gridripper::odesolver::relax::ODERelax Class Reference

Solution of ODEs with relaxation method. More...

#include <ODERelax.h>

List of all members.

Classes
class	Method
	Abstract class of relaxation method matrix initializers. More...
class	RelaxationException
	Relaxation error. More...
Public Member Functions
	ODERelax (const GrrProperties &props) throw (RelaxationException&)
	Constructs the ODE solver.
	ODERelax (const GrrProperties &props, int maxi) throw (RelaxationException&)
	Constructs the ODE solver.
	ODERelax (ODE *ode, tvalarray< GReal_t > &data, int order) throw (RelaxationException&)
	Constructs the ODE solver.
ODE &	getODE () const
	Gets the ODE.
int	getMaxI ()
	Gets the grid size.
string	getDataFormat ()
	Gets the output data format.
double	getRelativeError ()
	Gets the relative error of the solution after the final iteration.
int	getNumIterations ()
	Gets the number of iterations.
void	setNumIterations (int n)
	Sets the number of iterations.
void	solve (tvalarray< GReal_t > &sol) throw (RelaxationException&)
	Solves the system of equation.
double	nextIteration () throw (RelaxationException&)
	Performs the next iteration.

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Detailed Description

Solution of ODEs with relaxation method.

Version:

0.5, 06/22/2008

Since:

GridRipper 0.4, 09/17/2006

Author:

Peter Csizmadia

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Constructor & Destructor Documentation

gridripper::odesolver::relax::ODERelax::ODERelax

(

const GrrProperties &

props

)

throw (RelaxationException&)

Constructs the ODE solver.

Parameters:

props

properties

gridripper::odesolver::relax::ODERelax::ODERelax	(	const GrrProperties &	props,
		int	maxi
	)			throw (RelaxationException&)

Constructs the ODE solver.

Parameters:

	props	properties
	maxi	grid size (maximum grid point index)

gridripper::odesolver::relax::ODERelax::ODERelax	(	ODE *	ode,
		tvalarray< GReal_t > &	data,
		int	order
	)			throw (RelaxationException&)

Constructs the ODE solver.

Parameters:

	ode	the ODE
	data	the field values
	order	discretization order (2 or 4)

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Member Function Documentation

string gridripper::odesolver::relax::ODERelax::getDataFormat

(

)

[inline]

Gets the output data format.

Returns:

the format string

int gridripper::odesolver::relax::ODERelax::getMaxI

(

)

[inline]

Gets the grid size.

Returns:

the number of points minus 1.

int gridripper::odesolver::relax::ODERelax::getNumIterations

(

)

[inline]

Gets the number of iterations.

Returns:

the number of iterations

ODE& gridripper::odesolver::relax::ODERelax::getODE

(

)

const [inline]

Gets the ODE.

Returns:

the ODE

double gridripper::odesolver::relax::ODERelax::getRelativeError

(

)

[inline]

Gets the relative error of the solution after the final iteration.

Returns:

the relative error

double gridripper::odesolver::relax::ODERelax::nextIteration

(

)

throw (RelaxationException&)

Performs the next iteration.

Called by solve.

Returns:

the relative error

void gridripper::odesolver::relax::ODERelax::setNumIterations

(

int

n

)

[inline]

Sets the number of iterations.

Parameters:

n

number of iterations or -1 to stop only when the relative error cannot be decreased further

void gridripper::odesolver::relax::ODERelax::solve

(

tvalarray< GReal_t > &

sol

)

throw (RelaxationException&)

Solves the system of equation.

Parameters:

sol

output vector for the solution

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

• /home/laszloa/SVN/GR/gridripper/include/gridripper/odesolver/relax/ODERelax.h