[petsc-users] Parameter to pick KSP for estimating eigenvalues for Chebyshev

[Garth N. Wells]

On 17 June 2015 at 15:43, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>    I introduced a bug in my cleanup. The kspest eigenestimator was created AFTER the KSPSetFromOptions_Chebyshev() hence the options for controlling the KSP estimator were never processed.
>
>    I've attached a patch, please let me know how it goes.
>

I've applied the patch, but I still can't change the Krylov method for
estimating the eigenvalues.

Garth

>   Barry
>
>
>> On Jun 17, 2015, at 6:24 AM, Garth N. Wells <gnw20 at cam.ac.uk> wrote:
>>
>> It used to be possible to pick the Krylov solver used to estimate the
>> eigenvalues for Chebyshev, via the parameter system
>> ("mg_levels_est_ksp_type" and "gamg_est_ksp_type"). I know there was
>> some clean-up, with the parameters becoming
>> "mg_levels_ksp_chebyshev_esteig_foo", but an option to pick the Krylov
>> solver appears to be missing. Or have I overlooked it?
>>
>> Garth
>
>