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Posted to yarn-issues@hadoop.apache.org by "Zhankun Tang (JIRA)" <ji...@apache.org> on 2018/12/14 05:08:00 UTC
[jira] [Commented] (YARN-9120) Need to have a way to turn off GPU
auto-discovery in GpuDiscoverer
[ https://issues.apache.org/jira/browse/YARN-9120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720929#comment-16720929 ]
Zhankun Tang commented on YARN-9120:
------------------------------------
[~snemeth] , I'm not quite clear of the requirement here. Are we going to add a flag to turn off all GPU device discovery from a specific YARN node? Maybe remove "yarn.io/gpu" from resource-types.xml is another feasible solution?
> Need to have a way to turn off GPU auto-discovery in GpuDiscoverer
> ------------------------------------------------------------------
>
> Key: YARN-9120
> URL: https://issues.apache.org/jira/browse/YARN-9120
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
>
> GpuDiscoverer.getGpusUsableByYarn either parses the user-defined GPU devices or should have the value 'auto' (from property: yarn.nodemanager.resource-plugins.gpu.allowed-gpu-devices)
> In some circumstances, users would want to exclude a node from scheduling, so they should have an option to turn off auto-discovery.
> It's straightforward that this is possible by removing the GPU resource-plugin from YARN's config along with GPU-related config in container-executor.cfg, but doing that with a dedicated value for yarn.nodemanager.resource-plugins.gpu.allowed-gpu-devices is a more lightweight approach.
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