[petsc-dev] Custom interpolation matrices for DA

Matthew Knepley knepley at gmail.com
Tue Mar 24 12:42:43 CDT 2015

Do we have something like MatSetValuesStencil() that can be used to create
and interpolation matrix? If not, this sounds like something that would be

Second, are these any examples of custom interpolation?



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
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