News for hackers. Stuff that matters.

A comment on Gathering Intel on Intel AVX-512 Transitions. Parent comment

Re:Gathering Intel on Intel AVX-512 Transitions by zwegner on Friday January 17, 2020 @03:54PM (#22079176)
But what about instructions like vpermi2b, which does 64 parallel 128 byte table lookups? The AVX shuffle instructions were hamstrung by the split into two 16-byte halves...
[ Parent | on HN ]
Re:Gathering Intel on Intel AVX-512 Transitions by BeeOnRope on Friday January 17, 2020 @05:43PM (#22080354)
Yeah, the shuffles are awesome in AVX-512.
[ Parent | on HN ]