Author: Robert Hyatt
Date: 10:27:44 04/03/02
Go up one level in this thread
On April 03, 2002 at 12:39:38, Uri Blass wrote: >On April 03, 2002 at 11:28:21, Robert Hyatt wrote: > >>On April 02, 2002 at 05:42:06, Tanya Deborah wrote: >> >>> >>> >>> >>>Hello CCC ! >>> >>> >>>A new match will be played very soon. GM Ilya Smirin (2703) will play against >>> >>>ChessTiger, Hiarcs, Junior and Shredder with the same conditions that Gulko >>>played (same time too). >>> >>> >>>Look : >>> >>> All programs are the latest and greatest versions, as submitted and supervised >>>by their authors and accompanied with special opening preparation. Hardware: >>>Dual Pentium Intel 1 GHz 750 MB RAM (or faster) for the multi processors (Junior >>>Shredder), P2 2.2 GHz for single processors (Hiarcs, Tiger). >> >>Your hardware doesn't make a lot of sense. Why not play _all_ four using >>the 2.2ghz processor? That is significantly faster than a dual 1ghz machine... > >I think that you missed the words "or faster" > >*Dual 1 Ghz or faster* is not slower than 2.2 Ghz. For Crafty, the performance of a dual is 1.7x the speed of a single processor. I didn't read "or faster" to mean "or a _lot_ faster". The processors (on the dual) would need to be at least 1.4ghz each to match the 2.2ghz single. And I would _still_ prefer the single... > >I am also not sure if dual 1 Ghz is slower than 2.2 Ghz. I +know+ it is slower. Because of search overhead. There is no way to avoid searching extra stuff in a parallel search that is not searched in a serial search. And that hurts... >It is slower if you assume that the speed is proportional to the number of Ghz. > >I know based on previous discussions that there was a big disappointment from >the pIV machines and >I understood that the PIV is significantly slower with the same Ghz so I assume >nothing based on only reading the Mhz. > >Uri
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