from multiprocessing import Pool
import time

COUNT = 50000000


def countdown(n):
    while n > 0:
        n -= 1


if __name__ == "__main__":
    pool = Pool(processes=2)
    start = time.time()
    r1 = pool.apply_async(countdown, [COUNT // 2])
    r2 = pool.apply_async(countdown, [COUNT // 2])
    pool.close()
    pool.join()
    end = time.time()
    print("Time taken in seconds -", end - start)