Hello all (Newbie warning! Sorry :-( )
Let's say my cluster has 7 nodes, connected via IP-over-Ethernet for control traffic and some kind of raw verbs (or anything else such as SRIO) interface for data transfer. Let's say my host file chooses 4 out of the 7 nodes for an MPI job, based on the IP address, which are assigned to the Ethernet interfaces. My question is: where in the code does this mapping between IP-to-whatever_interface_is_used_for_MPI_Send/Recv is determined, such as only those chosen nodes receive traffic over the verbs interface? Thanks in advance Durga We learn from history that we never learn from history.
