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Sun, Nov 10, 12:57

sparse_solver_eigen.hh
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/**
* Copyright (©) 2010-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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/>.
*/
/* -------------------------------------------------------------------------- */
#include "sparse_solver.hh"
/* -------------------------------------------------------------------------- */
#include <Eigen/Sparse>
#include <Eigen/SparseLU>
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_SOLVER_EIGEN_HH_
#define AKANTU_SOLVER_EIGEN_HH_
namespace akantu {
class DOFManagerDefault;
} // namespace akantu
namespace akantu {
class SparseSolverEigen : public SparseSolver {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
SparseSolverEigen(DOFManagerDefault & dof_manager, const ID & matrix_id,
const ID & id = "sparse_solver_eigen");
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
void initialize() override{};
/// solve using residual and solution from the dof_manager
void solve() override;
private:
void setA();
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// DOFManager used by the Eigen implementation of the SparseSolver
DOFManagerDefault & dof_manager;
/// matrix release at last solve
Int last_profile_release{-1};
/// matrix release at last solve
Int last_value_release{-1};
Eigen::SparseMatrix<Real> A;
Eigen::SparseLU<Eigen::SparseMatrix<Real>> solver;
};
} // namespace akantu
#endif /* AKANTU_SOLVER_EIGEN_HH_ */

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