{"id":1812,"date":"2023-04-27T21:06:39","date_gmt":"2023-04-27T12:06:39","guid":{"rendered":"https:\/\/edu.ujhb.org\/?p=1812"},"modified":"2023-04-27T21:06:39","modified_gmt":"2023-04-27T12:06:39","slug":"openacc%e5%85%a5%e9%97%a8%ef%bc%88%e4%b8%ad%e6%96%87%e7%89%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/edu.ujhb.org\/?p=1812","title":{"rendered":"OpenAcc\u5165\u95e8\uff08\u4e2d\u6587\u7248\uff09"},"content":{"rendered":"\n<p>\u6211\u662f\u8981\u505aIT\u6559\u7a0b\u7684\u89c6\u9891\uff0c\u4f60\u80fd\u5426\u6839\u636e\u7f51\u7ad9\u7684\u5185\u5bb9\uff0c\u4e3a\u6211\u5b89\u6392\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\u3002\u6211\u4eec\u5148\u4eceOpenAcc\u6559\u7a0b\u5f00\u59cb\uff0c\u4f60\u5148\u4e3a\u6211\u5217\u51fa\u8981\u8bb2\u89e3\u7684\u5185\u5bb9\u4e00\u89c8\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\u53ef\u4ee5\uff01\u4ee5\u4e0b\u662f\u6839\u636eOpenAcc\u7f51\u7ad9\u5185\u5bb9\u4e3a\u60a8\u5b89\u6392\u7684\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\u5927\u7eb2\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u5927\u7eb2\u5236\u4f5c\u76f8\u5e94\u7684IT\u6559\u7a0b\u89c6\u9891\u3002<\/p>\n\n\n\n<p>OpenAcc\u89c6\u9891\u6559\u7a0b\u5927\u7eb2\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f15\u8a00\n<ul class=\"wp-block-list\">\n<li>OpenAcc\u7b80\u4ecb<\/li>\n\n\n\n<li>\u4e3a\u4ec0\u4e48\u9009\u62e9OpenAcc<\/li>\n\n\n\n<li>OpenAcc\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u5bf9\u6bd4<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>OpenAcc\u57fa\u7840\n<ul class=\"wp-block-list\">\n<li>OpenAcc\u7f16\u7a0b\u6a21\u578b<\/li>\n\n\n\n<li>\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c<\/li>\n\n\n\n<li>\u7f16\u8bd1\u5668\u6307\u4ee4\uff08\u6307\u4ee4\u8bed\u6cd5\u548c\u4f4d\u7f6e\uff09<\/li>\n\n\n\n<li>\u4e3b\u8981OpenAcc\u6307\u4ee4\uff08\u5982\uff1aparallel, kernels, loop, data\u7b49\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5982\u4f55\u4f7f\u7528OpenAcc\u6307\u4ee4\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528OpenAcc\u7684\u6b65\u9aa4<\/li>\n\n\n\n<li>\u57fa\u672c\u6307\u4ee4\u793a\u4f8b<\/li>\n\n\n\n<li>\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5<\/li>\n\n\n\n<li>\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6570\u636e\u7ba1\u7406\n<ul class=\"wp-block-list\">\n<li>OpenAcc\u6570\u636e\u7ba1\u7406\u7b56\u7565<\/li>\n\n\n\n<li>\u6570\u636e\u5b50\u53e5\uff08\u5982\uff1acopy, copyin, copyout, create, present\u7b49\uff09<\/li>\n\n\n\n<li>\u6570\u636e\u751f\u547d\u5468\u671f<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u5982\u4f55\u4f18\u5316\u6570\u636e\u4f20\u8f93<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5faa\u73af\u4f18\u5316\n<ul class=\"wp-block-list\">\n<li>\u5faa\u73af\u6307\u4ee4\uff08\u5982\uff1acollapse, gang, worker, vector\u7b49\uff09<\/li>\n\n\n\n<li>\u5faa\u73af\u5d4c\u5957<\/li>\n\n\n\n<li>\u4f9d\u8d56\u6027\u5206\u6790\u548c\u5faa\u73af\u8c03\u5ea6<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u5982\u4f55\u4f18\u5316\u5faa\u73af\u6027\u80fd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>OpenAcc\u8c03\u8bd5\u4e0e\u6027\u80fd\u5206\u6790\n<ul class=\"wp-block-list\">\n<li>\u5982\u4f55\u8c03\u8bd5OpenAcc\u4ee3\u7801<\/li>\n\n\n\n<li>\u6027\u80fd\u5206\u6790\u5de5\u5177<\/li>\n\n\n\n<li>\u6027\u80fd\u8c03\u4f18\u7b56\u7565<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\u5b9e\u8df5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6848\u4f8b\u5206\u6790\u4e0e\u5b9e\u8df5\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u540c\u9886\u57df\u7684OpenAcc\u5e94\u7528\u6848\u4f8b<\/li>\n\n\n\n<li>\u5982\u4f55\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u8f6c\u6362\u4e3aOpenAcc\u4ee3\u7801<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1a\u5b9e\u9645\u95ee\u9898\u7684OpenAcc\u89e3\u51b3\u65b9\u6848<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7ed3\u8bba\u4e0e\u672a\u6765\u53d1\u5c55\n<ul class=\"wp-block-list\">\n<li>OpenAcc\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u7684\u5f71\u54cd<\/li>\n\n\n\n<li>OpenAcc\u7684\u5c40\u9650\u6027<\/li>\n\n\n\n<li>OpenAcc\u7684\u672a\u6765\u53d1\u5c55\u65b9\u5411<\/li>\n\n\n\n<li>\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u6574\u5408<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e2a\u5927\u7eb2\u5e94\u8be5\u6db5\u76d6\u4e86OpenAcc\u7684\u4e3b\u8981\u5185\u5bb9\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u548c\u76ee\u6807\u53d7\u4f17\u8c03\u6574\u8fd9\u4e2a\u5927\u7eb2\u3002\u5e0c\u671b\u8fd9\u80fd\u5e2e\u52a9\u60a8\u5236\u4f5c\u51fa\u9ad8\u8d28\u91cf\u7684IT\u6559\u7a0b\u89c6\u9891\uff01<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u7b80\u4ecb<\/p>\n\n\n\n<p>The previous model used in this conversation is unavailable. We&#8217;ve switched you to the latest default model<\/p>\n\n\n\n<p>OpenAcc\u662f\u4e00\u79cd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u7528\u4e8e\u5728GPU\u548c\u5176\u4ed6\u52a0\u901f\u5668\u4e0a\u5e76\u884c\u6267\u884c\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\u3002\u5b83\u662f\u7531OpenACC\u6807\u51c6\u7ec4\u7ec7\u5f00\u53d1\u7684\uff0c\u5e76\u7531NVIDIA\u3001Cray\u3001AMD\u7b49\u516c\u53f8\u652f\u6301\u3002<\/p>\n\n\n\n<p>OpenAcc\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u6613\u7528\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u8f7b\u677e\u5730\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002OpenAcc\u57fa\u4e8e\u6307\u4ee4\u5f0f\u7f16\u7a0b\u6a21\u578b\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u73b0\u6709\u7684\u4ee3\u7801\u4e2d\u63d2\u5165OpenAcc\u6307\u4ee4\uff0c\u6307\u5b9a\u8981\u5e76\u884c\u6267\u884c\u7684\u4ee3\u7801\u5757\uff0c\u800c\u65e0\u9700\u8fdb\u884c\u5e95\u5c42\u7684\u786c\u4ef6\u548c\u5185\u5b58\u7ba1\u7406\u3002<\/p>\n\n\n\n<p>OpenAcc\u652f\u6301\u591a\u79cd\u8bed\u8a00\uff0c\u5305\u62ecFortran\u3001C\u548cC++\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528OpenAcc\u6307\u4ee4\u6765\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\uff0c\u4f8b\u5982\u4f7f\u7528parallel\u6307\u4ee4\u6765\u5c06\u4e00\u4e2a\u4ee3\u7801\u5757\u5e76\u884c\u6267\u884c\uff0c\u4f7f\u7528loop\u6307\u4ee4\u6765\u5e76\u884c\u6267\u884c\u5faa\u73af\u3002OpenAcc\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6570\u636e\u7ba1\u7406\u6307\u4ee4\uff0c\u4f8b\u5982copyin\u3001copyout\u548ccreate\uff0c\u7528\u4e8e\u7ba1\u7406\u5e76\u884c\u8ba1\u7b97\u4e2d\u7684\u6570\u636e\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d\u3002<\/p>\n\n\n\n<p>OpenAcc\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\uff0c\u4f8b\u5982\u6c14\u8c61\u5b66\u3001\u7269\u7406\u5b66\u3001\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u7b49\u9886\u57df\u7684\u79d1\u5b66\u8ba1\u7b97\u3002OpenAcc\u8fd8\u88ab\u5e94\u7528\u4e8e\u4eba\u5de5\u667a\u80fd\u3001\u673a\u5668\u5b66\u4e60\u7b49\u9886\u57df\u7684\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u4f8b\u5982\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u7684\u8bad\u7ec3\u548c\u63a8\u7406\u7b49\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenAcc\u662f\u4e00\u79cd\u5f00\u53d1\u9ad8\u6027\u80fd\u5e76\u884c\u5e94\u7528\u7a0b\u5e8f\u7684\u7b80\u5355\u6613\u7528\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u8f7b\u677e\u5730\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u5e76\u83b7\u5f97\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e3a\u4ec0\u4e48\u9009\u62e9OpenAcc<\/p>\n\n\n\n<p>\u9009\u62e9OpenAcc\u4f5c\u4e3a\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u539f\u56e0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b80\u5355\u6613\u7528\uff1aOpenAcc\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u6613\u7528\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u5e76\u83b7\u5f97\u66f4\u9ad8\u7684\u6027\u80fd\u3002\u4f7f\u7528OpenAcc\u6307\u4ee4\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u73b0\u6709\u7684\u4ee3\u7801\u4e2d\u63d2\u5165\u6307\u4ee4\uff0c\u6307\u5b9a\u8981\u5e76\u884c\u6267\u884c\u7684\u4ee3\u7801\u5757\uff0c\u800c\u65e0\u9700\u8fdb\u884c\u5e95\u5c42\u7684\u786c\u4ef6\u548c\u5185\u5b58\u7ba1\u7406\u3002<\/li>\n\n\n\n<li>\u8de8\u5e73\u53f0\uff1aOpenAcc\u652f\u6301\u591a\u79cd\u786c\u4ef6\u5e73\u53f0\uff0c\u5305\u62ecGPU\u548c\u5176\u4ed6\u52a0\u901f\u5668\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684\u4ee3\u7801\u5728\u4e0d\u540c\u7684\u786c\u4ef6\u5e73\u53f0\u4e0a\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u5e76\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u7075\u6d3b\u6027\uff1aOpenAcc\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\u548c\u9009\u9879\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u6027\u8fdb\u884c\u4f18\u5316\u3002\u4f8b\u5982\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u6765\u4f18\u5316\u5faa\u73af\u6027\u80fd\uff0c\u4f7f\u7528\u6570\u636e\u7ba1\u7406\u6307\u4ee4\u6765\u7ba1\u7406\u5185\u5b58\u548c\u6570\u636e\u4f20\u8f93\u7b49\u3002<\/li>\n\n\n\n<li>\u6807\u51c6\u5316\uff1aOpenAcc\u662f\u7531OpenACC\u6807\u51c6\u7ec4\u7ec7\u5f00\u53d1\u7684\uff0c\u5e76\u5f97\u5230\u4e86\u591a\u5bb6\u786c\u4ef6\u548c\u8f6f\u4ef6\u5382\u5546\u7684\u652f\u6301\u3002\u8fd9\u4f7f\u5f97OpenAcc\u6210\u4e3a\u4e00\u79cd\u6807\u51c6\u5316\u7684\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u5e73\u53f0\u4e0a\u8fdb\u884c\u79fb\u690d\u548c\u4f7f\u7528\u3002<\/li>\n\n\n\n<li>\u5e94\u7528\u5e7f\u6cdb\uff1aOpenAcc\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\uff0c\u4f8b\u5982\u6c14\u8c61\u5b66\u3001\u7269\u7406\u5b66\u3001\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u7b49\u9886\u57df\u7684\u79d1\u5b66\u8ba1\u7b97\u3002OpenAcc\u8fd8\u88ab\u5e94\u7528\u4e8e\u4eba\u5de5\u667a\u80fd\u3001\u673a\u5668\u5b66\u4e60\u7b49\u9886\u57df\u7684\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u4f8b\u5982\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u7684\u8bad\u7ec3\u548c\u63a8\u7406\u7b49\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528OpenAcc\u6765\u5f00\u53d1\u5404\u79cd\u7c7b\u578b\u7684\u9ad8\u6027\u80fd\u5e76\u884c\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0c\u9009\u62e9OpenAcc\u4f5c\u4e3a\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u4f7f\u5f00\u53d1\u4eba\u5458\u66f4\u8f7b\u677e\u5730\u5b9e\u73b0\u9ad8\u6027\u80fd\u5e76\u884c\u8ba1\u7b97\uff0c\u5177\u6709\u8de8\u5e73\u53f0\u3001\u7075\u6d3b\u6027\u3001\u6807\u51c6\u5316\u548c\u5e94\u7528\u5e7f\u6cdb\u7b49\u4f18\u70b9\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u5bf9\u6bd4<\/p>\n\n\n\n<p>OpenAcc\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u5bf9\u6bd4\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8fdb\u884c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b80\u5355\u6613\u7528\u6027\uff1a\u4e0eMPI\u548cOpenMP\u7b49\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u76f8\u6bd4\uff0cOpenAcc\u66f4\u52a0\u7b80\u5355\u6613\u7528\u3002OpenAcc\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u4f7f\u7528\u6307\u4ee4\u6765\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\uff0c\u800c\u4e0d\u9700\u8981\u8fdb\u884c\u5e95\u5c42\u7684\u5185\u5b58\u548c\u7ebf\u7a0b\u7ba1\u7406\u3002\u4e0eCUDA\u76f8\u6bd4\uff0cOpenAcc\u4e5f\u66f4\u52a0\u7b80\u5355\u6613\u7528\uff0c\u4e0d\u9700\u8981\u5f00\u53d1\u4eba\u5458\u624b\u52a8\u7ba1\u7406GPU\u5185\u5b58\u548c\u7ebf\u7a0b\u3002<\/li>\n\n\n\n<li>\u7075\u6d3b\u6027\uff1a\u4e0eCUDA\u548cOpenCL\u7b49\u5176\u4ed6\u4f4e\u7ea7\u522b\u7684\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u76f8\u6bd4\uff0cOpenAcc\u5177\u6709\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002OpenAcc\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\u548c\u9009\u9879\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u6027\u8fdb\u884c\u4f18\u5316\uff0c\u4f8b\u5982\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u6765\u4f18\u5316\u5faa\u73af\u6027\u80fd\uff0c\u4f7f\u7528\u6570\u636e\u7ba1\u7406\u6307\u4ee4\u6765\u7ba1\u7406\u5185\u5b58\u548c\u6570\u636e\u4f20\u8f93\u7b49\u3002<\/li>\n\n\n\n<li>\u8de8\u5e73\u53f0\u6027\uff1a\u4e0eCUDA\u548cOpenCL\u7b49\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u76f8\u6bd4\uff0cOpenAcc\u5177\u6709\u66f4\u597d\u7684\u8de8\u5e73\u53f0\u6027\u3002OpenAcc\u652f\u6301\u591a\u79cd\u786c\u4ef6\u5e73\u53f0\uff0c\u5305\u62ecGPU\u548c\u5176\u4ed6\u52a0\u901f\u5668\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684\u4ee3\u7801\u5728\u4e0d\u540c\u7684\u786c\u4ef6\u5e73\u53f0\u4e0a\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u5e76\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002\u800cCUDA\u548cOpenCL\u53ea\u80fd\u5728NVIDIA GPU\u548cAMD GPU\u4e0a\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>\u6027\u80fd\uff1a\u4e0eMPI\u548cOpenMP\u7b49\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u76f8\u6bd4\uff0cOpenAcc\u53ef\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002OpenAcc\u5728GPU\u4e0a\u6267\u884c\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\u65f6\uff0c\u901a\u5e38\u53ef\u4ee5\u83b7\u5f97\u66f4\u9ad8\u7684\u6027\u80fd\u3002\u4e0eCUDA\u76f8\u6bd4\uff0cOpenAcc\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u7684\u6027\u80fd\u53ef\u80fd\u4f1a\u7565\u4f4e\uff0c\u4f46\u662f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574OpenAcc\u6307\u4ee4\u6765\u4f18\u5316\u6027\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenAcc\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u76f8\u6bd4\uff0c\u5177\u6709\u66f4\u9ad8\u7684\u7b80\u5355\u6613\u7528\u6027\u3001\u7075\u6d3b\u6027\u3001\u8de8\u5e73\u53f0\u6027\u548c\u6027\u80fd\u7b49\u4f18\u70b9\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u6027\u548c\u786c\u4ef6\u5e73\u53f0\u7684\u7279\u70b9\uff0c\u9009\u62e9\u5408\u9002\u7684\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u7f16\u7a0b\u6a21\u578b<\/p>\n\n\n\n<p>OpenAcc\u7f16\u7a0b\u6a21\u578b\u662f\u4e00\u79cd\u6307\u4ee4\u5f0f\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002OpenAcc\u7f16\u7a0b\u6a21\u578b\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6982\u5ff5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c\uff1aOpenAcc\u7f16\u7a0b\u6a21\u578b\u652f\u6301\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c\u4e24\u79cd\u5e76\u884c\u65b9\u5f0f\u3002\u6570\u636e\u5e76\u884c\u662f\u6307\u5c06\u6570\u636e\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u540c\u65f6\u5904\u7406\u8fd9\u4e9b\u6570\u636e\u3002\u4efb\u52a1\u5e76\u884c\u662f\u6307\u5c06\u4e0d\u540c\u7684\u4efb\u52a1\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u540c\u65f6\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u3002<\/li>\n\n\n\n<li>\u7f16\u8bd1\u5668\u6307\u4ee4\uff1aOpenAcc\u7f16\u7a0b\u6a21\u578b\u4f7f\u7528\u6307\u4ee4\u6765\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002\u8fd9\u4e9b\u6307\u4ee4\u901a\u5e38\u7531\u7f16\u8bd1\u5668\u751f\u6210\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u73b0\u6709\u7684\u4ee3\u7801\u4e2d\u63d2\u5165\u8fd9\u4e9b\u6307\u4ee4\uff0c\u4ee5\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002OpenAcc\u6307\u4ee4\u901a\u5e38\u4f7f\u7528#pragma