from __future__ import annotations
def 			UpperCamelCase__						(    A__   )       -> list[int]:
				snake_case__ :     str 							=				[0] * len(A__   )
				for i in range(1      ,			len(A__   )   ):
								snake_case__ :     Optional[Any] 							=				duration_times[i - 1] + waiting_times[i - 1]
				return waiting_times
def 			UpperCamelCase__						(    A__      ,			A__   )       -> list[int]:
				return [
				    duration_time + waiting_times[i]
				    for i, duration_time in enumerate(A__   )
				]
def 			UpperCamelCase__						(    A__   )       -> float:
				return sum(A__   ) / len(A__   )
def 			UpperCamelCase__						(    A__   )       -> float:
				return sum(A__   ) / len(A__   )


if __name__ == "__main__":
				# process id's
				lowerCAmelCase__					:       Any		=       [1, 2, 3]

				# ensure that we actually have processes
				if len(processes) == 0:
								print('''Zero amount of processes''')
								raise SystemExit(0)

				# duration time of all processes
				lowerCAmelCase__					:       Optional[Any]		=       [19, 8, 9]

				# ensure we can match each id to a duration time
				if len(duration_times) != len(processes):
								print('''Unable to match all id\'s with their duration time''')
								raise SystemExit(0)

				# get the waiting times and the turnaround times
				lowerCAmelCase__					:       Optional[Any]		=       calculate_waiting_times(duration_times)
				lowerCAmelCase__					:       Any		=       calculate_turnaround_times(duration_times, waiting_times)

				# get the average times
				lowerCAmelCase__					:       List[str]		=       calculate_average_waiting_time(waiting_times)
				lowerCAmelCase__					:       List[str]		=       calculate_average_turnaround_time(turnaround_times)

				# print all the results
				print('''Process ID\tDuration Time\tWaiting Time\tTurnaround Time''')
				for i, process in enumerate(processes):
								print(
								    F'''{process}\t\t{duration_times[i]}\t\t{waiting_times[i]}\t\t'''
								    F'''{turnaround_times[i]}'''
								)
				print(F'''Average waiting time = {average_waiting_time}''')
				print(F'''Average turn around time = {average_turnaround_time}''')



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 			__snake_case  (      unittest.TestCase     ):




					def       __a      (       self		)					->  Union[str, Any]:



									'''simple docstring'''







									snake_case__ :     List[Any] 							=				inspect.getfile(accelerate.test_utils		)
									snake_case__ :     Tuple 							=				os.path.sep.join(mod_file.split(os.path.sep		)[:-1] + ['scripts', 'test_sync.py']		)




					@require_cpu
					def       __a      (       self		)					->  int:



									'''simple docstring'''







									debug_launcher(test_sync.main   ,	num_processes=1		)




					@require_cpu
					def       __a      (       self		)					->  Dict:



									'''simple docstring'''







									debug_launcher(test_sync.main		)




					@require_single_gpu
					def       __a      (       self		)					->  int:



									'''simple docstring'''







									test_sync.main()




					@require_multi_gpu
					def       __a      (       self		)					->  str:



									'''simple docstring'''







									print(F"""Found {torch.cuda.device_count()} devices."""		)
									snake_case__ :     Any 							=				['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()		)


