[petsc-users] *****SPAM*****Re: how to check if cell is local owned in DMPlex

[Matthew Knepley]

On Mon, Feb 19, 2018 at 3:11 PM, Danyang Su <danyang.su at gmail.com> wrote:

> Hi Matt,
>
> Would you please let me know how to check if a cell is local owned? When
> overlap is 0 in DMPlexDistribute, all the cells are local owned. How about
> overlap > 0? It sounds like impossible to check by node because a cell can
> be local owned even if none of the nodes in this cell is local owned.
>

If a cell is in the PetscSF, then it is not locally owned. The local nodes
in the SF are sorted, so I use
PetscFindInt (
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscFindInt.html
).

  Thanks,

    Matt


> Thanks,
>
> Danyang
>
-- 
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.caam.rice.edu/~mk51/>
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