skepu::DeviceMemPointer_CL< T > Class Template Reference

A class representing an OpenCL device memory allocation for container. More...

#include <device_mem_pointer_cl.h>

Collaboration diagram for skepu::DeviceMemPointer_CL< T >:

List of all members.

Public Member Functions
	DeviceMemPointer_CL (T *root, T *start, int numElements, Device_CL *device)
	DeviceMemPointer_CL (T *start, int numElements, Device_CL *device)
	~DeviceMemPointer_CL ()
void	copyHostToDevice (int numElements=-1, bool copyLast=false) const
void	copyDeviceToHost (int numElements=-1, bool copyLast=false) const
void	copyDeviceToDevice (cl_mem copyToPointer, int numElements, int dstOffset=0, int srcOffset=0) const
cl_mem	getDeviceDataPointer () const
void	changeDeviceData ()

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Detailed Description

template<typename T>
class skepu::DeviceMemPointer_CL< T >

A class representing an OpenCL device memory allocation for container.

This class represents an OpenCL device 1D memory allocation and controls the data transfers between host and device.

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Constructor & Destructor Documentation

template<typename T >

skepu::DeviceMemPointer_CL< T >::DeviceMemPointer_CL	(	T *	root,
		T *	start,
		int	numElements,
		Device_CL *	device
	)

The constructor allocates a certain amount of space in device memory and stores a pointer to some data in host memory.

Parameters:

root	Pointer to starting address of data in host memory (can be same as start).
start	Pointer to data in host memory.
numElements	Number of elements to allocate memory for.
device	Pointer to a valid device to allocate the space on.

References skepu::Device_CL::getContext(), and skepu::Device_CL::getQueue().

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template<typename T >

skepu::DeviceMemPointer_CL< T >::DeviceMemPointer_CL	(	T *	start,
		int	numElements,
		Device_CL *	device
	)

The constructor allocates a certain amount of space in device memory and stores a pointer to some data in host memory.

Parameters:

start	Pointer to data in host memory.
numElements	Number of elements to allocate memory for.
device	Pointer to a valid device to allocate the space on.

References skepu::Device_CL::getContext(), and skepu::Device_CL::getQueue().

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template<typename T >

skepu::DeviceMemPointer_CL< T >::~DeviceMemPointer_CL

(

)

The destructor releases the allocated device memory.

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Member Function Documentation

template<typename T >

void skepu::DeviceMemPointer_CL< T >::changeDeviceData

(

)

Marks the device data as changed.

template<typename T >

void skepu::DeviceMemPointer_CL< T >::copyDeviceToDevice	(	cl_mem	copyToPointer,
		int	numElements,
		int	dstOffset = 0,
		int	srcOffset = 0
	)		const

Copies data from device memory to another device memory.

Parameters:

copyToPointer	The destination address.
numElements	Number of elements to copy, default value -1 = all elements.
dstOffset	Offset (if any) in destination pointer.
srcOffset	Offset (if any) in source pointer.

template<typename T >

void skepu::DeviceMemPointer_CL< T >::copyDeviceToHost	(	int	numElements = -1,
		bool	copyLast = false
	)		const

Copies data from device memory to host memory. Only copies if data on device has been marked as changed.

Parameters:

numElements	Number of elements to copy, default value -1 = all elements.
copyLast	Boolean flag specifying whether should copy last updated copy only (default: false).

template<typename T >

void skepu::DeviceMemPointer_CL< T >::copyHostToDevice	(	int	numElements = -1,
		bool	copyLast = false
	)		const

Copies data from host memory to device memory.

Parameters:

numElements	Number of elements to copy, default value -1 = all elements.
copyLast	Boolean flag specifying whether should copy last updated copy only (default: false).

template<typename T >

cl_mem skepu::DeviceMemPointer_CL< T >::getDeviceDataPointer

(

)

const

Returns:

OpenCL memory object representing data on the device.

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

• include/skepu/src/device_mem_pointer_cl.h