[petsc-users] Options to set when solving Ax=b if matrix A changes its non-zero position at each solve

[Jed Brown]

On Sun, Jun 10, 2012 at 11:09 AM, TAY wee-beng <zonexo at gmail.com> wrote:

> I realise that for my problem, instead of the original 5 non-zero
> locations (east, west, north, south, center) for the stencil, I now have 4
> more (east-east, west-west etc). So now I call MATCREATEAIJ with dnz + o_nz
> = 9 (instead of previously 5). Is that correct?


yes
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