Ifpack_ILU Class Reference

Ifpack_ILU: A class for constructing and using an incomplete lower/upper (ILU) factorization of a given Epetra_RowMatrix. More...

#include <Ifpack_ILU.h>

Inheritance diagram for Ifpack_ILU:

	Ifpack_ILU (Epetra_RowMatrix *A)
	Constructor. More...
	~Ifpack_ILU ()
	Destructor. More...
int	Initialize ()
	Initialize the preconditioner, does not touch matrix values. More...
bool	IsInitialized () const
	Returns true if the preconditioner has been successfully initialized. More...
int	Compute ()
	Compute ILU factors L and U using the specified graph, diagonal perturbation thresholds and relaxation parameters. More...
bool	IsComputed () const
	If factor is completed, this query returns true, otherwise it returns false. More...
int	SetParameters (Teuchos::ParameterList &parameterlist)
	Set parameters using a Teuchos::ParameterList object. More...
int	SetUseTranspose (bool UseTranspose_in)
	If set true, transpose of this operator will be applied. More...
int	Apply (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
int	Multiply (bool Trans, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
int	ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
	Returns the result of a Epetra_Operator inverse applied to an Epetra_MultiVector X in Y. More...
double	Condest (const Ifpack_CondestType CT=Ifpack_Cheap, const int MaxIters=1550, const double Tol=1e-9, Epetra_RowMatrix *Matrix_in=0)
	Computes the estimated condition number and returns the value. More...
double	Condest () const
	Returns the computed estimated condition number, or -1.0 if not computed. More...
const Epetra_CrsMatrix &	L () const
	Returns the address of the L factor associated with this factored matrix. More...
const Epetra_Vector &	D () const
	Returns the address of the D factor associated with this factored matrix. More...
const Epetra_CrsMatrix &	U () const
	Returns the address of the L factor associated with this factored matrix. More...
const char *	Label () const
	Returns a character string describing the operator. More...
int	SetLabel (const char *Label_in)
	Sets label for this object. More...
double	NormInf () const
	Returns 0.0 because this class cannot compute Inf-norm. More...
bool	HasNormInf () const
	Returns false because this class cannot compute an Inf-norm. More...
bool	UseTranspose () const
	Returns the current UseTranspose setting. More...
const Epetra_Map &	OperatorDomainMap () const
	Returns the Epetra_Map object associated with the domain of this operator. More...
const Epetra_Map &	OperatorRangeMap () const
	Returns the Epetra_Map object associated with the range of this operator. More...
const Epetra_Comm &	Comm () const
	Returns the Epetra_BlockMap object associated with the range of this matrix operator. More...
const Epetra_RowMatrix &	Matrix () const
	Returns a reference to the matrix to be preconditioned. More...
virtual std::ostream &	Print (std::ostream &os) const
	Prints on stream basic information about this object. 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...
	Ifpack_ILU (const Ifpack_ILU &RHS)
	Copy constructor (should never be used) More...
Ifpack_ILU &	operator= (const Ifpack_ILU &)
	operator= (should never be used) More...
void	Destroy ()
	Destroys all internal data. More...
int	Solve (bool Trans, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
	Returns the result of a Ifpack_ILU forward/back solve on a Epetra_MultiVector X in Y. More...
int	ComputeSetup ()
int	InitAllValues (const Epetra_RowMatrix &A, int MaxNumEntries)
int	LevelOfFill () const
	Returns the level of fill. More...
double	RelaxValue () const
	Get ILU(k) relaxation parameter. More...
double	AbsoluteThreshold () const
	Get absolute threshold value. More...
double	RelativeThreshold () const
	Get relative threshold value. More...
int	NumGlobalRows () const
	Returns the number of global matrix rows. More...
int	NumGlobalCols () const
	Returns the number of global matrix columns. More...
int	NumGlobalNonzeros () const
	Returns the number of nonzero entries in the global graph. More...
virtual int	NumGlobalBlockDiagonals () const
	Returns the number of diagonal entries found in the global input graph. More...
long long	NumGlobalRows64 () const
long long	NumGlobalCols64 () const
long long	NumGlobalNonzeros64 () const
virtual long long	NumGlobalBlockDiagonals64 () const
int	NumMyRows () const
	Returns the number of local matrix rows. More...
int	NumMyCols () const
	Returns the number of local matrix columns. More...
int	NumMyNonzeros () const
	Returns the number of nonzero entries in the local graph. More...
virtual int	NumMyBlockDiagonals () const
	Returns the number of diagonal entries found in the local input graph. More...
virtual int	NumMyDiagonals () const
	Returns the number of nonzero diagonal values found in matrix. More...
int	IndexBase () const
	Returns the index base for row and column indices for this graph. More...
long long	IndexBase64 () const
const Ifpack_IlukGraph &	Graph () const
	Returns the address of the Ifpack_IlukGraph associated with this factored matrix. More...
Epetra_RowMatrix &	Matrix ()
	Returns a reference to the matrix. More...
Teuchos::RefCountPtr < Epetra_RowMatrix >	A_
	Pointer to the Epetra_RowMatrix to factorize. More...
Teuchos::RefCountPtr < Ifpack_IlukGraph >	Graph_
Teuchos::RefCountPtr < Epetra_CrsGraph >	CrsGraph_
Teuchos::RefCountPtr< Epetra_Map >	IlukRowMap_
Teuchos::RefCountPtr< Epetra_Map >	IlukDomainMap_
Teuchos::RefCountPtr< Epetra_Map >	IlukRangeMap_
const Epetra_Map *	U_DomainMap_
const Epetra_Map *	L_RangeMap_
const Epetra_Comm &	Comm_
Teuchos::RefCountPtr < Epetra_CrsMatrix >	L_
	Contains the L factors. More...
Teuchos::RefCountPtr < Epetra_CrsMatrix >	U_
	Contains the U factors. More...
Teuchos::RefCountPtr < Epetra_CrsGraph >	L_Graph_
Teuchos::RefCountPtr < Epetra_CrsGraph >	U_Graph_
Teuchos::RefCountPtr < Epetra_Vector >	D_
	Diagonal of factors. More...
bool	UseTranspose_
int	NumMyDiagonals_
bool	Allocated_
bool	ValuesInitialized_
bool	Factored_
double	RelaxValue_
	Relaxation value. More...
double	Athresh_
	absolute threshold More...
double	Rthresh_
	relative threshold More...
double	Condest_
	condition number estimate More...
int	LevelOfFill_
	Level of fill. More...
bool	IsInitialized_
	If true, the preconditioner has been successfully initialized. More...
bool	IsComputed_
	If true, the preconditioner has been successfully computed. More...
char	Label_ [160]
	Label of this object. 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	ComputeFlops_
	Contains the number of flops for Compute(). More...
double	ApplyInverseFlops_
	Contain sthe number of flops for ApplyInverse(). More...
Epetra_Time	Time_
	Used for timing issues. More...

