[petsc-users] DMLocalToLocal with DMPlex in Fortran

[Matthew Knepley]

On Fri, Sep 30, 2022 at 4:14 PM Mike Michell <mi.mike1021 at gmail.com> wrote:

> Hi,
>
> As a follow-up to this email thread,
> https://www.mail-archive.com/petsc-users@mcs.anl.gov/msg44070.html
>
> Are DMLocalToLocalBegin() and DMLocalToLocalEnd() really available for
> DMPlex with Fortran on the latest version of PETSc (3.17.99 from GitLab)?
> Matt commented that the Fortran bindings were updated so that those
> functions must be available in the latest version of PETSc, however, it
> seems still they are not working from my test with DMPlex in Fortran. Can
> anyone provide some comments? Probably I am missing some mandatory header
> file? Currently, I have headers;
>
> #include "petsc/finclude/petscvec.h"
> #include "petsc/finclude/petscdmplex.h"
> #include "petsc/finclude/petscdmlabel.h"
> #include "petsc/finclude/petscdm.h"
>

The source for these functions is in

  src/dm/ftn-auto/dmf.c

Is it there for you? If not, you can run

  make allfortranstubs

Fortran functions are not declared, so the header should not matter for
compilation, just the libraries for linking.

  Thanks,

     Matt


> Thanks,
> Mike
>


-- 
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

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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