Search found 1039 matches

by corres
Sun May 10, 2020 2:01 pm
Forum: Computer Chess Club: General Topics
Topic: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio
Replies: 26
Views: 2823

Re: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio

I used the first 40 games from my xkTRIAD-SV-T60-3350_Stockfish200502 test as base-test. In this test Stockfish parameters were Contempt = +24 (default), Hash = 2 GB, Threads = 16 x 4000 MHz. Re-run these 40 games with Stockfish parameters Contempt = -75, Hash = 2 GB, Threads = 6 x 4000 Mhz. In both...
by corres
Sun May 10, 2020 6:10 am
Forum: Computer Chess Club: General Topics
Topic: Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350
Replies: 2
Views: 499

Re: Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350

For tests I used my DUAL GPUs (2 x RTX 2060 OC) and Leela ver.0.25.0 Parameters were as default (kiudee), exclude: Threads 4 x 4000 MHz Backend Multiplexing BackendOptions (backend=cudnn-fp16,gpu=0),(backend=cudnn-fp16,gpu=1) NNCacheSize 20000000 MinibatchSize 64 Start positions were 100 opening po...
by corres
Sat May 09, 2020 12:54 pm
Forum: Computer Chess Club: General Topics
Topic: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio
Replies: 26
Views: 2823

Re: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio

Saw this post last night and decided to try, I don't have a six core system. I have a quad core box with hyperthreading. I used the -75 comtempt with Stockfish 11BMI vs LC0 63426 using 1 RTX2070 Super. I ran a 40 game test which finished this morning. Time control was 4'2 Blitz, Stockfish 11 using ...
by corres
Fri May 08, 2020 9:57 am
Forum: Computer Chess Club: General Topics
Topic: Apolgies - wrong forum!
Replies: 2
Views: 532

Re: Ethnic minority Covid-related deaths in UK

The ONS (Office for National Statistics) has released data showing that a British citizen of Afro-Caribbean origin is 4.2 times more likely to die of Covid-19 than a white citizen after adjusting for age. By the same measurement a Pakistani or a Bangladeshi is 3.5 times as likely to die than a whit...
by corres
Fri May 08, 2020 9:12 am
Forum: Computer Chess Club: General Topics
Topic: Leela (lack of) endgame technique?
Replies: 34
Views: 5261

Re: Leela (lack of) endgame technique?

LC0 (formerly LCZero), a new approach in computerchess to play the best chess by using a "Neural Network" instead of prunning moves away by "alpha-beta-prunning" (as current engines are based on still momentarely as SF/Houdini/Komodo are), is more or less 1 year among us and performs increadable ca...
by corres
Fri May 08, 2020 8:06 am
Forum: Computer Chess Club: General Topics
Topic: Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350
Replies: 2
Views: 499

Re: Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350

For tests I used my DUAL GPUs (2 x RTX 2060 OC) and Leela ver.0.25.0 Parameters were as default (kiudee), exclude: Threads 4 x 4000 MHz Backend Multiplexing BackendOptions (backend=cudnn-fp16,gpu=0),(backend=cudnn-fp16,gpu=1) NNCacheSize 20000000 MinibatchSize 64 Start positions were 100 opening po...
by corres
Thu May 07, 2020 4:56 pm
Forum: Computer Chess Club: General Topics
Topic: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio
Replies: 26
Views: 2823

Re: LC0 30x384 (3350) + 2x RTX 2080 Ti vs Stockfish Dev 22.04.2020 + 6 cores + Contempt -75 should be a fair play/ratio

Some notes: 1,40 games are too few to measure Elo. 2,Basically the contempt has effect on the style of an engine and it has smaller effect on Elo. 3,The chess power of Leela strongly depends on the used net and the parameters of Leela together with move time. 4,In general against a dual RTX 2080 Ti...
by corres
Wed May 06, 2020 7:27 am
Forum: Computer Chess Club: General Topics
Topic: Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350
Replies: 2
Views: 499

Comparisons:Jhorthos J13B.2-188 with Leela 63390 and SV 384x30-T60-3350

For tests I used my DUAL GPUs (2 x RTX 2060 OC) and Leela ver.0.25.0 Parameters were as default (kiudee), exclude: Threads 4 x 4000 MHz Backend Multiplexing BackendOptions (backend=cudnn-fp16,gpu=0),(backend=cudnn-fp16,gpu=1) NNCacheSize 20000000 MinibatchSize 64 Start positions were 100 opening pos...
by corres
Mon May 04, 2020 9:32 am
Forum: Computer Chess Club: General Topics
Topic: Lc0 CUDA 10.2 compile (0.25.1) is faster
Replies: 14
Views: 1413

Re: Lc0 CUDA 10.2 compile (0.25.1) is faster

As I remember well CUDA 10.2 needs VS 2019 compiler and newer NVIDIA GPU driver. NVIDIA Windows 10 64 bits and Windows 7 64 bits driver ver.445.87 is applicable to CUDA 10.2 but some user marked some issue with it. Any experience using for Leela? I am using it, seems fine, both this compile and the...
by corres
Mon May 04, 2020 8:39 am
Forum: Computer Chess Club: General Topics
Topic: Lc0 CUDA 10.2 compile (0.25.1) is faster
Replies: 14
Views: 1413

Re: Lc0 CUDA 10.2 compile (0.25.1) is faster

As I remember well CUDA 10.2 needs VS 2019 compiler and newer NVIDIA GPU driver. NVIDIA Windows 10 64 bits and Windows 7 64 bits driver ver.445.87 is applicable to CUDA 10.2 but some user marked some issue with it. Any experience using for Leela? I am using it, seems fine, both this compile and the...