Search found 2142 matches

by Albert Silver
Mon May 20, 2019 2:26 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: SL vs RL
Replies: 8
Views: 864

Re: SL vs RL

I found my little test MCTS SL program screwing up in game play because this sort of situation..., Black Q gives check. Check piece is en prise. King has some moves. Policy trained SL gave the king move evasions normal probabilities, 0.25, 0.12 sort of values. But the obvious Q capture (which would...
by Albert Silver
Mon May 20, 2019 3:52 am
Forum: Computer Chess Club: General Topics
Topic: Question for Nelson Hernandez - TCEC power consumption
Replies: 2
Views: 295

Re: Question for Nelson Hernandez - TCEC power consumption

Question: What is the precise power draw from the A/B machine and the NN machine in the current TCEC 15 Superfinal? We can calculate this value based on hardware specs, but I want to know based on actual measurements, such as with a Kill-A-Watt or similar. Even better, I'd like to see a power use g...
by Albert Silver
Mon May 20, 2019 3:30 am
Forum: Computer Chess Club: General Topics
Topic: Amd graphic cards for Leela
Replies: 3
Views: 382

Re: Amd graphic cards for Leela

I've seen Nvidia benchmarks for Leela but not any AMD ones. Are the latest and best amd cards good for Leela? Any benchmarks? The problem is that there is a huge disparity in performance as the Nvidia GPUs benefit from the CUDA coding, while the AMD cards are restricted to the OpenCL model. This ca...
by Albert Silver
Thu May 16, 2019 4:20 am
Forum: Computer Chess Club: General Topics
Topic: Rh3 gets a small advantage. All other moves lose
Replies: 3
Views: 260

Re: Rh3 gets a small advantage. All other moves lose

Thanks for the nice test positions. What engines take time to find this? Any top ones? I'm not sure how well or poor this is. dep score nodes time (not shown: tbhits knps seldep) 32 +0.39 1.26G 0:55.26 Rh3 f5 Nf6 h6 Bxc5 exd5 Qxh6+ Bxh6 Rxh6+ Kg7 Rh7+ Kf8 Rxc7 Rxc7 Bxd6+ Re7 exd5 Rd8 Bxe7+ Nxe7 bxc...
by Albert Silver
Sat May 11, 2019 3:32 pm
Forum: Computer Chess Club: General Topics
Topic: Rh3 gets a small advantage. All other moves lose
Replies: 3
Views: 260

Re: Rh3 gets a small advantage. All other moves lose

Thanks for the nice test positions. What engines take time to find this? Any top ones?
by Albert Silver
Tue Apr 30, 2019 5:41 pm
Forum: Computer Chess Club: General Topics
Topic: Can Leela use 2x RTX gpus?
Replies: 15
Views: 836

Re: Can Leela use 2x RTX gpus?

No, I am saying it doesn't scale up with more cores at all . In fact, you will lose performance with more cores, not gain. But for the example I gave - dual 2080 Ti - 3 cores is clearly faster than one. I'm not sure I follow your point. Nor do I understand yours. I told the OP that slow clocks were...
by Albert Silver
Mon Apr 29, 2019 4:39 pm
Forum: Computer Chess Club: General Topics
Topic: Can Leela use 2x RTX gpus?
Replies: 15
Views: 836

Re: Can Leela use 2x RTX gpus?

Using chessbase 15 gui? Using chessok Aquarium gui? What should I do? Google and see where this has been asked many times before Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus. The CPU they have is also a factor. Slow core clocks will hurt performance, ...
by Albert Silver
Sat Apr 27, 2019 4:46 pm
Forum: Computer Chess Club: General Topics
Topic: Can Leela use 2x RTX gpus?
Replies: 15
Views: 836

Re: Can Leela use 2x RTX gpus?

Using chessbase 15 gui? Using chessok Aquarium gui? What should I do? Google and see where this has been asked many times before Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus. The CPU they have is also a factor. Slow core clocks will hurt performance, ...
by Albert Silver
Mon Apr 22, 2019 7:36 pm
Forum: Computer Chess Club: General Topics
Topic: Dual RTX 2060 for Leela
Replies: 66
Views: 6858

Re: Dual RTX 2060 for Leela

Basing on the common test data before we can make a list of RTX 2000 line GPUs. The common parameters are: NET: 11250 Backend: cudnn-fp16 Minibatchsize: 512 NNcachesize: 2000000 Other parameters are default The list: RTX 2060 OC max nps = 28646 (corres) RTX 2070 non-OC max nps = 29357 (Laskos) RTX ...
by Albert Silver
Wed Apr 17, 2019 4:25 am
Forum: Computer Chess Club: General Topics
Topic: The problem with adjudication based on score
Replies: 26
Views: 4224

Re: The problem with adjudication based on score

Try this one in your favorite chess engine and you will see the problem immediately (unless some engine scores it zero): 7r/6p1/7P/p1r1p1k1/Pp1pPp2/1PpP1Pp1/2P3P1/K6R w - - I did not send this to an engine, but am wondering what the problem is. White is dead lost, no? 1.hxg7 Rxh1+ 2.Ka2 Ra1+ 3.Kxa1...