Yeah I know, I know - doesn't really matter but still breaks my concentration while reading an article just like people who can't use there/their/they're.

Mines the coat with the British Dictionary in it.

Surely I'm not the only one to spot the irony that the most efficient non IBM power machine was built by an OIL company!

Mind you, who else knows better how expensive energy is these days?

Most money spent per Teraflop. Now that's a list I'd like to see.

Paris, because High Performance Computing is a solved problem.

20w - pah - I have a server running that takes less than 1w while idle (about 3-5w when the disk spins up).

Unfortunately, it's an NSLU2 which has no FPU so while the MIPS is quite high (260ish), the FLOPS are quite low (they're floating point calculations)

Yep your mythtv box can count. But lets assume (probably optimistically) that your processor in your myth tv can sustain 1.5 GFLOPS at 20Watts (again 20watts is probably average rather than peak performance).

1.5GFLOPS would be a low spec'd celeron at about 1Ghz.

That gives you a rating of 75 MFLOPS/Watt. Again though I doubt you could sustain that at 20 Watts for very long. BUt that would put you around 170th on the list.

Cheers,

Chris

I've wondered for a while how much all the computing power spent simulating global warming scenarious is itself contributing to global warming. Interesting step towards finding out.

Next step on the green bandwagon: amount of the energy used by a supercomputer that's renewable. I can see LL getting a solar panel roof now...

Then again, if you're doing carbon footprints, the construction overhead for a supercomputer might be significant (although blades ought to be better per MIPS than a full PC cluster).

I did like the people who were using the water cooler for their servers to heat their swimming pool, though. When I can afford a few thousand cores, I must do this. :-)

I was wondering how many posts it would take for someone to point out the incorrect spelling of colour.

*\. Still wondering if my jacket is grey or gray! *lol*