[petsc-users] TS tutorial ex11 in Fortran

[Barry Smith]

   PETSc Fortran interfaces are a combination of automatically generated and manually generated. 

   For any C PETSc function if the manual page begins with /*@  it generates the Fortran interface automatically (make allfortranstubs).  If it begins /*@C then either the Fortran interface is done manually or is missing. 

   C functions that have character string arguments or function arguments (or a few other special cases) need to be manually provided.  The automatically generated stubs go in the directory ftn-auto while manually generated ones go in the directory fin-custom.

   Perhaps you could first generate a list of "missing" Fortran stubs and then for each stub determine why it is missing and if it can be provided. Some are likely easy to provide but a few (involving function arguments) will be more involved. Once you have all the stubs available translating ex11.c becomes straightforward.

  Barry


> On Dec 12, 2020, at 9:30 AM, Thibault Bridel-Bertomeu <thibault.bridelbertomeu at gmail.com> wrote:
> 
> Dear all, 
> 
> Is there somewhere a version of the TS tutorial ex11.c in Fortran ?
> I am looking into building in F90 (let's say that it is an unavoidable constraint) an unstructured 3D solver of the Euler equations using the "new" features of PETSc - mostly DMPlex & PetscFV - but I think there are some interfaces missing and I find it hard to find workarounds in Fortran. I would be grateful if anyone could please give me some pointers ...
> 
> Thank you very much in advance,
> 
> Thibault Bridel-Bertomeu
> —
> Eng, MSc, PhD
> Research Engineer
> CEA/CESTA
> 33114 LE BARP
> Tel.: (+33)557046924
> Mob.: (+33)611025322
> Mail: thibault.bridelbertomeu at gmail.com <mailto:thibault.bridelbertomeu at gmail.com>

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