GpuParticleData Class Reference

Particle data communication manager for the GPU. More...

#include <GpuParticleData.hpp>

Inheritance diagram for GpuParticleData:

Collaboration diagram for GpuParticleData:

Classes
struct	GpuEnergy
	Energies that are retrieved from the GPU. More...
struct	GpuParticle
	Subset of Particle which is copied to the GPU. More...
struct	prop
	Particle properties that need to be communicated to the GPU. More...
class	Storage
	Host and device containers for particle data. More...

Public Member Functions
	GpuParticleData ()=default
	~GpuParticleData ()=default
void	update ()
void	initialize ()
void	enable_property (std::size_t property)
void	clear_energy_on_device ()
void	copy_forces_to_host (ParticleRange const &particles, int this_node)
std::size_t	n_particles () const
bool	has_compatible_device () const
GpuEnergy	copy_energy_to_host () const
GpuEnergy *	get_energy_device () const
float *	get_particle_positions_device () const
float *	get_particle_forces_device () const
float *	get_particle_torques_device () const
float *	get_particle_dipoles_device () const
float *	get_particle_charges_device () const
Public Member Functions inherited from System::Leaf< GpuParticleData >
void	bind_system (std::shared_ptr< System > const &system)
void	detach_system (std::shared_ptr< System > const &system)

Additional Inherited Members
Protected Member Functions inherited from System::Leaf< GpuParticleData >
auto &	get_system ()
auto &	get_system () const
Protected Attributes inherited from System::Leaf< GpuParticleData >
std::weak_ptr< System >	m_system

Detailed Description

Particle data communication manager for the GPU.

When data is synchronized between host and device memory, a subset of the Particle struct is copied from each particle on the host to the corresponding GpuParticle struct on the device via GpuParticleData::update(). Once the transfer is complete, the particle AoS on the device is copied (or "split") to a SoA automatically.

Note that once a particle member is requested, the corresponding device memory is allocated and populated at every time step, even when the GPU method that originally requested the data is disabled.

Definition at line 51 of file GpuParticleData.hpp.

Constructor & Destructor Documentation

GpuParticleData()

GpuParticleData::GpuParticleData ( )

default

~GpuParticleData()

GpuParticleData::~GpuParticleData ( )

default

Member Function Documentation

clear_energy_on_device()

void GpuParticleData::clear_energy_on_device

(

)

Definition at line 281 of file GpuParticleData_cuda.cu.

References cuda_safe_mem.

copy_energy_to_host()

GpuParticleData::GpuEnergy GpuParticleData::copy_energy_to_host

(

)

const

Definition at line 290 of file GpuParticleData_cuda.cu.

References cuda_safe_mem.

copy_forces_to_host()

void GpuParticleData::copy_forces_to_host	(	ParticleRange const &	particles,
		int	this_node
	)

Definition at line 258 of file GpuParticleData_cuda.cu.

References this_node.

enable_property()

void GpuParticleData::enable_property

(

std::size_t

property

)

Definition at line 189 of file GpuParticleData_cuda.cu.

References GpuParticleData::prop::force, and GpuParticleData::prop::torque.

Referenced by CoulombP3MImpl< FloatType, Architecture >::request_gpu().

get_energy_device()

GpuParticleData::GpuEnergy * GpuParticleData::get_energy_device

(

)

const

Definition at line 185 of file GpuParticleData_cuda.cu.

get_particle_charges_device()

float * GpuParticleData::get_particle_charges_device

(

)

const

Definition at line 180 of file GpuParticleData_cuda.cu.

Referenced by p3m_gpu_add_farfield_force().

get_particle_dipoles_device()

float * GpuParticleData::get_particle_dipoles_device

(

)

const

Definition at line 174 of file GpuParticleData_cuda.cu.

get_particle_forces_device()

float * GpuParticleData::get_particle_forces_device

(

)

const

Definition at line 163 of file GpuParticleData_cuda.cu.

References raw_data_pointer().

Referenced by p3m_gpu_add_farfield_force().

get_particle_positions_device()

float * GpuParticleData::get_particle_positions_device

(

)

const

Definition at line 159 of file GpuParticleData_cuda.cu.

Referenced by p3m_gpu_add_farfield_force().

get_particle_torques_device()

float * GpuParticleData::get_particle_torques_device

(

)

const

Definition at line 168 of file GpuParticleData_cuda.cu.

References raw_data_pointer().

has_compatible_device()

bool GpuParticleData::has_compatible_device

(

)

const

Definition at line 57 of file GpuParticleData.cpp.

References comm_cart, and this_node.

initialize()

void GpuParticleData::initialize

(

)

Definition at line 151 of file GpuParticleData_cuda.cu.

References System::Leaf< GpuParticleData >::get_system(), and GpuParticleData::Storage::make_shared().

n_particles()

std::size_t GpuParticleData::n_particles

(

)

const

Definition at line 155 of file GpuParticleData_cuda.cu.

update()

void GpuParticleData::update ( )

inline

Definition at line 109 of file GpuParticleData.hpp.

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

• GpuParticleData.hpp
• GpuParticleData.cpp
• GpuParticleData_cuda.cu