[petsc-users] Coarsening vectors

[Jed Brown]

On Fri, Apr 6, 2012 at 18:09, Mohamad M. Nasr-Azadani <mmnasr at gmail.com>wrote:

> Thanks Jed. Makes sense.
> For simple copying values, is there anyway around it so we don't create
> the matrix?
>

No, but some implementations could define the matrix without storing
entries, so it wouldn't imply extra storage. (Whether this is practical or
not depends on the discretization.)
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