Author: Vincent Diepeveen
Date: 23:58:53 07/14/01
Go up one level in this thread
On July 14, 2001 at 09:27:57, James T. Walker wrote: >On July 14, 2001 at 09:13:11, Steve Maughan wrote: > >>Werner, >> >>I suspect that it's something to do with the lack of cache on the iPaq. I >>imagine that Bob could make it faster if he optimised it for this platform. >>Genius for the PocketPC is faster and, as a result, stronger than Crafty for the >>PocketPC. I would also think that Pocket Fritz will be faster than 10 kn/s >> >>Regards, >> >>Steve Maughan >> >>>Hi, >>>from featchers txt for pocketcrafty I read that pocketcrafty reaches about 5000 >>>- 10000 nps on ipaq 206 mhz. On my PC with 650 MHz crafty reaches around 300k >>>nps. When I reduce speed to 200MHz on the start position I can see 80 000 nps. >>>Where comes this difference (10 times more)? >>>Werner > >Hello Steve, >From what I know, cache does not make any difference on NPS, only on speed >through the plies. >Jim Without L2 cache todays processors would be factor 10 slower or so. L1 and L2 cache are very crucial parts of the processor nowadays. At the Pentiumpro200Mhz processor one could easily turn off L2 cache. At that processor it was already a factor 4 when turning off L2 cache. At 1Ghz the importance is another 5 times more.
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