Hello You sent the test.output file instead of test.tar.bz2 so I can't check for sure. Anyway I guess this is yet another buggy AMD platform with magny-cours/interlagos/abu-dahbi Opterons (61xx, 62xx or 63xx).
Sometimes upgrading the BIOS/kernel helps. Sometimes not. Some L3 caches will be missing in the hwloc topology because of this bug, it's likely not important for the vast majority of HPC libraries. You may hide the warning by setting HWLOC_HIDE_ERRORS=1 in your environment. Brice Le 05/09/2014 12:06, Jean-Pierre Adam a écrit : > Hello hwloc experts > > I encounter this bug when I'm using mpirun or hwloc directly : > > **************************************************************************** > * hwloc has encountered what looks like an error from the operating > system. > * > * L3 (cpuset 0x000003f0) intersects with NUMANode (P#0 cpuset > 0x0000003f) without inclusion! > * Error occurred in topology.c line 940 > * > * Please report this error message to the hwloc user's mailing list, > * along with the output from the hwloc-gather-topology script. > **************************************************************************** > > The output of hwloc-gather-topology is attached. The OS is Centos 7. > > The tool launched with mpirun runs as expected, still the message is a > bit worrying... > > I was able to avoid this message by enabling "node interleaving" in > the bios (basically disables NUMA). In my case, I got a 5% performance > loss with that setting. It could be acceptable, but I would like to > understant what is going on. > > So is my motherboard / BIOS / OS buggy ? > > Best regards > > > _______________________________________________ > 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/2014/09/1070.php
