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Mateusz779 2021-08-27 18:47:17 +02:00 committed by GitHub
parent ae205f8738
commit 59c00f2f76
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1 changed files with 9 additions and 16 deletions
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BBP multithreading.py
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@ -13,11 +13,13 @@ from multiprocessing.dummy import Pool as Pool
from tqdm import tqdm from tqdm import tqdm
import argparse import argparse
def pi(start): def pi(start):
getcontext().prec=count-start getcontext().prec = count - start
for k in range (start,int(start+one_count)): for k in range(start, int(start + one_count)):
pbar.update(1) pbar.update(1)
list_all[k]=(1/Decimal(16)**k * (Decimal(4)/(8*k+1) - Decimal(2)/(8*k+4) - Decimal(1)/(8*k+5) - Decimal(1)/(8*k+6))) list_all[k] = (1/Decimal(16)**k * (Decimal(4)/(8*k+1) - Decimal(2)/(8*k+4) - Decimal(1)/(8*k+5) - Decimal(1)/(8*k+6)))
def main(): def main():
global count global count
@ -26,7 +28,7 @@ def main():
global tasks global tasks
global one_count global one_count
parser = argparse.ArgumentParser(description='The script computes the number pi.') parser = argparse.ArgumentParser(description='The script computes the number pi.')
parser.add_argument('-t', '--threads', help="Number of threads default 4", required=False,type=int, default=4) parser.add_argument('-t', '--threads', help="Number of threads default 4", required=False, type=int, default=4)
parser.add_argument('-c', '--count', help="Number of numbers after the point default 10000", required=False,type=int, default=10000) parser.add_argument('-c', '--count', help="Number of numbers after the point default 10000", required=False,type=int, default=10000)
parser.add_argument('-f', '--filename', help="File to save result", required=False) parser.add_argument('-f', '--filename', help="File to save result", required=False)
args = parser.parse_args() args = parser.parse_args()
@ -45,7 +47,6 @@ def main():
one_count=int(count/tasks) one_count=int(count/tasks)
start_table = [int((one_count * i)) for i in range(tasks)] start_table = [int((one_count * i)) for i in range(tasks)]
start = time.time() start = time.time()
with Pool(processes=threads) as pool: with Pool(processes=threads) as pool:
results = pool.starmap( results = pool.starmap(
@ -69,11 +70,3 @@ def main():
f.close() f.close()
if __name__ == "__main__": if __name__ == "__main__":
main() main()