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Subject: Re: Quad scaling ?

Author: Thomas Logan

Date: 09:22:43 08/25/05

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On August 25, 2005 at 10:37:32, Vincent Diepeveen wrote:

>On August 24, 2005 at 14:50:46, Thomas Logan wrote:
>
>>On August 24, 2005 at 12:05:09, Vincent Diepeveen wrote:
>>
>>>On August 24, 2005 at 08:59:28, Thomas Logan wrote:
>>>
>>>>On August 24, 2005 at 08:47:33, Vincent Diepeveen wrote:
>>>>
>>>>>On August 24, 2005 at 08:20:25, Thomas Logan wrote:
>>>>>
>>>>>>Does anyone have scaling figures for various deep programs
>>>>>>
>>>>>>and systems with 2 dual core processors
>>>>>>
>>>>>>Tom
>>>>>
>>>>>hi, i just started a test at my k7 single cpu machine
>>>>>to compare an output created at a quad dual core 1.8Ghz.
>>>>>
>>>>>The test is over 213 positiosn and statistical significant.
>>>>>
>>>>>I expect results within 2 weeks.
>>>>>
>>>>>You can calculate what time it takes 70 minutes * 213 positions.
>>>>>
>>>>>one thing already seems sure:
>>>>>
>>>>>x86-64 has no scaling problems with big hashtables, x86 has.
>>>>>
>>>>>Vincent
>>>>
>>>>Hello Vincent
>>>>
>>>>Thank you
>>>>
>>>>Are you using Diep ?
>>>>
>>>>Any knowledge concerning Fritz, Junior or Shredder
>>>>Please post your results when obtained
>>>
>>>Shredder is scaling 3.3 at quad single core, so that'll be like scaling of 4 at
>>>dual core quad or so?
>>>
>>>junior was single core and fritz will not be scaling well either (deepfritz8).
>>>
>>>We know all this already from 8 cpu Xeon machines in fact. See results donninger
>>>posted once.
>>>
>>>If you don't run well at 8 cpu xeon then forget dual core.
>>>
>>So you believe Shreder scale fairly well on a quad
>
>Scaling 3.3 is very ugly from a quad.
>
>Please don't mix scaling with speedup, just like Bob did do.
>
I understand the kns vs ply/time distinction

Any idea what the actual speedups of the commercials might be

Tom



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