For now, you have to look at PCI ids. NVIDIA GPUs have "10de:xxxx" as vendor/device ids, that's what is shown in your boxes on the right.
We should have better GPU support in the future. Right now, we only use what Linux knows, and it knows pretty much nothing about NVIDIA GPUs because of the closed-source driver :/

Le 28/08/2012 14:18, Gabriele Fatigati a écrit :
Dear hwloc user,

I'm using hwloc 1.5. I would to see how GPUs are connected with the processor socket using lstopo command. 

I attach the figure. The system has two GPUs, but I don't understand how to find that information from PCI boxes.

Thanks in advance.

Ing. Gabriele Fatigati

HPC specialist

SuperComputing Applications and Innovation Department

Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy

www.cineca.it                    Tel:   +39 051 6171722

g.fatigati [AT] cineca.it          

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