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Author Topic: The network just hit 40 PetaFLOPS!  (Read 1756 times)
epi 1:10,000
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May 22, 2011, 10:12:12 PM
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May 22, 2011, 10:51:27 PM
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So, Skynet next?
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May 22, 2011, 11:01:59 PM
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Why are you measuring hashes/s in FLOPS?

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May 22, 2011, 11:12:33 PM
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Why are you measuring hashes/s in FLOPS?
What else would you measure it in?
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May 22, 2011, 11:17:12 PM
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What else would you measure it in?

... Hashes per second?  1 FLOP is Float Operation, and there are many float operations per hash, so it's kind of a misleading unit of measurement when talking about network performance.

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May 22, 2011, 11:20:02 PM
 #6

Why are you measuring hashes/s in FLOPS?
I assume it's because bitcoinwatch shows TeraFLOP/s (as well as Gigahashs/s).

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epi 1:10,000
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May 23, 2011, 12:17:27 AM
 #7

So, Skynet next?

The land of Oz is building Skynet

http://www.cio.com.au/article/387097/exclusive_ska_bid_looks_skynet_computing/

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May 23, 2011, 12:23:46 AM
 #8

Why are you measuring hashes/s in FLOPS?
I assume it's because bitcoinwatch shows TeraFLOP/s (as well as Gigahashs/s).
What does that even mean?  There is no floating point in hashing.
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May 23, 2011, 01:09:05 AM
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Why are you measuring hashes/s in FLOPS?

because hashes/sec is meaning outside of Bitcoin. If we want to know how big the network is versus a super computer, what else would you measure it in?

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May 23, 2011, 01:17:17 AM
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Why are you measuring hashes/s in FLOPS?

because hashes/sec is meaning outside of Bitcoin. If we want to know how big the network is versus a super computer, what else would you measure it in?

Integer Operations and Floating Point Operations are not comparable.

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May 23, 2011, 01:20:08 AM
 #11

Integer Operations and Floating Point Operations are not comparable.

Of course... but then the whole hash/sec on Bitcoin Watch is an estimate anyway...

So, when you get down to it, all these numbers are meaningless.

However, knowing a rough ballpark of a FLOPs rate *is* interesting, because it does help you think in scale of the TOP 500.

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May 23, 2011, 01:26:55 AM
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Integer Operations and Floating Point Operations are not comparable.

Of course... but then the whole hash/sec on Bitcoin Watch is an estimate anyway...

So, when you get down to it, all these numbers are meaningless.

However, knowing a rough ballpark of a FLOPs rate *is* interesting, because it does help you think in scale of the TOP 500.

But you can't actually assume any kind of estimate of how many FLOPs our network is. If I can do 2 Integer operations in one clock but only Floating Point operation per clock, you can't just say my 8 million integer operations per second are the equivalent of 8MFLOPS. Some hardware can even do 4 Integer operations in the same time it takes to do one single Floating Point operation.


Edit: For hashing, the proper network computational power unit is MIPS instead of FLOPS.

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May 23, 2011, 01:35:10 AM
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I get about half that assuming vast majority of hashrate is ATI 5xxx GPUs.
3Thps = about 8300 5870s = about 22.5PFLOPS peak single precision, 4.5PFLOPS peak double precision.

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May 23, 2011, 08:18:02 PM
 #14

Why are you measuring hashes/s in FLOPS?
I assume it's because bitcoinwatch shows TeraFLOP/s (as well as Gigahashs/s).
What does that even mean?  There is no floating point in hashing.

It means exactly what I said: that bitcoinwatch displays TeraFLOP/s as well as Gigahashs/s. I have no idea why; you'd need to ask them.

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