{"id":25194,"date":"2025-09-18T09:18:00","date_gmt":"2025-09-18T01:18:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=25194"},"modified":"2025-08-20T00:43:52","modified_gmt":"2025-08-19T16:43:52","slug":"train-chatgpt-like-models-gpu-cloud-requirements-distributed-deploy","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/server\/train-chatgpt-like-models-gpu-cloud-requirements-distributed-deploy\/","title":{"rendered":"\u6559\u4f60\u7528GPU\u4e91\u670d\u52a1\u5668\u8bad\u7ec3ChatGPT\u7c7b\u6a21\u578b\uff1a\u663e\u5b58\u3001\u786c\u76d8IO\u4e0e\u7b97\u529b\u5982\u4f55\u89c4\u5212"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4f60\u4e3a\u4ec0\u4e48\u9700\u8981\u5148\u7b97\u201c\u8d44\u6e90\u8d26\u201d<\/h2>\n\n\n\n<p>\u5f53\u6211\u4eec\u5e2e\u7528\u6237\u628a\u4e00\u4e2a\u804a\u5929\u6a21\u578b\u4ece\u201c\u53ef\u8dd1\u901a\u201d\u63a8\u8fdb\u5230\u201c\u53ef\u4e0a\u7ebf\u201d\uff0c\u7b2c\u4e00\u6b65\u4e0d\u662f\u5199\u4ee3\u7801\uff0c\u800c\u662f\u91cf\u5316\u8d44\u6e90\uff1a<strong>\u663e\u5b58<\/strong>\u51b3\u5b9a\u5355\u5361\u80fd\u653e\u591a\u5927\u7684\u6a21\u578b\u4e0e\u6279\u91cf\uff0c<strong>\u7b97\u529b<\/strong>\u51b3\u5b9a\u8bad\u7ec3\u65f6\u957f\u4e0e\u6210\u672c\uff0c<strong>\u786c\u76d8IO\/\u6570\u636e\u7ba1\u9053<\/strong>\u51b3\u5b9aGPU\u662f\u5426\u88ab\u201c\u997f\u6b7b\u201d\u3002\u5982\u679c\u8fd9\u4e09\u8005\u4efb\u4f55\u4e00\u4e2a\u6ca1\u914d\u5e73\u8861\uff0c\u4f60\u4f1a\u770b\u5230GPU\u95f2\u7740\u7b49\u6570\u636e\u3001loss\u9707\u8361\u6216\u96c6\u7fa4\u6269\u4e0d\u8d77\u6765\u3002\u5927\u6a21\u578b\u8bad\u7ec3\u672c\u8d28\u4e0a\u662f<strong>\u5f3a\u8ba1\u7b97+\u9ad8\u5e26\u5bbd+\u9ad8\u5e76\u53d1IO<\/strong>\u7684\u7efc\u5408\u5de5\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">GPT\u7c7b\u6a21\u578b\u7684\u6838\u5fc3\u8d44\u6e90\u6d88\u8017\u600e\u4e48\u4f30<\/h2>\n\n\n\n<p>\u4ece\u539f\u7406\u4e0a\u8bb2\uff0cTransformer\u81ea\u56de\u5f52\u9884\u8bad\u7ec3\u4e3b\u8981\u6d88\u8017\u4e24\u5757\uff1a\u53c2\u6570\u7b97\u5b50\u8ba1\u7b97\uff08FLOPs\uff09\u4e0e\u6570\u636e\u642c\u8fd0\uff08\u663e\u5b58\/IO\uff09\u3002Compute-optimal\u7814\u7a76\uff08Chinchilla\uff09\u6307\u51fa\uff1a\u5728\u56fa\u5b9a\u8ba1\u7b97\u9884\u7b97\u4e0b\uff0c<strong>\u6a21\u578b\u89c4\u6a21\u4e0e\u8bad\u7ec3token\u6570\u5e94\u5927\u81f4\u7b49\u6bd4\u6269\u5f20<\/strong>\uff0c\u8fd9\u5f71