{"id":1497,"date":"2011-10-19T11:39:15","date_gmt":"2011-10-19T02:39:15","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=1497"},"modified":"2017-01-31T19:45:32","modified_gmt":"2017-01-31T10:45:32","slug":"openmp-%ec%9d%b4%ed%95%b4%ea%b0%80-%ec%95%8a%eb%90%98%eb%8a%94-%ec%8a%a4%eb%a0%88%eb%93%9c-%ed%9d%90%eb%a6%84","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=1497","title":{"rendered":"[OpenMP] \uc774\ud574\uac00 \uc54a\ub418\ub294 \uc2a4\ub808\ub4dc \ud750\ub984"},"content":{"rendered":"<p><pre>#include \"stdafx.h\"\r\n#include \r\n#include \r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    int a = 1;\r\n#pragma omp parallel\r\n    {\r\n#pragma omp sections firstprivate(a) lastprivate(a)\r\n        {\r\n#pragma omp section\r\n            {\r\n                Sleep(1000);\r\n                printf(\"section 1: a \ucd08\uae30\uac12 = %d\\n\", a);\r\n                a = 2;\r\n                printf(\"section 1: a \uc218\uc815\uac12 = %d\\n\", a);\r\n            }\r\n#pragma omp section\r\n            {\r\n                printf(\"section 2: a \ucd08\uae30\uac12 = %d\\n\", a);\r\n                a = 3;\r\n                printf(\"section 2: a \uc218\uc815\uac12 = %d\\n\", a);\r\n            }\r\n        }\r\n    }\r\n\r\n    printf(\"a \ucd5c\uc885\uac12 = %d\\n\", a);\r\n\r\n    return 0;\r\n}<\/pre>\n<p>\uc774 \ucf54\ub4dc\ub294 \uc2a4\ub808\ub4dc\ub97c 2\uac1c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc989 section \uc9c0\uc2dc\uc5b4\ub97c \ud1b5\ud574 13~18\ubc88 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 \uc2a4\ub808\ub4dc \ud558\ub098\uc640 20~24\ubc88 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 \uc2a4\ub808\ub4dc \ud558\ub098\uc785\ub2c8\ub2e4. 10\ubc88 \ucf54\ub4dc\uc5d0\uc11c lastprivate(a)\ub77c\ub294 \ubcf4\uc870 \uc9c0\uc2dc\uc5b4\ub97c \ud1b5\ud574 2\uac1c\uc758 \uc2a4\ub808\ub4dc\uc5d0\uc11c \uc5f0\uc0b0\ud55c \uacb0\uacfc a\uac00 \ubcf5\uc0ac\ub429\ub2c8\ub2e4. 14\ubc88 \ucf54\ub4dc\uc5d0 Sleep \ud568\uc218\ub97c \ud638\ucd9c\ud568\uc73c\ub85c\uc368 \ub450\uac1c\uc758 \uc2a4\ub808\ub4dc \uc911 a\uc5d0 2\ub97c \ud560\ub2f9\ud55c \uc2a4\ub808\ub4dc\uac00 \uac00\uc7a5 \ub9c8\uc9c0\ub9c9\uc5d0 \ub05d\ub098\ub3c4\ub85d \ud588\uc2b5\ub2c8\ub2e4. a\uc5d0 2\ub97c \ud560\ub2f9\ud55c \uc2a4\ub808\ub4dc\uac00 \ub9c8\uc9c0\ub9c9\uc5d0 \uc885\ub8cc\ub418\ub2c8.. \uc774 2\uac1c\uc758 \uc2a4\ub808\ub4dc\uac00 \ub05d\ub098\uba74 a \uac12\uc740 \ud56d\uc0c1 2\uac00 \ub420\uac70\ub77c \uc608\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/1\/1201455214.png\" class=\"aligncenter\" width=\"220\" height=\"106\" alt=\"\uc0ac\uc6a9\uc790 \uc0bd\uc785 \uc774\ubbf8\uc9c0\" \/><br \/>\uadfc\ub370.. \ubcf4\ub294 \ubc14\uc640 \uac19\uc774 a\uc758 \ucd5c\uc885\uac12\uc774 3\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4.. \u3161O\u3161;; \uc2e4\ud589 \ud750\ub984\uc744 \ubd10\ub3c4 \uac00\uc7a5 \uba3c\uc800 a \uc218\uc815\uac12\uc73c\ub85c 3\uc744 \ud560\ub2f9\ud558\uace0 \ub2e4\uc74c \uc2e4\ud589\uc73c\ub85c a \uc218\uc815\uac12\uc73c\ub85c 2\ub97c \ud560\ub2f9\ud558\ub294 \uc21c\uc11c\uc785\ub2c8\ub2e4. \uc2e4\ud589 \uc21c\uc11c\ub294 \uc608\uc0c1\uacfc \uac19\uc740\ub370.. \uacb0\uacfc\ub294 \ubc18\ub300\uc785\ub2c8\ub2e4.. \u3161O\u3161;; \uc544\uc9c1 OpenMP\ub97c \ud559\uc2b5\ud558\ub294 \ub2e8\uacc4\uc778\uc9c0\ub77c.. \uc774\ud574\uac00 \ub5a8\uc5b4\uc838\uc11c \uadf8\ub7f0 \uac83\uc778\uc9c0.. \uc544\ub2c8\uba74 OpenMP\uc758 BUG\uc778\uc9c0&#8230; \ubaa8\ub97c \uc77c\uc785\ub2c8\ub2e4.. \ub204\uad6c \uc544\uc2dc\ub294 \ubd84 \ucf54\uce6d \ubd80\ud0c1\ub4dc\ub9bd\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>#include &#8220;stdafx.h&#8221; #include #include int _tmain(int argc, _TCHAR* argv[]) { int a = 1; #pragma omp parallel { #pragma omp sections firstprivate(a) lastprivate(a) { #pragma omp section { Sleep(1000); printf(&#8220;section 1: a \ucd08\uae30\uac12 = %d\\n&#8221;, a); a = 2; printf(&#8220;section 1: a \uc218\uc815\uac12 = %d\\n&#8221;, a); } #pragma omp section { printf(&#8220;section 2: a \ucd08\uae30\uac12 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=1497\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;[OpenMP] \uc774\ud574\uac00 \uc54a\ub418\ub294 \uc2a4\ub808\ub4dc \ud750\ub984&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117,8],"tags":[],"class_list":["post-1497","post","type-post","status-publish","format-standard","hentry","category-cpp","category-programming"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1497"}],"version-history":[{"count":3,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1497\/revisions"}],"predecessor-version":[{"id":13567,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1497\/revisions\/13567"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1497"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}