{"id":2788,"date":"2025-05-21T11:13:32","date_gmt":"2025-05-21T03:13:32","guid":{"rendered":"http:\/\/www.xzclass.com\/?p=2788"},"modified":"2025-08-19T15:43:47","modified_gmt":"2025-08-19T07:43:47","slug":"%e4%b8%80%e6%96%87%e7%9c%8b%e6%87%82%e8%8b%b1%e4%bc%9f%e8%be%be%e7%9a%84nvlink%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"http:\/\/www.xzclass.com\/?p=2788","title":{"rendered":"\u4e00\u6587\u770b\u61c2\u82f1\u4f1f\u8fbe\u7684NVLink\u6280\u672f"},"content":{"rendered":"
\u524d\u6bb5\u65f6\u95f4\u4ecb\u7ecd\u8d85\u8282\u70b9\uff08<\/span>\u6700\u8fd1\u5f88\u706b\u7684\u201c\u8d85\u8282\u70b9\u201d\uff0c\u5230\u5e95\u662f\u5e72\u5565\u7684\uff1f<\/span><\/a>\uff09\u7684\u65f6\u5019\uff0c\u6709\u5f88\u591a\u8bfb\u8005\u8ffd\u95eeNVLINK\u7684\u7ec6\u8282\u3002<\/span><\/span><\/section>\n

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\u4eca\u5929\u5e72\u8106\u5355\u72ec\u5f00\u4e00\u7bc7\uff0c\u8bb2\u8bb2<\/span><\/span>NVLink\u3002<\/span><\/span><\/section>\n

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\u2588<\/span> <\/span>NVLink\u7684\u8bde\u751f\u80cc\u666f<\/span><\/span><\/section>\n

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\u4e0a\u4e16\u7eaa80-90\u5e74\u4ee3\uff0c\u8ba1\u7b97\u673a\u6280\u672f\u9ad8\u901f\u53d1\u5c55\uff0c\u9010\u6e10\u5f62\u6210\u4e86\u82f1\u7279\u5c14\u548c\u5fae\u8f6f\u4e3a\u4ee3\u8868\u7684\u201cWintel\u201d\u8f6f\u786c\u4ef6\u4f53\u7cfb\u3002<\/span><\/span><\/section>\n

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\u5728\u786c\u4ef6\u4e0a\uff0c\u57fa\u672c\u4e0a\u90fd\u662f\u56f4\u7ed5\u82f1\u7279\u5c14\u7684x86 CPU\u8fdb\u884c\u6784\u5efa\u3002\u4e3a\u4e86\u80fd\u8ba9\u8ba1\u7b97\u673a\u5185\u90e8\u80fd\u591f\u66f4\u597d\u5730\u4f20\u8f93\u6570\u636e\uff0c\u82f1\u7279\u5c14\u7275\u5934\u8bbe\u8ba1\u4e86PCIe\u603b\u7ebf\u3002<\/span><\/span><\/section>\n

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\u61c2\u7535\u8111\u7684\u540c\u5b66\uff0c\u5e94\u8be5\u5bf9PCIe\u975e\u5e38\u719f\u6089\u3002\u6211\u4eec\u7684\u663e\u5361\uff0c\u8fd8\u6709\u65e9\u671f\u7684\u7f51\u5361\u548c\u58f0\u5361\u7b49\uff0c\u90fd\u662f\u63d2\u5728\u8ba1\u7b97\u673a\u4e3b\u677fPCIe\u63d2\u69fd\u4e0a\u5de5\u4f5c\u7684\u3002<\/span><\/span><\/section>\n

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\u540e\u6765\uff0c\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u8ba1\u7b97\u673aCPU\u3001\u5185\u5b58\u3001\u663e\u5361\u7684\u6027\u80fd\u8d8a\u6765\u8d8a\u5f3a\u5927\uff0c\u76f8\u4e92\u4e4b\u95f4\u4f20\u8f93\u7684\u6570\u636e\u91cf\u4e5f\u8d8a\u6765\u8d8a\u591a\uff0cPCIe\u7684\u80fd\u529b\u5f00\u59cb\u51fa\u73b0\u74f6\u9888\uff08\u5c3d\u7ba1\u8fd9\u4e2a\u6280\u672f\u4e5f\u5728\u8fed\u4ee3\uff09\uff0c\u4f20\u8f93\u901f\u7387\u548c\u65f6\u5ef6\u9010\u6e10\u65e0\u6cd5\u6ee1\u8db3\u9700\u6c42\u3002<\/span><\/span><\/section>\n

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\u8868\u73b0\u6700\u7a81\u51fa\u7684\uff0c\u662f\u663e\u5361\uff08GPU\uff09\u7684\u901a\u4fe1\u9700\u6c42\u3002<\/span><\/span><\/section>\n

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\u672c\u4e16\u7eaa\u521d\uff0c\u6e38\u620f\u4ea7\u4e1a\u53d1\u5c55\u8fc5\u901f\uff0c\u663e\u5361\u7684\u5347\u7ea7\u8fed\u4ee3\u4e5f\u5f88\u5feb\u3002\u5f53\u65f6\uff0c\u4e3a\u4e86\u8ba9\u6e38\u620f\u4f53\u9a8c\u66f4\u52a0\u6d41\u7545\uff0c\u751a\u81f3\u51fa\u73b0\u4e86\u540c\u65f6\u5b89\u88c52\u5757\u663e\u5361\u7684\u60c5\u51b5\u3002<\/span><\/span><\/section>\n

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AMD\uff082006\u5e74\u6536\u8d2d\u4e86ATI\uff09\u90a3\u8fb9\uff0c\u628a\u8fd9\u79cd\u591a\u663e\u5361\u6280\u672f\u53eb\u505a<\/span><\/span>Crossfire\uff08\u4ea4\u706b\uff09\u3002<\/span><\/span><\/section>\n

