{"id":204190,"date":"2025-05-29T11:36:54","date_gmt":"2025-05-29T03:36:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204190\/"},"modified":"2025-05-29T11:36:54","modified_gmt":"2025-05-29T03:36:54","slug":"gpu-%e8%ae%ad%e7%bb%83%e6%97%b6-cpu-%e5%88%a9%e7%94%a8%e7%8e%87%e8%bf%87%e9%ab%98%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204190\/","title":{"rendered":"GPU \u8bad\u7ec3\u65f6 CPU \u5229\u7528\u7387\u8fc7\u9ad8\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

GPU \u8bad\u7ec3\u65f6 CPU \u5229\u7528\u7387\u8fc7\u9ad8\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

<\/p>\n

\u89e3\u51b3 gpu \u6a21\u578b\u8bad\u7ec3\u671f\u95f4 cpu \u5229\u7528\u7387\u9ad8\u7684\u96be\u9898<\/strong><\/p>\n

\u95ee\u9898\u63cf\u8ff0\uff1a\u4f7f\u7528 cuda 11.6 \u548c pytorch 1.12 \u8fdb\u884c gpu \u6a21\u578b\u8bad\u7ec3\uff0c\u4f46\u89c2\u5bdf\u5230 gpu \u5229\u7528\u7387\u6781\u4f4e\uff0c\u800c cpu \u5229\u7528\u7387\u5374\u9ad8\u8fbe 95%\u3002<\/p>\n

\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n

1. \u9a8c\u8bc1 gpu \u914d\u7f6e\uff1a<\/strong><\/p>\n

import torch\nprint(torch.cuda.is_available())<\/pre>\n
\u5982\u679c\u8f93\u51fa\u4e3a false\uff0c\u5219\u8868\u660e gpu \u914d\u7f6e\u672a\u6210\u529f\u3002<\/p>\n
2. \u6307\u5b9a cuda \u8bbe\u5907\uff1a<\/strong><\/p>\n
\u5728\u4ee3\u7801\u4e2d\u660e\u786e\u6307\u5b9a cuda \u8bbe\u5907\u3002\u4f8b\u5982\uff1a<\/p>\n
import torch\ndevice = 'cuda:0' if torch.cuda.is_available() else 'cpu'\nfrom torchvision.models import ResNet\nResNet(......).to(device)<\/pre>\n
3. \u4ee3\u7801\u95ee\u9898\uff1a<\/strong><\/p>\n
\u5982\u679c gpu \u548c cuda \u914d\u7f6e\u65e0\u8bef\uff0c\u5219\u95ee\u9898\u53ef\u80fd\u51fa\u5728\u4ee3\u7801\u672c\u8eab\u3002 \u68c0\u67e5\u4ee3\u7801\u4e2d\u662f\u5426\u5b58\u5728\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u4f1a\u589e\u52a0 cpu \u5229\u7528\u7387\u3002 \u5c1d\u8bd5\u51cf\u5c11\u8fd9\u4e9b\u64cd\u4f5c\u7684\u5e76\u884c\u5ea6\u4ee5\u964d\u4f4e cpu \u5229\u7528\u7387\uff0c\u4f46\u4e5f\u53ef\u80fd\u5bfc\u81f4\u901f\u5ea6\u4e0b\u964d\u3002<\/p>\n
4. \u589e\u5927\u6279\u6b21\u5927\u5c0f\uff1a<\/strong><\/p>\n
\u589e\u5927\u6279\u91cf\u5927\u5c0f\u53ef\u4ee5 zwi\u0119ksz\u5229\u7528 gpu \u5185\u5b58\u3002 \u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u5373\u4f7f gpu \u5229\u7528\u7387\u7565\u4f4e\uff0c\u6a21\u578b\u4e5f\u53ef\u4ee5\u5904\u7406\u66f4\u591a\u6570\u636e\u3002<\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300aGPU \u8bad\u7ec3\u65f6 CPU \u5229\u7528\u7387\u8fc7\u9ad8\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
GPU \u8bad\u7ec3\u65f6 CPU \u5229\u7528\u7387\u8fc7...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204190","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204190"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204190\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}