Stockfish One Thread Challenge
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Stockfish One Thread Challenge
In CCC one thread SF (NNUE) beats 250 threads Ethereal! And plays equal to 250 threads Komodo or SF classic. Definitely doubling of cores don't give 70 ELO anymore .
Jouni
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Re: Stockfish One Thread Challenge
Looking at the first event, Dragon had 37 point out of 60 vs 1 thread SF. Now I don’t know if that’s a better or worse than expected result, but it’s definitely not “equal.”
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Re: Stockfish One Thread Challenge
doubling of time, not doubling of cores. no perfect scaling
Martin Sedlak
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Re: Stockfish One Thread Challenge
Currently SF - Komodo 15,5-16,5. Quite equal. I wasn't saying anything about Dragon.
Jouni
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Re: Stockfish One Thread Challenge
I believe the machine has 128 cores. Whether using 250 threads is better than 128 threads on such a machine is questionable, probably the elo gain or lost is miniscule. So seven doublings of cores. Maybe about like four doublings of speed, i would guess.
Komodo rules!
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Re: Stockfish One Thread Challenge
Any idea what version of Ethereal it was? Guessing it was not an NNUE Ethereal? +120 elo or so.
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Re: Stockfish One Thread Challenge
An interesting comment ...
Code: Select all
Source: CCRL 40/15
Stockfish 13 64-bit 4CPU 3552 +20 −20 77.4% −183.3 45.2% 892 NNUE
Stockfish 13 64-bit 1CPU 3520 +23 −22 74.5% −168.2 49.2% 666 NNUE
Elo delta 32
Stockfish 12 64-bit 4CPU 3516 +19 −19 71.8% −140.4 56.0% 841 NNUE
Stockfish 12 64-bit 1CPU 3478 +15 −15 74.5% −164.2 48.9% 1612 NNUE
Elo delta 38
Stockfish 11 64-bit 4CPU 3478 +19 −19 73.0% −142.8 52.6% 840 Classical
Stockfish 11 64-bit 1CPU 3434 +15 −15 74.0% −156.3 49.8% 1493 Classical
Elo delta 44
Stockfish 10 64-bit 4CPU 3462 +17 −16 73.4% −155.6 50.3% 1227 Classical
Stockfish 10 64-bit 1CPU 3386 +9 −9 74.6% −168.0 46.7% 4812 Classical
Elo delta 78
Stockfish 9 64-bit 4CPU 3430 +15 −15 72.3% −153.4 50.5% 1423 Classical
Stockfish 9 64-bit 1CPU 3365 +12 −12 71.4% −149.3 49.0% 2565 Classical
Elo delta 75
Stockfish 8 64-bit 4CPU 3377 +14 −13 65.1% −96.8 62.1% 1647 Classical
Stockfish 8 64-bit 1CPU 3300 +11 −11 69.9% −131.1 53.8% 2670 Classical
Elo delta 77
There was big decline going from Sf 10 to SF11, and since then, the NNUE versions show further decline in the spread between 4CPU and 1CPU.
I certainly do not have any answers , but the sharp decline in the spread between 4CPU to 1CPU with going from SF10 to SF11 is very suspicious.
Seems to be more than simply "diminishing returns" ,which we would all expect at some point, buy why all of a sudden such a sharp drop?
Perhaps we are at now at a point now where Elo gains will be very slow going from this point forward? If we are, that is not a good thing for computer chess - as far as human play goes, we have a long way to go yet ;>), a few centuries at least. It may mark the end of Correspondence Chess (Computer Assisted, ala ICCF) as we know it today.
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Re: Stockfish One Thread Challenge
The part in red...can you explain?MikeB wrote: ↑Fri Apr 02, 2021 7:25 am
Perhaps we are at now at a point now where Elo gains will be very slow going from this point forward? If we are, that is not a good thing for computer chess - as far as human play goes, we have a long way to go yet ;>), a few centuries at least. It may mark the end of Correspondence Chess (Computer Assisted, ala ICCF) as we know it today.
Or are you trying to say that those humans with the stronger helpers and more $$ to throw at them...will be no better off really than someone with 1 core?