Amesos_Superludist Class Reference

Amesos_Superludist: An object-oriented wrapper for Superludist. More...

#include <Amesos_Superludist.h>

Inheritance diagram for Amesos_Superludist:

Public Member Functions
int	SetParameters (Teuchos::ParameterList &ParameterList)
	Updates internal variables. More...
int	NumSymbolicFact () const
	Returns the number of symbolic factorizations performed by this object. More...
int	NumNumericFact () const
	Returns the number of numeric factorizations performed by this object. More...
int	NumSolve () const
	Returns the number of solves performed by this object. More...
void	PrintTiming () const
	Print various timig. More...
void	PrintStatus () const
	Print various information about the parameters used by Superludist. More...
void	GetTiming (Teuchos::ParameterList &TimingParameterList) const
	Extracts timing information from the current solver and places it in the parameter list. More...
Public Member Functions inherited from Amesos_BaseSolver
virtual	~Amesos_BaseSolver ()
	Destructor. More...
virtual void	setParameterList (Teuchos::RCP< Teuchos::ParameterList > const &paramList)
	Redefined from Teuchos::ParameterListAcceptor (Does Not Work) More...
virtual Teuchos::RCP < Teuchos::ParameterList >	getNonconstParameterList ()
	This is an empty stub. More...
virtual Teuchos::RCP < Teuchos::ParameterList >	unsetParameterList ()
	This is an empty stub. More...
Public Member Functions inherited from Teuchos::ParameterListAcceptor
virtual RCP< const ParameterList >	getParameterList () const
virtual RCP< const ParameterList >	getValidParameters () const

Private Member Functions
const Epetra_Comm &	Comm () const
	Returns a pointer to the Epetra_Comm communicator associated with this operator. More...
const Epetra_Import &	Importer () const
const Epetra_Map &	UniformMap () const
const Epetra_RowMatrix &	UniformMatrix () const
Epetra_CrsMatrix &	CrsUniformMatrix ()
int	RedistributeA ()
int	ReFactor ()
int	Factor ()
Private Member Functions inherited from Amesos_Time
	Amesos_Time ()
	Default constructor to create size timers. More...
virtual	~Amesos_Time ()
	Default destructor. More...
void	CreateTimer (const Epetra_Comm &Comm, int size=1)
	Initializes the Time object. More...
void	ResetTimer (const int timerID=0)
	Resets the internally stored time object. More...
int	AddTime (const std::string what, int dataID, const int timerID=0)
	Adds to field what the time elapsed since last call to ResetTimer(). More...
double	GetTime (const std::string what) const
	Gets the cumulative time using the string. More...
double	GetTime (const int dataID) const
	Gets the cumulative time using the dataID. More...
void	GetTiming (Teuchos::ParameterList &list) const
	Load up the current timing information into the parameter list. More...
Private Member Functions inherited from Amesos_NoCopiable
	Amesos_NoCopiable ()
	Default constructor. More...
	~Amesos_NoCopiable ()
	Default destructor. More...
Private Member Functions inherited from Amesos_Utils
	Amesos_Utils ()
	Default constructor. More...
	~Amesos_Utils ()
	Default destructor. More...
void	ComputeTrueResidual (const Epetra_RowMatrix &Matrix, const Epetra_MultiVector &X, const Epetra_MultiVector &B, const bool UseTranspose, const std::string prefix) const
	Computes the true residual, B - Matrix * X, and prints the results. More...
void	ComputeVectorNorms (const Epetra_MultiVector &X, const Epetra_MultiVector &B, const std::string prefix) const
	Computes the norms of X and B and print the results. More...
void	PrintLine () const
	Prints line on std::cout. More...
void	SetMaxProcesses (int &MaxProcesses, const Epetra_RowMatrix &A)
Private Member Functions inherited from Amesos_Control
	Amesos_Control ()
	Default constructor. More...
	~Amesos_Control ()
	Default destructor. More...
void	SetControlParameters (const Teuchos::ParameterList &ParameterList)
Private Member Functions inherited from Amesos_Status
	Amesos_Status ()
	Default constructor. More...
	~Amesos_Status ()
	Default destructor. More...
void	SetStatusParameters (const Teuchos::ParameterList &ParameterList)

