SolutionTimeAdaptiveDT.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

#include "TimeStepper.h"

#include <fstream>

class SolutionTimeAdaptiveDT : public TimeStepper
{
public:
  static InputParameters validParams();

  SolutionTimeAdaptiveDT(const InputParameters & parameters);
  virtual ~SolutionTimeAdaptiveDT();

  virtual void step() override;

  virtual void rejectStep() override;

protected:
  virtual std::chrono::milliseconds::rep stepAndRecordElapsedTime();

  virtual Real computeInitialDT() override;
  virtual Real computeDT() override;

  int & _direction;

  const Real _percent_change;

  Real & _older_sol_time_vs_dt;
  Real & _old_sol_time_vs_dt;
  Real & _sol_time_vs_dt;

  bool _adapt_log;

  std::ofstream _adaptive_log;
};