[mpich-discuss] Logging MPI Collectives

[sanath kumar]

Oh I understand. I read through the logging.pdf file. RLOG is independent of
MPE right? My doubt is if RLOG can do the job of MPE, what is the need for
MPE? Can you point out some differences between the both? Thank you.

On Tue, Feb 16, 2010 at 8:10 AM, Pavan Balaji <balaji at mcs.anl.gov> wrote:

>
> 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
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>



-- 
SANATH KUMAR
http://blog.ceglug.org/sanath
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