My openmpi-default-hostfile has host1 slots=4 host2 slots=4 host0 slots=4 and my openmpi-mca-params.conf has rmaps_base_mapping_policy = node rmaps_base_oversubscribe = 1
If I invoke orterun -np 3 on host0, it puts rank0 on host0, rank1 on host1, rank2 on host2. I want it to put rank0 on host1, rank1 on host2, rank2 on host0 (as specified in the host file). I cannot use nolocal because I do want it to run on host0. How can localhost being rank0 be avoided without using -H? Thanks, saurabh
