Search found 206 matches

by Sesse
Tue Aug 13, 2019 6:47 pm
Forum: Computer Chess Club: General Topics
Topic: Does computer chess sponsorship exist?
Replies: 24
Views: 5160

Re: Does computer chess sponsorship exist?

zullil wrote:
Tue Aug 13, 2019 6:04 pm
Not sure it matters. Start looking for chess-loving sheikh. :wink:
Pretty few sheikhs roaming the streets here in Norway, but I'll keep an eye out!
by Sesse
Tue Aug 13, 2019 5:56 pm
Forum: Computer Chess Club: General Topics
Topic: Does computer chess sponsorship exist?
Replies: 24
Views: 5160

Re: Does computer chess sponsorship exist?

lkaufman wrote:
Tue Aug 13, 2019 3:25 pm
According to talkchess posts, Houdini was sponsored by an Arab Sheikh. I don't have any direct knowledge of that.
I thought that was Hydra.
by Sesse
Tue Aug 13, 2019 5:55 pm
Forum: Computer Chess Club: General Topics
Topic: Does computer chess sponsorship exist?
Replies: 24
Views: 5160

Re: Does computer chess sponsorship exist?

jp wrote:
Tue Aug 13, 2019 2:54 pm
How did you get the existing server for Sesse?
Bought it, with my own money. That is, of course, the main plan unless something unexpected should happen.
by Sesse
Tue Aug 13, 2019 2:14 pm
Forum: Computer Chess Club: General Topics
Topic: Does computer chess sponsorship exist?
Replies: 24
Views: 5160

Does computer chess sponsorship exist?

Is there any record of people ever having received sponsorship for computer chess? I'm a year or so from buying a new server for analysis.sesse.net, and I know Intel (and probably also AMD) has a long tradition of throwing hardware at various people for research, gaming, etc.—but I've never heard of...
by Sesse
Wed Jul 31, 2019 3:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Coverity Scan
Replies: 9
Views: 3111

Re: Coverity Scan

FWIW: it looks like c++17 still gives problems but with c++11 and below you'll be fine. It has huge problems with C++11, too. E.g., the latest version finally understands lock_guard<T>, but still not unique_lock<T>, so it produces tons of false positives around locking. I really want to like Coveri...
by Sesse
Wed Jun 12, 2019 4:00 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: strategies for finding slowdows in lazy smp
Replies: 26
Views: 6044

Re: strategies for finding slowdows in lazy smp

jdart wrote:
Tue Jun 04, 2019 10:20 pm
A profiler might also be helpful. You could try OProfile for Linux (http://oprofile.sourceforge.net/news/).
oprofile? Is this 1999? :-)

perf is really what you want these days; it has basically all the mindshare. If you want something more GUI-ish and commercial, there's stuff like VTune.
by Sesse
Fri Apr 26, 2019 8:55 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Prefetch and Threading
Replies: 4
Views: 1485

Re: Prefetch and Threading

I tried prefetch for TT in Stockfish at some point, and couldn't measure a gain. As you say, the prefetch is really only effective if you can issue the prefetch some time before the actual access.
by Sesse
Fri Apr 05, 2019 3:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Elo World, a framework forbenchmarking weak chess engines
Replies: 9
Views: 4122

Re: Elo World, a framework forbenchmarking weak chess engines

It is a joke you guys. If it helps, read the last page: "The author would also like to thank the anonymous referees of the Special Interest Group on Bafflingly Overdone Ventures In Chess journal for their careful reviews." It's a SIGBOVIK paper; SIGBOVIK is a joke conference. But Tom7 frequently su...
by Sesse
Wed Jan 30, 2019 11:50 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: How powerful is the Queen compared to 2 Rooks ?
Replies: 104
Views: 11516

Re: How powerful is the Queen compared to 2 Rooks ?

Here is what Stockfish says about the value of chessmen (note that pawns are not 100) during the midgame and during the endgame: PawnValueMg = 136, PawnValueEg = 208, KnightValueMg = 782, KnightValueEg = 865, BishopValueMg = 830, BishopValueEg = 918, RookValueMg = 1289, RookValueEg = 1378, QueenVal...
by Sesse
Sat Jan 26, 2019 10:44 am
Forum: Computer Chess Club: General Topics
Topic: Big boost in strength for LC0 by simply changing VGA card
Replies: 19
Views: 4784

Re: Big boost in strength for LC0 by simply changing VGA card

The RTX 2000 series has specialized hardware for neural networks. These “tensor cores” is the reason why your new GPU blows the old one out of the water—the number of CUDA cores simply doesn't matter, as they're not the ones doing the work.