az_ifpack.h

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 "ifp_c_wrappers.h"
00031 /**********************************************************************/
00032 /**********************************************************************/
00033 /**********************************************************************/
00034 
00035 struct AZ_IFPACK_STRUCT {                  
00036 /* Data passing structure. This user */
00037 /* defined data structure is used to pass information through   */
00038 /* Aztec and back into the user's matrix-vector product. */
00039   int nr, nc;
00040   void *precon, *bmat;
00041   double *input_vector;
00042   int user_precon;
00043   void *user_aux_ptr;
00044 };
00045 
00046 typedef struct AZ_IFPACK_STRUCT AZ_IFPACK;
00047 
00048 void AZ_ifpack_prec_create(double *x, double *b,
00049                int *options, double *params,
00050                int *proc_config,
00051                AZ_MATRIX *Amat, AZ_PRECOND **Prec);
00052 
00053 void AZ_ifpack_iterate(double *x, double *b,
00054                int *options, double *params, 
00055                double *status, int *proc_config,
00056                AZ_MATRIX *Amat);
00057 
00058 void AZ_ifpack_precon(double x[], int *, int *,
00059                      double *, AZ_MATRIX *Amat, AZ_PRECOND *prec);
00060 
00061 void AZ_ifpack_prec_destroy(int *options, double *params,
00062                  int *proc_config, AZ_MATRIX *Amat, AZ_PRECOND *Prec);
00063 
00064 void az2ifp_blockmatrix (void **bmat, AZ_MATRIX *Amat);

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