skepu::DeviceMemPointer_CU< T > Class Template Reference

A class representing a CUDA device memory allocation for container. More...

#include <device_mem_pointer_cu.h>

Collaboration diagram for skepu::DeviceMemPointer_CU< T >:

List of all members.

Public Member Functions
	DeviceMemPointer_CU (T *start, int numElements, Device_CU *device)
	DeviceMemPointer_CU (T *start, int rows, int cols, Device_CU *device, bool usePitch=false)
	DeviceMemPointer_CU (T *root, T *start, int numElements, Device_CU *device)
	~DeviceMemPointer_CU ()
void	copyHostToDevice (int numElements=-1) const
void	copyDeviceToHost (int numElements=-1) const
T *	getDeviceDataPointer () const
int	getDeviceID () const
void	changeDeviceData ()

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Detailed Description

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

A class representing a CUDA device memory allocation for container.

This class represents a CUDA 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_CU< T >::DeviceMemPointer_CU	(	T *	start,
		int	numElements,
		Device_CU *	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.
deviceID	ID of a valid CUDA device to allocate memory on.

References skepu::Device_CU::getDeviceID().

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template<typename T >

skepu::DeviceMemPointer_CU< T >::DeviceMemPointer_CU	(	T *	start,
		int	rows,
		int	cols,
		Device_CU *	device,
		bool	usePitch = false
	)

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.
rows	Number of rows to allocate memory for.
cols	Number of columns to allocate memory for.
deviceID	ID of a valid CUDA device to allocate memory on.
usePitch	To specify whether to use padding to ensure proper coalescing for row-wise access from CUDA global memory.

References skepu::Device_CU::getDeviceID().

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template<typename T >

skepu::DeviceMemPointer_CU< T >::DeviceMemPointer_CU	(	T *	root,
		T *	start,
		int	numElements,
		Device_CU *	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.
deviceID	ID of a valid CUDA device to allocate memory on.

References skepu::Device_CU::getDeviceID().

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template<typename T >

skepu::DeviceMemPointer_CU< T >::~DeviceMemPointer_CU

(

)

The destructor releases the allocated device memory.

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Member Function Documentation

template<typename T >

void skepu::DeviceMemPointer_CU< T >::changeDeviceData

(

)

Marks the device data as changed.

template<typename T >

void skepu::DeviceMemPointer_CU< T >::copyDeviceToHost

(

int

numElements = -1

)

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.

template<typename T >

void skepu::DeviceMemPointer_CU< T >::copyHostToDevice

(

int

numElements = -1

)

const

Copies data from host memory to device memory.

Parameters:

numElements

Number of elements to copy, default value -1 = all elements.

template<typename T >

T * skepu::DeviceMemPointer_CU< T >::getDeviceDataPointer

(

)

const

Returns:

Pointer to device memory.

template<typename T >

int skepu::DeviceMemPointer_CU< T >::getDeviceID

(

)

const

Returns:

The device ID of the CUDA device that has the allocation.

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

• include/skepu/src/device_mem_pointer_cu.h