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Other => CPU/GPU Bitcoin mining hardware => Topic started by: norulezapply on December 23, 2011, 10:44:09 PM



Title: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 23, 2011, 10:44:09 PM
http://www.bbc.co.uk/news/technology-16316439 (http://www.bbc.co.uk/news/technology-16316439) <-- link to the article.

The new £16/$25 computer that runs Linux. Could these be modified to run GPUs/FPGAs off?

I think FPGAs would be feasible but I'm guessing it's a no to GPUs since there's no PCI-express I assume.

NOTE: The Raspberry Pi would only getwork and pass it to FPGAs/GPUs for mining. I didn't mean using a Raspberry Pi for hashing.

Post your thoughts below!

(PS: it plays Quake 3 Arena :o )


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: wndrbr3d on December 23, 2011, 11:07:32 PM
Based on previous ARM benchmarks of similar processors, I doubt this would even hit 1 Mhash/sec. So I'm guessing no.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 23, 2011, 11:09:19 PM
Based on previous ARM benchmarks of similar processors, I doubt this would even hit 1 Mhash/sec. So I'm guessing no.
I didn't mean mining directly from the board.

I meant connecting FPGAs/GPUs to it to do the actual mining. The Raspberry Pi would just be used to getwork and submit hashes for the connected FPGAs/GPUs.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: CubedRoot on December 24, 2011, 01:49:52 AM
I would think they should work fine to control an FPGA farm.
Heres the official site:

http://www.raspberrypi.org/

and the FAQ Section

http://www.raspberrypi.org/faqs


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: sadpandatech on December 24, 2011, 02:05:01 AM
I see you need the model B, $35 to get ethernet. Stil not at all a bad deal. I did not see directly but do we know if it is a single or dual USB ports?
I like the micro usb for power concept. pretty nifty. Some things to note on it here;
"Model B owners using networking and high-current USB peripherals will require a supply which can source 700mA (many phone chargers meet this requirement). Model A owners with powered USB devices will be able to get away with a much lower current capacity (300mA feels like a reasonable safety margin)."


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: CubedRoot on December 24, 2011, 02:15:47 AM
I has a single USB 2.0 port on it.  So you will need to get a USB hub for periphreals.  I would suggest a powered USB hub.  Yeah I just realized you need the $35 model to get ethernet, but no biggy.
The did say it supported wifi with a USB dongle.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on December 24, 2011, 02:32:51 AM
I see you need the model B, $35 to get ethernet. Stil not at all a bad deal. I did not see directly but do we know if it is a single or dual USB ports?
I like the micro usb for power concept. pretty nifty. Some things to note on it here;
"Model B owners using networking and high-current USB peripherals will require a supply which can source 700mA (many phone chargers meet this requirement). Model A owners with powered USB devices will be able to get away with a much lower current capacity (300mA feels like a reasonable safety margin)."

Just use a powered hub and it is a non-issue.

Interesting idea.  $25 computer + $20 12 port hub = ability to drive up to 12 FPGA boards.  Kinda crazy to be driving thousands of dollars of computing power from a $25 computer board but I like it.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on December 24, 2011, 02:35:03 AM
For those who are wondering here is a shot of the computing board.

http://www.raspberrypi.org/wp-content/uploads/2011/12/L1030065-e1324590711428.jpg


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: paraipan on December 24, 2011, 02:38:42 AM
more pr0n pls  :D


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: CubedRoot on December 24, 2011, 02:46:32 AM
more pr0n pls  :D

LOL.  check the FAQ page link I posted a few posts back in this thread.  They have a lot of Raspberry porn in there... lol


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on December 24, 2011, 03:04:39 AM
I saw this on the BBC last night and went to check it out. I thought the same - could use as a FPGA manager. But also I think someone could design a 4 FPGA card daughterboard that mates directly onto this ones GPIO connector and controls them thru that. No need for USB on the FPGAs and hubs and all that. Even less cost, just FPGAs and power regulators.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on December 24, 2011, 03:08:25 AM
I saw this on the BBC last night and went to check it out. I thought the same - could use as a FPGA manager. But also I think someone could design a 4 FPGA card daughterboard that mates directly onto this ones GPIO connector and controls them thru that. No need for USB on the FPGAs and hubs and all that. Even less cost, just FPGAs and power regulators.

