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Subject: Re: AMD Opteron 275 2.20 GHz

Author: Robert Hyatt

Date: 11:03:52 08/23/05

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On August 23, 2005 at 13:55:54, Sedat wrote:

>On August 23, 2005 at 13:28:46, Robert Hyatt wrote:
>
>>On August 23, 2005 at 13:00:30, Sedat wrote:
>>
>>>Hello there,
>>>
>>>Dees anybody has any information about this processor ?
>>>I mean:
>>>-Do i need to buy 2 x processors or just one processor for running eng-matches
>>>with ponder on ?
>>>
>>
>>I used the 875 in the WCCC.
>>
>>You buy one 275, and you will have _two_ processors to use for chess.  Buy two
>>275's and you will have _four_ processors.
>>
>>Can't get any better/cheaper than that...
>
>How i understand:
>-On one AMD Opteron 275  the kns of the engines when its
>ponder on (exactly when the both engines are thinking)
>will not fall down,doesnot it ?
>
>Best,
>Sedat


It isn't so clear.  But probably not.  That is a single 275 has two 2.2ghz
procesor cores.  But only one hypertransport and memory controller.  Which means
there can be some contention between the two cores for the one path to memory.
For crafty, that was not an issue, so it probably isn't an issue for most
programs and the machine will run two programs at once, just like you had two
computers running...



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