<script type="application/ld+json">{"@context":"http://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.simcentric.com/sc/"},{"@type":"ListItem","position":2,"name":"如何诊断并优化网络拥塞","item":"https://www.simcentric.com/sc/america-dedicated-server-sc/how-to-diagnose-and-optimize-network-congestion/"}]}</script> {"id":33974,"date":"2026-08-10T12:01:46","date_gmt":"2026-08-10T04:01:46","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-sc\/how-to-diagnose-and-optimize-network-congestion\/"},"modified":"2026-08-10T12:06:24","modified_gmt":"2026-08-10T04:06:24","slug":"how-to-diagnose-and-optimize-network-congestion","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/sc\/america-dedicated-server-sc\/how-to-diagnose-and-optimize-network-congestion\/","title":{"rendered":"\u5982\u4f55\u8bca\u65ad\u5e76\u4f18\u5316\u7f51\u7edc\u62e5\u585e"},"content":{"rendered":"<p>\u5c11\u91cf\u5f02\u5e38<a href=\"https:\/\/www.simcentric.com\/sc\/japan-dedicated-server-sc\/how-to-choose-the-right-operating-system-for-ai-workloads\/\" target=\"_blank\" rel=\"noopener\">\u5de5\u4f5c\u8d1f\u8f7d<\/a>\u5c31\u53ef\u80fd\u5728\u591a\u8282\u70b9 <a href=\"https:\/\/www.simcentric.com\/sc\/products\/dedicated-server-us\/\" target=\"_blank\" rel=\"noopener\">GPU \u96c6\u7fa4<\/a>\u4e2d\u9020\u6210\u5c3e\u5ef6\u8fdf\u3002\u8fd9\u79cd\u5ef6\u8fdf\u4f1a\u62d6\u6162\u5206\u5e03\u5f0f\u64cd\u4f5c\u4e2d\u7684\u4f5c\u4e1a\u5b8c\u6210\u65f6\u95f4\u3002\u4e8b\u5b9e\u4e0a\uff0c\u7f51\u7edc\u62e5\u585e\u4f1a\u8feb\u4f7f GPU \u5728\u540c\u6b65\u6b65\u9aa4\u671f\u95f4\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\u3002<\/p>\n<blockquote><p>\u4f60\u5fc5\u987b\u90e8\u7f72\u5177\u5907\u9ad8\u5206\u8fa8\u7387\u6d41\u91cf\u9065\u6d4b\u3001\u62d3\u6251\u611f\u77e5\u548c\u4f20\u8f93\u534f\u8bae\u8c03\u4f18\u80fd\u529b\u7684\u9ad8\u6027\u80fd AI \u67b6\u6784\uff0c\u624d\u80fd\u89e3\u51b3\u5fae\u7a81\u53d1\u548c PFC \u6682\u505c\u98ce\u66b4\u95ee\u9898\u3002<\/p><\/blockquote>\n<p>\u6709\u9488\u5bf9\u6027\u7684\u540e\u7aef\u7f51\u7edc\u4f18\u5316\u80fd\u591f\u6062\u590d\u6574\u4e2a\u96c6\u7fa4\u7684\u9ad8\u541e\u5410\u3002\u4e3b\u52a8\u5f0f AI \u7f51\u7edc\u7b56\u7565\u53ef\u6d88\u9664\u73b0\u4ee3\u7f51\u7edc Fabric \u4e2d\u7684\u6d41\u91cf\u74f6\u9888\u3002\u5148\u8fdb\u7684 AI \u7f51\u7edc\u4f9d\u8d56\u6301\u7eed\u7684 Fabric \u76d1\u63a7\u6765\u9632\u6b62\u7f13\u51b2\u533a\u8017\u5c3d\u3002\u6070\u5f53\u7684\u7f51\u7edc\u8bbe\u8ba1\u80fd\u591f\u786e\u4fdd\u5728\u9ad8\u5f3a\u5ea6 AI \u6a21\u578b\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u7ef4\u6301\u8f83\u9ad8\u7684\u7b97\u529b\u5229\u7528\u7387\u3002<\/p>\n<h2><strong>\u8bc6\u522b Fabric \u4e2d\u7f51\u7edc\u62e5\u585e\u7684\u6210\u56e0<\/strong><\/h2>\n<p>\u9ad8\u6027\u80fd AI \u7f51\u7edc\u8981\u6c42\u5bf9\u6240\u6709\u4ea4\u6362\u8282\u70b9\u8fdb\u884c\u6301\u7eed\u7684\u6d41\u91cf\u76d1\u63a7\u3002\u5728\u5206\u5e03\u5f0f\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u540c\u6b65\u5f0f\u96c6\u5408\u901a\u4fe1\u64cd\u4f5c\u4f1a\u7ed9\u96c6\u7fa4 