Hello all
i am interested to see how much Assembler is really worth compared to an optimized C-compile. Therefore I am looking for the fastest SF8 compile (original release code). I am only interested in a real SF8 C-compile, not ASM fish.
Anyone with a link for me?
Thanks
Ingo
Fastest SF8 compile?
Moderators: hgm, Rebel, chrisw
-
- Posts: 33
- Joined: Sat May 21, 2016 9:45 am
Re: Fastest SF8 compile?
You can use SF BYO to compile your own executable specifically for your machine
-
- Posts: 1539
- Joined: Thu Mar 09, 2006 2:02 pm
Re: Fastest SF8 compile?
That doesn't work for my purpose because someone could optimise the asm code as well ...
I need a (few) general purpose SF8 C compiles with POPCNT. I like to check them on my hardware and will choose the fastest one.
Thanks anyhow
Ingo
I need a (few) general purpose SF8 C compiles with POPCNT. I like to check them on my hardware and will choose the fastest one.
Thanks anyhow
Ingo
-
- Posts: 134
- Joined: Thu Jul 24, 2014 2:49 pm
Re: Fastest SF8 compile?
I compiled the bmi2 version of sf_8 on my own and the binary provided on stockfishchess.org was faster than mine. I think the same applies to the modern version. I do not think there is much room left for improvement. Kiran did a pretty good job back then.
-
- Posts: 2439
- Joined: Sat Sep 03, 2011 7:25 am
- Location: Berlin, Germany
- Full name: Stefan Pohl
Re: Fastest SF8 compile?
I think so, too. Normally I use the pocount-compiles of I.Ivec (ultimaiq-compiles) http://chess.ultimaiq.net/stockfish.html for my Stockfish-Bullet testruns. For the Stockfish 8 testrun, I used the official popcount compile from stockfishchess.org. No big difference in nps as far as I remember. The official SF8-compiles from stockfishchess.org are pretty fast.pferd wrote:I compiled the bmi2 version of sf_8 on my own and the binary provided on stockfishchess.org was faster than mine. I think the same applies to the modern version. I do not think there is much room left for improvement. Kiran did a pretty good job back then.
-
- Posts: 3291
- Joined: Wed Mar 08, 2006 8:15 pm
Re: Fastest SF8 compile?
Fastest I have tried is Kiran Panditrao's exe with additional dll-files. But I prefer one file version more.
Jouni
-
- Posts: 1539
- Joined: Thu Mar 09, 2006 2:02 pm
Re: Fastest SF8 compile?
Hello all
Thanks for your your proposals and help. I tried a couple of different compiles and the original one seems to be quite good!
It seems that the difference between a modern C++ compiler and an ASM version is worth about 20 Elo. My personal feeling is that this is respectable but not revolutionary.
Thanks again
Ingo
Thanks for your your proposals and help. I tried a couple of different compiles and the original one seems to be quite good!
It seems that the difference between a modern C++ compiler and an ASM version is worth about 20 Elo. My personal feeling is that this is respectable but not revolutionary.
Thanks again
Ingo