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Subject: Re: Why is SMP not standard in chessprograms?

Author: Bruce Moreland

Date: 17:21:45 09/25/01

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On September 25, 2001 at 13:29:53, Dann Corbit wrote:

>On September 25, 2001 at 10:31:17, Jonas Cohonas wrote:
>
>>In these times where more and more "regular" people get dual systems, why is it
>>then not standard for chessprograms to run on 1-x amount of processors?
>
>A tiny fraction of the people who own computers have more than one CPU.
>
>It is very difficult to get SMP right unless you are a very good programmer who
>has done it before.
>
>A SMP program will be slower on one CPU than a non-SMP program because the
>libraries have to be reentrant.

The amount of time spent in functions in the CRT is almost zero in any sensibly
designed chess program.

bruce




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