Makes all future work submitted to
hStream wait until
hEvent reports completion before beginning execution. This synchronization will be performed efficiently on the device. The event
hEvent may be from a different context than
hStream, in which case this function will perform cross-device synchronization.
hStream will wait only for the completion of the most recent host call to cuEventRecord() on
hEvent. Once this call has returned, any functions (including cuEventRecord() and cuEventDestroy()) may be called on
hEvent again, and subsequent calls will not have any effect on
hStream is 0 (the NULL stream) any future work submitted in any stream will wait for
hEvent to complete before beginning execution. This effectively creates a barrier for all future work submitted to the context.
If cuEventRecord() has not been called on
hEvent, this call acts as if the record has already completed, and so is a functional no-op.
|hStream ||- Stream to wait |
|hEvent ||- Event to wait on (may not be NULL) |
|Flags ||- Parameters for the operation (must be 0)|
- CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_HANDLE,
- Note that this function may also return error codes from previous, asynchronous launches.
- See also:
- cuStreamCreate, cuEventRecord, cuStreamQuery, cuStreamSynchronize, cuStreamDestroy