[petsc-users] Shared vertices of DMPlex mesh

[Matthew Knepley]

On Thu, May 30, 2019 at 6:21 PM Swarnava Ghosh via petsc-users <
petsc-users at mcs.anl.gov> wrote:

> Hi PETSc users and developers,
>
> I am trying to find the list of vertices of a DMPlex mesh that is shared
> among processes and also the ranks of these processes. Thoughts on how to
> do this would be helpful.
>

The list of ghost points for a process is in the pointSF,
DMPlexGetPointSF(). You can get the owned points
which are ghosts on other processes using


https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PetscSF/PetscSFComputeDegreeBegin.html

Does that make sense?

  Thanks,

    Matt


> Sincerely,
> SG
>


-- 
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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