Ifpack_BlockRelaxation: a class to define block relaxation preconditioners of Epetra_RowMatrix's. More...

#include <Ifpack_BlockRelaxation.h>

Inheritance diagram for Ifpack_BlockRelaxation< T >:

Public Member Functions
int	NumLocalBlocks () const
	Returns the number local blocks. More...

virtual bool	IsInitialized () const
	Returns `true` if the preconditioner has been successfully computed. More...

virtual bool	IsComputed () const
	Returns `true` if the preconditioner has been successfully computed. More...

virtual int	SetParameters (Teuchos::ParameterList &List)
	Sets all the parameters for the preconditioner. More...

virtual int	Initialize ()
	Initializes the preconditioner. More...

virtual int	Compute ()
	Computes the preconditioner. More...

virtual const Epetra_RowMatrix &	Matrix () const
	Returns a pointer to the matrix to be preconditioned. More...

virtual double	Condest (const Ifpack_CondestType=Ifpack_Cheap, const int=1550, const double=1e-9, Epetra_RowMatrix *=0)
	Computes the condition number estimate, returns its value. More...

virtual double	Condest () const
	Returns the computed condition number estimate, or -1.0 if not computed. More...

std::ostream &	Print (std::ostream &os) const
	Prints basic information on iostream. This function is used by operator<<. More...

virtual int	NumInitialize () const
	Returns the number of calls to Initialize(). More...

virtual int	NumCompute () const
	Returns the number of calls to Compute(). More...

virtual int	NumApplyInverse () const
	Returns the number of calls to ApplyInverse(). More...

virtual double	InitializeTime () const
	Returns the time spent in Initialize(). More...

virtual double	ComputeTime () const
	Returns the time spent in Compute(). More...

virtual double	ApplyInverseTime () const
	Returns the time spent in ApplyInverse(). More...

virtual double	InitializeFlops () const
	Returns the number of flops in the initialization phase. More...

virtual double	ComputeFlops () const
	Returns the number of flops in the computation phase. More...

virtual double	ApplyInverseFlops () const
	Returns the number of flops in the application of the preconditioner. More...

Private Member Functions
	Ifpack_BlockRelaxation (const Ifpack_BlockRelaxation &rhs)
	Copy constructor (PRIVATE, should not be used). More...

Ifpack_BlockRelaxation &	operator= (const Ifpack_BlockRelaxation &rhs)
	operator= (PRIVATE, should not be used). More...

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

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

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

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

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

virtual int	DoSGS (const Epetra_MultiVector &X, Epetra_MultiVector &Xtmp, Epetra_MultiVector &Y) const

int	ExtractSubmatrices ()

	Ifpack_BlockRelaxation (const Epetra_RowMatrix *Matrix)
	Ifpack_BlockRelaxation constructor with given Epetra_RowMatrix. More...

virtual	~Ifpack_BlockRelaxation ()

virtual int	Apply (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
	Applies the matrix to an Epetra_MultiVector. More...

virtual int	ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
	Applies the block Jacobi preconditioner to X, returns the result in Y. More...

virtual double	NormInf () const
	Returns the infinity norm of the global matrix (not implemented) More...

virtual int	SetUseTranspose (bool UseTranspose_in)

virtual const char *	Label () const

virtual bool	UseTranspose () const
	Returns the current UseTranspose setting. More...

virtual bool	HasNormInf () const
	Returns true if the this object can provide an approximate Inf-norm, false otherwise. More...

virtual const Epetra_Comm &	Comm () const
	Returns a pointer to the Epetra_Comm communicator associated with this operator. More...

virtual const Epetra_Map &	OperatorDomainMap () const
	Returns the Epetra_Map object associated with the domain of this operator. More...

virtual const Epetra_Map &	OperatorRangeMap () const
	Returns the Epetra_Map object associated with the range of this operator. More...

bool	IsInitialized_
	If true, the preconditioner has been successfully initialized. More...

bool	IsComputed_
	If true, the preconditioner has been successfully computed. More...

int	NumInitialize_
	Contains the number of successful calls to Initialize(). More...

int	NumCompute_
	Contains the number of successful call to Compute(). More...

int	NumApplyInverse_
	Contains the number of successful call to ApplyInverse(). More...

