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Subject: Re: Refuting nonsense about 64 bits servers/supercomputer chips

Author: Uri Blass

Date: 01:01:51 09/04/01

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On September 04, 2001 at 03:29:05, Ed Schröder wrote:

>On September 04, 2001 at 02:32:07, Ed Schröder wrote:
>
>>On September 03, 2001 at 21:27:30, Robert Hyatt wrote:
>>
>>>No, but you should stop making pronouncements about various processors, based
>>>solely on how your program runs on them.  That is _not_ a good benchmark.  I'll
>>>bet you any amount of money you want that Cray Blitz, in pure fortran, will
>>>run 10x faster than your program, on a cray.  Because that code was designed
>>>to work on a vector architecture, and has specific algorithms designed to take
>>>advantage of that kind of hardware.
>>
>>Just curious, when was the last time you have started Cray Blitz on a Cray?
>>
>>Ed
>
>More to this, see: http://www.top500.org/sublist/index.php3
>
>Which is a top-500 of the fastest installed hardware in the world.
>
>Rank Manufacturer                       (GFlops) Processors
>
>1.   IBM ASCI White,SP Power3 375 MHz   [7226.00] [8192]
>2.   IBM SP Power3 375 MHz 16 way       [2526.00] [2528]
>3.   Intel ASCI Red                     [2379.00] [9632]
>4.   IBM ASCI Blue-Pacific              [2144.00] [5808]
>
>11.  Cray Inc. T3E1200                  [1127.00] [1900]
>
>439. Presto III Athlon 1.333 GHz 	[77.40]   [78]
>
>Interesting is of course the AMD which gets almost 1 GFlop per processor where
>the Cray by far does not get 1 GFlop per processor. Bottom line: isn't your
>beloved Cray out-performed by nowadays micro processors available from your
>local super market?

I do not see how it is outperformed.
Do you suggest that 1127.00 for cray is outperformed by 77.40
for the Athlon or maybe you compare only Gflops per processor
and in this case
1127/1900 is smaller than 77.40/78 for the athlon.

I also do not understand the meaning of these numbers

What is the meaning of 78 processors?
Does the commercial athlon has 78 processors and if it does
then what is the reason that Deep Fritz is going to use only 8
processors against kramnik?

Uri



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