Hi what ofed/mofed are you using? what HCA, distro and command line? M
On Wed, Jun 25, 2014 at 1:40 AM, Maxime Boissonneault < maxime.boissonnea...@calculquebec.ca> wrote: > What are your threading options for OpenMPI (when it was built) ? > > I have seen OpenIB BTL completely lock when some level of threading is > enabled before. > > Maxime Boissonneault > > > Le 2014-06-24 18:18, Fischer, Greg A. a écrit : > > Hello openmpi-users, > > > > A few weeks ago, I posted to the list about difficulties I was having > getting openib to work with Torque (see “openib segfaults with Torque”, > June 6, 2014). The issues were related to Torque imposing restrictive > limits on locked memory, and have since been resolved. > > > > However, now that I’ve had some time to test the applications, I’m seeing > abysmal performance over the openib layer. Applications run with the tcp > btl execute about 10x faster than with the openib btl. Clearly something > still isn’t quite right. > > > > I tried running with “-mca btl_openib_verbose 1”, but didn’t see anything > resembling a smoking gun. How should I go about determining the source of > the problem? (This uses the same OpenMPI Version 1.8.1 / SLES11 SP3 / GCC > 4.8.3 setup discussed previously.) > > > > Thanks, > > Greg > > > _______________________________________________ > users mailing listus...@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/2014/06/24697.php > > > > -- > --------------------------------- > Maxime Boissonneault > Analyste de calcul - Calcul Québec, Université Laval > Ph. D. en physique > > > _______________________________________________ > 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/2014/06/24698.php >
