Search found 302 matches

by brianr
Wed Mar 20, 2019 11:57 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Super bullet chess: LC0 v0.21.0 network 41619 vs newest Stockfish dev 200319
Replies: 7
Views: 274

Re: Super bullet chess: LC0 v0.21.0 network 41619 vs newest Stockfish dev 200319

With Ponder On and SF getting 4 cores, and Leela typically using 2 cores, just wondering if this was a 6 core system?
Thanks.
by brianr
Sun Mar 17, 2019 5:03 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney March
Replies: 13
Views: 490

Re: On-line engine blitz tourney March

Just wondering if Leela was playing the 6 piece syzygy tablebases, which improve her endgame play far more than traditional a/b engines? I assume there was no book. Thanks. 5 piece syzygy tablebases and an opening book. Was the book made specifically for Leela? If not, it is a significant handicap ...
by brianr
Sun Mar 17, 2019 11:42 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney March
Replies: 13
Views: 490

Re: On-line engine blitz tourney March

Just wondering if Leela was playing the 6 piece syzygy tablebases, which improve her endgame play far more than traditional a/b engines?
I assume there was no book.
Thanks.
by brianr
Tue Mar 12, 2019 5:32 pm
Forum: Computer Chess Club: General Topics
Topic: Help with Leela and graphics cards
Replies: 4
Views: 243

Re: Help with Leela and graphics cards

I am no expert, however this issue has come up several times before. For Leela no SLI is needed (and might hinder performance). The Nvidia libraries handle multiple GPUs automatically, although you have to specify that you want to use both with some parameters. For some games, I think the SLI IS hel...
by brianr
Tue Mar 12, 2019 1:43 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Creating a spoon of TSCP181
Replies: 13
Views: 584

Re: Creating a spoon of TSCP181

To avoid problems with spooning a non-free engine, I might be tempted to create a very basic bitboard engine. Interested? For me, I would follow you with interest, if it really is very basic as you promise. :) I started here a discussion where I try to understand the basics of bitboards. I would li...
by brianr
Thu Mar 07, 2019 9:18 pm
Forum: Computer Chess Club: General Topics
Topic: Questions about graphics cards for Leela
Replies: 14
Views: 971

Re: Questions about graphics cards for Leela

On Phoronix they have some Leela tests: https://www.phoronix.com/scan.php?page=news_item&px=LCZero-NVIDIA-Benchmarks And Radeon cards: https://www.phoronix.com/scan.php?page=article&item=radeon-vii-linux&num=9 The second link doesn't say but I don't think the 20x0 cards were not run with fp16, whic...
by brianr
Thu Mar 07, 2019 1:29 pm
Forum: Computer Chess Club: General Topics
Topic: Questions about graphics cards for Leela
Replies: 14
Views: 971

Re: Questions about graphics cards for Leela

As a sidenote, people with a smaller budget should take a look at the GTX 1660 , which supports the FP16 option, but not raytracing reflections: https://www.nvidia.com/en-us/geforce/news/geforce-gtx-1660-ti-advanced-shaders-streaming-multiprocessor/ Interestingly, it has extra hardware components f...
by brianr
Wed Mar 06, 2019 12:24 pm
Forum: Computer Chess Club: General Topics
Topic: Lc0 GPU load
Replies: 17
Views: 975

Re: Lc0 GPU load

I think he was having reliability issues with all 6 GPUs and found that it runs well with 2, per the subsequent posts at the link
by brianr
Tue Mar 05, 2019 3:26 pm
Forum: Computer Chess Club: General Topics
Topic: Trying out the Leela Hybrid engine (NN with AB)
Replies: 137
Views: 12331

Re: Trying out the Leela Hybrid engine (NN with AB)

It is easy. However, Leela still has a fairly strong "zero" goal; that is, minimal chess-specific coding. Of course, a chess opening book would be quite contrary to the zero principal. If you don't want to provide some log info, perhaps you can use a different GUI. If on Windows, Winboard would be f...
by brianr
Tue Mar 05, 2019 1:20 pm
Forum: Computer Chess Club: General Topics
Topic: Trying out the Leela Hybrid engine (NN with AB)
Replies: 137
Views: 12331

Re: Trying out the Leela Hybrid engine (NN with AB)

I'm not familiar with that GUI.

Perhaps you could try it with Polyglot logging enabled to see what messages pass between it and the GUI.

-log true -lf logfilename

I forgot to mention earlier that it is extremely unlikely that Leela will ever support her own book, at least for quite a long time.