Interesting.

It is too bad even USB 3.0 only support 5W.  If it supported more an alternate idea would be FPGA boards which were bus powered.  Firewire supports up to 45W per port but do idea how costly firewire interface is.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on December 24, 2011, 03:57:55 AM
I saw this on the BBC last night and went to check it out. I thought the same - could use as a FPGA manager. But also I think someone could design a 4 FPGA card daughterboard that mates directly onto this ones GPIO connector and controls them thru that. No need for USB on the FPGAs and hubs and all that. Even less cost, just FPGAs and power regulators.

Interesting.

It is too bad even USB 3.0 only support 5W.  If it supported more an alternate idea would be FPGA boards which were bus powered.  Firewire supports up to 45W per port but do idea how costly firewire interface is.
I think it's quite feasible at a hobbyist level. I've made cheap home made PCBs before (with a 256 pin Spartan 3 on board) and potentially something like this could work. And though it may not be best practices I know it's possible to solder the BGA type chips to a PCB at home because I've seen the locals where I live do it on the street with cell-phone repairs. I'm not in a position right now to pursue this myself but I have a SMD workstation and have done FPGA projects in the past. You could attach 4 FPGAs to this Raspberry for not much more than the $175 per chip cost. That would be awesome.

(only because it's such a minimal fpga design - no external high speed signal routing)

I have to say I can't believe they put composite video on this thing. Someone has a whimsical attachment to the past. Just waiting to see Pong on this.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: paraipan on December 24, 2011, 04:28:17 AM
more pr0n pls  :D

LOL.  check the FAQ page link I posted a few posts back in this thread.  They have a lot of Raspberry porn in there... lol

thanks, missed it somehow


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Jay_Pal on December 24, 2011, 05:07:16 PM
http://www.bbc.co.uk/news/technology-16316439 (http://www.bbc.co.uk/news/technology-16316439) <-- link to the article.

The new £16/$25 computer that runs Linux. Could these be modified to run GPUs/FPGAs off?

I think FPGAs would be feasible but I'm guessing it's a no to GPUs since there's no PCI-express I assume.

NOTE: The Raspberry Pi would only getwork and pass it to FPGAs/GPUs for mining. I didn't mean using a Raspberry Pi for hashing.

Post your thoughts below!

(PS: it plays Quake 3 Arena :o )

you are tottaly right. It would only be a great controler for USB connected FPGA's.
It has no pci-E.
Although I have thought about clustering them and running xen on the cluster.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Jay_Pal on December 24, 2011, 05:15:56 PM
I have to say I can't believe they put composite video on this thing. Someone has a whimsical attachment to the past. Just waiting to see Pong on this.

Glad they did, it will be quite usefull to connect it to my 15 year's old, 20" still in perfect shape, TV!!! :D


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 24, 2011, 05:18:13 PM
http://www.bbc.co.uk/news/technology-16316439 (http://www.bbc.co.uk/news/technology-16316439) <-- link to the article.

The new £16/$25 computer that runs Linux. Could these be modified to run GPUs/FPGAs off?

I think FPGAs would be feasible but I'm guessing it's a no to GPUs since there's no PCI-express I assume.

NOTE: The Raspberry Pi would only getwork and pass it to FPGAs/GPUs for mining. I didn't mean using a Raspberry Pi for hashing.

Post your thoughts below!

(PS: it plays Quake 3 Arena :o )

you are tottaly right. It would only be a great controler for USB connected FPGA's.
It has no pci-E.
Although I have thought about clustering them and running xen on the cluster.

I'm also glad they added composite video to it. Not everyone has HDMI monitors you know!

How would you go about clustering these things together anyway?


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: sadpandatech on December 24, 2011, 05:24:28 PM
I have to say I can't believe they put composite video on this thing. Someone has a whimsical attachment to the past. Just waiting to see Pong on this.

Glad they did, it will be quite usefull to connect it to my 15 year's old, 20" still in perfect shape, TV!!! :D

  That was my first impression. Older tv for the win.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Jay_Pal on December 24, 2011, 07:08:22 PM
How would you go about clustering these things together anyway?

