Is there any way to see SM activity/SM util on P100?

The old P100 is neither supported by nsight compute nor supported in DCGM’s metrics. Any other way?

You can try nvprof or NVIDIA Visual Profiler for P100, which are also included in the cuda toolkit. The mapping between nvprof and Nsight compute are listed here Nsight Compute CLI :: Nsight Compute Documentation.

Thanks, very fast reply!