Author: Poschmann
Date: 03:20:52 01/04/00
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On January 03, 2000 at 14:58:04, Bruce Moreland wrote: >On January 03, 2000 at 13:03:46, Bango wrote: > >>However; to us technophobes, it seems reasonable that a 64 bit bus can send >>double the information as well a 64 bit CPU can calculate twice as fast. For >>example look at the SEGA games which run on 64 bit systems, the graphics are >>amazing, much nicer than a home computer. >> >>IMHO if a computer software program runs better on 32 bits than 16 bits it seems >>reasonable that 64 bits will increase speed and quality even more. > >If you are trying to get drunk, you may be able to do it more quickly if the >opening in the top of the beer bottle is larger. But beyond a certain point it >does not matter how much larger the opening is, since the mouth of everyone >except Mick Jagger is of finite and typical size. If you put a pint of beer in >a salad bowl you can't drink it any faster than if you put it in a five gallon >bucket. > >I am not a graphics programmer, but I think that the reason that the graphics >app work better with a wider word size is that those things want to do a lot of >calculations on wide words, and want to move a tremendous amount of data around >as fast as possible. > >Chess programs don't benefit as much from the wide bus. > >bruce In image or graphic processing you must do many operations with each pixel in the same way. If you have a 64-Bit-processor you can load, calculate and store 8 8-Bit-pixels at once. For example you can use MMX instructions in the Pentium processor. I dont know, if there is a possibility to do chess calculations in the same way in parallel. I suspect it is difficult or impossible because many operations depend on if/then/else conditions before. Ralf
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