Author

Topic: Flops to hashes question (Read 1871 times)

legendary
Activity: 1246
Merit: 1077
February 19, 2013, 10:15:46 PM
#9
Worse yet, ASICs have high hps but zero flops.
legendary
Activity: 1400
Merit: 1005
February 19, 2013, 10:03:55 PM
#8
Thanks.

I often see the power of a computer listed in flops, and I just wanted to get an approximate conversion measure to know how useful they would be for btc.
It's a little bit like expecting to be able to predict a vehicle's MPG by what its top speed is.  So much variability.
full member
Activity: 182
Merit: 100
February 19, 2013, 08:24:53 PM
#7
Thanks.

I often see the power of a computer listed in flops, and I just wanted to get an approximate conversion measure to know how useful they would be for btc.
legendary
Activity: 1512
Merit: 1036
February 19, 2013, 07:36:10 PM
#6
One can only approximate because:

- Different hardware performs differently on integer operations vs floating point operations. Floating point uses different CPU instructions that use different transistor circuits that are optimized differently (or don't exist in hardware at all, see 386SX).

- a FLOPS test has to be optimized to a GPU platform, without taking advantage of hardware specific features it may not get full performance possible,

- Hashing requires optimized programming too, you ask for FLOPS to hashes, but GPU miners have also nearly doubled in efficiency since the first releases from optimized coding.

Core 2 Q6600 = 11.0 Mhash/s & 5 GFLOPS

doesn't compare at all with

5870: 400Mhash/s:


legendary
Activity: 1400
Merit: 1005
February 19, 2013, 07:30:07 PM
#5
FLOPS = 12.7 * HASH.

Generally speaking, and not entirely accurate.

Bitcoin is 17 times more powerful than the world's most powerful supercomputer.  Wink
full member
Activity: 188
Merit: 100
February 19, 2013, 07:19:40 PM
#4
yes, check this out

http://bitcoincharts.com/bitcoin/

last 2 bottom left numbers
full member
Activity: 182
Merit: 100
February 19, 2013, 06:55:30 PM
#3
Basically my question is is there some sort of method to get an approximate number of hashes from the number of flops?
legendary
Activity: 1512
Merit: 1036
February 18, 2013, 08:58:47 PM
#2
FLOPS = floating point instructions per second

SHA256 = integer math
full member
Activity: 182
Merit: 100
February 18, 2013, 08:06:39 PM
#1
Is there any way to convert flops to hashes or is there no relation between the two?
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