A simple iteration count based adaptive time step control. More...

#include <TimeStepControl.hpp>

Inheritance diagram for Opm::SimpleIterationCountTimeStepControl:

Public Member Functions
	SimpleIterationCountTimeStepControl (const int target_iterations, const double decayrate, const double growthrate, const bool verbose)
	constructor
double	computeTimeStepSize (const double dt, const int iterations, const RelativeChangeInterface &, const AdaptiveSimulatorTimer &) const override
	compute new time step size suggestions based on the PID controller
bool	timeStepAccepted (const double, const double) const override
	For the general 3rd order controller, the internal shifting of errors and time steps happens here, and hence this method needs to be called for (after) each time step.
template<class Serializer>
void	serializeOp (Serializer &serializer)
bool	operator== (const SimpleIterationCountTimeStepControl &) const
Public Member Functions inherited from Opm::TimeStepControlInterface
virtual	~TimeStepControlInterface ()
	virtual destructor (empty)

Static Public Member Functions
static SimpleIterationCountTimeStepControl	serializationTestObject ()

Static Public Attributes
static constexpr TimeStepControlType	Type = TimeStepControlType::SimpleIterationCount

Protected Attributes
const int	target_iterations_ = 0
const double	decayrate_ = 0.0
const double	growthrate_ = 0.0
const bool	verbose_ = false

Detailed Description

A simple iteration count based adaptive time step control.

Constructor & Destructor Documentation

◆ SimpleIterationCountTimeStepControl()

Opm::SimpleIterationCountTimeStepControl::SimpleIterationCountTimeStepControl	(	const int	target_iterations,
		const double	decayrate,
		const double	growthrate,
		const bool	verbose )

constructor

Parameters

target_iterations	number of desired iterations (e.g. Newton iterations) per time step in one time step
decayrate	decayrate of time step when target iterations are not met (should be <= 1)
growthrate	growthrate of time step when target iterations are not met (should be >= 1)
verbose	if true, get some output

Member Function Documentation

◆ computeTimeStepSize()

double Opm::SimpleIterationCountTimeStepControl::computeTimeStepSize	(	const double	dt,
		const int	iterations,
		const RelativeChangeInterface &	,
		const AdaptiveSimulatorTimer &	) const

overridevirtual

compute new time step size suggestions based on the PID controller

Parameters

dt	time step size used in the current step
iterations	number of iterations used (linear/nonlinear)
relativeChange	Relative change handler
substepTimer	Sub step timer

Returns: suggested time step size for the next step

Implements Opm::TimeStepControlInterface.

◆ timeStepAccepted()

bool Opm::SimpleIterationCountTimeStepControl::timeStepAccepted	(	const double	error,
		const double	timeStepJustCompleted ) const

inlineoverridevirtual

For the general 3rd order controller, the internal shifting of errors and time steps happens here, and hence this method needs to be called for (after) each time step.

Implements Opm::TimeStepControlInterface.

The documentation for this class was generated from the following files:

opm/simulators/timestepping/TimeStepControl.hpp
opm/simulators/timestepping/TimeStepControl.cpp

Public Member Functions

Static Public Member Functions