On 10/8/19 12:30 PM, Goetz, Patrick G wrote:
It looks like GPU resources can only be shared by processes run by the same user?
This is touched on in this bug https://bugs.schedmd.com/show_bug.cgi?id=7834 where it appears at one point MPS appeared to work for multiple users.
It may be that the side-channel attack via performance counters when sharing NVIDIA GPUs between users caused them to rethink that (speculating here, but would make a lot of sense). That was CVE‑2018‑6260 patched back in February.
All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Berkeley, CA, USA
