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https://issues.apache.org/jira/browse/YARN-9120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16723042#comment-16723042
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Peter Bacsko commented on YARN-9120:
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Thanks for confirming it [~tangzhankun]. I'm confident that most clusters will
be heterogeneous, so it's good to know that Ambari supports that.
Regarding the "off" value, I'm not super-insistent on having it. After all,
most users will probably use a GUI anyway and click on buttons to turn it
on/off.
> 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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