파이썬 병렬 처리 joblib.Parallel

파이썬 병렬 처리 joblib.Parallel¶

In [1]:

from joblib import Parallel, delayed
from math import sqrt

In [2]:

def multiply(num):
    return num * num

In [3]:

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

CPU times: user 16.5 s, sys: 97.8 ms, total: 16.6 s
Wall time: 17.9 s

In [4]:

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

CPU times: user 1.09 s, sys: 64.3 ms, total: 1.15 s
Wall time: 2.21 s

In [ ]:

[참고] %%tim