predictor_data.hpp

Go to the documentation of this file.

#pragma once
 
#include <deal.II/base/parameter_handler.h>
 
#include <meltpooldg/utilities/enum.hpp>
 
namespace MeltPoolDG
{
  // choose the particular predictor type for the nonlinear/linear solver
  BETTER_ENUM(PredictorType,
              char,
              // use old value as initial guess
              none,
              // use zeros as initial guess
              zero,
              // calculate the predictor by a linear combination from the two old solution vectors
              linear_extrapolation,
              // least squares projection (WIP)
              least_squares_projection)
 
 
  struct PredictorData
  {
    PredictorType type = PredictorType::none;
 
    unsigned int n_old_solution_vectors =
      2; // only relevant for least_squares_projection, otherwise set appropriately
 
    void
    add_parameters(dealii::ParameterHandler &prm);
 
    void
    post();
 
    void
    check_input_parameters() const;
  };
} // namespace MeltPoolDG