Ifpack_Utils.cpp File Reference

#include "Ifpack_ConfigDefs.h"
#include "Ifpack_Preconditioner.h"
#include "Ifpack_Utils.h"
#include "Epetra_Comm.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_CrsGraph.h"
#include "Epetra_Map.h"
#include "Epetra_BlockMap.h"
#include "Epetra_Import.h"
#include "Epetra_MultiVector.h"
#include "Epetra_Vector.h"
#include <iomanip>
#include "limits.h"
#include "float.h"
#include "Epetra_FECrsMatrix.h"

Include dependency graph for Ifpack_Utils.cpp:

Go to the source code of this file.

Functions
void	Ifpack_PrintLine ()
	Prints a line of `=' on cout. More...
void	Ifpack_BreakForDebugger (Epetra_Comm &Comm)
	Stops the execution of code, so that a debugger can be attached. More...
Epetra_CrsMatrix *	Ifpack_CreateOverlappingCrsMatrix (const Epetra_RowMatrix *Matrix, const int OverlappingLevel)
	Creates an overlapping Epetra_CrsMatrix. Returns 0 if OverlappingLevel is 0. More...
Epetra_CrsGraph *	Ifpack_CreateOverlappingCrsMatrix (const Epetra_CrsGraph *Graph, const int OverlappingLevel)
	Creates an overlapping Epetra_CrsGraph. Returns 0 if OverlappingLevel is 0. More...
std::string	Ifpack_toString (const int &x)
	Converts an integer to std::string. More...
std::string	Ifpack_toString (const double &x)
	Converts a double to std::string. More...
int	Ifpack_PrintResidual (char *Label, const Epetra_RowMatrix &A, const Epetra_MultiVector &X, const Epetra_MultiVector &Y)
	Prints on cout the true residual. More...
int	Ifpack_PrintResidual (const int iter, const Epetra_RowMatrix &A, const Epetra_MultiVector &X, const Epetra_MultiVector &Y)
void	Ifpack_PrintSparsity_Simple (const Epetra_RowMatrix &A)
double	Ifpack_FrobeniusNorm (const Epetra_RowMatrix &A)
static void	print ()
template<class T >
static void	print (const char str[], T val)
template<class T >
static void	print (const char str[], T val, double percentage)
template<class T >
static void	print (const char str[], T one, T two, T three, bool equal=true)
int	Ifpack_Analyze (const Epetra_RowMatrix &A, const bool Cheap, const int NumPDEEqns)
	Analyzes the basic properties of the input matrix A; see ifp_analyze. More...
int	Ifpack_AnalyzeVectorElements (const Epetra_Vector &Diagonal, const bool abs, const int steps)
	Analyzes the distribution of values of the input vector Diagonal. More...
int	Ifpack_AnalyzeMatrixElements (const Epetra_RowMatrix &A, const bool abs, const int steps)
	Analyzes the distribution of values of the input matrix A. More...
int	Ifpack_PrintSparsity (const Epetra_RowMatrix &A, const char *InputFileName, const int NumPDEEqns)

Function Documentation

void Ifpack_PrintLine

(

)

Prints a line of `=' on cout.

Definition at line 55 of file Ifpack_Utils.cpp.

void Ifpack_BreakForDebugger

(

Epetra_Comm &

Comm

)

Stops the execution of code, so that a debugger can be attached.

Definition at line 61 of file Ifpack_Utils.cpp.

Epetra_CrsMatrix* Ifpack_CreateOverlappingCrsMatrix	(	const Epetra_RowMatrix *	Matrix,
		const int	OverlappingLevel
	)

Creates an overlapping Epetra_CrsMatrix. Returns 0 if OverlappingLevel is 0.

Definition at line 102 of file Ifpack_Utils.cpp.

Epetra_CrsGraph* Ifpack_CreateOverlappingCrsMatrix	(	const Epetra_CrsGraph *	Graph,
		const int	OverlappingLevel
	)

Creates an overlapping Epetra_CrsGraph. Returns 0 if OverlappingLevel is 0.

Definition at line 182 of file Ifpack_Utils.cpp.

std::string Ifpack_toString

(

const int &

x

)

Converts an integer to std::string.

Definition at line 242 of file Ifpack_Utils.cpp.

std::string Ifpack_toString

(

const double &

x

)

Converts a double to std::string.

Definition at line 250 of file Ifpack_Utils.cpp.

int Ifpack_PrintResidual	(	char *	Label,
		const Epetra_RowMatrix &	A,
		const Epetra_MultiVector &	X,
		const Epetra_MultiVector &	Y
	)

Prints on cout the true residual.

Definition at line 258 of file Ifpack_Utils.cpp.

int Ifpack_PrintResidual	(	const int	iter,
		const Epetra_RowMatrix &	A,
		const Epetra_MultiVector &	X,
		const Epetra_MultiVector &	Y
	)

Definition at line 273 of file Ifpack_Utils.cpp.

void Ifpack_PrintSparsity_Simple

(

const Epetra_RowMatrix &

A

)

Definition at line 299 of file Ifpack_Utils.cpp.

double Ifpack_FrobeniusNorm

(

const Epetra_RowMatrix &

A

)

Definition at line 346 of file Ifpack_Utils.cpp.

static void print ( )

static

Definition at line 369 of file Ifpack_Utils.cpp.

template<class T >

static void print ( const char  str[], T  val  )

static

Definition at line 376 of file Ifpack_Utils.cpp.

template<class T >

static void print ( const char  str[], T  val, double  percentage  )

static

Definition at line 384 of file Ifpack_Utils.cpp.

template<class T >

static void print ( const char  str[], T  one, T  two, T  three, bool  equal = true  )

static

Definition at line 394 of file Ifpack_Utils.cpp.

int Ifpack_Analyze	(	const Epetra_RowMatrix &	A,
		const bool	Cheap,
		const int	NumPDEEqns
	)

Analyzes the basic properties of the input matrix A; see ifp_analyze.

Definition at line 418 of file Ifpack_Utils.cpp.

int Ifpack_AnalyzeVectorElements	(	const Epetra_Vector &	Diagonal,
		const bool	abs = false,
		const int	steps = 10
	)

Analyzes the distribution of values of the input vector Diagonal.

Parameters

Diagonal	- (In) Vector to be analyzed.
abs	- (In) if true, the function will analyze vector B, whose elements are defined as .
steps	- (In) number of intervals for the analysis.

An example of output is reported ifp_vector.

Definition at line 841 of file Ifpack_Utils.cpp.

int Ifpack_AnalyzeMatrixElements	(	const Epetra_RowMatrix &	A,
		const bool	abs = false,
		const int	steps = 10
	)

Analyzes the distribution of values of the input matrix A.

Parameters

A	- (In) matrix to be analyzed.
abs	- (In) if true, the function will analyze matrix B, whose elements are defined as .
steps	- (In) number of intervals for the analysis.

An example of output is reported ifp_matrix.

Definition at line 900 of file Ifpack_Utils.cpp.

int Ifpack_PrintSparsity	(	const Epetra_RowMatrix &	A,
		const char *	InputFileName,
		const int	NumPDEEqns
	)

Definition at line 975 of file Ifpack_Utils.cpp.