On Aug 17, 2010, at 11:29 , Gijsbert Wiesenekker wrote: > I have a four-node quad core cluster. I am running OpenMPI (version 1.4.2) > jobs with Torque (version 2.4.8). I can submit jobs using > #PBS -lnodes=4:ppn=4 > And 16 processes are launched. However if I use > #PBS -lnodes=4:ppn=1 > or > #PBS -lnodes=4 > The call to MPI_Init is succesful, but the call to > MPI_Comm_size(MPI_COMM_WORLD, &mpi_nprocs) > hangs and never returns. > > Any ideas? Any workarounds? > > Gijsbert >
You may disregard this question, I was fooled by a print statement in the wrong place. Gijsbert
