[petsc-users] KSP solver and Distributed arrays

[Matthew Knepley]

Yes that is possible. The solver does not know about ghost nodes.

   Matt

On Mon, Dec 13, 2010 at 8:42 PM, Mohamad M. Nasr-Azadani
<mmnasr at gmail.com>wrote:

> Hi guys,
>
> A simple question.
> Can I solve a linear system [A]{x} = {b} using KSP solvers using Matrix and
> rhs, solution vectors with different number of ghost nodes (width)?
> As an example, can it be possible to solve for
> vector {x} DA, width=3, STAR stencil,
> [A] DA, width=1, STAR stencil
> {b} DA, width=1, STAR stencil
>
> I am suspecting that it is not possible.
>
> Thanks,
> Mohamad
>
>


-- 
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
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