Specialisation of vecmem::copy for CUDA. More...

#include <vecmem/utils/cuda/async_copy.hpp>

Inheritance diagram for vecmem::cuda::async_copy:

Public Types
using	event_type = std::unique_ptr< abstract_event >
	Event type used by the copy class.

Public Member Functions
VECMEM_CUDA_EXPORT	async_copy (const stream_wrapper &stream)
	Constructor with the stream to operate on.

VECMEM_CUDA_EXPORT	~async_copy ()
	Destructor.

template<typename TYPE >
copy::event_type	setup (data::vector_view< TYPE > data) const

template<typename TYPE >
copy::event_type	setup (data::jagged_vector_view< TYPE > data) const

template<typename SCHEMA >
copy::event_type	setup (edm::view< SCHEMA > data) const

template<typename TYPE >
copy::event_type	memset (data::vector_view< TYPE > data, int value) const

template<typename TYPE >
copy::event_type	memset (data::jagged_vector_view< TYPE > data, int value) const

template<typename... VARTYPES>
copy::event_type	memset (edm::view< edm::schema< VARTYPES... > > data, int value) const

template<typename TYPE >
copy::event_type	operator() (const data::vector_view< std::add_const_t< TYPE > > &from_view, data::vector_view< TYPE > to_view, type::copy_type cptype) const

template<typename TYPE , typename ALLOC >
copy::event_type	operator() (const data::vector_view< std::add_const_t< TYPE > > &from_view, std::vector< TYPE, ALLOC > &to_vec, type::copy_type cptype) const

template<typename TYPE >
copy::event_type	operator() (const data::jagged_vector_view< std::add_const_t< TYPE > > &from_view, data::jagged_vector_view< TYPE > to_view, type::copy_type cptype) const

template<typename TYPE , typename ALLOC1 , typename ALLOC2 >
copy::event_type	operator() (const data::jagged_vector_view< std::add_const_t< TYPE > > &from_view, std::vector< std::vector< TYPE, ALLOC2 >, ALLOC1 > &to_vec, type::copy_type cptype) const

template<typename... VARTYPES>
copy::event_type	operator() (const edm::view< edm::details::add_const_t< edm::schema< VARTYPES... > > > &from_view, edm::view< edm::schema< VARTYPES... > > to_view, type::copy_type cptype) const

template<typename... VARTYPES, template< typename > class INTERFACE>
copy::event_type	operator() (const edm::view< edm::details::add_const_t< edm::schema< VARTYPES... > > > &from_view, edm::host< edm::schema< VARTYPES... >, INTERFACE > &to_vec, type::copy_type cptype) const

template<typename TYPE >
copy::event_type	set_sizes (const std::vector< typename data::vector_view< TYPE >::size_type > &sizes, data::jagged_vector_view< TYPE > data) const

1-dimensional vector data handling functions
template<typename TYPE >
VECMEM_NODISCARD event_type	setup (data::vector_view< TYPE > data) const
	Set up the internal state of a vector buffer correctly on a device.

template<typename TYPE >
VECMEM_NODISCARD event_type	memset (data::vector_view< TYPE > data, int value) const
	Set all bytes of the vector to some value.

template<typename TYPE >
data::vector_buffer< std::remove_cv_t< TYPE > >	to (const data::vector_view< TYPE > &data, memory_resource &resource, type::copy_type cptype=type::unknown) const
	Copy a 1-dimensional vector to the specified memory resource.

template<typename TYPE >
VECMEM_NODISCARD event_type	operator() (const data::vector_view< std::add_const_t< TYPE > > &from, data::vector_view< TYPE > to, type::copy_type cptype=type::unknown) const
	Copy a 1-dimensional vector's data between two existing memory blocks.

template<typename TYPE , typename ALLOC >
VECMEM_NODISCARD event_type	operator() (const data::vector_view< std::add_const_t< TYPE > > &from, std::vector< TYPE, ALLOC > &to, type::copy_type cptype=type::unknown) const
	Copy a 1-dimensional vector's data into a vector object.

template<typename TYPE >
data::vector_view< TYPE >::size_type	get_size (const data::vector_view< TYPE > &data) const
	Helper function for getting the size of a resizable 1D buffer.