acc\u8bed\u6cd5\u8868\u793a\u3002<\/li>\n\n\n\n<li>\u4e3b\u8981OpenAcc\u6307\u4ee4\uff1aOpenAcc\u7f16\u7a0b\u6a21\u578b\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\uff0c\u7528\u4e8e\u6307\u5b9a\u4e0d\u540c\u7c7b\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u5176\u4e2d\u4e00\u4e9b\u4e3b\u8981\u6307\u4ee4\u5305\u62ec\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>parallel\uff1a\u5c06\u4e00\u4e2a\u4ee3\u7801\u5757\u5e76\u884c\u6267\u884c<\/li>\n\n\n\n<li>kernels\uff1a\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u591a\u4e2a\u4efb\u52a1<\/li>\n\n\n\n<li>loop\uff1a\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u5faa\u73af<\/li>\n\n\n\n<li>data\uff1a\u6307\u5b9a\u6570\u636e\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u7684\u5b58\u50a8\u65b9\u5f0f<\/li>\n\n\n\n<li>enter data\u548cexit data\uff1a\u7ba1\u7406\u6570\u636e\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5\uff1aOpenAcc\u6307\u4ee4\u901a\u5e38\u5305\u542b\u4e00\u4e9b\u53c2\u6570\u548c\u5b50\u53e5\uff0c\u7528\u4e8e\u6307\u5b9a\u6267\u884c\u65b9\u5f0f\u548c\u5176\u4ed6\u76f8\u5173\u4fe1\u606f\u3002\u4f8b\u5982\uff0cparallel\u6307\u4ee4\u53ef\u4ee5\u4f7f\u7528num_gangs\u3001num_workers\u548cvector_length\u7b49\u53c2\u6570\u6765\u6307\u5b9a\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002<\/li>\n\n\n\n<li>\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf\uff1aOpenAcc\u7f16\u7a0b\u6a21\u578b\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf\uff0c\u7528\u4e8e\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u6267\u884c\u65b9\u5f0f\u548c\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528acc_set_device_num()\u51fd\u6570\u6765\u8bbe\u7f6e\u4f7f\u7528\u7684\u5904\u7406\u5668\u7f16\u53f7\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenAcc\u7f16\u7a0b\u6a21\u578b\u662f\u4e00\u79cd\u7b80\u5355\u6613\u7528\u3001\u7075\u6d3b\u6027\u9ad8\u7684\u6307\u4ee4\u5f0f\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c<\/p>\n\n\n\n<p>\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c\u662f\u5e76\u884c\u8ba1\u7b97\u4e2d\u7684\u4e24\u79cd\u57fa\u672c\u5e76\u884c\u6a21\u5f0f\uff0c\u5b83\u4eec\u7684\u533a\u522b\u5728\u4e8e\u5e76\u884c\u8ba1\u7b97\u4e2d\u7684\u57fa\u672c\u5355\u4f4d\u662f\u4ec0\u4e48\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5e76\u884c<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u5e76\u884c\u662f\u5c06\u6570\u636e\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u540c\u65f6\u5904\u7406\u8fd9\u4e9b\u6570\u636e\u7684\u5e76\u884c\u6a21\u5f0f\u3002\u5728\u6570\u636e\u5e76\u884c\u4e2d\uff0c\u6bcf\u4e2a\u5904\u7406\u5668\u90fd\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u662f\u64cd\u4f5c\u7684\u8f93\u5165\u548c\u8f93\u51fa\u6570\u636e\u4e0d\u540c\u3002\u6570\u636e\u5e76\u884c\u53ef\u4ee5\u901a\u8fc7\u5c06\u6570\u636e\u5212\u5206\u4e3a\u5757\u6216\u5b50\u96c6\uff0c\u8ba9\u4e0d\u540c\u7684\u5904\u7406\u5668\u540c\u65f6\u5904\u7406\u8fd9\u4e9b\u6570\u636e\u5757\u6216\u5b50\u96c6\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5728\u77e9\u9635\u4e58\u6cd5\u4e2d\uff0c\u53ef\u4ee5\u5c06\u77e9\u9635\u5212\u5206\u4e3a\u591a\u4e2a\u5757\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5757\u5206\u914d\u7ed9\u4e0d\u540c\u7684\u5904\u7406\u5668\uff0c\u8ba9\u5b83\u4eec\u540c\u65f6\u6267\u884c\u76f8\u540c\u7684\u4e58\u6cd5\u64cd\u4f5c\uff0c\u6700\u7ec8\u5c06\u7ed3\u679c\u5408\u5e76\u5f97\u5230\u6700\u7ec8\u7684\u77e9\u9635\u4e58\u79ef\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u4efb\u52a1\u5e76\u884c<\/li>\n<\/ol>\n\n\n\n<p>\u4efb\u52a1\u5e76\u884c\u662f\u5c06\u4e0d\u540c\u7684\u4efb\u52a1\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u540c\u65f6\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u7684\u5e76\u884c\u6a21\u5f0f\u3002\u5728\u4efb\u52a1\u5e76\u884c\u4e2d\uff0c\u6bcf\u4e2a\u5904\u7406\u5668\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u662f\u64cd\u4f5c\u7684\u8f93\u5165\u548c\u8f93\u51fa\u6570\u636e\u76f8\u540c\u3002\u4efb\u52a1\u5e76\u884c\u53ef\u4ee5\u901a\u8fc7\u5c06\u4efb\u52a1\u5206\u914d\u7ed9\u4e0d\u540c\u7684\u5904\u7406\u5668\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5728\u56fe\u50cf\u5904\u7406\u4e2d\uff0c\u53ef\u4ee5\u5c06\u4e0d\u540c\u7684\u56fe\u50cf\u5904\u7406\u64cd\u4f5c\u5212\u5206\u4e3a\u591a\u4e2a\u4efb\u52a1\uff0c\u5e76\u5c06\u8fd9\u4e9b\u4efb\u52a1\u5206\u914d\u7ed9\u4e0d\u540c\u7684\u5904\u7406\u5668\uff0c\u8ba9\u5b83\u4eec\u540c\u65f6\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\uff0c\u6700\u7ec8\u5c06\u7ed3\u679c\u5408\u5e76\u5f97\u5230\u6700\u7ec8\u7684\u5904\u7406\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u6570\u636e\u5e76\u884c\u548c\u4efb\u52a1\u5e76\u884c\u662f\u5e76\u884c\u8ba1\u7b97\u4e2d\u7684\u4e24\u79cd\u57fa\u672c\u5e76\u884c\u6a21\u5f0f\uff0c\u5206\u522b\u901a\u8fc7\u5c06\u6570\u636e\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\u548c\u5c06\u4efb\u52a1\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u540c\u65f6\u6267\u884c\uff0c\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u70b9\u9009\u62e9\u5408\u9002\u7684\u5e76\u884c\u6a21\u5f0f\u6765\u5b9e\u73b0\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u7f16\u8bd1\u5668\u6307\u4ee4\uff08\u6307\u4ee4\u8bed\u6cd5\u548c\u4f4d\u7f6e\uff09<\/p>\n\n\n\n<p>\u7f16\u8bd1\u5668\u6307\u4ee4\u662f\u4e00\u79cd\u7528\u4e8e\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u7684\u6307\u4ee4\uff0c\u901a\u5e38\u7531\u7f16\u8bd1\u5668\u751f\u6210\u3002\u5728OpenACC\u7f16\u7a0b\u6a21\u578b\u4e2d\uff0c\u8fd9\u4e9b\u6307\u4ee4\u4f7f\u7528#pragma acc\u8bed\u6cd5\u8868\u793a\u3002<\/p>\n\n\n\n<p>\u6307\u4ee4\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<p>#pragma acc directive [clause[,clause] &#8230;] newline<\/p>\n\n\n\n<p>\u5176\u4e2d\uff0cdirective\u8868\u793a\u6307\u4ee4\u7c7b\u578b\uff0c\u4f8b\u5982parallel\u3001kernels\u3001loop\u7b49\uff1bclause\u8868\u793a\u6307\u4ee4\u7684\u53c2\u6570\u548c\u5b50\u53e5\uff0c\u7528\u4e8e\u6307\u5b9a\u6267\u884c\u65b9\u5f0f\u548c\u5176\u4ed6\u76f8\u5173\u4fe1\u606f\uff1bnewline\u8868\u793a\u65b0\u884c\u3002<\/p>\n\n\n\n<p>\u6307\u4ee4\u4f4d\u7f6e\uff1a<\/p>\n\n\n\n<p>OpenACC\u6307\u4ee4\u53ef\u4ee5\u63d2\u5165\u5230C\/C++\u6216Fortran\u4ee3\u7801\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0cOpenACC\u6307\u4ee4\u5e94\u8be5\u7d27\u63a5\u7740\u653e\u5728\u4ee3\u7801\u5757\u7684\u524d\u9762\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++)\n{\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528#pragma acc parallel loop\u6307\u4ee4\u6765\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\uff0c\u5e76\u5728for\u5faa\u73af\u4e4b\u524d\u63d2\u5165\u8fd9\u4e2a\u6307\u4ee4\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u53ef\u4ee5\u5728\u4ee3\u7801\u5757\u524d\u9762\u63d2\u5165OpenACC\u6307\u4ee4\u5916\uff0c\u8fd8\u53ef\u4ee5\u5728\u51fd\u6570\u524d\u9762\u6216\u6587\u4ef6\u5f00\u5934\u4f7f\u7528OpenACC\u6307\u4ee4\u6765\u6307\u5b9a\u6574\u4e2a\u6587\u4ef6\u6216\u51fd\u6570\u7684\u9ed8\u8ba4\u5e76\u884c\u6267\u884c\u65b9\u5f0f\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">csharpCopy code<code>#pragma acc data copyin(A[0:N], B[0:N]) copyout(C[0:N])\nvoid my_function()\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++)\n    {\n        \/\/ parallel code block\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528#pragma acc data\u6307\u4ee4\u6765\u6307\u5b9a\u9ed8\u8ba4\u7684\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\uff0c\u4f7f\u7528#pragma acc parallel loop\u6307\u4ee4\u6765\u6307\u5b9afor\u5faa\u73af\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002\u8fd9\u4e9b\u6307\u4ee4\u53ef\u4ee5\u5728\u51fd\u6570\u524d\u9762\u6216\u6587\u4ef6\u5f00\u5934\u63d2\u5165\uff0c\u4ee5\u6307\u5b9a\u6574\u4e2a\u6587\u4ef6\u6216\u51fd\u6570\u7684\u9ed8\u8ba4\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u7f16\u8bd1\u5668\u6307\u4ee4\u662f\u4e00\u79cd\u7528\u4e8e\u6307\u5b9a\u4ee3\u7801\u5757\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u7684\u6307\u4ee4\uff0c\u901a\u5e38\u7531\u7f16\u8bd1\u5668\u751f\u6210\uff0c\u4f7f\u7528#pragma acc\u8bed\u6cd5\u8868\u793a\u3002OpenACC\u6307\u4ee4\u53ef\u4ee5\u63d2\u5165\u5230\u4ee3\u7801\u5757\u524d\u9762\u3001\u51fd\u6570\u524d\u9762\u6216\u6587\u4ef6\u5f00\u5934\uff0c\u4ee5\u6307\u5b9a\u4ee3\u7801\u5757\u3001\u51fd\u6570\u6216\u6574\u4e2a\u6587\u4ef6\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e3b\u8981OpenAcc\u6307\u4ee4\uff08\u5982\uff1aparallel, kernels, loop, data\u7b49\uff09<\/p>\n\n\n\n<p>OpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\uff0c\u7528\u4e8e\u6307\u5b9a\u4e0d\u540c\u7c7b\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u5176\u4e2d\u4e00\u4e9b\u4e3b\u8981\u6307\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>#pragma acc parallel<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5c06\u4ee3\u7801\u5757\u5e76\u884c\u6267\u884c\u3002\u5b83\u901a\u5e38\u4e0efor\u5faa\u73af\u4e00\u8d77\u4f7f\u7528\uff0c\u6307\u5b9a\u5faa\u73af\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>#pragma acc kernels<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u591a\u4e2a\u4efb\u52a1\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u591a\u4e2afor\u5faa\u73af\u6216while\u5faa\u73af\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc kernels\n{\n    \/\/ task 1\n    for (int i = 0; i &lt; N; i++) {\n        \/\/ parallel code block\n    }\n\n    \/\/ task 2\n    for (int i = 0; i &lt; M; i++) {\n        \/\/ parallel code block\n    }\n\n    \/\/ ...\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>#pragma acc loop<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u5faa\u73af\u3002\u5b83\u901a\u5e38\u4e0efor\u5faa\u73af\u4e00\u8d77\u4f7f\u7528\uff0c\u6307\u5b9a\u5faa\u73af\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>for (int i = 0; i &lt; N; i++) {\n    #pragma acc loop\n    for (int j = 0; j &lt; M; j++) {\n        \/\/ parallel code block\n    }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>#pragma acc data<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u7684\u5b58\u50a8\u65b9\u5f0f\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u4ee5\u53ca\u5c06\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copyin(A[0:N], B[0:N]) copyout(C[0:N])\n{\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528#pragma acc data\u6307\u4ee4\u6307\u5b9a\u4e86\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\uff0c\u5e76\u5c06\u6570\u636eA\u3001B\u548cC\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u7136\u540e\u6267\u884c\u4ee3\u7801\u5757\uff0c\u5e76\u5c06\u6570\u636eC\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>#pragma acc enter data \u548c #pragma acc exit data<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u6307\u4ee4\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d\u3002#pragma acc enter data\u7528\u4e8e\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u5206\u914d\u5185\u5b58\u5e76\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c#pragma acc exit data\u7528\u4e8e\u5c06\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u5e76\u91ca\u653e\u52a0\u901f\u5668\u5185\u5b58\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>int *A = (int *)malloc(N * sizeof(int));\nint *B = (int *)malloc(N * sizeof(int));\nint *C = (int *)malloc(N * sizeof(int));\n\n#pragma acc enter data create(A[0:N], B[0:N]) copyin(C[0:N])\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    A[i] = i;\n    B[i] = i + 1;\n}\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    C[i] = A[i] + B[i];\n}\n\n#pragma acc exit data copyout(C[0:N]) delete(A[0:N], B[0:N])\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528#pragma acc enter data\u6307\u4ee4\u5206\u914d\u4e86\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5c06\u6570\u636eC\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u7136\u540e\u4f7f\u7528#pragma acc parallel loop\u6307\u4ee4\u5c06\u4e24\u4e2afor\u5faa\u73af\u5e76\u884c\u5316\u6267\u884c\uff0c\u5e76\u5c06\u8ba1\u7b97\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002\u6700\u540e\uff0c\u4f7f\u7528#pragma acc exit data\u6307\u4ee4\u5c06\u6570\u636eC\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u91ca\u653e\u52a0\u901f\u5668\u5185\u5b58\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\uff0c\u7528\u4e8e\u6307\u5b9a\u4e0d\u540c\u7c7b\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u5176\u4e2d\u4e00\u4e9b\u4e3b\u8981\u6307\u4ee4\u5305\u62ecparallel\u3001kernels\u3001loop\u3001data\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f7f\u7528OpenAcc\u7684\u6b65\u9aa4<\/p>\n\n\n\n<p>\u4f7f\u7528OpenACC\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9009\u62e9\u5408\u9002\u7684\u7f16\u8bd1\u5668\u548c\u52a0\u901f\u5668<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\u9700\u8981\u9009\u62e9\u652f\u6301OpenACC\u7684\u7f16\u8bd1\u5668\uff0c\u4f8b\u5982PGI\u3001GCC\u3001Clang\u7b49\u3002\u53e6\u5916\uff0c\u9700\u8981\u9009\u62e9\u4e00\u4e2a\u652f\u6301OpenACC\u7684\u52a0\u901f\u5668\uff0c\u4f8b\u5982NVIDIA GPU\u3001AMD GPU\u7b49\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8bc6\u522b\u53ef\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757<\/li>\n<\/ol>\n\n\n\n<p>\u5176\u6b21\uff0c\u9700\u8981\u8bc6\u522b\u53ef\u4ee5\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757\u3002\u8fd9\u4e9b\u4ee3\u7801\u5757\u901a\u5e38\u662f\u5177\u6709\u5faa\u73af\u7ed3\u6784\u7684\u4ee3\u7801\u5757\u3002\u53ef\u4ee5\u4f7f\u7528\u7f16\u8bd1\u5668\u63d0\u4f9b\u7684\u5206\u6790\u5de5\u5177\u6765\u8bc6\u522b\u8fd9\u4e9b\u4ee3\u7801\u5757\uff0c\u4f8b\u5982PGI\u7f16\u8bd1\u5668\u63d0\u4f9b\u7684pgcc -Minfo\u9009\u9879\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u63d2\u5165OpenACC\u6307\u4ee4<\/li>\n<\/ol>\n\n\n\n<p>\u7136\u540e\uff0c\u5728\u53ef\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757\u524d\u9762\u63d2\u5165OpenACC\u6307\u4ee4\u6765\u6307\u5b9a\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u548c\u5176\u4ed6\u76f8\u5173\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528#pragma acc parallel loop\u6307\u4ee4\u6307\u5b9afor\u5faa\u73af\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u5206\u914d\u5185\u5b58\u5e76\u4f20\u8f93\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u9700\u8981\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u5206\u914d\u5185\u5b58\uff0c\u5e76\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u53ef\u4ee5\u4f7f\u7528#pragma acc