double	InitializeTime_
	Contains the time for all successful calls to Initialize(). More...

double	ComputeTime_
	Contains the time for all successful calls to Compute(). More...

double	ApplyInverseTime_
	Contains the time for all successful calls to ApplyInverse(). More...

double	InitializeFlops_
	Contains the number of flops for Initialize(). More...

double	ComputeFlops_
	Contains the number of flops for Compute(). More...

double	ApplyInverseFlops_
	Contain sthe number of flops for ApplyInverse(). More...

int	NumSweeps_
	Number of preconditioning sweeps. More...

double	DampingFactor_
	Damping parameter. More...

int	NumLocalBlocks_
	Number of local blocks. More...

Teuchos::ParameterList	List_
	Parameters list to be used to solve on each subblock. More...

Teuchos::RefCountPtr< const Epetra_RowMatrix >	Matrix_
	Containers_[i] contains all the necessary information to solve on each subblock. More...

std::vector < Teuchos::RefCountPtr< T > >	Containers_

Epetra_Vector	Diagonal_

Teuchos::RefCountPtr < Ifpack_Partitioner >	Partitioner_
	Contains information about non-overlapping partitions. More...

std::string	PartitionerType_

int	PrecType_

std::string	Label_
	Label for `this` object. More...

bool	ZeroStartingSolution_
	If `true`, starting solution is the zero vector. More...

Teuchos::RefCountPtr < Ifpack_Graph >	Graph_

Teuchos::RefCountPtr < Epetra_Vector >	W_
	Weights for overlapping Jacobi only. More...

int	OverlapLevel_

Epetra_Time	Time_

bool	IsParallel_

Teuchos::RefCountPtr < Epetra_Import >	Importer_

Detailed Description

template<typename T>
class Ifpack_BlockRelaxation< T >

Ifpack_BlockRelaxation: a class to define block relaxation preconditioners of Epetra_RowMatrix's.

The Ifpack_BlockRelaxation class enables the construction of

block relaxation preconditioners of an Epetra_RowMatrix. Ifpack_PointRelaxation is derived from the Ifpack_Preconditioner class, which is derived from Epetra_Operator. Therefore this object can be used as preconditioner everywhere an ApplyInverse() method is required in the preconditioning step.

The class currently support:

block Jacobi;
block Gauss-Seidel;
symmetric block Gauss-Seidel.

The idea of block relaxation method is to extend their point relaxation counterpart (implemented in Ifpack_PointRelaxation), by working on a group of equation simulteneously. Generally, larger blocks result in better convergence and increased robusteness.

The user can decide:

the number of blocks (say, NumBlocks). If NumBlocks is equal to the number of rows, then the resulting scheme is equivalent to a point relaxation scheme;
how to apply the inverse of each diagonal block, by choosing a dense container or a sparse container. The implementation of block relaxation schemes requires the application of the inverse of each diagonal block. This can be done using LAPACK (dense container), or any Ifpack_Preconditioner derived class (sparse container);
blocks can be defined using a linear decomposition, by a simple greedy algorithm, or by resorting to METIS.

The following is an example of usage of this preconditioner with dense containers. First, we include the header files:

#include "Ifpack_AdditiveSchwarz.h"
#include "Ifpack_BlockPreconditioner.h"
#include "Ifpack_DenseContainer.h"

Then, we declare the preconditioner. Note that this is done through the class Ifpack_AdditiveSchwarz (see note below in this section).

// A is an Epetra_RowMatrix
// List is a Teuchos::ParameterList
Ifpack_AdditiveSchwarz<Ifpack_BlockRelaxation<Ifpack_DenseContainer> > > Prec(A);
IFPACK_CHK_ERR(Prec.SetParameters(List));
IFPACK_CHK_ERR(Prec.Initialize());
IFPACK_CHK_ERR(Prec.Compute());
// action of the preconditioner is given by ApplyInverse()
// Now use it in AztecOO, solver is an AztecOO object
solver.SetPrecOperator(&Prec);

The complete list of supported parameters is reported in page ifp_params. For a presentation of basic relaxation schemes, please refer to page Ifpack_PointRelaxation.

Author: Marzio Sala, SNL 9214.

Date: Last modified on 25-Jan-05.

Definition at line 145 of file Ifpack_BlockRelaxation.h.

Constructor & Destructor Documentation

template<typename T >

Ifpack_BlockRelaxation< T >::Ifpack_BlockRelaxation ( const Epetra_RowMatrix * Matrix )

Ifpack_BlockRelaxation constructor with given Epetra_RowMatrix.

Creates an Ifpack_Preconditioner preconditioner.

Parameters

In	Matrix - Pointer to matrix to be preconditioned.

Definition at line 461 of file Ifpack_BlockRelaxation.h.

template<typename T >

Ifpack_BlockRelaxation< T >::~Ifpack_BlockRelaxation ( )

virtual

Definition at line 491 of file Ifpack_BlockRelaxation.h.

template<typename T>

Ifpack_BlockRelaxation< T >::Ifpack_BlockRelaxation ( const Ifpack_BlockRelaxation< T > & rhs )

private

Copy constructor (PRIVATE, should not be used).

Member Function Documentation

template<typename T >

int Ifpack_BlockRelaxation< T >::Apply	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

virtual

Applies the matrix to an Epetra_MultiVector.

Parameters

In	X - A Epetra_MultiVector of dimension NumVectors to multiply with matrix.
Out	Y -A Epetra_MultiVector of dimension NumVectors containing the result.

Returns: Integer error code, set to 0 if successful.

Implements Epetra_Operator.

Definition at line 505 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::ApplyInverse	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

virtual

Applies the block Jacobi preconditioner to X, returns the result in Y.

Parameters

In	X - A Epetra_MultiVector of dimension NumVectors to be preconditioned.
Out	Y -A Epetra_MultiVector of dimension NumVectors containing result.

Returns: Integer error code, set to 0 if successful.

Implements Ifpack_Preconditioner.

Definition at line 620 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::NormInf ( ) const

inlinevirtual

Returns the infinity norm of the global matrix (not implemented)

Implements Epetra_Operator.

Definition at line 190 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual int Ifpack_BlockRelaxation< T >::SetUseTranspose ( bool UseTranspose_in )

inlinevirtual

Implements Epetra_Operator.

Definition at line 198 of file Ifpack_BlockRelaxation.h.

template<typename T >

const char * Ifpack_BlockRelaxation< T >::Label ( ) const

virtual

Implements Epetra_Operator.

Definition at line 497 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual bool Ifpack_BlockRelaxation< T >::UseTranspose ( ) const

inlinevirtual

Returns the current UseTranspose setting.

Implements Epetra_Operator.

Definition at line 208 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual bool Ifpack_BlockRelaxation< T >::HasNormInf ( ) const

inlinevirtual

Returns true if the this object can provide an approximate Inf-norm, false otherwise.

Implements Epetra_Operator.

Definition at line 214 of file Ifpack_BlockRelaxation.h.

template<typename T >

const Epetra_Comm & Ifpack_BlockRelaxation< T >::Comm ( ) const

virtual

Returns a pointer to the Epetra_Comm communicator associated with this operator.

Implements Epetra_Operator.

Definition at line 514 of file Ifpack_BlockRelaxation.h.

template<typename T >

const Epetra_Map & Ifpack_BlockRelaxation< T >::OperatorDomainMap ( ) const

virtual

Returns the Epetra_Map object associated with the domain of this operator.

Implements Epetra_Operator.

Definition at line 522 of file Ifpack_BlockRelaxation.h.

template<typename T >

const Epetra_Map & Ifpack_BlockRelaxation< T >::OperatorRangeMap ( ) const

virtual

Returns the Epetra_Map object associated with the range of this operator.

Implements Epetra_Operator.

Definition at line 530 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumLocalBlocks ( ) const

inline

Returns the number local blocks.

Definition at line 230 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual bool Ifpack_BlockRelaxation< T >::IsInitialized ( ) const

inlinevirtual

Returns true if the preconditioner has been successfully computed.

Implements Ifpack_Preconditioner.

Definition at line 236 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual bool Ifpack_BlockRelaxation< T >::IsComputed ( ) const

inlinevirtual

Returns true if the preconditioner has been successfully computed.

Implements Ifpack_Preconditioner.

Definition at line 242 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::SetParameters ( Teuchos::ParameterList & List )

virtual

Sets all the parameters for the preconditioner.

