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solvers.hh
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/**
* file solvers.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 20 Dec 2017
*
* @brief Free functions for solving
*
* @section LICENCE
*
* Copyright (C) 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 SOLVERS_H
#define SOLVERS_H
#include "solver/solver_cg.hh"
namespace muSpectre {
template <Dim_t Dim>
using Grad_t = Matrices::Tens2_t<Dim>;
template <Dim_t Dim>
using GradIncrements = std::vector<Grad_t<Dim>,
Eigen::aligned_allocator<Grad_t<Dim>>>;
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM=DimS>
typename SystemBase<DimS, DimM>::StrainField_t &
newton_cg (SystemBase<DimS, DimM> & sys,
const GradIncrements<DimM> & delF0,
Formulation form,
const Real cg_tol, const Real newton_tol, const Uint maxiter=0,
Dim_t verbose = 0);
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM=DimS>
inline typename SystemBase<DimS, DimM>::StrainField_t &
newton_cg (SystemBase<DimS, DimM> & sys, const Grad_t<DimM> & delF0,
Formulation form,
const Real cg_tol, const Real newton_tol, const Uint maxiter=0,
Dim_t verbose = 0){
return newton_cg(sys, GradIncrements<DimM>{delF0}, form,
cg_tol, newton_tol, maxiter, verbose);
}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM=DimS>
typename SystemBase<DimS, DimM>::StrainField_t &
de_geus (SystemBase<DimS, DimM> & sys,
const GradIncrements<DimM> & delF0,
Formulation form,
const Real cg_tol, const Real newton_tol, const Uint maxiter=0,
Dim_t verbose = 0);
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM=DimS>
inline typename SystemBase<DimS, DimM>::StrainField_t &
de_geus (SystemBase<DimS, DimM> & sys, const Grad_t<DimM> & delF0,
Formulation form,
const Real cg_tol, const Real newton_tol, const Uint maxiter=0,
Dim_t verbose = 0){
return de_geus(sys, GradIncrements<DimM>{delF0}, form,
cg_tol, newton_tol, maxiter, verbose);
}
} // muSpectre
#endif /* SOLVERS_H */

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