[petsc-users] Store only Matrix Structure (Binary)

[Matthew Knepley]

On Mon, Jul 16, 2012 at 3:47 PM, Thomas Hisch <t.hisch at gmail.com> wrote:

> Hello list,
>
> is it possible to store just the nonzero pattern of a large (sparse)
> matrix in a file? If I write the whole matrix to disk
> (PetscViewerBinaryOpen/MatView) its size is about 30MB. As I only need
> its structure it would be a good idea to load and store just the
> non-zero pattern of the matrix.
>
> Has anyone tried to do that and are there corresponding functions in
> petsc-dev?
>

This is not in PETSc currrently. It would not be hard to do by commenting
out the
value parts in the source.

   Matt


> Regards
> Thomas
>



-- 
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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