CPU implementation of PEC2 Hermite integrator. More...

Inheritance diagram for swarm::cpu::hermite_cpu< Monitor >:

Public Member Functions
	hermite_cpu (const config &cfg)
	Construct for hermite_cpu class.

virtual void	launch_integrator ()
	Integrater implementation provided by derived instance.

void	calcForces (ensemble::SystemRef &sys, double acc[][3], double jerk[][3])
	Calculate the force field. More...

void	integrate_system (ensemble::SystemRef sys)
	Integrate ensembles. More...

Public Member Functions inherited from swarm::integrator
	integrator (const config &cfg)
	Inetgrator class should be configurable. Derived instances should also have a constructor with similar signature and pass on the config parameter.

virtual void	integrate ()
	Interfaces function to integrate, for use by general user. More...

virtual void	flush_log ()
	Flush the host log.

virtual defaultEnsemble &	get_ensemble ()
	Access the ensemble subject to integration.

virtual void	set_ensemble (defaultEnsemble &ens)
	Set the ensemble subject to integration.

virtual void	set_destination_time (const double &destination_time)
	Set the time marker to end the integration.

virtual void	set_log_manager (log::Pmanager &l)
	accessor function to set the manager for log output

Static Public Member Functions
static double	inner_product (const double a[3], const double b[3])
	defines inner product of two arrays

Static Public Member Functions inherited from swarm::integrator
static shared_ptr< integrator >	create (const config &cfg)
	Loads an integrator using the plugin system. More...

Additional Inherited Members
Static Public Attributes inherited from swarm::integrator
static const int	_default_max_iterations = 10000000
	Default value for maximum number of iterations. c.f. _max_iterations.

static const int	_default_max_attempts = 1000000
	Default value for maximum number of attempts. c.f. _max_attempts.

Protected Attributes inherited from swarm::integrator
defaultEnsemble	_ens
	ensemble to be integrated

double	_destination_time
	the timestamp at which the integration should finish

log::Pmanager	_logman
	log manager for log output, set to manager::default() by default

gpulog::host_log *	_log
	log object, obtained from log manager

int	_max_iterations
	Maximum number of iterations per each integration step. c.f. integrate for usage.

int	_max_attempts
	Maximum number of attempts to complete the integration. c.f. integrate for usage.

Detailed Description

CPU implementation of PEC2 Hermite integrator.

This is used as a reference implementation to test other GPU implementations of other integrators

This integrator can be used as an example of CPU integrator

Definition at line 46 of file hermite_cpu.hpp.

Member Function Documentation

template<class Monitor >

void swarm::cpu::hermite_cpu< Monitor >::calcForces	(	ensemble::SystemRef &	sys,
		double	acc[][3],
		double	jerk[][3]
	)

inline

Calculate the force field.

Clear acc and jerk

Loop through all pairs

Calculated the magnitude

Update acc/jerk for i

Update acc/jerk for j

Definition at line 74 of file hermite_cpu.hpp.

template<class Monitor >

void swarm::cpu::hermite_cpu< Monitor >::integrate_system ( ensemble::SystemRef sys)

inline

Integrate ensembles.

Predict

Copy positions

Integrate, Round one

Integrate, Round two

Definition at line 115 of file hermite_cpu.hpp.

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