[petsc-users] Obtaining bytes per second

[Matthew Knepley]

On Thu, May 7, 2015 at 8:35 AM, Jed Brown <jed at jedbrown.org> wrote:

> Matthew Knepley <knepley at gmail.com> writes:
> > I think it would be much more interesting, and no more work to
> >
> >   a) Model the flop/byte \beta ratio simply
> >
> >   b) Report how close you get to the max performance given \beta on your
> > machine
>
> This is also easily gamed; just use high-memory data structures, extra
> STREAM copies, etc.
>

I completely agree that all the performance measures can be gamed, which is
why
its important to always show time to solution as well.

   Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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