Hi,

thanks for the reply.

How can cuda branch help me? lstopo output of that branch is the same of
the trunk.

Another question: the GPU IDs are the same (10de: 06d2). How is it possible?

Thanks.

2012/8/28 Samuel Thibault <samuel.thiba...@inria.fr>

> Brice Goglin, le Tue 28 Aug 2012 14:43:53 +0200, a écrit :
> > > $ lstopo
> > >   Socket #0
> > >   Socket #1
> > >     PCI...
> > > (connected to socket #1)
> > >
> > > vs
> > >
> > > $ lstopo
> > >   Socket #0
> > >   Socket #1
> > >   PCI...
> > > (connected to both sockets)
> >
> > Fortunately, this won't occur in most cases (including Gabriele's
> > machines) because there's a NUMAnode object above each socket.
>
> Oops, I actually meant NUMAnode above
>
> > Both the socket and the PCI bus are drawn inside the NUMA box, so
> > things appear OK in graphics to.
>
> Indeed, if the PCI bus was connected to one NUMAnode/socket only, it
> would be drawn inside, which is not the case.
>
> > Gabriele, assuming you have a dual Xeon X56xx Westmere machine, there
> > are plenty of such platforms where the GPU is indeed connected to both
> > sockets. Or it could be a buggy BIOS.
>
> Agreed.
>
> Samuel
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-- 
Ing. Gabriele Fatigati

HPC specialist

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