python 在不同CPU上同时运行多个程序
2024-09-05 21:49:16
In [24]: import os
In [25]: import numpy as np
In [26]: from multiprocessing import Process
In [27]: class MyProc(Process):
...: def __init__(self, num):
...: self.num = num
...: super().__init__()
...:
...: def run(self):
...: print(f'Process {self.num} starting...PID {os.getpid()}')
...: np.random.seed(self.num)
...: total = np.sum([np.random.randint(10_000)
for _ in range(10_000_000)])
...: print(f'Total sum = {total}')
...:
In [28]: procs = [MyProc(i) for i in range(2)]
In [29]: for p in procs:
...: p.start()
...:
Process 0 starting...PID 92402
Process 1 starting...PID 92403
In [30]: for p in procs:
...: p.join()
...:
Total sum = 50003085304
Total sum = 49988200971
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