[petsc-dev] DMViewFromOptions() in fortran

[Matthew Knepley]

On Tue, Mar 25, 2014 at 5:37 PM, Adrian Croucher
<a.croucher at auckland.ac.nz>wrote:

> It looks like the fortran interface to DMViewFromOptions() is missing- on
> linking, I get an error "undefined reference to `dmviewfromoptions_'".
>
> If that's the case, is there any chance an interface could be added?
>

Its a little weird. The function is defined by

  PETSC_STATIC_INLINE PetscErrorCode DMViewFromOptions(DM A,const char
prefix[],const char name[]) {return
PetscObjectViewFromOptions((PetscObject)A,prefix,name);}

so I think it might be better to just call the PetscObject version from
Fortran.


> Or alternatively, is there any other way of viewing a DMPlex that's been
> distributed using DMPlexDistribute()? DMView just seems to give me the cell
> counts as if the DMPlex was still all on rank 0. There doesn't seem to be
> anything in the docs about DMViewFromOptions() yet, so I'm just guessing
> what it's for from the examples.
>

No, there is another problem here. DMViewFromOptions() just calls DMView().
Are you sure the viewer was using PETSC_COMM_WORLD?

Can you run an example, like SNES ex12, and give -dm_view in parallel?

  Thanks,

     Matt


> Thanks!
>
> Cheers, Adrian
>
> --
> Dr Adrian Croucher
> Department of Engineering Science
> University of Auckland
> New Zealand
> tel 64-9-373-7599 ext 84611
>
>


-- 
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
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