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> 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> > 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 > > Subscription: 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 > > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > _______________________________________________ > 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/2015/05/26853.php >
