{"id":47174,"date":"2025-07-30T06:42:33","date_gmt":"2025-07-29T22:42:33","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47174.html"},"modified":"2025-07-30T06:42:33","modified_gmt":"2025-07-29T22:42:33","slug":"%e3%80%90%e4%ba%ba%e5%b7%a5%e6%99%ba%e8%83%bd%e3%80%91%e5%88%86%e5%b8%83%e5%bc%8f%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0%e4%b8%ad%e5%8f%82%e6%95%b0%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47174.html","title":{"rendered":"\u3010\u4eba\u5de5\u667a\u80fd\u3011\u5206\u5e03\u5f0f\u673a\u5668\u5b66\u4e60\u4e2d\u53c2\u6570\u670d\u52a1\u5668\u7684\u8bbe\u8ba1\u65b9\u6cd5"},"content":{"rendered":"<h2>\u4e00\u3001\u53c2\u6570\u670d\u52a1\u5668\u8bbe\u8ba1\u65b9\u6cd5<\/h2>\n<h3>1.1 \u8bbe\u8ba1\u601d\u60f3<\/h3>\n<\/p>\n<h4>1.1.1\u3001\u8bbe\u8ba1\u539f\u7406\u4e0e\u57fa\u7840\u67b6\u6784\u200b<\/h4>\n<h5>\u200b1. \u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3\u200b<\/h5>\n<ul>\n<li>\u200b\u89d2\u8272\u5206\u79bb\u200b&#xff1a;\n<ul>\n<li>\u200bServer\u8282\u70b9\u200b&#xff1a;\u5b58\u50a8\u5168\u5c40\u53c2\u6570&#xff0c;\u8d1f\u8d23\u68af\u5ea6\u805a\u5408\u4e0e\u53c2\u6570\u66f4\u65b0&#xff08;\u540c\u6b65\/\u5f02\u6b65&#xff09;\u3002<\/li>\n<li>\u200bWorker\u8282\u70b9\u200b&#xff1a;\u6267\u884c\u672c\u5730\u6570\u636e\u8ba1\u7b97&#xff0c;\u751f\u6210\u68af\u5ea6\u5e76\u63a8\u9001\u81f3Server\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u901a\u4fe1\u6a21\u5f0f\u200b&#xff1a;\n<ul>\n<li>\u200bPull\u200b&#xff1a;Worker\u4eceServer\u62c9\u53d6\u6700\u65b0\u53c2\u6570\u3002<\/li>\n<li>\u200bPush\u200b&#xff1a;Worker\u5c06\u68af\u5ea6\u63a8\u9001\u7ed9Server\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. \u901a\u4fe1\u74f6\u9888\u4e0e\u4f18\u5316\u200b<\/h5>\n<ul>\n<li>\u200b\u5355\u70b9\u74f6\u9888\u200b&#xff1a;\u4f20\u7edf\u5355Server\u67b6\u6784\u5728Fan-in&#xff08;\u68af\u5ea6\u63a8\u9001&#xff09;\u548cFan-out&#xff08;\u53c2\u6570\u5206\u53d1&#xff09;\u65f6\u5e26\u5bbd\u53d7\u9650\u3002<\/li>\n<li>\u200b\u5206\u7247\u7b56\u7565\u200b&#xff1a;\u5c06\u53c2\u6570\u6309Key\u5206\u7247\u5b58\u50a8\u4e8e\u591a\u4e2aServer&#xff0c;\u901a\u8fc7\u4e00\u81f4\u6027\u54c8\u5e0c&#xff08;Consistent Hashing&#xff09;\u200b\u52a8\u6001\u5206\u914dKey Range&#xff0c;\u652f\u6301\u8282\u70b9\u52a8\u6001\u6269\u7f29\u5bb9\u3002\n<ul>\n<li>\u200b\u6570\u5b66\u8868\u8fbe\u200b&#xff1a;\u53c2\u6570\u5206\u7247\u5927\u5c0f&#xff1a;\\\\text{Shard Size} &#061; \\\\frac{\\\\text{Total