Herezh_dev/Resolin/preconditionnement/ilupre_double_GR.h
2023-05-03 17:23:49 +02:00

147 lines
5.2 KiB
C++
Executable file

/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* ******** *** SparseLib++ */
/* ******* ** *** *** *** v. 1.5c */
/* ***** *** ******** ******** */
/* ***** *** ******** ******** R. Pozo */
/* ** ******* *** ** *** *** K. Remington */
/* ******** ******** A. Lumsdaine */
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* */
/* */
/* SparseLib++ : Sparse Matrix Library */
/* */
/* National Institute of Standards and Technology */
/* University of Notre Dame */
/* Authors: R. Pozo, K. Remington, A. Lumsdaine */
/* */
/* NOTICE */
/* */
/* Permission to use, copy, modify, and distribute this software and */
/* its documentation for any purpose and without fee is hereby granted */
/* provided that the above notice appear in all copies and supporting */
/* documentation. */
/* */
/* Neither the Institutions (National Institute of Standards and Technology, */
/* University of Notre Dame) nor the Authors make any representations about */
/* the suitability of this software for any purpose. This software is */
/* provided ``as is'' without expressed or implied warranty. */
/* */
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
// modification GR
// 1) on utilise une interface unique pour tous les préconditionneurs
// d'où l'héritage d'une classe virtuelle
// 2) on utilise sytématiquement les classes templates MV++
#ifndef ILUPRE_GR_H
#define ILUPRE_GR_H
//#include "vecdefs.h"
#include "vecdefs_GR.h" // modif GR
//#include VECTOR_H // modif GR
#include "comprow_double.h"
#include "compcol_double.h"
#include "pre_cond_double.h"
#include "Mat_abstraite.h"
class CompCol_ILUPreconditioner_double : public Pre_cond_double
{
private:
VECTOR_double l_val_;
VECTOR_int l_colptr_;
VECTOR_int l_rowind_;
int l_nz_;
VECTOR_double u_val_;
VECTOR_int u_colptr_;
VECTOR_int u_rowind_;
int u_nz_;
int dim_[2];
public:
CompCol_ILUPreconditioner_double(const CompCol_Mat_double &A);
// cas d'une matrice abstraite
CompCol_ILUPreconditioner_double(const Mat_abstraite &A);
~CompCol_ILUPreconditioner_double(void){};
// méthodes-------
VECTOR_double solve(const VECTOR_double &x) const;
VECTOR_double trans_solve(const VECTOR_double &x) const;
//====================== protégée ========================
protected :
// fonction interne d'initialisation pour éviter la recopie
void Init_CompCol_Mat_double(const CompCol_Mat_double &A);
void Init_Mat_creuse_CompCol(const Mat_abstraite &A);
};
class CompRow_ILUPreconditioner_double : public Pre_cond_double
{
private:
VECTOR_double l_val_;
VECTOR_int l_rowptr_;
VECTOR_int l_colind_;
int l_nz_;
VECTOR_double u_val_;
VECTOR_int u_rowptr_;
VECTOR_int u_colind_;
int u_nz_;
int dim_[2];
public:
CompRow_ILUPreconditioner_double(const CompRow_Mat_double &A);
// cas d'une matrice abstraite
CompRow_ILUPreconditioner_double(const Mat_abstraite &A);
~CompRow_ILUPreconditioner_double(void){};
// méthodes-------
VECTOR_double solve(const VECTOR_double &x) const;
VECTOR_double trans_solve(const VECTOR_double &x) const;
//====================== protégée ========================
protected :
// fonction interne d'initialisation pour éviter la recopie
void Init_CompRow_Mat_double(const CompRow_Mat_double &A);
};
// introduction d'une classe qui regroupe les différentes possibilités de
// stockage matricielle
class ILUPreconditioner_double : public Pre_cond_double
{
public:
// CONSTRUCTEUR
// cas d'une matrice abstraite
ILUPreconditioner_double(const Mat_abstraite &A);
// destructeur
~ILUPreconditioner_double(void);
// méthodes-------
VECTOR_double solve(const VECTOR_double &x) const
{ return preCond_mat->solve(x);};
VECTOR_double trans_solve(const VECTOR_double &x) const
{ return preCond_mat->trans_solve(x);};
//====================== protégée ========================
private:
// pour l'instant deux types de matrices possibles
Pre_cond_double * preCond_mat;
};
#endif