Search found 391 matches

by yurikvelo
Wed Nov 28, 2018 9:25 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 7-men Syzygy attempt
Replies: 572
Views: 90124

Re: 7-men Syzygy attempt

Is it waste to purchase 10 TB HDD for storing WDL for simple adjudication with cutechess? The idea is that engines probe 5-men during search + automatic 7-piece adjudication once 7 pieces remains on the board. It will speed up endgames somewhat compared to 6-piece adjudication. But is worth the inv...
by yurikvelo
Thu Nov 15, 2018 3:10 pm
Forum: Computer Chess Club: General Topics
Topic: Is Deep Blue source code open?
Replies: 23
Views: 2341

Re: Is Deep Blue source code open?

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.136.9853&rep=rep1&type=pdf Deep Blue II Third change Development of a set of software tools to aid in debugging and match preparation, eg., evaluation tuning and visualization tools. Hybrid software/hardware search - The software search is ext...
by yurikvelo
Wed Nov 14, 2018 7:29 pm
Forum: Computer Chess Club: General Topics
Topic: Is Deep Blue source code open?
Replies: 23
Views: 2341

Re: Is Deep Blue source code open?

AFAIK Deep Blue source code had evaluation function in a generalized form. This function was "trained" and this training data is not part of source code, but rather dynamic data, which can be enhanced with more games thrown on it and also manually intervented by team stuff. I doubt DB can be reprodu...
by yurikvelo
Sat Nov 03, 2018 10:10 pm
Forum: Chess Players Forum
Topic: Big discrepancy between Men's and Women's Prize
Replies: 23
Views: 2437

Re: Big discrepancy between Men's and Women's Prize

no discrepancy, man who play the same level get 100x less. there is much more positive discrimination of woman: they are paid the same as men even if their productivity (based on willingness and abilities) is much lower than of man at same position and they almost never agree to work the same amount...
by yurikvelo
Fri Nov 02, 2018 10:07 am
Forum: Computer Chess Club: General Topics
Topic: Which OS is better for chess? Windows or Linux.
Replies: 34
Views: 3572

Re: Which OS is better for chess? Windows or Linux.

The first problem in TOP500 is paying for licenses for a couple of thousand nodes…. If you can get the cost down to $10 each, that is still a couple of $10,000 spent on software… and with that amount you could buy an additional 20 or more nodes. The next problem is license management. There used to ...
by yurikvelo
Wed Oct 31, 2018 2:54 pm
Forum: Computer Chess Club: General Topics
Topic: Which OS is better for chess? Windows or Linux.
Replies: 34
Views: 3572

Re: Which OS is better for chess? Windows or Linux.

Question is very specific: Windows speed penalty on heavily multhithreaded NUMA machines with at least 16+ threads. If one invest in such machine to run chess engines - Linux or Windows won't matter. But does this penalty really exist? If it exist - it has simple cause which can be fixed in couple m...
by yurikvelo
Wed Oct 31, 2018 9:39 am
Forum: Computer Chess Club: General Topics
Topic: Which OS is better for chess? Windows or Linux.
Replies: 34
Views: 3572

Re: Which OS is better for chess? Windows or Linux.

Probably this is source for gossips: https://www.phoronix.com/scan.php?page=article&item=ryzen-2700x-winlin&num=4 https://www.forbes.com/sites/jasonevangelho/2018/08/15/want-faster-performance-with-amd-threadripper-2-use-linux/ https://www.pcworld.com/article/3298859/components-processors/how-memory...
by yurikvelo
Wed Oct 31, 2018 8:09 am
Forum: Computer Chess Club: General Topics
Topic: Which OS is better for chess? Windows or Linux.
Replies: 34
Views: 3572

Re: Which OS is better for chess? Windows or Linux.

No one answered very specific question: does Ryzen 2 gives much more Mn/sec under Linux?
by yurikvelo
Wed Oct 31, 2018 7:42 am
Forum: Computer Chess Club: General Topics
Topic: What was the top Chess engine before it was Stockfish, Komodo or Houdini?
Replies: 58
Views: 5097

Re: What was the top Chess engine before it was Stockfish, Komodo or Houdini?

Deep Blue rating has very wide bars due to many facts: * very low game count = 6 * Kasparov used Pentium 166MMX with some strong engine of that time (don't remember which one) * specially for this match, Kasparov didn't play naturally at his best. He had prejudice on computer play style, based on hi...
by yurikvelo
Tue Oct 30, 2018 9:14 am
Forum: Computer Chess Club: General Topics
Topic: Komodo TCEC is doing really well so far against Stockfish
Replies: 15
Views: 2172

Re: Komodo TCEC is doing really well so far against Stockfish

I said in context of "poorer branching factor".
We don't know branching factor, since it cannot be calculated from UCI option Depth