Search found 411 matches

by Rémi Coulom
Mon Mar 18, 2019 7:47 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: create log on android
Replies: 3
Views: 580

Re: create log on android

Is your engine compiled with the NDK? The Android way of writing logs is to use the log native API: https://developer.android.com/ndk/reference/group/logging I have code like this in my program: #ifdef __ANDROID__ #include <android/log.h> #define LOG(x) do {\ std::ostringstream oss;\ oss << x;\ __an...
by Rémi Coulom
Tue May 15, 2018 10:52 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Cool web applet
Replies: 18
Views: 2929

Re: Cool web applet

The requested URL /membergraphics/MSinteractive-diagrams/WhitePawn.png was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
by Rémi Coulom
Sun May 06, 2018 12:16 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: MCTS with minmax backup operator?
Replies: 24
Views: 4084

Re: MCTS with minmax backup operator?

The policy network is a static rule (unlike an actual shallow depth search). If it is mostly good, then it won't give enough visits for trap moves that look bad initially but turn out to be good on exhaustive search. If it is bad, there is no hope. So the question is how likely are traps in actual ...
by Rémi Coulom
Sun May 06, 2018 10:13 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: GPU ANN, how to deal with host-device latencies?
Replies: 8
Views: 1609

Re: GPU ANN, how to deal with host-device latencies?

Double buffering: transfer the next batch to the device while the previous batch is being computed. The biggest problem is not host-devices latencies, but the inefficiency of small batches. With CUDNN, it is impossible to get good performance with batch_size=1. Especially on big GPUs with tensor cor...
by Rémi Coulom
Sat May 05, 2018 2:04 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: MCTS with minmax backup operator?
Replies: 24
Views: 4084

Re: MCTS with minmax backup operator?

I see. Using a policy would probably help a lot. The shogi tournament was this week, and finished today. I was late in my preparation, and started to train my network on Monday. I was pleasantly surprised by how fast it made progress. The tournament started on Thursday. I could not qualify past the ...
by Rémi Coulom
Sat May 05, 2018 9:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: MCTS with minmax backup operator?
Replies: 24
Views: 4084

Re: MCTS with minmax backup operator?

The result for me clearly demonstrates that any kind of averaging deterioriates elo, except for the case of "avg" and "avg-old" (look below for definitions). 1. scorpio-mcts-min 425 35 35 687 84.9% -69 14.8% 2. scorpio-mcts-mix 321 32 32 687 77.7% -52 22.6% 3. scorpio-mcts-ab 284 31 31 687 73.7% -4...
by Rémi Coulom
Wed Feb 21, 2018 6:50 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: World Computer Chess Championship
Replies: 169
Views: 33468

Re: World Computer Chess Championship

Hi David, Thanks for participating in this discussion. I'll try to express my feelings about why I don't want to participate any more. I don't think the opacity of the ICGA is the main problem. The Japanese associations that organize the tournaments I participate in are opaque to me, too. But I real...
by Rémi Coulom
Wed Feb 21, 2018 12:33 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: World Computer Chess Championship
Replies: 169
Views: 33468

Re: World Computer Chess Championship

Also, for reference, I'd like to point to a similar discussion that took place 9 years ago: https://www.game-ai-forum.org/viewtopic.php?f=15&t=66 I was the programmers representative at that time. The 8-core limit decision was made in a completely opaque way. I was not at all involved in the discuss...
by Rémi Coulom
Wed Feb 21, 2018 11:14 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: World Computer Chess Championship
Replies: 169
Views: 33468

Re: World Computer Chess Championship

In Japan, they have very successful IRL tournaments for go and shogi. I'll participate in the World Computer Shogi Championship this year. Below is the list of the number of entrants in the past years: ================================= WCSC (year) #applicants #entrants ======================...