Le 13/12/2011 16:22, Jeff Squyres a écrit : > > I can't speak for GPUs, but I think the PCI information will be useful to > know what devices are close to what PUs / NUMA nodes. That information can > be used to make decisions about binding, for example (i.e., you want to be > "close" to the specific PCI resources that you'll be using).
In most cases, you don't need PCI support for this, you juste manipulate a cuda device, an ibv_device, a MX endpoint, ... and use one of the inline helpers to get the corresponding locality (a cpuset). Brice
