Search found 318 matches

by Raphexon
Mon Sep 07, 2020 9:10 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 12 dominating CCRL
Replies: 23
Views: 2244

Re: Stockfish 12 dominating CCRL

Stockfish 12 is dominating CCRL blitz (Computer Chess Rating Lists) : 3690 Elo points on 1 thread, 695 games played, 540 wins and just 2 losses. 215 Elo points ahead Komodo 14, and 245 Elo points ahead Houdini 6 on 1 thread. With just 1 thread Stockfish is already the 1st against all engines in bli...
by Raphexon
Thu Sep 03, 2020 8:01 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 12 has arrived!
Replies: 32
Views: 6942

Re: Stockfish 12 has arrived!

Curiously SF 12 actually got a slightly higher average depth (.23 ply) despite only about 76% NPS. I already saw this for a couple of weeks. Probably because the moves at low depth are better with NNUE, so the tree is narrower and taller. There have been a lot of pruning patches since NNUE too. Bec...
by Raphexon
Sun Aug 30, 2020 6:22 pm
Forum: Computer Chess Club: General Topics
Topic: SF-NN embedded
Replies: 59
Views: 11424

Re: SF-NN embedded

It seems 20MB of disk space is prohibitively expensive, or that 20MB of download is incredibly slow on the dial-up internet of the complainers. Spare us your arrogance. The total size of the files I have downloaded from Abrok since nets were embedded totals over 1 GB. That's only two days worth of ...
by Raphexon
Sun Aug 30, 2020 9:11 am
Forum: Computer Chess Club: General Topics
Topic: The next step for LC0?
Replies: 14
Views: 2817

Re: The next step for LC0?

I guess that nothing is optimal. The chess nets we use with SF were developed for Shogi. Why is the size optimal for chess with CPU only? The net size for LC0 was magically pulled out of a hat. It is correct? Soon there will be transparent memory access and CPU will be able to read HBM. We are in t...
by Raphexon
Sat Aug 15, 2020 8:25 am
Forum: Computer Chess Club: General Topics
Topic: Larry Kaufman
Replies: 37
Views: 8428

Re: Larry Kaufman

Larry is a very important person in Computer Chess World. Everyone interested in computer chess knows that he's the author of Komodo engine. I keep learning new interesting things about him. "On January 21-23, 1967, MacHack VI played in the Massachusetts Amateur Championship in Boston. It was the f...
by Raphexon
Fri Aug 14, 2020 2:05 pm
Forum: Computer Chess Club: General Topics
Topic: SF+NNUE 16 cores aganst Stockfish-dev 16 cores and Leela
Replies: 32
Views: 6578

Re: SF+NNUE 16 cores aganst Stockfish-dev 16 cores and Leela

If this score holds then things look like SF will be ahead even on 8 core against 2 x 2080Ti Lc0. Not sure if your network is the strongest network for SF NN but things are progressing so fast that in 2 to 4 weeks there will probably be some fast gains for SF NN and then things will stabilize. By t...
by Raphexon
Mon Aug 10, 2020 8:25 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish NNUE for analysis of positions (Tabias)
Replies: 13
Views: 1634

Re: Stockfish NNUE for analysis of positions (Tabias)

Popcount. I've been running it(alone) on 2 core for 2 hrs now, no problem. Just happened when I ran it in tandem with the other for about 45 min. Your CPU should be able to run the bmi2 and avx2 binaries. The latter should be the fastest, although Intel chips throttle down when handling avx2 instru...
by Raphexon
Mon Aug 10, 2020 8:24 am
Forum: Computer Chess Club: General Topics
Topic: Next step for SF NNUE: Chessbase engine to buy?
Replies: 8
Views: 2640

Re: Next step for SF NNUE: Chessbase engine to buy?

I think SF + NNUE means the end of commercial engines. End of an era. Mark Lefler has reached out to NNUE dev... If he and the Komodo team find a promising nnue architecture and quickly start training they may be able to get close to SF again, despite inferior search. The current top nets are produ...
by Raphexon
Mon Aug 10, 2020 8:18 am
Forum: Computer Chess Club: General Topics
Topic: SF NNUE training questions
Replies: 1
Views: 599

Re: SF NNUE training questions

A sfen is a position.
So it's trained on 1B positions

This is how uncompressed training data looks like / the information a single sfen holds:

fen 2R5/8/7k/3pK3/3P4/1BP3P1/P7/2r5 w - - 1 47
move a2a4
score 1735
ply 92
result 1
e
by Raphexon
Fri Aug 07, 2020 12:00 pm
Forum: Computer Chess Club: General Topics
Topic: stockfish with graphics card
Replies: 11
Views: 2031

Re: stockfish with graphics card

I know NNUE is the thing now but it doesn't use a graphics card at all. This may be a stupid question. But would stockfish using a dedicated graphics card for it's NN evaluation while using 100% (and not 60%) of the cpu for search be theoretically stronger than what is being implemented today? The ...