[petsc-users] jacobians for multicomponent problems

[Gideon Simpson]

Yes, is there and example for this?

-gideon

> On Jun 23, 2015, at 11:05 PM, Matthew Knepley <knepley at gmail.com> wrote:
> 
>> On Tue, Jun 23, 2015 at 7:52 PM, Gideon Simpson <gideon.simpson at gmail.com> wrote:
>> Suppose I have a problem for which the field variable has multiple components, in this case real and imaginary parts, and I have created a DM with two degrees of freedom.  When assembling a Jacobian associated with a nonlinear problem on this data, is there any data management accounting for the different components that makes this “easier?”
> 
> DMDA knows about components so that MatStencil has a .c slot for indices. Is that what you mean?
> 
>   Thanks,
> 
>     Matt
>  
>> -gideon
>> 
> 
> 
> 
> -- 
> 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20150623/2814401d/attachment.html>