KSPChebyshevEstEigGetKSP#

Get the Krylov method context used to estimate eigenvalues for the Chebyshev method. If a Krylov method is not being used for this purpose, NULL is returned. The reference count of the returned KSP is not incremented: it should not be destroyed by the user.

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPChebyshevEstEigGetKSP(KSP ksp, KSP *kspest)

Input Parameter#

  • ksp - the Krylov space context

Output Parameter#

  • kspest - the eigenvalue estimation Krylov space context

See Also#

KSP: Linear System Solvers, KSPCHEBYSHEV, KSPChebyshevEstEigSet()

Level#

advanced

Location#

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

Implementations#

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


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