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Subject: Re: IBM

Author: Peter Hegger

Date: 15:54:44 10/29/98

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On October 29, 1998 at 15:32:45, Jeremiah Penery wrote:

>On October 29, 1998 at 13:16:53, blass uri wrote:
>
>>
>>On October 29, 1998 at 11:52:21, Peter Hegger wrote:
>>
>>>I read an article in today's newspaper about IBM's new super computer which is
>>>nicknamed "Pacific Blue". According to this article PB can make 3.9 trillion
>>>calculations per second.
>>
>>What is the definition of a calculation?
>>
>>Adding integer numbers is different from adding real numbers or from multiplying
>>and I do not understand what do you mean by calculation.
>>
>>Uri
>
>I would guess this means Floating-point operations per second.
>That is generally how it is done, though of course they could mean integer
>operations, in which case the speed above speed is a bit inflated, compared to
>what its performance would be on 'real' applications.
>
>Jeremiah

Yes, this does in fact mean floating-point operations per second or 3.9 TF
compared to 350Mhz or so for the average home computer.
http://www.rs6000.IBM.com/resource/features/1998/asci_oct/asci_fact.html
for some specs.
Does anyone know the floating-point operations per second for the RS/6000 used
in "Deep Blue" vs. Kasparov 1997? I can't find it anywhere and would like to
know so I have something for comparison.
Another interesting article at:
http://www.news.com/News/Item/0,4,19117,00.html
This tells of plans to have a 100 teraflop machine in service by 2004.

Peter





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