>> You sound like our vendors, "what is your app" > > ;-) I used to be one. > > Ideally OMPI should do the switch between MXM/RC/XRC internally in the > transport layer. Unfortunately, > we don't have such smart selection logic. Hopefully IB vendors will fix some > day.
I actually looked in the openib-hca.ini (working from memory) to try and find what the default queues were, and I actually couldn't figure it out. The ConnectX entry doesn't have a default, and the 'default default' also doesn't have an entry. I need to dig into ompi_info, got distracted by an intel compiler bug, ADD for admin/user support folks. > >> >> Note most of our users run just fine with the standard Peer-Peer queues, >> default out the box OpenMPI. > > The P2P queue is fine, but most like using XRC your users will observe better > performance. This is not just scalability. Cool thanks for all the input, I wonder why peer-to-peer is the default, I know XRC requires hardware support, > > - Pasha > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
