Search found 491 matches

by AndrewGrant
Thu Jan 02, 2020 4:00 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: RMO - Randomized Move Order - yet another Lazy SMP derivate
Replies: 113
Views: 6044

Re: RMO - Randomized Move Order - yet another Lazy SMP derivate

instead they send update to a timer thread who writes them, but only accepts depth increasing updates. So I have a guarantee that the highest completed depth is reported "immediately", and that (full) depth updates are sequential. Is this most recently reported completed depth guaranteed to be the ...
by AndrewGrant
Wed Jan 01, 2020 1:04 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: RMO - Randomized Move Order - yet another Lazy SMP derivate
Replies: 113
Views: 6044

Re: RMO - Randomized Move Order - yet another Lazy SMP derivate

This basically means that your whole world of pencil and paper is an illusion. Perhaps a big part of reason is the chaotic nature of modern search (with all the path dependt effects like history ordering and its effect on lmr etc.). That and the chaotic nature of thread scheduling, becoming chaos^2...
by AndrewGrant
Tue Dec 31, 2019 1:26 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: RMO - Randomized Move Order - yet another Lazy SMP derivate
Replies: 113
Views: 6044

Re: RMO - Randomized Move Order - yet another Lazy SMP derivate

This basically means that your whole world of pencil and paper is an illusion. Perhaps a big part of reason is the chaotic nature of modern search (with all the path dependt effects like history ordering and its effect on lmr etc.). That and the chaotic nature of thread scheduling, becoming chaos^2...
by AndrewGrant
Fri Dec 06, 2019 5:06 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: FGRL rating list - 10 min, Lc0 v0.22.0 LD2, Godel 6.0 - 60 min, Ethereal 11.75
Replies: 1
Views: 235

Re: FGRL rating list - 10 min, Lc0 v0.22.0 LD2, Godel 6.0 - 60 min, Ethereal 11.75

Thanks for testing :) I was looking forward to seeing the 60min results, as I had a feeling Ethereal would scale well and gain an edge over Fire/Xiphos
by AndrewGrant
Mon Dec 02, 2019 2:00 pm
Forum: Computer Chess Club: General Topics
Topic: Usefulness of "Leela ratio"
Replies: 9
Views: 770

Re: Usefulness of "Leela ratio"

Useful for naive comparison of testing configurations.
Useless as a basis for determining what is balanced.
by AndrewGrant
Wed Nov 27, 2019 12:05 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CCRL 40/40, 40/4 and FRC lists updated (23rd November 2019)
Replies: 22
Views: 2006

Re: CCRL 40/40, 40/4 and FRC lists updated (23rd November 2019)

Anyone who conscientiously tests Lc0 against AB Engines knows, there is a Lc0 Ratio for reliable results. And CCRL knows that too. Nevertheless, CCRL does not release any information about it. Agreed. Any testing of NN-engine vs AB-engines without information about the Leela-Ratio makes the results...
by AndrewGrant
Wed Nov 27, 2019 11:19 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: CCRL 40/40, 40/4 and FRC lists updated (23rd November 2019)
Replies: 22
Views: 2006

Re: CCRL 40/40, 40/4 and FRC lists updated (23rd November 2019)

Anyone who conscientiously tests Lc0 against AB Engines knows, there is a Lc0 Ratio for reliable results. And CCRL knows that too. Nevertheless, CCRL does not release any information about it. Agreed. Any testing of NN-engine vs AB-engines without information about the Leela-Ratio makes the results...
by AndrewGrant
Sun Nov 17, 2019 7:55 am
Forum: Computer Chess Club: General Topics
Topic: Official Release of Ethereal 11.75, supporting MultiPV
Replies: 53
Views: 4852

Re: Official Release of Ethereal 11.75, supporting MultiPV

Not sure if you're brave or crazy or both. I think the max is less than that for sf, so I am not at all sure what happened. Usually, you engines have min and max for all settings. I guess that is past the max. But if you enter from the command line rather than a gui, it might do something crazy. Pe...
by AndrewGrant
Sat Nov 16, 2019 10:49 pm
Forum: Computer Chess Club: General Topics
Topic: Fat Fritz Flummoxed
Replies: 16
Views: 1397

Re: Fat Fritz Flummoxed

info depth 50 seldepth 128 multipv 1 score cp 98 time 24350096 nodes 972335631376 nps 39931000 tbhits 0 hashfull 1000 pv e5f7 e8f7 d1h5 f7e6 c2c4 d5f6 d4d5 e6d6 h5f7 d7c5 b2b4 c8f5 b4c5 d6d7 b1c3 d8e8 f7e8 a8e8 c1a3 e7e6 e1c1 h7h5 c1b2 f6e4 f1d3 e4c3 b2c3 f5d3 d1d3 e6d5 c4d5 e8e2 d3d2 e2d2 c3d2 h5h4...
by AndrewGrant
Fri Nov 15, 2019 8:44 pm
Forum: Computer Chess Club: General Topics
Topic: Official Release of Ethereal 11.75, supporting MultiPV
Replies: 53
Views: 4852

Re: Official Release of Ethereal 11.75, supporting MultiPV

A year ago, I was using Arena 3.5 as my primary chess engines tournament program using a maximum of 7 instances to run a tournament. I got the inspiration to use 32 concurrencies with cutechess when Ethereal became very strong and Andrew revealed that he was using 32 bit concurrencies in cutechess ...