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.
> ****************************************************************************
>
>
>
>
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