any]  =    AutoTokenizer.from_pretrained('google/mt5-small'      )

      _lowerCAmelCase       :   List[Any]  =    tokenizer('Hello there'    ,return_tensors='pt'      ).input_ids
      _lowerCAmelCase       :   Any  =    tokenizer('Hi I am'    ,return_tensors='pt'      ).input_ids

      _lowerCAmelCase       :   int  =    model(input_ids.to(_A      )    ,labels=labels.to(_A      )      ).loss
      _lowerCAmelCase       :   str  =    -(labels.shape[-1] * loss.item())

      _lowerCAmelCase       :   str  =    -84.9127
      self.assertTrue(abs(mtf_score - EXPECTED_SCORE      ) < 1E-4      )


"""simple docstring"""






import inspect
import os
import unittest

import torch

import accelerate
from accelerate import Accelerator
from accelerate.test_utils import execute_subprocess_async, require_multi_gpu
from accelerate.utils import patch_environment







class 	__UpperCamelCase    (    unittest.TestCase						):

  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      _lowerCAmelCase       :   Dict  =    inspect.getfile(accelerate.test_utils      )
      _lowerCAmelCase       :   Union[str, Any]  =    os.path.sep.join(mod_file.split(os.path.sep      )[:-1] + ['scripts', 'test_script.py']      )
      _lowerCAmelCase       :   int  =    os.path.sep.join(
          mod_file.split(os.path.sep      )[:-1] + ['scripts', 'test_distributed_data_loop.py']      )
      _lowerCAmelCase       :   Optional[Any]  =    os.path.sep.join(mod_file.split(os.path.sep      )[:-1] + ['scripts', 'test_ops.py']      )

  @require_multi_gpu
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      print(F"""Found {torch.cuda.device_count()} devices."""      )
      _lowerCAmelCase       :   int  =    ['torchrun', F"""--nproc_per_node={torch.cuda.device_count()}""", self.test_file_path]
      with patch_environment(omp_num_threads=1      ):
          execute_subprocess_async(_A    ,env=os.environ.copy()      )

  @require_multi_gpu
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      print(F"""Found {torch.cuda.device_count()} devices."""      )
      _lowerCAmelCase       :   str  =    ['torchrun', F"""--nproc_per_node={torch.cuda.device_count()}""", self.operation_file_path]
      print(F"""Command: {cmd}"""      )
      with patch_environment(omp_num_threads=1      ):
          execute_subprocess_async(_A    ,env=os.environ.copy()      )

  @require_multi_gpu
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      _lowerCAmelCase       :   List[Any]  =    ['torchrun', F"""--nproc_per_node={torch.cuda.device_count()}""", inspect.getfile(self.__class__      )]
      with patch_environment(omp_num_threads=1      ):
          execute_subprocess_async(_A    ,env=os.environ.copy()      )







  @require_multi_gpu
  def __lowerCamelCase		(		self      ):
      '''simple docstring'''

      print(F"""Found {torch.cuda.device_count()} devices, using 2 devices only"""      )
      _lowerCAmelCase       :   Tuple  =    ['torchrun', F"""--nproc_per_node={torch.cuda.device_count()}""", self.data_loop_file_path]
      with patch_environment(omp_num_threads=1    ,cuda_visible_devices='0,1'      ):
          execute_subprocess_async(_A    ,env=os.environ.copy()      )


if __name__ == "__main__":
 _lowerCAmelCase						=		Accelerator()
 _lowerCAmelCase						=		(accelerator.state.process_index + 2, 1_0)
 _lowerCAmelCase						=		torch.randint(0, 1_0, shape).to(accelerator.device)

 _lowerCAmelCase						=		""""""

 _lowerCAmelCase						=		accelerator.pad_across_processes(tensor)
 if tensora.shape[0] != accelerator.state.num_processes + 1:
  error_msg += F"Found shape {tensora.shape} but should have {accelerator.state.num_processes + 1} at dim 0."
 if not torch.equal(tensora[: accelerator.state.process_index + 2], tensor):
  error_msg += "Tensors have different values."
 if not torch.all(tensora[accelerator.state.process_index + 2 :] == 0):
  error_msg += "Padding was not done with the right value (0)."

 _lowerCAmelCase						=		accelerator.pad_across_processes(tensor, pad_first=True)
 if tensora.shape[0] != accelerator.state.num_processes + 1:
  error_msg += F"Found shape {tensora.shape} but should have {accelerator.state.num_processes + 1} at dim 0."
 _lowerCAmelCase						=		accelerator.state.num_processes - accelerator.state.process_index - 1
 if not torch.equal(tensora[index:], tensor):
  error_msg += "Tensors have different values."
 if not torch.all(tensora[:index] == 0):
  error_msg += "Padding was not done with the right value (0)."

 # Raise error at the end to make sure we don't stop at the first failure.
 if len(error_msg) > 0:
  raise ValueError(error_msg)





