StepControlStrategy class for TimeStepControl. More...

#include <Tempus_TimeStepControlStrategyIntegralController.hpp>

Inheritance diagram for Tempus::TimeStepControlStrategyIntegralController< Scalar >:

Public Member Functions
	TimeStepControlStrategyIntegralController (Teuchos::RCP< Teuchos::ParameterList > pList=Teuchos::null)
	Constructor. More...

virtual	~TimeStepControlStrategyIntegralController ()
	Destructor. More...

virtual void	getNextTimeStep (const TimeStepControl< Scalar > tsc, Teuchos::RCP< SolutionHistory< Scalar > > solutionHistory, Status &) override
	Determine the time step size. More...

Overridden from Teuchos::ParameterListAcceptor
void	setParameterList (const Teuchos::RCP< Teuchos::ParameterList > &pList) override

Teuchos::RCP< const Teuchos::ParameterList >	getValidParameters () const override

Teuchos::RCP < Teuchos::ParameterList >	getNonconstParameterList () override

Teuchos::RCP < Teuchos::ParameterList >	unsetParameterList () override

Public Member Functions inherited from Tempus::TimeStepControlStrategy< Scalar >
	TimeStepControlStrategy ()
	Constructor. More...

virtual	~TimeStepControlStrategy ()
	Destructor. More...

void	setParameterList (const Teuchos::RCP< Teuchos::ParameterList > &)

Teuchos::RCP< const Teuchos::ParameterList >	getValidParameters () const

Teuchos::RCP < Teuchos::ParameterList >	getNonconstParameterList ()

Teuchos::RCP < Teuchos::ParameterList >	unsetParameterList ()

Private Attributes
Teuchos::RCP < Teuchos::ParameterList >	tscsPL_

Scalar	k1_

Scalar	k2_

Scalar	k3_

Scalar	errN_

Scalar	errNm1_

Scalar	errNm2_

Scalar	safetyFactor_

Scalar	facMax_

Scalar	facMin_

bool	firstSuccessfulStep_ = false

bool	lastStepRejected_ = false

std::string	controller_

Detailed Description

template<class Scalar>
class Tempus::TimeStepControlStrategyIntegralController< Scalar >

StepControlStrategy class for TimeStepControl.

Gustaf Soderlind. Automatic control and adaptive time-stepping. Numerical Algorithms, 31(1):281–310, Dec 2002.

The step size is chosen based on "Controller Type":

PID = Proportional-Integral-Derivative Controller

$(\Delta t)_{n+1} = (\Delta t)_n \left( \epsilon_n ^{-k_1 / p} \epsilon_{n-1}^{k_2 / p} \epsilon_{n-2}^{-k_3 / p} \right)$

PI = Proportional-Integral Controller

$(\Delta t)_{n+1} = (\Delta t)_n \left( \epsilon_n ^{-k_1 / p} \epsilon_{n-1}^{k_2 / p} \right)$

I = Integral Controller

$(\Delta t)_{n+1} = (\Delta t)_n \left( \epsilon_n ^{-k_1 / p} \right)$

where $\epsilon_n$ is the error at time step $n$ .

Appropriate for Explicit Methods

Definition at line 54 of file Tempus_TimeStepControlStrategyIntegralController.hpp.

Constructor & Destructor Documentation

template<class Scalar >

Tempus::TimeStepControlStrategyIntegralController< Scalar >::TimeStepControlStrategyIntegralController ( Teuchos::RCP< Teuchos::ParameterList > pList = Teuchos::null )

inline

Constructor.

Definition at line 60 of file Tempus_TimeStepControlStrategyIntegralController.hpp.

template<class Scalar >

virtual Tempus::TimeStepControlStrategyIntegralController< Scalar >::~TimeStepControlStrategyIntegralController ( )

inlinevirtual

Destructor.

Definition at line 65 of file Tempus_TimeStepControlStrategyIntegralController.hpp.

Member Function Documentation

template<class Scalar >

virtual void Tempus::TimeStepControlStrategyIntegralController< Scalar >::getNextTimeStep	(	const TimeStepControl< Scalar >	tsc,
		Teuchos::RCP< SolutionHistory< Scalar > >	solutionHistory,
		Status &
	)