Open Stack

For the record, we (i.e. Citrix) are certainly looking at exposing the GPU pass-through support in XCP (a Xen.org project that includes XenAPI) and XenServer in the Grizzly timeframe.

I now sit next to a lot of the Citrix Xen.org and XenServer people. We are all based in Cambridge, UK. However, you will probably get answers just as quickly by asking on the Xen mailing lists.

Thanks,
John

> -----Original Message-----
> From: John Paul Walters [mailto:jwalters at isi.edu]
> Sent: Thursday, August 16, 2012 4:11 PM
> To: Boris-Michel Deschenes
> Cc: Jim Fehlig; John Garbutt; openstack at lists.launchpad.net
> Subject: Re: [Openstack] What is the most commonly used Hypervisor and
> toolset combination?
> 
> Hi Boris,
> 
> We have GPU passthrough working with NVIDIA GPUs in Xen 4.1.2, if I recall
> correctly.  We don't yet have a stable Xen + Libvirt installation working, but
> we're looking at it.  Perhaps it would be worth collaborating since it sounds like
> this could be a win for both of us.
> 
> best,
> JP
> 
> 
> On Aug 16, 2012, at 9:31 AM, Boris-Michel Deschenes wrote:
> 
> > That would be great Jim,
> >
> > I've built a cloud that uses CentOS+libvirt+Xen 4.1.3 to do GPU passthrough
> and I just love to be able to use libvirt with Xen, this setup makes a lot of sense
> to me since our main, bigger cloud is the standard libvirt+KVM, using libvirt
> across the board is great for us.
> >
> > I'm following your work closely, the GPU cloud is still using libvirt+xend but
> when I move to Xen 4.2 my understanding is that I will need libvirt+xl (xenlight)
> so I guess there's still some work to be done in libvirt there...
> >
> > The reason I want to move to Xen 4.2 is the GPU passthrough of NVIDIA
> GPUs... currently, with Xen 4.1.3, I successfully passthrough ATI GPUs only.
> >
> > Boris
> >
> > -----Message d'origine-----
> > De :
> > openstack-bounces+boris-michel.deschenes=ubisoft.com at lists.launchpad.n
> > et
> > [mailto:openstack-bounces+boris-michel.deschenes=ubisoft.com at lists.lau
> > nchpad.net] De la part de Jim Fehlig Envoyé : 18 juillet 2012 17:56 À : John
> Garbutt Cc : openstack at lists.launchpad.net Objet : Re: [Openstack] What is the
> most commonly used Hypervisor and toolset combination?
> >
> > John Garbutt wrote:
> >> To my knowledge, if you want to use Xen, using XCP or XenServer (i.e. using
> XenAPI driver) is the way to go. If you look at the contributions to the drivers,
> you can have a good guess at who is using them.
> >>
> >> I know people are going into production on XenAPI, not heard about
> Xen+libvirt in production. Having said this, I have seen some fixes to Folsom
> around Xen + libvirt, I think from SUSE?
> >>
> >
> > Yes, I'm slowly working on improving support for xen.org Xen via the libvirt
> driver and hope to have these improvements in for the Folsom release.
> >
> > Regards,
> > Jim
> >
> >
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