Re: [Libmesh-devel] Profiling libmesh

[Derek G. <fri...@gm...>]

Generally we are recommending:

Linux: OpenSpeedShop and Intel VTune
Mac: Instruments (It's a tool that comes with XCode)

Derek
On Fri, Jul 7, 2017 at 2:11 PM Roy Stogner <roy...@ic...> wrote:

>
> On Fri, 7 Jul 2017, Fabio Canesin wrote:
>
> > I`m going some profiling of our code with focus on energy and just
> > wanted to know if there is any recommended method, library or
> > something that has been a wish in this regards.
>
> For CPU-limited parts of the code, perf is very useful.  I believe
> our "oprofile" compilation method generates executables that perf (or
> oprofile, of course) is happy with.
>
> valgrind is extremely useful, but only after you've generated test
> cases that are simultaneously fast enough to run through valgrind and
> still representative of real problems, which may be trivial or may be
> impossible for you.
>
> For MPI-limited parts of the code, I think the INL folks have some
> experience; hopefully they'll chime in.
> ---
> Roy
>
>
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