Class for Cells of Particles. More...

#include <ParticleCell.h>

Inheritance diagram for autopas::ParticleCell< Particle_T >:

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Collaboration diagram for autopas::ParticleCell< Particle_T >:

Public Types
using	ParticleType = Particle_T
	The particle type for this cell.

Public Member Functions
virtual	~ParticleCell ()=default
	Default destructor.

	ParticleCell ()=default
	Default default constructor.

	ParticleCell (ParticleCell &&other) noexcept=default
	Default move constructor.

	ParticleCell (const ParticleCell &other)
	Copy constructor that creates a new default constructed lock for the new cell.

virtual void	addParticle (const Particle_T &p)=0
	Adds a Particle to the cell.

virtual size_t	size () const =0
	Get the number of all particles stored in this cell (owned, halo and dummy).

virtual size_t	getNumberOfParticles (IteratorBehavior behavior=IteratorBehavior::owned) const =0
	Get the number of particles with respect to the specified IteratorBehavior.

virtual bool	isEmpty () const =0
	Check if the cell is empty.

virtual void	clear ()=0
	Deletes all particles in this cell.

virtual void	deleteDummyParticles ()=0
	Deletes all dummy particles in this cell.

virtual CellType	getParticleCellTypeAsEnum ()=0
	Get the ParticleCell type as an ParticleCellTypeEnum.

virtual void	deleteByIndex (size_t index)=0
	Deletes the index-th particle.

virtual void	setCellLength (std::array< double, 3 > &cellLength)=0
	Set the side lengths of this cell.

virtual std::array< double, 3 >	getCellLength () const =0
	Get the side lengths of this cell.

OwnershipState	getPossibleParticleOwnerships () const
	Get the type of particles contained in this cell.

void	setPossibleParticleOwnerships (OwnershipState state)
	Set the type of particles contained in this cell.

AutoPasLock &	getCellLock () const
	Get a reference to the lock object for exclusive access to this cell.

Protected Attributes
AutoPasLock	_cellLock {}
	Lock object for exclusive access to this cell.

OwnershipState	_ownershipState {autopas::OwnershipState::owned \| autopas::OwnershipState::halo}
	The particles which can be contained in this cell are determined by the OwnershipState.

bool	_ownershipStateDefined {false}
	Flag that is set to true once OwnershipState has been set to avoid resetting the OwnershipState.

Detailed Description

template<class Particle_T>
class autopas::ParticleCell< Particle_T >

Class for Cells of Particles.

The class handles to storage particles and provides an interface to add the particles

Template Parameters

Particle_T the type of particles to be stored in the cells

Member Typedef Documentation

◆ ParticleType

template<class Particle_T >

using autopas::ParticleCell< Particle_T >::ParticleType = Particle_T

The particle type for this cell.

Used to refer to the Particle_T typename for an instantiation of ParticleCell.

Constructor & Destructor Documentation

◆ ParticleCell() [1/2]

template<class Particle_T >

autopas::ParticleCell< Particle_T >::ParticleCell ( ParticleCell< Particle_T > && other )

defaultnoexcept

Default move constructor.

Parameters

other

◆ ParticleCell() [2/2]

template<class Particle_T >

autopas::ParticleCell< Particle_T >::ParticleCell ( const ParticleCell< Particle_T > & other )

inline

Copy constructor that creates a new default constructed lock for the new cell.

Parameters

other

Member Function Documentation

◆ addParticle()

template<class Particle_T >

virtual void autopas::ParticleCell< Particle_T >::addParticle ( const Particle_T & p )

pure virtual

Adds a Particle to the cell.

Parameters

p	the particle to be added

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::SortedCellView< ParticleCellType >.

◆ clear()

template<class Particle_T >

virtual void autopas::ParticleCell< Particle_T >::clear ( )

pure virtual

Deletes all particles in this cell.

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ deleteByIndex()

template<class Particle_T >

virtual void autopas::ParticleCell< Particle_T >::deleteByIndex ( size_t index )

pure virtual

Deletes the index-th particle.

Parameters

index the index of the particle that shall be deleted

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ deleteDummyParticles()

template<class Particle_T >

virtual void autopas::ParticleCell< Particle_T >::deleteDummyParticles ( )

pure virtual

Deletes all dummy particles in this cell.

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ getCellLength()

template<class Particle_T >

virtual std::array< double, 3 > autopas::ParticleCell< Particle_T >::getCellLength ( ) const

pure virtual

Get the side lengths of this cell.