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\u800c\u82f1\u4f1f\u8fbe\u8fd9\u8fb9\uff0c\u5219\u53eb\u505a<\/span><\/span>SLI\uff08<\/span><\/span>Scalable Link Interface\uff0c<\/span><\/span>\u53ef\u5347\u7ea7\u8fde\u63a5\u754c\u9762\uff0c\u4e5f\u53eb<\/span><\/span>\u201c\u901f\u529b<\/span><\/span>\u201d\uff0c2007\u5e74\u63a8\u51fa\uff09\u3002<\/span><\/span><\/section>\n

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\u9664\u4e86\u4e2a\u4eba\u6d88\u8d39\u9886\u57df\u4e4b\u5916\uff0c\u79d1\u7814\u9886\u57df\u5bf9\u663e\u5361\u6027\u80fd\u7684\u9700\u6c42\u4e5f\u4e0d\u65ad\u589e\u52a0\u3002<\/span><\/span><\/section>\n

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\u79d1\u5b66\u5bb6\u4eec\u4f7f\u7528\u663e\u5361\uff0c\u4e0d\u662f\u4e3a\u4e86\u73a9\u6e38\u620f\uff0c\u800c\u662f\u4e3a\u4e863D\u5efa\u6a21\uff0c\u4ee5\u53ca\u6267\u884c\u4e00\u4e9b\u8d85\u7b97\u4efb\u52a1\u3002<\/span><\/span><\/section>\n

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\u82f1\u4f1f\u8fbe\u5728\u4e0d\u65ad\u63d0\u5347\u663e\u5361\u6027\u80fd\u7684\u540c\u65f6\uff0c\u53d1\u73b0PCIe\u534f\u8bae\u4e25\u91cd\u9650\u5236\u4e86\u663e\u5361\u7684\u5bf9\u5916\u6570\u636e\u4f20\u8f93\u3002\u4e8e\u662f\uff0c\u4ed6\u4eec\u5f00\u59cb\u8003\u8651\u81ea\u521b\u4e00\u5957\u4f53\u7cfb\uff0c\u7528\u4e8e\u53d6\u4ee3PCIe\u534f\u8bae\u3002<\/span><\/span><\/section>\n

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2014\u5e74\uff0c\u82f1\u4f1f\u8fbe\u57fa\u4e8eSLI\u6280\u672f\uff0c\u63a8\u51fa\u4e86\u7528\u4e8eGPU\u9ad8\u901f\u4e92\u8fde\u7684\u65b0\u534f\u8bae\u2014\u2014NVLink\uff08Nvidia Link\uff09\u3002<\/span><\/span><\/section>\n

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\u82f1\u4f1f\u8fbe<\/span><\/span>NVLink\u6280\u672f\u7684\u65e9\u671f\u5408\u4f5c\u5bf9\u8c61\uff0c\u662fIBM\u3002<\/span><\/span><\/section>\n

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\u4e3a\u4ec0\u4e48\u4e0d\u662f\u82f1\u7279\u5c14\u6216AMD\u5462\uff1f\u56e0\u4e3aPCIe\u662f\u82f1\u7279\u5c14\u7275\u5934\u641e\u7684\uff0c\u4e0d\u592a\u60f3\u641e<\/span><\/span>NVLink\u3002AMD\u7b97\u662f\u82f1\u4f1f\u8fbe\u7ade\u4e89\u5bf9\u624b\uff0c\u4e5f\u4e0d\u5408\u9002\u3002<\/span><\/span><\/section>\n

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\u5f53\u65f6\uff0cIBM\u662f\u8d85\u7b97\u9886\u57df\u7684\u5de8\u5934\uff0c\u800c\u4e14\u5728\u6280\u672f\u53c2\u6570\u4e0a\u548c\u82f1\u4f1f\u8fbe\u975e\u5e38\u5339\u914d\uff0c\u6240\u4ee5\u53cc\u65b9\u8fdb\u884c\u4e86\u5408\u4f5c\u3002<\/span><\/span><\/section>\n

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\u82f1\u4f1f\u8fbe\u5728\u53d1\u5e03NVLink\u65f6\u6307\u51fa\uff1a<\/span><\/span><\/section>\n

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GPU\u663e\u5b58\u7684\u901f\u5ea6\u5feb\u4f46\u5bb9\u91cf\u5c0f\uff0cCPU\u5185\u5b58\u7684\u901f\u5ea6\u6162\u4f46\u5bb9\u91cf\u5927\u3002\u56e0\u4e3a\u5185\u5b58\u7cfb\u7edf\u7684\u5dee\u5f02\uff0c\u52a0\u901f\u7684\u8ba1\u7b97\u5e94\u7528\u4e00\u822c\u5148\u628a\u6570\u636e\u4ece\u7f51\u7edc\u6216\u78c1\u76d8\u79fb\u81f3CPU\u5185\u5b58\uff0c\u7136\u540e\u518d\u590d\u5236\u5230GPU\u663e\u5b58\uff0c\u6570\u636e\u624d\u53ef\u4ee5\u88abGPU\u5904\u7406\u3002<\/span><\/span><\/section>\n

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\u5728NVLink\u6280\u672f\u51fa\u73b0\u4e4b\u524d\uff0c<\/span><\/span>GPU\u9700\u8981\u901a\u8fc7PCIe\u63a5\u53e3\u8fde\u63a5\u81f3CPU\uff0c\u4f46PCIe\u63a5\u53e3\u592a\u843d\u540e\uff0c\u9650\u5236\u4e86GPU\u5b58\u53d6CPU\u7cfb\u7edf\u5185\u5b58\u7684\u80fd\u529b\uff0c\u5bf9\u6bd4CPU\u5185\u5b58\u7cfb\u7edf\u8981\u61624-5\u500d\u3002<\/span><\/span><\/section>\n

