On 15/06/16 09:53 +0200, Arman Khalatyan wrote:

Hi,
I am looking for some solution with multiple GPUs(FX5600quadro and
TESLA2050)
The drivers are not compatible in the bare metal, Therefore I was trying to
use passthrough as described here:
http://www.ovirt.org/develop/release-management/features/engine/hostdev-passthrough/

After installing the nvidia driver on the guest everything looks nice.
After running 2 or 3 times nvidia-smi to see the GPU status, the device
disappear.
I just tested with both gpus, with different drivers from nvidia, same
situation.

My environment is host and guest-Centos7.2, ovirt 3.6.6 engine(but host has
3.6.7RC due to the fix in passthrough gui)

Are there successful stories with  GPU+Ovirt?

Actually the cards you are using should work pretty well. If I
understand correctly, the device disappears from the guest? That would
most likely be problem in NVIDIA's smi tool or drivers. Still,
supplying VDSM logs (from start to VM's destruction) from the host
could help us debug the issue.

Thanks,
Arman.



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Dr. Arman Khalatyan  eScience -SuperComputing
Leibniz-Institut für Astrophysik Potsdam (AIP)
An der Sternwarte 16, 14482 Potsdam, Germany

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