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rLIBMULTISCALE LibMultiScale
matrix.hh
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/**
* @file matrix.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date Fri Jul 11 15:47:44 2014
*
* @brief This is a wrapper to a matrix type to be used when algebra is needed
*
* @section LICENSE
*
* Copyright INRIA and CEA
*
* The LibMultiScale is a C++ parallel framework for the multiscale
* coupling methods dedicated to material simulations. This framework
* provides an API which makes it possible to program coupled simulations
* and integration of already existing codes.
*
* This Project was initiated in a collaboration between INRIA Futurs Bordeaux
* within ScAlApplix team and CEA/DPTA Ile de France.
* The project is now continued at the Ecole Polytechnique Fédérale de Lausanne
* within the LSMS/ENAC laboratory.
*
* This software is governed by the CeCILL-C license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL-C
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited
* liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C license and that you accept its terms.
*
*/
#ifndef __LIBMULTISCALE_MATRIX_HH__
#define __LIBMULTISCALE_MATRIX_HH__
/* -------------------------------------------------------------------------- */
#include <stdio.h>
#include "array.hh"
#include <fstream>
#include <iostream>
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
namespace
math
{
class
MatrixBase
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
MatrixBase
(
UInt
m
,
UInt
n
){
_m
=
m
;
_n
=
n
;};
virtual
~
MatrixBase
(){};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
//! access to the coordinate i,j
virtual
Real
&
at
(
UInt
i
,
UInt
j
)
=
0
;
//! access to the coordinate i,j
virtual
Real
&
operator
()(
UInt
i
,
UInt
j
)
=
0
;
//! perform LU facotrization
virtual
void
factoLU
()
=
0
;
//! solve the system Ax=b where b is the rhs parameter and A is current class.
virtual
void
solve
(
Array
*
rhs
)
=
0
;
//! print to screen the matrix
void
print
(){
this
->
printToFile
(
std
::
cout
);
};
//! print to a given file(by filename) the matrix
void
printToFile
(
char
*
f
){
std
::
ofstream
file
(
f
);
printToFile
(
file
);
};
//! print to file by opened FILE pointer
void
printToFile
(
std
::
ostream
&
file
){
for
(
UInt
i
=
0
;
i
<
_m
;
++
i
)
for
(
UInt
j
=
0
;
j
<
_n
;
++
j
){
if
(
this
->
at
(
i
,
j
)
!=
0
)
file
<<
i
+
1
<<
"
\t
"
<<
j
+
1
<<
"
\t
"
<<
this
->
at
(
i
,
j
)
<<
std
::
endl
;
}
};
//! return m dimention of the matrix
UInt
m
(){
return
_m
;
}
//!return n dimention of the matrix
UInt
n
(){
return
_n
;
}
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected
:
//! dimensions of the matrix
UInt
_m
,
_n
;
//! pivot used to perform facto LU
std
::
vector
<
int
>
pivot
;
};
}
__END_LIBMULTISCALE__
#endif
/* __LIBMULTISCALE_MATRIX_HH__ */
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