Hello, This is yet another example of buggy AMD topology information unfortunately. See http://www.open-mpi.org/projects/hwloc/doc/v1.10.1/a00028.php#faq_os_error
In your case, NUMA and processor package/socket information are conflicting because NUMA information is buggy. Upgrading the BIOS may help. Given your context, you should be able to ignore the warning by setting HWLOC_HIDE_ERRORS=1 in the environment. But make sure you don't use advanced binding options in Open MPI since most of them they need correct NUMA and/or package/socket information. Brice Le 23/02/2015 14:22, Michael F. Schönitzer a écrit : > Hi, > > in our workstation we have a problem with openmpi. The workstation was > running under Ubuntu 12.04 were we had already performance issues but > didn't got any error messages, after upgrading to Ubuntu 14.04 we get > the error message below. Using lstopo reveals that the problem was > persistent in the old system, too. > Maybe you know what to do. > > Best regards, > Michael Schönitzer > > **************************************************************************** > * hwloc has encountered what looks like an error from the operating system. > * > * object (Socket P#1 cpuset 0xffff0000) intersection without inclusion! > * Error occurred in topology.c line 853 > * > * Please report this error message to the hwloc user's mailing list, > * along with the output from the hwloc-gather-topology.sh script. > **************************************************************************** > > > > > _______________________________________________ > 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/2015/02/1154.php