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Subject: Re: Why Does AMD out perform The Pentium Processor in Chess Only?

Author: Matt Taylor

Date: 17:30:43 12/31/02

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On December 31, 2002 at 19:44:51, Bob Durrett wrote:

>On December 31, 2002 at 18:40:13, Dan Andersson wrote:
>
>>There are a few tricks available before we need use future tech. The caches can
>>be made more efficient by using assymetric mappings. And caching on ram and in
>>the memory controllers are relatively unused.
>>
>>MvH Dan Andersson
>
>That sounds really good!  At the risk of getting an answer I will not
>understand, let me ask anyway:  How would current chess engine code be changed
>to take advantage of:
>
>(a) asymmetric mappings,
>
>(b) caching on ram, and
>
>(c) caching in the memory controllers?
>
>You may wish to address this to the computer programmers, since THEY will be the
>ones who will write the new chess engine code.  [i.e. use "pseudo code,"
>etceteras]

Caching is invisible to software. The operating system usually doesn't worry
about the cache, though in some rare cases it needs to.

-Matt



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