hi all, I have openmpi 1.8.4 installed on a Mac latop.
When running a mpi job on localhost for testing, I've noticed that when -np is odd number 3, 5 etc, it sometimes ran into a situation where only rank 0 is progressing, and the rest of ranks doesn't seem get to run at all ... I've examine the code many times over and couldn't see why. I am wondering if this is something else and has anyone else run into similar problem before? TIA Oliver
