[petsc-dev] preallocation

[Jed Brown]

On Tue, Sep 20, 2011 at 18:06, Matthew Knepley <knepley at gmail.com> wrote:

> I disagree with this. I think the correct reduction in complexity is for
> the DM to call all relevant versions.
>

Many people do not use the DM. I'm working with an unstructured FV code
right now that has never heard of DM. It's just a matter of keeping the
purely algebraic as simple as possible.
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