I saw the metrics formula for capability 3.x metrics from: http://dirac.ruc.dk/manuals/cuda-5.0/CUDA_Profiler_Users_Guide.pdf. But there is no formula for capability 7.x metrics. Is there any introduce about how to calculate metrics from events for 7.x?
There isn’t, in the current documentation. They were intentionally removed.
I probably won’t be able to answer questions like “why?” or “what formula is used exactly for this particular metric?”
OK, then I want to know the difference between elapsed_cycles_sm and elapsed_cycles_pm? also want to know the difference between active_cycles_pm and active_warps_pm ? thanks.
Those are not metrics, they are events.
Generally speaking, events are undocumented, currently.
If you’d like to see a change in the CUDA documentation, I recommend filing a bug.