[petsc-users] How to use

[Sharp Stone]

Matt,

Thank you very much!

The ex19 used the Gauss-Seidel method. But I'm a little bit wonder whether
we have any examples of Jacobi method to solve such linear systems "(mat)A
dot (vec)X = (vec)B" with dof>1? Thanks in advance!


On Tue, Sep 30, 2014 at 10:15 PM, Matthew Knepley <knepley at gmail.com> wrote:

> 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.
>
>   Thanks,
>
>     Matt
>
>
>> 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
>



-- 
Best regards,

Feng
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