[Nek5000-users] compiler optimizations

[nek5000-users at lists.mcs.anl.gov]

Hi Dan,

Great to hear!

If you want to send the flags we could incorporate them
into makenek.

Thanks!

Paul


On Sat, 17 Aug 2013, nek5000-users at lists.mcs.anl.gov wrote:

> Hello,
>
> I have been playing with compiler flags and directives to see if I can
> improve the time-to-solution of the turbChannel example.  I have had some
> success and would like to give back to the community.  What is the best
> procedure for doing this?
>
> I'm using the Intel-13.1.3.192 compiler on a Sandybridge Xeon.
>
> baseline timing for 1000 iterations on 8 cpu is
> total time   443.08s
>
> With a few compiler directives and optimization flags I got it down to
> total time   304.52s
>
> Dan
>