[petsc-users] about linear solver convergence

[Jed Brown]

On Wed, Oct 12, 2011 at 09:56, behzad baghapour
<behzad.baghapour at gmail.com>wrote:

> I found that I should set up KSP in each Newton iteration ( if I don't want
> to use SNES I think!).
>

You probably should use SNES. :-)


> Then KSP linear solver converged and my problem is solved.
> By the way, Is it correct to re-setup KSP in each Newton iteration or I can
> use a better way?
>

You can just call KSPSetOperators() before KSPSolve() in each Newton
iteration.
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