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

Barry Smith bsmith at mcs.anl.gov
Wed Jun 17 09:43:34 CDT 2015


   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.

  Barry
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> 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



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