[Beowulf] Measuring port to port latency

[Carsten Aulbert]

Hi,

since the rush of emails seems to be over right now, I would like to
start another thread. How are you measuring port to port latency in your
network easily?

So far, I have found a small MPI-pingpong code at

http://cluster.fisica.unam.mx/curso/mpi_intro/para_pingpong.html

as well as netpipe at

http://www.scl.ameslab.gov/Projects/Netpipe/

They look fine on their own, but since I'm just starting, any opinions?

Cheers

Carsten