Stockfish 7 beta 1

Discussion of anything and everything relating to chess playing software and machines.

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
beram
Posts: 1187
Joined: Wed Jan 06, 2010 2:11 pm

Re: Stockfish 7 beta 1

Post by beram » Mon Dec 28, 2015 4:48 pm

FriedmannC wrote:Great work, Bram, can you post a pgn file of the games? :D
hereby https://drive.google.com/open?id=0BzGb6 ... HdsLVdGUzA

MikeB
Posts: 3533
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Stockfish 7 beta 1

Post by MikeB » Mon Dec 28, 2015 7:22 pm

zamar wrote:Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.
If you have a Mac, the two exe's enclosed in the zip folder below will most likely be the fastest. "Hand tuned"* for the bmi2 processor, and the other for popcnt. You may have to change permissions "chmod 755" to enable it for your machine. Over 2M nps on the Mac Pro and 2.7M nps on the iMac

Stockfish for the Mac

* "Hand tuned" here means that I modified the makefile options to produce the absolute fastest exe's on my 2010 Mac Pro and and 2015 iMac Could be anywhere 10-15% faster than and standard created exe for the Mac. (ymmv).

zamar
Posts: 613
Joined: Sun Jan 18, 2009 6:03 am

Re: Stockfish 7 beta 1

Post by zamar » Mon Dec 28, 2015 8:32 pm

Thanks for a detailed report, Peter!

It's a pity that patching source code is required... But your change looks fine. Clearly this a problem with NDK, so there is not much we can do on our side.

Thanks!
Joona Kiiski

fenchel
Posts: 36
Joined: Thu Dec 04, 2014 5:01 am

Re: Stockfish 7 beta 1

Post by fenchel » Tue Dec 29, 2015 12:06 am

lucasart wrote:
mvk wrote: The "artificial" position is from a CCRL 40/4 game. (GrayMatter SVN1604 vs POS 1.20, date 2012-07-16).
POS 1.2 is rated 230 elo weaker than RAM 2.0, which is a RANDOM MOVER! So you're looking at a quality of chess worse than random moves!

The fact that these patzers cannot even mate the opponent with 4 queens should already give you a hint, don't you think ?

Clearly an artificial position.
Interesting; as Lucas is no doubt aware (but I'll say it for people less involved with software development), tools that feed random data to a program are called "fuzzers", and they are used to uncover bugs.

Maybe running depth 1 SF vs RAM could reveal some other issues?

Jouni
Posts: 2024
Joined: Wed Mar 08, 2006 7:15 pm

Re: Stockfish 7 beta 1

Post by Jouni » Wed Dec 30, 2015 8:17 am

A proposition: Can we get out of "64" in engine name now? Because it's standard nowadays so only "32" is needed!
Jouni

beram
Posts: 1187
Joined: Wed Jan 06, 2010 2:11 pm

Re: Stockfish 7 beta 1

Post by beram » Wed Dec 30, 2015 11:52 am

beram wrote:First testrun on my i5 4200M, 2 cores, 512mB hash, privat testbook 25 lines

Code: Select all

SF 7beta - - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)
1   Stockfish 7Beta1 64 BMI2   +24  +22/=63/-15 53.50%   53.5/100
2   Komodo 9.3 64-bit          -24  +15/=63/-22 46.50%   46.5/100
53,5 % out of 100games in line with earlier results of SF devs from dec 2015

Code: Select all

SF 051215 - Komodo 9.3 Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                                    
1   Stockfish 051215 64 BMI2   +21  +27/=52/-21 53.00%   53.0/100
2   Komodo 9.3 64-bit          -21  +21/=52/-27 47.00%   47.0/100

SF 141215 - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                                   
1   Stockfish 141215 64 BMI2    +7  +18/=66/-16 51.00%   51.0/100
2   Komodo 9.3 64-bit           -7  +16/=66/-18 49.00%   49.0/100

SF 201215 - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                               
1   Stockfish 201215 64 BMI2   +31  +25/=59/-16 54.50%   54.5/100
2   Komodo 9.3 64-bit          -31  +16/=59/-25 45.50%   45.5/100
a second testrun on my AMD 1090T @3200 Mhz 4cpu, (Fritzmark 16,1)
SF7 beta 59,5%

Code: Select all

SF 7beta - Komodo 9.3, Blitz 3m+2s
                               
1   Stockfish 7Beta1 64   +67  +29/=61/-10 59.50%   59.5/100
2   Komodo 9.3 64-bit     -67  +10/=61/-29 40.50%   40.5/100

Max
Posts: 242
Joined: Tue Apr 13, 2010 8:41 am

Re: Stockfish 7 beta 1

Post by Max » Wed Dec 30, 2015 1:00 pm

MikeB wrote:If you have a Mac, the two exe's enclosed in the zip folder below will most likely be the fastest. "Hand tuned"* for the bmi2 processor, and the other for popcnt. You may have to change permissions "chmod 755" to enable it for your machine. Over 2M nps on the Mac Pro and 2.7M nps on the iMac

Stockfish for the Mac

* "Hand tuned" here means that I modified the makefile options to produce the absolute fastest exe's on my 2010 Mac Pro and and 2015 iMac Could be anywhere 10-15% faster than and standard created exe for the Mac. (ymmv).
Hi Michael,

thanks a lot for your compiles, I appreciate them very much!
On my Macbook did just "make profile-build ARCH=x86-64-modern COMP=gcc“ and get this bench result:

Code: Select all

$ ./stockfish bench > /dev/null 
===========================
Total time (ms) : 4035
Nodes searched  : 8355485
Nodes/second    : 2070752
Your binary is only about half the size :!: , but not faster on my system (core i7 3615qm):

Code: Select all

$ ./stockfish-7-beta-popcnt bench > /dev/null 
===========================
Total time (ms) : 4078
Nodes searched  : 8355485
Nodes/second    : 2048917
May I ask, which compile options did you change in the Makefile?

