Author: KarinsDad
Date: 16:32:42 01/28/99
Go up one level in this thread
On January 28, 1999 at 18:39:04, Bertil Eklund wrote: >On January 28, 1999 at 12:21:35, Enrique Irazoqui wrote: > >>On January 28, 1999 at 12:07:44, KarinsDad wrote: >> >>>I've noticed a rating increase from the Pentium 90 MHz to the P200 MMX (as >>>expected). This implies that a doubling of the speed (plus bus improvements, >>>minus hash table changes, etc.) results in approximately 70 points in increased >>>rating as per the derived chart below (these being based on a x2.2). >> >>It is more like a 3x between a P200MMX and a P90, which means than doubling the >>speed translates into some 50 points more. >When we upgraded to P200MMX from P90 I run a test with about ten programs snd >the average speed-increase was 2,4x. I was wondering if an increase in the hash table size (which seems to often be the case on the P200MMX) would offset some of the speed improvements with the bus and processor. So at 2.4x, we would have an average of about 65 rating points (rough guess) per doubling (other things being equal). Are the nodes per second used to calculate the increase in speed or is some other metric used? If nodes per second, do those totals include re-searches (I would assume so)? KarinsDad > I also checked the difference with 256k >cache and 512k the difference was just over 1% (from 0-3%). > We are just now testing P2-450, Celeron450 and AMD to find out the speed >improvement vs P200MMX. Several programs are about twice as fast but Nimzo98 >is nearly 3 times faster! (P2-450) > >Bertil >>Enrique >> >>>Inc. Program >>>87 Hiarcs 6.0 >>>82 Rebel 9.0 >>>70 Rebel 8.0 >>>91 MChess Pro 6.0 >>>69 Genius 5.0 DOS >>> >>>Does anyone have a more detailed list of this type of information? >>> >>>How do the non-commercial programs fair in this regard? >>> >>>Is there any sort of curve associated with this from previous years (i.e. is the >>>rate of this increase decreasing from previous years/earlier processors, or is >>>the rate of increase remaining somewhat constant)? >>> >>>Has anyone done any work in increasing the time per move in order to emulate >>>future processor types? >>> >>>Robert Hyatt has mentioned in a earlier post that on his quad, Crafty is running >>>at approximate 1600 Mhz equivalence. Does this mean that Crafty run there is >>>about 210 points higher (8x faster = 2^3 or 3x rating point increase) in rating >>>strength than Crafty running on a P200 MMX? Or is the rating difference >>>considerably less than that? >>> >>>Thanks >>> >>>KarinsDad
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