data\u6307\u4ee4\u6765\u6307\u5b9a\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>\u6267\u884c\u5e76\u884c\u8ba1\u7b97<\/li>\n<\/ol>\n\n\n\n<p>\u7136\u540e\uff0c\u6267\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u4f7f\u7528OpenACC\u6307\u4ee4\u6765\u6307\u5b9a\u8ba1\u7b97\u7684\u5e76\u884c\u6267\u884c\u65b9\u5f0f\u3002\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7f16\u8bd1\u5668\u63d0\u4f9b\u7684\u5206\u6790\u5de5\u5177\u6765\u68c0\u67e5\u5e76\u884c\u8ba1\u7b97\u7684\u6027\u80fd\u548c\u6b63\u786e\u6027\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>\u5c06\u7ed3\u679c\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58<\/li>\n<\/ol>\n\n\n\n<p>\u6700\u540e\uff0c\u5c06\u8ba1\u7b97\u7ed3\u679c\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u91ca\u653e\u52a0\u901f\u5668\u5185\u5b58\u3002\u53ef\u4ee5\u4f7f\u7528#pragma acc exit data\u6307\u4ee4\u6765\u6307\u5b9a\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528OpenACC\u8fdb\u884c\u5e76\u884c\u7f16\u7a0b\u901a\u5e38\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u7f16\u8bd1\u5668\u548c\u52a0\u901f\u5668\uff0c\u8bc6\u522b\u53ef\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757\uff0c\u63d2\u5165OpenACC\u6307\u4ee4\uff0c\u5206\u914d\u5185\u5b58\u5e76\u4f20\u8f93\u6570\u636e\uff0c\u6267\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u5c06\u7ed3\u679c\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u8fd9\u4e9b\u6b65\u9aa4\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u57fa\u672c\u6307\u4ee4\u793a\u4f8b<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9bOpenACC\u57fa\u672c\u6307\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>#pragma acc parallel<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5c06\u4ee3\u7801\u5757\u5e76\u884c\u6267\u884c\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u5c06\u4e00\u4e2afor\u5faa\u73af\u5e76\u884c\u5316\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel\nfor (int i = 0; i &lt; N; i++) {\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>#pragma acc kernels<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u591a\u4e2a\u4efb\u52a1\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u4f7f\u7528kernels\u6307\u4ee4\u5728\u4e24\u4e2afor\u5faa\u73af\u4e2d\u6267\u884c\u4e24\u4e2a\u4e0d\u540c\u7684\u4efb\u52a1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc kernels\n{\n    \/\/ task 1\n    for (int i = 0; i &lt; N; i++) {\n        \/\/ parallel code block\n    }\n\n    \/\/ task 2\n    for (int i = 0; i &lt; M; i++) {\n        \/\/ parallel code block\n    }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>#pragma acc loop<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u5728\u591a\u4e2a\u5904\u7406\u5668\u4e0a\u5e76\u884c\u6267\u884c\u5faa\u73af\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u4f7f\u7528loop\u6307\u4ee4\u5e76\u884c\u5316for\u5faa\u73af\u4e2d\u7684\u4ee3\u7801\u5757\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>for (int i = 0; i &lt; N; i++) {\n    #pragma acc loop\n    for (int j = 0; j &lt; M; j++) {\n        \/\/ parallel code block\n    }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>#pragma acc data<\/li>\n<\/ol>\n\n\n\n<p>\u8be5\u6307\u4ee4\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u7684\u5b58\u50a8\u65b9\u5f0f\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u4f7f\u7528data\u6307\u4ee4\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5728\u52a0\u901f\u5668\u4e0a\u6267\u884c\u8ba1\u7b97\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cCopy code<code>int *A = (int *)malloc(N * sizeof(int));\nint *B = (int *)malloc(N * sizeof(int));\nint *C = (int *)malloc(N * sizeof(int));\n\n#pragma acc data copyin(A[0:N], B[0:N]) copyout(C[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u6307\u5b9a\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\uff0c\u5e76\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u7136\u540e\u4f7f\u7528parallel loop\u6307\u4ee4\u5728\u52a0\u901f\u5668\u4e0a\u5e76\u884c\u6267\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>#pragma acc enter data \u548c #pragma acc exit data<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u6307\u4ee4\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u4f7f\u7528enter data\u6307\u4ee4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u5206\u914d\u5185\u5b58\u5e76\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u4f7f\u7528exit data\u6307\u4ee4\u5c06\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u5e76\u91ca\u653e\u52a0\u901f\u5668\u5185\u5b58\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>int *A = (int *)malloc(N * sizeof(int));\nint *B = (int *)malloc(N * sizeof(int));\nint *C = (int *)malloc(N * sizeof(int));\n\n#pragma acc enter data create(A[0:N], B[0:N]) copyin(C[0:N])\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    A[i] = i;\n    B[i] = i + 1;\n}\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    C[i] =\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>A[i] + B[i]; }<\/p>\n\n\n\n<p>#pragma acc exit data copyout(C[0:N]) delete(A[0:N], B[0:N])<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">wasmCopy code<code>\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528enter data\u6307\u4ee4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u5206\u914d\u5185\u5b58\u5e76\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u4f7f\u7528parallel loop\u6307\u4ee4\u5728\u52a0\u901f\u5668\u4e0a\u5e76\u884c\u6267\u884c\u4e24\u4e2afor\u5faa\u73af\uff0c\u5e76\u5c06\u8ba1\u7b97\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002\u6700\u540e\uff0c\u4f7f\u7528exit data\u6307\u4ee4\u5c06\u6570\u636eC\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u91ca\u653e\u52a0\u901f\u5668\u5185\u5b58\u3002\n\n\u603b\u4e4b\uff0cOpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6307\u4ee4\uff0c\u53ef\u4ee5\u7528\u4e8e\u6307\u5b9a\u4e0d\u540c\u7c7b\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7\u63d2\u5165OpenACC\u6307\u4ee4\u5e76\u4f7f\u7528\u7f16\u8bd1\u5668\u63d0\u4f9b\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u79fb\u690d\u5230\u5e76\u884c\u73af\u5883\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002\u4e0a\u9762\u7ed9\u51fa\u7684\u6307\u4ee4\u793a\u4f8b\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u4e86\u89e3\u5982\u4f55\u4f7f\u7528OpenACC\u6307\u4ee4\u6765\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5<\/p>\n\n\n\n<p>OpenACC\u6307\u4ee4\u901a\u5e38\u5305\u542b\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5\u3002\u6307\u4ee4\u53c2\u6570\u7528\u4e8e\u6307\u5b9a\u6307\u4ee4\u7684\u884c\u4e3a\u6216\u5c5e\u6027\uff0c\u800c\u5b50\u53e5\u7528\u4e8e\u8fdb\u4e00\u6b65\u6307\u5b9a\u6307\u4ee4\u7684\u884c\u4e3a\u6216\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6307\u4ee4\u53c2\u6570<\/li>\n<\/ol>\n\n\n\n<p>\uff081\uff09async\uff1a\u6307\u5b9a\u6307\u4ee4\u5728\u5f02\u6b65\u6a21\u5f0f\u4e0b\u6267\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel async\nfor (int i = 0; i &lt; N; i++) {\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<p>\uff082\uff09wait\uff1a\u6307\u5b9a\u6307\u4ee4\u5728\u7b49\u5f85\u5176\u4ed6\u6307\u4ee4\u5b8c\u6210\u540e\u6267\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc data wait(A[0:N], B[0:N])\n{\n    #pragma acc kernels\n    {\n        \/\/ task 1\n        for (int i = 0; i &lt; N; i++) {\n            \/\/ parallel code block\n        }\n    }\n\n    #pragma acc kernels\n    {\n        \/\/ task 2\n        for (int i = 0; i &lt; M; i++) {\n            \/\/ parallel code block\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\uff083\uff09gang\u3001worker\u3001vector\uff1a\u6307\u5b9a\u6307\u4ee4\u5728Gang-Worker-Vector\u6a21\u5f0f\u4e0b\u6267\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel gang worker vector\nfor (int i = 0; i &lt; N; i++) {\n    \/\/ parallel code block\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\uff081\uff09copyin\u3001copyout\u3001create\u3001delete\uff1a\u6307\u5b9a\u6570\u636e\u7684\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copyin(A[0:N], B[0:N]) copyout(C[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\uff082\uff09collapse\uff1a\u6307\u5b9a\u5faa\u73af\u5d4c\u5957\u7684\u6298\u53e0\u7ea7\u522b\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>#pragma acc parallel loop collapse(2)\nfor (int i = 0; i &lt; N; i++) {\n    for (int j = 0; j &lt; M; j++) {\n        \/\/ parallel code block\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\uff083\uff09private\u3001firstprivate\u3001reduction\uff1a\u6307\u5b9a\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u548c\u8ba1\u7b97\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>float sum = 0.0;\n\n#pragma acc parallel loop reduction(+:sum)\nfor (int i = 0; i &lt; N; i++) {\n    sum += A[i];\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528reduction\u5b50\u53e5\u5c06sum\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u9650\u5b9a\u4e3a\u5e76\u884c\u5faa\u73af\uff0c\u4f7f\u7528\u52a0\u6cd5\u8ba1\u7b97sum\u7684\u503c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenACC\u6307\u4ee4\u901a\u5e38\u5305\u542b\u6307\u4ee4\u53c2\u6570\u548c\u5b50\u53e5\uff0c\u7528\u4e8e\u6307\u5b9a\u6307\u4ee4\u7684\u884c\u4e3a\u6216\u5c5e\u6027\u3002\u8fd9\u4e9b\u53c2\u6570\u548c\u5b50\u53e5\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u884c\u4e3a\u548c\u6027\u80fd\u3002\u5e38\u7528\u7684\u6307\u4ee4\u53c2\u6570\u5305\u62ecasync\u3001wait\u3001gang\u3001worker\u3001vector\u7b49\uff0c\u5e38\u7528\u7684\u5b50\u53e5\u5305\u62eccopyin\u3001copyout\u3001create\u3001delete\u3001collapse\u3001private\u3001firstprivate\u3001reduction\u7b49\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf<\/p>\n\n\n\n<p>OpenACC\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf\uff0c\u7528\u4e8e\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u884c\u4e3a\u548c\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8fd0\u884c\u65f6\u51fd\u6570<\/li>\n<\/ol>\n\n\n\n<p>\uff081\uff09acc_get_num_devices\uff1a\u83b7\u53d6\u7cfb\u7edf\u4e2d\u7684\u52a0\u901f\u5668\u8bbe\u5907\u6570\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>int num_devices = acc_get_num_devices(acc_device_nvidia);\n<\/code><\/pre>\n\n\n\n<p>\uff082\uff09acc_set_device_num\uff1a\u8bbe\u7f6e\u5f53\u524d\u7ebf\u7a0b\u6240\u4f7f\u7528\u7684\u52a0\u901f\u5668\u8bbe\u5907\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>acc_set_device_num(device_num, acc_device_nvidia);\n<\/code><\/pre>\n\n\n\n<p>\uff083\uff09acc_malloc\uff1a\u5728\u52a0\u901f\u5668\u8bbe\u5907\u4e0a\u5206\u914d\u5185\u5b58\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cCopy code<code>int *A = (int *)acc_malloc(N * sizeof(int));\n<\/code><\/pre>\n\n\n\n<p>\uff084\uff09acc_memcpy_to_device\u3001acc_memcpy_from_device\uff1a\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u8bbe\u5907\u5185\u5b58\u6216\u4ece\u52a0\u901f\u5668\u8bbe\u5907\u5185\u5b58\u590d\u5236\u5230\u4e3b\u673a\u5185\u5b58\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cCopy code<code>acc_memcpy_to_device(A, h_A, N * sizeof(int));\n<\/code><\/pre>\n\n\n\n<p>\uff085\uff09acc_free\uff1a\u91ca\u653e\u52a0\u901f\u5668\u8bbe\u5907\u4e0a\u7684\u5185\u5b58\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>acc_free(A);\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u73af\u5883\u53d8\u91cf<\/li>\n<\/ol>\n\n\n\n<p>\uff081\uff09ACC_NUM_CORES\uff1a\u6307\u5b9a\u5e76\u884c\u8ba1\u7b97\u4f7f\u7528\u7684CPU\u6838\u5fc3\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>export ACC_NUM_CORES=8\n<\/code><\/pre>\n\n\n\n<p>\uff082\uff09ACC_GPU_DIRECTIVES\uff1a\u6307\u5b9a\u7f16\u8bd1\u5668\u662f\u5426\u5e94\u8be5\u751f\u6210GPU\u6307\u4ee4\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bashCopy code<code>export ACC_GPU_DIRECTIVES=enable\n<\/code><\/pre>\n\n\n\n<p>\uff083\uff09ACC_DEVICE_TYPE\uff1a\u6307\u5b9a\u9ed8\u8ba4\u7684\u52a0\u901f\u5668\u8bbe\u5907\u7c7b\u578b\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>export ACC_DEVICE_TYPE=nvidia\n<\/code><\/pre>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenACC\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8fd0\u884c\u65f6\u51fd\u6570\u548c\u73af\u5883\u53d8\u91cf\uff0c\u7528\u4e8e\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u884c\u4e3a\u548c\u6027\u80fd\u3002\u8fd9\u4e9b\u51fd\u6570\u548c\u53d8\u91cf\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u6267\u884c\u548c\u6027\u80fd\uff0c\u4f8b\u5982\u83b7\u53d6\u52a0\u901f\u5668\u8bbe\u5907\u6570\u91cf\u3001\u8bbe\u7f6e\u5f53\u524d\u7ebf\u7a0b\u6240\u4f7f\u7528\u7684\u52a0\u901f\u5668\u8bbe\u5907\u3001\u5728\u52a0\u901f\u5668\u8bbe\u5907\u4e0a\u5206\u914d\u5185\u5b58\u7b49\u3002\u5e38\u7528\u7684\u73af\u5883\u53d8\u91cf\u5305\u62ecACC_NUM_CORES\u3001ACC_GPU_DIRECTIVES\u3001ACC_DEVICE_TYPE\u7b49\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u6570\u636e\u7ba1\u7406\u7b56\u7565<\/p>\n\n\n\n<p>OpenACC\u6570\u636e\u7ba1\u7406\u7b56\u7565\u6307\u7684\u662f\u5982\u4f55\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u4f20\u8f93\u548c\u7ba1\u7406\u6570\u636e\u3002OpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u7ba1\u7406\u7b56\u7565\uff0c\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u70b9\u548c\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u81ea\u52a8\u6570\u636e\u7ba1\u7406<\/li>\n<\/ol>\n\n\n\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cOpenACC\u4f1a\u81ea\u52a8\u7ba1\u7406\u6570\u636e\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u3002\u7f16\u8bd1\u5668\u4f1a\u6839\u636e\u6307\u4ee4\u548c\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u81ea\u52a8\u5224\u65ad\u54ea\u4e9b\u6570\u636e\u9700\u8981\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u4f20\u8f93\uff0c\u5e76\u5c06\u6570\u636e\u5b58\u50a8\u5728\u9002\u5f53\u7684\u4f4d\u7f6e\u4e0a\u3002\u8fd9\u79cd\u81ea\u52a8\u7ba1\u7406\u7b56\u7565\u53ef\u4ee5\u7b80\u5316\u7f16\u7a0b\u8fc7\u7a0b\uff0c\u4f46\u53ef\u80fd\u4f1a\u964d\u4f4e\u6027\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u6570\u636e\u590d\u5236<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u590d\u5236\u662f\u4e00\u79cd\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\u3002\u53ef\u4ee5\u4f7f\u7528#pragma acc data\u6307\u4ee4\u548ccopyin\u3001copyout\u5b50\u53e5\u6765\u6307\u5b9a\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copyin(A[0:N], B[0:N]) copyout(C[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\u3001copyout\u5b50\u53e5\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5c06\u7ed3\u679c\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u6570\u636e\u521b\u5efa\u548c\u9500\u6bc1<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u521b\u5efa\u548c\u9500\u6bc1\u662f\u4e00\u79cd\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u52a8\u6001\u5206\u914d\u548c\u91ca\u653e\u6570\u636e\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\u3002\u53ef\u4ee5\u4f7f\u7528#pragma