-Max
Hope we're not just the biological boot loader for digital super intelligence. Unfortunately, that is increasingly probable - Elon Musk

zamar
Posts: 613
Joined: Sun Jan 18, 2009 6:03 am

Re: Stockfish 7 beta 1

Post by zamar » Wed Dec 30, 2015 2:13 pm

Stockfish 7 beta 2 is out:

It corrects the following problems:
- Infinite loop when searching in position: 7k/QQQQR3/2B5/4KN1Q/3QQ3/8/8/4R3 b - - 0 1
- Correction for Trace scores for pawns
Joona Kiiski

beram
Posts: 1187
Joined: Wed Jan 06, 2010 2:11 pm

Re: Stockfish 7 beta 1

Post by beram » Wed Dec 30, 2015 10:21 pm

beram wrote:
beram wrote:First testrun on my i5 4200M, 2 cores, 512mB hash, privat testbook 25 lines

Code: Select all

SF 7beta - - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)
1   Stockfish 7Beta1 64 BMI2   +24  +22/=63/-15 53.50%   53.5/100
2   Komodo 9.3 64-bit          -24  +15/=63/-22 46.50%   46.5/100
53,5 % out of 100games in line with earlier results of SF devs from dec 2015

Code: Select all

SF 051215 - Komodo 9.3 Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                                    
1   Stockfish 051215 64 BMI2   +21  +27/=52/-21 53.00%   53.0/100
2   Komodo 9.3 64-bit          -21  +21/=52/-27 47.00%   47.0/100

SF 141215 - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                                   
1   Stockfish 141215 64 BMI2    +7  +18/=66/-16 51.00%   51.0/100
2   Komodo 9.3 64-bit           -7  +16/=66/-18 49.00%   49.0/100

SF 201215 - Komodo 9.3  Blitz 3m2s     i5 4200M @2500Mhz, 2 cpu (Fritzmark 5,1)                               
1   Stockfish 201215 64 BMI2   +31  +25/=59/-16 54.50%   54.5/100
2   Komodo 9.3 64-bit          -31  +16/=59/-25 45.50%   45.5/100
a second testrun on my AMD 1090T @3200 Mhz 4cpu, (Fritzmark 16,1)
SF7 beta 59,5%

Code: Select all

SF 7beta - Komodo 9.3, Blitz 3m+2s
                               
1   Stockfish 7Beta1 64   +67  +29/=61/-10 59.50%   59.5/100
2   Komodo 9.3 64-bit     -67  +10/=61/-29 40.50%   40.5/100
A third run on the AMD 1090T @3200 Mhz 4cpu, (Fritzmark 16,1) with TCEC7 finalbook, SF7beta 54,69%

Code: Select all

SF 7beta - Komodo 9.3, Blitz 3m+2s
                               
1   Stockfish 7Beta1 64   +33  +14/=42/-8 54.69%   35.0/64
2   Komodo 9.3 64-bit     -33  +8/=42/-14 45.31%   29.0/64

MikeB
Posts: 3533
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Stockfish 7 beta 1

Post by MikeB » Thu Dec 31, 2015 7:21 am

Max wrote: Hi Michael,

thanks a lot for your compiles, I appreciate them very much!
On my Macbook did just "make profile-build ARCH=x86-64-modern COMP=gcc“ and get this bench result:

Code: Select all

$ ./stockfish bench > /dev/null 
===========================
Total time (ms) : 4035
Nodes searched  : 8355485
Nodes/second    : 2070752
Your binary is only about half the size :!: , but not faster on my system (core i7 3615qm):

Code: Select all

$ ./stockfish-7-beta-popcnt bench > /dev/null 
===========================
Total time (ms) : 4078
Nodes searched  : 8355485
Nodes/second    : 2048917
May I ask, which compile options did you change in the Makefile?

-Max
Hi Max,

For gcc , try this on your machine

Code: Select all

Section 3.9: CXXFLAGS +=-flto -O2 -mtune=native -mssse3 -mpopcnt -DUSE_POPCNT
and comment out -flto in section 3.11 below. When you profile, -flto should be in front of the profile options so as you don't overrule pgo with flto. Generally speaking, when you profile on your own machine, they will be the fastest exe's for obvious reasons.

With respect to the exe size, I'm using the compressor upx
I then added an alias to the bash_profile:

Code: Select all

alias upxl="/applications/upx/./upx2 --lzma"  
(renamed upx to upx2)
so from anywhere, when i compile stockfish or crafty, I can compress the exe by typing:

Code: Select all

upxl <filename> -o <output-filename>
There is no loss in speed and it saves bandwidth/hardrive space

Post Reply