zutil.c File Reference

Matrix utility functions. More...

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

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Functions
void	zCreate_CompCol_Matrix (SuperMatrix *A, int m, int n, int_t nnz, doublecomplex *nzval, int_t *rowind, int_t *colptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
	Supernodal LU factor related. More...
void	zCreate_CompRow_Matrix (SuperMatrix *A, int m, int n, int_t nnz, doublecomplex *nzval, int_t *colind, int_t *rowptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void	zCopy_CompCol_Matrix (SuperMatrix *A, SuperMatrix *B)
	Copy matrix A into matrix B. More...
void	zCreate_Dense_Matrix (SuperMatrix *X, int m, int n, doublecomplex *x, int ldx, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void	zCopy_Dense_Matrix (int M, int N, doublecomplex *X, int ldx, doublecomplex *Y, int ldy)
void	zCreate_SuperNode_Matrix (SuperMatrix *L, int m, int n, int_t nnz, doublecomplex *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	zCompRow_to_CompCol (int m, int n, int_t nnz, doublecomplex *a, int_t *colind, int_t *rowptr, doublecomplex **at, int_t **rowind, int_t **colptr)
	Convert a row compressed storage into a column compressed storage. More...
void	zPrint_CompCol_Matrix (char *what, SuperMatrix *A)
	Routines for debugging. More...
void	zPrint_SuperNode_Matrix (char *what, SuperMatrix *A)
void	zPrint_Dense_Matrix (char *what, SuperMatrix *A)
void	zprint_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	zcheck_tempv (int n, doublecomplex *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	zGenXtrue (int n, int nrhs, doublecomplex *x, int ldx)
void	zFillRHS (trans_t trans, int nrhs, doublecomplex *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	zfill (doublecomplex *a, int alen, doublecomplex dval)
	Fills a doublecomplex precision array with a given value. More...
void	zinf_norm_error (int nrhs, SuperMatrix *X, doublecomplex *xtrue)
	Check the inf-norm of the error vector. More...
void	zPrintPerf (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_doublecomplex_vec (char *what, int n, doublecomplex *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_doublecomplex_vec()

int print_doublecomplex_vec	(	char *	what,
		int	n,
		doublecomplex *	vec
	)

zcheck_tempv()

void zcheck_tempv	(	int	n,
		doublecomplex *	tempv
	)

zCompRow_to_CompCol()

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

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zCopy_CompCol_Matrix()

void zCopy_CompCol_Matrix	(	SuperMatrix *	A,
		SuperMatrix *	B
	)

zCopy_Dense_Matrix()

void zCopy_Dense_Matrix	(	int	M,
		int	N,
		doublecomplex *	X,
		int	ldx,
		doublecomplex *	Y,
		int	ldy
	)

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

zCreate_CompCol_Matrix()

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

zCreate_CompRow_Matrix()

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

zCreate_Dense_Matrix()

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

zCreate_SuperNode_Matrix()

void zCreate_SuperNode_Matrix	(	SuperMatrix *	L,
		int	m,
		int	n,
		int_t	nnz,
		doublecomplex *	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
	)

zfill()

void zfill	(	doublecomplex *	a,
		int	alen,
		doublecomplex	dval
	)

zFillRHS()

void zFillRHS	(	trans_t	trans,
		int	nrhs,
		doublecomplex *	x,
		int	ldx,
		SuperMatrix *	A,
		SuperMatrix *	B
	)

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zGenXtrue()

void zGenXtrue	(	int	n,
		int	nrhs,
		doublecomplex *	x,
		int	ldx
	)

zinf_norm_error()

void zinf_norm_error	(	int	nrhs,
		SuperMatrix *	X,
		doublecomplex *	xtrue
	)

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zPrint_CompCol_Matrix()

void zPrint_CompCol_Matrix	(	char *	what,
		SuperMatrix *	A
	)

zPrint_Dense_Matrix()

void zPrint_Dense_Matrix	(	char *	what,
		SuperMatrix *	A
	)

zprint_lu_col()

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

zPrint_SuperNode_Matrix()

void zPrint_SuperNode_Matrix	(	char *	what,
		SuperMatrix *	A
	)

zPrintPerf()

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