On 22 May 2012 20:22, Rayson Ho <[email protected]> wrote: > On Tue, May 22, 2012 at 2:02 PM, William Hay <[email protected]> wrote: >> Well currently we have our prolog chgrp the appropriate number of >> /dev/nvidia? files to the group associated with the job thereby >> controlling access to GPUs. > > William, > > That's why we are planning to support device whitelisting using the > Device Whitelist Controller: > > http://www.kernel.org/doc/Documentation/cgroups/devices.txt > > Besides GPU devices, there is also the use case for whitelisting > InfiniBand interfaces. > > >> I'm currently setting up $TMPDIR as a separate tmpfs file system for >> each job and am chgrping that to the job's associated group >> in the process. > > In cgroups, there is also the namespace controller for this purpose. Filesystem namespaces got merged into cgroups? I thought they were entirely separate.
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