[petsc-users] jacobians for multicomponent problems

[Matthew Knepley]

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/20150623/30705ea3/attachment-0001.html>