ReleaseEventID

Applicability

Product	Supported/Unsupported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference product's AI Core	√
Atlas inference product's Vector Core	x
Atlas training products	√

Function Usage

Releases TEventID of a hard event (hardware synchronization event). This API is usually used together with AllocEventID.

Prototype

template <HardEvent evt>
__aicore__ inline void ReleaseEventID(TEventID id)

Parameters

**Table 1** Parameters in the template
Parameter	Description
evt	HardEvent hardware synchronization type. For details about this type, see the description of synchronization types in the SetFlag/WaitFlag(ISASI).

**Table 2** Parameters
Parameter	Input/Output	Description
id	Input	TEventID type, which is the TEventID assigned by the AllocEventID call.

Restrictions

AllocEventID and ReleaseEventID must appear in pairs. The TEventID transferred by ReleaseEventID must be assigned by the AllocEventID call.

Returns

None

Example

AscendC::TEventID eventID = GetTPipePtr()->AllocEventID<AscendC::HardEvent::V_S>(); //The scalar needs to wait for vector synchronization and the HardEvent ID is required.
AscendC::SetFlag<AscendC::HardEvent::V_S>(eventID);
......
......
......
AscendC::WaitFlag<AscendC::HardEvent::V_S>(eventID);
GetTPipePtr()->ReleaseEventID<AscendC::HardEvent::V_S>(eventID); //Release the ID of the hard event (scalar waiting for vector synchronization).
......

Parent topic: TPipe