On Mon, 7 Jul 2008, Terry Dontje wrote:
Just curious has anyone done comparisons of latency measurements as one changes the size of a job. That is changing the size of the job (and number of nodes used) and just taking the half roundtrip latency of two of the processes in the job. I am roughly seeing an addition of 5% to the latency for each node added. This is with the TCP and Udapl BTLs. I am curious whether other BTLs have similar issues and if doing some sort of directed polling would help matters?
Is this on Solaris, Linux, or both? Brian