dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

On 03/05/10 14:04, Anders Logg wrote:
> I've been going through all benchmarks and made changes to get
> everything to compile and run properly. I've also made adjustments to
> some parameters to get reasonable running times.
>
> I'm currently working on the parallel speedup benchmark (fem/speedup)
> but then I think we should be in pretty good shape (for now).
>
> It would be good for everyone that has any interest in the benchmark
> suite to take a look now at all the benchmarks and see if something
> can be improved. As mentioned before, Johannes will backport at least
> some of the benchmarks to earlier versions and then it becomes very
> important that we keep the benchmarks fixed. We can't artibrarily go
> in and change say a mesh size or form since that would break the
> history.
>
> So speak now or forever hold your peace.

I won't be able to look at the benchmarks for a while, but I would like 
to have benchmarks to cover some areas where I know DOLFIN could do with 
some performance improvements. Off the top of my head two areas are:

- Assembly of forms with many coefficients (calls to eval(..) are slow)

- Repeated solution of linear systems (reuse of preconditioners, reuse 
of symbolic factorisation, etc)

Garth


> The benchmarks are in the bench directory in DOLFIN and are explained
> in the README file in that same directory.
>
> The benchmarks will be available here and the results will be
> collected once every night:
>
>    http://www.fenics.org/bench/
>
> --
> Anders
>
>
>
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