TCEC 10
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Re: TCEC 10
Quite an interesting game (#2, move 54) unfolding now. Wonderfully speculative, active play by H has given him space and very active pieces, but K is 2 solid pawns up. If K can untangle...
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Re: TCEC 10
I looked to see if the Fizbo fiasco had a ripple effect on the results in round 2.
The beneficiary Booot scored the same vs the Big Three (0.5/2.0). No effect on the results of round 2.
The beneficiary Booot scored the same vs the Big Three (0.5/2.0). No effect on the results of round 2.
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Re: TCEC 10
correction:
the results were
Booot 3.0/12
K-S-H 3.0/4
same conclusion- Booot did not influence eventual outcome.
the results were
Booot 3.0/12
K-S-H 3.0/4
same conclusion- Booot did not influence eventual outcome.
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Re: TCEC 10
Well, as of now, it seems that Robert Houdart's gamble paid off !Geonerd wrote: Setting contempt too high, relative to the other engines, can cost unnecessary losses, while setting it too low costs wins.
Actually, using Contempt 2 was a Master Stroke by Houdart. If Houdini lost, he could always claim that using Contempt hurt Houdini ; if it won, nothing like it.
Personally, I've never been in favor of using Contempt 0, as it assumes that Chess is a perfectly balanced game.
But Chess, like Life, is seldom balanced.
Chess is both a Science and an Art, and it is the Art part that confounds both Human and Machine, as it cannot be quantified.
That is why, no World Champion, no matter how good his understanding of Chess, is ultimately beaten by someone else.
Quite often, playing a little aggressively and not necessarily the best move, puts the opponent (human or machine) off-balance and he/it also makes mistakes.
Of course, the key word is 'little' and going overboard with the Contempt is also a bad idea.
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Re: TCEC 10
Is TCEC server 44 Cores -> 2 x Intel Xeon E5 2699 v4 @ 2.8 GHz numa? Maybe explanation to Houdini superior speed. And why isn't hyperthreading activated (88 threads would be nice)?
Jouni
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Re: TCEC 10
Hyperthreading seems to make engines get more NPS on Epyc and Threadripper but not so much on Intel. When you double an already high core count you have way more than twice as much SMP loss also.Jouni wrote:Is TCEC server 44 Cores -> 2 x Intel Xeon E5 2699 v4 @ 2.8 GHz numa? Maybe explanation to Houdini superior speed. And why isn't hyperthreading activated (88 threads would be nice)?
So two issues:
Does not really help NPS and much heavier SMP loss (which is already quite high due to the big core count)
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Re: TCEC 10
I have both i7 and AMD Ryzen and it is my considered opinion after a lot of Testing and Gaming, that HT On does NOT help either Intel or AMD.Hyperthreading seems to make engines get more NPS on Epyc and Threadripper but not so much on Intel
The results may not be any worse, but they are certainly not any better.
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Re: TCEC 10
Houdini leads with + 3 = 9 - 0 !!!
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Re: TCEC 10
shrapnel wrote:I have both i7 and AMD Ryzen and it is my considered opinion after a lot of Testing and Gaming, that HT On does NOT help either Intel or AMD.Hyperthreading seems to make engines get more NPS on Epyc and Threadripper but not so much on Intel
The results may not be any worse, but they are certainly not any better.
Thank you Anil, for confirming something I suspected a long time ago. I have always believed that "Hyperthreading" for chess is more about Hype rather than threading (those virtual threads don't really help chess programs much, I guess you could call it "virtual elo" )
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Re: TCEC 10
Correction make that 4 white wins.Nay Lin Tun wrote:Houdini leads with + 3 = 9 - 0 !!!
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Ted Summers
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Ted Summers