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[abulmo2]

Has there ever been REAL hyperthreading test? You need 2 identical PCs one with HT=on and another with HT=off! In single PC You cannot test HT on/off at same time. Right?

I am running a 3'+1" tournament right now to see if I can see something for Amoeba. The result won't be generalisable to Stockfish or other stronger engine though.

Some preliminary results:

Code: Select all

Amoeba 3.4 x8 (HT=off) vs Amoeba 3.4 x16 (HT=on): final score: 7-15-78
   # PLAYER                 : RATING  ERROR   POINTS  PLAYED    (%)
   1 Amoeba 3.4 x16         : 2314.0   24.9     54.0     100   54.0%
   2 Amoeba 3.4 x8          : 2286.0   24.9     46.0     100   46.0%

White advantage = 0.00
Draw rate (equal opponents) = 50.00 %