Comparison 1-, 2-, 4-, 8- and 12-Cores

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ThatsIt
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Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by ThatsIt » Wed May 27, 2015 8:58 am

Hi !

Based on the CEGT 40/4 ratinglist (2015/05/25).

Image

Best wishes,
G.S.
(CEGT member)

mjlef
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by mjlef » Wed May 27, 2015 7:09 pm

Gerhard posts the nicest plots!

Do you by chance have Stockfish 5 results? It looks like the Stockfish guys (and gals) really improved MP scaling, and it would be nice to see it visually.

Mark

cetormenter
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by cetormenter » Wed May 27, 2015 8:39 pm

mjlef wrote:Gerhard posts the nicest plots!

Do you by chance have Stockfish 5 results? It looks like the Stockfish guys (and gals) really improved MP scaling, and it would be nice to see it visually.

Mark
These improvements were mainly after Stockfish 6. So I am not sure you would see too much difference. There are some results on fastgm that show the scaling improvement beyond 8 cores.

http://fastgm.de/threads5.html

ThatsIt
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by ThatsIt » Thu May 28, 2015 6:48 am

mjlef wrote: [...snip...]
Do you by chance have Stockfish 5 results? It looks like the Stockfish guys (and gals) really improved MP scaling, and it would be nice to see it visually.

Mark
Hi Mark !

No problem.

Image

But there are rumours that they made progress
regarding SMP after the release of version 6.0 ?!

Best wishes,
G.S.

APassionForCriminalJustic
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by APassionForCriminalJustic » Thu May 28, 2015 7:33 am

ThatsIt wrote:
mjlef wrote: [...snip...]
Do you by chance have Stockfish 5 results? It looks like the Stockfish guys (and gals) really improved MP scaling, and it would be nice to see it visually.

Mark
Hi Mark !

No problem.

Image

But there are rumours that they made progress
regarding SMP after the release of version 6.0 ?!

Best wishes,
G.S.
Not rumors at all...

Stockfish 6 has quite a number of major SMP changes missing; there is no question that its scaling is far from that of the latest development version of SF. The latest development version should be tested. SF 6 doesn't even have its threads spinning 100 percent which definitely hurts performance when there are a lot of cores involved. SF 6 is old news...

ThatsIt
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by ThatsIt » Thu May 28, 2015 7:58 am

APassionForCriminalJustic wrote: Not rumors at all...

Stockfish 6 has quite a number of major SMP changes missing; there is no question that its scaling is far from that of the latest development version of SF. The latest development version should be tested. SF 6 doesn't even have its threads spinning 100 percent which definitely hurts performance when there are a lot of cores involved. SF 6 is old news...
I'll wait for a release !

Best wishes,
G.S.

ThatsIt
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by ThatsIt » Thu May 28, 2015 8:59 am

Image

whereagles
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by whereagles » Thu May 28, 2015 10:01 am

One day I'll sit down and draw some 95% confidence intervals around these values :)

IWB
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by IWB » Thu May 28, 2015 3:44 pm

Thx Gerhard,

It would be nice to have some "Oldies" to compare. E.g. Shredder, Junior, Hiarcs, Fritz (especially 13 and 14!).

Graph AND Spreadsheet!

Bye
Ingo

ThatsIt
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Re: Comparison 1-, 2-, 4-, 8- and 12-Cores

Post by ThatsIt » Thu May 28, 2015 6:01 pm

IWB wrote:Thx Gerhard,

It would be nice to have some "Oldies" to compare. E.g. Shredder, Junior, Hiarcs, Fritz (especially 13 and 14!).

Graph AND Spreadsheet!

Bye
Ingo
Hi Ingo !

That would be nice indeed, but we have no
data for the older engines with more than 4-Cores.

Best wishes,
G.S.

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