[petsc-dev] DMDA_*PERIODIC and DMDA_XYZGHOSTED

[Jed Brown]

On Tue, Dec 7, 2010 at 22:40, Dmitry Karpeev <karpeev at mcs.anl.gov> wrote:

> And yet DMDA already defines this local fine-granularity "stencil" access.
> Where would it go, if not in the DM?  In my opinion this is part of the
> function space definition:
> it generalizes VecGetArray to something more geometric.
>

I just think it should be a DM-level call.  Not VecGetUberCustomIterator.
 Perhaps I'm wrong, but I think it belongs in the DM.

Not all DMs have to implement this.
>

Maybe that's what you were saying too.

Jed
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