On April 12, 2020 7:36:23 PM GMT+03:00, tho...@hoberg.net wrote:
>Hi Strahil, 
>
>color me surprised, too, especially considering where things are
>supposed to go in terms of roadmap.
>
>Yet again, both oVIrt and Docker could be excused to think that they
>"own the hardware" they are running on, because it's a rather natural
>assumption, even if there are good reasons to run VMs and containers
>side-by-side as well as nested.
>
>Yes, I believe, I have also done the reverse, put Docker on a system
>that was already running as oVirt compute host and it wasn't with
>better results, either. The biggest challenge is to repairing the node,
>without having to re-install the whole thing and I have gone through
>quite a few wobbles there, with colleagues who weren't too appreciative
>of having their ML jobs fail (those tend to be rather lenghty...)
>
>I've managed to get CUDA work on KVM VMs twiddling the XML config files
>in these ways documented on the Web. But with oVirt those KVM XML
>config files get generated on the fly in Python and I'd have to fiddle
>with the code which does that.
>
>Actually I *did* try doing that at one point in time about a year or
>two ago, but I never found the right place, where that code actually
>was taken from. You see, there are copies of that code on every node,
>but also on the management engine. And you know how Ansible squirts
>code from machine to machine to do its magic, so that's were I stopped
>at one point, because running ML workloads containerized was more
>natural anyway and I was happy to have CPU-only VMs at their side.
>
>Besides GPU access also disables live-migration and the abillity to
>move these long-running functional VMs around to manage resources for
>ML jobs is exactly what attracts me to oVirt.
>
>Currently I am mostly probing around here, to see if what I try would
>be considered totally esoteric or irresponsible or if it's worth
>reporting as a bug.
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Actually,

Is this a bug or not ... I have no idea.

Have  you checked  if Openstack is your thing in case oVirt cannot cover your 
needs?

Best Regards,
Strahil Nikolov
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