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\u6709\u4e86<\/span><\/span>NVLink\u4e4b\u540e\uff0c<\/span><\/span>NVLink\u63a5\u53e3\u53ef\u4ee5\u548c\u4e00\u822cCPU\u5185\u5b58\u7cfb\u7edf\u7684\u5e26\u5bbd\u76f8\u5339\u914d\uff0c\u8ba9GPU\u4ee5\u5168\u5e26\u5bbd\u7684\u901f\u5ea6\u5b58\u53d6CPU\u5185\u5b58\uff0c\u89e3\u51b3\u4e86CPU\u548cGPU\u4e4b\u95f4\u7684\u4e92\u8054\u5e26\u5bbd\u95ee\u9898\uff0c\u4ece\u800c\u5927\u5e45\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\u3002<\/span><\/span><\/section>\n

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IBM POWER CPU\u7684\u5e26\u5bbd\u9ad8\u4e8ex86 CPU\uff0cPCIe\u74f6\u9888\u6548\u5e94\u66f4\u4e3a\u660e\u663e\uff0c\u6240\u4ee5\uff0c\u4ed6\u4eec\u624d\u975e\u5e38\u79ef\u6781\u60f3\u8981\u548c\u82f1\u4f1f\u8fbe\u5408\u4f5c\u3002<\/span><\/span><\/section>\n

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\u5728GTC2014\u4e0a\uff0c\u82f1\u4f1f\u8fbeCEO\u9ec4\u4ec1\u52cb\u5bf9<\/span><\/span>NVLink\u8d5e\u4e0d\u7edd\u53e3\u3002\u4ed6\u8868\u793a\uff1a\u201c<\/span><\/span>NVLink\u8ba9 GPU\u4e0eCPU\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u7684\u901f\u5ea6\u5feb\u4e865-12\u500d\u3002\u8fd9\u4e0d\u4ec5\u662f\u5168\u7403\u9996\u4f8b\u9ad8\u901fGPU\u4e92\u8054\u6280\u672f\uff0c\u4e5f\u4e3a\u767e\u4ebf\u4ebf\u6b21\u7ea7\u8ba1\u7b97\u94fa\u5e73\u4e86\u9053\u8def\u3002\u201d<\/span><\/span><\/section>\n

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GTC2014<\/span><\/span><\/section>\n

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2014\u5e74\u5e74\u5e95\uff0c\u7f8e\u56fd\u80fd\u6e90\u90e8\u5ba3\u5e03\u5c06\u7531IBM\u548c\u82f1\u4f1f\u8fbe\u5171\u540c\u5efa\u9020\u4e24\u53f0\u65b0\u7684\u65d7\u8230\u8d85\u7ea7\u8ba1\u7b97\u673a\uff0c\u5206\u522b\u662f\u6a61\u6811\u5cad\u56fd\u5bb6\u5b9e\u9a8c\u5ba4\u7684Summit\u7cfb\u7edf\u548c\u52b3\u4f26\u65af\u5229\u5f17\u83ab\u5c14\u56fd\u5bb6\u5b9e\u9a8c\u5ba4\u7684Sierra\u7cfb\u7edf\uff0c\u5f15\u53d1\u884c\u4e1a\u7684\u9ad8\u5ea6\u5173\u6ce8\u3002<\/span><\/span><\/section>\n

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\u800cNVLink\uff0c\u5c31\u662f\u5176\u4e2d\u7684\u5173\u952e\u6280\u672f\uff0c\u7528\u4e8eIBM <\/span><\/span>POWER9 CPU\u4e0e\u82f1\u4f1f\u8fbeGPGPU\uff08<\/span><\/span>\u57fa\u4e8eVolta\u67b6\u6784\uff09\u7684\u8fde\u63a5\u3002\u6839\u636e\u5b98\u65b9\u6570\u636e\uff0c\u5efa\u6210\u7684\u8d85\u7ea7\u8ba1\u7b97\u673a\u7b97\u529b\u9ad8\u8fbe100Pflops\u3002<\/span><\/span><\/section>\n

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\u9664\u4e86\u8d85\u7b97\u4e4b\u5916\uff0c\u5728\u667a\u7b97\u9886\u57df\uff0c<\/span><\/span>NVLink\u4e5f\u8fce\u6765\u4e86\u673a\u9047\u3002<\/span><\/span><\/section>\n

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2012\u5e74\uff0cAI\u5927\u4f6c<\/span><\/span>\u6770\u5f17\u91cc\u00b7\u8f9b\u987f\u5e26\u7740\u4e24\u4e2a\u5f92\u5f1f\u641e\u51fa\u4e86\u6df1\u5ea6\u5377\u79ef\u795e\u7ecf\u7f51\u7edcAlexNet\uff0c\u8d62\u5f97ImageNet\u56fe\u50cf\u8bc6\u522b\u5927\u8d5b\uff0c\u5f7b\u5e95\u70b9\u7206\u4e86\u7528GPU\u8fdb\u884cAI\u8ba1\u7b97\u8fd9\u4e2a\u8def\u7ebf\uff0c\u4ece\u800c\u6253\u5f00\u4e86\u65b0\u4e16\u754c\u7684\u5927\u95e8\u3002<\/span><\/span><\/section>\n

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\u5728\u8d85\u7b97\u548c\u667a\u7b97\u53cc\u91cd\u6d6a\u6f6e\u7684\u52a9\u63a8\u4e0b\uff0c\u82f1\u4f1f\u8fbe\u7684GPU\u3001NVLink\u3001CUDA\u7b49\u6280\u672f\uff0c\u5f00\u59cb\u8d70\u5411\u4e86\u5168\u9762\u7206\u53d1\u3002<\/span><\/span><\/section>\n

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\u2588<\/span> <\/span>NVLink\u7684\u6280\u672f\u6f14\u8fdb<\/span><\/span><\/section>\n

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NVLink\u80fd\u591f<\/span><\/span>\u5b9e\u73b0\u66f4\u9ad8\u7684\u901f\u7387\u3001\u66f4\u4f4e\u7684\u65f6\u5ef6\uff0c\u5404\u65b9\u9762\u6027\u80fd\u90fd\u660e\u663e\u5f3a\u4e8e<\/span><\/span>PCle\u3002<\/span><\/span><\/section>\n

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\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u770b\u770b\u5b83\u5230\u5e95\u662f\u4e2a\u4ec0\u4e48\u6837\u7684\u8fde\u63a5\u65b9\u5f0f\u3002<\/span><\/span><\/section>\n

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\u82f1\u4f1f\u8fbeGTC2014\u53d1\u5e03\u7684\u662fNVLink\u7684\u9996\u4e2a\u7248\u672c\u2014\u2014NVLink 1.0\u3002\u57282016\u5e74\uff08GTC2016\uff09\u53d1\u5e03\u7684P100\u82af\u7247\u4e0a\uff0c\u5c31\u642d\u8f7d\u4e86NVLink 1.0\u6280\u672f\u3002<\/span><\/span><\/section>\n

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NVLink\u662f<\/span><\/span>\u4e00\u79cd\u57fa\u4e8e\u9ad8\u901f\u5dee\u5206\u4fe1\u53f7\u7ebf\u7684\u4e32\u884c\u901a\u4fe1\u6280\u672f\u3002<\/span><\/span><\/section>\n

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\u6bcf\u5757P100 GPU\u96c6\u6210\u4e864\u6761NVLink 1.0\u94fe\u8def\u3002<\/span><\/span>\u6bcf\u6761NVLink 1.0\u94fe\u8def\u75318\u5bf9\u5dee\u5206\u7ebf\uff088\u4e2a\u901a\u9053\uff09\u7ec4\u6210\u3002<\/span><\/span><\/section>\n

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NVLink\u94fe\u8def\u548c\u5dee\u5206\u7ebf<\/span><\/span><\/section>\n

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\u6bcf\u5bf9\u5dee\u5206\u7ebf\uff08\u6bcf\u4e2a\u901a\u9053\uff09\u7684\u53cc\u5411\u5e26\u5bbd\u662f5GB\/s\u3002\u6240\u4ee5\uff0c<\/span><\/span>\u6bcf\u6761NVLink 1.0\u94fe\u8def\u7684<\/span><\/span>\u53cc\u5411\u5e26\u5bbd\u662f40GB\/s\u3002<\/span><\/span><\/section>\n

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\u56e0\u6b64\uff0c\u6bcf\u5757<\/span><\/span>P100 GPU\u7684<\/span><\/span>\u603b\u53cc\u5411\u5e26\u5bbd\u53ef\u8fbe160GB\/s<\/span><\/span>\uff0c\u662fPCIe3 x16\uff08\u603b\u5e26\u5bbd\u5927\u7ea632GB\/s\uff09\u7684\u4e94\u500d\u3002<\/span><\/span><\/section>\n

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NVLink\u8fd8\u652f\u6301\u5185\u5b58\u4e00\u81f4\u6027\u548c\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff08DMA\uff09\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u6548\u7387\u548c\u8ba1\u7b97\u6027\u80fd\u3002<\/span><\/span><\/section>\n

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\u8fc4\u4eca\u4e3a\u6b62\uff0c\u82f1\u4f1f\u8fbe\u9646\u7eed\u63a8\u51fa\u4e86<\/span><\/span>NVLink 1.0~5.0\uff0c\u53c2\u6570\u6211\u5c31\u4e0d\u4e00\u4e00\u4ecb\u7ecd\u4e86\uff0c\u53ef\u4ee5\u770b\u4e0b\u9762\u7684\u8868\u683c\uff1a<\/span><\/span><\/section>\n

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NVLink1-4\u4ee3\u9645\uff08\u56fe\u7247\u6765\u81ea\u82f1\u4f1f\u8fbe\u5b98\u7f51\uff09<\/span><\/span><\/section>\n

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\u518d\u6765\u770b\u770b\u62d3\u6251\u7ed3\u6784\u3002<\/span><\/span><\/section>\n

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\u6700\u7b80\u5355\u7684\u4e24\u5f20\u5361\u76f4\u63a5\u4e92\u8fde\uff0c\u5c31\u662f<\/span><\/span>\u6760\u94c3\u62d3\u6251\uff08barbell topology\uff09\u3002<\/span><\/span>\u53ccPCIe GPU\u4e4b\u95f4\uff0c\u53ef\u4ee5\u901a\u8fc7NVLink Bridge\u8bbe\u5907\u5b9e\u73b0\u3002<\/span><\/span><\/section>\n

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\u6760\u94c3\u62d3\u6251<\/span><\/span><\/section>\n

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NVLink Bridge<\/span><\/span><\/section>\n

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\u56db\u5f20GPU\u5361\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528\u5341\u5b57\u4ea4\u53c9\u65b9\u5f62\u62d3\u6251\uff08crisscrossed square topology\uff09\u3002\u8fd9\u662f\u4e00\u79cd<\/span><\/span>Full Mesh\u7684\u7f51\u72b6\u4ea4\u53c9\u4e92\u8054\u7ed3\u6784\u3002<\/span><\/span><\/section>\n

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\u5341\u5b57\u4ea4\u53c9\u65b9\u5f62\u62d3\u6251<\/span><\/span><\/section>\n

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8\u5f20GPU\u5361\uff0c\u5c31\u7a0d\u5fae\u6709\u70b9\u590d\u6742\u4e86\u3002<\/span><\/span><\/section>\n

