I am using Nsight Compute for performance measurement, and I have a question about how to read the item.
It uses the GPU of A100 and used Nsight Compute with the following settings.
[GPU Clock (A100)]
Base: 765 MHz
Boost: 1410 MHz
[Clock Control (Nsight Compute)]
None
If you check the information for a specific kernel in this state, the value of “SM Frquency” is about 1200 - 1350.
(As an example, we use “histogram” for the cuda-sample. GitHub - NVIDIA/cuda-samples: Samples for CUDA Developers which demonstrates features in CUDA Toolkit )
If “Clock Control” is “None”, the frequency is fixed at 1410 Mhz. Why is this value not constant?
In the first place, I think “SM Frequency” refers to the frequency, but what does “SM Frequency” refer to?
Regarding the question, if I set “Clock Control” to “Base”, will this value be 765 Mhz?