Private Attributes
Teuchos::RCP < Amesos_Superlu_Pimpl >	PrivateSuperluData_
const Epetra_LinearProblem *	Problem_
Epetra_RowMatrix *	RowMatrixA_
RCP< Epetra_Map >	UniformMap_
RCP< Epetra_CrsMatrix >	CrsUniformMatrix_
RCP< Epetra_RowMatrix >	UniformMatrix_
Teuchos::RCP< Epetra_Import >	Importer_
bool	ReuseSymbolic_
	Allows FactOption to be used on subsequent calls to pdgssvx from NumericFactorization. More...
bool	Redistribute_
	redistribute the input matrix prior to calling Superludist More...
int	GridCreated_
	true if the SuperLU_DIST's grid has been created (and has to be free'd) More...
int	FactorizationDone_
bool	FactorizationOK_
	true if NumericFactorization() has been successfully called. More...
int	NumGlobalRows_
	Global dimension of the matrix. More...
std::vector< int >	Ap_
std::vector< int >	Ai_
std::vector< double >	Aval_
int *	Global_Columns_
	Contains the global ID of local columns. More...
int	nprow_
int	npcol_
bool	PrintNonzeros_
std::string	ColPerm_
std::string	RowPerm_
int *	perm_c_
int *	perm_r_
std::string	IterRefine_
bool	ReplaceTinyPivot_
bool	Equil_
int	MtxConvTime_
int	MtxRedistTime_
int	VecRedistTime_
int	NumFactTime_
int	SolveTime_
int	OverheadTime_
Private Attributes inherited from Amesos_Control
double	AddToDiag_
	Add this value to the diagonal. More...
bool	refactorize_
double	rcond_threshold_
	If error is greater than this value, perform symbolic and numeric factorization with full partial pivoting. More...
int	ScaleMethod_
bool	AddZeroToDiag_
	Adds zero to diagonal of redistributed matrix (some solvers choke on a matrix with a partly empty diag) More...
int	MatrixProperty_
	Set the matrix property. More...
int	MaxProcesses_
bool	Reindex_
	If true, the Amesos class should reindex the matrix to standard indexing (i.e. More...
Private Attributes inherited from Amesos_Status
bool	IsSymbolicFactorizationOK_
	If true, SymbolicFactorization() has been successfully called. More...
bool	IsNumericFactorizationOK_
	If true, NumericFactorization() has been successfully called. More...
bool	PrintTiming_
	If true, prints timing information in the destructor. More...
bool	PrintStatus_
	If true, print additional information in the destructor. More...
bool	ComputeVectorNorms_
	If true, prints the norms of X and B in Solve(). More...
bool	ComputeTrueResidual_
	If true, computes the true residual in Solve(). More...
int	verbose_
	Toggles the output level. More...
int	debug_
	Sets the level of debug_ output. More...
int	NumSymbolicFact_
	Number of symbolic factorization phases. More...
int	NumNumericFact_
	Number of numeric factorization phases. More...
int	NumSolve_
	Number of solves. More...
double	Threshold_
int	MyPID_
int	NumProcs_
	Amesos_Superludist (const Epetra_LinearProblem &LinearProblem)
	Amesos_Superludist Constructor. More...
	~Amesos_Superludist (void)
	Amesos_Superludist Destructor. More...
int	SymbolicFactorization ()
	Performs SymbolicFactorization on the matrix A. More...
int	NumericFactorization ()
	Performs NumericFactorization on the matrix A. More...
int	Solve ()
	Solves A X = B (or AT x = B) More...
int	SetUseTranspose (bool UseTranspose)
	Amesos_Superludist does not support transpose at this time. More...
const Epetra_LinearProblem *	GetProblem () const
	Returns the Epetra_LinearProblem. More...
bool	MatrixShapeOK () const
	Returns true if SUPERLUDIST can handle this matrix shape. More...
bool	UseTranspose () const
	Always returns false. Superludist doesn't support transpose solve. More...

Detailed Description

Amesos_Superludist: An object-oriented wrapper for Superludist.

Amesos_Superludist will solve a linear systems of equations: A X = B using Epetra objects and the Superludist solver library, where A is an Epetra_RowMatrix and X and B are Epetra_MultiVector objects.

Definition at line 64 of file Amesos_Superludist.h.

