yacx::KernelArg Class Reference

Inheritance diagram for yacx::KernelArg:

Public Member Functions
	KernelArg (void *data, size_t size, bool download=false, bool copy=true, bool upload=true)
	A constructor. More...
	KernelArg (void *data)
const void *	content () const
CUdeviceptr	deviceptr ()
void	malloc ()
	mallocs data on device
void	uploadAsync (CUstream stream)
void	downloadAsync (CUstream stream)
void	downloadAsync (void *hdata, CUstream stream)
void	free ()
	frees allocated data on device
size_t	size () const
bool	isDownload () const
void	setDownload (bool download)
bool	isCopy () const
void	setCopy (bool copy)

Protected Attributes
const void *	m_hdata
CUdeviceptr	m_ddata
std::shared_ptr< detail::DataCopy >	m_dataCopy

Friends
class	KernelArgs

Detailed Description

Examples

docs/kernel_args.cpp, docs/kernel_launch.cpp, example_gauss.cpp, example_matrix_multiply.cpp, example_program.cpp, example_saxpy.cpp, and example_template.cpp.

Constructor & Destructor Documentation

KernelArg() [1/2]

KernelArg::KernelArg	(	void *	data,
		size_t	size,
		bool	download = false,
		bool	copy = true,
		bool	upload = true
	)

A constructor.

Parameters

data	pointer to argument for kernel function
size	size of argument in bytes
download	copy the results from device to host after kernel execution
copy	copy the results to the device
upload	allocate the argument on the device (not necessary for basic types, e.g. int)

KernelArg() [2/2]

yacx::KernelArg::KernelArg ( void *  data )

inlineexplicit

A constructor for basic types, e.g. int

Parameters

data	pointer to argument for kernel function

Member Function Documentation

content()

const void * KernelArg::content

(

)

const

Returns

pointer to host data

deviceptr()

CUdeviceptr yacx::KernelArg::deviceptr ( )

inline

Returns

pointer to device data

downloadAsync() [1/2]

void yacx::KernelArg::downloadAsync ( CUstream  stream )

inline

downloads data to host

Parameters

stream

to enqueue operations

downloadAsync() [2/2]

void KernelArg::downloadAsync	(	void *	hdata,
		CUstream	stream
	)

downloads data to host

Parameters

hdata	pointer to host memory for the downloaded data
stream	to enqueue operations

uploadAsync()

void KernelArg::uploadAsync

(

CUstream

stream

)

uploads data to device

Parameters

stream

to enqueue operations

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

• include/yacx/KernelArgs.hpp
• src/KernelArg.cpp