Helper class with some matrix operations. More...

#include <matrixops.hpp>

Static Public Member Functions
static void	fromAdjacency (Matrix &A, const AdjacencyPattern &adj, int rows, int cols)
	Create a sparse matrix from a given adjacency pattern. More...

static Matrix	fromDense (const Dune::DynamicMatrix< double > &T)
	Create a sparse matrix from a dense matrix. More...

static void	print (const Matrix &A)
	Print a matrix to stdout. More...

static Matrix	Axpy (const Matrix &A, const Matrix &B, double alpha)
	axpy like operation - returns A+alpha*B More...

static Matrix	augment (const Matrix &A, const Matrix &B, size_t r0, size_t c0, bool symmetric)
	Augment a matrix with another. More...

static Matrix	extractDiagonal (const Matrix &A)
	Extract the diagonal of a matrix into a new matrix. More...

static Matrix	diagonal (size_t N)
	Returns a diagonal matrix. More...

static Matrix	extractBlock (const Matrix &A, size_t r0, size_t N, size_t c0, size_t M)
	Extract a subblock of a matrix into a new matrix. More...

static void	saveAsc (const Matrix &A, const std::string &file)
	Save a matrix as a dense asc file. More...

Detailed Description

Helper class with some matrix operations.

Member Function Documentation

static Matrix Opm::Elasticity::MatrixOps::augment	(	const Matrix &	A,
		const Matrix &	B,
		size_t	r0,
		size_t	c0,
		bool	symmetric
	)

static

Augment a matrix with another.

Parameters

[in]	A	The matrix to be augmented
[in]	B	The matrix to augment with
[in]	r0	The starting row of the augment matrix
[in]	c0	The starting column of the augment matrix
[in]	symmetric	If true, augment symmetrically

static Matrix Opm::Elasticity::MatrixOps::Axpy	(	const Matrix &	A,
		const Matrix &	B,
		double	alpha
	)

static

axpy like operation - returns A+alpha*B

Parameters

[in]	A	The matrix to subtract from
[in]	B	The matrix to subtract
[in]	alpha	The constant in front of B

Returns: A+alpha*B

static Matrix Opm::Elasticity::MatrixOps::diagonal ( size_t N )

static

Returns a diagonal matrix.

Parameters

[in] N The dimension of the matrix

Referenced by Opm::Elasticity::if().

static Matrix Opm::Elasticity::MatrixOps::extractBlock	(	const Matrix &	A,
		size_t	r0,
		size_t	N,
		size_t	c0,
		size_t	M
	)

static

Extract a subblock of a matrix into a new matrix.

Parameters

[in] The matrix to extract from

Returns: The subblock

static Matrix Opm::Elasticity::MatrixOps::extractDiagonal ( const Matrix & A )

static

Extract the diagonal of a matrix into a new matrix.

Parameters

[in] The matrix to extract the diagonal from

Returns: M = diag(A)

static void Opm::Elasticity::MatrixOps::fromAdjacency	(	Matrix &	A,
		const AdjacencyPattern &	adj,
		int	rows,
		int	cols
	)

static

Create a sparse matrix from a given adjacency pattern.

Parameters

[in]	adj	The adjacency pattern
[in]	rows	The number of rows in the matrix
[in]	cols	The number of columns in the matrix
[out]	A	The created matrix

Referenced by Opm::Elasticity::ASMHandler< GridType >::initForAssembly().

static Matrix Opm::Elasticity::MatrixOps::fromDense ( const Dune::DynamicMatrix< double > & T )

static

Create a sparse matrix from a dense matrix.

Parameters

[in] T The dense matrix

Returns: The sparse matrix

Referenced by Opm::Elasticity::if().

static void Opm::Elasticity::MatrixOps::print ( const Matrix & A )

static

Print a matrix to stdout.

Parameters

[in] A The matrix to print

Referenced by Opm::Elasticity::ASMHandler< GridType >::printOperator().

static void Opm::Elasticity::MatrixOps::saveAsc	(	const Matrix &	A,
		const std::string &	file
	)

static

Save a matrix as a dense asc file.

Parameters

[in]	A	The matrix to save
[in]	file	File name

This is only useful for debugging as the files grow very big

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

matrixops.hpp

Static Public Member Functions

Detailed Description

Member Function Documentation