TNL::Pointers::DevicePointer< Object, Devices::Cuda > Class Template Reference

Specialization of the DevicePointer for the CUDA device. More...

#include <TNL/Pointers/DevicePointer.h>

Inheritance diagram for TNL::Pointers::DevicePointer< Object, Devices::Cuda >:

Collaboration diagram for TNL::Pointers::DevicePointer< Object, Devices::Cuda >:

Classes
struct	PointerData

Public Types
using	AllocatorType = typename Allocators::Default< DeviceType >::Allocator< ObjectType >
	Type of the allocator for DeviceType.
using	DeviceType = Devices::Cuda
	Type of the device where the object is to be mirrored.
using	ObjectType = Object
	Type of the object owned by the pointer.

Public Member Functions
	DevicePointer (const DevicePointer &pointer)
	Copy constructor.
template<typename Object_ , typename = Enabler< Object_ >>
	DevicePointer (const DevicePointer< Object_, DeviceType > &pointer)
	Copy constructor.
	DevicePointer (DevicePointer &&pointer) noexcept
	Move constructor.
template<typename Object_ , typename = Enabler< Object_ >>
	DevicePointer (DevicePointer< Object_, DeviceType > &&pointer)
	Move constructor.
	DevicePointer (ObjectType &obj)
	Constructor with an object reference.
	DevicePointer (std::nullptr_t)
	Constructor of empty pointer.
	~DevicePointer () override
	Destructor.
template<typename Device = Devices::Host>
__cuda_callable__ const Object &	getData () const
	Constant object reference getter.
template<typename Device = Devices::Host>
__cuda_callable__ Object &	modifyData ()
	Non-constant object reference getter.
__cuda_callable__	operator bool () const
	Conversion to boolean type.
__cuda_callable__ bool	operator! () const
	Negation operator.
__cuda_callable__ Object &	operator* ()
	Dereferencing operator for accessing the object owned by non-constant smart pointer.
__cuda_callable__ const Object &	operator* () const
	Dereferencing operator for accessing the object owned by constant smart pointer.
__cuda_callable__ Object *	operator-> ()
	Arrow operator for accessing the object owned by non-constant smart pointer.
__cuda_callable__ const Object *	operator-> () const
	Arrow operator for accessing the object owned by constant smart pointer.
const DevicePointer &	operator= (const DevicePointer &ptr)
	Assignment operator.
template<typename Object_ , typename = Enabler< Object_ >>
const DevicePointer &	operator= (const DevicePointer< Object_, DeviceType > &ptr)
	Assignment operator for compatible object types.
const DevicePointer &	operator= (DevicePointer &&ptr) noexcept
	Move operator.
template<typename Object_ , typename = Enabler< Object_ >>
const DevicePointer &	operator= (DevicePointer< Object_, DeviceType > &&ptr)
	Move operator.
void	swap (DevicePointer &ptr2)
	Swap the owned object with another pointer.
bool	synchronize () override
	Cross-device pointer synchronization.
Public Member Functions inherited from TNL::Pointers::SmartPointer

Protected Member Functions
bool	allocate (ObjectType &obj)
void	free ()
bool	modified ()
void	set_last_sync_state ()

Protected Attributes
Object *	cuda_pointer
PointerData *	pd
Object *	pointer

Detailed Description

template<typename Object>
class TNL::Pointers::DevicePointer< Object, Devices::Cuda >

Specialization of the DevicePointer for the CUDA device.

Template Parameters

Object

is a type of object to be owned by the pointer.

Constructor & Destructor Documentation

DevicePointer() [1/5]

template<typename Object >

TNL::Pointers::DevicePointer< Object, Devices::Cuda >::DevicePointer ( ObjectType & obj )

inlineexplicit

Constructor with an object reference.

Parameters

obj	is a reference on an object to be managed by the pointer.

DevicePointer() [2/5]

template<typename Object >

TNL::Pointers::DevicePointer< Object, Devices::Cuda >::DevicePointer ( const DevicePointer< Object, Devices::Cuda > & pointer )

inline

Copy constructor.

Parameters

pointer

is the source device pointer.

DevicePointer() [3/5]

template<typename Object >

template<typename Object_ , typename = Enabler< Object_ >>

TNL::Pointers::DevicePointer< Object, Devices::Cuda >::DevicePointer ( const DevicePointer< Object_, DeviceType > & pointer )

inline

Copy constructor.

This is specialization for compatible object types.

Parameters

pointer

is the source device pointer.

DevicePointer() [4/5]

template<typename Object >

TNL::Pointers::DevicePointer< Object, Devices::Cuda >::DevicePointer ( DevicePointer< Object, Devices::Cuda > && pointer )

inlinenoexcept

Move constructor.

Parameters

pointer

is the source device pointer.

DevicePointer() [5/5]

template<typename Object >

template<typename Object_ , typename = Enabler< Object_ >>

TNL::Pointers::DevicePointer< Object, Devices::Cuda >::DevicePointer ( DevicePointer< Object_, DeviceType > && pointer )

inline

Move constructor.

