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
I opened 3726 to track this:
Any ideas what introduced this regression?