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histogramsimdamd-processoravx512
wrgj
wrgj

Reputation: 41

Does AVX-512 scatter work efficiently on Zen 5?

I read a few years ago that gather and scatter in AVX 512 weren't very efficient. Has this changed in AMD's implementation with the Zen5 (Granite Ridge/Turin) architecture? ie Ryzen 9000 desktop or Epyc server processors.

I was looking into performance improvements for histogramming a few years ago and am wondering if it is time to revisit the benefit of the scatter intrinsics.

Thanks!!

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