[petsc-dev] PetscSection

[Matthew Knepley]

On Fri, Nov 9, 2012 at 9:46 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
> On Nov 9, 2012, at 8:42 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
>
>> On Fri, Nov 9, 2012 at 8:39 PM, Matthew Knepley <knepley at gmail.com> wrote:
>> You are both right :) I don't care where we put them, but I want BCs
>> and fields. However, this is no problem.
>> Right now I do BCs and fields as PetscSections held inside the primary
>> section. If IS can do what PetscSection
>> can do, I can jsut use another IS for each one.
>>
>> Convergence!
>>
>
>    Write it up!   :-)

In the manual section on Unstructured Grids :)

   Matt

>>
>> I actually like it where it is. Stick with DMComplexVecGetClosure()
>> with no section argument, and then
>> the DM holds an IS++.
>>
>> Cool, now the "normal" user doesn't even see the ++IS.
>



--
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