Jagged vector data handling functions
template<typename TYPE >
VECMEM_NODISCARD event_type	setup (data::jagged_vector_view< TYPE > data) const
	Copy the internal state of a jagged vector buffer to the target device.

template<typename TYPE >
VECMEM_NODISCARD event_type	memset (data::jagged_vector_view< TYPE > data, int value) const
	Set all bytes of the jagged vector to some value.

template<typename TYPE >
data::jagged_vector_buffer< std::remove_cv_t< TYPE > >	to (const data::jagged_vector_view< TYPE > &data, memory_resource &resource, memory_resource *host_access_resource=nullptr, type::copy_type cptype=type::unknown) const
	Copy a jagged vector to the specified memory resource.

template<typename TYPE >
VECMEM_NODISCARD event_type	operator() (const data::jagged_vector_view< std::add_const_t< TYPE > > &from, data::jagged_vector_view< TYPE > to, type::copy_type cptype=type::unknown) const
	Copy a jagged vector's data between two existing allocations.

template<typename TYPE , typename ALLOC1 , typename ALLOC2 >
VECMEM_NODISCARD event_type	operator() (const data::jagged_vector_view< std::add_const_t< TYPE > > &from, std::vector< std::vector< TYPE, ALLOC2 >, ALLOC1 > &to, type::copy_type cptype=type::unknown) const
	Copy a jagged vector's data into a vector object.

template<typename TYPE >
std::vector< typename data::vector_view< TYPE >::size_type >	get_sizes (const data::jagged_vector_view< TYPE > &data) const
	Helper function for getting the sizes of a resizable jagged vector.

template<typename TYPE >
VECMEM_NODISCARD event_type	set_sizes (const std::vector< typename data::vector_view< TYPE >::size_type > &sizes, data::jagged_vector_view< TYPE > data) const
	Helper function for setting the sizes of a resizable jagged vector.

SoA container handling functions
template<typename SCHEMA >
VECMEM_NODISCARD event_type	setup (edm::view< SCHEMA > data) const
	Set up the internal state of a buffer correctly on a device.

template<typename... VARTYPES>
VECMEM_NODISCARD event_type	memset (edm::view< edm::schema< VARTYPES... > > data, int value) const
	Set all bytes of the container to some value.

template<typename... VARTYPES>
VECMEM_NODISCARD event_type	operator() (const edm::view< edm::details::add_const_t< edm::schema< VARTYPES... > > > &from, edm::view< edm::schema< VARTYPES... > > to, type::copy_type cptype=type::unknown) const
	Copy between two views.

template<typename... VARTYPES, template< typename > class INTERFACE>
VECMEM_NODISCARD event_type	operator() (const edm::view< edm::details::add_const_t< edm::schema< VARTYPES... > > > &from, edm::host< edm::schema< VARTYPES... >, INTERFACE > &to, type::copy_type cptype=type::unknown) const
	Copy from a view, into a host container.

template<typename... VARTYPES>
edm::view< edm::schema< VARTYPES... > >::size_type	get_size (const edm::view< edm::schema< VARTYPES... > > &data) const
	Get the (outer) size of a resizable SoA container.

Protected Member Functions
virtual VECMEM_CUDA_EXPORT void	do_copy (std::size_t size, const void from, void to, type::copy_type cptype) const override final
	Perform an asynchronous memory copy using CUDA.

virtual VECMEM_CUDA_EXPORT void	do_memset (std::size_t size, void *ptr, int value) const override final
	Fill a memory area using CUDA asynchronously.

virtual VECMEM_CUDA_EXPORT event_type	create_event () const override final
	Create an event for synchronization.

virtual void	do_copy (std::size_t size, const void from, void to, type::copy_type cptype) const
	Perform a "low level" memory copy.

Detailed Description

Specialisation of vecmem::copy for CUDA.

This specialisation of vecmem::copy, unlike vecmem::cuda::copy, performs all of its operations asynchronously. Using the CUDA stream that is given to its constructor.

It is up to the user to ensure that copy operations are performed in the right order, and they would finish before an operation that needs them is executed.

Member Function Documentation

◆ create_event()

async_copy::event_type vecmem::cuda::async_copy::create_event ( ) const

finaloverrideprotectedvirtual

Create an event for synchronization.

Reimplemented from vecmem::copy.

◆ do_memset()

void vecmem::cuda::async_copy::do_memset	(	std::size_t	size,
		void *	ptr,
		int	value
	)		const

finaloverrideprotectedvirtual

Fill a memory area using CUDA asynchronously.

Reimplemented from vecmem::copy.

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

cuda/include/vecmem/utils/cuda/async_copy.hpp
cuda/src/utils/cuda/async_copy.cpp

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation

◆ create_event()

◆ do_memset()