acc data\u6307\u4ee4\u548ccreate\u3001delete\u5b50\u53e5\u6765\u6307\u5b9a\u6570\u636e\u7684\u5185\u5b58\u5206\u914d\u548c\u91ca\u653e\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cCopy code<code>int *A = (int *)malloc(N * sizeof(int));\n\n#pragma acc data create(A[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        A[i] = i;\n    }\n}\n\n#pragma acc data delete(A[0:N])\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccreate\u5b50\u53e5\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u5206\u914d\u5185\u5b58\uff0c\u5e76\u4f7f\u7528parallel loop\u6307\u4ee4\u5728\u52a0\u901f\u5668\u4e0a\u5e76\u884c\u6267\u884c\u8ba1\u7b97\uff0c\u6700\u540e\u4f7f\u7528data\u6307\u4ee4\u548cdelete\u5b50\u53e5\u5c06\u5185\u5b58\u91ca\u653e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u6570\u636e\u6620\u5c04<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u636e\u6620\u5c04\u662f\u4e00\u79cd\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\u3002\u53ef\u4ee5\u4f7f\u7528#pragma acc enter data\u548cexit data\u6307\u4ee4\u6765\u6307\u5b9a\u6570\u636e\u7684\u4f20\u8f93\u548c\u5185\u5b58\u5206\u914d\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>int *A = (int *)malloc(N * sizeof(int));\nint *B = (int *)malloc(N * sizeof(int));\nint *C = (int *)malloc(N * sizeof(int));\n\n#pragma acc enter data create(A[0:N], B[0:N]) copyin(C[0:N])\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    A[i] = i;\n    B[i] = i + 1;\n}\n\n#pragma acc parallel loop\nfor (int i = 0; i &lt; N; i++) {\n    C[i] = A[i] + B[i];\n}\n\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>#pragma acc exit data copyout(C[0:N]) delete(A[0:N], B[0:N])<\/p>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528enter data\u6307\u4ee4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efaA\u548cB\u6570\u7ec4\uff0c\u5e76\u5c06C\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u5728\u5e76\u884c\u5faa\u73af\u4e2d\uff0c\u5bf9A\u548cB\u6570\u7ec4\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002\u6700\u540e\uff0c\u4f7f\u7528exit data\u6307\u4ee4\u5c06C\u6570\u7ec4\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u5220\u9664A\u548cB\u6570\u7ec4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u526f\u672c\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u7ba1\u7406\u7b56\u7565\uff0c\u5305\u62ec\u81ea\u52a8\u6570\u636e\u7ba1\u7406\u3001\u6570\u636e\u590d\u5236\u3001\u6570\u636e\u521b\u5efa\u548c\u9500\u6bc1\u3001\u6570\u636e\u6620\u5c04\u7b49\u3002\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u70b9\u548c\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\u6765\u4f18\u5316\u5e76\u884c\u8ba1\u7b97\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u5b50\u53e5\uff08\u5982\uff1acopy, copyin, copyout, create, present\u7b49\uff09<\/p>\n\n\n\n<p>OpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u636e\u5b50\u53e5\uff0c\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u7684\u4f20\u8f93\u548c\u5b58\u50a8\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6570\u636e\u5b50\u53e5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>copy\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>copy\u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u7684\u53cc\u5411\u4f20\u8f93\u3002\u6570\u636e\u5728\u6bcf\u6b21\u8fdb\u5165\u548c\u79bb\u5f00\u8ba1\u7b97\u65f6\u90fd\u4f1a\u88ab\u4f20\u8f93\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copy(A[0:N], B[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopy\u5b50\u53e5\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5728\u5e76\u884c\u5faa\u73af\u4e2d\u6267\u884c\u8ba1\u7b97\u3002\u6bcf\u6b21\u8fdb\u5165\u548c\u79bb\u5f00\u5e76\u884c\u5faa\u73af\u65f6\uff0cA\u548cB\u6570\u7ec4\u90fd\u4f1a\u5728\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u4f20\u8f93\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>copyin\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>copyin\u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u4f46\u5728\u8ba1\u7b97\u7ed3\u675f\u65f6\u4e0d\u5c06\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u8fd9\u79cd\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u9002\u7528\u4e8e\u53ea\u9700\u8bfb\u53d6\u4e3b\u673a\u6570\u636e\u7684\u8ba1\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copyin(A[0:N], B[0:N]) create(C[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\u5b50\u53e5\u5c06\u6570\u636eA\u548cB\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u540c\u65f6\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efaC\u6570\u7ec4\u3002\u5728\u5e76\u884c\u5faa\u73af\u4e2d\uff0c\u5bf9A\u548cB\u6570\u7ec4\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002\u5728\u8ba1\u7b97\u7ed3\u675f\u65f6\uff0cC\u6570\u7ec4\u4e0d\u4f1a\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>copyout\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>copyout\u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u4f46\u5728\u8ba1\u7b97\u5f00\u59cb\u65f6\u4e0d\u5c06\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u8fd9\u79cd\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\u9002\u7528\u4e8e\u53ea\u9700\u5199\u5165\u4e3b\u673a\u6570\u636e\u7684\u8ba1\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>int *C = (int *)malloc(N * sizeof(int));\n\n#pragma acc data create(A[0:N], B[0:N]) copyout(C[0:N])\n{\n    #pragma acc parallel loop\n    for (int i = 0; i &lt; N; i++) {\n        C[i] = A[i] + B[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccreate\u5b50\u53e5\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efaA\u548cB\u6570\u7ec4\uff0c\u4f7f\u7528copyout\u5b50\u53e5\u5c06\u6570\u636eC\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u5728\u5e76\u884c\u5faa\u73af\u4e2d\uff0c\u5bf9A\u548cB\u6570\u7ec4\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728C\u6570\u7ec4\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>create\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>create\u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u521b\u5efa\u65b9\u5f0f\u3002\u8fd9\u79cd\u65b9\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efa\u65b0\u6570\u636e\u7684\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6570\u636e\u751f\u547d\u5468\u671f<\/p>\n\n\n\n<p>OpenACC\u4e2d\u7684\u6570\u636e\u751f\u547d\u5468\u671f\u6307\u7684\u662f\u6570\u636e\u5728\u7a0b\u5e8f\u4e2d\u7684\u751f\u5b58\u5468\u671f\uff0c\u5373\u4ece\u6570\u636e\u7684\u521b\u5efa\u3001\u4f7f\u7528\u5230\u9500\u6bc1\u7684\u6574\u4e2a\u8fc7\u7a0b\u3002\u5728OpenACC\u4e2d\uff0c\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u53d7\u5230\u6570\u636e\u5b50\u53e5\u7684\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6570\u636e\u5b50\u53e5\u548c\u5bf9\u5e94\u7684\u6570\u636e\u751f\u547d\u5468\u671f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>copy\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5728copy\u5b50\u53e5\u4e2d\uff0c\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u56e0\u6b64\uff0c\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u4e0e\u7a0b\u5e8f\u7684\u6267\u884c\u65f6\u95f4\u76f8\u540c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>copyin\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5728copyin\u5b50\u53e5\u4e2d\uff0c\u6570\u636e\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\u4e0d\u4f1a\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u56e0\u6b64\uff0c\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u4ece\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u5f00\u59cb\uff0c\u5230\u7a0b\u5e8f\u7ed3\u675f\u65f6\u7ed3\u675f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>copyout\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5728copyout\u5b50\u53e5\u4e2d\uff0c\u6570\u636e\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u5728\u8ba1\u7b97\u5f00\u59cb\u524d\u4e0d\u4f1a\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u56e0\u6b64\uff0c\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u4ece\u7a0b\u5e8f\u5f00\u59cb\u65f6\u5f00\u59cb\uff0c\u5230\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u65f6\u7ed3\u675f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>create\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5728create\u5b50\u53e5\u4e2d\uff0c\u6570\u636e\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u88ab\u521b\u5efa\uff0c\u5e76\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\u88ab\u9500\u6bc1\u3002\u56e0\u6b64\uff0c\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u4ece\u521b\u5efa\u5f00\u59cb\uff0c\u5230\u7a0b\u5e8f\u7ed3\u675f\u6216\u4f7f\u7528delete\u5b50\u53e5\u624b\u52a8\u9500\u6bc1\u65f6\u7ed3\u675f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>present\u5b50\u53e5<\/li>\n<\/ol>\n\n\n\n<p>\u5728present\u5b50\u53e5\u4e2d\uff0c\u6570\u636e\u53ef\u80fd\u5b58\u5728\u4e8e\u4e3b\u673a\u5185\u5b58\u6216\u52a0\u901f\u5668\u5185\u5b58\u4e2d\uff0c\u53d6\u51b3\u4e8e\u7a0b\u5e8f\u6267\u884c\u7684\u9636\u6bb5\u3002\u5728\u7a0b\u5e8f\u5f00\u59cb\u65f6\uff0c\u6570\u636e\u5e94\u8be5\u5b58\u5728\u4e8e\u4e3b\u673a\u5185\u5b58\u4e2d\uff0c\u5e76\u4f7f\u7528present\u5b50\u53e5\u5c06\u6570\u636e\u4f20\u8f93\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u5728\u7a0b\u5e8f\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6570\u636e\u53ef\u80fd\u5b58\u5728\u4e8e\u4e3b\u673a\u5185\u5b58\u6216\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u3002\u5728\u7a0b\u5e8f\u7ed3\u675f\u65f6\uff0c\u6570\u636e\u5e94\u8be5\u88ab\u9500\u6bc1\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0c\u6570\u636e\u751f\u547d\u5468\u671f\u662fOpenACC\u4e2d\u91cd\u8981\u7684\u6982\u5ff5\u4e4b\u4e00\u3002\u4e0d\u540c\u7684\u6570\u636e\u5b50\u53e5\u63a7\u5236\u7740\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u3002\u719f\u6089\u8fd9\u4e9b\u6570\u636e\u5b50\u53e5\u53ca\u5176\u5bf9\u5e94\u7684\u751f\u547d\u5468\u671f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u4e2d\u7684\u6570\u636e\u7ba1\u7406\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u793a\u4f8b\uff1a\u5982\u4f55\u4f18\u5316\u6570\u636e\u4f20\u8f93<\/p>\n\n\n\n<p>\u6570\u636e\u4f20\u8f93\u662f\u5e76\u884c\u8ba1\u7b97\u4e2d\u5e38\u89c1\u7684\u6027\u80fd\u74f6\u9888\u4e4b\u4e00\u3002OpenACC\u63d0\u4f9b\u4e86\u591a\u79cd\u4f18\u5316\u6570\u636e\u4f20\u8f93\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u6570\u636e\u590d\u5236\u3001\u6570\u636e\u521b\u5efa\u548c\u9500\u6bc1\u3001\u6570\u636e\u6620\u5c04\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528OpenACC\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc data copyin(x[0:n], y[0:n]) copyout(y[0:n])\n    {\n        #pragma acc kernels\n        for (int i = 0; i &lt; n; i++) {\n            y[i] = a * x[i] + y[i];\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0csaxpy\u51fd\u6570\u8ba1\u7b97y = a * x + y\uff0c\u5176\u4e2da\u3001x\u3001y\u5747\u4e3a\u957f\u5ea6\u4e3an\u7684\u4e00\u7ef4\u6570\u7ec4\u3002\u4e3a\u4e86\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528copyout\u5b50\u53e5\u5c06y\u6570\u7ec4\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u5728\u5e76\u884c\u5faa\u73af\u4e2d\uff0c\u5bf9x\u548cy\u6570\u7ec4\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728y\u6570\u7ec4\u4e2d\u3002\u4f7f\u7528kernels\u6307\u4ee4\u5c06\u5e76\u884c\u5faa\u73af\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u4f20\u8f93\u6b21\u6570\u51cf\u5c11\u5230\u6700\u5c11\u3002\u5728\u6570\u636e\u91cf\u8f83\u5927\u65f6\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u53e6\u5916\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ba1\u7406\u7b56\u7565\uff0c\u5982\u6570\u636e\u521b\u5efa\u548c\u9500\u6bc1\u3001\u6570\u636e\u6620\u5c04\u7b49\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\u3002\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ba1\u7406\u7b56\u7565\u6765\u4f18\u5316\u5e76\u884c\u8ba1\u7b97\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u9664\u4e86\u4f7f\u7528\u6570\u636e\u5b50\u53e5\u548c\u6307\u4ee4\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6570\u636e\u6620\u5c04\u6765\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u6b21\u6570\u3002\u6570\u636e\u6620\u5c04\u6307\u7684\u662f\u5728\u4e3b\u673a\u548c\u52a0\u901f\u5668\u4e4b\u95f4\u5efa\u7acb\u4e00\u4e2a\u5171\u4eab\u5185\u5b58\u533a\u57df\uff0c\u4ece\u800c\u907f\u514d\u91cd\u590d\u7684\u6570\u636e\u4f20\u8f93\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u6570\u636e\u6620\u5c04\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc enter data create(x[0:n], y[0:n])\n    float *x_acc = x;\n    float *y_acc = y;\n    #pragma acc enter data copyin(x_acc[0:n], y_acc[0:n])\n    #pragma acc data present(x_acc[0:n], y_acc[0:n])\n    {\n        #pragma acc kernels\n        for (int i = 0; i &lt; n; i++) {\n            y_acc[i] = a * x_acc[i] + y_acc[i];\n        }\n    }\n    #pragma acc exit data copyout(y_acc[0:n])\n    #pragma acc exit data delete(x_acc[0:n], y_acc[0:n])\n    for (int i = 0; i &lt; n; i++) {\n        y[i] = y_acc[i];\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528enter data\u6307\u4ee4\u548ccreate\u5b50\u53e5\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efax\u548cy\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528copyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u4f7f\u7528present\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u6807\u8bb0\u4e3a\u5f53\u524d\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\uff0c\u5e76\u5728\u8ba1\u7b97\u7ed3\u675f\u65f6\u4f7f\u7528exit data\u6307\u4ee4\u548ccopyout\u5b50\u53e5\u5c06y\u6570\u7ec4\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u6700\u540e\uff0c\u4f7f\u7528delete\u5b50\u53e5\u5220\u9664x\u548cy\u6570\u7ec4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u526f\u672c\uff0c\u5e76\u4f7f\u7528\u5faa\u73af\u5c06y_acc\u6570\u7ec4\u7684\u7ed3\u679c\u590d\u5236\u56dey\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u6570\u636e\u6620\u5c04\uff0c\u53ef\u4ee5\u907f\u514d\u591a\u6b21\u6570\u636e\u4f20\u8f93\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002\u53e6\u5916\uff0c\u6570\u636e\u6620\u5c04\u8fd8\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u65f6\u7684\u6570\u636e\u590d\u5236\u6b21\u6570\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5ef6\u8fdf\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u5e76\u884c\u8ba1\u7b97\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u9664\u4e86\u4f7f\u7528\u6570\u636e\u6620\u5c04\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5f02\u6b65\u6570\u636e\u4f20\u8f93\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\u7684\u6027\u80fd\u3002\u5f02\u6b65\u6570\u636e\u4f20\u8f93\u6307\u7684\u662f\u5728\u8ba1\u7b97\u8fc7\u7a0b\u4e2d\uff0c\u540c\u65f6\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u548c\u8ba1\u7b97\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u5f02\u6b65\u6570\u636e\u4f20\u8f93\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    