Params}}{N_{\\\\text{Servers}}}<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>1.1.2\u3001\u8f6f\u786c\u4ef6\u534f\u540c\u8bbe\u8ba1\u65b9\u6cd5\u200b<\/h4>\n<h5>\u200b1. \u786c\u4ef6\u8d44\u6e90\u914d\u6bd4\u200b<\/h5>\n<table>\n<tr>\u200b\u786c\u4ef6\u7c7b\u578b\u200b\u200b\u529f\u80fd\u89d2\u8272\u200b\u200b\u914d\u6bd4\u5efa\u8bae\u200b\u200b\u4f18\u5316\u76ee\u6807\u200b<\/tr>\n<tbody>\n<tr>\n<td>\u200bCPU\u200b<\/td>\n<td>\u53c2\u6570\u66f4\u65b0\u3001IO\u8c03\u5ea6<\/td>\n<td>60%-80%\u8282\u70b9<\/td>\n<td>\u9ad8\u5e76\u53d1\u4f4e\u5ef6\u8fdf<\/td>\n<\/tr>\n<tr>\n<td>\u200bGPU\/XPU\u200b<\/td>\n<td>\u8ba1\u7b97\u5bc6\u96c6\u578b\u7b97\u5b50&#xff08;\u5982DNN&#xff09;<\/td>\n<td>20%-40%\u8282\u70b9<\/td>\n<td>\u7b97\u529b\u6700\u5927\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u200bNVMe SSD\u200b<\/td>\n<td>\u51b7\u53c2\u6570\u5b58\u50a8<\/td>\n<td>\u5bb9\u91cf\u22652\u500d\u6a21\u578b\u5927\u5c0f<\/td>\n<td>\u9ad8\u541e\u5410\u4f4e\u5ef6\u8fdf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u200b2. \u5f02\u6784\u8ba1\u7b97\u534f\u540c\u200b<\/h5>\n<ul>\n<li>\u200b\u4efb\u52a1\u62c6\u5206\u200b&#xff1a;\n<ul>\n<li>\u200bCPU\u200b&#xff1a;\u5904\u7406\u7a00\u758f\u7279\u5f81\u66f4\u65b0\u3001\u6570\u636e\u52a0\u8f7d\u3002<\/li>\n<li>\u200bGPU\u200b&#xff1a;\u6267\u884c\u7a20\u5bc6\u77e9\u9635\u8ba1\u7b97&#xff08;\u5982GEMM&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u6d41\u6c34\u7ebf\u673a\u5236\u200b&#xff1a;\n<ul>\n<li>\u200b\u8ba1\u7b97-\u901a\u4fe1\u91cd\u53e0\u200b&#xff1a;Worker\u5728\u8ba1\u7b97\u4e0b\u4e00\u6279\u68af\u5ea6\u65f6&#xff0c;\u5f02\u6b65\u63a8\u9001\u5f53\u524d\u68af\u5ea6\u81f3Server&#xff0c;\u9690\u85cf\u901a\u4fe1\u5ef6\u8fdf4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>1.1.3\u3001\u5206\u5c42\u5b58\u50a8\u7b56\u7565\u200b<\/h4>\n<h5>\u200b1. \u5b58\u50a8\u5c42\u7ea7\u8bbe\u8ba1\u200b<\/h5>\n<p>graph TB<br \/>\n    A[SSD] &#8211;&gt;|\u9884\u53d6| B[\u5185\u5b58]<br \/>\n    B &#8211;&gt;|\u9ad8\u9891\u8bbf\u95ee| C[\u663e\u5b58]<br \/>\n    C &#8211;&gt;|\u5b9e\u65f6\u8ba1\u7b97| D[GPU\u5bc4\u5b58\u5668] <\/p>\n<ul>\n<li>\u200bSSD\u5c42\u200b&#xff1a;\u5b58\u50a8\u5168\u91cf\u53c2\u6570\u5907\u4efd&#xff0c;\u91c7\u7528RAID 0\u9635\u5217\u63d0\u5347\u541e\u5410&#xff08;\u59824\u76d8\u4f4d\u8fbe8GB\/s&#xff09;\u3002<\/li>\n<li>\u200b\u5185\u5b58\u5c42\u200b&#xff1a;\u7f13\u5b58\u70ed\u70b9\u53c2\u6570\u5206\u7247&#xff0c;\u200bLRU\u7b56\u7565\u7ba1\u7406\u7f13\u5b58\u7f6e\u6362\u3002<\/li>\n<li>\u200b\u663e\u5b58\u5c42\u200b&#xff1a;\u4ec5\u4fdd\u7559\u5f53\u524d\u8ba1\u7b97\u6240\u9700\u7684\u53c2\u6570\u5757\u3002<\/li>\n<\/ul>\n<h5>\u200b2. \u6570\u636e\u8c03\u5ea6\u7b97\u6cd5\u200b<\/h5>\n<ul>\n<li>\u200b\u9884\u53d6\u673a\u5236\u200b&#xff1a;\u6839\u636e\u53c2\u6570\u8bbf\u95ee\u6a21\u5f0f\u9884\u6d4b\u4e0b\u4e00\u6279\u9700\u52a0\u8f7d\u7684\u5206\u7247\u3002<\/li>\n<li>\u200b\u5199\u4f18\u5316\u200b&#xff1a;\u68af\u5ea6\u66f4\u65b0\u5f02\u6b65\u6279\u91cf\u843d\u76d8&#xff0c;\u51cf\u5c11I\/O\u6b21\u6570\u3002<\/li>\n<\/ul>\n<hr \/>\n<h4>1.1.4\u3001\u5f02\u6784\u53c2\u6570\u670d\u52a1\u5668\u8bbe\u8ba1\u200b<\/h4>\n<h5>\u200b1. \u4efb\u52a1\u62c6\u5206\u4e0e\u6570\u636e\u5206\u914d\u200b<\/h5>\n<ul>\n<li>\u200b\u8ba1\u7b97\u4efb\u52a1\u62c6\u5206\u200b&#xff1a;\n<ul>\n<li>\u200bCPU Worker\u200b&#xff1a;\u5904\u7406\u6b63\u5219\u5316\u8ba1\u7b97\u3001\u7a00\u758f\u68af\u5ea6\u66f4\u65b0\u3002<\/li>\n<li>\u200bGPU Worker\u200b&#xff1a;\u6267\u884c\u524d\u5411\/\u53cd\u5411\u4f20\u64ad\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u6570\u636e\u5206\u914d\u200b&#xff1a;\n<ul>\n<li>\u200b\u6309\u7279\u5f81\u5206\u7247\u200b&#xff1a;\u7a00\u758f\u7279\u5f81\u5206\u914d\u81f3CPU&#xff0c;\u7a20\u5bc6\u5f20\u91cf\u5206\u914d\u81f3GPU\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. \u5f02\u6b65\u673a\u5236\u4e0e\u6d41\u6c34\u7ebf\u200b<\/h5>\n<ul>\n<li>\u200b\u5ef6\u8fdf\u5bb9\u5fcd\u7b56\u7565\u200b&#xff1a;\n<ul>\n<li>\u200bStale Synchronous Parallel (SSP)\u200b\u200b&#xff1a;\u5141\u8bb8\u6700\u5927\u5ef6\u8fdf\u6b65\u6570s&#xff08;\u5982s&#061;5&#xff09;&#xff0c;\u5e73\u8861\u6536\u655b\u4e0e\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u6d41\u6c34\u7ebf\u4f18\u5316\u200b&#xff1a;\n<ul>\n<li>\u200b\u68af\u5ea6\u8ba1\u7b97 \u2192 \u63a8\u9001 \u2192 \u53c2\u6570\u66f4\u65b0\u200b \u4e09\u9636\u6bb5\u6d41\u6c34&#xff0c;Worker\u8ba1\u7b97\u4e0e\u901a\u4fe1\u5e76\u884c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b3. \u901a\u4fe1\u4f18\u5316\u200b<\/h5>\n<ul>\n<li>\u200b\u534f\u8bae\u9009\u62e9\u200b&#xff1a;\n<ul>\n<li>\u200b\u8282\u70b9\u5185\u200b&#xff1a;NVLink&#xff08;600GB\/s&#xff09;\u6216RDMA&#xff08;\u03bcs\u7ea7\u5ef6\u8fdf&#xff09;\u3002<\/li>\n<li>\u200b\u8de8\u8282\u70b9\u200b&#xff1a;InfiniBand&#xff08;200Gbps&#xff09;\u6216QUIC&#xff08;\u6297\u4e22\u5305&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u68af\u5ea6\u538b\u7f29\u200b&#xff1a;\n<ul>\n<li>\u200b\u91cf\u5316\u200b&#xff1a;FP32 \u2192 FP16\/INT8&#xff0c;\u51cf\u5c1175%\u4f20\u8f93\u91cf\u3002<\/li>\n<li>\u200b\u7a00\u758f\u5316\u200b&#xff1a;\u4ec5\u4f20\u8f93Top-K\u68af\u5ea6&#xff08;k \\\\ll \\\\dim(g)&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b4. \u5bb9\u9519\u65b9\u6cd5\u200b<\/h5>\n<ul>\n<li>\u200b\u68c0\u67e5\u70b9\u673a\u5236\u200b&#xff1a;\n<ul>\n<li>\u5b9a\u671f\u4fdd\u5b58\u53c2\u6570\u5feb\u7167\u81f3SSD&#xff0c;\u6545\u969c\u65f6\u79d2\u7ea7\u6062\u590d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u5197\u4f59\u5907\u4efd\u200b&#xff1a;\n<ul>\n<li>\u53c2\u6570\u5206\u7247\u8de8Server\u590d\u5236&#xff08;\u59823\u526f\u672c&#xff09;&#xff0c;\u901a\u8fc7\u94fe\u5f0f\u590d\u5236&#xff08;Chain