Additional Inherited Members

Detailed Description

Ifpack_ILU: A class for constructing and using an incomplete lower/upper (ILU) factorization of a given Epetra_RowMatrix.

The Ifpack_ILU class computes a "relaxed" ILU factorization with level k fill of a given Epetra_RowMatrix. The notion of relaxation is the same as described in "Experimental study of ILU preconditioners for indefinite matrices" by Chow and Saad.

Please refer to ifp_ilu for a general description of the ILU algorithm.

The complete list of supported parameters is reported in page ifp_params.

Author

Mike Heroux, Marzio Sala, SNL 9214.

Date

Last modified on 22-Jan-05.

Definition at line 83 of file Ifpack_ILU.h.

Constructor & Destructor Documentation

Ifpack_ILU::Ifpack_ILU

(

Epetra_RowMatrix *

A

)

Constructor.

Definition at line 65 of file Ifpack_ILU.cpp.

Ifpack_ILU::~Ifpack_ILU ( )

inline

Destructor.

Definition at line 91 of file Ifpack_ILU.h.

Ifpack_ILU::Ifpack_ILU ( const Ifpack_ILU &  RHS )

inlineprivate

Copy constructor (should never be used)

Definition at line 293 of file Ifpack_ILU.h.

Member Function Documentation

int Ifpack_ILU::Initialize ( )

virtual

Initialize the preconditioner, does not touch matrix values.

Implements Ifpack_Preconditioner.

Definition at line 239 of file Ifpack_ILU.cpp.

bool Ifpack_ILU::IsInitialized ( ) const

inlinevirtual

Returns true if the preconditioner has been successfully initialized.

Implements Ifpack_Preconditioner.

Definition at line 103 of file Ifpack_ILU.h.

int Ifpack_ILU::Compute ( )

virtual

Compute ILU factors L and U using the specified graph, diagonal perturbation thresholds and relaxation parameters.