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\u5728HGX-1\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u4e86\u4e00\u79cd \u201chybrid cube mesh\u201d 8 GPU\u4e92\u8054\u7ed3\u6784\u3002<\/span><\/span>\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/span><\/section>\n

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\u6bcf\u4e00\u5757GPU\u90fd\u5de7\u5999\u5229\u7528\u4e86\u51766\u6761NVLink\uff0c\u4e0e\u5176\u4ed64\u5757GPU\u76f8\u8fde\u30028\u5757GPU\u4ee5\u6709\u9650\u7684NVLink\u6570\u91cf\uff0c\u5b9e\u73b0\u4e86\u6574\u4f53\u7cfb\u7edf\u7684\u6700\u4f73\u6027\u80fd\u3002<\/span><\/span><\/section>\n

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\u8fd9\u4e2a\u56fe\u770b\u4e0a\u53bb\u6709\u70b9\u5947\u602a\u3002\u5b9e\u9645\u4e0a\uff0c\u5982\u679c\u628a\u5b83\u4ee5\u7acb\u4f53\u7684\u65b9\u5f0f\u5448\u73b0\uff0c\u5c31\u5f88\u6e05\u6670\u4e86\uff1a<\/span><\/span><\/section>\n

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\u5c31\u662f\u4e32\u8054\u7684\u67b6\u6784\u3002<\/span><\/span><\/section>\n

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\u5f53\u65f6\u82f1\u4f1f\u8fbe\u53d1\u5e03\u7684\u8d85\u7ea7\u8ba1\u7b97\u673aDGX-1\uff0c\u5c31\u662f\u91c7\u7528\u4e86\u4e0a\u9762\u8fd9\u4e2a\u67b6\u6784\u3002<\/span><\/span><\/section>\n

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2016\u5e74\uff0c\u82f1\u4f1f\u8fbeCEO\u9ec4\u4ec1\u52cb\u7ed9\u521a\u521a\u6210\u7acb\u7684OpenAI\u516c\u53f8\u8d60\u9001\u4e86<\/span><\/span>\u4e16\u754c\u4e0a\u7b2c\u4e00\u53f0DGX-1\u8d85\u7ea7\u8ba1\u7b97\u673a\uff0c\u4ef7\u503c129000\u7f8e\u5143\u3002<\/span><\/span><\/section>\n

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\u8fd9\u53f0DGX-1\u62e5\u67092\u9897Xeon\u5904\u7406\u5668\u548c8\u9897Tesla P100 GPU\uff0c\u6574\u673a\u62e5\u6709170TFLOPs\u7684\u534a\u7cbe\u5ea6\uff08FP16\uff09\u5cf0\u503c\u6027\u80fd\uff0c\u8fd8\u914d\u5907\u4e86512GB\u7cfb\u7edf\u5185\u5b58\u548c128GB GPU\u5185\u5b58\u3002<\/span><\/span><\/section>\n

<\/span><\/section>\n
\u8fd9\u53f0\u673a\u5668\u7ed9OpenAI\u7684\u65e9\u671f\u8d77\u6b65\u63d0\u4f9b\u4e86\u6781\u5927\u5e2e\u52a9\uff0c\u5927\u5e45\u7f29\u77ed\u4e86\u4ed6\u4eec\u7684\u5927\u6a21\u578b\u8bad\u7ec3\u5468\u671f\u3002<\/span><\/span><\/section>\n

<\/span><\/section>\n
Hybrid Cube Mesh\u67b6\u6784\u5b9e\u73b0\u4e86\u5355\u673a\u5185\u76848\u5361\u4e92\u8fde\uff0c\u4f46\u4e5f\u5b58\u5728\u4e00\u4e9b\u4e0d\u8db3\uff1a\u5b83\u5c5e\u4e8e\u4e00\u79cd\u4e32\u884c\u8fde\u63a5\uff0c8\u5757GPU\u4e4b\u95f4\u5e76\u975e\u4e24\u4e24\u4e92\u8054\uff0c\u6bcf\u4e00\u5757GPU\u53ea\u4e0e\u5176\u4ed64\u5757GPU\u76f8\u8fde\uff0c\u4e14\u5b58\u5728\u5e26\u5bbd\u4e0d\u5bf9\u7b49\u7684\u60c5\u51b5\u3002<\/span><\/span><\/section>\n

<\/span><\/section>\n
\u4e8e\u662f\uff0c2018\u5e74\uff0c\u4e3a\u4e86\u5b9e\u73b08\u9897GPU\u4e4b\u95f4\u7684all-to-all\u4e92\u8fde\uff0c\u82f1\u4f1f\u8fbe\u53d1\u5e03\u4e86NVSwitch 1.0\u3002<\/span><\/span><\/section>\n

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NVSwitch<\/span>\uff0c\u8bf4\u767d\u4e86\u5c31\u662f\u201c\u4ea4\u6362\u82af\u7247\u201d\u3002\u5b83\u62e5\u670918\u4e2a\u7aef\u53e3\uff0c\u6bcf\u4e2a\u7aef\u53e3\u7684\u5e26\u5bbd\u662f50GB\/s\uff0c\u53cc\u5411\u603b\u5e26\u5bbd900GB\/s\u3002\u75286\u4e2aNVSWitch\uff0c\u53ef\u4ee5\u5b9e\u73b08\u9897V100\u7684all-to-all\u8fde\u63a5\u3002<\/span><\/span><\/section>\n

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\u5f15\u5165NVSwitch\u7684DGX-2\uff0c\u76f8\u6bd4\u6b64\u524d\u7684DGX-1\uff0c\u63d0\u5347\u4e862.4\u500d\u7684\u6027\u80fd\u3002<\/span><\/span><\/section>\n

