trbdf2.hh

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#pragma once
 
// DiFfRG
#include <DiFfRG/common/math.hh>
#include <DiFfRG/common/types.hh>
#include <DiFfRG/discretization/common/abstract_adaptor.hh>
#include <DiFfRG/discretization/common/abstract_assembler.hh>
#include <DiFfRG/discretization/common/abstract_data.hh>
#include <DiFfRG/discretization/data/data_output.hh>
#include <DiFfRG/timestepping/abstract_timestepper.hh>
#include <DiFfRG/timestepping/solver/kinsol.hh>
#include <DiFfRG/timestepping/solver/newton.hh>
#include <DiFfRG/timestepping/timestep_control/PI.hh>
 
namespace DiFfRG
{
  template <typename VectorType, typename SparseMatrixType, uint dim,
            template <typename, typename> typename LinearSolver>
  class TimeStepperTRBDF2 : public AbstractTimestepper<VectorType, SparseMatrixType, dim>
  {
    using Base = AbstractTimestepper<VectorType, SparseMatrixType, dim>;
 
  public:
    using NumberType = typename Base::NumberType;
    using InverseSparseMatrixType = typename Base::InverseSparseMatrixType;
    using BlockVectorType = typename Base::BlockVectorType;
 
    using Base::assembler, Base::data_out, Base::json, Base::adaptor;
    using Base::Base;
    using Base::console_out;
    using Base::verbosity, Base::output_dt, Base::impl, Base::expl;
 
    virtual void run(AbstractFlowingVariables<NumberType> *initial_condition, const double t_start,
                     const double t_stop) override;
 
    uint get_jacobians();
    double get_error();
    void set_ignore_nonconv(bool x);
 
  private:
    std::shared_ptr<Newton<VectorType>> ptr_newton_TR;
    std::shared_ptr<Newton<VectorType>> ptr_newton_BDF2;
  };
} // namespace DiFfRG