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https://issues.apache.org/jira/browse/MESOS-5742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15356238#comment-15356238
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Kevin Klues commented on MESOS-5742:
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If you don't also set the {{--isolators=gpu/nvidia}} flag, then you can set
{{--resources="gpus: "}} to whatever you want. The idea being that you only
want the semantics enforced by the {{gpu/nvidia}} isolator (i.e. that only
*non-fractional* GPUs can be specified) when the {{gpu/nvidia}} isolator is
enabled. Some other isolator might be built in the future that allows
fractional GPUs.
> When start an agent with `--resources`, the GPU resource can be fractional
> --------------------------------------------------------------------------
>
> Key: MESOS-5742
> URL: https://issues.apache.org/jira/browse/MESOS-5742
> Project: Mesos
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Sunzhe
> Assignee: Sunzhe
> Labels: gpu
>
> So far, the GPU resource is not fractional, only integer values are allowed.
> But when starting agents with {{\-\-resources='gpu:1.2'}}, it can also work
> without any warning or error. And in the webui the GPU resource is `1.2`.
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