Rarity: Stockfish 104 Elo patch

Discussion of anything and everything relating to chess playing software and machines.

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Jouni
Posts: 3324
Joined: Wed Mar 08, 2006 8:15 pm

Rarity: Stockfish 104 Elo patch

Post by Jouni »

Improve performance on NUMA systems.

Passed 60+1 @ 256t 16000MB hash: https://tests.stockfishchess.org/tests/ ... d5e27db0d8
```
LLR: 2.95 (-2.94,2.94) <0.00,10.00>
Total: 278 W: 110 L: 29 D: 139 Elo +104.25
Ptnml(0-2): 0, 1, 56, 82, 0
```

Also no regression in 1 or 7 cores :) .
Jouni
CornfedForever
Posts: 641
Joined: Mon Jun 20, 2022 4:08 am
Full name: Brian D. Smith

Re: Rarity: Stockfish 104 Elo patch

Post by CornfedForever »

Jouni wrote: Tue May 28, 2024 10:29 pm Improve performance on NUMA systems.

Passed 60+1 @ 256t 16000MB hash: https://tests.stockfishchess.org/tests/ ... d5e27db0d8
```
LLR: 2.95 (-2.94,2.94) <0.00,10.00>
Total: 278 W: 110 L: 29 D: 139 Elo +104.25
Ptnml(0-2): 0, 1, 56, 82, 0
```

Also no regression in 1 or 7 cores :) .
Saw that...didn't understand it.
Werewolf
Posts: 1847
Joined: Thu Sep 18, 2008 10:24 pm

Re: Rarity: Stockfish 104 Elo patch

Post by Werewolf »

Jouni wrote: Tue May 28, 2024 10:29 pm Improve performance on NUMA systems.

Passed 60+1 @ 256t 16000MB hash: https://tests.stockfishchess.org/tests/ ... d5e27db0d8
```
LLR: 2.95 (-2.94,2.94) <0.00,10.00>
Total: 278 W: 110 L: 29 D: 139 Elo +104.25
Ptnml(0-2): 0, 1, 56, 82, 0
```

Also no regression in 1 or 7 cores :) .
Do you have to set NUMA up for SF, or does SF sort it out for you? I read somewhere choosing the number of threads before setting hash makes a big difference.