This Intel Forum post entitled "AVX-512 is a big step forward - but repeating pa... | Hacker News

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nkurz on Sept 28, 2014 | parent | context | favorite | on: Counting bytes fast

This Intel Forum post entitled "AVX-512 is a big step forward - but repeating past mistakes" addresses some of these issues: https://software.intel.com/en-us/forums/topic/477541

The debate is essentially whether AVX-512 is making a mistake by giving up 8-bit and 16-bit operations. Agner feels it's a mistake, but other smart people argue that it's not a problem.

innocenat on Sept 28, 2014 | [–]

And those has been added back in AVX512BW.

nkurz on Sept 28, 2014 | | [–]

Thanks! That's big news, and I'd missed it: https://software.intel.com/en-us/blogs/additional-avx-512-in...

Narishma on Sept 28, 2014 | [–]

There seems to be only one person in that thread arguing that it's not a problem.

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