Reference documentation for deal.II version 9.3.0
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Public Member Functions | Public Attributes | List of all members
PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation Struct Reference

#include <deal.II/lac/precondition.h>

Public Member Functions

 EigenvalueInformation ()
 

Public Attributes

double min_eigenvalue_estimate
 
double max_eigenvalue_estimate
 
unsigned int cg_iterations
 
unsigned int degree
 

Detailed Description

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
struct PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation

A struct that contains information about the eigenvalue estimation performed by the PreconditionChebychev class.

Definition at line 1150 of file precondition.h.

Constructor & Destructor Documentation

◆ EigenvalueInformation()

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation::EigenvalueInformation ( )
inline

Constructor initializing with invalid values.

Definition at line 1172 of file precondition.h.

Member Data Documentation

◆ min_eigenvalue_estimate

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
double PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation::min_eigenvalue_estimate

Estimate for the smallest eigenvalue.

Definition at line 1155 of file precondition.h.

◆ max_eigenvalue_estimate

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
double PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation::max_eigenvalue_estimate

Estimate for the largest eigenvalue.

Definition at line 1159 of file precondition.h.

◆ cg_iterations

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
unsigned int PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation::cg_iterations

Number of CG iterations performed or 0.

Definition at line 1163 of file precondition.h.

◆ degree

template<typename MatrixType = SparseMatrix<double>, typename VectorType = Vector<double>, typename PreconditionerType = DiagonalMatrix<VectorType>>
unsigned int PreconditionChebyshev< MatrixType, VectorType, PreconditionerType >::EigenvalueInformation::degree

The degree of the Chebyshev polynomial (either as set using AdditionalData::degree or estimated as described there).

Definition at line 1168 of file precondition.h.


The documentation for this struct was generated from the following file: