Hello, I just tried to run openmpi-1.7.2 over chelsio's IWARP device, and it no longer works. It appears that 1.7.2 fails to use the RDMACM CPC. I guess it is trying to use OOB, which is IB-specific. If I explicitly specify the RDMACM CPC via '--mca btl_openib_cpc_include rdmacm' then it works. This is a regression from 1.7.1, I think. And affects all iWARP devices because iWARP requires the RDMACM CPC.
I opened 3726 to track this: https://svn.open-mpi.org/trac/ompi/ticket/3726 Any ideas what introduced this regression? Steve.
