[petsc-users] How to use

Matthew Knepley knepley at gmail.com
Tue Sep 30 21:15:21 CDT 2014

On Tue, Sep 30, 2014 at 9:13 PM, Sharp Stone <thronesf at gmail.com> wrote:

> Hi all,
> I have four differential equations to be solved with a linear sparse
> matrix system that has the form of "(mat)A dot (vec)X = (vec)B". For each
> node, I have dof=4. I found few tutorials or examples on the KSPSolve with
> dof>1, and I do know it's possible to solve this problem with Petsc. Are
> there any sources illustrating ksp solver with dof>1? Many thanks!

Yes, try SNES ex19.



> Sorry for the stupid questions.
> --
> Best regards,

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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