I nearly always find benchmark numbers useless because they don't have nearly enough information about how they're run and what the profile is. It's difficult t

I nearly always find benchmark numbers useless because they don't have nearly enough information about how they're run and what the profile is. It's difficult to gain much understanding otherwise. (A classic case is communication-sensitive programs without information on MPI parameters like collective algorithms.) Can someone comment on how any of these that are basically computational behave -- e.g. memory pressure, FP density, threading? I can't immediately find profile information, for instance, though I could derive it with some effort. Also, is there definitive information somewhere on the POWER9 SIMD implementation (e.g. vector width), which I couldn't find when I last looked.