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From: Rainer Keller (keller_at_[hidden])
Date: 2007-05-14 09:41:49

On Monday 14 May 2007 14:59, Jeff Squyres wrote:
> It doesn't give you stats about the underlying transport, though
> (E.g., TCP-level stats). For that, you would need to use PERUSE.
> Rainer -- can you comment on how much info the tcp BTL reports via
> On May 13, 2007, at 5:14 AM, Code Master wrote:
> > How can I profile the communication of MPI library such as number
> > of messages sent / received, UDP packet requested to receive and
> > sent and volume of data sent?
As Jeff noted, PERUSE will give You more MPI-internal information;

What You would like to see may be achieved with the
PERUSE_COMM_REQ_XFER_CONTINUE event. The registered Event handler would be
called by the ob1-pml upon every fragment being sent for a particular msg...

However, this does not have to do with the amound of underlying data being
send within the BTL (e.g. including overhead such as headers added)...
Is this, what You would be interested in?

With best regards,

Dipl.-Inf. Rainer Keller
 High Performance Computing       Tel: ++49 (0)711-685 6 5858
   Center Stuttgart (HLRS)           Fax: ++49 (0)711-685 6 5832
 POSTAL:Nobelstrasse 19                 email: keller_at_[hidden]     
 ACTUAL:Allmandring 30, R.O.030            AIM:rusraink
 70550 Stuttgart