float *x_acc, *y_acc;\n    #pragma acc enter data create(x[0:n], y[0:n])\n    x_acc = (float *)acc_deviceptr(x);\n    y_acc = (float *)acc_deviceptr(y);\n    #pragma acc data copyin(x_acc[0:n], y_acc[0:n]) copyout(y_acc[0:n])\n    {\n        #pragma acc kernels async\n        for (int i = 0; i &lt; n; i++) {\n            y_acc[i] = a * x_acc[i] + y_acc[i];\n        }\n    }\n    #pragma acc exit data copyout(y_acc[0:n])\n    for (int i = 0; i &lt; n; i++) {\n        y[i] = y_acc[i];\n    }\n    #pragma acc exit data delete(x_acc[0:n], y_acc[0:n])\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528enter data\u6307\u4ee4\u548ccreate\u5b50\u53e5\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efax\u548cy\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528acc_deviceptr\u51fd\u6570\u5c06x\u548cy\u6570\u7ec4\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u6307\u9488\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u4f7f\u7528copyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528async\u5b50\u53e5\u5c06\u8ba1\u7b97\u64cd\u4f5c\u5f02\u6b65\u6267\u884c\u3002\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\uff0c\u4f7f\u7528exit data\u6307\u4ee4\u548ccopyout\u5b50\u53e5\u5c06y\u6570\u7ec4\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\u3002\u6700\u540e\uff0c\u4f7f\u7528delete\u5b50\u53e5\u5220\u9664x\u548cy\u6570\u7ec4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u526f\u672c\uff0c\u5e76\u4f7f\u7528\u5faa\u73af\u5c06y_acc\u6570\u7ec4\u7684\u7ed3\u679c\u590d\u5236\u56dey\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u5f02\u6b65\u6570\u636e\u4f20\u8f93\uff0c\u53ef\u4ee5\u540c\u65f6\u8fdb\u884c\u8ba1\u7b97\u548c\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u6570\u636e\u4f20\u8f93\u548c\u8ba1\u7b97\u64cd\u4f5c\u4e4b\u95f4\u7684\u7b49\u5f85\u65f6\u95f4\u3002\u8fd9\u79cd\u4f18\u5316\u65b9\u5f0f\u9002\u7528\u4e8e\u6570\u636e\u91cf\u8f83\u5927\u3001\u8ba1\u7b97\u65f6\u95f4\u8f83\u957f\u7684\u573a\u666f\u3002\u4f46\u662f\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fdb\u884c\u5f02\u6b65\u6570\u636e\u4f20\u8f93\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\u4e0d\u4f1a\u4e0e\u8ba1\u7b97\u64cd\u4f5c\u4ea7\u751f\u51b2\u7a81\uff0c\u4ece\u800c\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u9664\u4e86\u4f7f\u7528\u6570\u636e\u6620\u5c04\u548c\u5f02\u6b65\u6570\u636e\u4f20\u8f93\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6d41\u6765\u7ba1\u7406\u6570\u636e\u4f20\u8f93\u3002\u6d41\u6307\u7684\u662f\u4e00\u7ec4\u7531\u7528\u6237\u5b9a\u4e49\u7684\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u7528\u6765\u63a7\u5236\u8ba1\u7b97\u548c\u6570\u636e\u4f20\u8f93\u7684\u987a\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u6d41\u6765\u7ba1\u7406\u6570\u636e\u4f20\u8f93\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    float *x_acc, *y_acc;\n    acc_event_t event1, event2;\n    #pragma acc enter data create(x[0:n], y[0:n])\n    x_acc = (float *)acc_deviceptr(x);\n    y_acc = (float *)acc_deviceptr(y);\n    #pragma acc data copyin(x_acc[0:n], y_acc[0:n]) create(event1, event2)\n    {\n        #pragma acc kernels async(1) event(event1)\n        for (int i = 0; i &lt; n; i++) {\n            y_acc[i] = a * x_acc[i] + y_acc[i];\n        }\n        #pragma acc update self(y_acc[0:n]) async(2) event(event2)\n    }\n    #pragma acc wait(event2)\n    for (int i = 0; i &lt; n; i++) {\n        y[i] = y_acc[i];\n    }\n    #pragma acc exit data delete(x_acc[0:n], y_acc[0:n])\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528enter data\u6307\u4ee4\u548ccreate\u5b50\u53e5\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u521b\u5efax\u548cy\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528acc_deviceptr\u51fd\u6570\u5c06x\u548cy\u6570\u7ec4\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u6307\u9488\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u4f7f\u7528copyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528create\u5b50\u53e5\u521b\u5efa\u4e24\u4e2a\u4e8b\u4ef6\u3002\u5728\u5e76\u884c\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528async\u5b50\u53e5\u548cevent\u5b50\u53e5\u5206\u522b\u6307\u5b9a\u8ba1\u7b97\u64cd\u4f5c\u548c\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\u7684\u4e8b\u4ef6\u3002\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\uff0c\u4f7f\u7528update\u6307\u4ee4\u5c06y\u6570\u7ec4\u4ece\u52a0\u901f\u5668\u5185\u5b58\u590d\u5236\u56de\u4e3b\u673a\u5185\u5b58\uff0c\u5e76\u4f7f\u7528async\u5b50\u53e5\u548cevent\u5b50\u53e5\u5206\u522b\u6307\u5b9a\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\u548c\u4e8b\u4ef6\u3002\u5728\u8ba1\u7b97\u7ed3\u675f\u540e\uff0c\u4f7f\u7528wait\u6307\u4ee4\u7b49\u5f85\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\u7684\u5b8c\u6210\u3002\u6700\u540e\uff0c\u4f7f\u7528\u5faa\u73af\u5c06y_acc\u6570\u7ec4\u7684\u7ed3\u679c\u590d\u5236\u56dey\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528delete\u5b50\u53e5\u5220\u9664x\u548cy\u6570\u7ec4\u5728\u52a0\u901f\u5668\u5185\u5b58\u4e2d\u7684\u526f\u672c\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u6d41\u6765\u7ba1\u7406\u6570\u636e\u4f20\u8f93\uff0c\u53ef\u4ee5\u6709\u6548\u63a7\u5236\u8ba1\u7b97\u548c\u6570\u636e\u4f20\u8f93\u7684\u987a\u5e8f\uff0c\u907f\u514d\u56e0\u8ba1\u7b97\u548c\u6570\u636e\u4f20\u8f93\u4e4b\u95f4\u7684\u7ade\u4e89\u800c\u5bfc\u81f4\u7684\u6027\u80fd\u95ee\u9898\u3002\u8fd9\u79cd\u4f18\u5316\u65b9\u5f0f\u9002\u7528\u4e8e\u591a\u4e2a\u8ba1\u7b97\u548c\u6570\u636e\u4f20\u8f93\u64cd\u4f5c\u4e4b\u95f4\u5b58\u5728\u4f9d\u8d56\u5173\u7cfb\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5faa\u73af\u6307\u4ee4\uff08\u5982\uff1acollapse, gang, worker, vector\u7b49\uff09<\/p>\n\n\n\n<p>\u5728OpenACC\u4e2d\uff0c\u5faa\u73af\u6307\u4ee4\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5c06\u5faa\u73af\u7ed3\u6784\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u5faa\u73af\u6307\u4ee4\u7684\u89e3\u91ca\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>collapse\u6307\u4ee4\uff1a\u7528\u4e8e\u5c06\u591a\u5c42\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u4ee5\u4fbf\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5c06\u4e00\u4e2ai\u3001j\u3001k\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u53ef\u4ee5\u4f7f\u7528collapse(3)\u6307\u4ee4\u3002\u8be5\u6307\u4ee4\u4f1a\u5c06\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u5c55\u5f00\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u5e76\u5c06\u5355\u5c42\u5faa\u73af\u5206\u914d\u5230\u52a0\u901f\u5668\u4e0a\u7684\u591a\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>gang\u6307\u4ee4\uff1a\u7528\u4e8e\u5c06\u5faa\u73af\u5206\u914d\u7ed9\u591a\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u4f7f\u7528gang\u6307\u4ee4\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5faa\u73af\u5206\u914d\u7ed9\u591a\u4e2a\u7ebf\u7a0b\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u5904\u7406\u5faa\u73af\u4e2d\u7684\u4e00\u90e8\u5206\u5143\u7d20\u3002\u4f7f\u7528gang\u6307\u4ee4\u65f6\uff0c\u9700\u8981\u5c06\u5faa\u73af\u7684\u8fed\u4ee3\u6b21\u6570\u5e73\u5747\u5206\u914d\u7ed9\u6240\u6709\u7ebf\u7a0b\u3002<\/li>\n\n\n\n<li>worker\u6307\u4ee4\uff1a\u7528\u4e8e\u5c06\u6bcf\u4e2a\u7ebf\u7a0b\u8fdb\u4e00\u6b65\u5206\u4e3a\u591a\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\uff0c\u4ee5\u4fbf\u8fdb\u884c\u66f4\u7ec6\u7c92\u5ea6\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u4f7f\u7528worker\u6307\u4ee4\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u7ebf\u7a0b\u5206\u4e3a\u591a\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\uff0c\u6bcf\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\u5904\u7406\u5faa\u73af\u4e2d\u7684\u4e00\u90e8\u5206\u5143\u7d20\u3002\u4f7f\u7528worker\u6307\u4ee4\u65f6\uff0c\u9700\u8981\u6839\u636e\u786c\u4ef6\u8d44\u6e90\u7684\u9650\u5236\uff0c\u5c06\u5de5\u4f5c\u7ebf\u7a0b\u7684\u6570\u91cf\u63a7\u5236\u5728\u5408\u9002\u7684\u8303\u56f4\u5185\u3002<\/li>\n\n\n\n<li>vector\u6307\u4ee4\uff1a\u7528\u4e8e\u5c06\u5faa\u73af\u4e2d\u7684\u64cd\u4f5c\u5411\u91cf\u5316\uff0c\u4ee5\u4fbf\u66f4\u6709\u6548\u5730\u5229\u7528\u786c\u4ef6\u8d44\u6e90\u3002\u4f8b\u5982\uff0c\u4f7f\u7528vector\u6307\u4ee4\u53ef\u4ee5\u5c06\u5faa\u73af\u4e2d\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3aSIMD\u6307\u4ee4\uff0c\u4ee5\u4fbf\u540c\u65f6\u5904\u7406\u591a\u4e2a\u5143\u7d20\u3002\u4f7f\u7528vector\u6307\u4ee4\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u5faa\u73af\u4e2d\u7684\u64cd\u4f5c\u53ef\u4ee5\u8fdb\u884c\u5411\u91cf\u5316\uff0c\u4e14\u5411\u91cf\u5316\u64cd\u4f5c\u4e0d\u4f1a\u5f71\u54cd\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u53ef\u4ee5\u5c06\u5faa\u73af\u7ed3\u6784\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u4e0d\u540c\u7684\u5faa\u73af\u6307\u4ee4\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u573a\u666f\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5faa\u73af\u6307\u4ee4\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5faa\u73af\u5d4c\u5957<\/p>\n\n\n\n<p>\u5faa\u73af\u5d4c\u5957\u662f\u6307\u5728\u4e00\u4e2a\u5faa\u73af\u7ed3\u6784\u5185\u90e8\u5d4c\u5957\u53e6\u4e00\u4e2a\u5faa\u73af\u7ed3\u6784\uff0c\u5f62\u6210\u591a\u5c42\u5d4c\u5957\u5faa\u73af\u3002\u5728\u7f16\u7a0b\u4e2d\uff0c\u5faa\u73af\u5d4c\u5957\u662f\u5e38\u89c1\u7684\u7a0b\u5e8f\u7ed3\u6784\u4e4b\u4e00\uff0c\u5e38\u7528\u4e8e\u5904\u7406\u591a\u7ef4\u6570\u7ec4\u548c\u77e9\u9635\u7b49\u6570\u636e\u7ed3\u6784\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u5faa\u73af\u5d4c\u5957\u4e5f\u662f\u5e38\u89c1\u7684\u7a0b\u5e8f\u7ed3\u6784\u4e4b\u4e00\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u5c06\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u5faa\u73af\u5d4c\u5957\u7684\u5c42\u6570\u8d8a\u591a\uff0c\u7a0b\u5e8f\u7684\u8ba1\u7b97\u590d\u6742\u5ea6\u5c31\u8d8a\u9ad8\u3002\u5728\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u65f6\uff0c\u9700\u8981\u5c06\u5faa\u73af\u5d4c\u5957\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u7ed3\u6784\uff0c\u4ee5\u4fbf\u5c06\u8ba1\u7b97\u4efb\u52a1\u5206\u914d\u7ed9\u591a\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5c06\u5faa\u73af\u5d4c\u5957\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u9700\u8981\u4f7f\u7528\u591a\u4e2a\u5faa\u73af\u6307\u4ee4\uff0c\u4ee5\u4fbf\u5c06\u8ba1\u7b97\u4efb\u52a1\u5206\u914d\u7ed9\u4e0d\u540c\u7684\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5d4c\u5957\u5faa\u73af\u7ed3\u6784\uff0c\u7528\u4e8e\u8ba1\u7b97\u77e9\u9635\u4e58\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>for (int i = 0; i &lt; N; i++) {\n    for (int j = 0; j &lt; N; j++) {\n        for (int k = 0; k &lt; N; k++) {\n            C[i][j] += A[i][k] * B[k][j];\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u8be5\u5faa\u73af\u7ed3\u6784\u4e2d\u5305\u542b\u4e86\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\uff0c\u7528\u4e8e\u8ba1\u7b97\u77e9\u9635\u4e58\u6cd5\u3002\u5728\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528collapse\u6307\u4ee4\u5c06\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u7136\u540e\u4f7f\u7528gang\u3001worker\u548cvector\u7b49\u6307\u4ee4\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u7ed3\u6784\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u53ef\u4ee5\u5c06\u4e0a\u8ff0\u5faa\u73af\u7ed3\u6784\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u7ed3\u6784\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>#pragma acc data copyin(A[0:N][0:N], B[0:N][0:N]) copyout(C[0:N][0:N])\n#pragma acc kernels collapse(3) gang worker vector\n{\n    #pragma acc loop gang\n    for (int i = 0; i &lt; N; i++) {\n        #pragma acc loop worker\n        for (int j = 0; j &lt; N; j++) {\n            float temp = 0;\n            #pragma acc loop vector reduction(+:temp)\n            for (int k = 0; k &lt; N; k++) {\n                temp += A[i][k] * B[k][j];\n            }\n            C[i][j] = temp;\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\/copyout\u5b50\u53e5\u5c06\u77e9\u9635A\u3001B\u548cC\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528kernels\u6307\u4ee4\u548ccollapse\u5b50\u53e5\u5c06\u4e09\u5c42\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\u3002\u7136\u540e\uff0c\u4f7f\u7528gang\u3001worker\u548cvector\u7b49\u6307\u4ee4\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u7ed3\u6784\u3002\u5728\u8ba1<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u7b97\u7ed3\u675f\u540e\uff0c\u4f7f\u7528loop\u6307\u4ee4\u548cgang\u5b50\u53e5\u5c06\u7b2c\u4e00\u5c42\u5faa\u73af\u5206\u914d\u7ed9\u591a\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u4f7f\u7528loop\u6307\u4ee4\u548cworker\u5b50\u53e5\u5c06\u7b2c\u4e8c\u5c42\u5faa\u73af\u5206\u914d\u7ed9\u6bcf\u4e2a\u7ebf\u7a0b\u7684\u591a\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u4f7f\u7528loop\u6307\u4ee4\u548cvector\u5b50\u53e5\u5c06\u7b2c\u4e09\u5c42\u5faa\u73af\u5411\u91cf\u5316\uff0c\u4ee5\u4fbf\u540c\u65f6\u8ba1\u7b97\u591a\u4e2a\u5143\u7d20\u3002\u5728\u7b2c\u4e09\u5c42\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528reduction\u5b50\u53e5\u5c06\u4e34\u65f6\u53d8\u91cftemp\u7684\u503c\u8fdb\u884c\u7d2f\u52a0\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u5c06\u5faa\u73af\u5d4c\u5957\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u4f46\u4e5f\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u5faa\u73af\u6307\u4ee4\u7684\u4f7f\u7528\u9700\u8981\u8003\u8651\u786c\u4ef6\u8d44\u6e90\u7684\u9650\u5236\u548c\u5e76\u884c\u8ba1\u7b97\u7684\u6b63\u786e\u6027\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u3002\u6b64\u5916\uff0c\u5d4c\u5957\u5faa\u73af\u7ed3\u6784\u7684\u8f6c\u6362\u9700\u8981\u4fdd\u8bc1\u8ba1\u7b97\u7ed3\u679c\u7684\u6b63\u786e\u6027\uff0c\u9700\u8981\u8fdb\u884c\u9002\u5f53\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4f9d\u8d56\u6027\u5206\u6790\u548c\u5faa\u73af\u8c03\u5ea6<\/p>\n\n\n\n<p>\u4f9d\u8d56\u6027\u5206\u6790\u662f\u6307\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u5206\u6790\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u4ee5\u786e\u5b9a\u54ea\u4e9b\u4efb\u52a1\u53ef\u4ee5\u5e76\u884c\u6267\u884c\uff0c\u54ea\u4e9b\u4efb\u52a1\u9700\u8981\u6309\u987a\u5e8f\u6267\u884c\u3002\u5728\u5faa\u73af\u8ba1\u7b97\u4e2d\uff0c\u4f9d\u8d56\u6027\u5206\u6790\u901a\u5e38\u6d89\u53ca\u5230\u6570\u636e\u7684\u8bfb\u5199\u64cd\u4f5c\u548c\u8ba1\u7b97\u987a\u5e8f\u7b49\u65b9\u9762\u3002<\/p>\n\n\n\n<p>\u5faa\u73af\u8c03\u5ea6\u662f\u6307\u5728\u4f9d\u8d56\u6027\u5206\u6790\u7684\u57fa\u7840\u4e0a\uff0c\u5c06\u8ba1\u7b97\u4efb\u52a1\u5b89\u6392\u5230\u4e0d\u540c\u7684\u7ebf\u7a0b\u6216\u8ba1\u7b97\u5355\u5143\u4e2d\uff0c\u4ee5\u4fbf\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002\u5728\u5faa\u73af\u8ba1\u7b97\u4e2d\uff0c\u5faa\u73af\u8c03\u5ea6\u901a\u5e38\u9700\u8981\u8003\u8651\u8ba1\u7b97\u8d1f\u8f7d\u7684\u5e73\u8861\u3001\u7ebf\u7a0b\u95f4\u901a\u4fe1\u7684\u5f00\u9500\u548c\u6570\u636e\u5c40\u90e8\u6027\u7b49\u65b9\u9762\u3002<\/p>\n\n\n\n<p>\u4f9d\u8d56\u6027\u5206\u6790\u548c\u5faa\u73af\u8c03\u5ea6\u662f\u5e76\u884c\u8ba1\u7b97\u4e2d\u91cd\u8981\u7684\u4f18\u5316\u6280\u672f\u3002\u5728OpenACC\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f9d\u8d56\u5b50\u53e5\u548c\u5faa\u73af\u8c03\u5ea6\u5b50\u53e5\u6765\u63a7\u5236\u5e76\u884c\u8ba1\u7b97\u7684\u6267\u884c\u987a\u5e8f\u548c\u8ba1\u7b97\u8d1f\u8f7d\u7684\u5e73\u8861\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u4f9d\u8d56\u5b50\u53e5\u548c\u5faa\u73af\u8c03\u5ea6\u5b50\u53e5\u8fdb\u884c\u4f9d\u8d56\u6027\u5206\u6790\u548c\u5faa\u73af\u8c03\u5ea6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">csharpCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc data copyin(x[0:n], y[0:n])\n    {\n        #pragma acc parallel loop present(x[0:n], y[0:n]) \\\n            gang worker vector independent collapse(2) \\\n            schedule(dynamic, 32)\n        for (int i = 0; i &lt; n; i++) {\n            #pragma acc loop independent\n            for (int j = 0; j &lt; n; j++) {\n                y[i] += a * x[j];\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528parallel loop\u6307\u4ee4\u548cpresent\u5b50\u53e5\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u3002\u4f7f\u7528gang\u3001worker\u548cvector\u7b49\u6307\u4ee4\u5c06\u5faa\u73af\u8c03\u5ea6\u5230\u4e0d\u540c\u7684\u7ebf\u7a0b\u548c\u8ba1\u7b97\u5355\u5143\u4e2d\uff0c\u4f7f\u7528independent\u6307\u4ee4\u548cloop\u6307\u4ee4\u5c06\u4e24\u4e2a\u5faa\u73af\u7ed3\u6784\u5206\u5f00\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u4ee5\u907f\u514d\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u4f7f\u7528collapse\u6307\u4ee4\u5c06\u4e24\u4e2a\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u4ee5\u4fbf\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u3002\u4f7f\u7528schedule\u5b50\u53e5\u5c06\u5faa\u73af\u8c03\u5ea6\u4e3a\u52a8\u6001\u8c03\u5ea6\uff0c\u4ee5\u786e\u4fdd\u8ba1\u7b97\u8d1f\u8f7d\u7684\u5e73\u8861\u3002<\/p>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528\u4f9d\u8d56\u5b50\u53e5\u548c\u5faa\u73af\u8c03\u5ea6\u5b50\u53e5\u63a7\u5236\u4e86\u5e76\u884c\u8ba1\u7b97\u7684\u6267\u884c\u987a\u5e8f\u548c\u8ba1\u7b97\u8d1f\u8f7d\u7684\u5e73\u8861\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u793a\u4f8b\uff1a\u5982\u4f55\u4f18\u5316\u5faa\u73af\u6027\u80fd<\/p>\n\n\n\n<p>\u5728OpenACC\u4e2d\uff0c\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u53ef\u4ee5\u5c06\u5faa\u73af\u7ed3\u6784\u8f6c\u6362\u4e3a\u52a0\u901f\u5668\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u5faa\u73af\u6307\u4ee4\u4f18\u5316\u5faa\u73af\u6027\u80fd\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc data copyin(x[0:n], y[0:n])\n    {\n        #pragma acc parallel loop present(x[0:n], y[0:n]) \\\n            gang worker vector independent\n        for (int i = 0; i &lt; n; i++) {\n            y[i] += a * x[i];\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528data\u6307\u4ee4\u548ccopyin\u5b50\u53e5\u5c06x\u548cy\u6570\u7ec4\u4ece\u4e3b\u673a\u5185\u5b58\u590d\u5236\u5230\u52a0\u901f\u5668\u5185\u5b58\uff0c\u5e76\u4f7f\u7528parallel loop\u6307\u4ee4\u548cpresent\u5b50\u53e5\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\u3002\u4f7f\u7528gang\u3001worker\u548cvector\u7b49\u6307\u4ee4\u5c06\u5faa\u73af\u8c03\u5ea6\u5230\u4e0d\u540c\u7684\u7ebf\u7a0b\u548c\u8ba1\u7b97\u5355\u5143\u4e2d\uff0c\u4f7f\u7528independent\u6307\u4ee4\u5c06\u5faa\u73af\u7ed3\u6784\u4e2d\u7684\u8fed\u4ee3\u5f7c\u6b64\u72ec\u7acb\uff0c\u4ee5\u907f\u514d\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n\n\n\n<p>\u8be5\u793a\u4f8b\u4e2d\uff0c\u5faa\u73af\u7ed3\u6784\u7b80\u5355\u660e\u4e86\uff0c\u4f46\u5982\u679c\u6570\u636e\u91cf\u8f83\u5927\u65f6\uff0c\u7a0b\u5e8f\u7684\u6027\u80fd\u53ef\u80fd\u4f1a\u53d7\u5230\u5faa\u73af\u7ed3\u6784\u7684\u5f71\u54cd\u3002\u4e3a\u4e86\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u8651\u4f18\u5316\u5faa\u73af\u7ed3\u6784\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f18\u5316\u540e\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc data copyin(x[0:n], y[0:n])\n    {\n        #pragma acc parallel loop present(x[0:n], y[0:n]) \\\n            gang worker vector independent \\\n            collapse(2) tile(16)\n        for (int i = 0; i &lt; n; i += 16) {\n            for (int j = 0; j &lt; n; j += 16) {\n                #pragma acc loop independent \\\n                    vector reduction(+:y[i:i+15])\n                for (int k = 0; k &lt; 16; k++) {\n                    y[i+k] += a * x[j+k];\n                }\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528collapse\u6307\u4ee4\u5c06\u4e24\u4e2a\u5d4c\u5957\u5faa\u73af\u8f6c\u6362\u4e3a\u5355\u5c42\u5faa\u73af\uff0c\u4f7f\u7528tile\u6307\u4ee4\u5c06\u8fed\u4ee3\u533a\u57df\u5212\u5206\u4e3a\u5c0f\u7684\u5757\uff0c\u4ee5\u4fbf\u5728\u5171\u4eab\u5185\u5b58\u4e2d\u8fdb\u884c\u8ba1\u7b97\u3002\u5728\u5185\u90e8\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528loop\u6307\u4ee4\u5c06\u8fed\u4ee3\u5f7c\u6b64\u72ec\u7acb\uff0c\u4f7f\u7528reduction\u6307\u4ee4\u5c06\u8ba1\u7b97\u7ed3\u679c\u8fdb\u884c\u7d2f\u52a0\u3002\u901a\u8fc7\u8fd9\u4e9b\u4f18\u5316\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u5faa\u73af\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fdb\u884c\u5faa\u73af\u4f18\u5316\u65f6\uff0c\u9700\u8981\u5145\u5206\u8003\u8651\u786c\u4ef6\u8d44\u6e90\u7684\u9650\u5236\u548c\u6570\u636e\u5c40\u90e8\u6027\u7b49\u56e0\u7d20\uff0c\u4ee5\u907f\u514d\u51fa\u73b0\u6027\u80fd\u74f6\u9888\u548c\u8d1f\u8f7d\u4e0d\u5e73\u8861\u7b49\u95ee\u9898\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<p>\u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u5faa\u73af\u4f18\u5316\u6280\u672f\u662f\u5411\u91cf\u5316\u3002\u5728\u5411\u91cf\u5316\u4f18\u5316\u4e2d\uff0c\u5faa\u73af\u4e2d\u7684\u8ba1\u7b97\u88ab\u6253\u5305\u6210\u5411\u91cf\u8fd0\u7b97\uff0c\u4ee5\u4fbf\u4e00\u6b21\u5904\u7406\u591a\u4e2a\u5143\u7d20\u3002\u8fd9\u6837\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u8ba1\u7b97\u901f\u5ea6\u548c\u5e76\u884c\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u5411\u91cf\u5316\u4f18\u5316\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">csharpCopy code<code>void saxpy(int n, float a, float *x, float *y) {\n    #pragma acc data copyin(x[0:n], y[0:n])\n    {\n        #pragma acc parallel loop present(x[0:n], y[0:n]) \\\n            gang worker vector independent\n        for (int i = 0; i &lt; n; i += 4) {\n            #pragma acc loop independent vector\n            for (int j = 0; j &lt; 4; j++) {\n                y[i+j] += a * x[i+j];\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528parallel loop\u6307\u4ee4\u548cpresent\u5b50\u53e5\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\uff0c\u4f7f\u7528gang\u3001worker\u548cvector\u7b49\u6307\u4ee4\u5c06\u5faa\u73af\u8c03\u5ea6\u5230\u4e0d\u540c\u7684\u7ebf\u7a0b\u548c\u8ba1\u7b97\u5355\u5143\u4e2d\uff0c\u4f7f\u7528independent\u6307\u4ee4\u5c06\u5faa\u73af\u7ed3\u6784\u4e2d\u7684\u8fed\u4ee3\u5f7c\u6b64\u72ec\u7acb\uff0c\u4ee5\u907f\u514d\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u5728\u5185\u90e8\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528loop\u6307\u4ee4\u548cvector\u6307\u4ee4\u5c06\u8fed\u4ee3\u5f7c\u6b64\u72ec\u7acb\uff0c\u5e76\u5c06\u8ba1\u7b97\u6253\u5305\u6210\u5411\u91cf\u8fd0\u7b97\uff0c\u4ee5\u4fbf\u4e00\u6b21\u5904\u7406\u591a\u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fdb\u884c\u5411\u91cf\u5316\u4f18\u5316\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u8ba1\u7b97\u4efb\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u5f97\u5230\u6b63\u786e\u5904\u7406\uff0c\u4ee5\u907f\u514d\u51fa\u73b0\u8ba1\u7b97\u9519\u8bef\u548c\u6570\u636e\u5f02\u5e38\u7b49\u95ee\u9898\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u8c03\u8bd5OpenAcc\u4ee3\u7801<\/p>\n\n\n\n<p>\u8c03\u8bd5OpenACC\u4ee3\u7801\u548c\u8c03\u8bd5CPU\u4ee3\u7801\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5e38\u89c1\u7684\u8c03\u8bd5\u5de5\u5177\u548c\u6280\u672f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u8c03\u8bd5\u6280\u672f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528print\u8bed\u53e5\uff1a\u5728\u5faa\u73af\u7ed3\u6784\u5185\u90e8\u63d2\u5165print\u8bed\u53e5\uff0c\u8f93\u51fa\u4e00\u4e9b\u53d8\u91cf\u7684\u503c\uff0c\u4ee5\u68c0\u67e5\u7a0b\u5e8f\u7684\u8fd0\u884c\u60c5\u51b5\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u7a0b\u5e8f\u89c4\u6a21\u8f83\u5c0f\uff0c\u4ee3\u7801\u7ed3\u6784\u7b80\u5355\u7684\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u8c03\u8bd5\u5668\uff1a\u4f7f\u7528\u652f\u6301OpenACC\u7684\u8c03\u8bd5\u5668\uff0c\u5982Allinea DDT\u3001TotalView\u7b49\uff0c\u8bbe\u7f6e\u65ad\u70b9\uff0c\u9010\u6b65\u6267\u884c\u7a0b\u5e8f\uff0c\u67e5\u770b\u53d8\u91cf\u7684\u503c\u548c\u7a0b\u5e8f\u7684\u72b6\u6001\uff0c\u4ee5\u627e\u51fa\u7a0b\u5e8f\u9519\u8bef\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u7a0b\u5e8f\u89c4\u6a21\u8f83\u5927\uff0c\u4ee3\u7801\u7ed3\u6784\u590d\u6742\u7684\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u6027\u80fd\u5206\u6790\u5668\uff1a\u4f7f\u7528\u652f\u6301OpenACC\u7684\u6027\u80fd\u5206\u6790\u5668\uff0c\u5982NVIDIA Visual Profiler\u3001PGI ACC Profiler\u7b49\uff0c\u5206\u6790\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u548c\u70ed\u70b9\uff0c\u4ee5\u4f18\u5316\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u7a0b\u5e8f\u9700\u8981\u8fdb\u884c\u6027\u80fd\u4f18\u5316\u7684\u60c5\u51b5\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8c03\u8bd5OpenACC\u4ee3\u7801\u65f6\uff0c\u9700\u8981\u7279\u522b\u5173\u6ce8\u52a0\u901f\u5668\u548c\u4e3b\u673a\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u548c\u540c\u6b65\uff0c\u4ee5\u907f\u514d\u51fa\u73b0\u6570\u636e\u5f02\u5e38\u548c\u8ba1\u7b97\u9519\u8bef\u7b49\u95ee\u9898\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6027\u80fd\u5206\u6790\u5de5\u5177<\/p>\n\n\n\n<p>\u6027\u80fd\u5206\u6790\u5de5\u5177\u662f\u7528\u4e8e\u5206\u6790\u7a0b\u5e8f\u6027\u80fd\u74f6\u9888\u548c\u70ed\u70b9\u7684\u8f6f\u4ef6\u5de5\u5177\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u7531\u4e8e\u8ba1\u7b97\u4efb\u52a1\u7684\u5206\u5e03\u548c\u6267\u884c\u987a\u5e8f\u8f83\u4e3a\u590d\u6742\uff0c\u7a0b\u5e8f\u7684\u6027\u80fd\u5206\u6790\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u5e38\u89c1\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\u6709\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>NVIDIA Visual Profiler\uff1a\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8eNVIDIA GPU\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u4f18\u5316CUDA\u548cOpenACC\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u5b83\u53ef\u4ee5\u63d0\u4f9b\u5404\u79cd\u6027\u80fd\u6307\u6807\u7684\u5206\u6790\uff0c\u5305\u62ec\u5185\u5b58\u5e26\u5bbd\u3001\u8ba1\u7b97\u6548\u7387\u3001\u5185\u6838\u542f\u52a8\u65f6\u95f4\u7b49\u3002<\/li>\n\n\n\n<li>Intel VTune\uff1a\u8fd9\u662f\u4e00\u4e2a\u6027\u80fd\u5206\u6790\u5668\uff0c\u53ef\u7528\u4e8e\u5206\u6790\u8ba1\u7b97\u673a\u4e0a\u7684\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\uff0c\u5305\u62ecCPU\u548cGPU\u3002\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u5206\u6790\u5de5\u5177\uff0c\u5982CPU\u65f6\u95f4\u7ebf\u3001\u5185\u5b58\u5206\u6790\u5668\u3001\u7ebf\u7a0b\u5206\u6790\u5668\u7b49\u3002<\/li>\n\n\n\n<li>PGI ACC Profiler\uff1a\u8fd9\u662f\u4e00\u4e2a\u4e13\u4e3aPGI\u7f16\u8bd1\u5668\u548cOpenACC\u5e94\u7528\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\u3002\u5b83\u63d0\u4f9b\u4e86\u5404\u79cd\u6027\u80fd\u6307\u6807\u7684\u5206\u6790\uff0c\u5305\u62ec\u5185\u5b58\u5e26\u5bbd\u3001\u8ba1\u7b97\u6548\u7387\u3001\u5185\u6838\u542f\u52a8\u65f6\u95f4\u7b49\u3002<\/li>\n\n\n\n<li>Allinea MAP\uff1a\u8fd9\u662f\u4e00\u4e2a\u9762\u5411\u9ad8\u6027\u80fd\u8ba1\u7b97\u7684\u6027\u80fd\u5206\u6790\u5668\uff0c\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\u548c\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u3002\u5b83\u53ef\u4ee5\u5206\u6790CPU\u548cGPU\u7684\u6027\u80fd\uff0c\u5e76\u63d0\u4f9b\u5185\u5b58\u3001I\/O\u3001\u7f51\u7edc\u7b49\u65b9\u9762\u7684\u5206\u6790\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e9b\u6027\u80fd\u5206\u6790\u5de5\u5177\u90fd\u5177\u6709\u4e0d\u540c\u7684\u4f18\u7f3a\u70b9\uff0c\u5e76\u63d0\u4f9b\u4e0d\u540c\u7684\u529f\u80fd\u548c\u7279\u6027\u3002\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9009\u62e9\u548c\u8c03\u6574\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u6027\u80fd\u5206\u6790\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u6027\u80fd\u8c03\u4f18\u7b56\u7565<\/p>\n\n\n\n<p>\u6027\u80fd\u8c03\u4f18\u662f\u6307\u901a\u8fc7\u4f18\u5316\u7a0b\u5e8f\u4ee3\u7801\u548c\u8fd0\u884c\u73af\u5883\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u5728\u5e76\u884c\u8ba1\u7b97\u4e2d\uff0c\u7531\u4e8e\u8ba1\u7b97\u4efb\u52a1\u7684\u5206\u5e03\u548c\u6267\u884c\u987a\u5e8f\u8f83\u4e3a\u590d\u6742\uff0c\u7a0b\u5e8f\u7684\u6027\u80fd\u8c03\u4f18\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u6027\u80fd\u8c03\u4f18\u7b56\u7565\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6570\u636e\u5c40\u90e8\u6027\u4f18\u5316\uff1a\u5c3d\u53ef\u80fd\u5229\u7528\u6570\u636e\u7684\u5c40\u90e8\u6027\uff0c\u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u5ef6\u8fdf\u548c\u6570\u636e\u4f20\u8f93\u6b21\u6570\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u6570\u636e\u9884\u53d6\u3001\u6570\u636e\u5bf9\u9f50\u3001\u6570\u636e\u538b\u7f29\u7b49\u3002<\/li>\n\n\n\n<li>\u4efb\u52a1\u5e76\u884c\u4f18\u5316\uff1a\u5c06\u7a0b\u5e8f\u4e2d\u7684\u4efb\u52a1\u5206\u89e3\u4e3a\u591a\u4e2a\u72ec\u7acb\u7684\u5b50\u4efb\u52a1\uff0c\u5229\u7528\u5e76\u884c\u8ba1\u7b97\u7684\u4f18\u52bf\uff0c\u52a0\u901f\u7a0b\u5e8f\u7684\u6267\u884c\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u4efb\u52a1\u5206\u89e3\u3001\u4efb\u52a1\u8c03\u5ea6\u3001\u4efb\u52a1\u5408\u5e76\u7b49\u3002<\/li>\n\n\n\n<li>\u5faa\u73af\u5e76\u884c\u4f18\u5316\uff1a\u5c06\u7a0b\u5e8f\u4e2d\u7684\u5faa\u73af\u7ed3\u6784\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u8ba1\u7b97\u6548\u7387\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u5faa\u73af\u5c55\u5f00\u3001\u5faa\u73af\u878d\u5408\u3001\u5faa\u73af\u5206\u5757\u7b49\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u5e76\u884c\u4f18\u5316\uff1a\u5c06\u7a0b\u5e8f\u4e2d\u7684\u6570\u636e\u7ed3\u6784\u5212\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\uff0c\u5206\u914d\u5230\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5e76\u884c\u6548\u7387\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u6570\u636e\u5206\u5757\u3001\u6570\u636e\u5bf9\u9f50\u3001\u6570\u636e\u590d\u5236\u7b49\u3002<\/li>\n\n\n\n<li>\u5185\u5b58\u7ba1\u7406\u4f18\u5316\uff1a\u4f18\u5316\u5185\u5b58\u5206\u914d\u548c\u5185\u5b58\u8bbf\u95ee\u65b9\u5f0f\uff0c\u51cf\u5c11\u5185\u5b58\u8bbf\u95ee\u51b2\u7a81\u548c\u5185\u5b58\u5e26\u5bbd\u74f6\u9888\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u5185\u5b58\u6c60\u6280\u672f\u3001\u5185\u5b58\u5206\u914d\u7b97\u6cd5\u3001\u5185\u5b58\u9884\u5206\u914d\u7b49\u3002<\/li>\n\n\n\n<li>\u5e76\u884c\u7b97\u6cd5\u4f18\u5316\uff1a\u9009\u62e9\u5408\u9002\u7684\u5e76\u884c\u7b97\u6cd5\u548c\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u8ba1\u7b97\u6548\u7387\u548c\u5e76\u884c\u6548\u7387\u3002\u5e38\u89c1\u7684\u4f18\u5316\u65b9\u6cd5\u5305\u62ec\u5e76\u884c\u6392\u5e8f\u3001\u5e76\u884c\u641c\u7d22\u3001\u5e76\u884c\u56fe\u7b97\u6cd5\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fdb\u884c\u6027\u80fd\u8c03\u4f18\u65f6\uff0c\u9700\u8981\u5145\u5206\u4e86\u89e3\u7a0b\u5e8f\u7684\u6267\u884c\u673a\u5236\u548c\u8ba1\u7b97\u7279\u6027\uff0c\u4ee5\u627e\u51fa\u6027\u80fd\u74f6\u9888\u548c\u70ed\u70b9\uff0c\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u4f18\u5316\u7b56\u7565\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u793a\u4f8b\uff1a\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\u5b9e\u8df5<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528OpenACC\u5b9e\u73b0\u77e9\u9635\u4e58\u6cd5\u7684\u793a\u4f8b\uff0c\u5e76\u4f7f\u7528NVIDIA