Please take me off distribution. -----Original Message----- From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Suraj Prabhakaran Sent: Thursday, February 20, 2014 1:14 PM To: Open MPI Developers Subject: Re: [OMPI devel] MPI_Comm_spawn under Torque
I am using 1.7.4! On Feb 20, 2014, at 7:00 PM, Ralph Castain wrote: > What OMPI version are you using? > > On Feb 20, 2014, at 7:56 AM, Suraj Prabhakaran <suraj.prabhaka...@gmail.com> wrote: > >> Hello! >> >> I am having problem using MPI_Comm_spawn under torque. It doesn't work when spawning more than 12 processes on various nodes. To be more precise, "sometimes" it works, and "sometimes" it doesn't! >> >> Here is my case. I obtain 5 nodes, 3 cores per node and my $PBS_NODEFILE looks like below. >> >> node1 >> node1 >> node1 >> node2 >> node2 >> node2 >> node3 >> node3 >> node3 >> node4 >> node4 >> node4 >> node5 >> node5 >> node5 >> >> I started a hello program (which just spawns itself and of course, the children don't spawn), with >> >> mpiexec -np 3 ./hello >> >> Spawning 3 more processes (on node 2) - works! >> spawning 6 more processes (node 2 and 3) - works! >> spawning 9 processes (node 2,3,4) - "sometimes" OK, "sometimes" not! >> spawning 12 processes (node 2,3,4,5) - "mostly" not! >> >> I ideally want to spawn about 32 processes with large number of nodes, but this is at the moment impossible. I have attached my hello program to this email. >> >> I will be happy to provide any more info or verbose outputs if you could please tell me what exactly you would like to see. >> >> Best, >> Suraj >> >> <hello.c>_______________________________________________ >> devel mailing list >> de...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/devel > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel _______________________________________________ devel mailing list de...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/devel