Replication&#xff09;\u200b\u4fdd\u8bc1\u4e00\u81f4\u60275\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>1.1.5\u3001\u6027\u80fd\u4f18\u5316\u5b9e\u4f8b\u200b<\/h4>\n<h5>\u200b\u98de\u6868\u5f02\u6784PS\u5b9e\u8df5\u200b<\/h5>\n<ul>\n<li>\u200b\u67b6\u6784\u200b&#xff1a;CPU\u5904\u7406IO\u4e0e\u7a00\u758f\u66f4\u65b0&#xff0c;GPU\u6267\u884cDNN\u8ba1\u7b97\u3002<\/li>\n<li>\u200b\u6548\u679c\u200b&#xff1a;\u5343\u4ebf\u63a8\u8350\u6a21\u578b\u8bad\u7ec3\u901f\u5ea6\u63d0\u534765%&#xff0c;\u8d44\u6e90\u5229\u7528\u7387\u8fbe90%&#043;\u3002<\/li>\n<\/ul>\n<h5>\u200bvs \u4f20\u7edf\u65b9\u6848\u5bf9\u6bd4\u200b<\/h5>\n<table>\n<tr>\u200b\u6307\u6807\u200b\u7eafCPU PS\u7eafGPU PS\u200b\u5f02\u6784PS\u200b<\/tr>\n<tbody>\n<tr>\n<td>\u200b\u541e\u5410\u91cf\u200b<\/td>\n<td>\u9ad8&#xff08;\u5f02\u6b65&#xff09;<\/td>\n<td>\u4f4e&#xff08;IO\u74f6\u9888&#xff09;<\/td>\n<td>\u200b\u6781\u9ad8\u200b<\/td>\n<\/tr>\n<tr>\n<td>\u200b\u786c\u4ef6\u6210\u672c\u200b<\/td>\n<td>\u4f4e<\/td>\n<td>\u9ad8<\/td>\n<td>\u200b\u964d\u4f4e20%~30%\u200b\u200b<\/td>\n<\/tr>\n<tr>\n<td>\u200b\u6269\u5c55\u6027\u200b<\/td>\n<td>\u53d7\u9650<\/td>\n<td>\u53d7\u9650<\/td>\n<td>\u200b\u7075\u6d3b\u6df7\u90e8\u200b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4>\u603b\u7ed3\u4e0e\u516c\u5f0f\u200b<\/h4>\n<li>\n<p>\u200b\u8bbe\u8ba1\u6838\u5fc3\u200b&#xff1a;<\/p>\n<ul>\n<li>\u200b\u5206\u7247\u5b58\u50a8&#043;\u5f02\u6b65\u6d41\u6c34\u7ebf\u200b \u89e3\u51b3\u6269\u5c55\u6027\u4e0e\u5ef6\u8fdf\u95ee\u9898\u3002<\/li>\n<li>\u200b\u5f02\u6784\u8ba1\u7b97&#043;\u5206\u5c42\u5b58\u50a8\u200b \u6700\u5927\u5316\u786c\u4ef6\u5229\u7528\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u200b\u5173\u952e\u516c\u5f0f\u200b&#xff1a;<\/p>\n<ul>\n<li>\u200b\u901a\u4fe1\u5f00\u9500\u200b&#xff1a;T_{\\\\text{comm}} &#061; \\\\frac{\\\\text{\u68af\u5ea6\u5927\u5c0f}}{\\\\text{\u538b\u7f29\u7387}} \\\\times \\\\frac{1}{\\\\text{\u5e26\u5bbd}}<\/li>\n<li>\u200b\u5bb9\u9519\u6062\u590d\u65f6\u95f4\u200b&#xff1a;T_{\\\\text{recover}} &#061; T_{\\\\text{SSD\u8bfb\u53d6}} &#043; T_{\\\\text{\u53c2\u6570\u56de\u586b}}<\/li>\n<\/ul>\n<\/li>\n<p>\u200b\u9009\u578b\u5efa\u8bae\u200b&#xff1a;<\/p>\n<ul>\n<li>\u200b\u4e2d\u5c0f\u89c4\u6a21\u6a21\u578b\u200b&#xff1a;\u91c7\u7528\u540c\u6b65PS&#043;\u5206\u7247\u7b56\u7565&#xff1b;<\/li>\n<li>\u200b\u5343\u4ebf\u7ea7\u6a21\u578b\u200b&#xff1a;\u5f02\u6784PS&#043;NVLink\/RDMA&#043;\u5206\u5c42\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u8f6f\u786c\u4ef6\u534f\u540c\u4f18\u5316&#xff08;\u5982\u52a8\u6001\u7535\u538b\u9891\u7387\u7f29\u653e\u3001NUMA\u611f\u77e5\u8c03\u5ea6&#xff09;&#xff0c;PS\u7cfb\u7edf\u53ef\u903c\u8fd1\u786c\u4ef6\u7b97\u529b\u6781\u9650&#xff0c;\u652f\u6491\u4e07\u4ebf\u53c2\u6570\u6a21\u578b\u7684\u5206\u5e03\u5f0f\u8bad\u7ec3\u3002<\/p>\n<h2><\/h2>\n<h3>1.2 \u8bbe\u8ba1\u65b9\u6cd5\u200b<\/h3>\n<h5>\u200b1. \u67b6\u6784\u8bbe\u8ba1\u200b<\/h5>\n<ul>\n<li>\u200b\u5206\u7247\u5b58\u50a8&#xff08;Sharded Storage&#xff09;\u200b\u200b\n<ul>\n<li>\u200b\u539f\u7406\u200b&#xff1a;\u5c06\u6a21\u578b\u53c2\u6570\u5212\u5206\u4e3aK\u4e2a\u5206\u7247&#xff0c;\u5206\u6563\u5b58\u50a8\u5728\u591a\u4e2aPS\u8282\u70b9\u4e0a&#xff0c;\u901a\u8fc7\u4e00\u81f4\u6027\u54c8\u5e0c&#xff08;Consistent Hashing&#xff09;\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u4e0e\u52a8\u6001\u6269\u7f29\u5bb9\u3002<\/li>\n<li>\u200b\u5b9e\u8df5\u200b&#xff1a;\n<ul>\n<li>\u6bcf\u4e2aPS\u8282\u70b9\u72ec\u7acb\u7ba1\u7406\u5206\u7247\u53c2\u6570\u7684\u66f4\u65b0\u4e0e\u540c\u6b65\u3002<\/li>\n<li>\u4f7f\u7528\u65e0\u9501\u7f13\u51b2\u533a&#xff08;\u5982AsyncUpdateBuffer&#xff09;\u7d2f\u79ef\u68af\u5ea6\u66f4\u65b0&#xff0c;\u6279\u91cf\u5e94\u7528\u4ee5\u51cf\u5c11\u901a\u4fe1\u5f00\u9500\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u5f02\u6b65\u66f4\u65b0\u673a\u5236\u200b\n<ul>\n<li>\u200b\u7248\u672c\u63a7\u5236\u200b&#xff1a;\u4e3a\u6bcf\u4e2a\u53c2\u6570\u5206\u7247\u7ef4\u62a4\u7248\u672c\u53f7&#xff0c;\u89e3\u51b3\u5f02\u6b65\u66f4\u65b0\u7684\u5ef6\u8fdf\u51b2\u7a81&#xff08;\u5982Stale Synchronous Parallel, SSP&#xff09;2,3\u3002<\/li>\n<li>\u200b\u6d41\u6c34\u7ebf\u4f18\u5316\u200b&#xff1a;\u5c06\u68af\u5ea6\u4f20\u8f93\u3001\u53c2\u6570\u66f4\u65b0\u3001\u5206\u7247\u540c\u6b65\u64cd\u4f5c\u6d41\u6c34\u7ebf\u5316&#xff0c;\u9690\u85cf\u901a\u4fe1\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. \u901a\u4fe1\u4f18\u5316\u200b<\/h5>\n<ul>\n<li>\u200b\u68af\u5ea6\u538b\u7f29\u200b&#xff1a;\n<ul>\n<li>\u200b\u91cf\u5316\u200b&#xff1a;FP32\u2192FP16\/INT8&#xff0c;\u51cf\u5c1150%~75%\u4f20\u8f93\u91cf\u3002<\/li>\n<li>\u200b\u7a00\u758f\u66f4\u65b0\u200b&#xff1a;\u4ec5\u4f20\u8f93\u975e\u96f6\u68af\u5ea6&#xff08;\u5982Top-K\u7b5b\u9009&#xff09;&#xff0c;\u9002\u5408\u63a8\u8350\u7cfb\u7edf\u7a00\u758f\u7279\u5f81\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u534f\u8bae\u9009\u62e9\u200b&#xff1a;\n<ul>\n<li>\u8282\u70b9\u5185&#xff1a;\u200bNVLink\u200b&#xff08;600GB\/s&#xff09;\u6216RDMA\u200b&#xff08;\u03bcs\u7ea7\u5ef6\u8fdf&#xff09;\u3002<\/li>\n<li>\u8de8\u8282\u70b9&#xff1a;\u200bInfiniBand\u200b&#xff08;200Gbps&#xff09;\u6216QUIC\u200b&#xff08;\u6297\u4e22\u5305&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b3. \u5bb9\u9519\u4e0e\u4e00\u81f4\u6027\u200b<\/h5>\n<ul>\n<li>\u200b\u68c0\u67e5\u70b9\u673a\u5236\u200b&#xff1a;\n<ul>\n<li>\u5b9a\u671f\u4fdd\u5b58\u53c2\u6570\u5feb\u7167\u81f3SSD&#xff0c;\u6545\u969c\u65f6\u4ece\u6700\u8fd1\u68c0\u67e5\u70b9\u6062\u590d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u4e00\u81f4\u6027\u4fdd\u969c\u200b&#xff1a;\n<ul>\n<li>\u5f3a\u4e00\u81f4\u6027&#xff1a;\u540c\u6b65\u66f4\u65b0&#xff08;BSP&#xff09;&#xff0c;\u5ef6\u8fdf\u9ad8\u4f46\u6536\u655b\u7a33\u5b9a\u3002<\/li>\n<li>\u5f31\u4e00\u81f4\u6027&#xff1a;\u5f02\u6b65\u66f4\u65b0&#xff08;ASP&#xff09;&#xff0c;\u541e\u5410\u91cf\u9ad8\u4f46\u9700\u68af\u5ea6\u88c1\u526a\u9632\u53d1\u6563\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>\u200b\u4e8c\u3001\u786c\u4ef6\u914d\u6bd4\u7b56\u7565\u200b<\/h2>\n<h5>\u200b1. \u5f02\u6784\u8ba1\u7b97\u8d44\u6e90\u5206\u914d\u200b<\/h5>\n<table>\n<tr>\u200b\u786c\u4ef6\u7c7b\u578b\u200b\u200b\u89d2\u8272\u200b\u200b\u914d\u6bd4\u5efa\u8bae\u200b\u200b\u9002\u7528\u573a\u666f\u200b<\/tr>\n<tbody>\n<tr>\n<td>\u200bCPU\u200b<\/td>\n<td>\u6570\u636e\u52a0\u8f7d\u3001\u53c2\u6570\u66f4\u65b0\u3001IO\u8c03\u5ea6<\/td>\n<td>60%~80%\u8282\u70b9<\/td>\n<td>\u63a8\u8350\u7cfb\u7edf&#xff08;IO\u5bc6\u96c6\u578b&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u200bGPU\/XPU\u200b<\/td>\n<td>\u590d\u6742\u7f51\u7edc\u8ba1\u7b97&#xff08;\u5982DNN\u5c42&#xff09;<\/td>\n<td>20%~40%\u8282\u70b9<\/td>\n<td>CV\/NLP\u6a21\u578b\u8ba1\u7b97\u5bc6\u96c6\u578b\u90e8\u5206<\/td>\n<\/tr>\n<tr>\n<td>\u200b\u4e13\u7528\u82af\u7247\u200b<\/td>\n<td>\u5b9a\u5236\u5316\u7b97\u5b50\u52a0\u901f<\/td>\n<td>\u6309\u9700\u6df7\u90e8<\/td>\n<td>\u7279\u5b9a\u6a21\u578b&#xff08;\u5982Transformer&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\u200b\u52a8\u6001\u8d44\u6e90\u8c03\u5ea6\u200b&#xff1a;\n<ul>\n<li>\u98de\u6868\u5f02\u6784PS\u67b6\u6784\u4e2d&#xff0c;CPU-Trainer\u5904\u7406IO&#xff0c;Heter-Trainer&#xff08;GPU\/XPU&#xff09;\u6267\u884c\u8ba1\u7b97&#xff0c;\u901a\u8fc7\u534f\u7a0b\u4efb\u52a1\u8c03\u5ea6\u907f\u514d\u963b\u585e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. \u7f51\u7edc\u5e26\u5bbd\u914d\u6bd4\u200b<\/h5>\n<ul>\n<li>\u200bPS-Worker\u5e26\u5bbd\u200b&#xff1a;\n<ul>\n<li>\u9700\u6c42&#xff1a;\u5355Worker\u5e26\u5bbd \u2265 \\\\frac{\\\\text{\u68af\u5ea6\u5927\u5c0f}}{\\\\text{\u8ba1\u7b97\u5468\u671f}}\u3002<\/li>\n<li>\u5b9e\u8df5&#xff1a;\n<ul>\n<li>CPU\u96c6\u7fa4&#xff1a;1Gbps\/Worker&#xff08;\u5343\u4ebf\u53c2\u6570&#xff09;\u3002<\/li>\n<li>GPU\u96c6\u7fa4&#xff1a;10Gbps\/Worker&#xff08;\u9700InfiniBand\u652f\u6301&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>\u200bSSD\u914d\u7f6e\u7b56\u7565\u200b<\/h4>\n<h5>\u200b1. \u5206\u5c42\u5b58\u50a8\u8bbe\u8ba1\u200b<\/h5>\n<ul>\n<li>\u200b\u5b58\u50a8\u5c42\u7ea7\u200b&#xff1a; graph LR<br \/>\n  