Interface to the Trilinos package Anasazi. More...

#include "ml_include.h"
#include "ml_struct.h"
#include "ml_smoother.h"
#include "Teuchos_ParameterList.hpp"

Include dependency graph for ml_anasazi.h:

This graph shows which files directly or indirectly include this file:

Namespaces
	ML_Anasazi
	ML_Anasazi: default namespace for all Anasazi interfaces.

Functions
int	ML_Anasazi::Interface (const Epetra_RowMatrix RowMatrix, Epetra_MultiVector &EigenVectors, double RealEigenvalues[], double ImagEigenvalues[], Teuchos::ParameterList &List, double RealEigenvectors[]=0, double ImagEigenvectors[]=0, int NumRealEigenvectors=0, int NumImagEigenvectors=0, ML ml=0)
	Interface to Anasazi to eigen-computations. More...

int	ML_Anasazi::GetFieldOfValuesBox (const Epetra_RowMatrix *RowMatrix, double &MaxReal, double &MaxImag, Teuchos::ParameterList &AnasaziList)
	Computes the size of a box containing the field of values.

int	ML_Anasazi_Get_FieldOfValuesBox_Interface (ML_Operator Amat, struct ML_Field_Of_Values fov)
	Interface from C code to Anasazi to compute the field of values.

int	ML_Anasazi_Get_SpectralNorm_Anasazi (ML_Operator Amat, ML_Smoother smoother, int MaxIters, double Tolerance, int IsProblemSymmetric, int UseDiagonalScaling, double *LambdaMax)
	Interface from C code to Anasazi to compute the maximum eigenvalue.

Detailed Description

Interface to the Trilinos package Anasazi.

Anasazi can be used by ML to eigenvalue computations. The user can:

use Anasazi to estimate the maximum eigenvalue of a given level matrix (for smoothed aggregation);
use Anasazi to compute the low-convergence modes, and filter them;
use Anasazi to compute the field-of-values of a non-symmetric operator, and use this information to improve smoothed aggregation for highly non-symmetric systems.

Namespaces