使用多个参数运行相同 function 的多处理 Python

Question

I have a function say:

 Fun1(a,b):
   return a*b

I want to call Fun1, multiple times with different values of a and b. Need to use multiprocessing as Fun1 is an called millions of time in the

Answer 1

from concurrent.futures import ProcessPoolExecutor


def fun1(a, b):
    return a * b

# if __name__ == '__main__': is required for platforms that do not
# support fork(), such as Windows:
if __name__ == '__main__':
    a = [1, 2, 3]
    b = [4, 5, 6]
    with ProcessPoolExecutor(max_workers = 3) as executor:
        results = executor.map(fun1, a, b)
    for result in results:
        print(result)

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