[Beowulf] dollars-per-teraflop : any lists like the Top500?

[Hearns, John]

> I'm speculating, one reason could be that sites are loath to disclose
> their exact $ purchase prices etc. But on the other hand for most of
> the publicly owned  systems this should be accessible information
> anyways. I was just thinking that this might be an interesting
> parameter to track. I was also curious as to when systems become
> larger is there an economy of scale in the Beowulf world? i.e. for
> something like Jaguar or Kraken is the $/teraflop much lower than what
> it is for my tiny 100-node system. Another question could be: Is it
> cheaper to assemble 100 Teraflops of capacity in the US or WU or China

I don't think you'll find that information anywhere readily.
Also consider the difference between peak HPL flops rating and the
useful work you
will get out of a system.
Sticking my neck out slightly here, systems with lots of GPUs will score
highly on
the $$/flop ratings - but do you get that amount of work under
real-world loads?


John Hearns

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