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Update cluster train doc #95

Merged
merged 4 commits into from
Sep 29, 2018
Merged

Update cluster train doc #95

merged 4 commits into from
Sep 29, 2018

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typhoonzero
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@typhoonzero typhoonzero commented Sep 26, 2018 •
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以下截图为修改部分预览

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shanyi15
shanyi15 reviewed Sep 27, 2018
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doc/fluid/user_guides/howto/training/cluster_howto.rst Outdated
注NCCL2模式目前仅支持trainer API，NCCL2方式并没有很多可选项，也没有"transpiler"，所以并没有底层API。
使用NCCL2方式同样需要配置每个节点的环境变量，此处与parameter server模式有所不同，并不需要启动独立的\
parameter server的进程，只需要启动多个trainer进程即可。
NCCL2模式的分布式训练，由于没有parameter server角色，是trainer之间互相通信，使用是注意：
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使用“时”注意

doc/fluid/user_guides/howto/training/cluster_howto.rst Outdated
开启内存优化
++++++++++++

在parameter server分布式训练模式下，要开启内存优化 :code:`memory_optimize` 和单机相比，需要注意按照下面
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这里有一些多余的空格
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gongweibao
gongweibao approved these changes Sep 27, 2018
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LGTM

@shanyi15 shanyi15 mentioned this pull request Sep 27, 2018
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related PR: PaddlePaddle/Paddle#13535

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Comments Done.

shanyi15
shanyi15 approved these changes Sep 29, 2018
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LGTM

@typhoonzero typhoonzero merged commit 9cfbb06 into PaddlePaddle:develop Sep 29, 2018
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@gongweibao gongweibao gongweibao approved these changes

@shanyi15 shanyi15 shanyi15 approved these changes

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