[petsc-dev] PetscSection

[Jed Brown]

On Thu, Nov 8, 2012 at 11:32 PM, Matthew Knepley <knepley at gmail.com> wrote:

> They actually have topology, and we do integrals on them, and they get
> output. Using
> IS, as I said to Barry, is not good enough.
>

Because you want to restrict the contributions back only to the feature.
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