Not sure if its been hit upon yet, but Raspberry Pi mining cluster?

skeeterskeeter

full member

Activity: 160

Merit: 100

Quote from: Soros Shorts on March 06, 2013, 10:37:40 AM

Quote from: stevegee58 on November 22, 2012, 11:00:17 AM

I got cgminer running on a BeagleBone. The scary part is I could have been racking up the BTC back in the early days with a rig like this.
At my current hash rate I should be getting 1 share every 7-8 hours or so. Cool

This guy only got 156 Kh/s on a Beaglebone. Doesn't a Beaglebone have a slightly better processor than a Raspberry Pi (ARM 11 vs. ARM Cortex A8)?

Hmm. Ok. 1 share per 7-8 hours, lets be nice say 7.

Guy on BTCGuild overall has 1,589,694,471 shares, with a Pi that would take 11127861297 hours, or 463660887 days, or 1270303 years, or 1,270 millenia.

Same guy has a speed of 3,651.67 Gigahash. We run a 0.000976563Mhash or on the same scale 9.5367e-7 GHash. So we only need 3829070852 Pi's to match his speed! Or roughly $134017479841.

But that's only .8% of our (USA) national debt. Congress should look into getting some Pi's?

2112

legendary

Activity: 2128

Merit: 1073

Quote from: skeeterskeeter on March 06, 2013, 08:13:57 AM

GPU Specs: "GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 (requires license purchase from raspberrypi.com) high-profile decode, GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure"

The real GPU development on Raspberry Pi requires the Broadcom/VideoCore toolchain. It is only available through an NDA to the large-scale developers and Broadcom partners. It isn't open-source, it isn't even available for a normal purchase.

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

From the very limited public information about the VideoCore one can surmise that the architecture resembles the old Texas Instruments VLIW DSP chip TMS320C80 MVP (multimedia video processor).

Soros Shorts

donator

Activity: 1617

Merit: 1012

Quote from: stevegee58 on November 22, 2012, 11:00:17 AM

I got cgminer running on a BeagleBone. The scary part is I could have been racking up the BTC back in the early days with a rig like this.
At my current hash rate I should be getting 1 share every 7-8 hours or so. Cool

This guy only got 156 Kh/s on a Beaglebone. Doesn't a Beaglebone have a slightly better processor than a Raspberry Pi (ARM 11 vs. ARM Cortex A8)?

skeeterskeeter

full member

Activity: 160

Merit: 100

Just bought one on Ebay, I guess I'll see what I can do. Otherwise I still wanted a Pi!

AmDD

legendary

Activity: 1027

Merit: 1005

I think someone tried and posted about it. If I remember right it got less than 5mh/s. Not worth mining on but could be used to control FPGA/ASIC units via usb.

skeeterskeeter

full member

Activity: 160

Merit: 100

http://en.wikipedia.org/wiki/Raspberry_Pi
GPU Specs: "GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 (requires license purchase from raspberrypi.com) high-profile decode, GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure"

So has anyone bought/tried/heard of mining on a raspberry pi?

So the highest price model is $35.
Best GPU Mhash/s/$ is the 5830 with 3.28, Best FPGA Butterflylabs Mini Rig 1.64 Mhash/s/$, and Avalon ASIC 52 Mhash/s/$.

So for it to beat out any of the 3 hardware types so far at $35 a pop
To at least match the efficiency of each hardware type

FPGA
1.64 Mhash/s/$ = X (Mhash/s)/ $35
X = 57.4 Mhash/s

GPU
3.28 Mhash/s/$ = X (Mhash/s)/ $35
X = 114 Mhash/s

ASIC
52 Mhash/s/$ = X (Mhash/s)/ $35
X = 1820 Mhash/s

So for the Pi to beat out FPGA's in effciency it would need to hash at 58 Mhash/s, to beat GPU's 114 Mhash/s, and to beat the mystical ASIC 1820 Mhash/s.

Think a Pi could do it?

Topic: Not sure if its been hit upon yet, but Raspberry Pi mining cluster? (Read 10385 times)