Won't help him. aprun does not support dynamics. -Nathan
On Thu, Jun 11, 2015 at 12:43:38PM -0400, Joshua Ladd wrote: > Ken, > > Could you try to launch the job with aprun instead of mpirun? > > Thanks, > > Josh > On Thu, Jun 11, 2015 at 12:21 PM, Howard Pritchard <hpprit...@gmail.com> > wrote: > > Hello Ken, > Could you give the details of the allocation request (qsub args) > as well as the mpirun command line args? I'm trying to reproduce > on the nersc system. > It would be interesting if you have access to a similar size non-cray > cluster if you get the same problems. > Howard > 2015-06-11 9:13 GMT-06:00 Ralph Castain <r...@open-mpi.org>: > > I don't have a Cray, but let me see if I can reproduce this on > something else > > > On Jun 11, 2015, at 7:26 AM, Leiter, Kenneth W CIV USARMY ARL (US) > <kenneth.w.leiter2....@mail.mil> wrote: > > > > Hello, > > > > I am attempting to use the openmpi development master for a code > that uses > > dynamic process management (i.e. MPI_Comm_spawn) on our Cray XC40 at > the > > Army Research Laboratory. After reading through the mailing list I > came to > > the conclusion that the master branch is the only hope for getting > this to > > work on the newer Cray machines. > > > > To test I am using the cpi-master.c cpi-worker.c example. The test > works > > when executing on a small number of processors, five or less, but > begins to > > fail with segmentation faults in orted when using more processors. > Even with > > five or fewer processors, I am spreading the computation to more > than one > > node. I am using the cray ugni btl through the alps scheduler. > > > > I get a core file from orted and have the seg fault tracked down to > > pmix_server_process_msgs.c:420 where req->proxy is NULL. I have > tried > > reading the code to understand how this happens, but am unsure. I do > see > > that in the if statement where I take the else branch, the other > branch > > specifically checks "if (NULL == req->proxy)" - however, no such > check is > > done the the else branch. > > > > I have debug output dumped for the failing runs. I can provide the > output > > along with ompi_info output and config.log to anyone who is > interested. > > > > - Ken Leiter > > > > _______________________________________________ > > 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/2015/06/27094.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/2015/06/27095.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/2015/06/27098.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/2015/06/27100.php
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