Returns: cell side length

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ getCellLock()

template<class Particle_T >

AutoPasLock & autopas::ParticleCell< Particle_T >::getCellLock ( ) const

inline

Get a reference to the lock object for exclusive access to this cell.

Returns: reference to the cell lock

◆ getNumberOfParticles()

template<class Particle_T >

virtual size_t autopas::ParticleCell< Particle_T >::getNumberOfParticles ( IteratorBehavior behavior = IteratorBehavior::owned ) const

pure virtual

Get the number of particles with respect to the specified IteratorBehavior.

Warning: : Since this function counts the number of the respective particles in the internal particle storage, this is in O(n) + lock is required. Only use it when it is absolutely necessary to have the exact number of different particle types like owned or halo. If it is enough to have the whole number of particles (owned + halo + dummy), the function size() can be used.

Parameters

behavior Behavior of the iterator, see IteratorBehavior.

Returns: The number of particles with respect to the specified IteratorBehavior.

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeLeafNode< Particle_T >, and autopas::OctreeNodeWrapper< Particle_T >.

◆ getParticleCellTypeAsEnum()

template<class Particle_T >

virtual CellType autopas::ParticleCell< Particle_T >::getParticleCellTypeAsEnum ( )

pure virtual

Get the ParticleCell type as an ParticleCellTypeEnum.

Returns: The Cell type as an Enum

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ getPossibleParticleOwnerships()

template<class Particle_T >

OwnershipState autopas::ParticleCell< Particle_T >::getPossibleParticleOwnerships ( ) const

inline

Get the type of particles contained in this cell.

Possible values: dummy: this cell is empty owned: this cell can ONLY contain owned particles halo: this cell can ONLY contain halo particles ownedOrHalo: this cell can contain owned or halo particles

Returns: type of particles inside this cell

◆ isEmpty()

template<class Particle_T >

virtual bool autopas::ParticleCell< Particle_T >::isEmpty ( ) const

pure virtual

Check if the cell is empty.

Returns: true if no particles are stored in this cell.

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

◆ setCellLength()

template<class Particle_T >

virtual void autopas::ParticleCell< Particle_T >::setCellLength ( std::array< double, 3 > & cellLength )

pure virtual

Set the side lengths of this cell.

Parameters

cellLength cell side length

Implemented in autopas::internal::ClusterTower< Particle_T >, autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, and autopas::OctreeNodeWrapper< Particle_T >.

◆ setPossibleParticleOwnerships()

template<class Particle_T >

void autopas::ParticleCell< Particle_T >::setPossibleParticleOwnerships ( OwnershipState state )

inline

Set the type of particles contained in this cell.

Possible values: dummy: this cell is empty owned: this cell can ONLY contain owned particles halo: this cell can ONLY contain halo particles ownedOrHalo: this cell can contain owned or halo particles

Note: : At the moment an ownership of a cell can only be set once.

Parameters

state type of particles inside this cell

◆ size()

template<class Particle_T >

virtual size_t autopas::ParticleCell< Particle_T >::size ( ) const

pure virtual

Get the number of all particles stored in this cell (owned, halo and dummy).

Returns: number of particles stored in this cell (owned, halo and dummy).

Implemented in autopas::FullParticleCell< Particle_T >, autopas::ReferenceParticleCell< Particle_T >, autopas::SortedCellView< ParticleCellType >, autopas::OctreeLeafNode< Particle_T >, autopas::OctreeNodeWrapper< Particle_T >, and autopas::internal::ClusterTower< Particle_T >.

Member Data Documentation

◆ _cellLock

template<class Particle_T >

AutoPasLock autopas::ParticleCell< Particle_T >::_cellLock {}

mutableprotected

Lock object for exclusive access to this cell.

This lock has to be mutable since it is set in getNumberOfParticles() const.

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

autopas/cells/ParticleCell.h

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ ParticleType

Constructor & Destructor Documentation

◆ ParticleCell() [1/2]

◆ ParticleCell() [2/2]

Member Function Documentation

◆ addParticle()

◆ clear()

◆ deleteByIndex()

◆ deleteDummyParticles()

◆ getCellLength()

◆ getCellLock()

◆ getNumberOfParticles()

◆ getParticleCellTypeAsEnum()

◆ getPossibleParticleOwnerships()

◆ isEmpty()

◆ setCellLength()

◆ setPossibleParticleOwnerships()

◆ size()

Member Data Documentation

◆ _cellLock