Well, when I first read about Rasperberry PI, before the Beta version with ethernet, I mailed Eben and got his ansewer:

Eben Upton
   
Jul 22
      
to me
Hi Rui
Thanks for your mail. The devices should be available to the general
public later in the year; I'll add you to our mailing list, and will
keep you posted as we get closer to launch.

We have some thoughts about non-Ethernet point-to-point links using
MIPI CSI-2 and DSI, but this is some way down the line.

Cheers

Eben Upton
Director, Raspberry Pi Foundation

On Sun, Jun 12, 2011 at 4:29 PM, Rui wrote:
> Hi
> Since Slashdot published an article about your project, I've been thinking
> about it a lot and very tempted to get my hands in some of them.
> In your site you ask what would i do with it, and my answer is I'd love to
> make a very cheap and low power cluster out of it, running Xen, perhaps.
> But then, I realized something:
> Is there any other way to make each one communicate with each other?
> As far I've understood, it has to be via an usb-ethernet adapter, right?
> How costly would it be to implement some kind of bus so we could stack them
> together and even, power them all at the same time?
> Perhaps some pins on the side that would connect in some sort of breadboard?
> How about leaving some expanding capabilities open for, let's say,
> peripherals connecting directly to this bus for robotics or other purposes?
> Bear in mind that these are just some of my thoughts about it and i think
> that leaving room for parallel processing will attract lots of people, but I
> understand it might be too difficult to implement and I even believe you
> have thought about it already.
> If you need some more thoughts or ideas about this, don't hesitate
> contacting me.
> By the way, I'd like to ask you a favor of notifying me about the release of
> this way cool computer, please.
> Perhaps I'll be able to buy a pair in December or something.
>
> With my best regards,
>
> Rui

But it evolved, so, with or without ethernet itś fairly simple to make the board communicate with each other (usb wifi, usb ethernet, etc...).
So you would stack up a bunch of them, nominate one as the master and all the rest would be running as slaves.
Then, you fire up each board's OS, run XEN and start adding them up to the master.
You would end up with a virtualized computer where you would put any OS you could (don't know yet if it would support normal x86 code that way). But even so, there could be a distributed ARM miner to take advantage of this, I gess... Or let XEN take care of distribution and load balancing, alone.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Transisto on December 27, 2011, 07:05:20 PM
Quote
No pre-orders have been taken because the organisation said it did not want to take anyone's cash without having something to hand over in return.
That part reminded me of BFL


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: CubedRoot on December 27, 2011, 07:08:50 PM
Quote
No pre-orders have been taken because the organisation said it did not want to take anyone's cash without having something to hand over in return.
That part reminded me of ButterflyLabs
Come on now, lets not turn this thread into the pile of shit that was the BFL threads with all the trolls in it.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Transisto on December 27, 2011, 08:51:44 PM
Quote
No pre-orders have been taken because the organisation said it did not want to take anyone's cash without having something to hand over in return.
That part reminded me of ButterflyLabs
Come on now, lets not turn this thread into the pile of shit that was the BFL threads with all the trolls in it.
No chances it is to happen

PS: What I quoted is the opposite of what BFL did.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 27, 2011, 10:36:56 PM
The Raspberry Pi is far from what BFL are proposing to produce.

Anyway, BFL are taking preorders at the moment with nothing to show for it.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: CubedRoot on December 27, 2011, 10:57:39 PM
Let's keep it on topic. There are to many trolls around for this thread to get off topic.
I think the raspberry pi are supposed to ship in January's.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: defxor on December 28, 2011, 01:26:13 AM
I just made a comment on "that other thread" about people willing to pay out of pocket for being part of running Bitcoin with no interest in the actual mining profits from it. I was thinking of the Raspberry Pi connected to one FPGA-miner and using Wifi to communicate with a pool. Preferably wall socket mounted even.



Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Transisto on December 28, 2011, 01:45:07 AM
Wow, this a great moment for innovation, This thing will turn into so many new and custom product,

Arduino on steroid...

Same at eetimes comments may be more relevant .
http://www.eetimes.com/electronics-news/4229945/A-slice-of-Pi---the--25-computer-on-show
Quote
700MHz ARM11, the board has 128MB or 256MB of SDRAM, OpenGL ES 2.0, 1080p30 H.264 high-profile decode and composite and HDMI video output

www.raspberrypi.org for lots and lots of information


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: rph on December 28, 2011, 07:35:33 AM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: naypalm on December 28, 2011, 08:26:09 AM
Now on my "To buy" list for next year.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 28, 2011, 02:55:11 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on December 28, 2011, 03:02:42 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.

The point is that cheap ATX power supply could power the FPGA AND motherboard.

While $25 is 70% more (The model B w/ ethernet is $35) the increase is trivial compared to the cost of FPGA.

Say $1/MH (likely higher).  1GH FPGA array is $1000.  5GH is $5000.  $25 "more" isn't much more when it means you gain access to the larger and better developed (at least for Bitcoin) x86 architecture.

Take a 5GH array.
$5000 FPGA
$100 PSU
$100 cables, usb hubs, various parts, possibly an enclosure
-----
$5200 + $35 Pi = $5235
$5200 + $60 mATX atom/VIA/sempron board + $10 RAM = $5270

The Pi system is 0.7% cheaper but requires all development to be on the ARM architecture.  Personally I would pay the $35 premium to gain x86 compatibility.  To each his own though.


Still the Pi is interesting.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on December 28, 2011, 03:18:19 PM
What interests me is the easy access to the GPIO pins for high speed interfacing to FPGAs. I'm not sure you have that on an Atom. I have an Atom here but I think the only thing like that is the parallel port and generally they aren't that fast. So for the Atom you likely need to also use a USB based micro controller to talk to FPGAs (as most of the the boards so far do).

At least that's my take on it. I wouldn't bother with the Raspberry if I were just going to use it's USB port to talk to FPGAs.



Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 28, 2011, 03:25:16 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.

The point is that cheap ATX power supply could power the FPGA AND motherboard.

While $25 is 70% more (The model B w/ ethernet is $35) the increase is trivial compared to the cost of FPGA.

Say $1/MH (likely higher).  1GH FPGA array is $1000.  5GH is $5000.  $25 "more" isn't much more when it means you gain access to the larger and better developed (at least for Bitcoin) x86 architecture.

Take a 5GH array.
$5000 FPGA
$100 PSU
$100 cables, usb hubs, various parts, possibly an enclosure
-----
$5200 + $35 Pi = $5235
$5200 + $60 mATX atom/VIA/sempron board + $10 RAM = $5270

The Pi system is 0.7% cheaper but requires all development to be on the ARM architecture.  Personally I would pay the $35 premium to gain x86 compatibility.  To each his own though.


Still the Pi is interesting.

That's true. If you want x86 then that's the way to go for sure.

But also what's the wattage like running a mATX board? The wattage for the Pi is 1 watt.

It might not be a huge difference but it's an achievement nonetheless


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on December 28, 2011, 03:36:47 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.

The point is that cheap ATX power supply could power the FPGA AND motherboard.

While $25 is 70% more (The model B w/ ethernet is $35) the increase is trivial compared to the cost of FPGA.

Say $1/MH (likely higher).  1GH FPGA array is $1000.  5GH is $5000.  $25 "more" isn't much more when it means you gain access to the larger and better developed (at least for Bitcoin) x86 architecture.

Take a 5GH array.
$5000 FPGA
$100 PSU
$100 cables, usb hubs, various parts, possibly an enclosure
-----
$5200 + $35 Pi = $5235
$5200 + $60 mATX atom/VIA/sempron board + $10 RAM = $5270

The Pi system is 0.7% cheaper but requires all development to be on the ARM architecture.  Personally I would pay the $35 premium to gain x86 compatibility.  To each his own though.


Still the Pi is interesting.

That's true. If you want x86 then that's the way to go for sure.

But also what's the wattage like running a mATX board? The wattage for the Pi is 1 watt.

It might not be a huge difference but it's an achievement nonetheless

Power consumption for ULV x86 chips (sempron, atom, VIA) is much higher.  Maybe 20W to 40W depending on specific CPU, load, chipset, motherboard design, etc.



Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on December 28, 2011, 03:40:03 PM
Ah well that'd definitely be enough for me to prefer a Raspberry Pi. That's just personal preference of course, but I think it's a really impressive bit of kit.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Jay_Pal on January 11, 2012, 01:10:14 PM
And they started manufacturing the first 10k batch!


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Bossland on February 02, 2012, 03:27:59 PM
They use the http://en.wikipedia.org/wiki/VideoCore

BCM2835  video chip

anyone knows how much minihash it does ? :)


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: mimarob on February 05, 2012, 10:59:00 AM
If you're getting impatient maybe try the Carambola?

No video but wifi :-)

http://www.8devices.com/wiki_carambola/doku.php


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Kluge on February 05, 2012, 12:09:10 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.
That's a curious fallacy humans apply to cost-analysis. 2x more does not equate to "a lot more," but people do this all the time when considering which item to buy. For a very telling example of why that line of thinking is so wrong, consider buying a pair of earphones vs. a car -- assume you check prices at two different stores which aren't far apart (and they both carry cars and earphones):

First, you go to Store A. They sell XYZ earphones @ $12, YXZ cars @ $12,000.
Store B sells XYZ earphones @ $5, YXZ cars @ $12,100.

The majority of people will likely buy both the car and the earphones @ Store B because in their minds, they think "$100 isn't very much in the context of a $12,000 purchase," so they aren't willing to drive all the way back for such relatively meager savings. These same people, were they just buying earphones, and went to Store B first, would likely go back to Store A to buy the earphones, because in their mind "$7 is a lot in the context of a $12 purchase." But, your finances don't really give a damn where your money comes or go. There is no "context" -- it's just numbers. This odd way most humans calculate whether or not to purchase something is why salesmen are so successful at selling people garbage add-ons & warranties. The cost of them is a small amount in the context of the whole purchase, but stores know better, and can see huge profit boosts by selling people on the small stuff. (P.S. $50 in the context of a $6,000 FPGA farm purchase is a drop in the bucket :P )

ETA: derp. I will read threads all the way through before posting so I don't give redundant information. I will read threads all the way through before posting so I don't give redundant information. I will read threads all the way through before posting so I don't give redundant information.

... So.... on-topic. This could be very exciting with a video adapter. It probably would be quite cheap to have these PCs shipped here, give it a unique aesthetic (I'm thinking a Hot Pockets box), then rebrand it as the Ghetto PC. Surf the web, watch videos, play basic (and I mean BASIC ;) ) games, edit documents, read your email -- perfect for poorer & older people.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: norulezapply on February 05, 2012, 01:29:25 PM
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.. and need an ATX supply to run the FPGAs anyway..

-rph

"$25 more" is double the price.
So that's actually a lot more.

As for the ATX I'm sure plenty of people have lots of cheap PSUs laying around. I know I for one would be glad to sell all my spare PSUs off for $5 or less if it means I'm rid of the things.
That's a curious fallacy humans apply to cost-analysis. 2x more does not equate to "a lot more," but people do this all the time when considering which item to buy. For a very telling example of why that line of thinking is so wrong, consider buying a pair of earphones vs. a car -- assume you check prices at two different stores which aren't far apart (and they both carry cars and earphones):

First, you go to Store A. They sell XYZ earphones @ $12, YXZ cars @ $12,000.
Store B sells XYZ earphones @ $5, YXZ cars @ $12,100.

The majority of people will likely buy both the car and the earphones @ Store B because in their minds, they think "$100 isn't very much in the context of a $12,000 purchase," so they aren't willing to drive all the way back for such relatively meager savings. These same people, were they just buying earphones, and went to Store B first, would likely go back to Store A to buy the earphones, because in their mind "$7 is a lot in the context of a $12 purchase." But, your finances don't really give a damn where your money comes or go. There is no "context" -- it's just numbers. This odd way most humans calculate whether or not to purchase something is why salesmen are so successful at selling people garbage add-ons & warranties. The cost of them is a small amount in the context of the whole purchase, but stores know better, and can see huge profit boosts by selling people on the small stuff. (P.S. $50 in the context of a $6,000 FPGA farm purchase is a drop in the bucket :P )

ETA: derp. I will read threads all the way through before posting so I don't give redundant information. I will read threads all the way through before posting so I don't give redundant information. I will read threads all the way through before posting so I don't give redundant information.

