On Mon, Mar 11, 2019 at 12:09 PM Gilles Gouaillardet <gilles.gouaillar...@gmail.com> wrote: > You can force > mpirun --mca pml ob1 ... > And btl/vader (shared memory) will be used for intra node communications ... > unless MPI tasks are from different jobs (read MPI_Comm_spawn())
if i run mpirun -n 16 IMB-MPI1 alltoallv things run fine, 12us on average for all ranks if i run mpirun -n 16 --mca pml ob1 IMB-MPI1 alltoallv the program runs, but then it hangs at "List of benchmarks to run: #Alltoallv" and no tests run _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
