[petsc-users] Linesearch algorithm

[Matthew Knepley]

On Mon, May 14, 2012 at 11:29 AM, behzad baghapour <
behzad.baghapour at gmail.com> wrote:

> Dear Developers,
>
> I wish to know when the algorithm of Linesearch used by
> SNESLineSearchCubic or SNESLineSearchQuadratic calls the Jacobian
> calculation routine defined by user? Is it a way to change the Jacobian
> before calling the line-search routines?
>

You can replace these algorithms with whatever you want. It would make no
sense to change the
Jacobian for the algorithms we have in there now.

   Matt


> Thanks,
> BehZad
>



-- 
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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