{"id":38001,"date":"2025-05-19T13:46:11","date_gmt":"2025-05-19T05:46:11","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38001.html"},"modified":"2025-05-19T13:46:11","modified_gmt":"2025-05-19T05:46:11","slug":"%e5%9f%ba%e4%ba%8e%e5%9b%bd%e4%ba%a7pcie4-0-5-0-switch-%e7%9a%84ai%e6%9c%8d%e5%8a%a1%e5%99%a8pcie%e6%8b%93%e6%89%91%e5%8f%8a12gb-sas-expander%e5%a4%9a%e7%9b%98%e4%bd%8d%e8%83%8c%e6%9d%bf%e5%ba%94","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38001.html","title":{"rendered":"\u57fa\u4e8e\u56fd\u4ea7PCIE4.0\/5.0 SWITCH \u7684AI\u670d\u52a1\u5668PCIe\u62d3\u6251\u53ca12Gb SAS Expander\u591a\u76d8\u4f4d\u80cc\u677f\u5e94\u7528\u7814\u7a76\uff08\u4e8c\uff09"},"content":{"rendered":"

2.2 <\/span>
\n \u62d3\u6251\u7279\u6027\u5206\u6790 <\/span> <\/p>\n

BalanceMode<\/span>
\n \u7684\u914d\u7f6e\u5c06 <\/span>
\n GPU <\/span>
\n \u5e73\u5747\u6302\u63a5 \u5728 <\/span>
\n 2 <\/span> <\/p>\n

\u4e2a <\/span>
\n CPU <\/span>
\n \u4e0b<\/span>
\n ,GPU PCIe<\/span>
\n \u603b\u7684\u4e0a\u884c\u5e26\u5bbd\u8f83\u9ad8<\/span>
\n ;Com<\/span> <\/p>\n

monMode<\/span>
\n \u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u80fd\u591f\u6ee1\u8db3 <\/span>
\n GPU <\/span>
\n \u4e4b\u95f4\u70b9\u5bf9 <\/span> <\/p>\n

\u70b9\u7684\u901a\u4fe1<\/span>
\n ,<\/span>
\n \u540c\u65f6\u53ef\u4fdd\u969c\u8db3\u591f\u7684 <\/span>
\n CPU <\/span>
\n \u4e0e <\/span>
\n GPU <\/span>
\n \u4e4b\u95f4 <\/span> <\/p>\n

\u7684<\/span>
\n I\/O <\/span>
\n \u5e26\u5bbd<\/span>
\n ;Cascade Mode<\/span>
\n \u53ea\u6709\u4e00\u6761 <\/span>
\n \u00d716 <\/span>
\n \u94fe\u8def<\/span>
\n , <\/span> <\/p>\n

\u4f46\u7531\u4e8e <\/span>
\n GPU <\/span>
\n \u4e4b\u95f4\u901a\u8fc7 <\/span>
\n PCIeSwitch<\/span>
\n \u4e32\u63a5<\/span>
\n ,<\/span>
\n \u63d0\u5347\u4e86 <\/span> <\/p>\n

\u70b9\u5bf9\u70b9\u7684\u6027\u80fd<\/span>
\n ,<\/span>
\n \u964d\u4f4e\u4e86\u5ef6\u8fdf<\/span>
\n \u3002 <\/span> <\/p>\n

\u5bf9\u4e8e\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u8fd0\u7b97<\/span>
\n ,<\/span>
\n \u56e0 <\/span>
\n GPU <\/span>
\n \u8ba1\u7b97\u9700\u8981\u4f7f\u7528 <\/span> <\/p>\n

\u5904\u7406\u5668\u4e0e\u4e3b\u5185\u5b58<\/span>
\n ,<\/span>
\n \u7531\u4e8e <\/span>
\n Dualroot<\/span>
\n \u7684\u62d3\u6251\u4e0a\u884c\u5e26\u5bbd <\/span> <\/p>\n

\u4e0e\u5185\u5b58\u4f7f\u7528\u7387\u63d0\u5347<\/span>
\n ,<\/span>
\n \u5176\u6027\u80fd\u4f1a\u4f18\u4e8e <\/span>
\n Singleroot<\/span>
\n \u7684 <\/span> <\/p>\n

\u62d3\u6251<\/span>
\n \u3002 <\/span> <\/p>\n

\u5bf9\u4e8e\u6df1\u5ea6\u5b66\u4e60\u63a8\u7406\u6027\u80fd\u6765\u8bf4<\/span>
\n ,<\/span>
\n \u5177\u5907\u5e76\u884c\u8ba1\u7b97\u80fd <\/span> <\/p>\n

\u529b\u7684 <\/span>
\n GPU <\/span>
\n \u53ef\u4ee5\u57fa\u4e8e\u8bad\u7ec3\u8fc7\u7684\u7f51\u7edc\u8fdb\u884c\u6570\u5341\u4ebf\u6b21 <\/span> <\/p>\n

\u7684\u8ba1\u7b97<\/span>
\n ,<\/span>
\n \u4ece\u800c\u5feb\u901f\u8bc6\u522b\u51fa\u5df2\u77e5\u7684\u6a21\u5f0f\u6216\u76ee\u6807<\/span>
\n \u3002<\/span>
\n \u4e0d\u540c <\/span> <\/p>\n

\u62d3\u6251\u4e0b <\/span>
\n GPU <\/span>
\n \u7684\u4e92\u8054\u5173\u7cfb\u4e0d\u540c<\/span>
\n ,GPU <\/span>
\n \u4e4b\u95f4\u7684\u6c9f\u901a\u4f1a <\/span> <\/p>\n

\u5f71\u54cd\u6df1\u5ea6\u5b66\u4e60\u63a8\u7406\u7684\u6574\u4f53\u6027\u80fd<\/span>
\n \u3002<\/span> <\/p>\n

3 <\/span>
\n \u5b9e\u9a8c\u53ca\u7ed3\u679c\u5206\u6790 <\/span> <\/p>\n

3.1 <\/span>
\n \u5b9e\u9a8c\u88c5\u7f6e <\/span> <\/p>\n

\u4e3a\u63a2\u7a76\u5728\u4e0d\u540c\u5e94\u7528\u6761\u4ef6\u4e0b<\/span>
\n 3\u79cd\u62d3\u6251\u7684\u6027\u80fd\u5dee<\/span> <\/p>\n

\u5f02<\/span>
\n ,<\/span>
\n \u5b9e\u9a8c\u4f7f\u7528\u81ea\u7814 <\/span>
\n AI<\/span>
\n \u670d\u52a1\u5668<\/span>
\n (NF5468M5)<\/span>
\n \u642d\u5efa\u673a <\/span> <\/p>\n

\u53f0\u8fdb\u884c\u6d4b\u8bd5<\/span>
\n \u3002<\/span>
\n \u88c5\u7f6e\u4f7f\u7528<\/span>
\n 2<\/span>
\n \u9897 <\/span>
\n CPU,<\/span>
\n \u89c4\u683c\u4e3a<\/span>
\n Intel\u24c7 <\/span> <\/p>\n

Xeon\u24c7 Gold6142,<\/span>
\n \u4e3b\u9891\u4e3a<\/span>
\n 2.60GHz;<\/span>
\n \u4f7f\u7528<\/span>
\n 12<\/span>
\n \u6761 <\/span> <\/p>\n

DDR4<\/span>
\n \u5185\u5b58<\/span>
\n ,<\/span>
\n \u5bb9\u91cf\u4e3a<\/span>
\n 32GB,<\/span>
\n \u4e3b\u9891\u4e3a<\/span>
\n 2666 MHz;<\/span>
\n \u4f7f <\/span> <\/p>\n

\u7528<\/span>
\n 8<\/span>
\n \u9897 <\/span>
\n GPU,<\/span>
\n \u89c4\u683c\u4e3a <\/span>
\n NVIDIA Tesla-V100_32G\u3002 <\/span> <\/p>\n

