Search found 4801 matches

by Laskos
Sat Aug 08, 2020 10:02 am
Forum: Computer Chess Club: General Topics
Topic: Sergio Vieri second net is out
Replies: 167
Views: 14248

Re: Sergio Vieri second net is out

Can somebody reproduce 30 Elo gain shown in SV plot since net 0943 (after 7-8 nets)? My today's results are nowhere close to these 30 Elo points.
by Laskos
Fri Aug 07, 2020 2:42 pm
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

smatovic wrote:
Fri Aug 07, 2020 11:28 am
Hmm, so what's left? Windows SMT and maybe some kind of CPU micro-code update?

--
Srdja
Some nonsense is left. I will restart my PC after I finish today my project.
by Laskos
Fri Aug 07, 2020 11:16 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

60% speedup from hyperthreading using SF NNUE at longer TC, pretty crazy. What's that? 4 physical cores, 8 logical Games Completed = 100 of 100 (Avg game length = 60.676 sec) Settings = Gauntlet/128MB/15000ms+250ms/M 700cp for 3 moves, D 120 moves/EPD:C:\LittleBlitzer\2moves_80_100.epd(1749) Time =...
by Laskos
Fri Aug 07, 2020 11:02 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

smatovic wrote:
Fri Aug 07, 2020 9:34 am
You could do a plain NPS experiment with zero hashtable, just to figure out
what kind of impact memory latencies have on nowadays SF.

--
Srdja
The same speed-up, only at some 15% lower NPS than using hashtable.
by Laskos
Fri Aug 07, 2020 10:37 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

60% speedup from hyperthreading using SF NNUE at longer TC, pretty crazy. What's that? 4 physical cores, 8 logical Games Completed = 100 of 100 (Avg game length = 60.676 sec) Settings = Gauntlet/128MB/15000ms+250ms/M 700cp for 3 moves, D 120 moves/EPD:C:\LittleBlitzer\2moves_80_100.epd(1749) Time =...
by Laskos
Fri Aug 07, 2020 8:05 am
Forum: Computer Chess Club: General Topics
Topic: this will be the merge of a lifetime : SF 80 Elo+
Replies: 115
Views: 7485

Re: this will be the merge of a lifetime : SF 80 Elo+

https://tests.stockfishchess.org/tests/view/5f290229a5abc164f05e4c58 I think this qualifies for SF 12!! Using an unbalanced opening book built from 2moves_v1 to decrease the draw rate, I am getting about 150 Elo points advantage of the best SV nets and latest SF compile over SF_dev at 15s + 0.25s t...
by Laskos
Fri Aug 07, 2020 7:57 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

Stockfish NNUE SV benefits 8 threads much more effective than Stockfish Dev according to your test results. This may be a serious advantage in the TCEC tournament. But according to this conditions (Stockfish NNUE engines are getting stronger fast) we will see 44 cores/88 threads instead of 88 cores...
by Laskos
Fri Aug 07, 2020 7:51 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

60% speedup from hyperthreading using SF NNUE at longer TC, pretty crazy. What's that? 4 physical cores, 8 logical Games Completed = 100 of 100 (Avg game length = 60.676 sec) Settings = Gauntlet/128MB/15000ms+250ms/M 700cp for 3 moves, D 120 moves/EPD:C:\LittleBlitzer\2moves_80_100.epd(1749) Time =...
by Laskos
Fri Aug 07, 2020 7:49 am
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

With mine i7 4790 4 physical cores, 8 logical, I seem to get a tremendous boost from hyperthreading with both SF_dev and SF NNUE, especially SF NNUE. Did something happened with Intel hyperthreading on Windows 10 and I am unaware of? A couple of ideas: 1. CPUs have become better at running threads ...
by Laskos
Thu Aug 06, 2020 7:47 pm
Forum: Computer Chess Club: General Topics
Topic: What happens with my hyperthreading?
Replies: 22
Views: 875

Re: What happens with my hyperthreading?

Interesting results. But how about 6 threads vs 4 threads match? Can you test it. I made some tests a few months ago. In my tests Stockfish 11 (9 threads) was stronger than Stockfish 11 (6 threads) and Stockfish 11 (12 threads). My cpu is Core i7-9750H (6 cores/ 12 threads) I have this result becau...