Stockfish 1.4, the final weapon
Posted: Sun Jul 05, 2009 9:07 pm
Hi all,
this is the link to the sources of Stockfish 1.4
http://www.mediafire.com/?dxnggmjf2nj
The main improvement of this version comes from a very deep and extended tuning of evaluation parameters, this huge job has been done mainly by one of the authors (Joona Kiisky) and I have helped him verifying new parameter's values as soon as they were ready.
We really worked well together and the result is this version that I think is nicely improved from 1.3 series.
I would like to thank Heinz van Saanen for his optimisation work on some critical low level functions and for his suggestions to improve and clean up the code.
Also a big "thank you" to Jim Ablett that has been very kind to build for us the release candidates and to help fixing some compile issues, this version is a bit tricky to compile if you want to build a pgo optimized binary for general use and Jim help was really valuable in this regards.
Finally I would like to special thank Tord Romstad, the main and original author, for his suggestions on some subtle SMP issues.
My main goal is to see Stockfish 1.4 to become the strongest open source engine to date in all hardware categories (32/64 bit, single core/SMP, the toughest will be single core 32bit where the Toga's can say something) and with a bit of luck perhaps the strongest free engine too (at least in SMP), with the notable exception of Rybka 2.3.2 that is still on another level...but we are slowly getting there.
Ok, now let's see if we survive the hype.
this is the link to the sources of Stockfish 1.4
http://www.mediafire.com/?dxnggmjf2nj
The main improvement of this version comes from a very deep and extended tuning of evaluation parameters, this huge job has been done mainly by one of the authors (Joona Kiisky) and I have helped him verifying new parameter's values as soon as they were ready.
We really worked well together and the result is this version that I think is nicely improved from 1.3 series.
I would like to thank Heinz van Saanen for his optimisation work on some critical low level functions and for his suggestions to improve and clean up the code.
Also a big "thank you" to Jim Ablett that has been very kind to build for us the release candidates and to help fixing some compile issues, this version is a bit tricky to compile if you want to build a pgo optimized binary for general use and Jim help was really valuable in this regards.
Finally I would like to special thank Tord Romstad, the main and original author, for his suggestions on some subtle SMP issues.
My main goal is to see Stockfish 1.4 to become the strongest open source engine to date in all hardware categories (32/64 bit, single core/SMP, the toughest will be single core 32bit where the Toga's can say something) and with a bit of luck perhaps the strongest free engine too (at least in SMP), with the notable exception of Rybka 2.3.2 that is still on another level...but we are slowly getting there.
Ok, now let's see if we survive the hype.