\u54cd\u4e86\u4f60\u5bf9\u201c\u8bad\u7ec3\u591a\u4e45\/\u9700\u8981\u591a\u5c11\u5361\u201d\u7684\u9884\u4f30\u3002<\/p>\n\n\n\n<p><strong>\u663e\u5b58\u4fa7\u7684\u57fa\u672c\u76d8<\/strong>\uff1a\u5168\u53c2\u5fae\u8c03\u65f6\uff0c\u53c2\u6570\u3001\u68af\u5ea6\u4e0eAdam\u4f18\u5316\u5668\u72b6\u6001\u4f1a\u53e0\u52a0\u5360\u7528\u663e\u5b58\uff0c\u56e0\u6b64\u5b9e\u8df5\u91cc\u5e38\u89c1\u201c\u6bcf\u53c2\u6570\u7ea6\u82e5\u5e72\u5b57\u8282\u201d\u7684\u7ecf\u9a8c\u6cd5\u5219\uff1b\u5de5\u7a0b\u754c\u7684\u7cfb\u7edf\u5316\u65b9\u6848\u662f\u7528<strong>ZeRO\/FSDP<\/strong>\u628a\u53c2\u6570\u3001\u68af\u5ea6\u3001\u4f18\u5316\u5668\u72b6\u6001\u5207\u5206\u6216\u4e0b\u653e\uff0c\u663e\u8457\u964d\u4f4e\u5355\u5361\u5360\u7528\uff0c\u4ece\u800c\u628a\u5927\u6a21\u578b\u644a\u5230\u66f4\u591aGPU\u4e0a\u3002<\/p>\n\n\n\n<p><strong>\u7b97\u529b\u4fa7\u7684\u57fa\u672c\u76d8<\/strong>\uff1a\u66f4\u9ad8\u4ee3\u9645\u7684GPU\u62e5\u6709\u66f4\u5927\u7684\u663e\u5b58\u5e26\u5bbd\u4e0e\u66f4\u5feb\u77e9\u9635\u6838\u5fc3\u3002\u6bd4\u5982NVIDIAA100(80GB)\u63d0\u4f9b>2TB\/s\u663e\u5b58\u5e26\u5bbd\u5e76\u652f\u6301MIG\u5207\u5206\uff1bNVIDIAH100\u5728HBM\u4e0eNVLink\u4e92\u8054\u4e0a\u7ee7\u7eed\u63d0\u5347\uff0c\u5e76\u5f15\u5165TransformerEngine(\u5982FP8)\u5e2e\u52a9\u66f4\u5feb\u8bad\u7ec3\u3002<\/p>\n\n\n\n<p><strong>IO\u4fa7\u7684\u57fa\u672c\u76d8<\/strong>\uff1a\u5355\u673aNVMe\u987a\u5e8f\u8bfb\u53ef\u8fbeGB\/s\u91cf\u7ea7\uff0c\u4f46\u5f53\u4f60\u628a\u6570\u636e\u589e\u5f3a\u3001\u89e3\u7801\u7b49CPU\u4efb\u52a1\u53e0\u52a0\u540e\uff0c\u5f88\u5bb9\u6613\u201c\u5361\u5589\u201d\u3002\u89e3\u51b3\u601d\u8def\u5305\u62ec\u7528<strong>PyTorchDataLoader\u8c03\u4f18(num_workers\/pin_memory\u7b49)<\/strong>\u3001\u628a\u9884\u5904\u7406\u642c\u5230GPU\u7684<strong>NVIDIADALI<\/strong>\uff0c\u4ee5\u53ca<strong>GPUDirectStorage(GDS)\u8ba9\u5b58\u50a8\u76f4\u8fdeGPU\u663e\u5b58\uff0c\u51cf\u5c11CPU\u642c\u8fd0\u5f00\u9500\u3002<br>\u8fdb\u4e00\u6b65\uff0cGDS\u6700\u4f73\u5b9e\u8df5\u4e0e\u8bbe\u8ba1\u6307\u5357\u7ed9\u51fa\u4e86\u5982\u4f55\u5728\u540c\u4e00PCIe\u4ea4\u6362\u82af\u7247\u4e0b\u8ba9NVMe\u5230GPU\u8d70\u76f4\u901a\u8def\u5f84<\/strong>\uff0c\u964d\u4f4e\u5ef6\u8fdf\u3001\u63d0\u5347\u5e26\u5bbd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e0d\u540c\u6a21\u578b\u89c4\u6a21\u4e0b\u7684\u914d\u7f6e\u6e05\u5355\uff08\u53ef\u4f5c\u8d77\u6b65\u53c2\u8003\uff09<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8bf4\u660e\uff1a\u8fd9\u662f\u5de5\u7a0b\u5411\u201c\u8d77\u914d\u8868\u201d\uff0c\u4fbf\u4e8e\u4f60\u521d\u9009<a