Author: Laurence Chen
Date: 20:19:37 02/17/00
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On February 17, 2000 at 22:26:24, ShaktiFire wrote: >On February 17, 2000 at 21:36:35, ShaktiFire wrote: > >>> >> 1. Rebel is a top program gaining a rating of 2480-2490 on a single >> processor. >> >> 2. Quad gives about 1 extra ply which is supposedly 70 pts against computers >> and I say 30 - 50 pts. against GM's. >> >> >I guess I need to be more precise on this statement above. > >Let me modify 2. > > 2. Quad give about 3.75 times more speed than single processor. > According to latest SSDF statement the increase from 200 mhz > to 450 mhz leads to average increase of 79 pts. computer vs > computer. Linear extrapolation then implies 132 pt increase > when running quad instead of single cpu in computer vs. computer. > > However, I sincerely doubt we get that much rating increase > when playing a GM. I will stand with my earlier guess of gaining > 30 - 50 pts. against a GM. You are still missing the whole point and I still think that your comparison is wrong. You are measuring a single processor and assuming that in a quad processor machine it will compute the same way in a single processor machine. Quad processors allow for Parallel Processing, which is much more efficient than a single processing. Just because there's an increase of 3.75 times in speed, the way how the information is processed makes a huge difference. So the increase in plies may not be much, but the search area can be increased and sped up consiredably. Also the available number of resources is much greater in a quad processor than in the single processor. Laurence
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