使用 python 簡單實現多 cpu 平行處理

 import multiprocessing as mp
import time
def iso_task(k):
    print(f"task {k} @{time.time()} sec: sleep for 1 second")
    time.sleep(1)
    print(f"task {k} @{time.time()} sec: finish.")

n = mp.cpu_count()
print(f"Total CPUs = {n}")
tasks = []
start_time = time.time()

for i in range(n): # prepare all tasks to run
    task = mp.Process(target=iso_task, args=(i,))
    tasks.append(task)    
for i in range(n): # fire all tasks at the same time
    tasks[i].start()
for i in range(n): # wait all tasks to finish
    tasks[i].join()

dt = time.time() - start_time
print(f"{round(dt, 3)} sec elapsed")