{"id":61625,"date":"2025-04-29T12:42:21","date_gmt":"2025-04-29T04:42:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/61625\/"},"modified":"2025-04-29T12:42:21","modified_gmt":"2025-04-29T04:42:21","slug":"%e5%9c%a8linux%e4%b8%8a%e4%bd%bf%e7%94%a8openmp%e8%bf%9b%e8%a1%8c%e5%b9%b6%e8%a1%8c%e7%bc%96%e7%a8%8b%e7%9a%84%e9%85%8d%e7%bd%ae%e6%96%b9%e6%b3%95-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/61625\/","title":{"rendered":"\u5728Linux\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5"},"content":{"rendered":"<p>\u5728\u4e0a\u4f7f\u7528openmp\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5<\/p>\n<p>OpenMP\uff08Open Multi-Processing\uff09\u662f\u4e00\u79cd\u652f\u6301\u5171\u4eab\u5185\u5b58\u5e76\u884c\u7f16\u7a0b\u7684\u6807\u51c6\u3002\u5b83\u80fd\u591f\u5728\u591a\u4e2a\u5904\u7406\u5668\u6838\u5fc3\u4e2d\u5b9e\u73b0\u5e76\u884c\u8fd0\u7b97\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n<ol>\n<li>\u5b89\u88c5OpenMP\u652f\u6301\u5e93<br \/>\u5728Linux\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u786e\u4fddOpenMP\u652f\u6301\u5e93\u5df2\u7ecf\u5b89\u88c5\u3002\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b89\u88c5OpenMP\u652f\u6301\u5e93\uff1a<\/li>\n<\/ol>\n<pre>sudo apt-get install libomp-dev<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>\u914d\u7f6e\u7f16\u8bd1\u5668<br \/>\u5728\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e4b\u524d\uff0c\u9700\u8981\u5728\u7f16\u8bd1\u5668\u4e2d\u542f\u7528OpenMP\u652f\u6301\u3002\u5927\u90e8\u5206Linux\u53d1\u884c\u7248\u9ed8\u8ba4\u4f7f\u7528GCC\u4f5c\u4e3a\u7f16\u8bd1\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u6765\u914d\u7f6eGCC\u7f16\u8bd1\u5668\u7684OpenMP\u652f\u6301\uff1a<\/li>\n<\/ol>\n<p>\uff081\uff09\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6253\u5f00GCC\u7f16\u8bd1\u5668\u7684\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre>sudo nano \/etc\/environment<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\uff082\uff09\u5728\u6253\u5f00\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>OMP_NUM_THREADS=&lt;n&gt;&lt;\/n&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c \u4ee3\u8868\u53ef\u7528\u4e8e\u5e76\u884c\u8ba1\u7b97\u7684\u7ebf\u7a0b\u6570\u3002\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a\u5408\u9002\u7684\u6570\u503c\u3002 <\/p>\n<p>\uff083\uff09\u4fdd\u5b58\u5e76\u9000\u51fa\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b<br \/>\u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e86\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528OpenMP\u5bf9\u4e00\u4e2afor\u5faa\u73af\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff1a<\/li>\n<\/ol>\n<pre>#include &lt;stdio.h&gt;\n#include &lt;omp.h&gt;\n\nint main() {\n    \/\/ \u8bbe\u7f6e\u5e76\u884c\u533a\u57df\n    #pragma omp parallel\n    {\n        \/\/ \u83b7\u53d6\u7ebf\u7a0b\u7f16\u53f7\n        int tid = omp_get_thread_num();\n        \/\/ \u83b7\u53d6\u7ebf\u7a0b\u603b\u6570\n        int num_threads = omp_get_num_threads();\n        \n        printf(\"Hello from thread %d of %d\n\", tid, num_threads);\n    }\n    \n    return 0;\n}&lt;\/omp.h&gt;&lt;\/stdio.h&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528omp_get_thread_num()\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684\u7f16\u53f7\uff0c\u4f7f\u7528omp_get_num_threads()\u51fd\u6570\u83b7\u53d6\u603b\u7684\u7ebf\u7a0b\u6570\u3002\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230\u4e0d\u540c\u7ebf\u7a0b\u7684\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<ol>\n<li>\u7f16\u8bd1\u548c\u8fd0\u884cOpenMP\u7a0b\u5e8f<br \/>\u7f16\u8bd1OpenMP\u7a0b\u5e8f\u9700\u8981\u4f7f\u7528-fopenmp\u53c2\u6570\uff0c\u4ee5\u544a\u77e5\u7f16\u8bd1\u5668\u542f\u7528OpenMP\u652f\u6301\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u7f16\u8bd1\u4e0a\u8ff0\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n<pre>gcc -fopenmp omp_example.c -o omp_example<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u7f16\u8bd1\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd0\u884c\u751f\u6210\u7684\u53ef\u6267\u884c\u6587\u4ef6\uff1a<\/p>\n<pre>.