#include "petscksp.h" PetscErrorCode KSPChebyshevEstEigSetUseNoisy(KSP ksp,PetscBool use)Logically Collective
| ksp | - linear solver context | |
| use | - PETSC_TRUE to use noisy |
| -ksp_chebyshev_esteig_noisy <true,false> | - Notes: This alledgely works better for multigrid smoothers |