This is specialization for compatible object types.

Parameters

pointer

is the source device pointer.

Member Function Documentation

getData()

template<typename Object >

template<typename Device = Devices::Host>

__cuda_callable__ const Object & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::getData ( ) const

inlinenodiscard

Constant object reference getter.

No synchronization of this pointer will be performed due to calling this method.

Template Parameters

Device

says what image of the object one want to dereference. It can be either DeviceType or Devices::Host.

Returns

constant reference to the object image on given device.

modifyData()

template<typename Object >

template<typename Device = Devices::Host>

__cuda_callable__ Object & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::modifyData ( )

inlinenodiscard

Non-constant object reference getter.

After calling this method, the object owned by the pointer might need to be synchronized. One should not forget to call Pointers::synchronizeSmartPointersOnDevice< Devices::Cuda >() before calling CUDA kernel using object from this smart pointer.

Template Parameters

Device

says what image of the object one want to dereference. It can be either DeviceType or Devices::Host.

Returns

constant reference to the object image on given device.

operator bool()

template<typename Object >

__cuda_callable__ TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator bool ( ) const

inline

Conversion to boolean type.

Returns

Returns true if the pointer is not empty, false otherwise.

operator!()

template<typename Object >

__cuda_callable__ bool TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator! ( ) const

inline

Negation operator.

Returns

Returns false if the pointer is not empty, true otherwise.

operator*() [1/2]

template<typename Object >

__cuda_callable__ Object & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator* ( )

inline

Dereferencing operator for accessing the object owned by non-constant smart pointer.

Returns

reference to the object owned by this smart pointer. It returns reference to object image on the CUDA device if it is called from CUDA kernel and reference to host image otherwise.

operator*() [2/2]

template<typename Object >

__cuda_callable__ const Object & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator* ( ) const

inline

Dereferencing operator for accessing the object owned by constant smart pointer.

Returns

constant reference to the object owned by this smart pointer. It returns reference to object image on the CUDA device if it is called from CUDA kernel and reference to host image otherwise.

operator->() [1/2]

template<typename Object >

__cuda_callable__ Object * TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator-> ( )

inline

Arrow operator for accessing the object owned by non-constant smart pointer.

Returns

pointer to the object owned by this smart pointer. It returns pointer to object image on the CUDA device if it is called from CUDA kernel and pointer to host image otherwise.

operator->() [2/2]

template<typename Object >

__cuda_callable__ const Object * TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator-> ( ) const

inline

Arrow operator for accessing the object owned by constant smart pointer.

Returns

constant pointer to the object owned by this smart pointer. It returns pointer to object image on the CUDA device if it is called from CUDA kernel and pointer to host image otherwise.

operator=() [1/4]

template<typename Object >

const DevicePointer & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator= ( const DevicePointer< Object, Devices::Cuda > & ptr )

inline

Assignment operator.

It assigns object owned by the pointer ptr to this pointer.

Parameters

ptr	input pointer

Returns

constant reference to this

operator=() [2/4]

template<typename Object >

template<typename Object_ , typename = Enabler< Object_ >>

const DevicePointer & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator= ( const DevicePointer< Object_, DeviceType > & ptr )

inline

Assignment operator for compatible object types.

It assigns object owned by the pointer ptr to this pointer.

Parameters

ptr	input pointer

Returns

constant reference to this

operator=() [3/4]

template<typename Object >

const DevicePointer & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator= ( DevicePointer< Object, Devices::Cuda > && ptr )

inlinenoexcept

Move operator.

It assigns object owned by the pointer ptr to this pointer.

Parameters

ptr	input pointer

Returns

constant reference to this

operator=() [4/4]

template<typename Object >

template<typename Object_ , typename = Enabler< Object_ >>

const DevicePointer & TNL::Pointers::DevicePointer< Object, Devices::Cuda >::operator= ( DevicePointer< Object_, DeviceType > && ptr )

inline

Move operator.

It assigns object owned by the pointer ptr to this pointer.

Parameters

ptr	input pointer

Returns

constant reference to this

swap()

template<typename Object >

void TNL::Pointers::DevicePointer< Object, Devices::Cuda >::swap ( DevicePointer< Object, Devices::Cuda > & ptr2 )

inline

Swap the owned object with another pointer.

Parameters

ptr2	the other device pointer for swapping.

synchronize()

template<typename Object >

bool TNL::Pointers::DevicePointer< Object, Devices::Cuda >::synchronize ( )

inlineoverridevirtual

Cross-device pointer synchronization.

This method is usually called by the smart pointers register when calling Pointers::synchronizeSmartPointersOnDevice< Devices::Cuda >()

Returns

true if the synchronization was successful, false otherwise.

Implements TNL::Pointers::SmartPointer.

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

• src/TNL/Pointers/DevicePointer.h