Fabric \u5e26\u6765\u5de8\u5927\u538b\u529b\u3002<\/p>\n<h3>\u5fae\u7a81\u53d1\u3001Incast \u4e0e PFC \u6682\u505c\u98ce\u66b4<\/h3>\n<p>\u540c\u6b65\u5f0f\u96c6\u5408\u901a\u4fe1\u64cd\u4f5c\u4f1a\u5728\u540e\u7aef Fabric \u4e2d\u5f15\u53d1\u7a81\u53d1\u6d41\u91cf\u3002\u5728\u4e00\u6b21\u672c\u5730 AllToAll \u64cd\u4f5c\u4e2d\uff0c\u591a\u4e2a\u5de5\u4f5c\u8282\u70b9\u4f1a\u540c\u65f6\u5411\u540c\u4e00\u4e2a\u63a5\u6536\u8282\u70b9\u53d1\u9001\u6570\u636e\u3002\u8fd9\u79cd Incast \u6a21\u5f0f\u4f1a\u5bfc\u81f4\u7f13\u51b2\u533a\u6025\u5267\u5806\u79ef\uff0c\u5e76\u5e26\u6765\u4e25\u91cd\u4e22\u5305\u3002<\/p>\n<p>\u5f53\u7f13\u51b2\u961f\u5217\u88ab\u586b\u6ee1\u65f6\uff0c\u63a5\u6536\u4fa7\u4ea4\u6362\u673a\u4f1a\u5411\u4e0a\u6e38\u53d1\u9001\u4f18\u5148\u7ea7\u6d41\u91cf\u63a7\u5236\uff08PFC\uff09\u6682\u505c\u5e27\uff0c\u4ee5\u9632\u6b62\u4e22\u5305\u3002\u8fd9\u79cd\u53cd\u538b\u4f1a\u4f7f\u7f51\u7edc\u4e2d\u8be5\u4f18\u5148\u7ea7\u961f\u5217\u4e0a\u7684\u6240\u6709\u6d41\u91cf\u5168\u90e8\u6682\u505c\u3002<\/p>\n<ul>\n<li>\u4e0a\u6e38\u4ea4\u6362\u673a\u4f1a\u5728\u7279\u5b9a\u4f18\u5148\u7ea7\u961f\u5217\u4e0a\u63a5\u6536\u5230 PFC \u6682\u505c\u4fe1\u53f7\u3002<\/li>\n<li>\u4ea4\u6362\u673a\u4f1a\u6682\u505c\u6574\u4e2a\u961f\u5217\uff0c\u4f7f\u62e5\u585e\u6d41\u548c\u672a\u62e5\u585e\u7684\u53d7\u5bb3\u6d41\u540c\u65f6\u505c\u6b62\u3002<\/li>\n<li>\u8fd9\u79cd\u53cd\u538b\u4f1a\u8de8\u8d8a\u591a\u4e2a\u8df3\u70b9\u4f20\u64ad\uff0c\u9020\u6210\u961f\u9996\u963b\u585e\u548c\u4e25\u91cd\u7684\u901f\u7387\u632f\u8361\u3002<\/li>\n<\/ul>\n<p>\u4e0d\u7a33\u5b9a\u7684\u6682\u505c\u5e27\u4f20\u64ad\u4f1a\u5728 Fabric \u4e2d\u5f62\u6210\u62e5\u585e\u6811\u3002\u8fd9\u4e00\u8fc7\u7a0b\u4f1a\u589e\u52a0\u5c3e\u5ef6\u8fdf\uff0c\u5e76\u964d\u4f4e\u6574\u4e2a\u96c6\u7fa4\u7684\u603b\u4f53\u541e\u5410\u91cf\u3002<\/p>\n<h3>CLOS \u4e0e RAIL \u67b6\u6784\u4e2d\u7684\u62d3\u6251\u74f6\u9888<\/h3>\n<p>\u7f51\u7edc\u67b6\u6784\u51b3\u7b56\u4f1a\u76f4\u63a5\u5f71\u54cd\u4f60\u7684 Fabric \u5728\u9762\u5bf9\u9ad8\u5f3a\u5ea6 AI \u5de5\u4f5c\u8d1f\u8f7d\u65f6\u7684\u627f\u8f7d\u80fd\u529b\u3002\u4f20\u7edf CLOS \u7f51\u7edc\u4f9d\u8d56\u7b49\u4ef7\u591a\u8def\u5f84\u8def\u7531\u6765\u5206\u6563\u52a8\u6001\u6d41\u91cf\u9700\u6c42\u3002<\/p>\n<p>\u7136\u800c\uff0c\u6807\u51c6 CLOS \u8bbe\u8ba1\u5728 all-reduce \u64cd\u4f5c\u671f\u95f4\uff0c\u5f80\u5f80\u96be\u4ee5\u5e94\u5bf9\u9759\u6001\u6d41\u7ed1\u5b9a\u548c\u8d1f\u8f7d\u5931\u8861\u95ee\u9898\u3002<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px;\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/> <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\u7f51\u7edc\u8bbe\u8ba1<\/th>\n<th colspan=\"1\" rowspan=\"1\">\u6838\u5fc3\u6d41\u91cf\u5047\u8bbe<\/th>\n<th colspan=\"1\" rowspan=\"1\">\u4e3b\u8981\u7f51\u7edc\u5c40\u9650<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">CLOS \u67b6\u6784<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u5047\u8bbe\u6d41\u91cf\u7531\u5f7c\u6b64\u72ec\u7acb\u3001\u751f\u547d\u5468\u671f\u8f83\u77ed\u7684\u5fae\u670d\u52a1\u6d41\u7ec4\u6210<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u6807\u51c6 ECMP \u8def\u7531\u4f1a\u5bfc\u81f4\u6d41\u78b0\u649e<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">RAIL \u4f18\u5316\u67b6\u6784<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u4e13\u4e3a\u540c\u6b65\u3001\u957f\u6301\u7eed\u65f6\u95f4\u7684\u5927\u8c61\u6d41\u800c\u8bbe\u8ba1<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u8fc7\u8ba2\u9605\u6bd4\u4f1a\u9020\u6210\u74f6\u9888<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>GPU \u96c6\u7fa4\u4e2d\u7684\u6b21\u4f18\u4f5c\u4e1a\u653e\u7f6e\u8fd8\u4f1a\u8fdb\u4e00\u6b65\u6076\u5316\u6574\u4f53\u7f51\u7edc\u6027\u80fd\u3002\u7cdf\u7cd5\u7684\u8c03\u5ea6\u5668\u51b3\u7b56\u4f1a\u89e6\u53d1\u5c40\u90e8\u53f6\u4ea4\u6362\u673a\u74f6\u9888\uff0c\u4ece\u800c\u589e\u52a0\u603b\u4f5c\u4e1a\u5b8c\u6210\u65f6\u95f4\u3002<\/p>\n<h2><strong>\u9762\u5411 AI \u6a21\u578b\u8bad\u7ec3\u7684\u9065\u6d4b\u7b56\u7565<\/strong><\/h2>\n<p>\u73b0\u4ee3\u96c6\u7fa4\u67b6\u6784\u9700\u8981\u9ad8\u5206\u8fa8\u7387\u6d41\u91cf\u9065\u6d4b\uff0c\u624d\u80fd\u89c2\u6d4b\u540e\u7aef Fabric \u7684\u6027\u80fd\u3002\u4f60\u5fc5\u987b\u76d1\u63a7\u5b9e\u65f6\u7f51\u7edc\u72b6\u6001\uff0c\u624d\u80fd\u7ef4\u6301\u53ef\u9760\u7684 AI \u7f51\u7edc\u73af\u5883\u3002<\/p>\n<h3>\u5b9e\u65f6\u9065\u6d4b\u4e0e\u5e26\u5185\u6d41\u91cf\u76d1\u63a7<\/h3>\n<p>\u5728 AI \u6a21\u578b\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u4f60\u9700\u8981\u5bf9\u4ea4\u6362\u673a\u7f13\u51b2\u533a\u548c\u6570\u636e\u5305\u6807\u8bb0\u8fdb\u884c\u7cbe\u786e\u53ef\u89c6\u5316\u3002\u9ad8\u6027\u80fd\u4ea4\u6362\u786c\u4ef6\u501f\u52a9\u786c\u4ef6\u52a0\u901f\u5904\u7406\uff0c\u5728\u540e\u7aef Fabric \u4e2d\u6d41\u5f0f\u4f20\u8f93\u5b9e\u65f6\u6570\u636e\u3002\u5148\u8fdb\u7684\u91c7\u96c6\u5668\u7f51\u7edc\u4f1a\u8ddf\u8e2a\u7cfb\u7edf\u4fe1\u53f7\uff0c\u4ee5\u7ef4\u6301 Fabric \u5065\u5eb7\u72b6\u6001\u3002<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/> <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\"><strong>KPI \u540d\u79f0<\/strong><\/th>\n<th colspan=\"1\" rowspan=\"1\"><strong>\u8bf4\u660e\u4e0e\u8fd0\u7ef4\u610f\u4e49<\/strong><\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>ECN \u6807\u8bb0\u6bd4\u7387<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7528\u4e8e\u8861\u91cf\u88ab\u6807\u8bb0 CE \u7801\u70b9\u7684\u6570\u636e\u5305\u6bd4\u4f8b\uff0c\u4ee5\u68c0\u6d4b\u6301\u7eed\u6027\u62e5\u585e\u3002<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>PFC \u4e8b\u4ef6\u901f\u7387<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7528\u4e8e\u8ddf\u8e2a\u6d41\u63a7\u6682\u505c\u4fe1\u53f7\uff0c\u9632\u6b62\u4ea4\u6362\u673a\u961f\u5217\u6ea2\u51fa\u3002<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\u7f13\u51b2\u533a\u5360\u7528\u7387\uff08P99\uff09<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7528\u4e8e\u6355\u6349 99 \u5206\u4f4d\u961f\u5217\u5229\u7528\u7387\uff0c\u4ee5\u63ed\u793a\u6781\u7aef\u5185\u5b58\u9971\u548c\u60c5\u51b5\u3002<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\u91cd\u4f20\u7387<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7528\u4e8e\u8bc6\u522b\u786c\u4ef6\u94fe\u8def\u4e0a\u7684\u4e22\u5305\u60c5\u51b5\uff0c\u4ece\u800c\u5b9a\u4f4d\u4f20\u8f93\u9000\u5316\u95ee\u9898\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4f60\u5fc5\u987b\u8ddf\u8e2a\u5173\u952e\u786c\u4ef6\u8ba1\u6570\u5668\uff0c\u5c3d\u65e9\u53d1\u73b0\u6027\u80fd\u4e0b\u964d\u3002\u5e94\u59cb\u7ec8\u4f18\u5148\u5173\u6ce8 Adp Retx \u548c PCI \u8ba1\u6570\u5668\uff0c\u4ee5\u5b9a\u4f4d\u5e38\u89c1\u74f6\u9888\u3002\u6807\u51c6\u7f51\u7edc\u6846\u67b6\u4f1a\u5728\u8fb9\u7f18\u4fa7\u90e8\u7f72\u81ea\u9002\u5e94\u91c7\u6837\u4e0e\u538b\u7f29\u3002\u8fd9\u9879\u6280\u672f\u53ef\u5728\u4fdd\u6301\u5b8c\u6574\u7cbe\u5ea6\u7684\u540c\u65f6\uff0c\u5c06\u9065\u6d4b\u6570\u636e\u603b\u91cf\u6700\u591a\u51cf\u5c11 80%\u3002<\/p>\n<p>\u9ad8\u5206\u8fa8\u7387\u91c7\u96c6\u5668\u4f1a\u6355\u83b7\u8fd0\u7ef4\u6570\u636e\uff0c\u4ee5\u6539\u8fdb\u6574\u4f53\u7f51\u7edc\u8bbe\u8ba1\u3002\u5206\u5e03\u5f0f\u91c7\u96c6\u5668\u4f1a\u5206\u6790\u6d41\u91cf\u6d41\u5411\uff0c\u4fdd\u62a4\u540e\u7aef\u7f51\u7edc\u7a33\u5b9a\u6027\u3002\u4f60\u5e94\u8bc4\u4f30\u6d3b\u8dc3\u4ea4\u6362\u673a\u4e0a\u7684\u5ef6\u8fdf\u6307\u6807\uff0c\u4ee5\u6d4b\u91cf\u8def\u5f84\u65f6\u5ef6\u3002\u8ddf\u8e2a\u5ef6\u8fdf\u6307\u6807\u80fd\u4e3a\u6301\u7eed\u4f18\u5316\u63d0\u4f9b\u6e05\u6670\u7684\u8fd0\u7ef4\u53cd\u9988\u3002\u9ad8\u541e\u5410\u8981\u6c42\u6bcf\u4e00\u6761 Fabric \u8def\u5f84\u90fd\u5177\u5907\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<h3>\u9762\u5411\u62e5\u585e\u7684\u65f6\u5e8f\u5f02\u5e38\u68c0\u6d4b<\/h3>\n<p>\u4e3b\u52a8\u5f0f\u9065\u6d4b\u7cfb\u7edf\u53ef\u5728\u7f13\u51b2\u961f\u5217\u6ea2\u51fa\u524d\u9632\u6b62\u7f51\u7edc\u62e5\u585e\u3002\u4f60\u53ef\u4ee5\u90e8\u7f72 LSTM \u548c 1D-CNN \u7b49\u6df1\u5ea6\u5b66\u4e60\u65f6\u5e8f\u6a21\u578b\u6765\u5904\u7406\u8fde\u7eed\u7684\u6307\u6807\u6d41\u3002Autoformer\u3001Informer \u548c TimesNet \u7b49\u5148\u8fdb Transformer \u67b6\u6784\u53ef\u5728\u52a8\u6001\u8bad\u7ec3\u9636\u6bb5\u9884\u6d4b\u6d41\u91cf\u8d8b\u52bf\u3002\u73b0\u4ee3\u8fd0\u7ef4\u4f53\u7cfb\u8fd8\u4f1a\u5229\u7528 MOMENT \u8fd9\u7c7b\u901a\u7528\u65f6\u5e8f\u57fa\u7840\u6a21\u578b\u6765\u68c0\u6d4b\u7ec6\u5fae\u7684\u8fd0\u884c\u5f02\u5e38\u3002<\/p>\n<blockquote><p>\u4e00\u4e2a\u57fa\u4e8e 18 \u4e2a\u6708\u8c03\u5ea6\u5386\u53f2\u8bad\u7ec3\u5f97\u5230\u7684\u65f6\u5e8f\u6a21\u5f0f\u5f15\u64ce\uff0c\u53ef\u5728\u9700\u6c42\u9ad8\u5cf0\u771f\u6b63\u51fa\u73b0\u524d 2 \u5230 8 \u5206\u949f\u9884\u6d4b\u7b97\u529b\u9700\u6c42\uff0c\u5e76\u9884\u5148\u653e\u7f6e\u5f20\u91cf\u5206\u7247\u3002<\/p><\/blockquote>\n<p>\u8fd9\u79cd\u9884\u6d4b\u6027\u64cd\u4f5c\u53ef\u6d88\u9664\u5927\u578b\u96c6\u7fa4\u4e2d\u7684\u7b97\u529b\u95f2\u7f6e\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u96c6\u7fa4\u6bcf\u5468\u4f1a\u56e0\u88ab\u52a8\u8c03\u5ea6\u5ef6\u8fdf\u800c\u635f\u5931\u6570\u5343 