Matrix utility functions. More...

#include <math.h>
#include "slu_ddefs.h"

Include dependency graph for dutil.c:

Functions
void	dCreate_CompCol_Matrix (SuperMatrix A, int m, int n, int_t nnz, double nzval, int_t rowind, int_t colptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
	Supernodal LU factor related. More...

void	dCreate_CompRow_Matrix (SuperMatrix A, int m, int n, int_t nnz, double nzval, int_t colind, int_t rowptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)

void	dCopy_CompCol_Matrix (SuperMatrix A, SuperMatrix B)
	Copy matrix A into matrix B. More...

void	dCreate_Dense_Matrix (SuperMatrix X, int m, int n, double x, int ldx, Stype_t stype, Dtype_t dtype, Mtype_t mtype)

void	dCopy_Dense_Matrix (int M, int N, double X, int ldx, double Y, int ldy)

void	dCreate_SuperNode_Matrix (SuperMatrix L, int m, int n, int_t nnz, double nzval, int_t nzval_colptr, int_t rowind, int_t rowind_colptr, int col_to_sup, int *sup_to_col, Stype_t stype, Dtype_t dtype, Mtype_t mtype)

void	dCompRow_to_CompCol (int m, int n, int_t nnz, double a, int_t colind, int_t rowptr, double at, int_t rowind, int_t *colptr)
	Convert a row compressed storage into a column compressed storage. More...

void	dPrint_CompCol_Matrix (char what, SuperMatrix A)
	Routines for debugging. More...

void	dPrint_SuperNode_Matrix (char what, SuperMatrix A)

void	dPrint_Dense_Matrix (char what, SuperMatrix A)

void	dprint_lu_col (char msg, int jcol, int pivrow, int_t xprune, GlobalLU_t *Glu)
	Diagnostic print of column "jcol" in the U/L factor. More...

void	dcheck_tempv (int n, double *tempv)
	Check whether tempv[] == 0. This should be true before and after calling any numeric routines, i.e., "panel_bmod" and "column_bmod". More...

void	dGenXtrue (int n, int nrhs, double *x, int ldx)

void	dFillRHS (trans_t trans, int nrhs, double x, int ldx, SuperMatrix A, SuperMatrix *B)
	Let rhs[i] = sum of i-th row of A, so the solution vector is all 1's. More...

void	dfill (double *a, int alen, double dval)
	Fills a double precision array with a given value. More...

void	dinf_norm_error (int nrhs, SuperMatrix X, double xtrue)
	Check the inf-norm of the error vector. More...

void	dPrintPerf (SuperMatrix L, SuperMatrix U, mem_usage_t mem_usage, double rpg, double rcond, double ferr, double berr, char equed, SuperLUStat_t *stat)
	Print performance of the code. More...

int	print_double_vec (char what, int n, double vec)

Detailed Description

The source code is distributed under BSD license, see the file License.txt at the top-level directory.

-- SuperLU routine (version 3.1) --
Univ. of California Berkeley, Xerox Palo Alto Research Center,
and Lawrence Berkeley National Lab.
August 1, 2008

Copyright (c) 1994 by Xerox Corporation.  All rights reserved.

THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY
EXPRESSED OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.

Permission is hereby granted to use or copy this program for any
purpose, provided the above notices are retained on all copies.
Permission to modify the code and to distribute modified code is
granted, provided the above notices are retained, and a notice that
the code was modified is included with the above copyright notice.

Function Documentation

◆ dcheck_tempv()

void dcheck_tempv	(	int	n,
		double *	tempv
	)

◆ dCompRow_to_CompCol()

void dCompRow_to_CompCol	(	int	m,
		int	n,
		int_t	nnz,
		double *	a,
		int_t *	colind,
		int_t *	rowptr,
		double **	at,
		int_t **	rowind,
		int_t **	colptr
	)

Here is the call graph for this function:

◆ dCopy_CompCol_Matrix()

void dCopy_CompCol_Matrix	(	SuperMatrix *	A,
		SuperMatrix *	B
	)

◆ dCopy_Dense_Matrix()

void dCopy_Dense_Matrix	(	int	M,
		int	N,
		double *	X,
		int	ldx,
		double *	Y,
		int	ldy
	)

Copies a two-dimensional matrix X to another matrix Y.

◆ dCreate_CompCol_Matrix()

void dCreate_CompCol_Matrix	(	SuperMatrix *	A,
		int	m,
		int	n,
		int_t	nnz,
		double *	nzval,
		int_t *	rowind,
		int_t *	colptr,
		Stype_t	stype,
		Dtype_t	dtype,
		Mtype_t	mtype
	)

◆ dCreate_CompRow_Matrix()

void dCreate_CompRow_Matrix	(	SuperMatrix *	A,
		int	m,
		int	n,
		int_t	nnz,
		double *	nzval,
		int_t *	colind,
		int_t *	rowptr,
		Stype_t	stype,
		Dtype_t	dtype,
		Mtype_t	mtype
	)

◆ dCreate_Dense_Matrix()

void dCreate_Dense_Matrix	(	SuperMatrix *	X,
		int	m,
		int	n,
		double *	x,
		int	ldx,
		Stype_t	stype,
		Dtype_t	dtype,
		Mtype_t	mtype
	)

◆ dCreate_SuperNode_Matrix()

void dCreate_SuperNode_Matrix	(	SuperMatrix *	L,
		int	m,
		int	n,
		int_t	nnz,
		double *	nzval,
		int_t *	nzval_colptr,
		int_t *	rowind,
		int_t *	rowind_colptr,
		int *	col_to_sup,
		int *	sup_to_col,
		Stype_t	stype,
		Dtype_t	dtype,
		Mtype_t	mtype
	)

◆ dfill()

void dfill	(	double *	a,
		int	alen,
		double	dval
	)

◆ dFillRHS()

void dFillRHS	(	trans_t	trans,
		int	nrhs,
		double *	x,
		int	ldx,
		SuperMatrix *	A,
		SuperMatrix *	B
	)