This function computes the ILU(k) factors L and U using the current:

1. Ifpack_IlukGraph specifying the structure of L and U.
2. Value for the ILU(k) relaxation parameter.
3. Value for the a priori diagonal threshold values.

InitValues() must be called before the factorization can proceed.

Implements Ifpack_Preconditioner.

Definition at line 334 of file Ifpack_ILU.cpp.

bool Ifpack_ILU::IsComputed ( ) const

inlinevirtual

If factor is completed, this query returns true, otherwise it returns false.

Implements Ifpack_Preconditioner.

Definition at line 120 of file Ifpack_ILU.h.

int Ifpack_ILU::SetParameters ( Teuchos::ParameterList &  parameterlist )

virtual

Set parameters using a Teuchos::ParameterList object.

Implements Ifpack_Preconditioner.

Definition at line 100 of file Ifpack_ILU.cpp.

int Ifpack_ILU::SetUseTranspose ( bool  UseTranspose_in )

inlinevirtual

If set true, transpose of this operator will be applied.

This flag allows the transpose of the given operator to be used implicitly. Setting this flag affects only the Apply() and ApplyInverse() methods. If the implementation of this interface does not support transpose use, this method should return a value of -1.

Parameters

UseTranspose_in

- (In) If true, multiply by the transpose of operator, otherwise just use operator.

Returns

Always returns 0.

Implements Epetra_Operator.

Definition at line 144 of file Ifpack_ILU.h.

int Ifpack_ILU::Apply ( const Epetra_MultiVector &  X, Epetra_MultiVector &  Y  ) const

inlinevirtual

Implements Epetra_Operator.

Definition at line 149 of file Ifpack_ILU.h.

int Ifpack_ILU::Multiply	(	bool	Trans,
		const Epetra_MultiVector &	X,
		Epetra_MultiVector &	Y
	)		const

Definition at line 535 of file Ifpack_ILU.cpp.

int Ifpack_ILU::ApplyInverse ( const Epetra_MultiVector &  X, Epetra_MultiVector &  Y  ) const

virtual

Returns the result of a Epetra_Operator inverse applied to an Epetra_MultiVector X in Y.

In this implementation, we use several existing attributes to determine how virtual method ApplyInverse() should call the concrete method Solve(). We pass in the UpperTriangular(), the Epetra_CrsMatrix::UseTranspose(), and NoDiagonal() methods. The most notable warning is that if a matrix has no diagonal values we assume that there is an implicit unit diagonal that should be accounted for when doing a triangular solve.

Parameters

X	- (In) A Epetra_MultiVector of dimension NumVectors to solve for.
Out	Y - (Out) A Epetra_MultiVector of dimension NumVectors containing result.

Returns

Integer error code, set to 0 if successful.

Implements Ifpack_Preconditioner.

Definition at line 575 of file Ifpack_ILU.cpp.

double Ifpack_ILU::Condest ( const Ifpack_CondestType  CT = Ifpack_Cheap, const int  MaxIters = 1550, const double  Tol = 1e-9, Epetra_RowMatrix *  Matrix_in = 0  )

virtual

Computes the estimated condition number and returns the value.

Implements Ifpack_Preconditioner.

Definition at line 615 of file Ifpack_ILU.cpp.

double Ifpack_ILU::Condest ( ) const

inlinevirtual

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

Implements Ifpack_Preconditioner.

Definition at line 181 of file Ifpack_ILU.h.

const Epetra_CrsMatrix& Ifpack_ILU::L ( ) const

inline

Returns the address of the L factor associated with this factored matrix.

Definition at line 190 of file Ifpack_ILU.h.

const Epetra_Vector& Ifpack_ILU::D ( ) const

inline

Returns the address of the D factor associated with this factored matrix.

Definition at line 193 of file Ifpack_ILU.h.

const Epetra_CrsMatrix& Ifpack_ILU::U ( ) const

inline

Returns the address of the L factor associated with this factored matrix.

Definition at line 196 of file Ifpack_ILU.h.

const char* Ifpack_ILU::Label ( ) const

inlinevirtual

Returns a character string describing the operator.

Implements Epetra_Operator.

Definition at line 199 of file Ifpack_ILU.h.

int Ifpack_ILU::SetLabel ( const char *  Label_in )

inline

Sets label for this object.

