Just out of curiosity, what happens when you add
-mca shmem posix
to your mpirun command line using 1.5.5?
Can you also please try:
-mca shmem sysv
I'm shooting in the dark here, but I want to make sure that the failure isn't due to a small backing store.
On Apr 16, 2012, at 8:57 AM, Gutierrez, Samuel K wrote: