






import inspect
import os
import unittest

import torch

import accelerate
from accelerate import debug_launcher
from accelerate.test_utils import (
    execute_subprocess_async,
    require_cpu,
    require_huggingface_suite,
    require_multi_gpu,
    require_single_gpu,
)
from accelerate.utils import patch_environment


@require_huggingface_suite
class 					_snake_case						(			unittest.TestCase ):






	def    lowerCAmelCase_							(		self       )						->    Any:
					snake_case__      :Any         =   inspect.getfile(accelerate.test_utils       )
					snake_case__      :List[Any]         =   os.path.sep.join(
					    mod_file.split(os.path.sep       )[:-1] + ["scripts", "external_deps", "test_metrics.py"]       )

					from accelerate.test_utils.scripts.external_deps import test_metrics  # noqa: F401

					snake_case__      :List[Any]         =   test_metrics






	@require_cpu
	def    lowerCAmelCase_							(		self       )						->    int:
					debug_launcher(self.test_metrics.main					,num_processes=1       )






	@require_cpu
	def    lowerCAmelCase_							(		self       )						->    List[Any]:
					debug_launcher(self.test_metrics.main       )






	@require_single_gpu
	def    lowerCAmelCase_							(		self       )						->    Tuple:
					self.test_metrics.main()






	@require_multi_gpu
	def    lowerCAmelCase_							(		self       )						->    Tuple:
					print(f'Found {torch.cuda.device_count()} devices.'       )
					snake_case__      :Optional[int]         =   ["torchrun", f'--nproc_per_node={torch.cuda.device_count()}', self.test_file_path]
					with patch_environment(omp_num_threads=1       ):
									execute_subprocess_async(UpperCamelCase					,env=os.environ.copy()       )







__UpperCAmelCase							:   int							=  {"a": ["c", "b"], "b": ["d", "e"], "c": [], "d": [], "e": []}
__UpperCAmelCase							:   List[str]							=  ["a", "b", "c", "d", "e"]





def 					lowercase_ (    __snake_case     :							Optional[Any]	,	__snake_case     :							List[Any]	,	__snake_case     :							Tuple      )     -> Optional[int]:





				'''simple docstring'''


				snake_case__      :List[Any]         =   start
				# add current to visited
				visited.append(__snake_case      )
				snake_case__      :List[str]         =   edges[current]
				for neighbor in neighbors:
								# if neighbor not in visited, visit
								if neighbor not in visited:
												snake_case__      :Any         =   topological_sort(__snake_case	,	__snake_case	,	__snake_case      )
    # if all neighbors visited add current to sort
				sort.append(__snake_case      )
				# if all vertices haven't been visited select a new one to visit
				if len(__snake_case      ) != len(__snake_case      ):
								for vertice in vertices:
												if vertice not in visited:
																snake_case__      :Any         =   topological_sort(__snake_case	,	__snake_case	,	__snake_case      )
    # return sort
				return sort


if __name__ == "__main__":
	__UpperCAmelCase							:   Tuple							=  topological_sort("a", [], [])
	print(sort)