[petsc-users] PetscSection: Fortran interfaces

[Matthew Knepley]

Can you give us a simple code that is not working for you?  My test should
work

  src/dm/impls/plex/tests/ex26f90

  Thanks,

     Matt

On Sat, Feb 3, 2024 at 11:36 AM Barry Smith <bsmith at petsc.dev> wrote:

>
>   The Fortran "stubs" (subroutines) should be in
> $PETSC_ARCH/src/vec/is/section/interface/ftn-auto/sectionf.c and compiled
> and linked into the PETSc library.
>
>   The same tool that builds the interfaces in
> $PETSC_ARCH/src/vec/f90-mod/ftn-auto-interfaces/petscpetscsection.h90,
> also builds the stubs so it is surprising one would exist but not the other.
>
>   Barry
>
>
> > On Feb 3, 2024, at 11:27 AM, Martin Diehl <martin.diehl at kuleuven.be>
> wrote:
> >
> > Dear PETSc team,
> >
> > I currently can't make use of Fortran interfaces for "section".
> > In particular, I can't see how to use
> >
> > PetscSectionGetFieldComponents
> > PetscSectionGetFieldDof
> > PetscSectionGetFieldOffset
> >
> > The interfaces for them are created in $PETSC_ARCH/src/vec/f90-mod/ftn-
> > auto-interfaces/petscpetscsection.h90, but it seems that they are not
> > exposed to the public.
> >
> > Could you give me a hint how to use them or fix this?
> >
> > with best regards,
> > Martin
> >
> >
> > --
> > KU Leuven
> > Department of Computer Science
> > Department of Materials Engineering
> > Celestijnenlaan 200a
> > 3001 Leuven, Belgium
> >
>
>

-- 
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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