How to time CUDA Event

Specific Domains GPU
1

Hi,

In CUDA C, you can time how long GPU ran by using event, this will record the time for just GPU running time, which does not include data transfer. Is there a similar functionality in CuArray or other GPU packages?

2

CUDAdrv wraps the event API. You can use CUDAdrv.@elapsed to automatically enqueue events before and after code and return the elapsed time between both. Or manually construct CuEvents and call record/synchronize/elapsed on them.

3

Thank you! Is there any difference in reporting between the two methods?

4

No, one is built on top of the other: CUDAdrv.jl/events.jl at 2a77dff0eaad0df12abd8cf05e73b3f9d5968ad5 · JuliaGPU/CUDAdrv.jl · GitHub