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Subject: Re: Supercomputer smashes world speed record

Author: Robert Hyatt

Date: 20:22:54 04/20/02

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On April 20, 2002 at 06:16:28, Vincent Diepeveen wrote:

>On April 19, 2002 at 14:21:31, Eugene Nalimov wrote:
>
>suppose i also run some MMX gameplaying software at the same time,
>how about both programs running at the same time?  :)

This has nothing to do with anything.  You won't get one program using
MMX stuff and another program using the integer pipes.  There is _one_
cpu, and _one_ process running.



>
>>Even today for *some* programs you can see speedup on the desktop if you'll move
>>some of your computations to the otherwise idle FP units. That happened, for
>>example, on some cryptographic program where bottleneck was # of multiplications
>>CPU can execute simultaneously.
>>
>>Eugene
>>
>>On April 19, 2002 at 11:16:41, Vincent Diepeveen wrote:
>>
>>>On April 19, 2002 at 08:47:40, Roy Eassa wrote:
>>>
>>>>On April 18, 2002 at 21:46:43, Robert Hyatt wrote:
>>>>
>>>>>On April 18, 2002 at 16:33:55, Martin Andersen wrote:
>>>>>
>>>>>>On April 18, 2002 at 16:10:02, Sally Weltrop wrote:
>>>>>>
>>>>>>>A Japanese machine records the fastest "floating point" calculation
>>>>>>>speed - over 35 trillion calculations per second. This is five times
>>>>>>>faster than the previous record holder, IBM's ASCI White system.
>>>>>>>
>>>>>>>http://www.processrequest.com/apps/redir.asp?link=XbddafaeBG
>>>>>>
>>>>>>I'm no expert, but I don't think chess programs use floating
>>>>>>point calculations.
>>>>>>
>>>>>>Martin
>>>>>
>>>>>
>>>>>Only because on PC machines, integer math is faster.  If FP was faster,
>>>>>we'd all be using that.  On some machines, it is faster..
>>>>
>>>>
>>>>Interesting point!  Could FP be faster than integer on the desktop in the
>>>>not-too-distant future?  Or will that remain the domain of "big" computers for
>>>>many years to come?
>>>
>>>not a chance that ints are slower.
>>>you can see fp as 64 bits ints,
>>>you can't see ints as fp though



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