cuda::stream Namespace Reference

Definitions and functionality related to CUDA streams (not including the device wrapper type stream_t itself) More...

Typedefs
using	handle_t = cudaStream_t
	The CUDA Runtime API's handle for streams.
using	priority_t = int
	CUDA streams have a scheduling priority, with lower values meaning higher priority. More...

Enumerations
enum	: bool {   implicitly_synchronizes_with_default_stream = true,   no_implicit_synchronization_with_default_stream = false,   sync = implicitly_synchronizes_with_default_stream,   async = no_implicit_synchronization_with_default_stream,   blocking = sync,   nonblocking = async }
enum	: priority_t { default_priority = 0 }

Functions
stream_t	create (device_t device, bool synchronizes_with_default_stream, priority_t priority=stream::default_priority)
	Create a new stream (= queue) on a CUDA device. More...

Variables
const stream::handle_t	default_stream_handle = nullptr
	The CUDA runtime provides a default stream on which work is scheduled when no stream is specified; for those API calls where you need to specify the relevant stream's ID, and want to specify the default, this is what you use.

Detailed Description

Definitions and functionality related to CUDA streams (not including the device wrapper type stream_t itself)

Typedef Documentation

priority_t

using cuda::stream::priority_t = typedef int

CUDA streams have a scheduling priority, with lower values meaning higher priority.

The types represents a larger range of values than those actually used; they can be obtained by device_t::stream_priority_range() .

Enumeration Type Documentation

anonymous enum

anonymous enum : priority_t

Enumerator
default_priority	the scheduling priority of a stream created without specifying any other priority value

Function Documentation

create()

stream_t cuda::stream::create ( device_t  device, bool  synchronizes_with_default_stream, priority_t  priority = stream::default_priority  )

inline

Create a new stream (= queue) on a CUDA device.

Parameters

device	the device on which a stream is to be created
synchronizes_with_default_stream	if true, no work on this stream will execute concurrently with work from the default stream (stream 0)
priority	priority of tasks on the stream, relative to other streams, for execution scheduling; lower numbers represent higher properties. Each device has a range of priorities, which can be obtained using device_t::stream_priority_range() .

Returns

The newly-created stream