Search found 337 matches

by brianr
Mon Oct 07, 2019 1:11 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: A book on machine learning
Replies: 7
Views: 1804

Re: A book on machine learning

I think this one is pretty good, albeit for Go not Chess, and it's a bit pricey.
However, it does cover quite a lot specifically for Alpha Zero, and the code code samples do work (with a bit of tweaking last time I tried).

https://www.amazon.com/Deep-Learning-Ga ... 1617295329
by brianr
Fri Oct 04, 2019 10:55 am
Forum: Computer Chess Club: General Topics
Topic: buying a new computer
Replies: 280
Views: 40712

Re: buying a new computer

I would stay away from the 2060's because they only have 6GB of VRAM. The 2060 Supers all have 8gb of VRAM as far as I know. I would also stay away from reference design cards. Best to check reviews of the thermal performance of any card you select as this can be an issue in dual card configuration...
by brianr
Sun Sep 29, 2019 11:53 am
Forum: Computer Chess Club: General Topics
Topic: Laptop for Leela
Replies: 6
Views: 1057

Re: Laptop for Leela

For running at about 30 sec or so per move I doubt that you would notice any strength difference. I did not look at the detailed specs of those two, but if one is considerably less expensive... Leela also does better with full 6 piece syzygy tablebases which should ideally fit on an SSD (about 150 G...
by brianr
Sun Sep 29, 2019 11:37 am
Forum: Computer Chess Club: General Topics
Topic: Laptop for Leela
Replies: 6
Views: 1057

Re: Laptop for Leela

It may not be an option that works for you, but unless you very much want a laptop for portability a desktop would be a better option for Leela. You could also use a desktop and remote in to it from a mobile device. Leela works GPUs very hard, and the ones in laptops can get too hot, and then they a...
by brianr
Thu Sep 12, 2019 1:54 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Some newbie questions about lc0
Replies: 8
Views: 2085

Re: Some newbie questions about lc0

I am not aware of a good way to limit gpu use with Lc0, other than to have another gpu card.

If you have more than one, see here:
https://blog.lczero.org/2019/04/backend ... ation.html
by brianr
Thu Aug 29, 2019 5:28 pm
Forum: Computer Chess Club: General Topics
Topic: DQ 1.2 vs Bad Gyal 7 - the power of policy
Replies: 7
Views: 1198

Re: DQ 1.2 vs Bad Gyal 7 - the power of policy

FWIW, it is quite a lot stronger than that, I think, at least on the hardware below. I trained a large 320x24 net and played against Stockfish 7 on one CPU (i5 3570K, 3.4GHz, boost to 3.8) My net was clearly stronger on an RTX 2060 (I know, not a favorable "Leela Ratio" for SF). Score of SF7 vs T60-...
by brianr
Mon Aug 26, 2019 1:12 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Some newbie questions about lc0
Replies: 8
Views: 2085

Re: Some newbie questions about lc0

The input size is not a major factor and bitmaps are needed to approximate an "image" of the board for the nets to learn to generalize from, so mailbox might not work at all. The Alpha Zero paper explains it in detail. It is something like 14 bitmaps of 8x8 for 8 ply plus some for castling and such ...
by brianr
Sun Aug 25, 2019 5:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Some newbie questions about lc0
Replies: 8
Views: 2085

Re: Some newbie questions about lc0

!papers LeelaBotBOTToday at 12:43 PM A general reinforcement learning algorithm that masters chess, shogi and Go through self-play: https://deepmind.com/documents/260/alphazero_preprint.pdf Mastering the game of Go with Deep Neural Networks & Tree Search: https://deepmind.com/research/publications/m...
by brianr
Sun Aug 25, 2019 4:39 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Some newbie questions about lc0
Replies: 8
Views: 2085

Re: Some newbie questions about lc0

Here is perhaps not the best place to ask about Lc0. You may already know about the wiki as you compiled Lc0. https://github.com/LeelaChessZero/lc0/wiki is a good source of info There is also a Forum here https://groups.google.com/forum/#!forum/lczero and the #help channel here (which is the most ac...
by brianr
Tue Aug 20, 2019 8:47 pm
Forum: Computer Chess Club: General Topics
Topic: The advantages of NN Learning engines..........
Replies: 8
Views: 1277

Re: The advantages of NN Learning engines..........

You have it all wrong. It has no learning and no reinforcement learning either. It was just randomness due to thinking time and whatever happened on your machine. I certainly defer to the Lc0 experts, but I think the default mode with Leela is not to clear memory tables between games. Of course thi...