2018-01-15 00:23:51 +00:00
|
|
|
/*************************************************************************************
|
2016-01-02 14:51:32 +00:00
|
|
|
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
|
|
|
|
Source file: ./lib/algorithms/Preconditioner.h
|
|
|
|
|
|
|
|
Copyright (C) 2015
|
|
|
|
|
|
|
|
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution directory
|
2018-01-15 00:23:51 +00:00
|
|
|
*************************************************************************************/
|
|
|
|
/* END LEGAL */
|
2015-06-21 11:03:55 +01:00
|
|
|
#ifndef GRID_PRECONDITIONER_H
|
|
|
|
#define GRID_PRECONDITIONER_H
|
|
|
|
|
2018-01-15 00:23:51 +00:00
|
|
|
NAMESPACE_BEGIN(Grid);
|
2015-06-21 11:03:55 +01:00
|
|
|
|
2018-01-15 00:23:51 +00:00
|
|
|
template<class Field> class Preconditioner : public LinearFunction<Field> {
|
|
|
|
virtual void operator()(const Field &src, Field & psi)=0;
|
|
|
|
};
|
2015-06-21 11:03:55 +01:00
|
|
|
|
2018-01-15 00:23:51 +00:00
|
|
|
template<class Field> class TrivialPrecon : public Preconditioner<Field> {
|
|
|
|
public:
|
|
|
|
void operator()(const Field &src, Field & psi){
|
|
|
|
psi = src;
|
|
|
|
}
|
|
|
|
TrivialPrecon(void){};
|
|
|
|
};
|
2015-06-21 11:03:55 +01:00
|
|
|
|
2018-01-15 00:23:51 +00:00
|
|
|
NAMESPACE_END(Grid);
|
2015-06-21 11:03:55 +01:00
|
|
|
#endif
|