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Author Topic: Sound card mining?  (Read 19972 times)
Lisio
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June 06, 2011, 10:26:55 PM
 #1

Found this interesting link today - http://pastebin.com/JfxxjSG4. What do you know about it?

Code:
pumpkin:~/dev-src/dspminer$ ./miner --combined-worker-pool --miner-urn http://[elided]:[elided]@pit.deepbit.net:8332
4 hw resource(s) found with alsa device discovery...
    1: <snd-hda-intel> HDA ATI SB
    2: <snd-hda-intel> HDA ATI HDMI
    3: <snd-ctxfi> EMU20K1
    4: <snd-ctxfi> EMU20K3
hw3: snd-compute API is supported
hw4: snd-compute API is supported
using (hw3: hw4:) device targets
setting clock rate on hw3: to PERFORMANCE
hw3: <snd-ctxfi> 880Mhz <PERFORMANCE> DSP profile
hw4: <snd-ctxfi> 700Mhz <STANDARD> DSP profile
found DSP microcode in 'sha256-wavelet.ucode'
uploading DSP microcode to hw3:
uploading DSP microcode to hw4:
hw3: miner started!
hw4: miner started!
hw3: 184000 / hw4: 206000 / combined: 390000 khash/sec | runtime: 00:00:35
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sirky
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June 06, 2011, 10:31:39 PM
 #2

My spidey sense is tingling!

I am certainly not clicking that link.
hardly
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June 06, 2011, 10:32:23 PM
 #3

that is just mining on an ATI card, as far as I can tell, and it's using the audio streaming for the naming scheme.

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bcpokey
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June 06, 2011, 10:33:21 PM
 #4

I will be the first to admit I don't know that much about sound cards but I'm still going to call shennanigans on 390Mhash/sec off a soundcard. Or any mhash/sec really
Lisio
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June 06, 2011, 10:33:48 PM
 #5

Nope, this is exactly sound blaster x-fi mining, not ati.
grue
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June 06, 2011, 10:36:10 PM
 #6

inb4 shopped console output.

hw3: 9001000 / hw4: 9001000 / combined: 18002000 khash/sec | runtime: 00:00:35

It is pitch black. You are likely to be eaten by a grue.

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Jack of Diamonds
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June 06, 2011, 10:39:13 PM
 #7

I have spare Xonar Essence STX unopened boxes for testing this out. It's pretty much the top consumer sound card.

Never heard about this concept though. Sounds bogus.

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lemonginger
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June 06, 2011, 10:40:10 PM
 #8

\Or any mhash/sec really

This
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June 06, 2011, 10:40:59 PM
 #9

dang, ninja'd by more plausible explanations. Yes, ASCII text can be faked Smiley

I think this may be possible, but overlooked because audio processing is assumed to be low bandwidth. However, the audio Data Rate for Blu-Ray and HD-DVD are so ridiculously high that the only explanation can be DRM, traitor tracing, and padding to make the files hard to move across the network.

But, yeah OP should have at least chosen a believable hash rate and clock speed. What audio chips run at over 700Mhz?


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TheSeven
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June 06, 2011, 10:44:35 PM
 #10

Code:
pumpkin:~/dev-src/dspminer$ ./miner --combined-worker-pool --miner-urn http://[elided]:[elided]@pit.deepbit.net:8332
4 hw resource(s) found with alsa device discovery...
    1: <snd-hda-intel> HDA ATI SB
    2: <snd-hda-intel> HDA ATI HDMI
    3: <snd-ctxfi> EMU20K1
    4: <snd-ctxfi> EMU20K3
Plausible until here.
Code:
hw3: snd-compute API is supported
hw4: snd-compute API is supported
Ask google what snd-compute is. First hit is this paste.
Code:
hw3: <snd-ctxfi> 880Mhz <PERFORMANCE> DSP profile
hw4: <snd-ctxfi> 700Mhz <STANDARD> DSP profile
Those freqs sound a bit high for an audio DSP?
Code:
found DSP microcode in 'sha256-wavelet.ucode'
Aha. Google "sha256-wavelet.ucode" and find this paste once again. And only this paste.
Code:
hw3: 184000 / hw4: 206000 / combined: 390000 khash/sec | runtime: 00:00:35
So the card that's clocked higher is the slower one?
Oh, and why are those khash numbers nice and even?

I'd call this a nicely crafted april fools leftover...

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xtrem08
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June 06, 2011, 10:47:23 PM
 #11

Timestamp seems to be matching with pastebin

http://twitter.com/#!/nenolod/status/77124678312919040
Tukotih
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June 06, 2011, 10:48:14 PM
 #12

Sounds like plain BS to me but can someone clear this up?
What if we could have bought cheap sound-cards for $30 bucks all along and still get ~300Mh/s...

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June 06, 2011, 10:52:04 PM
 #13

That guy has a long history with bitcoins. I am not sure he is to be trusted.
TheSeven
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June 06, 2011, 10:56:57 PM
 #14

Looking at http://emu10k1.sourceforge.net/as10k1-manual/emu_over.html it seems like there might be a possiblity to actually mine on those things. However the MHz to MH/s ratio in that paste just can't be true. No way.

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kr105
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June 06, 2011, 11:02:58 PM
 #15



dammit  Sad
IIOII
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June 06, 2011, 11:06:19 PM
 #16

This all sounds so weird - it could be true...  Grin

sirky
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June 06, 2011, 11:12:59 PM
 #17

It's possible that I could be the first doubter of a new great technology for bitcoin mining, and go down in infamy.

But I doubt it.
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June 07, 2011, 01:09:20 AM
 #18

I dunno what the hashrate would be, and i imagine one would need to be quite creative with the input/ouput, but there are some SoundBlasters that can be programmed, i got one myself, i don't know how to program it though, i just use KX Drivers to wire a few plugins together to do things like hardware based low latency voice changer, resonance emulation bass enhancer, turning an omni stereo mic into a bidir mic etc.

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bcpokey
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June 07, 2011, 01:30:14 AM
 #19

EMU20K1 estimated processing power is placed at 10,000 MIPS

A radeon 4850 (quickest thing I found with my googlefu) is estimated at about 500,000 MIPS. For a sense of what this means, a 4850 gets about 85MHash/sec according to the hardware comparison wiki. So 85 / 50 would lead one to expect about 1.7Mhash/sec if one managed to make a soundcard hash.
gigitrix
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June 07, 2011, 01:43:32 AM
 #20

It's still going to be another win for the "free electricity" hobbyist types though... and possibly more.
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