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Subject: WAIT A SECOND - just what is going on here?

Author: Ed Murak

Date: 13:39:27 12/07/05

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At http://www.talkchess.com/forums/1/message.html?467829 you collated these
results -

...
124651 = AMD Opteron 275, 2.2ghz, 32 bit (WIN x64)
124651 = Athlon 64 3500+ 2.2GHz 32 bit
...
110801 = Pentium-M 2.0GHz 32 bit
110801 = Pentium 4, 3.6 ghz,560 Prescott, 32 bit (WIN/XP)
110801 = Athlon 64 3200+ 2GHz 32 bit
...

Does it not seem a little strange that the precisely, exactly same "nps" is
reported for widely-differing CPUs (Athlon and Pentium 4 and Pentium M, say)?

In just 17 results, 3+2=5 exact collisions with such big numbers involved is
beyond a coincidence.

Is there some granularity in the test that we don't know about?  If not, is
"nps" reported always inversely proportional to "time" reported, for the same
initial conditions and 3988843 node count? If not, would "time" be a better
measure?

I am confused.



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