ladel_add.h File Reference

Detailed Description

Routines to add matrices.

Author

Ben Hermans

The add_matrices and add_matrices_pattern routines compute the scaled addition of the matrices provided or of the patterns of the matrices respectively.

Definition in file ladel_add.h.

#include "ladel_types.h"

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Functions
ladel_sparse_matrix *	ladel_add_matrices (ladel_double alpha, const ladel_sparse_matrix *A, ladel_double beta, const ladel_sparse_matrix *B, ladel_work *work)
	Returns a sparse matrix \(C = \alpha A + \beta B\). More...
ladel_sparse_matrix *	ladel_add_matrices_pattern (const ladel_sparse_matrix *A, const ladel_sparse_matrix *B, ladel_work *work)
	Returns a pattern matrix whose pattern includes the patterns of A and B. More...
ladel_sparse_matrix *	ladel_add_matrices_advanced (ladel_double alpha, const ladel_sparse_matrix *A, ladel_double beta, const ladel_sparse_matrix *B, ladel_int values, ladel_work *work)
	Returns a sparse matrix \(C = \alpha A + \beta B\) if values==TRUE, or a pattern matrix that includes the patterns of A and B if values==FALSE. More...

Function Documentation

ladel_add_matrices()

ladel_sparse_matrix * ladel_add_matrices	(	ladel_double	alpha,
		const ladel_sparse_matrix *	A,
		ladel_double	beta,
		const ladel_sparse_matrix *	B,
		ladel_work *	work
	)

Returns a sparse matrix \(C = \alpha A + \beta B\).

Parameters

alpha	Scaling for the first matrix
A	The first matrix
beta	Scaling for the second matrix
B	The second matrix
work	LADEL workspace

Returns

\(C = \alpha A + \beta B\)

Definition at line 6 of file ladel_add.c.

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ladel_add_matrices_advanced()

ladel_sparse_matrix * ladel_add_matrices_advanced	(	ladel_double	alpha,
		const ladel_sparse_matrix *	A,
		ladel_double	beta,
		const ladel_sparse_matrix *	B,
		ladel_int	values,
		ladel_work *	work
	)

Returns a sparse matrix \(C = \alpha A + \beta B\) if values==TRUE, or a pattern matrix that includes the patterns of A and B if values==FALSE.

Parameters

alpha	Scaling for the first matrix
A	The first matrix
beta	Scaling for the second matrix
B	The second matrix
values	Flag to choose between values and just pattern
work	LADEL workspace

Returns

\(C = \alpha A + \beta B\) or the sum of the patterns

Definition at line 16 of file ladel_add.c.

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ladel_add_matrices_pattern()

ladel_sparse_matrix * ladel_add_matrices_pattern	(	const ladel_sparse_matrix *	A,
		const ladel_sparse_matrix *	B,
		ladel_work *	work
	)

Returns a pattern matrix whose pattern includes the patterns of A and B.

Parameters

A	The first matrix
B	The second matrix
work	LADEL workspace

Returns

A sparse matrix whose pattern contains that of A and B

Definition at line 11 of file ladel_add.c.

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