[petsc-users] Local/global numbering to natural numbering?

[Justin Chang]

Or would PetscSF sort of give you that information? Say if I had auxiliary
data associated for each vertex point, I would first distribute the mesh
via DMPlexDistribute, obtain the PetscSF from that routine, and then call
DMPlexDistributeField for the vector containing said auxiliary data?

Thanks,
Justin

On Sun, Nov 9, 2014 at 4:10 AM, Justin Chang <jychang48 at gmail.com> wrote:

> Hi all,
>
> Given the local/global numbering of vector/array entries generated after
> DMPlexDistribute(), is it possible to obtain the "natural numbering"? That
> is, the numbering of the vertex points before the mesh was distributed. I
> see that this has been discussed thoroughly for DMDA's but is it possible
> to obtain some sort of natural numbering for DMPlex?
>
> For instance, when I call DMPlexCreateFromDAG() or
> DMPlexCreateFromCellList() I would consider vertexCoords[] to be of
> "natural numbering" since it's the original ordering specified by the mesh
> generator.
>
> Thanks,
> Justin
>
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