[nova] GPU VMs using MIG?

António Paulo antonio.paulo at cern.ch
Mon Jun 14 14:28:07 UTC 2021


Hi!

Has anyone looked into instancing VMs with NVIDIA's Multi-Instance GPU
(MIG) devices [1] without having to rely on vGPUs? Unfortunately, NVIDIA
vGPUs lack tracing and profiling support that our users need.

I could not find anything specific to MIG in the OpenStack docs but I
was wondering if doing PCI passthrough [2] of MIG devices is an option
that someone has seen or tested?

Maybe some massaging to expose the MIG as a Linux device is required [3]?

Cheers,
António

[1] https://docs.nvidia.com/datacenter/tesla/mig-user-guide/
[2] https://docs.openstack.org/nova/pike/admin/pci-passthrough.html
[3] https://docs.nvidia.com/datacenter/tesla/mig-user-guide/#device-nodes



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