/Python/Multiprocessing pool pass additional arguments

Multiprocessing pool pass additional arguments

#!/usr/bin/env python3
from functools import partial
from itertools import repeat
from multiprocessing import Pool, freeze_support

def func(a, b):
    return a + b

def main():
    a_args = [1,2,3]
    second_arg = 1
    with Pool() as pool:
        L = pool.starmap(func, [(1, 1), (2, 1), (3, 1)])
        M = pool.starmap(func, zip(a_args, repeat(second_arg)))
        N = pool.map(partial(func, b=second_arg), a_args)
        assert L == M == N

if __name__=="__main__":
    freeze_support()
    main()

Source: stackoverflow.com

Similar codes

9 votes188 views2 answers
Django import Q
Python Django
15 votes164 views2 answers
How to run a python script
Python
0 vote146 views2 answers
Convert uint8 to double in python
Python
0 vote160 views1 answer
Django template child data in nested loop
Python
0 vote151 views1 answer
Packing and unpacking in python
Python
0 vote173 views1 answer
Lamda in f string
Python
0 vote145 views1 answer
Start python project
Python
1 vote143 views1 answer
Typage in python
Python
0 vote145 views1 answer
Matplotlib savefig size
Python
1 vote155 views1 answer
Write data to using pickle
Python