Hi Bernie,
You may specify which BTLs to use at runtime using an mca parameter:
mpirun -np 2 -mca btl self,mvapi ./my_app
This specifies to only use self (loopback) and mvapi.
You may want to also use sm (shared memory) if you have multi-core or
multi-proc.. such as:
mpirun -np 2 -mca btl s
I'm running on a cluster with mvapi. I built with mvapi and it runs,
but I want to make absolutely sure that I'm using the IB interconnect
and nothing else. How can I tell specifically what interconnect I'm
using when I run.
Bernie Borenstein
The Boeing Company
