[petsc-users] reorder a sparse matrix

[Matthew Knepley]

http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Mat/MatPermute.html

  Matt

On Mon, Sep 27, 2010 at 12:38 PM, Umut Tabak <u.tabak at tudelft.nl> wrote:

> Dear all,
>
> How can I reorder a sparse matrix in Petsc?
>
> Sth like in a dirty MATLAB like pseudo-code:
> A = diag([1 3 4 5]);
> neworder = [2 4 1 3];
> B = A(neworder, neworder)
>
> I know I will destroy the sparsity pattern, but for my application there is
> no other way, the matrices should be reordered for some partitioning.
>
> Best regards,
> Umut
>



-- 
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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