Kevin Klues created MESOS-5555:
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Summary: Update method of populating device entries for
`/dev/nvidia-uvm`, etc
Key: MESOS-5555
URL: https://issues.apache.org/jira/browse/MESOS-5555
Project: Mesos
Issue Type: Improvement
Reporter: Kevin Klues
Assignee: Kevin Klues
Currently, access to `/dev/nvidiactl` and `/dev/nvidia-uvm` is only granted to
/ revoked from a container as GPUs are added and removed from them. On some
level, this makes sense because most jobs don't need access to these devices
unless they are also using a GPU. However, there are cases when access to these
files is appropriate, even when not making use of a GPU. Running `nvidia-smi`
to control the global state of the underlying nvidia driver, for example.
We should add `/dev/nvidiactl` and `/dev/nvidia-uvm` to the default whitelist
of devices to include in every container when the `gpu/nvidia` isolator is
enabled. This will allow a container to run standard nvidia driver tools (such
as `nvidia-smi`) without failing with abnormal errors when no GPUs have been
granted to it. As such, these tools will now report that no GPUs are installed
instead of failing abnormally.
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