[petsc-users] Some Questions about Inexact Newton Solver

[Matthew Knepley]

On Wed, May 2, 2012 at 4:58 AM, behzad baghapour <behzad.baghapour at gmail.com
> wrote:

> Dear developers,
>
> I have some questions to set up the inexact Newton solver in SNES:
>
> 1- Is there any other method other than EW?
>

No, do you know of one?


> 2- What are the default values for EW when using -snes_ksp_ew?
>

-help


> 3- Is the following procedure enough to implement user-defined inexact
> method?
>
>     "reset the linear tolerance (rtol) in a monitor routine defined for
> SNES"
>

Yes, although I think I would use the Update() method.

   Matt


> Thanks a lot,
> 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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