\/omp_example<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd0\u884c\u7ed3\u679c\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u4e0d\u540c\u7ebf\u7a0b\u7684\u8f93\u51fa\u4fe1\u606f\u3002<\/p>\n<ol>\n<li>\u5e76\u884c\u7f16\u7a0b\u7684\u6ce8\u610f\u4e8b\u9879<br \/>\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/li>\n<\/ol>\n<p>\uff081\uff09\u5e76\u884c\u533a\u57df\uff1a\u4f7f\u7528#pragma omp parallel\u6307\u4ee4\u6765\u5b9a\u4e49\u5e76\u884c\u533a\u57df\u3002<\/p>\n<p>\uff082\uff09\u7ebf\u7a0b\u7f16\u53f7\uff1a\u4f7f\u7528omp_get_thread_num()\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684\u7f16\u53f7\u3002<\/p>\n<p>\uff083\uff09\u7ebf\u7a0b\u603b\u6570\uff1a\u4f7f\u7528omp_get_num_threads()\u51fd\u6570\u83b7\u53d6\u603b\u7684\u7ebf\u7a0b\u6570\u3002<\/p>\n<p>\uff084\uff09\u6570\u636e\u5171\u4eab\uff1a\u53ef\u4ee5\u4f7f\u7528private\u548cshared\u7b49\u5173\u952e\u5b57\u6765\u58f0\u660e\u53d8\u91cf\u7684\u5171\u4eab\u72b6\u6001\u3002<\/p>\n<p>\uff085\uff09\u540c\u6b65\u673a\u5236\uff1a\u53ef\u4ee5\u4f7f\u7528#pragma omp barrier\u6307\u4ee4\u6765\u5b9e\u73b0\u7ebf\u7a0b\u7684\u540c\u6b65\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u914d\u7f6e\u548c\u6ce8\u610f\u4e8b\u9879\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Linux\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u3002\u4f7f\u7528OpenMP\u80fd\u591f\u5145\u5206\u5229\u7528\u591a\u6838\u5904\u7406\u5668\u7684\u6027\u80fd\uff0c\u52a0\u901f\u7a0b\u5e8f\u7684\u8fd0\u884c\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u6b63\u5728\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u5b66\u4e60\u548c\u5e94\u7528\u7684\u8bfb\u8005\u63d0\u4f9b\u4e00\u4e9b\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5728Linux\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4e0a\u4f7f\u7528openmp\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5 OpenMP\uff08Open Multi-Processing\uff09\u662f\u4e00\u79cd\u652f\u6301\u5171\u4eab\u5185\u5b58\u5e76\u884c\u7f16\u7a0b\u7684\u6807\u51c6\u3002\u5b83\u80fd\u591f\u5728\u591a\u4e2a\u5904\u7406\u5668\u6838\u5fc3\u4e2d\u5b9e\u73b0\u5e76\u884c\u8fd0\u7b97\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u7684\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8be6\u7ec6\u8bf4\u660e\u3002 \u5b89\u88c5OpenMP\u652f\u6301\u5e93\u5728Linux\u4e0a\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u786e\u4fddOpenMP\u652f\u6301\u5e93\u5df2\u7ecf\u5b89\u88c5\u3002\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b89\u88c5OpenMP\u652f\u6301\u5e93\uff1a sudo apt-get install libomp-dev \u767b\u5f55\u540e\u590d\u5236 \u914d\u7f6e\u7f16\u8bd1\u5668\u5728\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e4b\u524d\uff0c\u9700\u8981\u5728\u7f16\u8bd1\u5668\u4e2d\u542f\u7528OpenMP\u652f\u6301\u3002\u5927\u90e8\u5206Linux\u53d1\u884c\u7248\u9ed8\u8ba4\u4f7f\u7528GCC\u4f5c\u4e3a\u7f16\u8bd1\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u6765\u914d\u7f6eGCC\u7f16\u8bd1\u5668\u7684OpenMP\u652f\u6301\uff1a \uff081\uff09\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6253\u5f00GCC\u7f16\u8bd1\u5668\u7684\u914d\u7f6e\u6587\u4ef6\uff1a sudo nano \/etc\/environment \u767b\u5f55\u540e\u590d\u5236 \uff082\uff09\u5728\u6253\u5f00\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a OMP_NUM_THREADS=&lt;n&gt;&lt;\/n&gt; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c \u4ee3\u8868\u53ef\u7528\u4e8e\u5e76\u884c\u8ba1\u7b97\u7684\u7ebf\u7a0b\u6570\u3002\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a\u5408\u9002\u7684\u6570\u503c\u3002 \uff083\uff09\u4fdd\u5b58\u5e76\u9000\u51fa\u914d\u7f6e\u6587\u4ef6\u3002 \u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528OpenMP\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u4e86\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528OpenMP\u5bf9\u4e00\u4e2afor\u5faa\u73af\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff1a #include &lt;stdio.h&gt; #include &lt;omp.h&gt; int main() { \/\/ \u8bbe\u7f6e\u5e76\u884c\u533a\u57df #pragma omp parallel { \/\/ \u83b7\u53d6\u7ebf\u7a0b\u7f16\u53f7 int tid = omp_get_thread_num(); \/\/ \u83b7\u53d6\u7ebf\u7a0b\u603b\u6570 int num_threads = omp_get_num_threads(); printf(&#8220;Hello from thread %d of %d &#8220;, tid, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-61625","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=61625"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61625\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=61625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=61625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=61625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}