On Thu, Sep 13, 2012 at 2:49 PM, Paul T. Bauman <[email protected]> wrote:
>
> This is what I do usually, but with the external packages. The internal
> PETSc lu doesn't handle pivoting.


http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCLU.html

        -pc_factor_nonzeros_along_diagonal      - permutes the rows and columns 
to
try to put nonzero value along the diagonal.

That's pivoting, right?

-- 
John

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