00001 /*@HEADER 00002 // *********************************************************************** 00003 // 00004 // Ifpack: Object-Oriented Algebraic Preconditioner Package 00005 // Copyright (2002) Sandia Corporation 00006 // 00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00008 // license for use of this work by or on behalf of the U.S. Government. 00009 // 00010 // This library is free software; you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as 00012 // published by the Free Software Foundation; either version 2.1 of the 00013 // License, or (at your option) any later version. 00014 // 00015 // This library is distributed in the hope that it will be useful, but 00016 // WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 // Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public 00021 // License along with this library; if not, write to the Free Software 00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00023 // USA 00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 00025 // 00026 // *********************************************************************** 00027 //@HEADER 00028 */ 00029 00030 #undef IFPACK 00031 00032 #ifdef __cplusplus 00033 extern "C" { 00034 #endif 00035 00036 /* 00037 * Data structure for sparse matrices is CSR, 0-based indexing. 00038 */ 00039 typedef struct { 00040 double *val; /* also known as A */ 00041 int *col; /* also known as JA; first column is column 0 */ 00042 int *ptr; /* also known as IA; with ptr[0] = 0 */ 00043 } Matrix; 00044 00045 void quicksort (int *const pbase, double *const daux, size_t total_elems); 00046 00047 void Matrix_dealloc(Matrix *a); 00048 void crout_ict( 00049 int n, 00050 #ifdef IFPACK 00051 void * A, 00052 int maxentries, 00053 int (*getcol)( void * A, int col, int ** nentries, double * val, int * ind), 00054 int (*getdiag)( void *A, double * diag), 00055 #else 00056 const Matrix *AL, 00057 const double *Adiag, 00058 #endif 00059 double droptol, 00060 int lfil, 00061 Matrix *L, 00062 double **pdiag); 00063 00064 #ifdef __cplusplus 00065 } 00066 #endif 00067
1.3.9.1