GPU \u5c0f\u65f6\u3002\u8be5\u9065\u6d4b\u6846\u67b6\u4ee5 100 \u6beb\u79d2\u95f4\u9694\u6301\u7eed\u91c7\u96c6\u6570\u636e\u3002<\/p>\n<ul>\n<li>\u6bcf 100 \u6beb\u79d2\u91c7\u96c6\u4e00\u6b21 GPU \u6e29\u5ea6\u3001\u5185\u5b58\u538b\u529b\u3001NVLink \u5229\u7528\u7387\u548c\u4f5c\u4e1a\u961f\u5217\u6df1\u5ea6\u3002<\/li>\n<li>\u4f7f\u7528 Prometheus \u7684 <code>rate()<\/code> \u51fd\u6570\u6765\u8ba1\u7b97\u91cd\u4f20\u7387\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4f7f\u7528\u539f\u59cb\u8ba1\u6570\u5668\u503c\u3002<\/li>\n<li>\u5c06\u91cd\u4f20\u5cf0\u503c\u4e0e NCCL \u6027\u80fd\u6307\u6807\u76f4\u63a5\u5173\u8054\uff0c\u4ee5\u786e\u8ba4\u662f\u5426\u5b58\u5728\u4e22\u5305\u3002<\/li>\n<li>\u4e3a\u9ad8\u5f80\u8fd4\u65f6\u5ef6\u3001TLP \u9519\u8bef\u548c\u94fe\u8def\u9000\u5316\u8bbe\u7f6e\u5173\u952e\u544a\u8b66\u3002<\/li>\n<\/ul>\n<p>\u4e3b\u52a8\u9884\u6d4b\u80fd\u591f\u5728\u91cd\u5ea6\u96c6\u5408\u901a\u4fe1\u671f\u95f4\u7ef4\u6301\u9ad8\u6548\u7684 AI \u7f51\u7edc\u6807\u51c6\u3002\u667a\u80fd\u5f02\u5e38\u68c0\u6d4b\u53ef\u5c06\u540e\u7aef\u7f51\u7edc\u8f6c\u5316\u4e3a\u5177\u5907\u97e7\u6027\u7684 Fabric\u3002\u6070\u5f53\u7684\u6570\u636e\u6444\u53d6\u80fd\u591f\u5f3a\u5316\u5927\u578b\u7b97\u529b\u96c6\u7fa4\u4e2d\u7684\u7a33\u5065\u7f51\u7edc\u8fd0\u7ef4\u3002\u667a\u80fd\u9065\u6d4b\u7b56\u7565\u901a\u8fc7\u4fdd\u62a4\u6d3b\u8dc3\u4f5c\u4e1a\u514d\u53d7\u7f13\u51b2\u533a\u8017\u5c3d\u5f71\u54cd\uff0c\u589e\u5f3a\u4f01\u4e1a\u7ea7 AI \u7f51\u7edc\u67b6\u6784\u3002\u7ec6\u81f4\u7684\u76d1\u63a7\u53ef\u5728\u9ad8\u8d1f\u8f7d\u4e0b\u4fdd\u969c\u7a33\u5b9a\u7684\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n<h2><strong>\u9488\u5bf9 AI \u8bad\u7ec3\u5de5\u4f5c\u8d1f\u8f7d\u4f18\u5316 Fabric<\/strong><\/h2>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u6821\u51c6\u4f20\u8f93\u534f\u8bae\u5e76\u4f18\u5316\u540e\u7aef\u57fa\u7840\u8bbe\u65bd\u4e2d\u7684\u4f5c\u4e1a\u8c03\u5ea6\u6765\u6d88\u9664 Fabric \u74f6\u9888\u3002\u660e\u667a\u7684\u5de5\u7a0b\u51b3\u7b56\u4f1a\u76f4\u63a5\u63d0\u5347\u5927\u89c4\u6a21\u96c6\u7fa4\u8fd0\u884c\u671f\u95f4\u7684\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n<h3>\u4f20\u8f93\u534f\u8bae\u4e0e DCQCN \u53c2\u6570\u8c03\u4f18<\/h3>\n<p>\u6570\u636e\u4e2d\u5fc3\u91cf\u5316\u62e5\u585e\u901a\u77e5\uff08DCQCN\uff09\u7528\u4e8e\u63a7\u5236 RoCEv2 \u7f51\u7edc\u4e2d\u7684\u62e5\u585e\u3002\u5728\u9ad8\u5f3a\u5ea6\u64cd\u4f5c\u671f\u95f4\uff0c\u4f60\u5fc5\u987b\u8c03\u6574 DCQCN \u53c2\u6570\uff0c\u4ee5\u5728\u7cfb\u7edf\u541e\u5410\u4e0e\u6570\u636e\u5305\u65f6\u5ef6\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002\u5f53\u961f\u5217\u6df1\u5ea6\u8d85\u8fc7\u9608\u503c\u9650\u5236\u65f6\uff0c\u4ea4\u6362\u786c\u4ef6\u4f1a\u4f7f\u7528\u663e\u5f0f\u62e5\u585e\u901a\u77e5\uff08ECN\uff09\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u6807\u8bb0\u3002<\/p>\n<ul>\n<li>\u6839\u636e\u94fe\u8def\u5e26\u5bbd\u548c\u7aef\u53e3\u961f\u5217\u5bb9\u91cf\u8bbe\u7f6e <code>min_kt<\/code> \u4e0e <code>max_kt<\/code> \u7f13\u51b2\u9608\u503c\u3002<\/li>\n<li>\u914d\u7f6e\u76ee\u6807\u901f\u7387\u4e0b\u964d\u53c2\u6570 <code>ai<\/code>\uff0c\u4ee5\u9632\u6b62\u5728\u5fae\u7a81\u53d1\u671f\u95f4\u53d1\u751f\u4e25\u91cd\u6d41\u91cf\u9650\u901f\u3002<\/li>\n<li>\u8c03\u6574\u5b9a\u65f6\u5668\u53c2\u6570 <code>hai<\/code>\uff0c\u4ee5\u4fbf\u5728\u62e5\u585e\u89e3\u9664\u540e\u5feb\u901f\u6062\u590d\u76ee\u6807\u5e26\u5bbd\u3002<\/li>\n<\/ul>\n<p>\u9519\u8bef\u7684\u53c2\u6570\u503c\u4f1a\u5728\u9ad8\u6027\u80fd AI Fabric \u4e2d\u5f15\u53d1\u901f\u7387\u632f\u8361\u3002\u7cbe\u7ec6\u8c03\u4f18\u534f\u8bae\u8bbe\u7f6e\u80fd\u591f\u4e3a\u540c\u6b65\u5f0f GPU \u901a\u4fe1\u6784\u5efa\u53ef\u9760\u7684 AI \u7f51\u7edc\u3002\u6070\u5f53\u7684\u53c2\u6570\u9009\u62e9\u53ef\u4ee5\u5728\u9ad8\u6d41\u91cf\u7a81\u53d1\u4e0b\u7a33\u5b9a\u6838\u5fc3\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u3002\u4f18\u5316\u540e\u7684\u4f20\u8f93\u63a7\u5236\u53ef\u964d\u4f4e\u96c6\u7fa4\u4e2d\u6bcf\u4e2a\u8282\u70b9\u7684\u5c3e\u5ef6\u8fdf\u3002\u73b0\u4ee3\u9ad8\u6027\u80fd\u7f51\u7edc\u53ef\u786e\u4fdd\u590d\u6742\u96c6\u5408\u901a\u4fe1\u6b65\u9aa4\u4e2d\u7684\u5e73\u6ed1\u4f20\u8f93\u3002<\/p>\n<h3>\u81ea\u9002\u5e94\u8def\u7531\u4e0e\u4f5c\u4e1a\u653e\u7f6e\u4f18\u5316<\/h3>\n<p>\u9759\u6001 ECMP \u8def\u7531\u4f1a\u5728 all-to-all \u901a\u4fe1\u671f\u95f4\u9020\u6210\u6570\u636e\u5305\u78b0\u649e\u3002\u81ea\u9002\u5e94\u8def\u7531\u786c\u4ef6\u4f1a\u52a8\u6001\u8bc4\u4f30\u94fe\u8def\u5229\u7528\u7387\u3002\u4ea4\u6362\u673a\u4f1a\u5c06\u6570\u636e\u5305\u55b7\u6d12\u5230\u53ef\u7528\u8def\u5f84\u4e0a\uff0c\u4ee5\u7ef4\u6301\u6700\u4f18 Fabric \u6d41\u52a8\u3002\u8fd9\u79cd\u52a8\u6001\u5206\u5e03\u80fd\u591f\u63d0\u5347\u591a\u5c42\u62d3\u6251\u4e2d\u7684\u6574\u4f53\u7f51\u7edc\u6548\u7387\u3002<\/p>\n<p>\u62d3\u6251\u611f\u77e5\u4f5c\u4e1a\u8c03\u5ea6\u53ef\u901a\u8fc7\u5c06\u76f8\u5173\u8ba1\u7b97\u4efb\u52a1\u805a\u96c6\u653e\u7f6e\uff0c\u907f\u514d\u94fe\u8def\u9971\u548c\u3002\u6070\u5f53\u7684\u653e\u7f6e\u7b56\u7565\u53ef\u4fdd\u62a4\u4f60\u7684\u540e\u7aef\u7f51\u7edc\u73af\u5883\u514d\u53d7\u5c40\u90e8\u62e5\u585e\u5f71\u54cd\u3002\u4e00\u9879\u5b9a\u91cf\u4eff\u771f\u7814\u7a76\u8bc4\u4f30\u4e86\u4e0d\u540c\u653e\u7f6e\u7b56\u7565\u7684\u8fd0\u7ef4\u6536\u76ca\u3002<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px;\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/> <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\u6539\u8fdb\u65b9\u9762<\/th>\n<th colspan=\"1\" rowspan=\"1\">\u5b9a\u91cf\u4eff\u771f\u7814\u7a76\u4e2d\u7684\u8bc1\u636e<\/th>\n<th colspan=\"1\" rowspan=\"1\">\u91cf\u5316\u652f\u6491<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\u63d0\u5347\u7f51\u7edc\u5229\u7528\u7387 \/ \u51cf\u5c11\u788e\u7247\u5316<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7814\u7a76\u663e\u793a\uff0c\u8c03\u5ea6\u5668\u80fd\u591f\u6709\u7b56\u7565\u5730\u5c06\u5c0f\u578b\u4f5c\u4e1a\u653e\u7f6e\u5728 