href=\"https:\/\/cn.hostease.com\/gpu-servers.html\" title=\"\">GPU\u670d\u52a1\u5668<\/a>\u3002\u5168\u53c2\u9884\u8bad\u7ec3\u7684\u9700\u6c42\u6700\u9ad8\uff1b\u5fae\u8c03\u4e0e\u6307\u4ee4\u7cbe\u8c03\u53ef\u663e\u8457\u964d\u914d\u3002QLoRA\u4e00\u884c\u6765\u6e90\u4e8e\u8bba\u6587\u8bc1\u660e\u7684\u53ef\u884c\u6027\u7ed3\u8bba\uff0865B\u53ef\u5728\u5355\u5f2048GB\u5fae\u8c03\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u76ee\u6807\u4e0e\u573a\u666f<\/th><th>\u53c2\u6570\u89c4\u6a21(\u53c2\u8003)<\/th><th>\u8bad\u7ec3\u65b9\u5f0f<\/th><th>\u5efa\u8baeGPU\u89c4\u683c<\/th><th>\u663e\u5b58\u9700\u6c42\/\u5355\u5361(\u4f30\u7b97)<\/th><th>\u5e76\u884c\/\u5185\u5b58\u4f18\u5316\u5efa\u8bae<\/th><\/tr><\/thead><tbody><tr><td>\u4e2d\u5c0f\u6a21\u578b\u9884\u8bad\u7ec3\/\u5fae\u8c03<\/td><td>7B-13B<\/td><td>\u5168\u53c2\u5fae\u8c03<\/td><td>1-4\u00d7A10080GB\u6216H10080GB<\/td><td>\u226540-80GB<\/td><td>\u57fa\u7840DDP+\u6df7\u5408\u7cbe\u5ea6\uff1bDataLoader\u8c03\u4f18\uff1b\u5fc5\u8981\u65f6FSDP<\/td><\/tr><tr><td>\u5f00\u6e90\u4e2d\u578b\u6a21\u578b\u6307\u4ee4\u7cbe\u8c03<\/td><td>33B-70B<\/td><td><strong>QLoRA\/LoRA<\/strong><\/td><td>1\u00d748-80GB\u5373\u53ef\u8d77\u6b65<\/td><td>\u7ea620-48GB<\/td><td>QLoRA+4bit\u6743\u91cd\u91cf\u5316\uff0cPagedOptimizer\uff1b\u6570\u636e\u7ba1\u9053\u7528DALI\/GDS <\/td><\/tr><tr><td>\u5927\u6a21\u578b\u5168\u53c2\u5fae\u8c03<\/td><td>70B<\/td><td>\u5168\u53c2\u5fae\u8c03<\/td><td>8\u00d7A100\/H100(80GB)\u8d77<\/td><td>40-80GB+\u4f18\u5316\u5668\u72b6\u6001<\/td><td>FSDP\u6216ZeRO-2\/3\u62c6\u5206\u4f18\u5316\u5668\u4e0e\u68af\u5ea6 <\/td><\/tr><tr><td>\u8d85\u5927\u6a21\u578b\u9884\u8bad\u7ec3<\/td><td>100B-1T<\/td><td>\u9884\u8bad\u7ec3<\/td><td>\u591a\u8282\u70b9\u00d78-64GPU\/H100\u96c6\u7fa4<\/td><td>80GB\u00d7N<\/td><td><strong>Megatron-LM<\/strong>\u7ec4\u5408\u5e76\u884c(TP+PP+DP)\uff0cNCCL\u9ad8\u6548\u901a\u4fe1\uff0cNDR400Gb\/s\u7f51\u7edc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5907\u6ce8\uff1a\u5177\u4f53\u663e\u5b58\u5360\u7528\u5f3a\u4f9d\u8d56batch\u3001\u5e8f\u5217\u957f\u5ea6\u3001\u4f18\u5316\u5668\u4e