aclrtEventElapsedTime

Applicability

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	√

Description

Computes the elapsed time between two events.

This API must be used with other key APIs. The API call sequence is as follows: Call aclrtCreateEvent or aclrtCreateEventWithFlag to create an event --> Call aclrtRecordEvent to record the start event and end event in a stream --> Call aclrtSynchronizeStream to wait until the stream tasks are completed --> Call aclrtEventElapsedTime to compute the elapsed time between two events.

Prototype

aclError aclrtEventElapsedTime(float *ms, aclrtEvent startEvent, aclrtEvent endEvent)

Parameters

Parameter	Input/Output	Description
ms	Output	Pointer to the elapsed time between the start and end events, in milliseconds.
startEvent	Input	Start event.
endEvent	Input	End event.

Returns

0 on success; else, failure. For details, see aclError.

Parent topic: Event Management