AggregateSolver Class Reference

#include <AggregateSolver.h>

Inheritance diagram for AggregateSolver:

Public Member Functions
	AggregateSolver (IScheduler &scheduler, const RunSettings &settings)
	~AggregateSolver ()
void	createAggregateData (Storage &storage, const AggregateEnum source)
virtual void	integrate (Storage &storage, Statistics &stats) override
	Computes derivatives of all time-dependent quantities. More...
virtual void	collide (Storage &storage, Statistics &stats, const Float dt) override
	Checks and resolves particle collisions. More...
virtual void	create (Storage &storage, IMaterial &material) const override
	Initializes all quantities needed by the solver in the storage. More...
Public Member Functions inherited from HardSphereSolver
	HardSphereSolver (IScheduler &scheduler, const RunSettings &settings)
	Creates the solver, using the gravity implementation specified by settings. More...
	HardSphereSolver (IScheduler &scheduler, const RunSettings &settings, AutoPtr< IGravity > &&gravity)
	Creates the solver by passing the user-defined gravity implementation. More...
	HardSphereSolver (IScheduler &scheduler, const RunSettings &settings, AutoPtr< IGravity > &&gravity, AutoPtr< ICollisionHandler > &&collisionHandler, AutoPtr< IOverlapHandler > &&overlapHandler)
	Creates the solver by specifying gravity and handlers for collision and overlaps. More...
	~HardSphereSolver () override
Public Member Functions inherited from ISolver
virtual void	collide (Storage &UNUSED(storage), Statistics &UNUSED(stats), const Float UNUSED(dt))
	Detects the collisions and computes new positions of particles. More...
Public Member Functions inherited from Polymorphic
virtual	~Polymorphic ()

Detailed Description

Definition at line 33 of file AggregateSolver.h.

Constructor & Destructor Documentation

AggregateSolver()

AggregateSolver::AggregateSolver	(	IScheduler &	scheduler,
		const RunSettings &	settings
	)

Definition at line 645 of file AggregateSolver.cpp.

~AggregateSolver()

AggregateSolver::~AggregateSolver ( )

default

Member Function Documentation

collide()

void AggregateSolver::collide ( Storage &  storage, Statistics &  stats, const Float  dt  )

overridevirtual

Checks and resolves particle collisions.

Todo:

We have to process the all collision in order, sorted according to collision time, but this is hardly parallelized. We can however process collisions concurrently, as long as the collided particles don't intersect the spheres with radius equal to the search radius. Note that this works as long as the search radius does not increase during collision handling.

Todo:

Reimplemented from HardSphereSolver.

Definition at line 669 of file AggregateSolver.cpp.

create()

void AggregateSolver::create ( Storage &  storage, IMaterial &  material  ) const

overridevirtual

Initializes all quantities needed by the solver in the storage.

When called, storage already contains particle positions and their masses. All remaining quantities must be created by the solver. The function is called once for every body in the run. The given storage is guaranteed to be homogeneous; it contains only a single material.

Parameters

storage	Particle storage that shall be modified as needed by the solver.
material	Material containing parameters of the body being created. The solver can also set up necessary timestepping parameters of the material (ranges and minimal values of quantities).

Reimplemented from HardSphereSolver.

Definition at line 675 of file AggregateSolver.cpp.

createAggregateData()

void AggregateSolver::createAggregateData	(	Storage &	storage,
		const AggregateEnum	source
	)

Definition at line 683 of file AggregateSolver.cpp.

integrate()

void AggregateSolver::integrate ( Storage &  storage, Statistics &  stats  )

overridevirtual

Computes derivatives of all time-dependent quantities.

The solver can also modify the quantities arbitrarily. It is however not recommended to perform the integration in the solver (using the time step stored in Statistics) as this is a job for timestepping. The solver can modify quantities using boundary conditions, inter-quantity relationships (such as the summation equation for density in SPH), clamping of values etc. It is also possible to add or remove particles in the storage and modify materials. Threads running concurrently with the solver must assume the solver can modify the storage at any time, so accessing the storage from different threads is only allowed before or after integrate; the is no locking for performance reasons.

All highest order derivatives are guaranteed to be set to zero when integrate is called (this is a responsibility of ITimeStepping implementation).

Parameters

storage	Storage containing all quantities.
stats	Object where the solver saves all computed statistics of the run.

Reimplemented from HardSphereSolver.

Definition at line 656 of file AggregateSolver.cpp.

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

• /home/pavel/projects/astro/sph/src/core/gravity/AggregateSolver.h
• /home/pavel/projects/astro/sph/src/core/gravity/AggregateSolver.cpp