[mpich-discuss] Logging MPI Collectives

[Pavan Balaji]

MPE uses the PMPI interface for logging; so it can't really "see" the
internal implementation of collectives.

If you are looking to profile within the MPICH2 library, you should
consider using rlog instead (details are present in the
doc/logging/logging.pdf file present in any MPICH2 release).

 -- Pavan

On 02/15/2010 07:47 PM, sanath kumar wrote:
> Hello,
>   I want to log the MPI sends and receives used within the MPI
> collective operations. Default MPE implementation just logs the
> collectives but does not log the send and receives within it. Can you
> point out how can I get to log the sends/receives within the
> collectives? I've seen the MPE code but not able to figure out which
> portion of the code requires change.
> 
> Thank you.
> 
> -- 
> SANATH KUMAR
> http://blog.ceglug.org/sanath
> 
> 
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji