Abstract strategy class for the class Timestepping. More...

#include <strategy.hh>

Inheritance diagram for timestepping::TimeStepStrategy:

Collaboration diagram for timestepping::TimeStepStrategy:

Public Member Functions
	TimeStepStrategy (concepts::SolverFabric< Real > &fabric, concepts::Operator< Real > *lhs, const concepts::Vector< Real > &sol, const concepts::Vector< Real > &rhs, Real dt)
	Constructor.
Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
virtual void	next ()=0
	The overloaded member function next() has to calculate the new right hand side and to release the solution vector.
Protected Attributes
Real	dt_
	Time step size.
concepts::Operator< Real > *	liCo_
	Operator of the linear equation system which is solved by the friend class TimeStepping.
concepts::Vector< Real >	rhs_
	The right hand side vector of the linear equation system which is solved by the friend class TimeStepping.
concepts::Vector< Real >	sol_
	The solution vector of the linear equation system which is solved by the friend class TimeStepping.
std::auto_ptr < concepts::Operator< Real > >	solver_
	Solver for the linear system.
Real	t_
	Time of the actual solution.
Friends
class	TimeStepping

Detailed Description

Abstract strategy class for the class Timestepping.

The task of a derivated strategy class is to implement the specific calculation of the right and left hand side of the equation

$( D + const.(\Delta t) D') Y_n = V(Y_{n-1}, Y_{n-2}, ...),$

The initial conditions are given at time 0.

See also:: TimeStepping

Author:: Manuel Walser, 2002

Definition at line 29 of file strategy.hh.

Constructor & Destructor Documentation

timestepping::TimeStepStrategy::TimeStepStrategy	(	concepts::SolverFabric< Real > &	fabric,
		concepts::Operator< Real > *	lhs,
		const concepts::Vector< Real > &	sol,
		const concepts::Vector< Real > &	rhs,
		Real	dt
	)		`[inline]`

Constructor.

Parameters:

lhs	Operator on the lhs
sol	Solution vector
rhs	laod vector

Definition at line 36 of file strategy.hh.

Member Function Documentation

virtual std::ostream& concepts::OutputOperator::info ( std::ostream & os ) const [protected, virtual, inherited]

Returns information in an output stream.

virtual void timestepping::TimeStepStrategy::next ( ) [protected, pure virtual]

The overloaded member function next() has to calculate the new right hand side and to release the solution vector.

Then the Timestepping solver can set the new solution.

Implemented in timestepping::Alpha, timestepping::Euler, timestepping::LimitingEuler, timestepping::Newmark, timestepping::Nystroem, timestepping::RungeKutta2, timestepping::RungeKutta4, timestepping::Theta, timestepping::TvdRK2, and timestepping::LimitingTvdRK2.

Friends And Related Function Documentation

friend class TimeStepping [friend]

Definition at line 48 of file strategy.hh.

Member Data Documentation

Real timestepping::TimeStepStrategy::dt_ [protected]

Time step size.

Definition at line 73 of file strategy.hh.

concepts::Operator<Real>* timestepping::TimeStepStrategy::liCo_ [protected]

Operator of the linear equation system which is solved by the friend class TimeStepping.

It can be stored as a linear combination of two operators. The exact form depends on the specific scheme.

See also:: TimeStepping

Definition at line 61 of file strategy.hh.

concepts::Vector<Real> timestepping::TimeStepStrategy::rhs_ [protected]

The right hand side vector of the linear equation system which is solved by the friend class TimeStepping.

See also:: TimeStepping

Definition at line 71 of file strategy.hh.

concepts::Vector<Real> timestepping::TimeStepStrategy::sol_ [protected]

The solution vector of the linear equation system which is solved by the friend class TimeStepping.

See also:: TimeStepping

Definition at line 66 of file strategy.hh.

std::auto_ptr<concepts::Operator<Real> > timestepping::TimeStepStrategy::solver_ [protected]

Solver for the linear system.

Definition at line 55 of file strategy.hh.

Real timestepping::TimeStepStrategy::t_ [protected]

Time of the actual solution.

Definition at line 75 of file strategy.hh.

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

timestepping/strategy.hh

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation