sutil.c File Reference

Matrix utility functions. More...

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

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Functions
void	sCreate_CompCol_Matrix (SuperMatrix *A, int m, int n, int nnz, float *nzval, int *rowind, int *colptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
	Supernodal LU factor related. More...
void	sCreate_CompRow_Matrix (SuperMatrix *A, int m, int n, int nnz, float *nzval, int *colind, int *rowptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void	sCopy_CompCol_Matrix (SuperMatrix *A, SuperMatrix *B)
	Copy matrix A into matrix B. More...
void	sCreate_Dense_Matrix (SuperMatrix *X, int m, int n, float *x, int ldx, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void	sCopy_Dense_Matrix (int M, int N, float *X, int ldx, float *Y, int ldy)
void	sCreate_SuperNode_Matrix (SuperMatrix *L, int m, int n, int nnz, float *nzval, int *nzval_colptr, int *rowind, int *rowind_colptr, int *col_to_sup, int *sup_to_col, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void	sCompRow_to_CompCol (int m, int n, int nnz, float *a, int *colind, int *rowptr, float **at, int **rowind, int **colptr)
	Convert a row compressed storage into a column compressed storage. More...
void	sPrint_CompCol_Matrix (char *what, SuperMatrix *A)
	Routines for debugging. More...
void	sPrint_SuperNode_Matrix (char *what, SuperMatrix *A)
void	sPrint_Dense_Matrix (char *what, SuperMatrix *A)
void	sprint_lu_col (char *msg, int jcol, int pivrow, int *xprune, GlobalLU_t *Glu)
	Diagnostic print of column "jcol" in the U/L factor. More...
void	scheck_tempv (int n, float *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	sGenXtrue (int n, int nrhs, float *x, int ldx)
void	sFillRHS (trans_t trans, int nrhs, float *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	sfill (float *a, int alen, float dval)
	Fills a float precision array with a given value. More...
void	sinf_norm_error (int nrhs, SuperMatrix *X, float *xtrue)
	Check the inf-norm of the error vector. More...
void	sPrintPerf (SuperMatrix *L, SuperMatrix *U, mem_usage_t *mem_usage, float rpg, float rcond, float *ferr, float *berr, char *equed, SuperLUStat_t *stat)
	Print performance of the code. More...
	print_float_vec (char *what, int n, float *vec)

Detailed Description

Copyright (c) 2003, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from U.S. Dept. of Energy)

All rights reserved.

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

print_float_vec	(	char *	what,
		int	n,
		float *	vec
	)

void scheck_tempv	(	int	n,
		float *	tempv
	)

void sCompRow_to_CompCol	(	int	m,
		int	n,
		int	nnz,
		float *	a,
		int *	colind,
		int *	rowptr,
		float **	at,
		int **	rowind,
		int **	colptr
	)

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void sCopy_CompCol_Matrix	(	SuperMatrix *	A,
		SuperMatrix *	B
	)

void sCopy_Dense_Matrix	(	int	M,
		int	N,
		float *	X,
		int	ldx,
		float *	Y,
		int	ldy
	)

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

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

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

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

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

void sfill	(	float *	a,
		int	alen,
		float	dval
	)

void sFillRHS	(	trans_t	trans,
		int	nrhs,
		float *	x,
		int	ldx,
		SuperMatrix *	A,
		SuperMatrix *	B
	)

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void sGenXtrue	(	int	n,
		int	nrhs,
		float *	x,
		int	ldx
	)

void sinf_norm_error	(	int	nrhs,
		SuperMatrix *	X,
		float *	xtrue
	)

void sPrint_CompCol_Matrix	(	char *	what,
		SuperMatrix *	A
	)

void sPrint_Dense_Matrix	(	char *	what,
		SuperMatrix *	A
	)

void sprint_lu_col	(	char *	msg,
		int	jcol,
		int	pivrow,
		int *	xprune,
		GlobalLU_t *	Glu
	)

void sPrint_SuperNode_Matrix	(	char *	what,
		SuperMatrix *	A
	)

void sPrintPerf	(	SuperMatrix *	L,
		SuperMatrix *	U,
		mem_usage_t *	mem_usage,
		float	rpg,
		float	rcond,
		float *	ferr,
		float *	berr,
		char *	equed,
		SuperLUStat_t *	stat
	)