Author: Miguel A. Ballicora
Date: 11:08:49 04/03/02
Go up one level in this thread
On April 03, 2002 at 13:27:44, Robert Hyatt wrote: >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... Using your factor (1.7) a dual celeron (not even a pIII) 1 Ghz would be as efficient than a p4 2.465 Gghz according to http://speedycpu.dyndns.org/crafty/craftybench.jpg that was posted today. Therefore, I think that a 2x pIII 1.0 Ghz would be better than a p4 2.2 Gghz. If the dual is 1.2 Ghz, then the difference would be significant. Miguel
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