[Mesa-users] Opacity hook in parallel

[Aaron Dotter]

Hi Lynn,

Have you set OMP_NUM_THREADS to a number greater than 1 before you run
MESA?

The code that calls the opacity routine, whether the standard or the other
version, is wrapped in an OMP PARALLEL loop.  You can find examples of this
in star/private/micro.f90 (look for do_kap_for_cell and routines that call
it).

Aaron



On Tue, Jul 14, 2020 at 4:56 PM Buchele, Lynn via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Hi all,
> I am working on plugging an external opacity code into MESA. I have the
> code compiling and running, however when I use the other kap hook in
> run_star_extras.f, MESA seems to only be running one thread.  When getting
> the external opacity code to run in parallel on its own, I did so by using
> a parallel do loop over the set of temperature and density points, but it
> seems like the other kap hook is only called for one zone at a time. My
> question is, can MESA call the other kap routine in parallel, or do I need
> to set up the kap routine to be parallelized internally?
>
> Some more details that might be important: I'm working with version 12778,
> and the most recent release of the SDK.
> Thanks for the help,
> Lynn Buchele
>
>
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