[petsc-dev] VecNestSetSubVec for VecNest.

[Jed Brown]

On Mon, Oct 17, 2011 at 20:55, Vijay S. Mahadevan <vijay.m at gmail.com> wrote:

> Actually, that is quite consistent in philosophy to the merge
> operation I'm trying to perform. SEQ->MPI might still be an invalid
> operation for Vec though. Perhaps with a PETSC_DECIDE for local, it
> still could be relevant ? You can definitely specialize this for
> MPI->SEQ and Nest Vectors with a new VecReuse enum with relevant
> names.
>

I would not try to simultaneously change the distribution of the Vec. That's
what VecScatter is for. VecConvert() would keep the same distribution and
give you back a semantically identical vector of a different type.
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