I am writing up some interconnect/network debugging software that is centered around ompi. What is the best set of functions to use to get the best bandwidth and latency numbers for openmpi and why? I've been asking around at work and some people say just send/recieve, though some of the micro benchmarks I have looked at in the past used isend/irecv. Can someone shed some light on this (or propose more methods)?
Thanks, josh
