[petsc-users] LDL^T Decomposition and matrix rows/columns reordering

[Matthew Knepley]

On Mon, Apr 8, 2013 at 12:47 AM, Sonya Blade <sonyablade2010 at hotmail.com>wrote:

> Dear All,
>
> I'd like to know is there a function in Petsc or in Slepc for calculating
> the
> LTL^T decomposition?
>
> Aside from that If I want to perform the rows and column reordering which
> function
> or function set should I use in Petsc? I haven't see any vector extraction
> from matrices on the manual.
>
> How can I perform the gauss elimination method in Petsc?
>

http://www.mcs.anl.gov/petsc/petsc-dev/docs/linearsolvertable.html

   Matt


> Your help will be appreciated.
>
> Regards,




-- 
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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