Time-derivative interface for IMEX RK. More...

Inheritance diagram for Tempus::StepperIMEX_RKTimeDerivative< Scalar >:

Public Member Functions
	StepperIMEX_RKTimeDerivative (Scalar s, Teuchos::RCP< const Thyra::VectorBase< Scalar > > xTilde)
	Constructor. More...

virtual	~StepperIMEX_RKTimeDerivative ()
	Destructor. More...

virtual void	compute (Teuchos::RCP< const Thyra::VectorBase< Scalar > > x, Teuchos::RCP< Thyra::VectorBase< Scalar > > xDot, Teuchos::RCP< Thyra::VectorBase< Scalar > > xDotDot=Teuchos::null)
	Compute the time derivative. More...

virtual void	initialize (Scalar s, Teuchos::RCP< const Thyra::VectorBase< Scalar > > xTilde)

Private Attributes
Teuchos::RCP< const Thyra::VectorBase< Scalar > >	xTilde_

Scalar	s_

Detailed Description

Time-derivative interface for IMEX RK.

Given the stage state $X_i$ and

$\tilde{X} = x_{n-1} +\Delta t \sum_{j=1}^{i-1} a_{ij}\,\dot{X}_{j},$

compute the IMEX RK stage time-derivative,

$\dot{X}_i = \frac{X_{i} - \tilde{X}}{a_{ii} \Delta t}$

$\ddot{x}$ is not used and set to null.

Constructor & Destructor Documentation

template<typename Scalar >

Tempus::StepperIMEX_RKTimeDerivative< Scalar >::StepperIMEX_RKTimeDerivative	(	Scalar	s,
		Teuchos::RCP< const Thyra::VectorBase< Scalar > >	xTilde
	)

inline

Constructor.

template<typename Scalar >

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

inlinevirtual

Destructor.

template<typename Scalar >

virtual void Tempus::StepperIMEX_RKTimeDerivative< Scalar >::compute	(	Teuchos::RCP< const Thyra::VectorBase< Scalar > >	x,
		Teuchos::RCP< Thyra::VectorBase< Scalar > >	xDot,
		Teuchos::RCP< Thyra::VectorBase< Scalar > >	xDotDot = `Teuchos::null`
	)