hyperdeal::LowStorageRungeKuttaIntegrator< Number, VectorType > Class Template Reference

#include <time_integrators.h>

Public Member Functions
	LowStorageRungeKuttaIntegrator (VectorType &vec_Ki, VectorType &vec_Ti, const std::string type, const bool only_Ti_is_ghosted=true)
void	perform_time_step (VectorType &solution, const Number &current_time, const Number &time_step, const std::function< void(const VectorType &, VectorType &, const Number)> &op)
unsigned int	n_stages () const

Detailed Description

template<typename Number, typename VectorType>
class hyperdeal::LowStorageRungeKuttaIntegrator< Number, VectorType >

Efficient specialized low-storage Runge-Kutta implementations.

We provide an implementation, which only needs one vector (vec_Ti) to be ghosted. This is in particular useful in high-dimensions, where memory is scarce.

Note

For details on the basic low-storage implementation, see step-69 in deal.II.

Constructor & Destructor Documentation

LowStorageRungeKuttaIntegrator()

template<typename Number , typename VectorType >

hyperdeal::LowStorageRungeKuttaIntegrator< Number, VectorType >::LowStorageRungeKuttaIntegrator	(	VectorType &	vec_Ki,
		VectorType &	vec_Ti,
		const std::string	type,
		const bool	only_Ti_is_ghosted = true )

Constructor. The user provides from outside two register vectors vec_Ki and vev_Ti.

Note

Currently rk33, rk45, rk47, rk59 (order, stages) are supported.

Member Function Documentation

perform_time_step()

template<typename Number , typename VectorType >

void hyperdeal::LowStorageRungeKuttaIntegrator< Number, VectorType >::perform_time_step	(	VectorType &	solution,
		const Number &	current_time,
		const Number &	time_step,
		const std::function< void(const VectorType &, VectorType &, const Number)> &	op )

Perform time step: evaluate right-hand side provided by op at a specified time current_time and with a given time_step. The previous solution is provided by solution and the new solution is written into the same vector.

---

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

• include/hyper.deal/base/time_integrators.h
• include/hyper.deal/base/time_integrators.templates.h