Stockfish 7

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styx
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Re: Stockfish 7

Post by styx » Wed Jan 06, 2016 3:42 pm

Look wrote:[
[...]

Why Stockfish 7 binaries and source code is not available from the official site http://stockfishchess.org/ ?
it is: http://stockfishchess.org/download/

ernest
Posts: 1912
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Re: Stockfish 7

Post by ernest » Thu Jan 07, 2016 12:41 am

zamar wrote:http://stockfishchess.org/download/ has been updated.
It contains the currently fastest known binaries for Stockfish 7.
Hi Joona,

I just downloaded the Stockfish 7 Windows binaries
from http://abrok.eu/stockfish and http://stockfishchess.org/download/

They are exactly the same !!!

Where are "the fastest binaries" ? :o :)

styx
Posts: 338
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Location: Germany

Re: Stockfish 7

Post by styx » Thu Jan 07, 2016 2:46 am

Really Dude? You received a decent gift and this is all you can say? Jim Ablett and the other compiler experts owe you nothing.

Compile it yourself if you think the abrok guy did a bad job.

ernest
Posts: 1912
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Re: Stockfish 7

Post by ernest » Thu Jan 07, 2016 3:20 am

Dude yourself !
I am just surprised...
Usually the official Stockfish is faster than the corresponding dev Stockfish.

Don't get a stroke for that !...

kaissa
Posts: 118
Joined: Fri Mar 10, 2006 10:21 pm

Re: Stockfish 7

Post by kaissa » Thu Jan 07, 2016 6:42 am

ernest wrote: Usually the official Stockfish is faster than the corresponding dev Stockfish.
I thought it was the other way around; mainly that the official Stockfish is more stable and the development versions are the ones where "what if" lines of thought are exercised.

Of course by faster you mean nps, than I have no idea.

Werewolf
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Re: Stockfish 7

Post by Werewolf » Thu Jan 07, 2016 11:00 am

I'm pretty sure SF6 had faster compliles than SF Dev.

ernest
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Re: Stockfish 7

Post by ernest » Thu Jan 07, 2016 1:38 pm

Werewolf wrote:I'm pretty sure SF6 had faster compliles than SF Dev.
I can confirm that ! :D

Jouni
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Re: Stockfish 7

Post by Jouni » Thu Jan 07, 2016 3:59 pm

In SF forum: no one didn't beat abrok compiles more than popcnt + 0.5 % and x64 + 0.7 % so no need other compiles.
But official bmi compile is 4,6 % faster! BTW why are testers running popcnt version with corei7 CPU - no bmi instructions?
Jouni

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Eelco de Groot
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Re: Stockfish 7

Post by Eelco de Groot » Thu Jan 07, 2016 4:10 pm

ernest wrote:
zamar wrote:http://stockfishchess.org/download/ has been updated.
It contains the currently fastest known binaries for Stockfish 7.
Hi Joona,

I just downloaded the Stockfish 7 Windows binaries
from http://abrok.eu/stockfish and http://stockfishchess.org/download/

They are exactly the same !!!

Where are "the fastest binaries" ? :o :)
Quoting Joona on Fishtest, there was an open challenge on building the fastest binaries, quickly after freezing the code so that the test groups could start immediately and would not have to wait. I believe I read something elsewhere on the newsgroup about the owner of Abrok having a new server so he did not have to crosscompile (from Linux presumably?).

https://groups.google.com/forum/?fromgr ... _mxqBDdwRg
Based on the results, so far, I'd say that:

- We'll go with abrok's builds
- Except for Windows x64 Hashwell where we'll use Kiran's static build.
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan

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RJN
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Re: Stockfish 7

Post by RJN » Thu Jan 07, 2016 4:31 pm

Jouni wrote:In SF forum: no one didn't beat abrok compiles more than popcnt + 0.5 % and x64 + 0.7 % so no need other compiles.
But official bmi compile is 4,6 % faster! BTW why are testers running popcnt version with corei7 CPU - no bmi instructions?
I think the microcode was disabled for BMI in some of the earlier Haswells (?)
i7-5930K @4.5GHz, H100i Hydro Cooler, 64GB DDR4 Corsair Dominator Platinum @3000MHz, ASUS X99 Deluxe mboard, 1TB EVO 850 SSD

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