Constructor & Destructor Documentation

Amesos_Superludist::Amesos_Superludist

(

const Epetra_LinearProblem &

LinearProblem

)

Amesos_Superludist Constructor.

Creates an Amesos_Superludist instance, using an Epetra_LinearProblem, passing in an already-defined Epetra_LinearProblem object.

Note: The operator in LinearProblem must be an Epetra_RowMatrix.

Definition at line 116 of file Amesos_Superludist.cpp.

Amesos_Superludist::~Amesos_Superludist

(

void

)

Amesos_Superludist Destructor.

Completely deletes an Amesos_Superludist object.

Definition at line 170 of file Amesos_Superludist.cpp.

Member Function Documentation

int Amesos_Superludist::SymbolicFactorization ( )

virtual

Performs SymbolicFactorization on the matrix A.

In addition to performing symbolic factorization on the matrix A, the call to SymbolicFactorization() implies that no change will be made to the non-zero structure of the underlying matrix without a subsequent call to SymbolicFactorization().

<br >Preconditions:

• GetProblem().GetOperator() != 0 (return -1)
• MatrixShapeOk(GetProblem().GetOperator()) == true (return -6)

<br >Postconditions:

• Symbolic Factorization will be performed (or marked to be performed) allowing NumericFactorization() and Solve() to be called.

Returns

Integer error code, set to 0 if successful.

Implements Amesos_BaseSolver.

Definition at line 688 of file Amesos_Superludist.cpp.

int Amesos_Superludist::NumericFactorization ( )

virtual

Performs NumericFactorization on the matrix A.

In addition to performing numeric factorization on the matrix A, the call to NumericFactorization() implies that no change will be made to the underlying matrix without a subsequent call to NumericFactorization().

<br >Preconditions:

• GetProblem().GetOperator() != 0 (return -1)
• MatrixShapeOk(GetProblem().GetOperator()) == true (return -6)
• The non-zero structure of the matrix should not have changed since the last call to SymbolicFactorization(). (return -2 if the number of non-zeros changes) Other changes can have arbitrary consequences.
• The distribution of the matrix should not have changed since the last call to SymbolicFactorization()
• The matrix should be indexed from 0 to n-1, unless the parameter "Reindex" was set to "true" prior to the call to SymbolicFactorization(). (return -3 - if caught)
• The paremeter "Reindex" should not be set to "true" except on CrsMatrices. (return -4)
• The paremeter "Reindex" should not be set to "true" unless Amesos was built with EpetraExt, i.e. with –enable-epetraext on the configure line. (return -4)
• Internal errors retur -5.

<br >Postconditions:

• Numeric Factorization will be performed (or marked to be performed) allowing Solve() to be performed correctly despite a potential change in in the matrix values (though not in the non-zero structure).

Returns

Integer error code, set to 0 if successful.

Implements Amesos_BaseSolver.

Definition at line 696 of file Amesos_Superludist.cpp.

int Amesos_Superludist::Solve ( )

virtual

Solves A X = B (or A^T x = B)

<br >Preconditions:

• GetProblem().GetOperator() != 0 (return -1)
• MatrixShapeOk(GetProblem().GetOperator()) == true (return -6)
• GetProblem()->CheckInput (see Epetra_LinearProblem::CheckInput() for return values)
• The non-zero structure of the matrix should not have changed since the last call to SymbolicFactorization().
• The distribution of the matrix should not have changed since the last call to SymbolicFactorization()
• The matrix should not have changed since the last call to NumericFactorization().

<br >Postconditions:

• X will be set such that A X = B (or A^T X = B), within the limits of the accuracy of the underlying solver.

Returns

Integer error code, set to 0 if successful.

Implements Amesos_BaseSolver.

Definition at line 731 of file Amesos_Superludist.cpp.

int Amesos_Superludist::SetUseTranspose ( bool  UseTranspose )

inlinevirtual

Amesos_Superludist does not support transpose at this time.

returns 0 if UseTranspose is set to false, else 1 (failure)

Implements Amesos_BaseSolver.

Definition at line 105 of file Amesos_Superludist.h.

const Epetra_LinearProblem* Amesos_Superludist::GetProblem ( ) const

inlinevirtual

Returns the Epetra_LinearProblem.

