Zen3 supports fast PEXT aka BMI2
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Rom77
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- Full name: Roman Zhukov
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unserializable
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Re: Zen3 supports fast PEXT aka BMI2
Anandtech has measured improvement in Zen3 PEXT instruction to be around two magnitudes: New and Improved Instructions, table "Zen3 Updates (2) Integer Instructions", commentary:
"The other element is the introduction of a hardware accelerator with parallel bits: latency is reduced 99% and throughput is up 250x. If anyone asks why we ever need extra transistors for modern CPUs, it’s for things like this."
Monchester 1.0, chess engine playing at scholastic level: https://github.com/unserializable/monchester ("Daddy, it is gonna take your horsie!")
Tickle Monchester at: https://lichess.org/@/monchester
Tickle Monchester at: https://lichess.org/@/monchester