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Subject: Re: [OMPI users] profile the performance of a MPI code: how much traffic is being generated?
From: Samuel K. Gutierrez (samuel_at_[hidden])
Date: 2009-09-29 12:37:40


I'm writing a simple post-mortem profiling tool that provides some of
the information that you are looking for. That being said, the tool,
Loba, isn't publicly available just yet. In the mean time, take a
look at mpiP (

Samuel K. Gutierrez
Los Alamos National Laboratory
>> On Tue, Sep 29, 2009 at 10:40 AM, Eugene Loh <Eugene.Loh_at_[hidden]>  
>> wrote:
>>> to know.  It sounds like you want to be able to watch some %  
>>> utilization of
>>> a hardware interface as the program is running.  I *think* these  
>>> tools (the
>>> ones on the FAQ, including MPE, Vampir, and Sun Studio) are not of  
>>> that
>>> class.
>> You are correct. A real time tool would be best that sniffs at the  
>> MPI
>> traffic. Post mortem profilers would be the next best option I  
>> assume.
>> I was trying to compile MPE but gave up. Too many errors. Trying to
>> decide if I should prod on or look at another tool.
>> -- 
>> Rahul
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