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

\u5b9e\u9a8c\u7ed3\u679c\u5206\u6790 <\/span> <\/p>\n

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

\u70b9\u5bf9\u70b9\u5e26\u5bbd\u4e0e\u5ef6\u8fdf <\/span> <\/p>\n

\u5bf9\u4e8e <\/span>
\n GPU <\/span>
\n \u7684 <\/span>
\n P2P<\/span>
\n \u6027\u80fd<\/span>
\n ,<\/span>
\n \u53ef\u4ee5\u4f7f\u7528\u5e26\u5bbd\u4e0e\u5ef6\u8fdf <\/span> <\/p>\n

\u6765\u8861\u91cf<\/span>
\n \u3002PCIe3.0 <\/span>
\n \u7684\u5e26\u5bbd\u4e3a <\/span>
\n 16GB\/s,<\/span>
\n \u7406\u60f3\u72b6\u51b5 <\/span> <\/p>\n

\u4e0b<\/span>
\n ,<\/span>
\n \u5b9e\u9645\u5e94\u7528\u4e2d\u5e26\u5bbd\u53ef\u4ee5\u8fbe\u5230\u7406\u8bba\u5e26\u5bbd\u7684<\/span>
\n 80%<\/span>
\n \u5de6 <\/span> <\/p>\n

\u53f3<\/span>
\n \u3002PCIe<\/span>
\n \u7684\u5ef6\u8fdf\u4e3b\u8981\u53d6\u51b3\u4e8e <\/span>
\n PCIeTrace<\/span>
\n \u7684\u957f\u5ea6<\/span>
\n \u3001 <\/span> <\/p>\n

\u8d70\u7ebf\u8def\u5f84 \u4e0a \u7684 \u5668 \u4ef6 \u53ca \u662f \u5426 \u7ecf \u8fc7 <\/span>
\n UPI\u3001<\/span>
\n \u662f \u5426 \u8de8 <\/span>
\n RC <\/span> <\/p>\n

(RootComplex)<\/span>
\n \u7b49<\/span>
\n \u3002 <\/span> <\/p>\n

\u5982\u56fe<\/span>
\n 4<\/span>
\n \u6240\u793a<\/span>
\n ,<\/span>
\n \u5728 <\/span>
\n BalanceMode\u3001CascadeMode <\/span> <\/p>\n

\u548c <\/span>
\n CommonMode3<\/span>
\n \u79cd\u62d3\u6251\u4e2d<\/span>
\n ,<\/span>
\n \u5206\u522b\u6d4b\u8bd5\u6302\u5728\u540c\u4e00 <\/span> <\/p>\n

\u4e2a <\/span>
\n PCIeSwitch<\/span>
\n \u4e0b\u7684 <\/span>
\n GPU (<\/span>
\n \u5982\u56fe<\/span>
\n 4<\/span>
\n \u4e2d\u7ebf\u8def<\/span>
\n \u2460)<\/span>
\n \u548c\u8de8 <\/span> <\/p>\n

PCIeSwitch<\/span>
\n \u7684 <\/span>
\n GPU(<\/span>
\n \u5982\u56fe<\/span>
\n 4<\/span>
\n \u4e2d\u7ebf\u8def<\/span>
\n \u2461)<\/span>
\n \u7684\u70b9\u5bf9\u70b9 <\/span> <\/p>\n

\u5e26\u5bbd\u4e0e\u5ef6\u8fdf<\/span>
\n \u3002<\/span>
\n \u6d4b\u8bd5\u7ed3\u679c\u5982\u8868<\/span>
\n 1\u3001<\/span>
\n \u8868<\/span>
\n 2<\/span>
\n \u53ca\u56fe<\/span>
\n 5<\/span>
\n \u6240\u793a<\/span>
\n \u3002<\/span> <\/p>\n

\"\" <\/p>\n

\u5728\u540c\u4e00\u4e2a <\/span>
\n PCIeSwitch<\/span>
\n \u4e0b<\/span>
\n ,<\/span>
\n \u7531\u4e8e <\/span>
\n GPU <\/span>
\n \u4e4b\u95f4\u7684 <\/span> <\/p>\n

