[petsc-users] Command line option to set number iterations for Chebyshev eigenvalue estimation?

[Matthew Knepley]

On Thu, Jan 23, 2014 at 5:35 AM, Garth N. Wells <gnw20 at cam.ac.uk> wrote:

> Is there are command line option to set the number of iterations used for
> the eigenvalue estimation inside the Chebyshev preconditioner?
>  "-gamg_est_ksp_max_it" does the trick with GAMG, but I'd also like to
> change the number of iterations when using Chebyshev smoothing with ML.


In GAMG, we use PETSc itself to do the estimate, and give it the prefix
gamg_est_. In ML, as far as I can see from the code, we use the internal
estimator, and I don't think they give us this knob.

   Matt


>
> Garth
>



-- 
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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