Author: Robert Hyatt
Date: 06:24:13 01/04/00
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On January 04, 2000 at 06:20:52, Poschmann wrote: >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 Many things can be done 'in parallel'. Is there a pawn on this square, AND a pawn on that square, AND a pawn on that other square? Etc...
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