{"id":11913,"date":"2019-08-25T02:01:22","date_gmt":"2019-08-24T17:01:22","guid":{"rendered":"http:\/\/melotopia.net\/b\/?p=11913"},"modified":"2019-08-25T02:01:22","modified_gmt":"2019-08-24T17:01:22","slug":"python-multiprocess","status":"publish","type":"post","link":"http:\/\/melotopia.net\/b\/?p=11913","title":{"rendered":"python multiprocess"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\ud30c\uc774\uc36c\uc744 \uc774\uc6a9\ud574\uc11c \uba40\ud2f0\ud504\ub85c\uc138\uc2a4\ub97c \ub3cc\ub9ac\ub294 \uc608\uc81c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">import multiprocessing as mp # \uba40\ud2f0\ud504\ub85c\uc138\uc2f1\uc744 \ud558\uae30 \uc704\ud574 \ubaa8\ub4c8\uc744 \uac16\uace0 \uc628\ub2e4.<br> def myfunction(a, b): # \uba40\ud2f0\ud504\ub85c\uc138\uc2f1\uc5d0 \uc0ac\uc6a9\ud560 \ud568\uc218 \uc608\uc81c. <br>     b=a*3<br>     return<br> master=mp.Manager() # \uc5ec\uae30\uc11c \uba40\ud2f0\ud504\ub85c\uc138\uc2f1 \ub9c8\uc2a4\ud130 \ub9e4\ub2c8\uc800\ub97c \uc815\uc758\ud55c\ub2e4.<br> processes=[] # \ud504\ub85c\uc138\uc2a4\ub97c \ubbf8\ub9ac \uc900\ube44\uc2dc\ucf1c \ub458 \ub9ac\uc2a4\ud2b8.<br> startedprocesses=[] # \uc2dc\uc791\ub41c \ud504\ub85c\uc138\uc2a4\ub97c \ub123\uc5b4\ub458 \ub9ac\uc2a4\ud2b8.<br> res=master.dict({}) # \ud504\ub85c\uc138\uc2a4\uc758 \uc2e4\ud589 \uacb0\uacfc\ub97c \ub123\uc5b4\ub458 \ub9ac\uc2a4\ud2b8. \ub9c8\uc2a4\ud130 \ub9e4\ub2c8\uc800\uc5d0 \ubd99\uc5b4\uc788\ub294 \ud615\uc2dd\uc73c\ub85c \uc120\uc5b8\ud574\uc57c \uba40\ud2f0\ud504\ub85c\uc138\uc2f1\uc5d0\uc11c \uc798 \uc791\ub3d9\ud55c\ub2e4.<br> for s in input_data_list: # \ud504\ub85c\uc138\uc2a4\uc5d0 \ub123\uc744 \uac12\ub4e4\uc758 \ub9ac\uc2a4\ud2b8\ub85c \ub3cc\ub9ac\ub294 for \uad6c\ubb38<br>     processes.append( <br>         mp.Process(<br>             target=myfunction, args=(s,res))) <br>             # processes\ub294 \ud504\ub85c\uc138\uc2a4\ub97c \ubbf8\ub9ac \uc900\ube44\uc2dc\ucf1c \ub458 \ud3c9\ubc94\ud55c \ub9ac\uc2a4\ud2b8\uc600\ub2e4. \uc5ec\uae30\uc5d0 \ud504\ub85c\uc138\uc2a4\ub97c \uc900\ube44\uc2dc\ucf1c\uc11c \ub123\uc5b4\ub454\ub2e4.<br>             # \uba40\ud2f0\ud504\ub85c\uc138\uc2f1 \ubaa8\ub4c8\uc740 \ud504\ub85c\uc138\uc2a4\ub97c \ucc0d\uc5b4\ub0b4\uae30 \uc704\ud55c \ud074\ub798\uc2a4\ub97c \uac16\uace0 \uc788\ub294\ub370, \uadf8\uac8c \ubc14\ub85c Process\ub77c\ub294 \ud074\ub798\uc2a4\uc774\ub2e4. <br>             # \uc774 \uc608\uc81c\uc640 \uac19\uc774 \uc0ac\uc6a9\ud55c\ub2e4\uba74, &#8220;myfunction\uc774\ub77c\ub294 \ud568\uc218\uc5d0 s\ub77c\ub294 \ub370\uc774\ud130\ub97c \uc9d1\uc5b4\ub123\uace0 res\uc5d0 \uadf8 \uacb0\uacfc\ub97c \ub418\ub3cc\ub9ac\ub294&#8221; \ud504\ub85c\uc138\uc2a4\ub97c \uc815\uc758\ud55c\ub2e4. <br> while len(processes):<br>     p=processes.pop() # \ubbf8\ub9ac \uc900\ube44\ud574\ub454 \ud504\ub85c\uc138\uc2a4 \ubaa9\ub85d\uc5d0\uc11c \uac00\uc7a5 \ub05d\uc5d0 \uc788\ub294\uac78 \ud558\ub098 \uaebc\ub0b4\uc628\ub2e4. (\uc0ac\uc2e4 \uaebc\ub0b4\uc624\ub294 \uc21c\uc11c\ub294 \uc0c1\uad00\uc5c6\ub2e4.)<br>     p.start() # \ud504\ub85c\uc138\uc2a4\ub97c \uc2dc\uc791\ud55c\ub2e4.<br>     startedprocesses.append(p) # \uc2dc\uc791\ub41c \ud504\ub85c\uc138\uc2a4\ub97c startedprocesses\uc5d0 \ub123\uc5b4\ub454\ub2e4.<br> while len(startedprocesses):<br>     p=startedprocesses.pop() # startedprocesses\uc5d0\uc11c \ud504\ub85c\uc138\uc2a4\ub97c \ud558\ub098 \uaebc\ub0b4\uc628\ub2e4.<br>     p.join() # join \uba54\uc18c\ub4dc\ub294 \ud574\ub2f9 \ud504\ub85c\uc138\uc2a4\uac00 \ub05d\ub0a0 \ub54c\uae4c\uc9c0 \ud30c\uc774\uc36c\uc774 \uae30\ub2e4\ub9ac\ub3c4\ub85d \uc2dc\ud0a8\ub2e4. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud30c\uc774\uc36c\uc744 \uc774\uc6a9\ud574\uc11c \uba40\ud2f0\ud504\ub85c\uc138\uc2a4\ub97c \ub3cc\ub9ac\ub294 \uc608\uc81c import multiprocessing as mp # \uba40\ud2f0\ud504\ub85c\uc138\uc2f1\uc744 \ud558\uae30 \uc704\ud574 \ubaa8\ub4c8\uc744 \uac16\uace0 \uc628\ub2e4. def myfunction(a, b): # \uba40\ud2f0\ud504\ub85c\uc138\uc2f1\uc5d0 \uc0ac\uc6a9\ud560 \ud568\uc218 \uc608\uc81c. b=a*3 return master=mp.Manager() # \uc5ec\uae30\uc11c \uba40\ud2f0\ud504\ub85c\uc138\uc2f1 \ub9c8\uc2a4\ud130 \ub9e4\ub2c8\uc800\ub97c \uc815\uc758\ud55c\ub2e4. processes=[] # \ud504\ub85c\uc138\uc2a4\ub97c \ubbf8\ub9ac \uc900\ube44\uc2dc\ucf1c \ub458 \ub9ac\uc2a4\ud2b8. startedprocesses=[] # \uc2dc\uc791\ub41c \ud504\ub85c\uc138\uc2a4\ub97c \ub123\uc5b4\ub458 \ub9ac\uc2a4\ud2b8. res=master.dict({}) # \ud504\ub85c\uc138\uc2a4\uc758 \uc2e4\ud589 \uacb0\uacfc\ub97c \ub123\uc5b4\ub458 \ub9ac\uc2a4\ud2b8. \ub9c8\uc2a4\ud130 \ub9e4\ub2c8\uc800\uc5d0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-11913","post","type-post","status-publish","format-standard","hentry","category-diary"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8o6gA-369","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/11913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11913"}],"version-history":[{"count":3,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/11913\/revisions"}],"predecessor-version":[{"id":11916,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/11913\/revisions\/11916"}],"wp:attachment":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11913"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}