Author: Uri Blass
Date: 06:40:45 06/02/04
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On June 02, 2004 at 09:17:45, Jorge Pichard wrote: >On June 02, 2004 at 09:13:03, Uri Blass wrote: > >>On June 02, 2004 at 09:00:53, Ricardo Gibert wrote: >> >>>On June 02, 2004 at 08:40:55, Uri Blass wrote: >>> >>>>I plan to buy a cheap computer with 2 processors dual PIII1000 Mhz for testing. >>>>I will probably also buy more expensive computer for WCCC with one processor >>>>when I may use the cheap computer for testing with ponder on. >>>> >>>> >>>>I still did not buy it and before buying it I have a question. >>>> >>>>The question is if I can tell the program which processor to use or tell the >>>>program to choose automatically one of them when I have no control about it. >>>> >>>>Another question is if I can be sure that the processors are of equal speed(if >>>>they are not of equal speed then the question which processor the program is >>>>using may be important. >>>> >>>>Can I be sure that one 1 Ghz is not 1.01ghz when the second 1ghz is 0.99 ghz? >>>> >>>>Uri >>> >>>This would make make one processor a little over 1.02 times faster for a less 3 >>>elo advantage if it assumed that each doubling of speed is worth 100 elo. To >>>resolve such a difference in your testing would require an obscene number of >>>games. In other words, it's not relevant. >> >>I agree that it is not a big difference but if there is a simple way to avoid >>noise it is better to do it and I prefer to be able to control the processor >>that the program is using so I do not care about difference in speed when I >>always use processor A for movei and processor B for the opponents. >> >>Uri > >Since the difference in speed if there happens to be a significant difference is >so minimal, simply switch from processor A for Movei to processor B to the >Opponent and vise versa after half way of your testing. > >Jorge This is exactly the question if I can define which processor to use for every program. Uri
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