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icrout_cholesky_mex.h
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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 #include "Ifpack_config.h"
00031 
00032 #undef IFPACK
00033 
00034 #ifdef __cplusplus
00035 extern "C" {
00036 #endif
00037 
00038 /*
00039  * Data structure for sparse matrices is CSR, 0-based indexing.
00040  */
00041 typedef struct {
00042     double *val;  /* also known as A  */
00043     int    *col;  /* also known as JA; first column is column 0 */
00044     int    *ptr;  /* also known as IA; with ptr[0] = 0 */
00045 } Matrix;
00046 
00047 IFPACK_DEPRECATED void ifpack_quicksort (int *const pbase, double *const daux, size_t total_elems);
00048 
00049 IFPACK_DEPRECATED void Matrix_dealloc(Matrix *a);
00050 IFPACK_DEPRECATED void crout_ict(
00051     int n,
00052 #ifdef IFPACK
00053     void * A,
00054     int maxentries,
00055     int (*getcol)( void * A, int col, int ** nentries, double * val, int * ind),
00056     int (*getdiag)( void *A, double * diag),
00057 #else
00058     const Matrix *AL,
00059     const double *Adiag,
00060 #endif
00061     double droptol,
00062     int lfil,
00063     Matrix *L,
00064     double **pdiag);
00065 
00066 #ifdef __cplusplus
00067 }
00068 #endif
00069 
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