[Beowulf] Application Profiling

[Lucas Sheehan]

I was referred to this list from the SGE and Rocks cluster lists.  If
this question is inappropriate for this list I apologize.

-- original post --

I thought someone on this list might have a suggestion for me, if I'm
completely off base posting this here please let me know.

We are doing some benchmarking of our clusters and in the process of
working with our user base and discussing what types of jobs are being
run it has become apparent that its difficult to tell what kind of
precision many of our apps favor. Essentially we know our hardware
capabilities and have decent RPeak values for performance based on
single and double precision operations but its hard to tell which way
our jobs are leaning. Its either mostly single or double precision
operations or some hopefully quantifiable ratio of both. Does any know
of any tools available that we might use to help us profile our jobs,
their resource usage, single v.s. double precision operation, simple
FLOP values etc. I'm not too concerned about the performance weight of
the tool as it will only be run in test scenarios to get a feel for
what we have and not run with every job.

A help would be greatly appreciated.

Cheers,

Lucas Sheehan