SG++-Doxygen-Documentation
sgpp::solver::StepsizeControlEJ Class Reference

This class implements a time step size control using 1D-Diffusion for solving ordinary partial equations. More...

#include <StepsizeControlEJ.hpp>

Inheritance diagram for sgpp::solver::StepsizeControlEJ:
sgpp::solver::StepsizeControl sgpp::solver::ODESolver sgpp::solver::SGSolver

Public Member Functions

 StepsizeControlEJ (std::string odesolver, size_t nTimesteps, double timestepSize, double eps, double sc, sgpp::base::ScreenOutput *screen=NULL, double gamma=0.5)
 Std-Constructer. More...
 
virtual ~StepsizeControlEJ ()
 Std-Destructor. More...
 
- Public Member Functions inherited from sgpp::solver::StepsizeControl
void solve (SLESolver &LinearSystemSolver, sgpp::solver::OperationParabolicPDESolverSystem &System, bool bIdentifyLastStep=false, bool verbose=false)
 Pure virtual Function that defines a solve method for an ODE solver. More...
 
 StepsizeControl (size_t imax, double timestepSize, double eps, double sc, sgpp::base::ScreenOutput *screen=NULL, double gamma=0.5)
 Std-Constructer. More...
 
virtual ~StepsizeControl ()
 Std-Destructor. More...
 
- Public Member Functions inherited from sgpp::solver::ODESolver
 ODESolver (size_t imax, double timestepSize)
 Std-Constructor. More...
 
virtual ~ODESolver ()
 Std-Destructor. More...
 
- Public Member Functions inherited from sgpp::solver::SGSolver
double getEpsilon ()
 gets the the epsilon, that is used in the SGSolver More...
 
size_t getNumberIterations ()
 function that returns the number of needed solve steps More...
 
double getResiduum ()
 function the returns the residuum (current or final), error of the solver More...
 
void setEpsilon (double eps)
 resets the epsilon, that is used in the SGSolver More...
 
void setMaxIterations (size_t nIterations)
 resets the number of maximum iterations More...
 
 SGSolver (size_t nMaximumIterations, double epsilon)
 Std-Constructor. More...
 
virtual ~SGSolver ()
 Std-Destructor. More...
 

Additional Inherited Members

- Protected Member Functions inherited from sgpp::solver::StepsizeControl
double maxNorm (sgpp::solver::OperationParabolicPDESolverSystem &System, sgpp::base::DataVector &dv1, sgpp::base::DataVector &dv2)
 
double twoNorm (sgpp::solver::OperationParabolicPDESolverSystem &System, sgpp::base::DataVector &dv1, sgpp::base::DataVector &dv2)
 
- Protected Attributes inherited from sgpp::solver::StepsizeControl
double _gamma
 damping factor More...
 
std::string filename
 
double myEps
 epsilon for the step size control More...
 
double mySC
 temp. Stepsize Control More...
 
sgpp::base::ScreenOutputmyScreen
 Pointer to sgpp::base::ScreenOutput object. More...
 
- Protected Attributes inherited from sgpp::solver::SGSolver
double myEpsilon
 epsilon needed in the, e.g. final error in the iterative solver, or a timestep More...
 
size_t nIterations
 Number of Iterations needed for the solve. More...
 
size_t nMaxIterations
 Number of maximum iterations for cg. More...
 
double residuum
 residuum More...
 

Detailed Description

This class implements a time step size control using 1D-Diffusion for solving ordinary partial equations.

For solving the system of linear equations the already implemented CG-method is used

Constructor & Destructor Documentation

◆ StepsizeControlEJ()

sgpp::solver::StepsizeControlEJ::StepsizeControlEJ ( std::string  odesolver,
size_t  nTimesteps,
double  timestepSize,
double  eps,
double  sc,
sgpp::base::ScreenOutput screen = NULL,
double  gamma = 0.5 
)

Std-Constructer.

Parameters
odesolverthe selected ode solver
nTimestepsnumber of maximum executed iterations
timestepSizethe size of one timestep
epsthe epsilon for the stepsize control
sc
screenpossible pointer to a sgpp::base::ScreenOutput object
gammaused damping factor, default is 0.5

References sgpp::solver::StepsizeControl::filename, sgpp::solver::StepsizeControl::myEps, and sgpp::solver::StepsizeControl::mySC.

◆ ~StepsizeControlEJ()


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