A[SSD] &#8211;&gt; B[\u5185\u5b58] &#8211;&gt; C[\u663e\u5b58] <\/p>\n<ul>\n<li>\u200bSSD\u200b&#xff1a;\u5b58\u50a8\u5168\u91cf\u53c2\u6570\u51b7\u5907\u4efd&#xff0c;\u652f\u6301TB~PB\u7ea7\u6a21\u578b\u3002<\/li>\n<li>\u200b\u5185\u5b58\u200b&#xff1a;\u7f13\u5b58\u9ad8\u9891\u8bbf\u95ee\u53c2\u6570\u5206\u7247&#xff08;LRU\u7b56\u7565&#xff09;\u3002<\/li>\n<li>\u200b\u663e\u5b58\u200b&#xff1a;\u4ec5\u5b58\u50a8\u5f53\u524d\u8ba1\u7b97\u6240\u9700\u5206\u7247\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u6570\u636e\u8c03\u5ea6\u200b&#xff1a;\n<ul>\n<li>\u200b\u9884\u53d6\u673a\u5236\u200b&#xff1a;\u6839\u636e\u8bbf\u95ee\u6a21\u5f0f\u9884\u52a0\u8f7d\u4e0b\u4e00\u6279\u53c2\u6570\u81f3\u5185\u5b58\u3002<\/li>\n<li>\u200b\u5199\u4f18\u5316\u200b&#xff1a;\u5f02\u6b65\u6279\u91cf\u843d\u76d8SSD&#xff0c;\u51cf\u5c11I\/O\u6b21\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. SSD\u9009\u578b\u4e0e\u914d\u7f6e\u200b<\/h5>\n<ul>\n<li>\u200b\u9009\u578b\u200b&#xff1a;\n<ul>\n<li>NVMe SSD&#xff08;\u968f\u673a\u8bfb\u5199 &gt; 500K IOPS&#xff09;&#xff0c;\u5982Intel Optane\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u914d\u7f6e\u539f\u5219\u200b&#xff1a;\n<ul>\n<li>\u5bb9\u91cf \u2265 2\u500d\u6a21\u578b\u5927\u5c0f&#xff08;\u542b\u5907\u4efd\u4e0e\u4e2d\u95f4\u72b6\u6001&#xff09;\u3002<\/li>\n<li>RAID 0\u9635\u5217\u63d0\u5347\u541e\u5410&#xff08;\u59824\u76d8\u4f4dRAID 0 \u2192 8GB\/s\u8bfb\u5199&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>\u5b9e\u8df5\u6848\u4f8b\u4e0e\u6027\u80fd\u5bf9\u6bd4\u200b<\/h4>\n<h5>\u200b1. \u98de\u6868\u5f02\u6784\u53c2\u6570\u670d\u52a1\u5668\u200b<\/h5>\n<ul>\n<li>\u200b\u67b6\u6784\u200b&#xff1a;\n<ul>\n<li>CPU-Trainer\u5904\u7406\u6570\u636e\u52a0\u8f7d\u4e0e\u7a00\u758f\u66f4\u65b0&#xff0c;GPU-Trainer\u6267\u884cDNN\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u6027\u80fd\u200b&#xff1a;\n<ul>\n<li>\u5343\u4ebf\u63a8\u8350\u6a21\u578b\u8bad\u7ec3\u901f\u5ea6\u63d0\u534765%&#xff0c;\u8d44\u6e90\u5229\u7528\u7387\u8fbe90%&#043;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u200b2. \u5bf9\u6bd4\u4f20\u7edf\u65b9\u6848\u200b<\/h5>\n<table>\n<tr>\u200b\u6307\u6807\u200b\u200b\u4f20\u7edfPS&#xff08;\u7eafCPU&#xff09;\u200b\u200b\u200b\u4f20\u7edfPS&#xff08;\u7eafGPU&#xff09;\u200b\u200b\u200b\u5f02\u6784PS\u200b<\/tr>\n<tbody>\n<tr>\n<td>\u200b\u541e\u5410\u91cf\u200b<\/td>\n<td>\u9ad8&#xff08;\u5f02\u6b65\u66f4\u65b0&#xff09;<\/td>\n<td>\u4f4e&#xff08;IO\u74f6\u9888&#xff09;<\/td>\n<td>\u200b\u6781\u9ad8\u200b&#xff08;\u4efb\u52a1\u62c6\u5206&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u200b\u786c\u4ef6\u6210\u672c\u200b<\/td>\n<td>\u4f4e<\/td>\n<td>\u9ad8<\/td>\n<td>\u200b\u4f18\u531620%~30%\u200b\u200b<\/td