Herezh_dev/Resolin/preconditionnement/icpre_double_GR.h

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2021-09-28 17:28:23 +02:00
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* ******** *** 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 ICPRE_GR_H
#define ICPRE_GR_H
//#include "vecdefs.h"
#include "vecdefs_GR.h" // modif GR
//#include VECTOR_H // modif GR
#include "compcol_double.h"
#include "comprow_double.h"
#include "pre_cond_double.h"
#include "Mat_abstraite.h"
class ICPreconditioner_double : public Pre_cond_double
{
private:
VECTOR_double val_;
VECTOR_int pntr_;
VECTOR_int indx_;
int nz_;
int dim_[2];
public:
ICPreconditioner_double(const CompCol_Mat_double &A);
ICPreconditioner_double(const CompRow_Mat_double &A);
// cas d'une matrice abstraite
ICPreconditioner_double(const Mat_abstraite &A);
// méthodes------
~ICPreconditioner_double(void){};
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_CompRow_Mat_double(const CompRow_Mat_double &A);
void Init_Mat_creuse_CompCol(const Mat_abstraite &A);
};
#endif