AbstractTimeAdaptivityController.hpp

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*/
 
#ifndef ABSTRACTTIMEADAPTIVITYCONTROLLER_HPP_
#define ABSTRACTTIMEADAPTIVITYCONTROLLER_HPP_
 
#include "PetscVecTools.hpp"
 
class AbstractTimeAdaptivityController
{
private:
 
    double mMinimumTimeStep;
 
    double mMaximumTimeStep;
 
    virtual double ComputeTimeStep(double currentTime, Vec currentSolution)=0;
 
public:
 
    AbstractTimeAdaptivityController(double minimumTimeStep, double maximumTimeStep)
        : mMinimumTimeStep(minimumTimeStep),
          mMaximumTimeStep(maximumTimeStep)
    {
        assert(minimumTimeStep>0.0);
        assert(maximumTimeStep>0.0);
        assert(minimumTimeStep < maximumTimeStep);
    }
 
    virtual ~AbstractTimeAdaptivityController()
    {
    }
 
    double GetNextTimeStep(double currentTime, Vec currentSolution)
    {
        double dt = ComputeTimeStep(currentTime, currentSolution);
        if (dt < mMinimumTimeStep)
        {
            dt = mMinimumTimeStep;
        }
        if (dt > mMaximumTimeStep)
        {
            dt = mMaximumTimeStep;
        }
        return dt;
    }
};
 
#endif /*ABSTRACTTIMEADAPTIVITYCONTROLLER_HPP_*/