cuda::event::ipc Namespace Reference

Definitions and functionality related to CUDA events (not including the event wrapper type event_t itself) More...

Typedefs
using	handle_t = CUipcEventHandle
	The concrete value passed between processes, used to tell the CUDA Runtime API which event is desired. More...

Functions
handle_t	export_ (const event_t &event)
	Enable use of an event which this process created by other processes. More...
event_t	import (const device_t &device, const handle_t &event_ipc_handle)
	Obtain a proper CUDA event, corresponding to an event created by another process, using a handle communicated via operating-system inter-process communications. More...
event_t	import (const context_t &context, const handle_t &event_ipc_handle)

Detailed Description

Definitions and functionality related to CUDA events (not including the event wrapper type event_t itself)

Typedef Documentation

handle_t

typedef CUipcEventHandle cuda::event::ipc::handle_t

The concrete value passed between processes, used to tell the CUDA Runtime API which event is desired.

The CUDA driver's raw handle for events passed between processes.

Function Documentation

export_()

handle_t cuda::event::ipc::export_ ( const event_t &  event )

inline

Enable use of an event which this process created by other processes.

Parameters

event

the event to share with other processes

Returns

the handle to pass directly to other processes with which they may obtain a proper CUDA event

import() [1/2]

event_t cuda::event::ipc::import ( const device_t &  device, const handle_t &  event_ipc_handle  )

inline

Obtain a proper CUDA event, corresponding to an event created by another process, using a handle communicated via operating-system inter-process communications.

Note

IMHO, the CUDA runtime API should allow for obtaining the device from an event handle (or otherwise - have a handle provide both an event handle and a device ID), but that is not currently the case.

Parameters

event_ipc_handle	the handle obtained via inter-process communications
device	the device with which the imported event is associated

import() [2/2]

event_t cuda::event::ipc::import ( const context_t &  context, const handle_t &  event_ipc_handle  )

inline

Parameters

context	the device-context with which the imported event is associated
event_ipc_handle	The handle created by another process, to be imported

Returns

An event usable in the current process