



'''simple docstring'''

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_multi_gpu,
    require_single_gpu,
    test_sync,
)
from accelerate.utils import patch_environment

class 			__magic_name__		(					unittest.TestCase     ):







							def 							__lowercase    (							self      : int	):
									_a  :   List[Any]				 =							inspect.getfile(accelerate.test_utils	)
									_a  :   List[Any]				 =							os.path.sep.join(mod_file.split(os.path.sep	)[:-1] + ['scripts', 'test_sync.py']	)







							@require_cpu
							def 							__lowercase    (							self      : Optional[Any]	):
									debug_launcher(test_sync.main			,num_processes=1	)







							@require_cpu
							def 							__lowercase    (							self      : List[str]	):
									debug_launcher(test_sync.main	)







							@require_single_gpu
							def 							__lowercase    (							self      : List[str]	):
									test_sync.main()







							@require_multi_gpu
							def 							__lowercase    (							self      : Any	):
									print(F"""Found {torch.cuda.device_count()} devices."""	)
									_a  :   Union[str, Any]				 =							['''torchrun''', F"""--nproc_per_node={torch.cuda.device_count()}""", self.test_file_path]
									with patch_environment(omp_num_threads=1	):
											execute_subprocess_async(_snake_case			,env=os.environ.copy()	)









'''simple docstring'''

def   __lowerCamelCase  (   lowerCAmelCase_						)    ->   tuple[int, int]:
		# base case
		if len(lowerCAmelCase_						) == 1:
				return a[0], a[0]
		else:
				# split A into half.
				_a  :   Union[str, Any]				 =							a[: len(lowerCAmelCase_						) // 2]
				_a  :   List[Any]				 =							a[len(lowerCAmelCase_						) // 2 :]

				# 2 sub problems, 1/2 of original size.
				_a ,      _a  :   Any				 =							max_difference(lowerCAmelCase_						)
				_a ,      _a  :   Any				 =							max_difference(lowerCAmelCase_						)

				# get min of first and max of second
				# linear time
				_a  :   Union[str, Any]				 =							min(lowerCAmelCase_						)
				_a  :   Optional[int]				 =							max(lowerCAmelCase_						)

				# 3 cases, either (small1, big1),
				# (min_first, max_second), (small2, big2)
				# constant comparisons
				if biga - smalla > max_second - min_first and biga - smalla > biga - smalla:
						return smalla, biga
				elif biga - smalla > max_second - min_first:
						return smalla, biga
				else:
						return min_first, max_second


if __name__ == "__main__":
							import doctest

							doctest.testmod()