NVLink \u57df\u4e2d\u7684\u7279\u5b9a\u8282\u70b9\u4e0a\u3002<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u70ed\u529b\u56fe\u663e\u793a\uff0c\u5c0f\u4f5c\u4e1a\u88ab\u96c6\u4e2d\u653e\u7f6e\u5728\u6bcf\u4e2a\u57df\u6700\u540e\u4e24\u4e2a\u8282\u70b9\u4e0a\uff0c\u4ee5\u5c3d\u91cf\u51cf\u5c11\u9ad8\u5e26\u5bbd\u7f51\u7edc\u8d44\u6e90\u788e\u7247\u5316\uff0c\u4ece\u800c\u4e3a\u66f4\u5927\u4f5c\u4e1a\u4fdd\u7559\u8d44\u6e90\u3002<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\u5c06\u6027\u80fd\u5f00\u9500\u964d\u81f3\u6700\u4f4e<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7814\u7a76\u5c06\u8fd9\u79cd\u62d3\u6251\u611f\u77e5\u8c03\u5ea6\u5668\u7684\u5360\u7528\u7387\uff08\u53ef\u89c6\u4e3a\u5229\u7528\u7387\u4ee3\u7406\u6307\u6807\uff09\u4e0e\u7406\u8bba\u4e0a\u7684\u6700\u4f18\u3001\u4f46\u4e0d\u5177\u5907\u62d3\u6251\u611f\u77e5\u80fd\u529b\u7684\u8c03\u5ea6\u5668\u8fdb\u884c\u4e86\u6bd4\u8f83\u3002<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u7ed3\u679c\u8868\u660e\uff0c\u5360\u7528\u7387\u5dee\u8ddd\u4ec5\u7ea6\u4e3a 1%\uff08\u56fe 5\uff09\uff0c\u8bc1\u660e\u5373\u4f7f\u907f\u514d\u4e86\u7cdf\u7cd5\u653e\u7f6e\u5e26\u6765\u7684\u6027\u80fd\u635f\u5931\uff0c\u4f9d\u7136\u80fd\u591f\u4fdd\u6301\u5f88\u9ad8\u7684\u5229\u7528\u7387\u3002<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\u652f\u6491\u7814\u7a76\u7684\u89c4\u6a21<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\u76f8\u5173\u8bc1\u636e\u57fa\u4e8e\u4e00\u4e2a\u7ec6\u7c92\u5ea6\u3001\u65f6\u95f4\u52a0\u901f\u7684 Slurm \u4eff\u771f\u6846\u67b6\u3002<\/td>\n<td colspan=\"1\" rowspan=\"1\">\u8be5\u4eff\u771f\u5bf9\u4e00\u4e2a 5,000 \u8282\u70b9\u96c6\u7fa4\u8fdb\u884c\u4e86\u5efa\u6a21\uff0c\u5728 7 \u5929\u65f6\u95f4\u5185\u56de\u653e\u4e86 15,000 \u4e2a\u4f5c\u4e1a\uff0c\u56e0\u800c\u5177\u5907\u7edf\u8ba1\u610f\u4e49\u4e0a\u7684\u663e\u8457\u6027\u548c\u91cf\u5316\u4ef7\u503c\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u667a\u80fd\u653e\u7f6e\u7b97\u6cd5\u53ef\u4ee5\u9694\u79bb\u9ad8\u5f3a\u5ea6\u5de5\u4f5c\u8d1f\u8f7d\uff0c\u4f7f\u8ba1\u7b97\u6838\u5fc3\u4fdd\u6301\u5145\u5206\u6d3b\u8dc3\u3002\u5f53\u8c03\u5ea6\u5668\u80fd\u8ba9\u4f5c\u4e1a\u9700\u6c42\u4e0e\u7269\u7406\u94fe\u8def\u5bb9\u91cf\u76f8\u5339\u914d\u65f6\uff0c\u6574\u4f53 AI \u5de5\u4f5c\u8d1f\u8f7d\u8fd0\u884c\u4f1a\u66f4\u5feb\u3002\u6bcf\u4e00\u79cd\u73b0\u4ee3 AI \u5de5\u4f5c\u8d1f\u8f7d\u90fd\u9700\u8981\u7cbe\u786e\u653e\u7f6e\uff0c\u4ee5\u6700\u5927\u5316\u786c\u4ef6\u56de\u62a5\u3002\u9ad8\u6548\u7684\u4f5c\u4e1a\u5206\u914d\u80fd\u591f\u5f3a\u5316\u73b0\u4ee3\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7684\u7a33\u5065 AI \u7f51\u7edc\u3002\u5148\u8fdb\u8c03\u5ea6\u53ef\u4ee5\u4fdd\u62a4\u4f01\u4e1a\u7ea7 AI \u7f51\u7edc\u90e8\u7f72\uff0c\u907f\u514d\u7a81\u53d1\u901a\u4fe1\u51cf\u901f\u3002\u901a\u8fc7\u5c06\u901a\u4fe1\u6a21\u5f0f\u4e0e\u4ea4\u6362\u8fde\u63a5\u5173\u7cfb\u76f8\u5339\u914d\uff0c\u4f60\u53ef\u4ee5\u4fdd\u7559\u66f4\u591a Fabric \u5bb9\u91cf\u3002\u660e\u667a\u7684\u8c03\u5ea6\u51b3\u7b56\u80fd\u591f\u589e\u5f3a\u4f01\u4e1a\u6570\u636e\u4e2d\u5fc3\u4e2d\u7684\u73b0\u4ee3 AI \u7f51\u7edc\u8fd0\u7ef4\u3002\u901a\u8fc7\u5c06\u81ea\u9002\u5e94\u8def\u7531\u4e0e\u62d3\u6251\u611f\u77e5\u8c03\u5ea6\u7ed3\u5408\u5e94\u7528\u4e8e\u6240\u6709 AI \u8bad\u7ec3\u5de5\u4f5c\u8d1f\u8f7d\uff0c\u4f60\u53ef\u4ee5\u5b9e\u73b0\u7a33\u5b9a\u7684\u96c6\u7fa4\u541e\u5410\u3002\u6709\u6548\u7684 Fabric \u8c03\u4f18\u53ef\u4f7f\u57fa\u7840\u8bbe\u65bd\u66f4\u9002\u914d\u9ad8\u5f3a\u5ea6 AI \u8bad\u7ec3\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n<div class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid; width: 100%; border-top-color: #d1d1d1;\"><\/div>\n<\/div>\n<p>\u901a\u8fc7\u5c06\u6301\u7eed\u9065\u6d4b\u3001\u81ea\u9002\u5e94\u8def\u7531\u548c\u7ecf\u8fc7\u8c03\u4f18\u7684\u4f20\u8f93\u53c2\u6570\u6574\u5408\u8fdb\u4e00\u4e2a\u4e3b\u52a8\u53cd\u9988\u95ed\u73af\uff0c\u4f60\u53ef\u4ee5\u6700\u5927\u5316 GPU 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\u7f51\u7edc\u80fd\u591f\u6784\u5efa\u5177\u5907\u97e7\u6027\u7684\u540e\u7aef Fabric\u3002\u667a\u80fd\u7f51\u7edc\u5b9e\u8df5\u53ef\u4fdd\u62a4\u540e\u7aef\u8282\u70b9\u514d\u53d7\u4e25\u91cd\u74f6\u9888\u5f71\u54cd\u3002\u6070\u5f53\u7684\u7f51\u7edc\u8bbe\u8ba1\u80fd\u591f\u6700\u5927\u5316\u96c6\u7fa4\u4ea7\u51fa\u3002<\/p>\n<h2><strong>\u5e38\u89c1\u95ee\u9898<\/strong><\/h2>\n<h3>\u5728 AI \u6a21\u578b\u8bad\u7ec3\u671f\u95f4\uff0c\u662f\u4ec0\u4e48\u5bfc\u81f4\u4e86 PFC \u6682\u505c\u98ce\u66b4\uff1f<\/h3>\n<p>\u540c\u6b65\u5f0f\u96c6\u5408\u901a\u4fe1\u64cd\u4f5c\u4f1a\u4ea7\u751f\u6d41\u91cf\u5fae\u7a81\u53d1\u548c\u4e25\u91cd\u7684 Incast\u3002\u5f53\u4ea4\u6362\u673a\u961f\u5217\u88ab\u586b\u6ee1\u65f6\uff0c\u63a5\u6536\u4fa7\u4ea4\u6362\u673a\u4f1a\u5411\u4e0a\u6e38\u53d1\u9001 PFC \u6682\u505c\u5e27\u3002\u8fd9\u4e9b\u6682\u505c\u4fe1\u53f7\u4f1a\u8de8\u8d8a\u591a\u4e2a\u8df3\u70b9\u4f20\u64ad\uff0c\u5728\u4f60\u7684\u540e\u7aef Fabric \u4e2d\u9020\u6210\u53cd\u538b\u3001\u961f\u9996\u963b\u585e\u548c\u6682\u505c\u98ce\u66b4\u3002<\/p>\n<h3>\u663e\u5f0f\u62e5\u585e\u901a\u77e5\u5982\u4f55\u7f13\u89e3 Fabric \u62e5\u585e\uff1f<\/h3>\n<p>\u5f53\u4ea4\u6362\u673a\u961f\u5217\u6df1\u5ea6\u8d85\u8fc7\u4f60\u914d\u7f6e\u7684\u9608\u503c\u65f6\uff0c\u663e\u5f0f\u62e5\u585e\u901a\u77e5\u4f1a\u5bf9\u6570\u636e\u5305\u5934\u8fdb\u884c\u6807\u8bb0\u3002\u8be5\u4fe1\u53f7\u80fd\u591f\u53ca\u65e9\u901a\u77e5\u7aef\u4e3b\u673a\u5b58\u5728\u6301\u7eed\u6027\u62e5\u585e\u3002\u56e0\u6b64\uff0c\u7aef\u4e3b\u673a\u4f20\u8f93\u534f\u8bae\u4f1a\u5728\u4e22\u5305\u53d1\u751f\u548c\u7f13\u51b2\u961f\u5217\u6ea2\u51fa\u4e4b\u524d\u5148\u884c\u964d\u4f4e\u53d1\u9001\u901f\u7387\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u5728\u540e\u7aef\u7f51\u7edc\u4e2d\u5e94\u4f18\u5148\u9009\u62e9\u81ea\u9002\u5e94\u8def\u7531\uff0c\u800c\u4e0d\u662f\u9759\u6001 ECMP\uff1f<\/h3>\n<p>\u9759\u6001 ECMP 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