안녕Ȣ16;세요
파1060;썬1004;/196; 1228;가 사용Ȣ16;lj16; 계산1012; 1088;ᇼ1;1004;/196; 처리Ȣ16;/140;고 Ȣ16;lj16;데,
1648;금까1648;lj16; 1228;가 1060;/111;,172; 사용했습니다. (1228;대/196; 1680;,148;1648;lj16; 모르,192;1648;만 1068;단 1089;ᇼ1;1008; 1096;.104;네요).
계산 한번에 10ǥ16;1060; ,152;린다고 Ȣ16;면 (코Ǻ12; 1개만 사용합니다), 순차1201;1004;/196; 10ǥ16;씩 ,152;/140;서 -149;DŽ16; ǐ12; 까1648; 너무 오래,152;립니다.
cpu 코Ǻ12;가 32개라서 ᇼ1;시에 계산1012; Ȣ16;고dz10;1008;데, 가능한가요??
1312;Ǻ16;ǥ12;ᓠ1;드립니다.
감사합니다.
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https://blog.naver.com/PostView.nhn?blogId=woosoung1993&logNo=221639525899
for ¹® ¾øÀÌ Çϳª¸¸ ÇÒ ¼ö ÀÖ´Â ½ºÅ©¸³Æ®¸¦ 10°³ µû·Î (µ¿½Ã¿¡ ¹é±×¶ó¿îµå·Î) µ¹¸®´Â °ÍÀÌ ÁÁÁö¾ÊÀ»±î¿ä??
from concurrent.futures import ThreadPoolExecutor
def _do_work(i):
command = "..."
p = Popen(command, ...)
p.communicate(...)
with ThreadPoolExecutor(32) as pool:
pool.map(_do_work, [110, 120, ...])
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ÇÏÁö¸¸, processµéÀÌ °°Àº ¸®¼Ò½º¸¦ °øÀ¯Çؼ »ç¿ëÇØ¾ß ÇÑ´Ù¸é, °á°ú´Â µ¿ÀÏÇÒ °Å¶ó°í »ý°¢µË´Ï´Ù.
Àý´ë ±×·² ÀÏÀÌ ¾È »ý±â°Ô ¿¹¸¦ µé¾î ¾Æ·¡Ã³·³ ¹«ÇÑ loopÀ» Çϳª ¸¸µé°í...
root@ubuntu-20:~/python_subprocess# cat loop.c
#include <unistd.h>
#include <stdio.h>
int main(void)
{
while (1) {
usleep(1);
}
}
ÄÄÆÄÀÏ ÇÑ ´ÙÀ½, ÆÄÀ̽㿡¼ µ¹·Áº¸¸é...
root@ubuntu-20:~/python_subprocess# python3
Python 3.8.2 (default, Apr 27 2020, 15:53:34)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> proc_list = []
>>> for x in range(10):
... proc_list.append(subprocess.Popen(["./loop"]))
...
>>> proc_list
[<subprocess.Popen object at 0x7f2bdbc332b0>, <subprocess.Popen object at 0x7f2bdbc67520>, <subprocess.Popen object at 0x7f2bdbc67cd0>, <subprocess.Popen object at 0x7f2bdbbe4070>, <subprocess.Popen object at 0x7f2bdbbe40a0>, <subprocess.Popen object at 0x7f2bdbbe4130>, <subprocess.Popen object at 0x7f2bdbbe4190>, <subprocess.Popen object at 0x7f2bdbbe41f0>, <subprocess.Popen object at 0x7f2bdbbe4880>, <subprocess.Popen object at 0x7f2bdbbe48b0>]
Àß »ì¾Æ ÀÖ´ÂÁö È®ÀÎ... NoneÀ» ¸®ÅÏÇϸé Á×Áö ¾Ê°í »ì¾Ò´Ù´Â ÀǹÌÀÓ.
>>> [x.poll() for x in proc_list]
[None, None, None, None, None, None, None, None, None, None]
>>>
´Ù¸¥ â¿¡¼ µ¹¾Æ°¡°í ÀÖ´Â Áö È®ÀÎ...
root@ubuntu-20:~/python_subprocess# ps ax | grep ./loop
6519 pts/2 S 0:15 ./loop
6520 pts/2 S 0:15 ./loop
6521 pts/2 S 0:15 ./loop
6522 pts/2 S 0:15 ./loop
6523 pts/2 S 0:15 ./loop
6524 pts/2 R 0:15 ./loop
6525 pts/2 S 0:15 ./loop
6526 pts/2 S 0:15 ./loop
6527 pts/2 S 0:15 ./loop
6528 pts/2 S 0:15 ./loop
topÀ¸·Î È®ÀÎÇصµ ÀúÁ¤µµ¸é »óÀ§ 10°³¸¦ Â÷ÁöÇÏ°í ÀÖÀ» °Å°í¿ä.