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https://issues.apache.org/jira/browse/YARN-7481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Qingcha updated YARN-7481:
-------------------------------
    Attachment:     (was: hadoop-2.7.2.gpu-port-20180711.patch)

> Gpu locality support for Better AI scheduling
> ---------------------------------------------
>
>                 Key: YARN-7481
>                 URL: https://issues.apache.org/jira/browse/YARN-7481
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: api, RM, yarn
>    Affects Versions: 2.7.2
>            Reporter: Chen Qingcha
>            Priority: Major
>             Fix For: 2.7.2
>
>         Attachments: GPU locality support for Job scheduling.pdf, 
> hadoop-2.7.2.gpu-port.patch, hadoop-2.9.0.gpu-port.patch, hadoop_2.9.0.patch
>
>   Original Estimate: 1,344h
>  Remaining Estimate: 1,344h
>
> We enhance Hadoop with GPU support for better AI job scheduling. 
> Currently, YARN-3926 also supports GPU scheduling, which treats GPU as 
> countable resource. 
> However, GPU placement is also very important to deep learning job for better 
> efficiency.
>  For example, a 2-GPU job runs on gpu {0,1} could be faster than run on gpu 
> {0, 7}, if GPU 0 and 1 are under the same PCI-E switch while 0 and 7 are not.
>  We add the support to Hadoop 2.7.2 to enable GPU locality scheduling, which 
> support fine-grained GPU placement. 
> A 64-bits bitmap is added to yarn Resource, which indicates both GPU usage 
> and locality information in a node (up to 64 GPUs per node). '1' means 
> available and '0' otherwise in the corresponding position of the bit.   



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