Stockfish 2.2.1 update available

[MM]

all games played with Littleblitzer 2.72 and 5 games pararell with 20 + 0.2 seconds, Threads=1, 128 RAM hash, without book.

but anyway "no time losses" !!!!

Yes, no time losses, i'm running a minimatch 200 games chess960 2.2.1 sse42 vs 2.1.1, TC 10'' per game, sudden death.

Shortly the results (they won't be exciting).

Regards

utente-PC, Blitz 0m 0


1 Stockfish 2.2.1 JA 64bit SSE4 +9 +50/=105/-45 51.25% 102.5/200
2 Stockfish 2.1.1 JA 64bit -9 +45/=105/-50 48.75% 97.5/200

1 core, windows 7 64 bit, fritz 13 GUI, chess960, 10'' per game s.d.

Regards

[mcostalba]

Conclusion:

SSE version is about 5% faster than the non SSE version. The Vista/W7 version has the same speed as the XP-oldlock version!

The only problem you had was to believe that the 'new' Visto/W7 is any faster than the 'oldlocks' thing.

If I where you I would replace the Vista/W7 with the oldlocks and everything is fine!

thanks for testing Ingo. I will replace with old locks version.

Is the oldlock version you tested the last one I compiled here (I've recompiled it 3 times now) >

http://dl.dropbox.com/u/5047625/stockfi ... cks-ja.zip

Jim.

This is a very valuable info. Thanks guys !

I am tempted to retire the SRW locks and leave in only OLD_LOCKS for Windows. The only thing that has kept me from doing this is that there is no a 100% one-to-one map between old and new locks and, for the way they are used, it would be more semantically correct to use the SRW locks, but if the practical result is the same I will probably retire them, with great joy of Jim that has always hated them

I just want to say that I am very happy this timing issue has been fixed. I have deeply changed the way the engine checks for remaining time, SF uses now a new way that I have never saw in any other engine and because this is a very tricky part, I paid for exploring new grounds: I hope what I have done will help people to avoid the same mistakes and to spend so much time chasing very difficult bugs.

I just want to special thank Jim that this time has _really_ supported me with countless builds and with being very patience for my multiple errors and that, at the end, has even gifted us with this SSE version that is new for him (and it took a lot of time to setup the correct build environment). Thanks Jim !

[mcostalba]

Conclusion:

SSE version is about 5% faster than the non SSE version. The Vista/W7 version has the same speed as the XP-oldlock version!

The only problem you had was to believe that the 'new' Visto/W7 is any faster than the 'oldlocks' thing.

If I where you I would replace the Vista/W7 with the oldlocks and everything is fine!

thanks for testing Ingo. I will replace with old locks version.

Is the oldlock version you tested the last one I compiled here (I've recompiled it 3 times now) >

http://dl.dropbox.com/u/5047625/stockfi ... cks-ja.zip

Jim.

This is a very valuable info. Thanks guys !

I am tempted to retire the SRW locks and leave in only OLD_LOCKS for Windows. The only thing that has kept me from doing this is that there is no a 100% one-to-one map between old and new locks and, for the way they are used, it would be more semantically correct to use the SRW locks, but if the practical result is the same I will probably retire them, with great joy of Jim that has always hated them

I just want to say that I am very happy this timing issue has been fixed. I have deeply changed the way the engine checks for remaining time, SF uses now a new way that I have never saw in any other engine and because this is a very tricky part, I paid for exploring new grounds: I hope what I have done will help people to avoid the same mistakes and to spend so much time chasing very difficult bugs.

I just want to special thank Jim that this time has _really_ supported me with countless builds and with being very patience for my multiple errors and that, at the end, has even gifted us with this SSE version that is new for him (and it took a lot of time to setup the correct build environment). Thanks Jim !

While I was writing emails at amazing chatting speeds with someone that helped me during this week, I realized that in my previous post I missed to thank all the beta testers that have really help me, every one in his way to finally push out this version and end this timing bug nightmare Thanks a lot !

[Engin]

10 minutes or seconds ?

[Graham Banks]

Hi Marco,

just wanted to say that it's fun watching Stockfish play. Very active style.

Graham.

[MM]

Hi Marco,

just wanted to say that it's fun watching Stockfish play. Very active style.

Graham.

Yes, it reminds me some ultrafast guys that move sometimes even before their turn!

[Master Om]

(updated 10-01-12)
Logo by David Dahlem
Stockfish 2.2.1 JA (UCI)
by Tord Romstad, Marco Costalba & Joona Kiiski.
http://www.stockfishchess.com/

Windows/Linux/Android 64/32

* recompile of the windows 64 bit SSE 4.2 compile with shorter internal I.D string for compatiblity with Fritz/Chessbase gui.

stockfish-221-ja.zip
Mirror:
stockfish-221-ja.zip
---------------------------------------------------------------
Official Opening Book v2.11 by
Salvo Spitaleri
Stockfish-Book.zip

JIM,
Todays update for Stockfish 2.2.1 JA SSE4.2 is not working in AMD X6 Phenom 1090T. Its just not running in cmd and In fritz engine name remains blanck.

[natasha]

updated 10-01-12

an update of update or typo


confused here sorry