Definition at line 202 of file Ifpack_ILU.h.

double Ifpack_ILU::NormInf ( ) const

inlinevirtual

Returns 0.0 because this class cannot compute Inf-norm.

Implements Epetra_Operator.

Definition at line 209 of file Ifpack_ILU.h.

bool Ifpack_ILU::HasNormInf ( ) const

inlinevirtual

Returns false because this class cannot compute an Inf-norm.

Implements Epetra_Operator.

Definition at line 212 of file Ifpack_ILU.h.

bool Ifpack_ILU::UseTranspose ( ) const

inlinevirtual

Returns the current UseTranspose setting.

Implements Epetra_Operator.

Definition at line 215 of file Ifpack_ILU.h.

const Epetra_Map& Ifpack_ILU::OperatorDomainMap ( ) const

inlinevirtual

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

Implements Epetra_Operator.

Definition at line 218 of file Ifpack_ILU.h.

const Epetra_Map& Ifpack_ILU::OperatorRangeMap ( ) const

inlinevirtual

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

Implements Epetra_Operator.

Definition at line 221 of file Ifpack_ILU.h.

const Epetra_Comm& Ifpack_ILU::Comm ( ) const

inlinevirtual

Returns the Epetra_BlockMap object associated with the range of this matrix operator.

Implements Epetra_Operator.

Definition at line 224 of file Ifpack_ILU.h.

const Epetra_RowMatrix& Ifpack_ILU::Matrix ( ) const

inlinevirtual

Returns a reference to the matrix to be preconditioned.

Implements Ifpack_Preconditioner.

Definition at line 227 of file Ifpack_ILU.h.

std::ostream & Ifpack_ILU::Print ( std::ostream &  os ) const

virtual

Prints on stream basic information about this object.

Implements Ifpack_Preconditioner.

Definition at line 634 of file Ifpack_ILU.cpp.

virtual int Ifpack_ILU::NumInitialize ( ) const

inlinevirtual

Returns the number of calls to Initialize().

Implements Ifpack_Preconditioner.

Definition at line 236 of file Ifpack_ILU.h.

virtual int Ifpack_ILU::NumCompute ( ) const

inlinevirtual

Returns the number of calls to Compute().

Implements Ifpack_Preconditioner.

Definition at line 242 of file Ifpack_ILU.h.

virtual int Ifpack_ILU::NumApplyInverse ( ) const

inlinevirtual

Returns the number of calls to ApplyInverse().

Implements Ifpack_Preconditioner.

Definition at line 248 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::InitializeTime ( ) const

inlinevirtual

Returns the time spent in Initialize().

Implements Ifpack_Preconditioner.

Definition at line 254 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::ComputeTime ( ) const

inlinevirtual

Returns the time spent in Compute().

Implements Ifpack_Preconditioner.

Definition at line 260 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::ApplyInverseTime ( ) const

inlinevirtual

Returns the time spent in ApplyInverse().

Implements Ifpack_Preconditioner.

Definition at line 266 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::InitializeFlops ( ) const

inlinevirtual

Returns the number of flops in the initialization phase.

Implements Ifpack_Preconditioner.

Definition at line 272 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::ComputeFlops ( ) const

inlinevirtual

Returns the number of flops in the computation phase.

Implements Ifpack_Preconditioner.

Definition at line 277 of file Ifpack_ILU.h.

virtual double Ifpack_ILU::ApplyInverseFlops ( ) const

inlinevirtual

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

Implements Ifpack_Preconditioner.

Definition at line 282 of file Ifpack_ILU.h.

Ifpack_ILU& Ifpack_ILU::operator= ( const Ifpack_ILU &  )

inlineprivate

operator= (should never be used)

Definition at line 299 of file Ifpack_ILU.h.

void Ifpack_ILU::Destroy ( )

private

Destroys all internal data.

Definition at line 92 of file Ifpack_ILU.cpp.

int Ifpack_ILU::Solve ( bool  Trans, const Epetra_MultiVector &  X, Epetra_MultiVector &  Y  ) const

private

Returns the result of a Ifpack_ILU forward/back solve on a Epetra_MultiVector X in Y.

Parameters

In	Trans -If true, solve transpose problem.
X	- (In) A Epetra_MultiVector of dimension NumVectors to solve for.
Out	Y - (Out) A Epetra_MultiVector of dimension NumVectorscontaining result.

Returns

Integer error code, set to 0 if successful.

