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Records an event. If stream is non-zero, the event is recorded after all preceding operations in the stream have been completed; otherwise, it is recorded after all preceding operations in the CUDA context have been completed. Since this operation is asynchronous, cudaEventQuery() and/or cudaEventSynchronize() must be used to determine when the event has actually been recorded.
If cudaEventRecord() has previously been called and the event has not been recorded yet, this function returns cudaErrorInvalidValue.
- Parameters:
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| event | - Event to record |
| stream | - Stream in which to record event |
- Returns:
- cudaSuccess, cudaErrorInvalidValue, cudaErrorInitializationError, cudaErrorPriorLaunchFailure, cudaErrorInvalidResourceHandle
- Note:
- Note that this function may also return error codes from previous, asynchronous launches.
- See also:
- cudaEventCreate, cudaEventCreateWithFlags, cudaEventQuery, cudaEventSynchronize, cudaEventDestroy, cudaEventElapsedTime
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