I'm working on an ethernet cluster that uses virtual eth0:* interfaces on the compute nodes for IPMI and system management. As described in Trac ticket #3339 (https://svn.open-mpi.org/trac/ompi/ticket/3339 ), this setup confuses the TCP BTL which can't differentiate between the physical and virtual interfaces. Verbose BTL output confirms this, showing attempted communication on both the physical and virtual IP addresses followed by a hang.
Has there been any progress on this bug? Or has anyone managed to figure out a workaround? Thanks, Kris