Warning! Do not call return->SetOperator(...) to attempt to change the Epetra_Operator object (even if the new matrix has the same structure). This new operator matrix will be ignored!

Implements Amesos_BaseSolver.

Definition at line 110 of file Amesos_Superludist.h.

bool Amesos_Superludist::MatrixShapeOK ( ) const

virtual

Returns true if SUPERLUDIST can handle this matrix shape.

Returns true if the matrix shape is one that SUPERLUDIST can handle. SUPERLUDIST only works with square matrices.

Implements Amesos_BaseSolver.

Definition at line 678 of file Amesos_Superludist.cpp.

bool Amesos_Superludist::UseTranspose ( ) const

inlinevirtual

Always returns false. Superludist doesn't support transpose solve.

Implements Amesos_BaseSolver.

Definition at line 119 of file Amesos_Superludist.h.

int Amesos_Superludist::SetParameters ( Teuchos::ParameterList &  ParameterList )

virtual

Updates internal variables.

  <br \>Preconditions:<ul>
  <li>None.</li>
  </ul>

  <br \>Postconditions:<ul> 
  <li>Internal variables controlling the factorization and solve will
  be updated and take effect on all subseuent calls to NumericFactorization() 
  and Solve().</li>
  <li>All parameters whose value are to differ from the default values must 

be included in ParameterList. Parameters not specified in ParameterList revert to their default values.

Returns

Integer error code, set to 0 if successful.

Implements Amesos_BaseSolver.

Definition at line 190 of file Amesos_Superludist.cpp.

int Amesos_Superludist::NumSymbolicFact ( ) const

inlinevirtual

Returns the number of symbolic factorizations performed by this object.

Implements Amesos_BaseSolver.

Definition at line 125 of file Amesos_Superludist.h.

int Amesos_Superludist::NumNumericFact ( ) const

inlinevirtual

Returns the number of numeric factorizations performed by this object.

Implements Amesos_BaseSolver.

Definition at line 128 of file Amesos_Superludist.h.

int Amesos_Superludist::NumSolve ( ) const

inlinevirtual

Returns the number of solves performed by this object.

Implements Amesos_BaseSolver.

Definition at line 131 of file Amesos_Superludist.h.

void Amesos_Superludist::PrintTiming ( ) const

virtual

Print various timig.

Implements Amesos_BaseSolver.

Definition at line 854 of file Amesos_Superludist.cpp.

void Amesos_Superludist::PrintStatus ( ) const

virtual

Print various information about the parameters used by Superludist.

Implements Amesos_BaseSolver.

Definition at line 819 of file Amesos_Superludist.cpp.

void Amesos_Superludist::GetTiming ( Teuchos::ParameterList &  TimingParameterList ) const

inlinevirtual

Extracts timing information from the current solver and places it in the parameter list.

Reimplemented from Amesos_BaseSolver.

Definition at line 140 of file Amesos_Superludist.h.

const Epetra_Comm& Amesos_Superludist::Comm ( ) const

inlineprivatevirtual

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

Implements Amesos_BaseSolver.

Definition at line 143 of file Amesos_Superludist.h.

const Epetra_Import& Amesos_Superludist::Importer ( ) const

inlineprivate

Definition at line 145 of file Amesos_Superludist.h.

const Epetra_Map& Amesos_Superludist::UniformMap ( ) const

inlineprivate

Definition at line 150 of file Amesos_Superludist.h.

const Epetra_RowMatrix& Amesos_Superludist::UniformMatrix ( ) const

inlineprivate

Definition at line 155 of file Amesos_Superludist.h.

Epetra_CrsMatrix& Amesos_Superludist::CrsUniformMatrix ( )

inlineprivate

Definition at line 160 of file Amesos_Superludist.h.

int Amesos_Superludist::RedistributeA ( )

private

Definition at line 258 of file Amesos_Superludist.cpp.

int Amesos_Superludist::ReFactor ( )

private

Definition at line 590 of file Amesos_Superludist.cpp.

int Amesos_Superludist::Factor ( void  )

private

Definition at line 319 of file Amesos_Superludist.cpp.

