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Subject: Re: pro deo destroys junior 9 why?

Author: Uri Blass

Date: 11:09:09 12/23/04

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On December 23, 2004 at 13:08:03, Uri Blass wrote:

>On December 23, 2004 at 12:07:32, chandler yergin wrote:
>
>>On December 23, 2004 at 10:27:54, Uri Blass wrote:
>>
>>>On December 23, 2004 at 10:18:45, P L Patodia wrote:
>>>
>>>>On December 23, 2004 at 01:12:44, odell jones wrote:
>>>>
>>>>>my junior loses to pro deo consistently??
>>>>
>>>>I played Pro Deo with Shredder 8 and it was consistently beating Shredder 8.
>>>>Then I checked the hash size. Pro Deo was using 128 MB. When I made it 32 MB
>>>>(the same was used by Shredder 8), Shredder 8 started beating Pro Deo. So,
>>>>please check for hash size.
>>>>
>>>>P L Patodia
>>>
>>>The difference between 128 MB and 32 MB is very small(probably only 12-14 elo)
>>>
>>>I guess that it is possible that Shredder was slowed down significantly during
>>>the match.
>>>
>>>I think that it is better not to use more than 1/8 of the available ram for
>>>engines.
>>>
>>>I remember that Igor inspite of having 256 mbytes does not use 64 mbytes per
>>>engine in the infinite loop because there are problems with it when one engine
>>>is slowed down significantly.
>>>
>>>Uri
>>  The Program splits it's time equally among the Engines.
>>Same as it does when runnning 'multiple lines'
>
>I am not sure what happens when there is no enough memory for all the
>applications that run in the computer.
>
>Windows use memory not only for the engine and if there is not enough memory one
>engine may be slowed down more than the opponent.
>
>This is the reason that I believe that using big hash is bad and it is better to
>use the same small hash.
>
>Uri

I can add that I remember games from the ssdf when Junior5 was slowed by
significant margin against Rebel8

people should suspect that the engines did not get equal conditions espacially
when they get a surprising result.

Uri
Uri



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