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https://issues.apache.org/jira/browse/YARN-9097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123963#comment-17123963
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Bilwa S T commented on YARN-9097:
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Hi [~snemeth]
Thanks for raising this issue. I could see that getGpuDeviceInformation is
called on NM init and GpuResourcePlugin#getNMResourceInfo which is already
synchronized and getGpusUsableByYarn is also called on NM init. Hence all three
methods need not be synchronized
I think even GpuResourceHandlerImpl#postComplete need not be synchronized as
GpuResourceAllocator#unassignGpus is already synchronized
> Investigate why GpuDiscoverer methods are synchronized
> ------------------------------------------------------
>
> Key: YARN-9097
> URL: https://issues.apache.org/jira/browse/YARN-9097
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Bilwa S T
> Priority: Minor
> Labels: newbie, newbie++
>
> GpuDiscoverer.initialize surely shouldn't have been synchronized.
> Please also investigate why getGpuDeviceInformation / getGpusUsableByYarn are
> synchronized.
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