Definition at line 500 of file Ifpack_ILU.cpp.

int Ifpack_ILU::ComputeSetup ( )

private

Definition at line 115 of file Ifpack_ILU.cpp.

int Ifpack_ILU::InitAllValues ( const Epetra_RowMatrix &  A, int  MaxNumEntries  )

private

int Ifpack_ILU::LevelOfFill ( ) const

inlineprivate

Returns the level of fill.

Definition at line 324 of file Ifpack_ILU.h.

double Ifpack_ILU::RelaxValue ( ) const

inlineprivate

Get ILU(k) relaxation parameter.

Definition at line 327 of file Ifpack_ILU.h.

double Ifpack_ILU::AbsoluteThreshold ( ) const

inlineprivate

Get absolute threshold value.

Definition at line 330 of file Ifpack_ILU.h.

double Ifpack_ILU::RelativeThreshold ( ) const

inlineprivate

Get relative threshold value.

Definition at line 333 of file Ifpack_ILU.h.

int Ifpack_ILU::NumGlobalRows ( ) const

inlineprivate

Returns the number of global matrix rows.

Definition at line 337 of file Ifpack_ILU.h.

int Ifpack_ILU::NumGlobalCols ( ) const

inlineprivate

Returns the number of global matrix columns.

Definition at line 340 of file Ifpack_ILU.h.

int Ifpack_ILU::NumGlobalNonzeros ( ) const

inlineprivate

Returns the number of nonzero entries in the global graph.

Definition at line 343 of file Ifpack_ILU.h.

virtual int Ifpack_ILU::NumGlobalBlockDiagonals ( ) const

inlineprivatevirtual

Returns the number of diagonal entries found in the global input graph.

Definition at line 346 of file Ifpack_ILU.h.

long long Ifpack_ILU::NumGlobalRows64 ( ) const

inlineprivate

Definition at line 349 of file Ifpack_ILU.h.

long long Ifpack_ILU::NumGlobalCols64 ( ) const

inlineprivate

Definition at line 351 of file Ifpack_ILU.h.

long long Ifpack_ILU::NumGlobalNonzeros64 ( ) const

inlineprivate

Definition at line 353 of file Ifpack_ILU.h.

virtual long long Ifpack_ILU::NumGlobalBlockDiagonals64 ( ) const

inlineprivatevirtual

Definition at line 355 of file Ifpack_ILU.h.

int Ifpack_ILU::NumMyRows ( ) const

inlineprivate

Returns the number of local matrix rows.

Definition at line 358 of file Ifpack_ILU.h.

int Ifpack_ILU::NumMyCols ( ) const

inlineprivate

Returns the number of local matrix columns.

Definition at line 361 of file Ifpack_ILU.h.

int Ifpack_ILU::NumMyNonzeros ( ) const

inlineprivate

Returns the number of nonzero entries in the local graph.

Definition at line 364 of file Ifpack_ILU.h.

virtual int Ifpack_ILU::NumMyBlockDiagonals ( ) const

inlineprivatevirtual

Returns the number of diagonal entries found in the local input graph.

Definition at line 367 of file Ifpack_ILU.h.

virtual int Ifpack_ILU::NumMyDiagonals ( ) const

inlineprivatevirtual

Returns the number of nonzero diagonal values found in matrix.

Definition at line 370 of file Ifpack_ILU.h.

int Ifpack_ILU::IndexBase ( ) const

inlineprivate

Returns the index base for row and column indices for this graph.

Definition at line 374 of file Ifpack_ILU.h.

long long Ifpack_ILU::IndexBase64 ( ) const

inlineprivate

Definition at line 376 of file Ifpack_ILU.h.

const Ifpack_IlukGraph& Ifpack_ILU::Graph ( ) const

inlineprivate

Returns the address of the Ifpack_IlukGraph associated with this factored matrix.

Definition at line 379 of file Ifpack_ILU.h.

Epetra_RowMatrix& Ifpack_ILU::Matrix ( )

inlineprivate

Returns a reference to the matrix.

Definition at line 382 of file Ifpack_ILU.h.

Member Data Documentation

Teuchos::RefCountPtr<Epetra_RowMatrix> Ifpack_ILU::A_

private

Pointer to the Epetra_RowMatrix to factorize.

