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Fri, Sep 27, 03:03

petsc_matrix.hh
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/**
* @file petsc_matrix.hh
* @author Aurelia Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @date Mon Jul 21 14:49:49 2014
*
* @brief Interface for PETSc matrices
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_PETSC_MATRIX_HH__
#define __AKANTU_PETSC_MATRIX_HH__
/* -------------------------------------------------------------------------- */
#include "sparse_matrix.hh"
struct Mat;
struct AO;
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
class PetscMatrix : SparseMatrix {
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
class PetscMatrixValue {
public:
PetscMatrixValue(){}
inline PetscMatrixValue operator = (Real v){
MatSetValue(*mat,i,j,v,INSERT_VALUES);
return *this;
};
inline PetscMatrixValue operator += (Real v){
// std::cout << "set " << std::abs(Real(i)-Real(j)) << std::endl;
MatSetValue(*mat,i,j,v,ADD_VALUES);
return *this;
};
inline PetscMatrixValue operator -= (Real v){
MatSetValue(*mat,i,j,-1.*v,ADD_VALUES);
return *this;
};
friend PetscMatrix;
private:
UInt i,j;
Mat * mat;
};
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
PetscMatrix(UInt size,
const SparseMatrixType & sparse_matrix_type,
UInt nb_degree_of_freedom,
const ID & id = "petsc_matrix",
const MemoryID & memory_id = 0);
PetscMatrix(const PetscMatrix & matrix,
const ID & id = "petsc_matrix",
const MemoryID & memory_id = 0);
virtual ~PetscMatrix();
typedef std::pair<UInt, UInt> KeyCOO;
typedef unordered_map<KeyCOO, UInt>::type coordinate_list_map;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
Mat * mat;
AO * ao;
};
__END_AKANTU__
#endif /* __AKANTU_PETSCI_MATRIX_HH__ */

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