Implements Ifpack_Preconditioner.

Definition at line 1172 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::Initialize ( )

virtual

Initializes the preconditioner.

Implements Ifpack_Preconditioner.

Definition at line 1244 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::Compute ( )

virtual

Computes the preconditioner.

Implements Ifpack_Preconditioner.

Definition at line 587 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual const Epetra_RowMatrix& Ifpack_BlockRelaxation< T >::Matrix ( ) const

inlinevirtual

Returns a pointer to the matrix to be preconditioned.

Implements Ifpack_Preconditioner.

Definition at line 256 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::Condest	(	const Ifpack_CondestType	CT = `Ifpack_Cheap`,
		const int	MaxIters = `1550`,
		const double	Tol = `1e-9`,
		Epetra_RowMatrix *	Matrix = `0`
	)

inlinevirtual

Computes the condition number estimate, returns its value.

Implements Ifpack_Preconditioner.

Definition at line 261 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::Condest ( ) const

inlinevirtual

Returns the computed condition number estimate, or -1.0 if not computed.

Implements Ifpack_Preconditioner.

Definition at line 269 of file Ifpack_BlockRelaxation.h.

template<typename T >

std::ostream & Ifpack_BlockRelaxation< T >::Print ( std::ostream & os ) const

virtual

Prints basic information on iostream. This function is used by operator<<.

Implements Ifpack_Preconditioner.

Definition at line 1114 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual int Ifpack_BlockRelaxation< T >::NumInitialize ( ) const

inlinevirtual

Returns the number of calls to Initialize().

Implements Ifpack_Preconditioner.

Definition at line 277 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual int Ifpack_BlockRelaxation< T >::NumCompute ( ) const

inlinevirtual

Returns the number of calls to Compute().

Implements Ifpack_Preconditioner.

Definition at line 283 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual int Ifpack_BlockRelaxation< T >::NumApplyInverse ( ) const

inlinevirtual

Returns the number of calls to ApplyInverse().

Implements Ifpack_Preconditioner.

Definition at line 289 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::InitializeTime ( ) const

inlinevirtual

Returns the time spent in Initialize().

Implements Ifpack_Preconditioner.

Definition at line 295 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::ComputeTime ( ) const

inlinevirtual

Returns the time spent in Compute().

Implements Ifpack_Preconditioner.

Definition at line 301 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::ApplyInverseTime ( ) const

inlinevirtual

Returns the time spent in ApplyInverse().

Implements Ifpack_Preconditioner.

Definition at line 307 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::InitializeFlops ( ) const

inlinevirtual

Returns the number of flops in the initialization phase.

Implements Ifpack_Preconditioner.

Definition at line 313 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::ComputeFlops ( ) const

inlinevirtual

Returns the number of flops in the computation phase.

Implements Ifpack_Preconditioner.

Definition at line 331 of file Ifpack_BlockRelaxation.h.

template<typename T>

virtual double Ifpack_BlockRelaxation< T >::ApplyInverseFlops ( ) const

inlinevirtual

Returns the number of flops in the application of the preconditioner.

Implements Ifpack_Preconditioner.

Definition at line 346 of file Ifpack_BlockRelaxation.h.

template<typename T>

Ifpack_BlockRelaxation& Ifpack_BlockRelaxation< T >::operator= ( const Ifpack_BlockRelaxation< T > & rhs )

inlineprivate

operator= (PRIVATE, should not be used).

Definition at line 368 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::ApplyInverseJacobi	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 662 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::DoJacobi	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 693 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::ApplyInverseGS	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 801 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::DoGaussSeidel	(	Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 822 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::ApplyInverseSGS	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 930 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::DoSGS	(	const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Xtmp,
		Epetra_MultiVector &	Y
	)		const

privatevirtual

Definition at line 948 of file Ifpack_BlockRelaxation.h.

template<typename T >

int Ifpack_BlockRelaxation< T >::ExtractSubmatrices ( )

private

Definition at line 537 of file Ifpack_BlockRelaxation.h.

Member Data Documentation

template<typename T>

bool Ifpack_BlockRelaxation< T >::IsInitialized_

private

If true, the preconditioner has been successfully initialized.