Visual Profiler\u8fdb\u884c\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\u7684\u5b9e\u8df5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>void matmul(int n, float *a, float *b, float *c) {\n    #pragma acc data copyin(a[0:n*n], b[0:n*n]), copyout(c[0:n*n])\n    {\n        #pragma acc kernels loop independent\n        for (int i = 0; i &lt; n; i++) {\n            #pragma acc loop independent\n            for (int j = 0; j &lt; n; j++) {\n                float sum = 0.0;\n                #pragma acc loop reduction(+:sum) independent vector\n                for (int k = 0; k &lt; n; k++) {\n                    sum += a[i*n+k] * b[k*n+j];\n                }\n                c[i*n+j] = sum;\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528OpenACC\u5b9e\u73b0\u4e86\u77e9\u9635\u4e58\u6cd5\uff0c\u5e76\u4f7f\u7528data\u6307\u4ee4\u3001kernels\u6307\u4ee4\u548cloop\u6307\u4ee4\u7b49\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u548c\u4f18\u5316\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u8fdb\u4e00\u6b65\u4f18\u5316\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528NVIDIA Visual Profiler\u8fdb\u884c\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u542f\u52a8NVIDIA Visual Profiler\uff0c\u5e76\u9009\u62e9\u76f8\u5e94\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5728\u201cConfiguration\u201d\u9009\u9879\u5361\u4e2d\uff0c\u9009\u62e9\u201cProfile OpenACC code\u201d\u9009\u9879\uff0c\u5e76\u8bbe\u7f6e\u76f8\u5e94\u7684\u53c2\u6570\u3002<\/li>\n\n\n\n<li>\u5728\u201cMetrics\u201d\u9009\u9879\u5361\u4e2d\uff0c\u9009\u62e9\u8981\u5206\u6790\u7684\u6027\u80fd\u6307\u6807\uff0c\u5982\u8ba1\u7b97\u6548\u7387\u3001\u5185\u5b58\u5e26\u5bbd\u7b49\u3002\u8fd9\u4e9b\u6027\u80fd\u6307\u6807\u53ef\u4ee5\u7528\u4e8e\u5206\u6790\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u548c\u70ed\u70b9\u3002<\/li>\n\n\n\n<li>\u5728\u201cTimeline\u201d\u9009\u9879\u5361\u4e2d\uff0c\u53ef\u4ee5\u67e5\u770b\u7a0b\u5e8f\u7684\u6267\u884c\u65f6\u95f4\u7ebf\uff0c\u5e76\u5206\u6790\u7a0b\u5e8f\u7684\u6267\u884c\u8fc7\u7a0b\u3002\u901a\u8fc7\u67e5\u770b\u65f6\u95f4\u7ebf\uff0c\u53ef\u4ee5\u786e\u5b9a\u7a0b\u5e8f\u7684\u74f6\u9888\u548c\u70ed\u70b9\u3002<\/li>\n\n\n\n<li>\u5728\u201cSummary\u201d\u9009\u9879\u5361\u4e2d\uff0c\u53ef\u4ee5\u67e5\u770b\u7a0b\u5e8f\u7684\u6027\u80fd\u6458\u8981\uff0c\u5e76\u5206\u6790\u7a0b\u5e8f\u7684\u6027\u80fd\u74f6\u9888\u548c\u70ed\u70b9\u3002\u5728\u6b64\u57fa\u7840\u4e0a\uff0c\u53ef\u4ee5\u4f18\u5316\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u672c\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528NVIDIA Visual Profiler\u8fdb\u884c\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\u540e\uff0c\u53d1\u73b0\u5faa\u73af\u90e8\u5206\u7684\u8ba1\u7b97\u6548\u7387\u8f83\u4f4e\uff0c\u4e14\u5b58\u5728\u5185\u5b58\u5e26\u5bbd\u74f6\u9888\u3002\u4e3a\u4e86\u4f18\u5316\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528loop\u6307\u4ee4\u548cvector\u6307\u4ee4\u5c06\u5faa\u73af\u8f6c\u6362\u4e3a\u5e76\u884c\u8ba1\u7b97\uff0c\u5e76\u4f7f\u7528reduction\u6307\u4ee4\u8fdb\u884c\u7ed3\u679c\u7d2f\u52a0\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528data\u6307\u4ee4\u548cpresent\u5b50\u53e5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u548c\u7ba1\u7406\uff0c\u4ee5\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u6b21\u6570\u548c\u5185\u5b58\u8bbf\u95ee\u51b2\u7a81\u3002<\/p>\n\n\n\n<p>\u6700\u7ec8\u4f18\u5316\u540e\u7684\u7a0b\u5e8f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>void matmul(int n, float *a, float *b, float *c) {\n    #pragma acc data copyin(a[0:n*n], b[0:n*n]), copyout(c[0:n*n])\n    {\n        #pragma acc kernels loop independent\n        for (int i = 0; i &lt; n; i++) {\n            #pragma acc loop independent\n            for (int j = 0; j &lt; n; j++) {\n                float sum = 0.0;\n                #pragma acc loop\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u7ee7\u7eed<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>            for (int k = 0; k &lt; n; k++) {\n                sum += a[i*n+k] * b[k*n+j];\n            }\n            c[i*n+j] = sum;\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>}<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Copy code<code>\n\u901a\u8fc7\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18\uff0c\u7a0b\u5e8f\u7684\u8ba1\u7b97\u6548\u7387\u548c\u5185\u5b58\u5e26\u5bbd\u5f97\u5230\u4e86\u663e\u8457\u7684\u63d0\u9ad8\uff0c\u5b9e\u73b0\u4e86\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u540c\u65f6\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u907f\u514d\u51fa\u73b0\u6570\u636e\u5f02\u5e38\u548c\u8ba1\u7b97\u9519\u8bef\u7b49\u95ee\u9898\u3002\n<\/code><\/pre>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e0d\u540c\u9886\u57df\u7684OpenAcc\u5e94\u7528\u6848\u4f8b<\/p>\n\n\n\n<p>OpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u4e2a\u9886\u57df\u7684\u79d1\u5b66\u8ba1\u7b97\u548c\u5de5\u7a0b\u5e94\u7528\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e0d\u540c\u9886\u57df\u7684OpenACC\u5e94\u7528\u6848\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u751f\u547d\u79d1\u5b66\uff1aOpenACC\u53ef\u7528\u4e8e\u751f\u7269\u4fe1\u606f\u5b66\u3001\u533b\u5b66\u56fe\u50cf\u5904\u7406\u7b49\u9886\u57df\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u57fa\u56e0\u7ec4\u5b66\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u5bf9\u5927\u89c4\u6a21\u57fa\u56e0\u7ec4\u6570\u636e\u8fdb\u884c\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u548c\u5206\u6790\u3002<\/li>\n\n\n\n<li>\u7269\u7406\u5b66\uff1aOpenACC\u53ef\u7528\u4e8e\u7269\u7406\u5b66\u9886\u57df\u7684\u5927\u89c4\u6a21\u6570\u503c\u6a21\u62df\u548c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u8ba1\u7b97\u6d41\u4f53\u529b\u5b66\u548c\u5929\u4f53\u7269\u7406\u5b66\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u8ba1\u7b97\u6d41\u4f53\u52a8\u529b\u5b66\u548c\u5b87\u5b99\u5b66\u6a21\u62df\u3002<\/li>\n\n\n\n<li>\u6750\u6599\u79d1\u5b66\uff1aOpenACC\u53ef\u7528\u4e8e\u6750\u6599\u79d1\u5b66\u9886\u57df\u7684\u8ba1\u7b97\u6750\u6599\u5b66\u548c\u6750\u6599\u8bbe\u8ba1\u3002\u4f8b\u5982\uff0c\u5728\u56fa\u6001\u7269\u7406\u5b66\u548c\u6750\u6599\u79d1\u5b66\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u8ba1\u7b97\u6750\u6599\u7ed3\u6784\u3001\u70ed\u529b\u5b66\u6027\u8d28\u548c\u7535\u5b50\u7ed3\u6784\u7b49\u3002<\/li>\n\n\n\n<li>\u673a\u5668\u5b66\u4e60\uff1aOpenACC\u53ef\u7528\u4e8e\u673a\u5668\u5b66\u4e60\u548c\u6df1\u5ea6\u5b66\u4e60\u9886\u57df\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u56fe\u50cf\u8bc6\u522b\u548c\u81ea\u7136\u8bed\u8a00\u5904\u7406\u7b49\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u8bad\u7ec3\u548c\u4f18\u5316\u795e\u7ecf\u7f51\u7edc\u6a21\u578b\u3002<\/li>\n\n\n\n<li>\u91d1\u878d\u79d1\u5b66\uff1aOpenACC\u53ef\u7528\u4e8e\u91d1\u878d\u79d1\u5b66\u9886\u57df\u7684\u9ad8\u6027\u80fd\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u98ce\u9669\u7ba1\u7406\u548c\u6295\u8d44\u7ec4\u5408\u4f18\u5316\u7b49\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u8ba1\u7b97\u91d1\u878d\u6570\u636e\u548c\u6a21\u578b\u3002<\/li>\n\n\n\n<li>\u5730\u7403\u79d1\u5b66\uff1aOpenACC\u53ef\u7528\u4e8e\u5730\u7403\u79d1\u5b66\u9886\u57df\u7684\u6570\u503c\u6a21\u62df\u548c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u6c14\u8c61\u5b66\u548c\u5730\u8d28\u5b66\u7b49\u9886\u57df\uff0cOpenACC\u53ef\u7528\u4e8e\u9ad8\u6548\u5730\u8ba1\u7b97\u6c14\u5019\u6a21\u578b\u548c\u5730\u7403\u52a8\u529b\u5b66\u6a21\u62df\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0cOpenACC\u5728\u5404\u4e2a\u9886\u57df\u7684\u5e94\u7528\u6848\u4f8b\u4e30\u5bcc\u591a\u6837\uff0c\u5177\u6709\u5e7f\u6cdb\u7684\u9002\u7528\u6027\u548c\u7075\u6d3b\u6027\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u8f6c\u6362\u4e3aOpenAcc\u4ee3\u7801<\/p>\n\n\n\n<p>\u5c06\u73b0\u6709\u7684\u4e32\u884c\u4ee3\u7801\u8f6c\u6362\u4e3aOpenACC\u4ee3\u7801\u7684\u8fc7\u7a0b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5206\u6790\u7a0b\u5e8f\uff1a\u9996\u5148\u9700\u8981\u5bf9\u73b0\u6709\u7684\u4e32\u884c\u7a0b\u5e8f\u8fdb\u884c\u5206\u6790\uff0c\u4e86\u89e3\u7a0b\u5e8f\u7684\u8ba1\u7b97\u7279\u6027\u3001\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u548c\u6027\u80fd\u74f6\u9888\u7b49\u3002\u901a\u8fc7\u5206\u6790\uff0c\u53ef\u4ee5\u786e\u5b9a\u9700\u8981\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757\u548c\u4f18\u5316\u65b9\u6848\u3002<\/li>\n\n\n\n<li>\u63d2\u5165\u6307\u4ee4\uff1a\u5c06OpenACC\u6307\u4ee4\u63d2\u5165\u5230\u9700\u8981\u5e76\u884c\u5316\u7684\u4ee3\u7801\u5757\u4e2d\uff0c\u4ee5\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002OpenACC\u6307\u4ee4\u5305\u62ecdata\u6307\u4ee4\u3001kernels\u6307\u4ee4\u3001loop\u6307\u4ee4\u7b49\uff0c\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u548c\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>\u9009\u62e9\u52a0\u901f\u5668\uff1a\u9009\u62e9\u5408\u9002\u7684\u52a0\u901f\u5668\u8bbe\u5907\uff0c\u5982GPU\u6216\u8005\u5176\u4ed6\u52a0\u901f\u5361\u3002\u5728\u7a0b\u5e8f\u4e2d\u4f7f\u7528OpenACC\u7684device\u5b50\u53e5\u6307\u5b9a\u8981\u4f7f\u7528\u7684\u52a0\u901f\u5668\u8bbe\u5907\uff0c\u4ee5\u5b9e\u73b0\u52a0\u901f\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>\u8c03\u8bd5\u548c\u4f18\u5316\uff1a\u5728\u8fdb\u884c\u5e76\u884c\u5316\u8f6c\u6362\u540e\uff0c\u9700\u8981\u8fdb\u884c\u8c03\u8bd5\u548c\u4f18\u5316\u3002\u53ef\u4ee5\u4f7f\u7528\u6027\u80fd\u5206\u6790\u5de5\u5177\u5bf9\u7a0b\u5e8f\u8fdb\u884c\u5206\u6790\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5177\u4f53\u7684\u8f6c\u6362\u8fc7\u7a0b\u53ef\u80fd\u4f1a\u56e0\u7a0b\u5e8f\u7684\u7279\u70b9\u548c\u590d\u6742\u6027\u800c\u6709\u6240\u4e0d\u540c\uff0c\u4f46\u4e00\u822c\u7684\u6d41\u7a0b\u5982\u4e0a\u6240\u8ff0\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8fdb\u884c\u5e76\u884c\u5316\u8f6c\u6362\u65f6\uff0c\u9700\u8981\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u907f\u514d\u51fa\u73b0\u6570\u636e\u5f02\u5e38\u548c\u8ba1\u7b97\u9519\u8bef\u7b49\u95ee\u9898\u3002\u540c\u65f6\uff0c\u8fd8\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u7684\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u793a\u4f8b\uff1a\u5b9e\u9645\u95ee\u9898\u7684OpenAcc\u89e3\u51b3\u65b9\u6848<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u9645\u95ee\u9898\u7684OpenACC\u89e3\u51b3\u65b9\u6848\u793a\u4f8b\uff1a\u52a0\u901f\u56fe\u50cf\u5904\u7406\u4e2d\u7684\u6a21\u7cca\u6ee4\u6ce2\u5668\u3002<\/p>\n\n\n\n<p>\u5728\u56fe\u50cf\u5904\u7406\u4e2d\uff0c\u6a21\u7cca\u6ee4\u6ce2\u5668\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u56fe\u50cf\u5904\u7406\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e73\u6ed1\u56fe\u50cf\u5e76\u53bb\u9664\u566a\u58f0\u3002\u4f20\u7edf\u7684\u4e32\u884c\u5b9e\u73b0\u65b9\u5f0f\u9700\u8981\u5bf9\u6bcf\u4e2a\u50cf\u7d20\u8fdb\u884c\u904d\u5386\u548c\u8ba1\u7b97\uff0c\u8ba1\u7b97\u91cf\u8f83\u5927\uff0c\u8ba1\u7b97\u65f6\u95f4\u8f83\u957f\u3002\u4f7f\u7528OpenACC\u5e76\u884c\u5316\u8ba1\u7b97\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u57fa\u4e8eOpenACC\u7684\u6a21\u7cca\u6ee4\u6ce2\u5668\u5b9e\u73b0\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cCopy code<code>void blur_filter(int width, int height, float *image, int radius, float *result) {\n    #pragma acc data copyin(image[0:width*height]), copyout(result[0:width*height])\n    {\n        #pragma acc kernels loop gang collapse(2)\n        for (int y = 0; y &lt; height; y++) {\n            for (int x = 0; x &lt; width; x++) {\n                float sum = 0.0;\n                float count = 0.0;\n                #pragma acc loop seq\n                for (int i = -radius; i &lt;= radius; i++) {\n                    for (int j = -radius; j &lt;= radius; j++) {\n                        int xk = x + j;\n                        int yk = y + i;\n                        if (xk &gt;= 0 &amp;&amp; xk &lt; width &amp;&amp; yk &gt;= 0 &amp;&amp; yk &lt; height) {\n                            sum += image[yk*width+xk];\n                            count += 1.0;\n                        }\n                    }\n                }\n                result[y*width+x] = sum \/ count;\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528OpenACC\u7684kernels\u6307\u4ee4\u548cloop\u6307\u4ee4\u5c06\u5faa\u73af\u5e76\u884c\u5316\uff0c\u4f7f\u7528collapse\u5b50\u53e5\u5c06\u4e24\u4e2a\u5faa\u73af\u8fdb\u884c\u6298\u53e0\uff0c\u4ee5\u63d0\u9ad8\u5e76\u884c\u8ba1\u7b97\u7684\u6548\u7387\u3002\u540c\u65f6\uff0c\u4f7f\u7528data\u6307\u4ee4\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u548c\u7ba1\u7406\uff0c\u4ee5\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u6b21\u6570\u548c\u5185\u5b58\u8bbf\u95ee\u51b2\u7a81\u3002<\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\uff0c\u4f8b\u5982\u4f7f\u7528vector\u6307\u4ee4\u8fdb\u884cSIMD\u4f18\u5316\u3001\u4f7f\u7528async\u6307\u4ee4\u8fdb\u884c\u5f02\u6b65\u8ba1\u7b97\u7b49\u3002\u540c\u65f6\uff0c\u8fd8\u9700\u8981\u8fdb\u884c\u8c03\u8bd5\u548c\u4f18\u5316\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528OpenACC\u7684\u5e76\u884c\u5316\u8ba1\u7b97\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6a21\u7cca\u6ee4\u6ce2\u5668\u7684\u8ba1\u7b97\u6548\u7387\uff0c\u5e76\u5728\u5b9e\u9645\u56fe\u50cf\u5904\u7406\u5e94\u7528\u4e2d\u83b7\u5f97\u66f4\u597d\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u7684\u5f71\u54cd<\/p>\n\n\n\n<p>OpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u53d1\u6325\u7740\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5177\u6709\u4ee5\u4e0b\u51e0\u65b9\u9762\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\uff1aOpenACC\u901a\u8fc7\u5e76\u884c\u5316\u8ba1\u7b97\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\u548c\u6548\u7387\uff0c\u5b9e\u73b0\u66f4\u5feb\u7684\u8ba1\u7b97\u901f\u5ea6\u548c\u66f4\u9ad8\u7684\u8ba1\u7b97\u7cbe\u5ea6\u3002\u7279\u522b\u662f\u5728\u5927\u89c4\u6a21\u79d1\u5b66\u8ba1\u7b97\u548c\u5de5\u7a0b\u5e94\u7528\u4e2d\uff0cOpenACC\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u8ba1\u7b97\u901f\u5ea6\u548c\u541e\u5410\u91cf\uff0c\u52a0\u5feb\u6a21\u62df\u548c\u8ba1\u7b97\u7684\u8fdb\u7a0b\uff0c\u4e3a\u79d1\u5b66\u7814\u7a76\u548c\u5de5\u7a0b\u5e94\u7528\u63d0\u4f9b\u66f4\u52a0\u9ad8\u6548\u7684\u8ba1\u7b97\u652f\u6301\u3002<\/li>\n\n\n\n<li>\u6269\u5c55\u5e94\u7528\u8303\u56f4\uff1aOpenACC\u5177\u6709\u826f\u597d\u7684\u53ef\u79fb\u690d\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u8ba1\u7b97\u5e73\u53f0\u4e0a\u8fdb\u884c\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7OpenACC\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u8ba1\u7b97\u8bbe\u5907\u4e0a\u5b9e\u73b0\u76f8\u540c\u7684\u5e76\u884c\u8ba1\u7b97\uff0c\u5e76\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u6269\u5c55\u5e94\u7528\u8303\u56f4\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u548c\u6548\u76ca\u3002<\/li>\n\n\n\n<li>\u4fc3\u8fdb\u5f00\u653e\u521b\u65b0\uff1aOpenACC\u662f\u4e00\u79cd\u5f00\u653e\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u5438\u6536\u4e0d\u540c\u8ba1\u7b97\u5e73\u53f0\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97\u6280\u672f\u548c\u7ecf\u9a8c\uff0c\u4e3a\u5f00\u653e\u521b\u65b0\u63d0\u4f9b\u4e86\u66f4\u52a0\u4fbf\u6377\u7684\u5e73\u53f0\u548c\u73af\u5883\u3002\u901a\u8fc7OpenACC\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u501f\u52a9\u793e\u533a\u8d44\u6e90\u548c\u5408\u4f5c\u673a\u4f1a\uff0c\u5171\u540c\u63a2\u7d22\u5e76\u884c\u8ba1\u7b97\u7684\u524d\u6cbf\u6280\u672f\u548c\u5e94\u7528\uff0c\u63a8\u52a8\u9ad8\u6027\u80fd\u8ba1\u7b97\u7684\u521b\u65b0\u548c\u53d1\u5c55\u3002<\/li>\n\n\n\n<li>\u52a0\u901f\u79d1\u5b66\u7814\u7a76\uff1aOpenACC\u5728\u79d1\u5b66\u7814\u7a76\u9886\u57df\u7684\u5e94\u7528\u5e7f\u6cdb\uff0c\u5305\u62ec\u5929\u6587\u5b66\u3001\u7269\u7406\u5b66\u3001\u5316\u5b66\u3001\u751f\u7269\u5b66\u3001\u5730\u7403\u79d1\u5b66\u7b49\u591a\u4e2a\u9886\u57df\u3002\u901a\u8fc7OpenACC\uff0c\u79d1\u5b66\u5bb6\u4eec\u53ef\u4ee5\u66f4\u52a0\u9ad8\u6548\u5730\u8fdb\u884c\u5927\u89c4\u6a21\u6570\u503c\u6a21\u62df\u548c\u6570\u636e\u5206\u6790\uff0c\u5b9e\u73b0\u66f4\u5feb\u7684\u7814\u7a76\u8fdb\u5c55\u548c\u66f4\u6df1\u5165\u7684\u79d1\u5b66\u53d1\u73b0\uff0c\u52a0\u901f\u79d1\u5b66\u7814\u7a76\u7684\u8fdb\u7a0b\u548c\u6210\u679c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cOpenACC\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u53d1\u6325\u7740\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u4e3a\u79d1\u5b66\u7814\u7a76\u548c\u5de5\u7a0b\u5e94\u7528\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u8ba1\u7b97\u652f\u6301\u548c\u521b\u65b0\u5e73\u53f0\u3002\u5728\u672a\u6765\uff0c\u968f\u7740\u8ba1\u7b97\u6280\u672f\u548c\u5e94\u7528\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cOpenACC\u4ecd\u5c06\u7ee7\u7eed\u53d1\u6325\u5176\u91cd\u8981\u4f5c\u7528\uff0c\u63a8\u52a8\u9ad8\u6027\u80fd\u8ba1\u7b97\u7684\u8fdb\u4e00\u6b65\u53d1\u5c55\u548c\u5e94\u7528\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u7684\u5c40\u9650\u6027<\/p>\n\n\n\n<p>OpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u867d\u7136\u5177\u6709\u8bb8\u591a\u4f18\u70b9\u548c\u4f18\u52bf\uff0c\u4f46\u4ecd\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027\u548c\u4e0d\u8db3\u4e4b\u5904\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b66\u4e60\u6210\u672c\u9ad8\uff1aOpenACC\u867d\u7136\u76f8\u5bf9\u4e8e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u6765\u8bf4\u6bd4\u8f83\u5bb9\u6613\u4e0a\u624b\uff0c\u4f46\u662f\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u4ecd\u9700\u8981\u82b1\u8d39\u76f8\u5f53\u7684\u65f6\u95f4\u548c\u7cbe\u529b\u6765\u5b66\u4e60\u548c\u638c\u63e1\u3002\u7279\u522b\u662f\u5bf9\u4e8e\u6ca1\u6709\u5e76\u884c\u7f16\u7a0b\u7ecf\u9a8c\u7684\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u9700\u8981\u6295\u5165\u5927\u91cf\u7684\u5b66\u4e60\u6210\u672c\uff0c\u624d\u80fd\u591f\u7f16\u5199\u9ad8\u6548\u7684\u5e76\u884c\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u6027\u80fd\u63d0\u5347\u53d7\u9650\uff1aOpenACC\u901a\u8fc7\u5e76\u884c\u8ba1\u7b97\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\u548c\u6548\u7387\uff0c\u4f46\u662f\u53d7\u9650\u4e8e\u786c\u4ef6\u67b6\u6784\u548c\u7b97\u6cd5\u7279\u70b9\u7b49\u56e0\u7d20\uff0c\u6027\u80fd\u63d0\u5347\u53ef\u80fd\u53d7\u5230\u9650\u5236\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7531\u4e8e\u5185\u5b58\u8bbf\u95ee\u7b49\u539f\u56e0\uff0cOpenACC\u7a0b\u5e8f\u7684\u6027\u80fd\u53ef\u80fd\u4e0d\u5982\u624b\u52a8\u4f18\u5316\u7684\u5e76\u884c\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u5185\u5b58\u7ba1\u7406\u9650\u5236\uff1aOpenACC\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u76f8\u5bf9\u4e8e\u624b\u52a8\u7ba1\u7406\u6765\u8bf4\u6709\u4e00\u5b9a\u7684\u5c40\u9650\u6027\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u624b\u52a8\u63a7\u5236\u5185\u5b58\u7684\u5206\u914d\u548c\u91ca\u653e\uff0c\u4ee5\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u548c\u6027\u80fd\u4e0b\u964d\u7b49\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u5e76\u884c\u6027\u4e0d\u8db3\uff1aOpenACC\u4e3b\u8981\u662f\u9488\u5bf9\u6570\u636e\u5e76\u884c\u8ba1\u7b97\u8fdb\u884c\u4f18\u5316\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u4efb\u52a1\u5e76\u884c\u6216\u8005\u6df7\u5408\u5e76\u884c\u8ba1\u7b97\u7684\u5e94\u7528\u573a\u666f\uff0c\u53ef\u80fd\u65e0\u6cd5\u5b8c\u5168\u53d1\u6325\u5176\u4f18\u52bf\u548c\u6548\u76ca\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cOpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u5177\u6709\u8bb8\u591a\u4f18\u70b9\u548c\u4f18\u52bf\uff0c\u4f46\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027\u548c\u4e0d\u8db3\u4e4b\u5904\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\uff0c\u7ed3\u5408\u5176\u4ed6\u7f16\u7a0b\u6a21\u578b\u548c\u4f18\u5316\u6280\u672f\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u4f18\u5316\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caOpenAcc\u7684\u672a\u6765\u53d1\u5c55\u65b9\u5411<\/p>\n\n\n\n<p>OpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u5df2\u7ecf\u5728\u79d1\u5b66\u8ba1\u7b97\u3001\u5927\u6570\u636e\u5206\u6790\u3001\u6df1\u5ea6\u5b66\u4e60\u7b49\u591a\u4e2a\u9886\u57df\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u63a8\u5e7f\uff0c\u672a\u6765\u7684\u53d1\u5c55\u65b9\u5411\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u66f4\u597d\u7684\u6027\u80fd\u548c\u6548\u7387\uff1aOpenACC\u7684\u53d1\u5c55\u65b9\u5411\u4e4b\u4e00\u662f\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\uff0c\u4ee5\u66f4\u597d\u5730\u6ee1\u8db3\u5927\u89c4\u6a21\u79d1\u5b66\u8ba1\u7b97\u548c\u5de5\u7a0b\u5e94\u7528\u7684\u9700\u6c42\u3002\u901a\u8fc7\u4e0e\u786c\u4ef6\u67b6\u6784\u548c\u7b97\u6cd5\u7279\u70b9\u7684\u7ed3\u5408\uff0c\u4f18\u5316\u6570\u636e\u4f20\u8f93\u3001\u5185\u5b58\u7ba1\u7406\u3001\u5e76\u884c\u8ba1\u7b97\u7b49\u65b9\u9762\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u4f18\u5316\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>\u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u8303\u56f4\uff1aOpenACC\u7684\u5e94\u7528\u9886\u57df\u6b63\u5728\u4e0d\u65ad\u6269\u5c55\uff0c\u5305\u62ec\u5929\u6587\u5b66\u3001\u7269\u7406\u5b66\u3001\u5316\u5b66\u3001\u751f\u7269\u5b66\u3001\u5730\u7403\u79d1\u5b66\u3001\u6df1\u5ea6\u5b66\u4e60\u7b49\u591a\u4e2a\u9886\u57df\u3002\u672a\u6765\uff0cOpenACC\u5c06\u7ee7\u7eed\u63a8\u5e7f\u548c\u5e94\u7528\uff0c\u8fdb\u4e00\u6b65\u62d3\u5c55\u5e94\u7528\u8303\u56f4\uff0c\u4e3a\u66f4\u591a\u7684\u5e94\u7528\u573a\u666f\u63d0\u4f9b\u9ad8\u6548\u7684\u5e76\u884c\u8ba1\u7b97\u652f\u6301\u3002<\/li>\n\n\n\n<li>\u66f4\u52a0\u4fbf\u6377\u7684\u7f16\u7a0b\u4f53\u9a8c\uff1aOpenACC\u7684\u7f16\u7a0b\u4f53\u9a8c\u76f8\u5bf9\u4e8e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u6765\u8bf4\u5df2\u7ecf\u5f88\u597d\uff0c\u4f46\u4ecd\u9700\u8981\u8fdb\u4e00\u6b65\u6539\u8fdb\u548c\u4f18\u5316\u3002\u672a\u6765\uff0cOpenACC\u5c06\u901a\u8fc7\u66f4\u52a0\u7b80\u5355\u7684\u8bed\u6cd5\u3001\u66f4\u52a0\u5b8c\u5584\u7684\u5de5\u5177\u94fe\u3001\u66f4\u52a0\u53cb\u597d\u7684\u5f00\u53d1\u73af\u5883\u7b49\u65b9\u9762\uff0c\u63d0\u9ad8\u7f16\u7a0b\u4f53\u9a8c\uff0c\u964d\u4f4e\u5b66\u4e60\u95e8\u69db\uff0c\u5438\u5f15\u66f4\u591a\u7684\u5f00\u53d1\u8005\u53c2\u4e0e\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li>\u66f4\u52a0\u5f00\u653e\u548c\u5408\u4f5c\uff1aOpenACC\u4f5c\u4e3a\u4e00\u79cd\u5f00\u653e\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u5df2\u7ecf\u5438\u5f15\u4e86\u4f17\u591a\u5f00\u53d1\u8005\u548c\u7ec4\u7ec7\u7684\u53c2\u4e0e\u548c\u8d21\u732e\u3002\u672a\u6765\uff0cOpenACC\u5c06\u7ee7\u7eed\u5f00\u653e\u548c\u5408\u4f5c\uff0c\u501f\u52a9\u793e\u533a\u8d44\u6e90\u548c\u5408\u4f5c\u673a\u4f1a\uff0c\u63a8\u52a8\u5e76\u884c\u8ba1\u7b97\u7684\u524d\u6cbf\u6280\u672f\u548c\u5e94\u7528\uff0c\u52a0\u901f\u9ad8\u6027\u80fd\u8ba1\u7b97\u7684\u53d1\u5c55\u548c\u5e94\u7528\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cOpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u672a\u6765\u7684\u53d1\u5c55\u65b9\u5411\u5c06\u7ee7\u7eed\u671d\u7740\u66f4\u597d\u7684\u6027\u80fd\u548c\u6548\u7387\u3001\u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u8303\u56f4\u3001\u66f4\u52a0\u4fbf\u6377\u7684\u7f16\u7a0b\u4f53\u9a8c\u3001\u66f4\u52a0\u5f00\u653e\u548c\u5408\u4f5c\u7b49\u65b9\u5411\u53d1\u5c55\uff0c\u4e3a\u79d1\u5b66\u7814\u7a76\u548c\u5de5\u7a0b\u5e94\u7528\u63d0\u4f9b\u66f4\u52a0\u9ad8\u6548\u548c\u4f18\u5316\u7684\u5e76\u884c\u8ba1\u7b97\u652f\u6301\u3002<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=96&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u6574\u5408<\/p>\n\n\n\n<p>OpenACC\u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\uff0c\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u7684\u6574\u5408\u53ef\u4ee5\u6709\u6548\u5730\u6269\u5c55\u5e94\u7528\u8303\u56f4\u548c\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>MPI\u548cOpenMP\uff1aOpenACC\u53ef\u4ee5\u4e0eMPI\u548cOpenMP\u7b49\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u8fdb\u884c\u6574\u5408\uff0c\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u590d\u6742\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7MPI\u548cOpenMP\u7b49\u6a21\u578b\uff0c\u53ef\u4ee5\u8fdb\u884c\u4efb\u52a1\u5e76\u884c\u548c\u7ebf\u7a0b\u5e76\u884c\u7684\u4f18\u5316\uff0c\u52a0\u901f\u7a0b\u5e8f\u7684\u6267\u884c\u901f\u5ea6\u548c\u6548\u7387\uff0c\u6269\u5c55\u5e94\u7528\u8303\u56f4\u548c\u8ba1\u7b97\u89c4\u6a21\u3002<\/li>\n\n\n\n<li>CUDA\u548cOpenCL\uff1aOpenACC\u4e5f\u53ef\u4ee5\u4e0eCUDA\u548cOpenCL\u7b49GPU\u5e76\u884c\u8ba1\u7b97\u6a21\u578b\u8fdb\u884c\u6574\u5408\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u7075\u6d3b\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7CUDA\u548cOpenCL\u7b49\u6a21\u578b\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u6570\u636e\u4f20\u8f93\u3001\u5185\u5b58\u7ba1\u7406\u3001\u5e76\u884c\u8ba1\u7b97\u7b49\u65b9\u9762\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\u548c\u6548\u7387\u3002<\/li>\n\n\n\n<li>Chapel\u548cX10\uff1aOpenACC\u4e5f\u53ef\u4ee5\u4e0eChapel\u548cX10\u7b49\u65b0\u578b\u7684\u5e76\u884c\u7f16\u7a0b\u8bed\u8a00\u8fdb\u884c\u6574\u5408\uff0c\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u7b80\u5355\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7Chapel\u548cX10\u7b49\u8bed\u8a00\uff0c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u52a0\u7b80\u5355\u548c\u53cb\u597d\u7684\u8bed\u6cd5\u548c\u63a5\u53e3\uff0c\u964d\u4f4e\u5b66\u4e60\u95e8\u69db\uff0c\u52a0\u901f\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u4f18\u5316\u3002<\/li>\n\n\n\n<li>Python\u548cJulia\uff1aOpenACC\u8fd8\u53ef\u4ee5\u4e0ePython\u548cJulia\u7b49\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\u8fdb\u884c\u6574\u5408\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u4fbf\u6377\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7Python\u548cJulia\u7b49\u8bed\u8a00\uff0c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u52a0\u7b80\u5355\u548c\u7075\u6d3b\u7684\u8bed\u6cd5\u548c\u63a5\u53e3\uff0c\u652f\u6301\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u7b49\u5e94\u7528\u9886\u57df\u7684\u5feb\u901f\u5f00\u53d1\u548c\u4f18\u5316\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cOpenACC\u53ef\u4ee5\u4e0e\u5176\u4ed6\u5e76\u884c\u7f16\u7a0b\u6a21\u578b\u8fdb\u884c\u6574\u5408\uff0c\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u548c\u4f18\u5316\u7684\u5e76\u884c\u8ba1\u7b97\u3002\u901a\u8fc7\u4e0d\u540c\u6a21\u578b\u7684\u7ed3\u5408\uff0c\u53ef\u4ee5\u6ee1\u8db3\u4e0d\u540c\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\uff0c\u52a0\u901f\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u4f18\u5316\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6027\u80fd\u548c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u662f\u8981\u505aIT\u6559\u7a0b\u7684\u89c6\u9891\uff0c\u4f60\u80fd\u5426\u6839\u636e\u7f51\u7ad9\u7684 &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1812","post","type-post","status-publish","format-standard","hentry","category-material"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1812"}],"version-history":[{"count":1,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1812\/revisions"}],"predecessor-version":[{"id":1813,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/1812\/revisions\/1813"}],"wp:attachment":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}