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Subject: Re: Deep Junior 8 / Junior 8 CPU Affinity Bug!

Author: Marc van Hal

Date: 16:53:07 06/04/03

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On June 04, 2003 at 18:59:04, Anson T J wrote:

>On June 04, 2003 at 18:44:37, Marc van Hal wrote:
>
>>On June 04, 2003 at 18:32:43, Amir Ban wrote:
>>
>>>On June 04, 2003 at 14:54:30, Anson T J wrote:
>>>
>>>>Has anyone noticed if you do engine matches with Junior 8 / Deep Junior 8, ZX,
>>>>YY (any of them). If you set 1 thread per engine (on a dual machine), they share
>>>>1 cpu with a net cpu usage of 50% !!
>>>>
>>>>Deep Fritz 7, Shredder 7 / 7.04 and all other SMP engines I know of don't have
>>>>this problem.
>>>>
>>>>I guess the Junior 8 engines fix the affinity of the single cpu setup meaning in
>>>>an engine match or tournament they share the same cpu instead of using one each.
>>>>
>>>
>>>Didn't think of this, damn.
>>>
>>>
>>>>Any fixes known?
>>>>
>>>
>>>The problem should come up whenever running one DJ version against another with
>>>no. of threads set to less than no. of processors. I can't think of any
>>>workaround. I should get rid of processor affinity in that case.
>>>
>>>Amir
>>
>>How come I only have 1 version of
>>which is Junior 8.001
>>Though I made a full install.
>>
>>Marc
>
>Junior 8 comes with one engine. Deep Junior 8 comes with three. Rest assure the
>Junior 8 (8.0.0.1) is the strongest version for the single cpu machines :)

.

On the box stands this

With junior8 you get two chess engines.
One is the original engine that played in the Kasparov match,
The second is the most recent,fully developed engine
This is also posted on their webpage.
It is like buying a car without airbags.
You still can drive you car but you did not recieve what you did buy.
That is again  not corect, acording the law.

Marc




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