SRC/dutil.c File Reference

Matrix utility functions. More...

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

Functions

void dCreate_CompCol_Matrix (SuperMatrix *A, int m, int n, int nnz, double *nzval, int *rowind, int *colptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
 Supernodal LU factor related.
void dCreate_CompRow_Matrix (SuperMatrix *A, int m, int n, int nnz, double *nzval, int *colind, int *rowptr, Stype_t stype, Dtype_t dtype, Mtype_t mtype)
void dCopy_CompCol_Matrix (SuperMatrix *A, SuperMatrix *B)
 Copy matrix A into matrix B.
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)
 Copies a two-dimensional matrix X to another matrix Y.
void dCreate_SuperNode_Matrix (SuperMatrix *L, int m, int n, int nnz, double *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 dCompRow_to_CompCol (int m, int n, int nnz, double *a, int *colind, int *rowptr, double **at, int **rowind, int **colptr)
 Convert a row compressed storage into a column compressed storage.
void dPrint_CompCol_Matrix (char *what, SuperMatrix *A)
 Routines for debugging.
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 *xprune, GlobalLU_t *Glu)
 Diagnostic print of column "jcol" in the U/L factor.
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".
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.
void dfill (double *a, int alen, double dval)
 Fills a double precision array with a given value.
void dinf_norm_error (int nrhs, SuperMatrix *X, double *xtrue)
 Check the inf-norm of the error vector.
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.
 print_double_vec (char *what, int n, double *vec)


Detailed Description

 -- 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

void dcheck_tempv int  n,
double *  tempv
 

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

void dCopy_CompCol_Matrix SuperMatrix A,
SuperMatrix B
 

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

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

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

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

void dCreate_SuperNode_Matrix SuperMatrix L,
int  m,
int  n,
int  nnz,
double *  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 dfill double *  a,
int  alen,
double  dval
 

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

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

void dinf_norm_error int  nrhs,
SuperMatrix X,
double *  xtrue
 

void dPrint_CompCol_Matrix char *  what,
SuperMatrix A
 

void dPrint_Dense_Matrix char *  what,
SuperMatrix A
 

void dprint_lu_col char *  msg,
int  jcol,
int  pivrow,
int *  xprune,
GlobalLU_t Glu
 

void dPrint_SuperNode_Matrix char *  what,
SuperMatrix A
 

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_double_vec char *  what,
int  n,
double *  vec
 


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