[petsc-users] A question about KSP solver

[behzad baghapour]

Thanks, I am using SNES and I thought KSPGetConvergedReason() may
automaticly checked after each Newton iteration and then the solution is
stopped with this message:

  Linear solve did not converge due to DIVERGED_ITS iterations 40
Nonlinear solve did not converge due to DIVERGED_LINEAR_SOLVE

So how can I tell KSP in SNES to ignore the convergence check?



On Tue, Jan 3, 2012 at 6:58 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> On Tue, Jan 3, 2012 at 09:21, behzad baghapour <behzad.baghapour at gmail.com
> > wrote:
>
>> How can I make KSP to ignore the convergence check after prescribed
>> number of linear iterations?
>
>
> -ksp_max_it N
>
> you will get back KSP_DIVERGED_ITS if you call KSPGetConvergedReason(),
> but you can decide that is okay.
>
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