joblib.Parallel 파이썬 병렬처리 예시

joblib.Parallel 파이썬 병렬처리 예시¶

In [2]:

from joblib import Parallel, delayed
from math import sqrt

In [3]:

def multiply(num):
    return num * num

Parallel(n_jobs=병렬처리 수)(delayed(함수)(인자) for i in range(0,100000))¶

In [4]:

%%time
a= Parallel(n_jobs=1)(delayed(multiply)(i) for i in range(0,100000))

CPU times: user 3.56 s, sys: 34.8 ms, total: 3.6 s
Wall time: 3.63 s

In [5]:

%%time
a = Parallel(n_jobs=2)(delayed(multiply)(i) for i in range(0,100000))

CPU times: user 331 ms, sys: 46.2 ms, total: 377 ms
Wall time: 608 ms