Le 28/10/2015 18:04, Fabian Wein a écrit : > I hope I'm still on the right list for my current problem.
Hello It looks like this should go to us...@open-mpi.org now. > --------------------- > A request was made to bind a process, but at least one node does NOT > support binding processes to cpus. > > Node: leo > This usually is due to not having libnumactl and libnumactl-devel > installed on the node. > --------------------- > > I cannot find these packages for ubuntu 14.04. > > I find a lot of ubuntu deb packages on > https://launchpad.net/ubuntu/+source/numactl > But there I only find libnuma but no libnumactl. > > Where do I get the libnumactl and libnumactl-devel from? On Deb-based (Debian, Ubuntu etc), the right package name is "libnuma-dev". The OMPI message only cares about RPM distros. > Is this the wrong thread and the wrong list? Yeah, OpenMPI specific issues should go to OpenMPI list (hwloc is a subproject of the OpenMPI consortium, but the software projects are pretty much independent). Brice > I have a feeling that I'm quite close but just cannot reach it :( > > Thanks, > > Fabian > > > On 10/27/2015 04:05 PM, Brice Goglin wrote: >> I guess the next step would be to look at how these tasks are placed on >> the machine. There are 8 NUMA nodes on the machine. Maybe 9 is where it >> starts placing a second task per NUMA node? >> For OMPI, --report-bindings may help. I am not sure about MPICH. >> >> Brice >> >> >> >> Le 27/10/2015 15:52, Fabian Wein a écrit : >>> On 10/27/2015 03:42 PM, Brice Goglin wrote: >>>> I guess the problem is that your OMPI uses an old hwloc internally. >>>> That >>>> one may be too old to understand recent XML exports. >>>> Try replacing "Package" with "Socket" everywhere in the XML file. >>> >>> Thanks! That was it. >>> >>> I now get almost perfectly reproducible results. >>> >>> np speedup >>> 1 1.0 >>> 2 1.99 >>> 3 2.98 >>> 4 3.98 >>> 5 4.89 >>> 6 5.9 >>> 7 6.89 >>> 8 7.87 >>> 9 5.44 >>> 10 6.04 >>> 11 6.55 >>> 12 7.0 >>> 13 7.75 >>> 14 8.24 >>> 15 8.41 >>> 16 9.4 >>> 17 7.33 >>> 18 7.16 >>> 19 8.05 >>> 20 8.39 >>> >>> What still puzzles me is the almost perfect speedup up to eight and >>> than the >>> drop down. But for the beginning 8 is already good! >>> >>> Thanks again, >>> >>> Fabian >>> >>> _______________________________________________ >>> hwloc-users mailing list >>> hwloc-us...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users >>> Link to this post: >>> http://www.open-mpi.org/community/lists/hwloc-users/2015/10/1210.php >> >> _______________________________________________ >> hwloc-users mailing list >> hwloc-us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users >> Link to this post: >> http://www.open-mpi.org/community/lists/hwloc-users/2015/10/1210.php >> > _______________________________________________ > hwloc-users mailing list > hwloc-us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users > Link to this post: > http://www.open-mpi.org/community/lists/hwloc-users/2015/10/1212.php
