Hi Howard, Is this new behavior?
Do you see the error if you set PSM_DEVICES=shm,self ? The PSM MTL should be setting this on its own, but maybe something changed. Andrew From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Howard Pritchard Sent: Tuesday, September 8, 2015 10:06 AM To: Open MPI Developers List Subject: [OMPI devel] psm mtl weirdness Hi PSM folks, I'm noticing some weirdness on master using the psm mtl. If I run multi-node, I don't see a problem. If I run using only a single node, however, and use more than 1 rank, then I get a timeout in psm_ep_connect. On ompi-release I also observe this problem, but it seems to be more sporadic. I don't think this has anything to do with the pmix work. I do not have access to a system using psm2, so can't check to see if the problem also occurs there. Thanks for any ideas on how to debug this. Howard