... So.... on-topic. This could be very exciting with a video adapter. It probably would be quite cheap to have these PCs shipped here, give it a unique aesthetic (I'm thinking a Hot Pockets box), then rebrand it as the Ghetto PC. Surf the web, watch videos, play basic (and I mean BASIC ;) ) games, edit documents, read your email -- perfect for poorer & older people.

This is true, but I meant relative to the original price, for someone with a low budget.

And yeah I believe they'll be really good at getting more people involved with technology.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Sp0tter on February 23, 2012, 10:56:36 PM
The majority of people will likely buy both the car and the earphones @ Store B because in their minds, they think "$100 isn't very much in the context of a $12,000 purchase," so they aren't willing to drive all the way back for such relatively meager savings.

I completely disagree.  Most people would use the total cost of their purchase to decide where to buy, not some relative proportion.  You fell victim to the "everyone but me is stupid" disease.  It runs rampant on the internet.  Humans making rational decisions is part of the foundation of economics...



Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: P_Shep on February 23, 2012, 11:03:51 PM
the Pi would be nice, but I think I'll get another router to do this.
Though, it is 3x more expensive.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Kluge on February 24, 2012, 01:34:17 AM
The majority of people will likely buy both the car and the earphones @ Store B because in their minds, they think "$100 isn't very much in the context of a $12,000 purchase," so they aren't willing to drive all the way back for such relatively meager savings.

I completely disagree.  Most people would use the total cost of their purchase to decide where to buy, not some relative proportion.  You fell victim to the "everyone but me is stupid" disease.  It runs rampant on the internet.  Humans making rational decisions is part of the foundation of economics...


Any basis for your claim? I certainly used to do it (especially the other irrational decision people often make comparison shopping, looking at relative performance to other similar objects, then paying a high premium for something which really doesn't affect my enjoyment of the purchased item just because it performs slightly better than the much cheaper item). Basis of argument was from http://www.ted.com/talks/dan_gilbert_researches_happiness.html I believe (could've been something else he did -- I don't have time to watch it again).


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: wondermine on February 28, 2012, 01:24:13 PM
Controlling an FPGA farm can be done with almost any microcontroller you want to use.  The new wave of all these microcomputers (beagleboard, panda etc etc) simply allows you to do so while using familiar linux kernels; if you want to control an FPGA farm with minimal power and space consumption, you have a couple of options that are simpler, really...
-Arduino w/ Ethernet Shield
-NXP mBed MCU
-Make your own board with a PIC/ARM/AVR/whatever and either tap into the GPIO on an FPGA board or put the FPGA on your board yourself.  Regardless it's gonna consume minimal power and minimal space.  And it's easy, mbed or arduino are both great platforms to start working on, from both a learning and business perspective.

And which FPGAs need an ATX PSU...?

Is the idea here that it would be smart for me to try to make an uber cheap controller board rather than try to compete with BFL or ZTEX in FPGA mining tech?  Cause that I can do, let me know the specs of what size constraints and power consumption you'd like to deal with and I'll put up a design, no problem.
By that I mean something you plug a miner into one end, the wall into the other, an ethernet cable for getworking, and control all your mining on a little LCD onboard the device without all this nonsense "uPC" overhead. 

Some of you may not be particularly impressed with my work over on "Nanominer", fine, whatever, I'm not asking anything for this, I'd like to get into the hardware design game and I don't mind doing this all on spec, what sorts of features/constraints are we talking?


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on February 28, 2012, 01:43:48 PM
And which FPGAs need an ATX PSU...?

Well no FPGA needs an ATX PSU.  Still if efficiency is the goal wallwarts tend to be horribly inefficient.   If you have say 20 boards buying a single high efficiency ATX PSU is cheaper, cooler, neater, and more efficient than 20x individual PSUs.

I would much rather have 20 20W boards running on a 500W 80Plus-Gold PSU @ 92% efficiency than 20 70% efficient wallwarts with extension cords, and power strips running everywhere.  The cleaner power of higher quality PSU is just a bonus and good for longevity.