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\u5230NVLink 4.0\u7684\u65f6\u5019\uff0cDGX\u7684\u5185\u90e8\u62d3\u6251\u7ed3\u6784\u589e\u52a0\u4e86NVSwitch\u5bf9\u6240\u6709GPU\u7684\u5168\u5411\u76f4\u8fde\uff0cDGX\u5185\u90e8\u7684\u4e92\u8054\u7ed3\u6784\u5f97\u5230\u7b80\u5316\u3002<\/span><\/span><\/span><\/span><\/section>\n

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2022\u5e74\uff0c\u82f1\u4f1f\u8fbe\u5c06\u539f\u672c\u4f4d\u4e8e\u8ba1\u7b97\u673a\u5185\u90e8\u7684NVSwitch\u82af\u7247\u72ec\u7acb\u51fa\u6765\uff0c\u53d8\u6210\u4e86NVLink\u4ea4\u6362\u673a\u3002\u8fd9\u610f\u5473\u7740\uff0c\u4e00\u4e2a\u8ba1\u7b97\u8282\u70b9\u5df2\u7ecf\u4e0d\u518d\u4ec5\u9650\u4e8e1\u53f0\u670d\u52a1\u5668\uff0c\u800c\u662f\u53ef\u4ee5\u7531\u591a\u53f0\u670d\u52a1\u5668\u548c\u7f51\u7edc\u8bbe\u5907\u5171\u540c\u7ec4\u6210\u3002<\/span><\/span><\/span><\/section>\n

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\u76ee\u524d\uff0c<\/span><\/span>NVLink Switch\u5df2\u7ecf\u53d1\u5c55\u52304.0\u7248\u672c\u3002<\/span><\/span><\/span><\/span><\/section>\n

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2022\u5e74\uff0cNVLink 4.0\u53d1\u5e03\u65f6\uff0c\u82f1\u4f1f\u8fbe\u628a\u65e2\u6709\u7684NVLink\u5b9a\u4e49\u4e3a<\/span><\/span>NVLink-network\uff0c\u7136\u540e\u53c8\u4e13\u95e8\u63a8\u51fa\u4e86<\/span>NVLink-C2C<\/span>\uff08Chip to Chip\uff0c\u82af\u7247\u5230\u82af\u7247\u4e4b\u95f4\u7684\u8fde\u63a5\uff09\u3002<\/span><\/span><\/p>\n


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NVLink-C2C\u662f\u677f\u7ea7\u4e92\u8fde\u6280\u672f\u3002\u5b83\u80fd\u591f\u5728\u5355\u4e2a\u5c01\u88c5\u4e2d\uff0c\u5c06\u4e24\u4e2a\u5904\u7406\u5668\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u53d8\u6210\u4e00\u5757\u8d85\u7ea7\u82af\u7247\uff08Superchip\uff09\u3002<\/span><\/span><\/p>\n


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\u4f8b\u5982\uff0c\u82f1\u4f1f\u8fbe\u7684GH200\uff0c\u5c31\u662f\u57fa\u4e8eNVLink-C2C\uff0c\u5c06Grace CPU\u548cHopper GPU\u8fde\u63a5\u6210Grace Hopper\u8d85\u7ea7\u82af\u7247\u3002<\/span><\/span><\/p>\n


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<\/section>\n

Grace Hopper\u5e73\u53f0\u7684\u67b6\u6784<\/span><\/span><\/p>\n


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\u76ee\u524d\u6700\u65b0\u7684NVLink\u4ee3\u9645\uff0c\u662fNVLink 5.0\uff0c\u7531\u82f1\u4f1f\u8fbe\u57282024\u5e74\u4e0eBlackwell\u67b6\u6784\u4e00\u540c\u63a8\u51fa\u3002\u5355GPU\u53ef\u652f\u6301\u591a\u8fbe18\u4e2aNVLink\u94fe\u63a5\u63a5\uff0c\u603b\u5e26\u5bbd\u8fbe\u52301800GB\/s\uff0c\u662f<\/span><\/span>NVLink 4.0\u76842\u500d\uff0c\u662fPCIe 5\u5e26\u5bbd\u768414\u500d\u4ee5\u4e0a\u3002<\/span><\/span><\/p>\n


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\u5177\u4f53\u53c2\u6570\u524d\u9762\u8868\u683c\u6709\uff0c\u5c0f\u67a3\u541b\u5c31\u4e0d\u591a\u8bf4\u4e86\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/section>\n

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\u2588<\/span> <\/span>NVL72\u7684\u6574\u4f53\u67b6\u6784<\/span><\/span><\/section>\n

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\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u91cd\u70b9\u770b\u770b\u57fa\u4e8e<\/span><\/span>NVLink 5.0\u6253\u9020\u7684<\/span><\/span>DGX GB200 NVL72<\/span><\/span>\u8d85\u8282\u70b9<\/span>\u3002\u8fd9\u4e2a\u8d85\u8282\u70b9\u7684\u67b6\u6784\u975e\u5e38\u6709\u4ee3\u8868\u6027\u3002<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/section>\n

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DGX GB200 NVL72\uff0c<\/span><\/span>\u5305\u542b\u4e8618\u4e2aGB200 Compute Tray\uff08\u8ba1\u7b97\u6258\u67b6\uff09\uff0c\u4ee5\u53ca9\u4e2aNVLink-network Switch Tray\uff08\u7f51\u7edc\u4ea4\u6362\u6258\u67b6\uff09\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/span><\/span><\/span><\/section>\n

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\"\u56fe\u7247\"<\/section>\n
NVL72\u673a\u67dc<\/span><\/span><\/section>\n