0e\u662f\u5426\u505a\u6fc0\u6d3b\u91cd\u8ba1\u7b97\/\u68c0\u67e5\u70b9\uff0c\u6240\u4ee5\u4e0a\u8868\u5f3a\u8c03<strong>\u65b9\u6cd5\u8bba+\u8d77\u914d<\/strong>\u800c\u975e\u6b7b\u53c2\u6570\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u5206\u5e03\u5f0f\u8bad\u7ec3\u600e\u4e48\u9009\uff1a\u4e09\u5927\u5e76\u884c\u4e0e\u901a\u4fe1\u6808<\/h2>\n\n\n\n<p>\u6211\u4eec\u5728\u5927\u591a\u6570\u9879\u76ee\u91cc\u9075\u5faa\u201c<strong>\u80fd\u7b80\u5355\u4e0d\u590d\u6742<\/strong>\u201d\u7684\u539f\u5219\u5206\u5c42\u7ec4\u5408\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u5e76\u884c(DataParallel\/DDP\/FSDP)<\/strong>\uff1a\u6700\u6613\u7528\uff0c\u541e\u5410\u6269\u5c55\u597d\uff1bFSDP\u628a\u53c2\u6570\/\u68af\u5ea6\/\u4f18\u5316\u5668\u72b6\u6001\u5206\u7247\uff0c\u6709\u6548\u964d\u4f4e\u5355\u5361\u663e\u5b58\u5cf0\u503c\u3002<\/li>\n\n\n\n<li><strong>\u5f20\u91cf\u5e76\u884c(TensorParallel, Megatron-LM)<\/strong>\uff1a\u628a\u5355\u5c42\u5927\u77e9\u9635\u5207\u5230\u591a\u5361\u4e0a\uff0c\u9002\u5408\u8d85\u5927\u5c42\u5bbd\u3002<\/li>\n\n\n\n<li><strong>\u6d41\u6c34\u7ebf\u5e76\u884c(PipelineParallel)<\/strong>\uff1a\u628a\u5c42\u5207\u6210\u51e0\u6bb5\u505a\u6d41\u6c34\u7ebf\u5e76\u53d1\uff0cMegatron\u63d0\u51fa\u7684\u4ea4\u9519\u8c03\u5ea6\u53ef\u63d0\u5347\u541e\u5410\u3002<\/li>\n\n\n\n<li><strong>\u901a\u4fe1\u4e0e\u4e92\u8054<\/strong>\uff1a\u5355\u673a\u7528NVLink(\u4f8b\u5982H100\u4ee3\u9645\u5355\u5361\u95f4900GB\/s)\uff0c\u8de8\u673a\u5efa\u8baeInfiniBandNDR400Gb\/s\u5e76\u7528NCCL\u505aall-reduce\/all-gather\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u6570\u636e\u4e0e\u786c\u76d8IO\uff1a\u522b\u8ba9GPU\u201c\u7b49\u996d\u5403\u201d<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u8fd9\u6837\u7ec4\u5408\u6765\u7a33\u5b9a\u5582\u9971GPU\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7ed3\u6784\u5316\u6570\u636e\u7ba1\u7ebf<\/strong>\uff1a\u628a\u89e3\u7801\/\u589e\u5f3a\u642c\u4e0aGPU\uff08DALI\uff09\uff0c\u5728CPU\u4fa7\u4ec5\u505a\u5fc5\u8981\u7684\u8f7b\u91cf\u9884\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>DataLoader\u8c03\u4f18<\/strong>\uff1a\u5408\u7406\u589e\u52a0num_workers\/\u5f00\u542fpin_memory\/\u9884\u53d6\uff1b\u76d1\u63a7worker\u5229\u7528\u7387\u800c\u975e\u76f2\u76ee\u52a0\u7ebf\u7a0b\u3002<\/li>\n\n\n\n<li><strong>\u76f4\u8fde\u5b