PETSc version 3.17.2
Fix/Edit manual page

KSPChebyshevEstEigSetUseNoisy

use a noisy right hand side in order to do the estimate instead of the given right hand side

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPChebyshevEstEigSetUseNoisy(KSP ksp,PetscBool use)
Logically Collective

Input Parameters

ksp - linear solver context
use - PETSC_TRUE to use noisy

Options Database

-ksp_chebyshev_esteig_noisy <true,false> - Use noisy right hand side for estimate

Notes

This alledgely works better for multigrid smoothers

See Also

KSPChebyshevEstEigSet()

Level

intermediate

Location

src/ksp/ksp/impls/cheby/cheby.c

Implementations

KSPChebyshevEstEigSetUseNoisy_Chebyshev in src/ksp/ksp/impls/cheby/cheby.c

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages