new version: rofChade 3.1

[peter]

Thanks for the new version!

2 matches at 3'+1" single thread (3.5GHz) with UHO 6mvs 110-119cp openings (SPCC):

Score of rofChadeBMI2AVX2 vs igel-x64_bmi2_avx2_3_5_0: 149 - 96 - 255 [0.553]
Elo difference: 37.0 +/- 21.3, LOS: 100.0 %, DrawRatio: 51.0 %
500 of 500 games finished.

Score of Chess-System-Tal-2.00-v21-E1019-Elo.opt-avx2 vs rofChadeBMI2AVX2: 135 - 90 - 275 [0.545]
Elo difference: 31.4 +/- 20.4, LOS: 99.9 %, DrawRatio: 55.0 %
500 of 500 games finished.

[Dann Corbit]

Merci beaucoup.

[Wolfgang]

It's been a while, but I've finally managed to create a new rofChade version, 3.1

After multiple nn architecture experiments, this version uses a (2x768)x8x1 architecture, trained with around 10B positions with multiple recalculations during the last 1,5 year. This version also has multiple search changes, other hashtable structure and some other tweaks.

Many thanks go to Ipmanchess and Frank Quisinsky who have tested multiple intermediate versions.

And thanks to everybody who likes computer chess!

The version can be downloaded from the download section of the rofChade website. I've created versions for Windows, Linux, RPI and Apple Silicon.

https://rofchade.nl/?page_id=7

https://cegt.forumieren.com/t1990-testi ... hade-3-1nn
+65 so far, balanced openings (5 full moves)

[bastiball]

+121 elo in FRC

[pocpit]

None of the compilations you provide work on my oldie Intel Core i5.

Any chance to make a compilation for old linux systems?

[Guenther]

None of the compilations you provide work on my oldie Intel Core i5.

Any chance to make a compilation for old linux systems?

read here (from the same thread)
viewtopic.php?f=2&t=82649#p952954

[Ronald]

I have created an SSSE3 version and SSE2 version for both Windows and Linux. The versions are included in the download zip on rofchade.nl, so they can be downloaded now.

I can't test them on an older CPU myself, so I hope they will work correctly.

Ronald

[Guenther]

I have created an SSSE3 version and SSE2 version for both Windows and Linux. The versions are included in the download zip on rofchade.nl, so they can be downloaded now.

I can't test them on an older CPU myself, so I hope they will work correctly.

Ronald

The SSE2 version works here, thanks.
The SSSE3 version has probably popcnt included too, that's why it fails too run on my old quadcore I guess.

[chessica]

I have created an SSSE3 version and SSE2 version for both Windows and Linux. The versions are included in the download zip on rofchade.nl, so they can be downloaded now.

I can't test them on an older CPU myself, so I hope they will work correctly.

Ronald

Hi Roland, thank you very much for this version. It works very well on my PC and is significantly better than version 3.0.

[Ronald]

The SSE2 version works here, thanks.
The SSSE3 version has probably popcnt included too, that's why it fails too run on my old quadcore I guess.

That was a stupid mistake. Hardware popcount support somehow feels much older, but actually it was introduced with SSE4.2...

I've created yet another SSSE3 version with software popcount compile. This version is again downloadable from rofchade.nl (maybe a refresh of the page is needed. Hopefully they all work now.

Ronald