\u4f20\u8f93\u8ddd\u79bb\u662f\u4e00\u6837\u7684<\/span>
\n ,<\/span>
\n \u6240\u4ee5\u5728\u70b9\u5bf9\u70b9\u56de\u8def<\/span>
\n \u2460<\/span>
\n \u4e2d<\/span>
\n ,3<\/span>
\n \u79cd <\/span> <\/p>\n

\u62d3\u6251\u7684\u5e26\u5bbd\u4e0e\u5ef6\u8fdf\u7ed3\u679c\u7686\u76f8\u8fd1<\/span>
\n ;<\/span>
\n \u5bf9\u4e8e\u8de8<\/span>
\n PCIeSwitc<\/span> <\/p>\n

\"\" <\/p>\n

\u7684<\/span>
\n 2<\/span>
\n \u9897 <\/span>
\n GPU,<\/span>
\n \u7531\u4e8e <\/span>
\n CPU <\/span>
\n \u95f4\u4e3a<\/span>
\n 3UPILinks,<\/span>
\n \u5176\u4fe1\u53f7 <\/span> <\/p>\n

\u4f20\u8f93\u901f\u5ea6\u8db3\u591f\u5feb<\/span>
\n ,<\/span>
\n \u6240\u4ee5 <\/span>
\n BalanceMode<\/span>
\n \u4e0e <\/span>
\n Common <\/span> <\/p>\n

Mode<\/span>
\n \u7684 \u7ed3 \u679c \u76f8 \u8fd1<\/span>
\n ,<\/span>
\n \u800c \u5bf9 \u4e8e <\/span>
\n Cascade Mode,<\/span>
\n \u7531 \u4e8e <\/span> <\/p>\n

GPU <\/span>
\n \u4e4b\u95f4\u7684\u6c9f\u901a\u53ea\u9700\u7ecf\u8fc7 <\/span>
\n PCIeSwitch,<\/span>
\n \u4f20\u8f93\u8def\u5f84 <\/span> <\/p>\n

\u53d8\u77ed<\/span>
\n ,<\/span>
\n \u5176\u70b9\u5bf9\u70b9\u5ef6\u8fdf\u6027\u80fd\u5f97\u4ee5\u63d0\u5347<\/span>
\n ;<\/span>
\n \u540c\u65f6<\/span>
\n ,<\/span>
\n \u5bf9\u4e8e<\/span>
\n In<\/span> <\/p>\n

telCPU <\/span>
\n \u800c\u8a00<\/span>
\n ,<\/span>
\n \u4e00\u4e2a<\/span>
\n PCIe\u00d716Port<\/span>
\n \u4e3a\u4e00\u4e2a <\/span>
\n RC,<\/span>
\n \u4e0d <\/span> <\/p>\n

\u540c <\/span>
\n RC <\/span>
\n \u4e4b \u95f4 \u7684 \u901a \u4fe1 \u5e26 \u5bbd \u6bd4 \u540c \u4e00 \u4e2a <\/span>
\n RC <\/span>
\n \u4e0b <\/span>
\n PCIe <\/span> <\/p>\n

Switch<\/span>
\n \u4e4b\u95f4\u7684\u901a\u4fe1\u5dee<\/span>
\n ,<\/span>
\n \u6545 <\/span>
\n CascadeMode<\/span>
\n \u7684\u5e26\u5bbd\u4e5f <\/span> <\/p>\n

\u5f97\u4ee5\u63d0\u5347<\/span>
\n \u3002<\/span> <\/p>\n

=========<\/span>12Gb SAS Expander\u591a\u76d8\u4f4d\u80cc\u677f================ <\/p>\n

*\u786c\u76d8\u70ed\u63d2\u62d4\u529f\u80fd;
\n *\u706f\u6001\u652f\u6301\u786c\u76d8\u4e0a\u7535，\u8bfb\u5199，\u62a5\u9519;
\n *SPGIO\u786c\u76d8\u62a5\u9519\u529f\u80fd;
\n *\u786c\u76d8\u5206\u65f6\u542f\u52a8;
\n *\u98ce\u6247\u6e29\u5ea6\u63a7\u5236;
\n * I2C（BMC）; <\/p>\n

\"\" <\/p>\n

\"\" <\/p>\n","protected":false},"excerpt":{"rendered":"

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