Definition at line 391 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Ifpack_IlukGraph> Ifpack_ILU::Graph_

private

Definition at line 392 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_CrsGraph> Ifpack_ILU::CrsGraph_

private

Definition at line 393 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_Map> Ifpack_ILU::IlukRowMap_

private

Definition at line 394 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_Map> Ifpack_ILU::IlukDomainMap_

private

Definition at line 395 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_Map> Ifpack_ILU::IlukRangeMap_

private

Definition at line 396 of file Ifpack_ILU.h.

const Epetra_Map* Ifpack_ILU::U_DomainMap_

private

Definition at line 397 of file Ifpack_ILU.h.

const Epetra_Map* Ifpack_ILU::L_RangeMap_

private

Definition at line 398 of file Ifpack_ILU.h.

const Epetra_Comm& Ifpack_ILU::Comm_

private

Definition at line 399 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_CrsMatrix> Ifpack_ILU::L_

private

Contains the L factors.

Definition at line 401 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_CrsMatrix> Ifpack_ILU::U_

private

Contains the U factors.

Definition at line 403 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_CrsGraph> Ifpack_ILU::L_Graph_

private

Definition at line 404 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_CrsGraph> Ifpack_ILU::U_Graph_

private

Definition at line 405 of file Ifpack_ILU.h.

Teuchos::RefCountPtr<Epetra_Vector> Ifpack_ILU::D_

private

Diagonal of factors.

Definition at line 407 of file Ifpack_ILU.h.

bool Ifpack_ILU::UseTranspose_

private

Definition at line 408 of file Ifpack_ILU.h.

int Ifpack_ILU::NumMyDiagonals_

private

Definition at line 410 of file Ifpack_ILU.h.

bool Ifpack_ILU::Allocated_

private

Definition at line 411 of file Ifpack_ILU.h.

bool Ifpack_ILU::ValuesInitialized_

private

Definition at line 412 of file Ifpack_ILU.h.

bool Ifpack_ILU::Factored_

private

Definition at line 413 of file Ifpack_ILU.h.

double Ifpack_ILU::RelaxValue_

private

Relaxation value.

Definition at line 415 of file Ifpack_ILU.h.

double Ifpack_ILU::Athresh_

private

absolute threshold

Definition at line 417 of file Ifpack_ILU.h.

double Ifpack_ILU::Rthresh_

private

relative threshold

Definition at line 419 of file Ifpack_ILU.h.

double Ifpack_ILU::Condest_

private

condition number estimate

Definition at line 421 of file Ifpack_ILU.h.

int Ifpack_ILU::LevelOfFill_

private

Level of fill.

Definition at line 423 of file Ifpack_ILU.h.

bool Ifpack_ILU::IsInitialized_

private

If true, the preconditioner has been successfully initialized.

Definition at line 425 of file Ifpack_ILU.h.

bool Ifpack_ILU::IsComputed_

private

If true, the preconditioner has been successfully computed.

Definition at line 427 of file Ifpack_ILU.h.

char Ifpack_ILU::Label_[160]

private

Label of this object.

Definition at line 429 of file Ifpack_ILU.h.

int Ifpack_ILU::NumInitialize_

private

Contains the number of successful calls to Initialize().

Definition at line 431 of file Ifpack_ILU.h.

int Ifpack_ILU::NumCompute_

private

Contains the number of successful call to Compute().

Definition at line 433 of file Ifpack_ILU.h.

int Ifpack_ILU::NumApplyInverse_

mutableprivate

Contains the number of successful call to ApplyInverse().

Definition at line 435 of file Ifpack_ILU.h.

double Ifpack_ILU::InitializeTime_

private

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

Definition at line 437 of file Ifpack_ILU.h.

double Ifpack_ILU::ComputeTime_

private

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

Definition at line 439 of file Ifpack_ILU.h.

double Ifpack_ILU::ApplyInverseTime_

mutableprivate

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

Definition at line 441 of file Ifpack_ILU.h.

double Ifpack_ILU::ComputeFlops_

private

Contains the number of flops for Compute().

Definition at line 443 of file Ifpack_ILU.h.

double Ifpack_ILU::ApplyInverseFlops_

mutableprivate

Contain sthe number of flops for ApplyInverse().

Definition at line 445 of file Ifpack_ILU.h.

Epetra_Time Ifpack_ILU::Time_

mutableprivate

Used for timing issues.

Definition at line 447 of file Ifpack_ILU.h.

---

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

• Ifpack_ILU.h
• Ifpack_ILU.cpp