The 1.8 series automatically binds, so I suspect you are getting some cross-interference. You might try adding —bind-to none to your cmd line.
Or you could just let OMPI bind you to core anyway. > On May 11, 2015, at 9:26 PM, Chaitra Kumar <chaitragku...@gmail.com> wrote: > > Hi Jeff, > > Thanks for your reply. > The code works without any errors on MVAPICH2. Using openMPI am getting > segmentation fault. I found in the older versions of openMPI we can enable > libnuma support by using the flag '--with-libnuma'. I am using openMPI > 1.8.1. Is there an option to configure latest version of openMPI with > libnuma? I am trying to bind processes to core using the function > numa_sched_setaffinity'. > > Regards, > Chaitra > > On Mon, May 11, 2015 at 10:00 PM, Jeff Squyres (jsquyres) <jsquy...@cisco.com > <mailto:jsquy...@cisco.com>> wrote: > Can you provide a bit more detail? Is the seg fault in your code or in Open > MPI? > > Note that Open MPI uses hwloc (which likely uses libnuma) internally, too. > > > > > On May 11, 2015, at 2:17 AM, Chaitra Kumar <chaitragku...@gmail.com > > <mailto:chaitragku...@gmail.com>> wrote: > > > > Hi Team, > > > > I am trying to test an application with libnuma on openmpi 1.8.1. The code > > compiles, but at runtime am getting libnuma warning and it dies with > > segmentation fault. > > > > libnuma: Warning: cpu argument 8 is out of range > > > > -------------------------------------------------------------------------- > > mpirun noticed that process rank 1 with PID 62744 on node test-1 exited on > > signal 11 (Segmentation fault). > > -------------------------------------------------------------------------- > > > > > > System information: > > RHEL 6.6 > > GCC 4.4.7 > > open-mpi 1.8.1 > > > > This code works perfectly on MVAPICH2. > > > > How can I enable libnuma on openmpi? > > > > Any help is greatly appreciated. > > > > Regards, > > Chaitra > > > > > > > > > > _______________________________________________ > > users mailing list > > us...@open-mpi.org <mailto:us...@open-mpi.org> > > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > > <http://www.open-mpi.org/mailman/listinfo.cgi/users> > > Link to this post: > > http://www.open-mpi.org/community/lists/users/2015/05/26852.php > > <http://www.open-mpi.org/community/lists/users/2015/05/26852.php> > > > -- > Jeff Squyres > jsquy...@cisco.com <mailto:jsquy...@cisco.com> > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > <http://www.cisco.com/web/about/doing_business/legal/cri/> > > _______________________________________________ > users mailing list > us...@open-mpi.org <mailto:us...@open-mpi.org> > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > <http://www.open-mpi.org/mailman/listinfo.cgi/users> > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/05/26853.php > <http://www.open-mpi.org/community/lists/users/2015/05/26853.php> > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/05/26857.php
