[petsc-users] High-dimensional DMDA

Matthew Knepley knepley at gmail.com
Tue Oct 17 16:06:15 CDT 2017

On Tue, Oct 17, 2017 at 5:01 PM, Jed Brown <jed at jedbrown.org> wrote:

> Tobin Isaac <tisaac at cc.gatech.edu> writes:
> > Which is something so rote that creating DTFD to convert the pointwise
> > residuals/jacobians into stencils would go along way towards unifying
> > DMDA and DMPlex in a single useful interface.
> On a related topic, I have reason to add Fornberg's algorithm for
> computing finite difference weights to DMDT.  (It's more stable than the
> usual Vandermonde approach.)  I'd imagine some users would appreciate
> that to take some of the mystery/effort out of the design of higher
> order FD methods.

That would be good.

Is there a reason not to do all DMDA computation with p4est? We could
the refinement level and have the forest make the decomposition.


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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