<\/span><\/span>\u6bcf\u4e2aCompute Tray\u5305\u62ec2\u9897GB200\u8d85\u7ea7\u82af\u7247\u3002\u6bcf<\/span><\/span>\u9897GB200\u8d85\u7ea7\u82af\u7247\u5305\u62ec1\u4e2a<\/span><\/span>Grace CPU\u30012\u4e2a<\/span><\/span>B200 GPU\uff0c<\/span><\/span>\u57fa\u4e8eNVLink-C2C\u6280\u672f\u3002<\/span><\/span>
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\u6240\u4ee5\uff0c\u6574\u4e2a\u673a\u67b6\u5c31\u5305\u62ec\u4e8636\u4e2aGrace CPU\uff0818\u00d72\uff09\uff0c72\u4e2aB200 GPU\uff0818\u00d72\u00d72\uff09\u3002<\/span><\/span><\/span><\/section>\n

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8\u4e2aDGX GB200 NVL72\uff0c\u53c8\u53ef\u4ee5\u7ec4\u6210\u4e00\u4e2a<\/span><\/span>576\u4e2aGPU\u7684SuperPod\u8d85\u8282\u70b9\uff0c<\/span><\/span>\u603b\u5e26\u5bbd\u8d85\u8fc71PB\/s\uff0c\u9ad8\u901f\u5185\u5b58\u9ad8\u8fbe240TB\u3002<\/span><\/span><\/span><\/span><\/span><\/section>\n

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\"\u56fe\u7247\"<\/section>\n

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NVL72\u673a\u67b6\u76849\u4e2a<\/span><\/span>Switch Tray\uff08\u7f51\u7edc\u4ea4\u6362\u6258\u67b6\uff09\uff0c\u5c31\u662f9\u53f0<\/span><\/span>NVLink Switch\u4ea4\u6362\u673a\u3002<\/span><\/span>
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\u6bcf\u53f0NVLink Switch\u4ea4\u6362\u673a\u5305\u62ec2\u9897NVLink Switch4\u82af\u7247\uff0c\u4ea4\u6362\u5e26\u5bbd\u4e3a28.8Tb\/s \u00d7 2\u3002<\/span><\/span><\/section>\n

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<\/section>\n
NVLink Switch<\/span><\/span><\/section>\n

<\/span><\/span><\/span><\/span><\/span><\/span><\/section>\n

NVL72\u91c7\u7528\u9ad8\u901f\u94dc\u8fde\u63a5\u67b6\u6784\u8bbe\u8ba1\u3002<\/span><\/span><\/p>\n


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\u5728\u673a\u67b6\u7684\u80cc\u6846\u4e2d\uff0c\u67094\u7ec4<\/span><\/span>NVLink\u5361\u76d2\uff08<\/span><\/span>NVLink Cartridge\uff09\uff0c\u4e5f\u5c31\u662f<\/span><\/span>\u5b89\u8d39\u8bfaPaladin HD 224G\u8fde\u63a5\u5668\uff08<\/span><\/span>\u6bcf\u4e2a\u8fde\u63a5\u5668\u670972\u4e2a\u5dee\u5206\u5bf9\uff09\uff0c\u8d1f\u8d23\u8ba1\u7b97\u6258\u67b6\u3001\u7f51\u7edc\u6258\u67b6\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002<\/span><\/span><\/p>\n


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\u5728\u8fd9\u4e9b\u8fde\u63a5\u5668\u4e2d\uff0c<\/span><\/span>\u5bb9\u7eb3\u4e865000\u591a\u6839\u8282\u80fd\u540c\u8f74\u94dc\u7f06\uff08<\/span><\/span>NVLink Cables\uff0c\u5e26\u6709\u5185\u7f6e\u4fe1\u53f7\u653e\u5927\u5668\uff09\uff0c\u53ef\u4ee5<\/span><\/span>\u63d0\u4f9b130TB\/s\u7684\u5168\u5bf9\u5168\u603b\u5e26\u5bbd\u548c260TB\/s\u7684\u96c6\u5408\u901a\u4fe1\uff08AllReduce\uff09\u5e26\u5bbd\u3002<\/span><\/span>
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<\/section>\n


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\u529f\u8017\u65b9\u9762\uff0c<\/span><\/span>B200\u5355\u9897\u82af\u7247\u7684\u529f\u80171000W\uff0c1\u9897Grace CPU\u548c2\u9897B200\u7ec4\u6210\u7684\u8d85\u7ea7\u82af\u7247GB200\uff0c\u529f\u8017\u8fbe\u5230\u4e862700W\u3002\u6574\u4e2a<\/span><\/span>DGX GB200 NVL72<\/span><\/span>\u673a\u67b6\uff0c\u529f\u8017\u5927\u7ea6\u662f120kW\uff08\u91cd\u91cf\u5927\u7ea6\u662f1.3\u5428\uff09\u3002<\/span><\/span><\/p>\n


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\u4e3a\u4e86\u786e\u4fdd\u7a33\u5b9a\u7684\u4f9b\u7535\uff0c<\/span><\/span>NVL72\u91c7\u7528\u4e86<\/span><\/span>\u65b0\u7684\u589e\u5f3a\u578b\u5927\u5bb9\u91cf\u6bcd\u7ebf\u6392\u8bbe\u8ba1\u3002\u5347\u7ea7\u540e\u7684\u6bcd\u7ebf\u6392\u5bbd\u5ea6\u4e0e\u73b0\u6709Open Rack Version 3\uff08ORV3\uff09\u6807\u51c6\u76f8\u540c\uff0c\u4f46\u6df1\u5ea6\u66f4\u5927\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u5176\u7535\u6d41\u627f\u8f7d\u80fd\u529b\u3002\u65b0\u8bbe\u8ba1\u652f\u6301\u9ad8\u8fbe1400\u5b89\u57f9\u7684\u7535\u6d41\u6d41\u52a8\uff0c\u662f\u73b0\u884c\u6807\u51c6\u76842\u500d\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

