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Re: Introducing Igel chess engine

Posted: Sat Dec 26, 2020 4:34 pm
by voffka
Carlos777 wrote: Sat Dec 26, 2020 10:46 am Thank you. It is still not working, I sent you a PM with the details.
Sent you another compile, with SSE 3 and SSE 4 instead of SSE 4.1.

Re: Introducing Igel chess engine

Posted: Sun Dec 27, 2020 11:52 am
by Chessqueen
voffka wrote: Sat Dec 26, 2020 4:34 pm
Carlos777 wrote: Sat Dec 26, 2020 10:46 am Thank you. It is still not working, I sent you a PM with the details.
Sent you another compile, with SSE 3 and SSE 4 instead of SSE 4.1.
Where are the executable files of Igel :?:

Re: Introducing Igel chess engine

Posted: Sun Dec 27, 2020 2:56 pm
by voffka
Chessqueen wrote: Sun Dec 27, 2020 11:52 am
voffka wrote: Sat Dec 26, 2020 4:34 pm
Carlos777 wrote: Sat Dec 26, 2020 10:46 am Thank you. It is still not working, I sent you a PM with the details.
Sent you another compile, with SSE 3 and SSE 4 instead of SSE 4.1.
Where are the executable files of Igel :?:
The official Igel executable are at https://github.com/vshcherbyna/igel/releases/tag/2.9.0

The binaries I compile for people are custom and best suited for their cpu architecture (in terms of performance), so it is not a general purpose releases, hence I will not publish them on the project page.

Re: Introducing Igel chess engine

Posted: Sun Dec 27, 2020 6:45 pm
by Sylwy
voffka wrote: Fri Dec 25, 2020 9:44 pm Image

Igel 2.9.0 at https://github.com/vshcherbyna/igel/releases/tag/2.9.0 (official executable binaries for Windows and IGN net).

After three months of generating data using Igel's own search and evaluation and training several network architectures I am happy to announce a new version of Igel 2.9.0 that uses it's own network trained on Igel search/eval data (around 2.3 billions of depth 8 and 500 millions of depth 12). Earlier versions of this network seen strong participation of Igel in TCEC Season 20 and should bring more than 20 elo of strength at LTC.

What's new:

- Switch to own network based on Igel search and evaluation (ign-0-9b1937cc)
- NNUE dynamic eval scaling

Regression run against Igel 2.8.0 at 60s+0.6:

Code: Select all

ELO   | 24.06 +- 5.30 (95%)
SPRT  | 60.0+0.6s Threads=1 Hash=64MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 7376 W: 1908 L: 1398 D: 4070
+85 Elo points (after only 13 games) in my test vs. SlowChess Blitz Classic 2.4 x64 (TC=4'+2").

Image

Re: Introducing Igel chess engine

Posted: Sun Dec 27, 2020 7:19 pm
by voffka
Your sample size is too small :) You will need to run around 16k long time control games to get something precise, here is the run from updated regression:

http://chess.grantnet.us/test/9069/

Code: Select all

ELO   | 23.78 +- 3.56 (95%)
SPRT  | 60.0+0.6s Threads=1 Hash=64MB
LLR   | 0.00 (-2.94, 2.94) [0.00, 0.00]
Games | N: 16112 W: 4102 L: 3001 D: 9009

Re: Introducing Igel chess engine

Posted: Sun Dec 27, 2020 8:21 pm
by Sylwy
voffka wrote: Sun Dec 27, 2020 7:19 pm 1.-Your sample size is too small
2.-:)
3.-You will need to run around 16k long time control games to get something precise,
1.-I know. In fact is just the overture of my test (100 games at TC=4'+2" - 12-15 minutes per game);
2.- :wink:
3.- :lol: This is a job for CCRL, CEGT & co. My tests are just orientative. Nothing more.

Re: Introducing Igel chess engine

Posted: Mon Dec 28, 2020 9:58 am
by Jamal Bubker
Hi Volodymyr !

Thanks for the new release !
Please could you provide a windows binary of Igel 2.9.0 designed for Sandy Bridge or for westemere architecture that supports only SSE4.1, SSE4.2 and POPCNT.
My processor is a 4 cores Xeon E3-1220, 3,1 Ghz.
Thank you :)
Greetings,
Jamal

Re: Introducing Igel chess engine

Posted: Mon Dec 28, 2020 6:34 pm
by voffka
Hello Jamal,

Sure, I will send you a customized compile today by EOD via PM.

Re: Introducing Igel chess engine

Posted: Mon Dec 28, 2020 9:48 pm
by voffka
Igel 2.9.0 optimized for westemere is provided to Jamal over PM.

Re: Introducing Igel chess engine

Posted: Mon Dec 28, 2020 11:04 pm
by Jamal Bubker
Thank you so much Volodymyr :D :D