I am just learning to use openmpi 1.8.4 that is installed on our cluster. I am running into a baffling issue. If I run:
mpirun -np 3 --host b1,b2,b3 hostname I get the expected output: b1 b2 b3 But if I do: mpirun -np 3 --hostfile hostfile hostname I get: b1 b1 b1 Where hostfile contains: b1 b2 b3 Any ideas what could going on? _______________________________________________ users mailing list users@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/users