Winboard Forum

Hi there,

There is a new version of Goyaz, available in Goyaz's site!

It is a lot better then the previous one (something like +130 Elo )

The main changes:

- New evaluation function: the previous one was just PC/SQ tables;
- Transposition Table can be resized: up to 128M positions;
- Fixed bug in transposition table and in the tournament-like time controls (thaks to Guenther Simon for this last one);
- Null-moves and a change in the quiescense search reduced the number of nodes searched;
- Resign: Goyaz can now resign lost games (this one is really good for speeding up tournaments).

I am not sure if you are aware of the problem. Leo Djiksman is having some wild problems with the new version of Goyaz and he has taken the engine out of his tournaments until further update.

Tony Thomas wrote:Leo Djiksman is having some wild problems with the new version of Goyaz

Is Goyaz finding stalemate where there is none, such as in the first few moves?

Olivier Deville has found this bug and it occurs in computers that have more than 1 CPU/core. It seems that some compiler option is wrong, making Goyaz's internal boards update themselves out of order...

However, I only have computers with 1 CPU/core to test my engine, so I don't know if the compiler options are the real problem.

If you have a computer with more than 1 CPU/core, please test this .exe instead of the version 6 you downloaded from the site:
http://wferreirajr.googlepages.com/goyaz6b.zip

If it works, then the problem is just the compiler options and I will publish this version. If not, well, back to square one...

Yes, he is experiencing the problem that you mentioned. May be you should post this message at WBEC forum, I dont have a computer with more than 1 CPU.

Wander Ferreira Jr wrote:

Tony Thomas wrote:Leo Djiksman is having some wild problems with the new version of Goyaz

Is Goyaz finding stalemate where there is none, such as in the first few moves?

Olivier Deville has found this bug and it occurs in computers that have more than 1 CPU/core. It seems that some compiler option is wrong, making Goyaz's internal boards update themselves out of order...

However, I only have computers with 1 CPU/core to test my engine, so I don't know if the compiler options are the real problem.

If you have a computer with more than 1 CPU/core, please test this .exe instead of the version 6 you downloaded from the site:
http://wferreirajr.googlepages.com/goyaz6b.zip

If it works, then the problem is just the compiler options and I will publish this version. If not, well, back to square one...

Hi Wander

I have just tried it on my Dual Opteron. Unfortunately the bug is still there

Olivier

Olivier Deville wrote:I have just tried it on my Dual Opteron. Unfortunately the bug is still there

Thanks! I will continue to search for this bug...