{"id":405,"date":"2022-07-07T14:36:06","date_gmt":"2022-07-07T06:36:06","guid":{"rendered":"http:\/\/purplepoolobservatory.com\/?p=405"},"modified":"2022-07-07T14:36:06","modified_gmt":"2022-07-07T06:36:06","slug":"openmp%e4%b8%ad%e7%9a%84%e5%8a%a8%e6%80%81%e6%95%b0%e7%bb%84%e7%a7%81%e6%9c%89%e5%8c%96","status":"publish","type":"post","link":"https:\/\/purplepoolobservatory.com\/?p=405","title":{"rendered":"openMP\u4e2d\u7684\u52a8\u6001\u6570\u7ec4\u79c1\u6709\u5316"},"content":{"rendered":"\n<p class=\"is-style-plain\">\u6709\u4e00\u4e2a\u9700\u6c42\uff0c\u9700\u8981\u5bf9for\u5faa\u73af\u4e2d\u521b\u5efa\u7684\u52a8\u6001\u6570\u7ec4\u8fdb\u884c\u64cd\u4f5c\uff0c\u8bb0\u5f55\u4e00\u4e0b\u5386\u7a0b\uff1a<\/p>\n\n\n\n<p>\u6700\u5f00\u59cb\u5728\u51fd\u6570\u5f00\u5934\u5b9a\u4e49\u4e86\u5faa\u73af\u53d8\u91cfi\u548c\u52a8\u6001\u6570\u7ec4trace\uff0c\u5e76\u7d27\u63a5\u7740\u7528malloc\u5bf9trace\u5206\u914d\u7a7a\u95f4\uff0c\u5728for\u5faa\u73af\u7684\u524d\u4e00\u884c\u7528#pragma omp for private(i)\u80fd\u7f16\u8bd1\u6210\u529f\uff0c\u4f46\u7ed3\u679c\u9519\u8bef\u3002\u5206\u6790\u539f\u56e0\u662f\u56e0\u4e3a\u6bcf\u6b21\u5faa\u73af\u90fd\u5171\u4eab\u4e86trace\uff0c\u5bfc\u81f4\u8ba1\u7b97\u9519\u8bef\uff1b<\/p>\n\n\n\n<p>\u7136\u540e\u5c06for\u524d\u5b9a\u4e49\u6539\u4e3a#pragma omp for private(i,trace)\uff0c\u7f16\u8bd1\u51fa\u73b0\u6bb5\u9519\u8bef\uff1b<\/p>\n\n\n\n<p><a href=\"https:\/\/www.coder.work\/article\/1555476\">https:\/\/www.coder.work\/article\/1564167<\/a>\u7ed9\u51fa\u4e86\u89e3\u51b3\u95ee\u9898\u7684\u6b63\u786e\u65b9\u6cd5\uff1a\u5148\u7528omp\u5b9a\u4e49parallel\u5757\uff0c\u7136\u540e\u52a8\u6001\u5206\u914d\u5185\u5b58\uff0c\u518d\u7528omp\u5f00\u542ffor\u5faa\u73af\uff0c\u7ed3\u675ffor\u5faa\u73af\u540e\u91ca\u653e\u5185\u5b58\uff0c\u5e76\u7ed3\u675fparallel\u5757\u3002\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#pragma omp parallel num_threads(40) private(i,trace)\n{ \/\/ parallel \u5757\u662f\u9700\u8981\u5927\u62ec\u53f7\u7684\n    trace=(float *)malloc(sizeof(float)*sz);\n    # pragma omp for \n    for(i=0;i&lt;len;i++)\n    {\n        trace=xxxxxxx;\n        .......\n    }\n    free(trace);\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6709\u4e00\u4e2a\u9700\u6c42\uff0c\u9700\u8981\u5bf9for\u5faa\u73af\u4e2d\u521b\u5efa\u7684\u52a8\u6001\u6570\u7ec4\u8fdb\u884c\u64cd\u4f5c\uff0c\u8bb0\u5f55\u4e00\u4e0b\u5386\u7a0b\uff1a \u6700\u5f00\u59cb\u5728\u51fd\u6570\u5f00\u5934\u5b9a\u4e49\u4e86\u5faa\u73af\u53d8\u91cfi\u548c\u52a8\u6001\u6570 &hellip; <a href=\"https:\/\/purplepoolobservatory.com\/?p=405\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201copenMP\u4e2d\u7684\u52a8\u6001\u6570\u7ec4\u79c1\u6709\u5316\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-405","post","type-post","status-publish","format-gallery","hentry","category-technology","post_format-post-format-gallery"],"_links":{"self":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/405","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=405"}],"version-history":[{"count":1,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/405\/revisions"}],"predecessor-version":[{"id":406,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/405\/revisions\/406"}],"wp:attachment":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}