[petsc-users] kronecker products

[Jed Brown]

On Thu, Nov 4, 2010 at 09:58, Benjamin Sanderse <B.Sanderse at cwi.nl> wrote:

> Some matrices are just used to compute matrix-vector products, and some
> have to be solved for. That's basically it.
> The matrices are really very sparse; on the order of 10-20 diagonals
> (typically independent of problem size).
> As far as I know, reordering is hardly necessary, because I am using a
> structured grid.
>

What are the relative sizes of each piece?  How are you producing these
matrices?  How do you want the vector distributed?

Jed
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