Thanks all,

As asked the reason of such calculation of non blocking communication, the main reason is that I want to look into the program as how much it percent time is consumed on communication alone, computation alone and the intersection of both.

Bibrak Qamar
Undergraduate Student BIT-9
Member Center for High Performance Scientific Computing
NUST-School of Electrical Engineering and Computer Science.


On Thu, Feb 3, 2011 at 5:08 AM, Eugene Loh <eugene.loh@oracle.com> wrote:
Again, you can try the Peruse instrumentation.  Configure OMPI with --enable-peruse.  The instrumentation points might help you decide how you want to define the time you want to measure.  Again, you really have to spend a bunch of your own time deciding what is meaningful to measure.

Gustavo Correa wrote:

However, OpenMPI may give this info, with non-MPI (hence non-portable) functions, I'd guess.

From: Eugene Loh <eugene.loh@oracle.com>

Anyhow, the Peruse instrumentation in OMPI might help.


_______________________________________________
users mailing list
users@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users