Ifpack_DiagonalFilter: Filter to modify the diagonal entries of a given Epetra_RowMatrix. More...

#include <Ifpack_DiagonalFilter.h>

Inheritance diagram for Ifpack_DiagonalFilter:

Collaboration diagram for Ifpack_DiagonalFilter:

Public Member Functions
	Ifpack_DiagonalFilter (const Teuchos::RefCountPtr< Epetra_RowMatrix > &Matrix, double AbsoluteThreshold, double RelativeThreshold)
	Constructor.

virtual	~Ifpack_DiagonalFilter ()
	Destructor.

virtual int	NumMyRowEntries (int MyRow, int &NumEntries) const
	Returns the number of entries in MyRow.

virtual int	MaxNumEntries () const
	Returns the maximum number of entries.

virtual int	ExtractMyRowCopy (int MyRow, int Length, int &NumEntries, double Values, int Indices) const

virtual int	ExtractDiagonalCopy (Epetra_Vector &Diagonal) const

virtual int	Multiply (bool TransA, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const

virtual int	Solve (bool, bool, bool, const Epetra_MultiVector &, Epetra_MultiVector &) const

virtual int	Apply (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const

virtual int	ApplyInverse (const Epetra_MultiVector &, Epetra_MultiVector &) const

virtual int	InvRowSums (Epetra_Vector &) const

virtual int	LeftScale (const Epetra_Vector &x)

virtual int	InvColSums (Epetra_Vector &) const

virtual int	RightScale (const Epetra_Vector &x)

virtual bool	Filled () const

virtual double	NormInf () const
	Not implemented for efficiency reasons.

virtual double	NormOne () const
	Not implemented for efficiency reasons.

virtual int	NumGlobalNonzeros () const

virtual int	NumGlobalRows () const

virtual int	NumGlobalCols () const

virtual int	NumGlobalDiagonals () const

virtual long long	NumGlobalNonzeros64 () const

virtual long long	NumGlobalRows64 () const

virtual long long	NumGlobalCols64 () const

virtual long long	NumGlobalDiagonals64 () const

virtual int	NumMyNonzeros () const

virtual int	NumMyRows () const

virtual int	NumMyCols () const

virtual int	NumMyDiagonals () const

virtual bool	LowerTriangular () const

virtual bool	UpperTriangular () const

virtual const Epetra_Map &	RowMatrixRowMap () const

virtual const Epetra_Map &	RowMatrixColMap () const

virtual const Epetra_Import *	RowMatrixImporter () const

int	SetUseTranspose (bool UseTranspose_in)

bool	UseTranspose () const

bool	HasNormInf () const
	Not implemented for efficiency reasons.

const Epetra_Comm &	Comm () const

const Epetra_Map &	OperatorDomainMap () const

const Epetra_Map &	OperatorRangeMap () const

const Epetra_BlockMap &	Map () const

const char *	Label () const

Detailed Description

Ifpack_DiagonalFilter: Filter to modify the diagonal entries of a given Epetra_RowMatrix.

Ifpack_DiagonalFilter modifies the elements on the diagonal.

A typical use is as follows:

Teuchos::RefCountPtr<Epetra_RowMatrix> A;
// creates a matrix B such that
// B(i,i) = AbsoluteThreshold * sgn(B(i,i)) + 
//          RelativeThreshold * B(i,i)
double AbsoluteThreshold = 1e-3;
double RelativeThreshold = 1.01;
Ifpack_DiagonalFilter B(A, AbsoluteThreshold, RelativeThreshold);

Author: Marzio Sala, SNL 9214.

Last modified on 24-Jan-05.

Definition at line 80 of file Ifpack_DiagonalFilter.h.

The documentation for this class was generated from the following files:

Public Member Functions

Detailed Description