Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

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mwyoung
Posts: 1641
Joined: Wed May 12, 2010 8:00 pm

Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Post by mwyoung » Wed Jun 05, 2019 12:32 am

Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Komodo 13 MCTS shows significant speed gains when using SMT and 32 cores on my system configuration.

If this setting is somehow hurting K13. Komodo's setting instructions do advise against using this many logical cores.
komodo-13.02-64bit.jpg
komodo-13.02-64bit.jpg (55.08 KiB) Viewed 777 times
But the potential speed gains of 28% to 35% need to be tested in real games.

Hardware 2950x, RTX 2080 ti
Komodo 32 Thread, 32 Gb HT
Leela Chess Zero 2 threads, 9900000 NN CS.
6 man Tablebase
12 move opening book
TC= 1h/40 +30m/20

Live Stream: https://www.youtube.com/watch?v=px82fNsWy8Y
Professing themselves to be wise, they became fools,
Take on me. foes 0

mjlef
Posts: 1427
Joined: Thu Mar 30, 2006 12:08 pm
Contact:

Re: Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Post by mjlef » Wed Jun 05, 2019 1:18 am

mwyoung wrote:
Wed Jun 05, 2019 12:32 am
Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Komodo 13 MCTS shows significant speed gains when using SMT and 32 cores on my system configuration.

If this setting is somehow hurting K13. Komodo's setting instructions do advise against using this many logical cores.
komodo-13.02-64bit.jpg
But the potential speed gains of 28% to 35% need to be tested in real games.

Hardware 2950x, RTX 2080 ti
Komodo 32 Thread, 32 Gb HT
Leela Chess Zero 2 threads, 9900000 NN CS.
6 man Tablebase
12 move opening book
TC= 1h/40 +30m/20

Live Stream: https://www.youtube.com/watch?v=px82fNsWy8Y
I would love to hear which tests better. Note for the 16 thread run you should have HT off, although Komodo's default thread binding, binds each program thread to every other system thread if it detects multiple thread per core (basically that HT is on). Once it runs out of threads (such as you setting it for 32 threads) it just lets the OS stick them wherever it wants. I see a few other programs doing the same thing as a way to ensure reasonable binding.

mwyoung
Posts: 1641
Joined: Wed May 12, 2010 8:00 pm

Re: Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Post by mwyoung » Wed Jun 05, 2019 1:23 am

mjlef wrote:
Wed Jun 05, 2019 1:18 am
mwyoung wrote:
Wed Jun 05, 2019 12:32 am
Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Komodo 13 MCTS shows significant speed gains when using SMT and 32 cores on my system configuration.

If this setting is somehow hurting K13. Komodo's setting instructions do advise against using this many logical cores.
komodo-13.02-64bit.jpg
But the potential speed gains of 28% to 35% need to be tested in real games.

Hardware 2950x, RTX 2080 ti
Komodo 32 Thread, 32 Gb HT
Leela Chess Zero 2 threads, 9900000 NN CS.
6 man Tablebase
12 move opening book
TC= 1h/40 +30m/20

Live Stream: https://www.youtube.com/watch?v=px82fNsWy8Y
I would love to hear which tests better. Note for the 16 thread run you should have HT off, although Komodo's default thread binding, binds each program thread to every other system thread if it detects multiple thread per core (basically that HT is on). Once it runs out of threads (such as you setting it for 32 threads) it just lets the OS stick them wherever it wants. I see a few other programs doing the same thing as a way to ensure reasonable binding.
The 16 thread run was with SMT (ht) off.
Professing themselves to be wise, they became fools,
Take on me. foes 0

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