NVL72\u662f\u6db2\u51b7\u673a\u67b6\u5f0f\u7cfb\u7edf\uff0c\u91c7\u7528\u4e86<\/span><\/span>\u589e\u5f3a\u578b\u514d\u5de5\u5177\u5b89\u88c5\uff08\u76f2\u914d\uff09\u6db2\u51b7\u5206\u914d\u7ba1\uff08\u6b67\u7ba1\uff09\u8bbe\u8ba1\uff0c\u4ee5\u53ca<\/span><\/span>\u65b0\u578b\u53ef\u81ea\u52a8\u5bf9\u51c6\u7684\u514d\u5de5\u5177\u5b89\u88c5\uff08\u6d6e\u52a8\u76f2\u914d\uff09\u6258\u76d8\u8fde\u63a5\u3002\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u4f9b120kW\u51b7\u5374\u80fd\u529b\uff0c\u8fd8\u6781\u5927\u5730\u7b80\u5316\u4e86\u5b89\u88c5\u548c\u8fd0\u7ef4\u3002<\/span><\/span><\/span><\/p>\n


<\/span><\/p>\n

\u5bf9\u5916\u8fde\u63a5\u65b9\u9762\uff0cNVL72\u914d\u7f6e\u4e86CX7\u6216CX8\u7f51\u5361\uff0c\u901a\u8fc7400G\u6216800G\u7684IB\u7f51\u7edc\u4e0e\u5916\u90e8\u8fdb\u884cScale Out\u4e92\u8054\uff0c\u5bf9\u5e94\u6bcf\u53f0compute tray\uff08\u8ba1\u7b97\u6258\u67b6\uff09\u62e5\u67092\u4e2aOSFP 800G\u62161.6T\u7aef\u53e3\u3002<\/span><\/span><\/p>\n


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<\/section>\n


<\/span><\/p>\n

\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0cNVL72\u8fd8\u5305\u62ecBlueField-3\u6570\u636e\u5904\u7406\u5355\u5143\uff08DPU\uff09\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e91\u7f51\u7edc\u52a0\u901f\u3001\u53ef\u7ec4\u5408\u5b58\u50a8\u3001\u96f6\u4fe1\u4efb\u5b89\u5168\u548cGPU\u8ba1\u7b97\u5f39\u6027\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u603b\u800c\u8a00\u4e4b\uff0c<\/span><\/span>GB200 NVL72\u786e\u5b9e\u662f\u4e00\u4e2a\u6027\u80fd\u731b\u517d\uff0c\u4e5f\u662f\u6253\u9020\u4e07\u5361\u3001\u5341\u4e07\u5361GPU\u96c6\u7fa4\u7684\u5229\u5668\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u51ed\u501f\u81ea\u8eab\u5f3a\u5927\u7684\u7b97\u529b\uff0c<\/span><\/span>NVL72\u5728\u63a8\u51fa\u5e02\u573a\u540e\uff0c\u5f88\u5feb<\/span><\/span>\u5f15\u53d1\u4e86\u62a2\u8d2d\u70ed\u6f6e\u3002\u5fae\u8f6f\u3001Meta\u7b49\u79d1\u6280\u5de8\u5934\uff0c\u90fd\u8fdb\u884c\u4e86\u75af\u72c2\u91c7\u8d2d\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u636e\u6089\uff0c<\/span><\/span>GB200 NVL72\u670d\u52a1\u5668\u7684\u5e73\u5747\u5355\u4ef7\u7ea6\u4e3a300\u4e07\u7f8e\u5143\uff08\u7ea6\u54082139\u4e07\u5143\u4eba\u6c11\u5e01\uff09\uff0c\u8f83NVL36\u673a\u67dc\u7684\u5e73\u5747\u552e\u4ef7\u9ad8\u51fa66%\u3002\u82f1\u4f1f\u8fbe\u53c8\u53c8\u53c8\u8d5a\u5f97\u76c6\u6ee1\u94b5\u6ee1\u4e86\u3002<\/span><\/span><\/p>\n


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\u2588<\/span> <\/span>\u7ed3\u8bed<\/span><\/span><\/p>\n


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\u597d\u5566\uff0c\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8e\u82f1\u4f1f\u8fbeNVLink\u7684\u4ecb\u7ecd\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u76ee\u524d\uff0cAI\u7b97\u529b\u5efa\u8bbe\u6d6a\u6f6e\u4ecd\u5728\u6301\u7eed\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u9664\u4e86\u82f1\u4f1f\u8fbe\u4e4b\u5916\uff0c\u5305\u62ecAMD\u3001\u534e\u4e3a\u3001\u817e\u8baf\u3001\u963f\u91cc\u7b49\u5728\u5185\u7684\u5f88\u591a\u516c\u53f8\u90fd\u5728\u7814\u7a76\u548c\u63a8\u8fdb\u81ea\u5df1\u7684\u8282\u70b9\u5185\u90e8\u4e92\u8fde\uff08Scale Up\uff09\u6280\u672f\u6807\u51c6\uff0c\u4e5f\u5728\u6253\u9020\u66f4\u5927\u89c4\u6a21\u7684GPU\u96c6\u7fa4\u3002<\/span><\/span><\/p>\n


<\/span><\/p>\n

\u5982\u679c\u5927\u5bb6\u611f\u5174\u8da3\u7684\u8bdd\uff0c\u5c0f\u67a3\u541b\u4f1a\u53e6\u884c\u4ecb\u7ecd\u3002<\/span><\/span><\/p>\n


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\u611f\u8c22\u5927\u5bb6\u7684\u8010\u5fc3\u9605\u8bfb\uff0c\u6211\u4eec\u4e0b\u671f\u518d\u89c1\uff01<\/span><\/span><\/p>\n


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<\/section>\n<\/p>\n

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