Re: [OMPI users] Strange rank 0 behavior on Mac OS

2015-03-04 Thread Ralph Castain
Have you tried just running the example codes we provide? If you run the ring_c example, with odd numbers, does it work? > On Mar 4, 2015, at 12:30 PM, Oliver wrote: > > hi all, > > I have openmpi 1.8.4 installed on a Mac latop. > > When running a mpi job on localhost for testing, I've notic

[OMPI users] Strange rank 0 behavior on Mac OS

2015-03-04 Thread Oliver
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