58\u50a8\u8def\u5f84<\/strong>\uff1a\u5c1d\u8bd5GPUDirectStorage\uff0c\u4eceNVMe\/NVMe-oF\u5230GPU\u663e\u5b58\u8d70\u76f4\u8fbe\uff0c\u51cf\u5c11CPU\u62f7\u8d1d\u4e0e\u6296\u52a8\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bad\u7ec3\u5230\u90e8\u7f72\uff1a\u4e00\u5957\u884c\u4e4b\u6709\u6548\u7684\u843d\u5730\u8def\u5f84<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bad\u7ec3\u9636\u6bb5<\/strong>\uff1a\u540c\u5730\u57df\u540c\u53ef\u7528\u533a\u90e8\u7f72\uff08\u51cf\u5c11\u8de8\u5730\u57df\u5ef6\u8fdf\uff09\uff0c\u591a\u673a\u4f7f\u7528InfiniBandNDR400Gb\/s\u6216RoCEv2\u4f4e\u5ef6\u8fdf\u7f51\u7edc\uff1b\u53c2\u6570\u670d\u52a1\u5668\u4e0d\u662f\u4e3b\u6d41\uff0c\u9996\u9009NCCL\u73af\u5f62\/\u6811\u5f62\u62d3\u6251\u3002<\/li>\n\n\n\n<li><strong>\u63a8\u7406\u9636\u6bb5<\/strong>\uff1a\u4e0e\u8bad\u7ec3\u89e3\u8026\uff0c\u6a21\u578b\u56fa\u5316\u540e\u90e8\u7f72\u5728\u79bb\u7528\u6237\u8fd1\u7684\u533a\u57df\uff08\u4f8b\u5982\u7f8e\u56fd\u9762\u5411\u5317\u7f8e\u3001\u65e5\u672c\/\u97e9\u56fd\u9762\u5411\u4e1c\u5317\u4e9a\u3001\u9999\u6e2f\/\u65b0\u52a0\u5761\u8986\u76d6\u4e1c\u5357\u4e9a\uff09\uff0c\u4ee5\u964d\u4f4e\u54cd\u5e94\u65f6\u5ef6\u3002\u5bf9\u4e8eKV-Cache\u9ad8\u6548\u590d\u7528\u53ef\u91c7\u7528vLLM\u7c7b\u5f15\u64ce\u3002<\/li>\n\n\n\n<li><strong>\u5f39\u6027\u4e0e\u591a\u79df\u6237<\/strong>\uff1aA100\/H100\u652f\u6301<strong>MIG<\/strong>\u628a\u4e00\u5f20\u5361\u5212\u6210\u591a\u5b9e\u4f8b\uff0c\u9002\u5408\u5c0f\u89c4\u6a21\u5fae\u8c03\/AB\u6d4b\u8bd5\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u6211\u4eec\u7ed9\u4f60\u7684\u4e09\u5957\u6807\u51c6\u5316\u65b9\u6848<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee5\u4e0b\u65b9\u6848\u4ee5Hostease\u7684\u591a\u5730\u57dfGPU\u670d\u52a1\u5668\u4e3a\u53c2\u7167\uff0c\u7ed3\u5408\u5927\u90e8\u5206\u5916\u8d38\u548c\u8de8\u5883\u4e1a\u52a1\u7684\u5e38\u89c1\u9700\u6c42\u505a\u7684\u201c\u5373\u63d2\u5373\u7528\u201d\u5efa\u8bae\u3002<\/p>\n<\/blockquote>\n\n\n\n<p><strong>\u5165\u95e8\u5fae\u8c03\u65b9\u6848\uff08\u4f4e\u6210\u672c\uff09<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76ee\u6807\uff1a7B-13B\u4e2d\u6587\/\u884c\u4e1a\u8bed\u6599\u6307\u4ee4\u5fae\u8c03<\/li>\n\n\n\n<li>\u914d\u7f6e\uff1a\u5355\u53f0GPU\u670d\u52a1\u5668(1\u00d7A100\/H100 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