On Thu, 03 Oct 2013, Stephan von Krawczynski wrote: > Does the above output mean that the cores are numbered right across the two > physical cpus? Does this mean one has to pin processes to 0,2,4,... to stay in > "short distance" to node 0 RAM?
... > If so, it would be a lot better to have them numbered 0-15 and 16-31 for > pinning. > Is there a way to achieve this? Yes, use hwloc to get the pinning masks for whatever property you want (e.g. all threads in a given core, all threads in a given node, all threads that share a given L3 cache...). http://www.open-mpi.org/projects/hwloc/ -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