>\n<\/tr>\n<tr>\n<td>\u200b\u6269\u5c55\u6027\u200b<\/td>\n<td>\u53d7\u9650&#xff08;\u5355\u786c\u4ef6&#xff09;<\/td>\n<td>\u53d7\u9650&#xff08;\u5355\u786c\u4ef6&#xff09;<\/td>\n<td>\u200b\u7075\u6d3b\u6df7\u90e8\u200b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4>\u603b\u7ed3\u4e0e\u5efa\u8bae\u200b<\/h4>\n<li>\u200b\u8bbe\u8ba1\u6838\u5fc3\u200b&#xff1a;\n<ul>\n<li>\u200b\u5206\u7247\u5b58\u50a8&#043;\u5f02\u6b65\u66f4\u65b0\u200b \u89e3\u51b3\u6269\u5c55\u6027\u95ee\u9898&#xff0c;\u200b\u68af\u5ea6\u538b\u7f29&#043;\u6d41\u6c34\u7ebf\u200b \u7a81\u7834\u901a\u4fe1\u74f6\u9888\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200b\u914d\u6bd4\u539f\u5219\u200b&#xff1a;\n<ul>\n<li>IO\u5bc6\u96c6\u578b&#xff08;\u63a8\u8350\u7cfb\u7edf&#xff09;&#xff1a;\u200bCPU\u4e3b\u5bfc\u200b&#xff08;80%\u8282\u70b9&#xff09;&#xff0c;\u8ba1\u7b97\u5bc6\u96c6\u578b&#xff08;CV\/NLP&#xff09;&#xff1a;\u200bGPU\/XPU\u6df7\u90e8\u200b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u200bSSD\u4f18\u5316\u200b&#xff1a;\n<ul>\n<li>\u91c7\u7528 \u200bNVMe RAID 0\u9635\u5217&#xff0c;\u7ed3\u5408 \u200bLRU\u7f13\u5b58&#043;\u9884\u53d6\u200b \u6700\u5927\u5316I\/O\u6548\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<p>\u200b\u516c\u5f0f\u6307\u5bfc\u200b&#xff1a;<\/p>\n<ul>\n<li>\u200b\u901a\u4fe1\u5f00\u9500\u200b&#xff1a;T_{\\\\text{comm}} &#061; \\\\frac{\\\\text{\u53c2\u6570\u5927\u5c0f}}{\\\\text{\u538b\u7f29\u7387}} \\\\times \\\\frac{1}{\\\\text{\u5e26\u5bbd}}<\/li>\n<li>\u200b\u5b58\u50a8\u5c42\u7ea7\u54cd\u5e94\u65f6\u95f4\u200b&#xff1a;T_{\\\\text{access}} &#061; T_{\\\\text{SSD}} \\\\times P_{\\\\text{miss}} &#043; T_{\\\\text{mem}} \\\\times P_{\\\\text{hit}}<\/li>\n<\/ul>\n<p>\u5b9e\u9645\u90e8\u7f72\u9700\u7ed3\u5408\u96c6\u7fa4\u62d3\u6251&#xff08;\u5982\u80d6\u6811\u7f51\u7edc&#xff09;\u548c\u6a21\u578b\u7279\u6027\u52a8\u6001\u8c03\u4f18&#xff0c;\u5f02\u6784PS\u67b6\u6784\u5df2\u6210\u4e3a\u5343\u4ebf\u7ea7\u6a21\u578b\u8bad\u7ec3\u7684\u5de5\u4e1a\u6807\u51c6\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e26\u6b21\uff0c\u6536\u85cf25\u6b21\u3002\u5b9e\u9645\u90e8\u7f72\u9700\u7ed3\u5408\u96c6\u7fa4\u62d3\u6251\uff08\u5982\u80d6\u6811\u7f51\u7edc\uff09\u548c\u6a21\u578b\u7279\u6027\u52a8\u6001\u8c03\u4f18\uff0c\u5f02\u6784PS\u67b6\u6784\u5df2\u6210\u4e3a\u5343\u4ebf\u7ea7\u6a21\u578b\u8bad\u7ec3\u7684\u5de5\u4e1a\u6807\u51c6\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[664,43,207],"topic":[],"class_list":["post-47174","post","type-post","status-publish","format-standard","hentry","category-server","tag-664","tag-43","tag-207"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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