[petsc-users] difference between left and right pc

[Klaij, Christiaan]

> > I can't do that, it's a matshell.
>
>
> You can use MatComputeExplicitOperator or MatFDColoring to get the entries.
> Also, make sure the MATSHELL is really, truly a linear operator. You'll get
> very confusing results if you accidentally leave some nonlinearity inside
> that function.

Thanks for pointing this out, very handy indeed for debugging shells.


dr. ir. Christiaan Klaij
CFD Researcher
Research & Development
E mailto:C.Klaij at marin.nl
T +31 317 49 33 44

MARIN
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