What would be the CPU time of following PC ?

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Profile Thierry Van Driessche
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Message 74709 - Posted: 27 Jan 2005, 20:24:14 UTC

Total CPUs 131,072
Theoretical system peak performance (GFlop/s) 360,000
Memory/node 512 MiBytes
Total memory 32 TiBytes
Type of memory DDR DRAM
Total disk space 800 TiBytes (global)

More about this "box" can be find here.
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Profile Sir Ulli
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Message 74710 - Posted: 27 Jan 2005, 20:45:58 UTC

LOL :)

i think this is a good Computer for Mr Spock compute in time-travel at what...

Greetings from Germany NRW
Ulli S@h Berkeley's Staff Friends Club m7 ©

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Hans Dorn
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Message 74711 - Posted: 27 Jan 2005, 20:51:36 UTC - in response to Message 74709.  

> Total CPUs 131,072
> Theoretical system peak performance (GFlop/s) 360,000
> Memory/node 512 MiBytes
> Total memory 32 TiBytes
> Type of memory DDR DRAM
> Total disk space 800 TiBytes (global)
>
> More about this "box" can be find <a> href="http://www.top500.org/upcoming/bluegene/">here[/url].
>

OK, let's see. Each CPU runs at 667 Mhz, and may need 50000 seconds per WU.
Divide by 131072 and you get 0.38 seconds per WU :o)

Regards Hans

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Profile Thierry Van Driessche
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Message 74712 - Posted: 27 Jan 2005, 20:54:25 UTC - in response to Message 74711.  
Last modified: 27 Jan 2005, 21:01:16 UTC

> OK, let's see. Each CPU runs at 667 Mhz, and may need 50000 seconds per WU.
> Divide by 131072 and you get 0.38 seconds per WU :o)
>
> Regards Hans

Nice

Next exercise:

Any idea about what could be the RAC of this "horse" ?

Best regards from Belgium.
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Profile Toby
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Message 74714 - Posted: 27 Jan 2005, 21:08:02 UTC - in response to Message 74711.  

> OK, let's see. Each CPU runs at 667 Mhz, and may need 50000 seconds per WU.
> Divide by 131072 and you get 0.38 seconds per WU :o)

Ah but be sure to keep in mind the difference between time/work unit and average throughput. It would do a single work unit in about 13 hours. The only thing that makes it so impressive is that it could do "many" work units at once. :)

Also I think it would hit the max work units per host per day limit pretty quickly :)


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Message 74727 - Posted: 27 Jan 2005, 22:07:38 UTC - in response to Message 74709.  

And once more I'm going to remind all present that those PowerPC 440s can be cranked as high as 2.1GHz w/o major difficulaties - a 3x increase...

Go Big Blue, Go!
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Message boards : Number crunching : What would be the CPU time of following PC ?


 
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