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 // Redistribution and use in source and binary forms, with or without 00011 // modification, are permitted provided that the following conditions are 00012 // met: 00013 // 00014 // 1. Redistributions of source code must retain the above copyright 00015 // notice, this list of conditions and the following disclaimer. 00016 // 00017 // 2. Redistributions in binary form must reproduce the above copyright 00018 // notice, this list of conditions and the following disclaimer in the 00019 // documentation and/or other materials provided with the distribution. 00020 // 00021 // 3. Neither the name of the Corporation nor the names of the 00022 // contributors may be used to endorse or promote products derived from 00023 // this software without specific prior written permission. 00024 // 00025 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY 00026 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00027 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00028 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE 00029 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00030 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00031 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00032 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00033 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00034 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00035 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00036 // 00037 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 00038 // 00039 // *********************************************************************** 00040 //@HEADER 00041 */ 00042 00043 #ifndef IFPACK_IC_UTILS_H 00044 #define IFPACK_IC_UTILS_H 00045 00046 typedef struct { 00047 double *val; /* also known as A */ 00048 int *col; /* also known as JA; first column is column 0 */ 00049 int *ptr; /* also known as IA; with ptr[0] = 0 */ 00050 } Ifpack_AIJMatrix; 00051 00052 extern "C" { 00053 void ifpack_multilist_sort (int *const pbase, double *const daux, int total_elems); 00054 } 00055 00056 void Ifpack_AIJMatrix_dealloc(Ifpack_AIJMatrix *a); 00057 00058 void crout_ict( 00059 int n, 00060 #ifdef IFPACK 00061 void * A, 00062 int maxentries, 00063 int (*getcol)( void * A, int col, int ** nentries, double * val, int * ind), 00064 int (*getdiag)( void *A, double * diag), 00065 #else 00066 const Ifpack_AIJMatrix *AL, 00067 const double *Adiag, 00068 #endif 00069 double droptol, 00070 int lfil, 00071 Ifpack_AIJMatrix *L, 00072 double **pdiag); 00073 00074 00075 #endif
1.7.6.1