{"id":14034,"date":"2026-06-10T05:40:44","date_gmt":"2026-06-09T21:40:44","guid":{"rendered":"https:\/\/ab123.xyz\/?p=14034"},"modified":"2026-06-10T05:40:44","modified_gmt":"2026-06-09T21:40:44","slug":"%e5%8d%8e%e4%b8%ba%e6%98%87%e8%85%be910b%e5%a4%a7%e6%a8%a1%e5%9e%8b%e8%ae%ad%e7%bb%83%e9%9b%86%e7%be%a4%e7%bd%91%e7%bb%9c%e6%8b%93%e6%89%91%e4%b8%8eallreduce%e8%b0%83%e4%bc%98%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/ab123.xyz\/?p=14034","title":{"rendered":"\u534e\u4e3a\u6607\u817e910B\u5927\u6a21\u578b\u8bad\u7ec3\u96c6\u7fa4\u7f51\u7edc\u62d3\u6251\u4e0eAllReduce\u8c03\u4f18\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"

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\u6607\u817e910B\u96c6\u7fa4\u7684\u7f51\u7edc\u62d3\u6251\u8bbe\u8ba1<\/h2>\n

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\u5173\u952e\u6027\u80fd\u6307\u6807<\/h3>\n
    \n
  • \u8282\u70b9\u5185\u5e26\u5bbd\uff1a800 GB\/s\uff08HCCS\u76f4\u8fde\uff09<\/li>\n
  • \u8282\u70b9\u95f4\u5e26\u5bbd\uff1a200 Gb\/s\uff08\u6bcf\u5f20\u7f51\u5361\uff09<\/li>\n
  • \u5168\u96c6\u7fa4\u7ebf\u6027\u5ea6\uff1a\u226595% (1024\u5361\u89c4\u6a21\u6d4b\u8bd5)<\/li>\n<\/ul>\n

    AllReduce\u8c03\u4f18\u6838\u5fc3\u65b9\u6cd5<\/h2>\n

    \u9488\u5bf9\u5927\u6a21\u578b\u8bad\u7ec3\u4e2d\u9891\u7e41\u7684\u68af\u5ea6\u540c\u6b65\uff0c\u534e\u4e3a\u63d0\u4f9b\u4e86\u591a\u5c42\u6b21\u8c03\u4f18\u624b\u6bb5\u3002\u9996\u5148\uff0c\u4fee\u6539\u73af\u5883\u53d8\u91cf\u542f\u7528HCCL_INTRA_NODE_COMM<\/code>\u4e3aring\u6a21\u5f0f\uff0c\u51cf\u5c11\u73af\u6570\uff1b\u5176\u6b21\uff0c\u8bbe\u7f6eHCCL_ALGO=Ring<\/code>\u5e76\u914d\u5408HCCL_NET_PLUGIN=hcn<\/code>\u4f7f\u7528\u534e\u4e3a\u81ea\u7814\u96c6\u5408\u901a\u4fe1\u5e93\u3002\u5b9e\u9645\u6d4b\u8bd5\u8868\u660e\uff0c\u5bf9\u4e8e175B\u53c2\u6570\u91cf\u7684\u6a21\u578b\uff0c\u7ecf\u8fc7\u8c03\u4f18\u540eAllReduce\u65f6\u95f4\u7f29\u77ed\u4e8632%\u3002<\/p>\n

    \u5b9e\u6218\u914d\u7f6e\u793a\u4f8b<\/h3>\n

    \u5728\u542f\u52a8\u8bad\u7ec3\u4efb\u52a1\u524d\uff0c\u5efa\u8bae\u6dfb\u52a0\u5982\u4e0b\u53c2\u6570\uff1a<\/p>\n

      \n
    • export HCCL_BUFFSIZE=256 # \u589e\u5927\u901a\u4fe1\u7f13\u51b2\u533a<\/li>\n
    • export HCCL_NET_PLL=1 # \u5f00\u542f\u7f51\u7edc\u6d41\u6c34\u7ebf<\/li>\n
    • export HCCL_OVERCOMM_UNBALANCED=1 # \u8d1f\u8f7d\u5747\u8861\u4f18\u5316<\/li>\n<\/ul>\n

      \u5e94\u7528\u573a\u666f\u4e0e\u5178\u578b\u6848\u4f8b<\/h2>\n

      \u8be5\u8c03\u4f18\u65b9\u6848\u5df2\u6210\u529f\u5e94\u7528\u4e8e\u591a\u4e2a\u5343\u4ebf\u53c2\u6570\u5927\u6a21\u578b\u7684\u8bad\u7ec3\uff0c\u5305\u62ec\u9e4f\u57ce\u00b7\u8111\u6d77\u3001\u76d8\u53e4\u5927\u6a21\u578b\u7b49\u3002\u5728\u57fa\u4e8e\u6607\u817e910B\u7684256\u8282\u70b9\u96c6\u7fa4\u4e0a\uff0c\u901a\u8fc7\u4e0a\u8ff0\u7f51\u7edc\u62d3\u6251\u4e0eAllReduce\u8054\u5408\u4f18\u5316\uff0c\u5b9e\u73b0\u6574\u4f53\u8bad\u7ec3\u541e\u5410\u63d0\u53471.8\u500d\uff0c\u901a\u4fe1\u5360\u6bd4\u4ece45%\u964d\u81f318%\u3002\u540c\u65f6\uff0c\u534e\u4e3a\u4e0e\u591a\u5bb6\u79d1\u7814\u673a\u6784\u5408\u4f5c\uff0c\u5728\u6c14\u8c61\u9884\u62a5\u3001\u836f\u7269\u5206\u5b50\u6a21\u62df\u7b49\u573a\u666f\u4e2d\u9a8c\u8bc1\u4e86\u5176\u9ad8\u6548\u6027\u3002<\/p>\n

      \u672a\u6765\u6f14\u8fdb\u65b9\u5411<\/h3>\n

      \u968f\u7740\u6607\u817e910C\u7684\u53d1\u5e03\uff0c\u96c6\u7fa4\u5c06\u5f15\u51653D\u73af\u9762\u62d3\u6251\u548c\u5149\u7535\u6df7\u5408\u4e92\u8054\uff0c\u901a\u4fe1\u6548\u7387\u6709\u671b\u518d\u63d0\u534740%\u3002\u5f00\u53d1\u8005\u5e94\u5173\u6ce8HCCL_AUTOTUNE<\/code>\u80fd\u529b\u7684\u8fed\u4ee3\uff0c\u5b9e\u73b0\u81ea\u52a8\u5316\u53c2\u6570\u9002\u914d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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