[petsc-users] Matrix Sparsity

[Jed Brown]

On Wed, Apr 13, 2011 at 11:08, <domenico.borzacchiello at univ-st-etienne.fr>wrote:

> [0] MatAssemblyEnd_SeqAIJ(): Maximum nonzeros in any row is 500
>

What discretization are you using?


>
> How can I make sure that the correct sparsity patter is formed while still
> using the DMMG interface? The same thing happens either if I use the FD
> approximation of the jacobian or a specific FormJacobianFunction routine.
>

Did you the stencil width and shape (box or star) correctly?
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