I would like to utilize multi-core in a Windows environment other than Linux.
If you accidentally interrupt, only the main process will be interrupted, and the rest will continue to spin like an infinite loop.
Eight-core 16 threads, 15 survived and kept eating CPU behind you
Now, I'm finding it one by one from the task manager and killing it, but I think there's a way to kill it in a pretty way.
Please share your know-how.
python multiprocessing
Execution Code
import time
from multiprocessing import Process
def f(name):
while(True):
print('hello', name)
time.sleep(10)
if __name__ == '__main__':
a = ['Bob','John','Howoni']
ps = []
for i in a:
p = Process(target=f, args=(i,))
ps.append(p)
p.start()
print(p, 'start')
try:
for i in ps:
i.join()
except KeyboardInterrupt:
for i in ps:
i.terminate()
print(i, 'terminate')
Execution result (^C = keyboard interrupt)
<Process(Process-1, started)> start
hello Bob
<Process(Process-2, started)> start
hello John
<Process(Process-3, started)> start
hello Howoni
hello Bob
hello John
hello Howoni
^C<Process(Process-1, started)> terminate
Process Process-3:
Process Process-2:
<Process(Process-2, started)> terminate
<Process(Process-3, started)> terminate
Runtime Process
howoni 45 7 0 21:02 tty1 00:00:00 python3
howoni 225 7 5 21:18 tty1 00:00:00 python3 456.py
howoni 226 225 0 21:18 tty1 00:00:00 python3 456.py
howoni 227 225 0 21:18 tty1 00:00:00 python3 456.py
howoni 228 225 0 21:18 tty1 00:00:00 python3 456.py
howoni 230 71 0 21:18 tty2 00:00:00 grep --color=auto python
Post-keyboard Interrupt Process
howoni 45 7 0 21:02 tty1 00:00:00 python3
howoni 232 71 0 21:18 tty2 00:00:00 grep --color=auto python
When KeyboardInterruptException occurs
You can terminate() this process.
© 2024 OneMinuteCode. All rights reserved.