On Oct 20, 2015, at 4:35 PM, Paul Hargrove <phhargr...@lbl.gov> wrote: > > As an example, I might have two ethernet cards, one of which is a Cisco VNIC. > I would want be able to control which BTL or MTL is used on those NICs > independently, including the option to disable use of one or the other. > I do not want to learn distinct include/exclude MCA params for every BTL and > MTL to accomplish that.
Hmm. I think heterogeneous multirail is still pretty uncommon. It might still be ok to force users (or better yet, their admins -- via the global mca-params.conf file) to use level 3 to precisely specify which network / OMPI API to use (e.g., BTL, MTL, ...etc.). -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/