[petsc-dev] DMCreateMatrix_Shell

Matthew Knepley knepley at gmail.com
Fri Feb 8 05:37:57 CST 2019


On Fri, Feb 8, 2019 at 6:30 AM Stefano Zampini via petsc-dev <
petsc-dev at mcs.anl.gov> wrote:

> I don’t understand the need of these checks (tacky and incomplete…, as per
> the comment)
>
>
> https://bitbucket.org/petsc/petsc/src/75aeaa18afd73be7f3020f94b788241b9e0ba3d7/src/dm/impls/shell/dmshell.c#lines-197
>
> Why are these checks needed? I’m inclined to remove these lines, but I
> would like some comments before doing it.
>

This even looks wrong to me. Why would we accept a type different from the
actual matrix type?

   Matt

-- 
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.cse.buffalo.edu/~knepley/>
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