Member Data Documentation

Teuchos::RCP<Amesos_Superlu_Pimpl> Amesos_Superludist::PrivateSuperluData_

private

Definition at line 169 of file Amesos_Superludist.h.

const Epetra_LinearProblem* Amesos_Superludist::Problem_

private

Definition at line 176 of file Amesos_Superludist.h.

Epetra_RowMatrix* Amesos_Superludist::RowMatrixA_

private

Definition at line 177 of file Amesos_Superludist.h.

RCP<Epetra_Map> Amesos_Superludist::UniformMap_

private

Definition at line 179 of file Amesos_Superludist.h.

RCP<Epetra_CrsMatrix> Amesos_Superludist::CrsUniformMatrix_

private

Definition at line 180 of file Amesos_Superludist.h.

RCP<Epetra_RowMatrix> Amesos_Superludist::UniformMatrix_

private

Definition at line 181 of file Amesos_Superludist.h.

Teuchos::RCP<Epetra_Import> Amesos_Superludist::Importer_

private

Definition at line 182 of file Amesos_Superludist.h.

bool Amesos_Superludist::ReuseSymbolic_

private

Allows FactOption to be used on subsequent calls to pdgssvx from NumericFactorization.

Definition at line 185 of file Amesos_Superludist.h.

bool Amesos_Superludist::Redistribute_

private

redistribute the input matrix prior to calling Superludist

Definition at line 187 of file Amesos_Superludist.h.

int Amesos_Superludist::GridCreated_

private

true if the SuperLU_DIST's grid has been created (and has to be free'd)

Definition at line 190 of file Amesos_Superludist.h.

int Amesos_Superludist::FactorizationDone_

private

Definition at line 191 of file Amesos_Superludist.h.

bool Amesos_Superludist::FactorizationOK_

private

true if NumericFactorization() has been successfully called.

Definition at line 193 of file Amesos_Superludist.h.

int Amesos_Superludist::NumGlobalRows_

private

Global dimension of the matrix.

Definition at line 196 of file Amesos_Superludist.h.

std::vector<int> Amesos_Superludist::Ap_

private

Definition at line 199 of file Amesos_Superludist.h.

std::vector<int> Amesos_Superludist::Ai_

private

Definition at line 200 of file Amesos_Superludist.h.

std::vector<double> Amesos_Superludist::Aval_

private

Definition at line 201 of file Amesos_Superludist.h.

int* Amesos_Superludist::Global_Columns_

private

Contains the global ID of local columns.

Definition at line 203 of file Amesos_Superludist.h.

int Amesos_Superludist::nprow_

private

Definition at line 205 of file Amesos_Superludist.h.

int Amesos_Superludist::npcol_

private

Definition at line 206 of file Amesos_Superludist.h.

bool Amesos_Superludist::PrintNonzeros_

private

Definition at line 208 of file Amesos_Superludist.h.

std::string Amesos_Superludist::ColPerm_

private

Definition at line 209 of file Amesos_Superludist.h.

std::string Amesos_Superludist::RowPerm_

private

Definition at line 210 of file Amesos_Superludist.h.

int* Amesos_Superludist::perm_c_

private

Definition at line 211 of file Amesos_Superludist.h.

int* Amesos_Superludist::perm_r_

private

Definition at line 212 of file Amesos_Superludist.h.

std::string Amesos_Superludist::IterRefine_

private

Definition at line 213 of file Amesos_Superludist.h.

bool Amesos_Superludist::ReplaceTinyPivot_

private

Definition at line 214 of file Amesos_Superludist.h.

bool Amesos_Superludist::Equil_

private

Definition at line 215 of file Amesos_Superludist.h.

int Amesos_Superludist::MtxConvTime_

private

Definition at line 217 of file Amesos_Superludist.h.

int Amesos_Superludist::MtxRedistTime_

private

Definition at line 217 of file Amesos_Superludist.h.

int Amesos_Superludist::VecRedistTime_

private

Definition at line 217 of file Amesos_Superludist.h.

int Amesos_Superludist::NumFactTime_

private

Definition at line 218 of file Amesos_Superludist.h.

int Amesos_Superludist::SolveTime_

private

Definition at line 218 of file Amesos_Superludist.h.

int Amesos_Superludist::OverheadTime_

private

Definition at line 218 of file Amesos_Superludist.h.

---

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

• Amesos_Superludist.h
• Amesos_Superludist.cpp