Hi, per https://www2.cisl.ucar.edu/resources/computational-systems/cheyenne/running-jobs/pbs-pro-job-script-examples, you can try
#PBS -l select=2:ncpus=16:mpiprocs=2:ompthreads=8 Cheers, Gilles On Tue, Nov 14, 2017 at 4:32 PM, Anil K. Dasanna <anil.anilnagu...@gmail.com> wrote: > Hello all, > > I am relatively new to mpi computing. I am doing particle simulations. > So far, I only used pure mpi and I never had a problem. But for my system, > its the best if one uses hybrid programming. > But I always fail to correctly bind all processes and receive binding errors > from cluster. > Could one of you please clarify correct parameters for mpirun for below two > cases: > > 1) I would like to use lets say two mpi tasks and 16 processors as openmp > threads. > I request nodes:2:ppn=16. > 2) For the same case, how should i give parameters such that i have 4 mpi > tasks and > 8 openmp threads. > > I also tried options with --map-by and it happened that sometimes both mpi > tasks are being selected > from same node and other node is idle. I really appreciate your help. > And my openmp version is 1.8. > > > -- > Kind Regards, > Anil. > ********* > "Its impossible" - said Pride > "Its risky" - said Experience > "Its pointless" - said Reason > "Give it a try" - whispered the heart > ********* > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
