Surprise: avx2 compile gives +31 Elo to Berserk
Posted: Sun Mar 31, 2024 9:35 pm
When testing different Berserk versions I was surprised how much avx2 can give:
Nps speed up is 27%. I was expecting minor gain at this level only.
Code: Select all
Score of berserk-12.1-avx2-pext vs berserk-12.1-ssse3: 105 - 69 - 226 [0.545]
... berserk-12.1-avx2-pext playing White: 105 - 0 - 95 [0.762] 200
... berserk-12.1-avx2-pext playing Black: 0 - 69 - 131 [0.328] 200
... White vs Black: 174 - 0 - 226 [0.718] 400
Elo difference: 31.4 +/- 22.4, LOS: 99.7 %, DrawRatio: 56.5 %
400 of 400 games finished.