Search found 635 matches

by mhull
Wed Apr 11, 2018 5:44 pm
Forum: Computer Chess Club: General Topics
Topic: LCZero: Progress and Scaling. Relation to CCRL Elo
Replies: 604
Views: 104643

Re: LCZero: Progress and Scaling. Relation to CCRL Elo

Indeed. Leela's output is an expected score, not actually a win%. The wording on the site has since been changed, it seems, although now it includes this "50%=draw" bit in the legend, which caused some debate in the discord. Probably should just say "50%=equal chances" or some such thing ("expected...
by mhull
Sun Mar 11, 2018 11:14 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: I'm not very happy with the do {} while() statement in C
Replies: 111
Views: 28261

Re: I'm not very happy with the do {} while() statement in C

saddling the development community with a scrawny architecture basically forever. Well, no. The last true x86 architecture was the 486. After that, we still have the external x86 instruction set, but not the architecture; internally, modern x86 CPUs are something entirely different. And nobody care...
by mhull
Sat Mar 10, 2018 9:17 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: I'm not very happy with the do {} while() statement in C
Replies: 111
Views: 28261

Re: I'm not very happy with the do {} while() statement in C

It is simply what you get when you keep hacking on an instruction set to add new features. The customers have decided that they don't want to throw away all the software they already paid for. That's why backwards compatibility won, because it addressed the needs of the paying customers. But none o...
by mhull
Thu Dec 28, 2017 5:19 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Google's AlphaGo team has been working on chess
Replies: 203
Views: 64160

Re: Google's AlphaGo team has been working on chess

It's still sold. BrainMaker Professional for Windows $795 :lol: CALSCI had a second generation of ISA/PCI accelerator boards that could process 2.3B NN connections per second (a Pentium 90 could do 1.9M connections per second). These boards shipped with either 64 or 128 CPUs and cost up to $8,345. ...
by mhull
Thu Dec 28, 2017 4:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Google's AlphaGo team has been working on chess
Replies: 203
Views: 64160

Re: Google's AlphaGo team has been working on chess

It's still sold. BrainMaker Professional for Windows $795 :lol: Very nice you know that one too! I was already playing with that package 25 years ago. I still have an old version 'BrainMaker v2.52' (written in Borland C) somewhere on my NAS. The floppies it originally came on are long time gone. Ed...
by mhull
Thu Dec 28, 2017 6:49 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Google's AlphaGo team has been working on chess
Replies: 203
Views: 64160

Re: Google's AlphaGo team has been working on chess

That is a start for sure -- proving a NN evaluation could be competive or even much better than a hand crafted evaluation function. The latency of evaluating the NN can be countered with a combination hardware (GPU/TPU) and software (async evaluations) which is what Google did for AlphaGo. Giraffe ...
by mhull
Fri Dec 22, 2017 11:29 pm
Forum: Computer Chess Club: General Topics
Topic: I can't believe that so many people don't get it!
Replies: 149
Views: 29763

Re: I can't believe that so many people don't get it!

They mean normal nodes per second. It is not easy to compare hardware that is very different. Depending on what feature you compare you can make one or the other look better. Stockfish would probably run 20 times slower on the hardware AlphaZero was using than on the hardware it got . It is irrelev...
by mhull
Wed Dec 20, 2017 12:05 am
Forum: Computer Chess Club: General Topics
Topic: Cerebellum analysis of the AlphaZero - Stockfish Games
Replies: 21
Views: 6370

Re: Cerebellum analysis of the AlphaZero - Stockfish Games

I calculated the AlphaZero games and added them to Cerebellum, which took some time because Stockfish naturally needed very long calculation times and many added nodes to finally get the (most likely) correct results. http://www.zipproth.de/Brainfish/Cerebellum_AlphaZero.html I thought about a way ...
by mhull
Tue Dec 19, 2017 11:45 pm
Forum: Computer Chess Club: General Topics
Topic: In chess,AlphaZero outperformed Stockfish after just 4 hours
Replies: 64
Views: 11628

Re: In chess,AlphaZero outperformed Stockfish after just 4 h

I don't care that SF lost, it's totally irrelevant in the light of the huge claim by the Deepmind company, the alleged 4 hours self-play, quoting the document again: without any additional domain knowledge except the rules of the game . Have you already let it sink in what is stated here? No mobili...
by mhull
Mon Dec 18, 2017 7:21 pm
Forum: Computer Chess Club: General Topics
Topic: I can't believe that so many people don't get it!
Replies: 149
Views: 29763

Re: I can't believe that so many people don't get it!

"Monte Carlo search does not use a tradition eval as we know it, so mobility, king safety etc. are irrelevant. It uses a struct to hold info likes wins, losses, draws, win %, etc., then simply references accumulated data for the current position to select the move with the highest probability of wi...