Definition at line 397 of file Ifpack_BlockRelaxation.h.

template<typename T>

bool Ifpack_BlockRelaxation< T >::IsComputed_

private

If true, the preconditioner has been successfully computed.

Definition at line 399 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumInitialize_

private

Contains the number of successful calls to Initialize().

Definition at line 401 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumCompute_

private

Contains the number of successful call to Compute().

Definition at line 403 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumApplyInverse_

mutableprivate

Contains the number of successful call to ApplyInverse().

Definition at line 405 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::InitializeTime_

private

Contains the time for all successful calls to Initialize().

Definition at line 407 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::ComputeTime_

private

Contains the time for all successful calls to Compute().

Definition at line 409 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::ApplyInverseTime_

mutableprivate

Contains the time for all successful calls to ApplyInverse().

Definition at line 411 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::InitializeFlops_

private

Contains the number of flops for Initialize().

Definition at line 413 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::ComputeFlops_

private

Contains the number of flops for Compute().

Definition at line 415 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::ApplyInverseFlops_

mutableprivate

Contain sthe number of flops for ApplyInverse().

Definition at line 417 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumSweeps_

private

Number of preconditioning sweeps.

Definition at line 422 of file Ifpack_BlockRelaxation.h.

template<typename T>

double Ifpack_BlockRelaxation< T >::DampingFactor_

private

Damping parameter.

Definition at line 424 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::NumLocalBlocks_

private

Number of local blocks.

Definition at line 426 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::ParameterList Ifpack_BlockRelaxation< T >::List_

private

Parameters list to be used to solve on each subblock.

Definition at line 428 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::RefCountPtr< const Epetra_RowMatrix > Ifpack_BlockRelaxation< T >::Matrix_

private

Containers_[i] contains all the necessary information to solve on each subblock.

Pointers to the matrix to be preconditioned.

Definition at line 434 of file Ifpack_BlockRelaxation.h.

template<typename T>

std::vector<Teuchos::RefCountPtr<T> > Ifpack_BlockRelaxation< T >::Containers_

mutableprivate

Definition at line 435 of file Ifpack_BlockRelaxation.h.

template<typename T>

Epetra_Vector Ifpack_BlockRelaxation< T >::Diagonal_

private

Definition at line 436 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::RefCountPtr<Ifpack_Partitioner> Ifpack_BlockRelaxation< T >::Partitioner_

private

Contains information about non-overlapping partitions.

Definition at line 439 of file Ifpack_BlockRelaxation.h.

template<typename T>

std::string Ifpack_BlockRelaxation< T >::PartitionerType_

private

Definition at line 440 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::PrecType_

private

Definition at line 441 of file Ifpack_BlockRelaxation.h.

template<typename T>

std::string Ifpack_BlockRelaxation< T >::Label_

private

Label for this object.

Definition at line 443 of file Ifpack_BlockRelaxation.h.

template<typename T>

bool Ifpack_BlockRelaxation< T >::ZeroStartingSolution_

private

If true, starting solution is the zero vector.

Definition at line 445 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::RefCountPtr<Ifpack_Graph> Ifpack_BlockRelaxation< T >::Graph_

private

Definition at line 446 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::RefCountPtr<Epetra_Vector> Ifpack_BlockRelaxation< T >::W_

private

Weights for overlapping Jacobi only.

Definition at line 448 of file Ifpack_BlockRelaxation.h.

template<typename T>

int Ifpack_BlockRelaxation< T >::OverlapLevel_

private

Definition at line 450 of file Ifpack_BlockRelaxation.h.

template<typename T>

Epetra_Time Ifpack_BlockRelaxation< T >::Time_

mutableprivate

Definition at line 451 of file Ifpack_BlockRelaxation.h.

template<typename T>

bool Ifpack_BlockRelaxation< T >::IsParallel_

private

Definition at line 452 of file Ifpack_BlockRelaxation.h.

template<typename T>

Teuchos::RefCountPtr<Epetra_Import> Ifpack_BlockRelaxation< T >::Importer_

private

Definition at line 453 of file Ifpack_BlockRelaxation.h.

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

Ifpack_BlockRelaxation.h

Public Member Functions

Private Member Functions

Detailed Description

template<typename T> class Ifpack_BlockRelaxation< T >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename T>
class Ifpack_BlockRelaxation< T >