RooBatchCompute::CudaInterface Namespace Reference

Classes
class	Array
	A templated class for managing an array of data using a specified memory type. More...
class	CudaStream

Typedefs
template<class T >
using	DeviceArray = Array<T, DeviceMemory>
	An array of specific type that is allocated on the device with cudaMalloc and freed with cudaFree.
template<class T >
using	PinnedHostArray = Array<T, PinnedHostMemory>
	A pinned array of specific type that allocated on the host with cudaMallocHost and freed with cudaFreeHost.

Functions
template<class T >
void	copyDeviceToDevice (const T *src, T *dest, std::size_t n, CudaStream *stream=nullptr)
	Copies data from the CUDA device to the CUDA device.
template<class T >
void	copyDeviceToHost (const T *src, T *dest, std::size_t n, CudaStream *stream=nullptr)
	Copies data from the CUDA device to the host.
template<class T >
void	copyHostToDevice (const T *src, T *dest, std::size_t n, CudaStream *stream=nullptr)
	Copies data from the host to the CUDA device.

Typedef Documentation

DeviceArray

template<class T >

using RooBatchCompute::CudaInterface::DeviceArray = Array<T, DeviceMemory>

An array of specific type that is allocated on the device with cudaMalloc and freed with cudaFree.

Definition at line 211 of file CudaInterface.h.

PinnedHostArray

template<class T >

using RooBatchCompute::CudaInterface::PinnedHostArray = Array<T, PinnedHostMemory>

A pinned array of specific type that allocated on the host with cudaMallocHost and freed with cudaFreeHost.

The memory is "pinned", i.e. page-locked and accessible to the device for fast copying.

See also

The documentation of cudaMallocHost on developer.download.nvidia.com.

Definition at line 220 of file CudaInterface.h.

Function Documentation

copyDeviceToDevice()

template<class T >

void RooBatchCompute::CudaInterface::copyDeviceToDevice	(	const T *	src,
		T *	dest,
		std::size_t	n,
		CudaStream *	stream = nullptr )

Copies data from the CUDA device to the CUDA device.

Parameters

[in]	src	Pointer to the source memory on the device.
[in]	dest	Pointer to the destination memory on the device.
[in]	n	Number of bytes to copy.
[in]	stream	CudaStream for asynchronous memory transfer (optional).

Definition at line 122 of file CudaInterface.h.

copyDeviceToHost()

template<class T >

void RooBatchCompute::CudaInterface::copyDeviceToHost	(	const T *	src,
		T *	dest,
		std::size_t	n,
		CudaStream *	stream = nullptr )

Copies data from the CUDA device to the host.

Parameters

[in]	src	Pointer to the source memory on the device.
[in]	dest	Pointer to the destination memory on the host.
[in]	n	Number of bytes to copy.
[in]	stream	CudaStream for asynchronous memory transfer (optional).

Definition at line 108 of file CudaInterface.h.

copyHostToDevice()

template<class T >

void RooBatchCompute::CudaInterface::copyHostToDevice	(	const T *	src,
		T *	dest,
		std::size_t	n,
		CudaStream *	stream = nullptr )

Copies data from the host to the CUDA device.

Parameters

[in]	src	Pointer to the source memory on the host.
[in]	dest	Pointer to the destination memory on the device.
[in]	n	Number of bytes to copy.
[in]	stream	CudaStream for asynchronous memory transfer (optional).

Definition at line 94 of file CudaInterface.h.