Utility class for asynchronously reading/writing between Rasters and device memory. More...

#include <DataStream.h>

Public Member Functions
	RasterDataStream (isce3::io::Raster *raster, isce3::cuda::core::Stream stream, std::size_t buffer_size=0)
	Constructor. More...

isce3::io::Raster *	raster () const
	Get pointer to Raster object. More...

void	set_raster (isce3::io::Raster *)
	Set raster. More...

isce3::cuda::core::Stream	stream () const
	Get associated CUDA stream object. More...

void	set_stream (isce3::cuda::core::Stream stream)
	Set CUDA stream. More...

std::size_t	buffer_size () const
	Get stream buffer size in bytes. More...

void	resize_buffer (std::size_t buffer_size)
	Set stream buffer size in bytes. More...

template<typename T >
void	load (T *dst, std::size_t col, std::size_t row, std::size_t width, std::size_t length)
	Read a block of data from the Raster and copy to the current device asynchronously. More...

template<typename T >
void	store (const T *src, std::size_t col, std::size_t row, std::size_t width, std::size_t length)
	Write a block of data from the current device to the Raster asynchronously. More...

Detailed Description

Utility class for asynchronously reading/writing between Rasters and device memory.

Constructor & Destructor Documentation

isce3::cuda::io::RasterDataStream::RasterDataStream	(	isce3::io::Raster *	raster,
		isce3::cuda::core::Stream	stream,
		std::size_t	buffer_size = `0`
	)

inline

Constructor.

Parameters

[in]	raster	pointer to raster
[in]	stream	CUDA stream
[in]	buffer_size	stream buffer size in bytes

Member Function Documentation

std::size_t isce3::cuda::io::RasterDataStream::buffer_size ( ) const

inline

Get stream buffer size in bytes.

template<typename T >

void isce3::cuda::io::RasterDataStream::load	(	T *	dst,
		std::size_t	col,
		std::size_t	row,
		std::size_t	width,
		std::size_t	length
	)

inline

Read a block of data from the Raster and copy to the current device asynchronously.

Reading from the Raster may overlap with operations in other CUDA streams. Copying to the device may overlap with operations on the host or in other CUDA streams.

The destination memory address must be in device-accessible memory.

Parameters

[in]	dst	destination memory address
[in]	col	index of first column to read
[in]	row	index of first row to read
[in]	width	number of columns to read
[in]	length	number of rows to read

isce3::io::Raster * isce3::cuda::io::RasterDataStream::raster ( ) const

inline

Get pointer to Raster object.

void isce3::cuda::io::RasterDataStream::resize_buffer ( std::size_t buffer_size )

inline

Set stream buffer size in bytes.

void isce3::cuda::io::RasterDataStream::set_raster ( isce3::io::Raster * raster )

inline

Set raster.

void isce3::cuda::io::RasterDataStream::set_stream ( isce3::cuda::core::Stream stream )

inline

Set CUDA stream.

template<typename T >

void isce3::cuda::io::RasterDataStream::store	(	const T *	src,
		std::size_t	col,
		std::size_t	row,
		std::size_t	width,
		std::size_t	length
	)

inline

Write a block of data from the current device to the Raster asynchronously.

Copying from the device may overlap with operations on the host or in other CUDA streams. Writing to the Raster may overlap with operations in other CUDA streams.

The source memory address must be in device-accessible memory.

Parameters

[in]	src	source memory address
[in]	col	index of first column to write
[in]	row	index of first row to write
[in]	width	number of columns to write
[in]	length	number of rows to write

isce3::cuda::core::Stream isce3::cuda::io::RasterDataStream::stream ( ) const

inline

Get associated CUDA stream object.

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

isce/cxx/isce3/cuda/io/DataStream.h
isce/cxx/isce3/cuda/io/DataStream.icc

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation