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Subject: Re: Using a dual processor system

Author: Jason Williamson

Date: 17:17:54 09/20/00

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On September 20, 2000 at 15:33:12, Robert Hyatt wrote:

>On September 20, 2000 at 14:20:09, Gordon Rattray wrote:
>
>>I'm considering buying a dual processor system (dual PIIIs).  What sort of
>>things should I be aware of?  Here's my thoughts...
>>
>>- I presume that at the moment I can only run Deep Junior in order to use both
>>CPUs for the one engine simultaneously.  Does DJ achieve 1.8 efficiency while
>>using a dual system?  Are there other distributed engines available?
>
>There are several, including Crafty.  Diep.  Etc.


Not that many, Crafty, Diep, Amy, Deep Junior.  After that, I can't think of any
more.

JW
>
>
>>
>>- within the Fritz interface, I expect to be able to use multiple kibitzers and
>>benefit from the dual CPUs.  Assuming there is enough memory, is this equivalent
>>to having two separate machines each with one of the CPUs?
>>
>>- for the "compare analysis" functionality, and selecting Fritz, Junior, Nimzo,
>>etc., will I benefit?  Or do I need to run two instances of the interface?
>
>I doubt the interface knows beans about threads.  This means you will have to
>run two instances to get two programs running at the same time.
>
>
>
>
>>
>>- I should be able to support engine matches/tournaments with pondering on.
>>
>
>yes.
>
>>
>>These are some of the things I've been thinking about while considering a dual
>>processor system.  Although I have other motives, e.g. running a multi-threaded
>>compiler, I'd like to know more about using it for chess programs.  I'd
>>appreciate any comments/advice on this.
>>
>>Gordon
>
>
>I know of no multi-threaded compilers (ie a compiler that will use two cpus
>to compile a single source module).  The usual "make" under linux will use
>multiple cpus to compile different source modules at the same time.



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