Introducing Igel chess engine

[voffka]

Just tested Igel 3.0.5 NNUE _bmi2_avx2_3_0_5.exe on my brother's AMD Ryzen 9 3900x

For AMD I think you need to try the popcount build instead (igel-x64_popcnt_avx2_3_0_5.exe) because AMDs are well known to be a bit slower on BMI2.

[AlexChess]

Just tested Igel 3.0.5 NNUE _bmi2_avx2_3_0_5.exe on my brother's AMD Ryzen 9 3900x

For AMD I think you need to try the popcount build instead (igel-x64_popcnt_avx2_3_0_5.exe) because AMDs are well known to be a bit slower on BMI2.

AMD Ryzen 9 3900x ATI + AMD RADEON PRO WX7100 + 32GB BM2 24 CPUs


AMD Ryzen 9 3900x + AMD RADEON PRO WX7100 + 32 GB POP 24 CPUs


SILICON M1 8 CPUs


I have restarted PC and engines.. now AMD gives me less speed on starting position (+- 16 mN /S)

Mac mini Silicon M1 isn't bad with 8 CPUs for 700$ against a 2000$ PC

[AlexChess]

Just tested Igel 3.0.5 NNUE _bmi2_avx2_3_0_5.exe on my brother's AMD Ryzen 9 3900x

For AMD I think you need to try the popcount build instead (igel-x64_popcnt_avx2_3_0_5.exe) because AMDs are well known to be a bit slower on BMI2.

IGEL 3.0.0 and IGEL 3.0.5 NNUE Windows 10 NEON ARM64 against almost all best chess engines

Arena 3.5.1 Windows 10 4CPUs 3.5 mN/s under Windows Parallels M1

[AlexChess]

Igel 3.0 NNUE performance on Ubuntu Linux 20.04 ARM64 4CPUs +- 4 mN/s



(Including Pedone 3.0 that works only with Linux on my Mac mini M1 and waiting MikeB 13.1 and other updated engines)
Regards, AlexChess

[bastiball]

Mr. Voff

I compile the Igel and it's working but how do I know if the NNUE is working?

[voffka]

Hello there,

Mr. Voff

I compile the Igel and it's working but how do I know if the NNUE is working?

Best way is to run Igel bench, e.g., execute igel with bench command line:

igel.exe bench

and make sure NODES count is equal to 3997125 (for Igel 3.0.5)

[bastiball]

Hello there,

Mr. Voff

I compile the Igel and it's working but how do I know if the NNUE is working?

Best way is to run Igel bench, e.g., execute igel with bench command line:

igel.exe bench

and make sure NODES count is equal to 3997125 (for Igel 3.0.5)

Hello mr. Voff

Version 2.7 below does run bench and 2.8 up to new version doesn't run bench and I uses popcnt-avx2 binaries can you explain why is that?

[Rebel]

Running Igel 3.0.5 for the gambit 40/15 rating list. So far Igel (192/500 games) gained almost 30 elo. You can follow it live at:

http://rebel13.nl/a/grl.htm

[Rebel]

Gauntlet Igel 3.0.5 --> +37.8 elo

Details.

[voffka]

Hello bastiball,

Version 2.7 below does run bench and 2.8 up to new version doesn't run bench and I uses popcnt-avx2 binaries can you explain why is that?

All last five (or so) versions of Igel support bench. It's just that for Igel 2.7 and Igel 2.8 you had to click on Igel app and inside the console type the word bench. On latest Igel 3.0.0 and Igel 3.0.5 you need to pass the word bench into command line, for example:

igel.exe bench