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solver_base.hh
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/**
* file solver_base.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 18 Dec 2017
*
* @brief Base class for solvers
*
* @section LICENSE
*
* Copyright © 2017 Till Junge
*
* µSpectre 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 3, or (at
* your option) any later version.
*
* µSpectre 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 GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef SOLVER_BASE_H
#define SOLVER_BASE_H
#include "solver/solver_error.hh"
#include "common/common.hh"
#include "system/system_base.hh"
#include "common/tensor_algebra.hh"
#include <Eigen/Dense>
#include <vector>
namespace muSpectre {
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM=DimS>
class SolverBase
{
public:
enum class TangentRequirement{NoNeed, NeedEffect, NeedTangents};
using Ccoord = Ccoord_t<DimS>;
using Collection_t = GlobalFieldCollection<DimS, DimM>;
//! Default constructor
SolverBase() = delete;
//! Constructor with domain resolutions
SolverBase(Ccoord resolutions): resolutions{resolutions} {}
//! Copy constructor
SolverBase(const SolverBase &other) = delete;
//! Move constructor
SolverBase(SolverBase &&other) = default;
//! Destructor
virtual ~SolverBase() = default;
//! Copy assignment operator
SolverBase& operator=(const SolverBase &other) = delete;
//! Move assignment operator
SolverBase& operator=(SolverBase &&other) = default;
//! Allocate fields used during the solution
void initialise() {this->collection.initialise(resolutions);}
bool need_tangents() const {
return (this->get_tangent_req() == TangentRequirement::NeedTangents);}
bool need_effect() const {
return (this->get_tangent_req() == TangentRequirement::NeedEffect);}
bool no_need_tangent() const {
return (this->get_tangent_req() == TangentRequirement::NoNeed);}
bool has_converged() const {return this->converged;}
protected:
virtual TangentRequirement get_tangent_req() const = 0;
Ccoord resolutions;
//! storage for internal fields to avoid reallocations between calls
Collection_t collection{};
bool converged{false};
private:
};
} // muSpectre
#endif /* SOLVER_BASE_H */

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