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(Updated April 6, 2016, 12:38 a.m.)

Review request for mesos, Ben Mahler, Rob Todd, and Vikrama Ditya.


Addressed all of bmahler's comments. Also determined we needed to add access to 
/dev/nvidia-uvm in addition to /dev/nvidiactl.

Summary (updated)

Fixed access to /dev/nvidia{ctl,-uvm} in Nvidia GPU isolator.

Bugs: MESOS-5115

Repository: mesos

Description (updated)

Previously, calls to 'nvidia-smi' would fail inside a container even
if access to a GPU had been granted. Moreover, access to
/dev/nvidiactl is actually required for a container to do anything
useful with a GPU even if it has access to it.

This patch explicitly grants/revokes access to /dev/nvidiactl and
/dev/nvidia-uvm as GPUs are added and removed from a container in the
Nvidia GPU isolator.

Diffs (updated)


Diff: https://reviews.apache.org/r/45715/diff/

Testing (updated)

Test in subsequent commit.


Kevin Klues

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