Automated tuning... finally... (Topple v0.3.0)

[konsolas]

It's been a long while since I last updated Topple, but I've finally rewritten the evaluation and implemented Texel tuning with a simple linear search: self play shows an elo gain of about +150.

The release can be found here: https://github.com/konsolas/ToppleChess ... tag/v0.3.0
I've provided 3 builds for windows, but it should be easy to build from source on Linux and macOS with CMake (you may need to remove the -static flag for clang on MacOS to work).

It would be awesome to find out how the new Topple performs against other engines

[Graham Banks]

Wow! Nice improvement.

[CMCanavessi]

Nice! I'll run a gauntlet in a couple of days.

[konsolas]

Thanks

I've also released v0.3.1 which now supports multithreading with Lazy SMP, although I'm not sure about the strength gain (if any): https://github.com/konsolas/ToppleChess ... tag/v0.3.1

[Scally]

Thanks, however I can’t compile it on a raspberry pi as cmake is at version 3.7.2 and your engine requires 3.8 or higher.
I’ve tried updating it, to no avail.

Al.

[konsolas]

Thanks, however I can’t compile it on a raspberry pi as cmake is at version 3.7.2 and your engine requires 3.8 or higher.
I’ve tried updating it, to no avail.

Al.

Could you try changing cmake_minimum_required from 3.8 to 3.7 at the top of CMakeLists.txt? I don't think I'm using any CMake 3.8 specific features at the moment.

[Scally]

Hi,

Yes that created a Makefile but I get pages of errors on make. (Linux Raspberry Pi)

Are there any windows specific options that I need to take out anywhere?

Thanks,

Al.

[konsolas]

Hi,

Yes that created a Makefile but I get pages of errors on make. (Linux Raspberry Pi)

Are there any windows specific options that I need to take out anywhere?

Thanks,

Al.

The code is mostly platform independent, with the exception of some functions in bb.h (see namespace bb_intrin), which has preprocessor directives to select POPCNT and bitscan intrinsics, depending on which compiler is being used. Perhaps they are not available on raspberry pi?

[MikeB]

Hi,

Yes that created a Makefile but I get pages of errors on make. (Linux Raspberry Pi)

Are there any windows specific options that I need to take out anywhere?

Thanks,

Al.

Al - try this (the two steps below after the $ sign) , using this CMakeLists.txt - did not test the Pi , but it worked on Mac

Code: Select all

Mac-Pro:ToppleChess-0.3-2.0 xxxx$ cmake -H. -Bbuild

Mac-Pro:ToppleChess-0.3-2.0 xxxx$ cmake --build build -- -j3

[Scally]

Hi Michael,

Thanks for the suggestions but I’m still getting pages or errors.

Could you try it on your RPi please?

Thanks,

Al.