Should Bitcoin fear Army's new 50 petaflops supercomputer?

freedomno1

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Learning the troll avoidance button :)

Quote from: Littleshop on June 13, 2013, 06:45:58 PM

Quote from: Gabi on June 13, 2013, 01:06:35 PM

Petaflops are totally useless for mining Grin

It might be better at scrypt mining. It could even possibly do a 51% attack on all of the scrypt coin chains.

Lol that

We mine more than the top 500 supercomputers on bitcoin could

http://qz.com/84056/the-bitcoin-network-is-now-more-powerful-than-the-top-500-supercomputers-combined/

Come-from-Beyond

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Quote from: AbsoluteZero on June 13, 2013, 10:34:19 PM

Should Bitcoin fear the Army's new computer?

BITCOIN DOES NOT GIVE A SHIT.

Blissful ignorance...

AbsoluteZero

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Should Bitcoin fear the Army's new computer?

BITCOIN DOES NOT GIVE A SHIT.

Elwar

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Viva Ut Vivas

The IBM technology is software based, not hardware based. It decentralizes the computations at a software program level so that you can run the program spread out over many machines. This works really well for feeding data through it in real time and not having any bottle necks. I used to work for IBM and took a class on how to use their Watson technology.

As for mining, saying that this is something to worry about would be like saying that we should worry about them using 100-1000 computers using CPUs to do a 51% attack.

But when I took the class they mentioned that they were able to feed all of the data of the Internet through the thing in 2 weeks. They tried to see how much data could break it in a simulation and their data producing engines could not create data fast enough to overwhelm it.

jdbtracker

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Minimum Effort/Maximum effect

This is a data center for the NSA, they focus on encrypting and decrypting data... I bet you those data centers are full of Purpose built ASIC SHA2-3 AES etc encryption chips.

Littleshop

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Quote from: Gabi on June 13, 2013, 01:06:35 PM

Petaflops are totally useless for mining Grin

It might be better at scrypt mining. It could even possibly do a 51% attack on all of the scrypt coin chains.

tinus42

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http://www.extremetech.com/extreme/155636-the-bitcoin-network-outperforms-the-top-500-supercomputers-combined

threeip

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Quote from: esenminer on June 13, 2013, 04:52:06 PM

If petaflops were the only thing determining hashing speed - which I don't think it is because SHA relies more on integer operations than floating point ones - looking at this

http://en.wikipedia.org/wiki/Radeon_HD_7000_Series

there is a column called GFLOPS - i guess gigaflops and the 7950 has 2867 gigaflops or .002867 petaflops.

so 50 petaflops = 17440 AMD 7950s = 17440 x 600 MH/s = 10.5 TerraHashes per second

I think this matters;

Quote

Usage of RISC SIMD instructions for GPGPU

Bloomberg etc use Tesla for number-crunching. I would be more worried about them.

Quote

Tesla K20X Peak single precision floating point performance 3.95 Tflops

(50 petaFLOPS)/(3.950 teraFLOPS) = 12,600 @ $13,000 = $163million

Quote

Assume BGQ rack is $2-3 M range and performance of 50 GFlops/node

http://www.usqcd.org/meetings/allHands2012/slides/Mawhinney.pdf

So the CUDA version is quite a bit more expensive, but probably works 163x better.

esenminer

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If petaflops were the only thing determining hashing speed - which I don't think it is because SHA relies more on integer operations than floating point ones - looking at this

http://en.wikipedia.org/wiki/Radeon_HD_7000_Series

there is a column called GFLOPS - i guess gigaflops and the 7950 has 2867 gigaflops or .002867 petaflops.

so 50 petaflops = 17440 AMD 7950s = 17440 x 600 MH/s = 10.5 TerraHashes per second

matthewh3

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Quote from: BitCointransfers on June 13, 2013, 03:33:46 PM

Quote from: ?? on ??

Wonder what's the power consumption of that beastie and if all that powers being used for ecologically sound purposes Wink

The army is concerned with killing people more efficiently.

I think winning wars comes above that. Example the game theory of mathematicians like John Nash during the cold war.

BitCointransfers

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Quote from: ?? on ??

Wonder what's the power consumption of that beastie and if all that powers being used for ecologically sound purposes Wink

The army is concerned with killing people more efficiently.

threeip

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How many 79xx does it have? Cool

greyhawk

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Quote from: ?? on ??

Wonder what's the power consumption of that beastie and if all that powers being used for ecologically sound purposes Wink

Like producing bitcoin?

justusranvier

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Maybe if it was a 50 exaflop supercomputer.

RodeoX

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The revolution will be monetized!

No.

pof

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http://bitcoincharts.com/bitcoin/

The total network hashrate in petaflop is 1719. Shocked

Come-from-Beyond

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Quote from: Gabi on June 13, 2013, 01:37:07 PM

Quote from: Come-from-Beyond on June 13, 2013, 01:21:53 PM

Quote from: Gabi on June 13, 2013, 01:06:35 PM

Petaflops are totally useless for mining Grin

I wouldn't say totally...

How many floating operations are required for sha hashing?

No idea. Why?

EDIT: I googled and found that u need only 3 floating-point operations for SHA-256 hashing - https://blogs.oracle.com/DanX/entry/sparc_t4_digest_and_crypto.

Gabi

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Quote from: Come-from-Beyond on June 13, 2013, 01:21:53 PM

Quote from: Gabi on June 13, 2013, 01:06:35 PM

Petaflops are totally useless for mining Grin

I wouldn't say totally...

How many floating operations are required for sha hashing?

aceking

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If the US government wants to attack to bitcoin has lot ways to do it efficiently.

Come-from-Beyond

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Quote from: Gabi on June 13, 2013, 01:06:35 PM

Petaflops are totally useless for mining Grin

I wouldn't say totally...

Topic: Should Bitcoin fear Army's new 50 petaflops supercomputer? (Read 4780 times)