Quote
Is the idea here that it would be smart for me to try to make an uber cheap controller board rather than try to compete with BFL or ZTEX in FPGA mining tech?  Cause that I can do, let me know the specs of what size constraints and power consumption you'd like to deal with and I'll put up a design, no problem.
By that I mean something you plug a miner into one end, the wall into the other, an ethernet cable for getworking, and control all your mining on a little LCD onboard the device without all this nonsense "uPC" overhead. 

If it has things like web reporting showing stats, charts, etc, and can monitor/control multiple FPGA you likely have a winner.  I think a lot of people would pay some decent money for a "turn key" solution.  Now if it requires console access, limited functionality, and has less features & capabilities than existing solutions (mATX board, w/ linux & cgminer) you likely won't have much demand.

If you can make it user friendly with some webpage charting/stats/control honestly you might end up making more than the FPGA developers.  I would imagine most of the value would come from the "turnkeyness" not the component costs and with no competitors you likely could mark it up significantly and still have sales.

To give you an idea.  An atom board + RAM + usb drive = $80.  That gets you no case, having to install linux yourself, get cgminer up and running, find some web monitoring package, still use ssh for control, etc.  I would pay $100 for something which is clean & easy (maybe has a small cube case optional?) I don't care if it costs you $18 to build it. 

The $100 is paying for the functionality not the parts.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: marked on February 28, 2012, 09:27:10 PM
I would pay $100 for something which is clean & easy (maybe has a small cube case optional?) I don't care if it costs you $18 to build it. 

The $100 is paying for the functionality not the parts.

How many do you think would be interested - I'm getting a raspberry, so could have something within a week or two, and then it's just a case of having an image that can be written to an sd card similar to BAMT. Put up on a torrent, and you'd have to buy your own raspberry_pi. The only drawback is that there are no cases yet - given the number of FPGA boards without, would that be a problem?

you might also be interested in the following, though I don't know when it will be shipping (End of Feb?)
http://www.solid-run.com/ 99EUR/135USD
CuBox is an almost 2" cube, hence the name (Cube-Box), its features include:
Marvell Armada 510 based 800MHz ARM processor
ARMv7 Instruction set, including VFP3 floating point unit and wmmx SIMD unit.
1GByte DDR-3
HDMI
OpenGL|ES 2.0 GPU
Peripherals:
10/100/1000 Mbps Ethernet
2 x USB 2.0 (host)
eSata 2, 3Gbps
Infra-red receiver
Optical audio SPDIF transmitter
microSD for operating system
microUSB (device) for debug and recovery
The platform is provided with completely open source SDK:
Android 2.2
Linux kernel 2.6
Demo software for demonstrating capability of the platform:
XBMC
Ubuntu and Debian


marked


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Disposition on February 28, 2012, 09:42:18 PM
From what I know:
Quote
BitSyncom has plans to use this as their routing device on the meshnet tower.

They are currently in the process of porting pfSense (http://www.pfsense.org/) onto it. They have also been working with debian-arm group working on a rather different project(ultimately still to have the option to boot debian from a arm device), the word currently is Raspberry Pi will see some play in the Meshnet project if not for miningOp management.

if there's enough interest I'll bug Yifu and write an article on it since there's talks on considering investing into a BFL Single or multi-set ups, feel free to ask any questions.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: cpt_howdy on February 28, 2012, 10:19:48 PM
The majority of people will likely buy both the car and the earphones @ Store B because in their minds, they think "$100 isn't very much in the context of a $12,000 purchase," so they aren't willing to drive all the way back for such relatively meager savings.

I completely disagree.  Most people would use the total cost of their purchase to decide where to buy, not some relative proportion.  You fell victim to the "everyone but me is stupid" disease.  It runs rampant on the internet.  Humans making rational decisions is part of the foundation of economics...


Any basis for your claim? I certainly used to do it (especially the other irrational decision people often make comparison shopping, looking at relative performance to other similar objects, then paying a high premium for something which really doesn't affect my enjoyment of the purchased item just because it performs slightly better than the much cheaper item). Basis of argument was from http://www.ted.com/talks/dan_gilbert_researches_happiness.html I believe (could've been something else he did -- I don't have time to watch it again).

I'm just laughing at the preposterous idea that people go out shopping with that kind of list in their head - "right, ok, today I need to buy me some headphones... and a car".


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: jago25_98 on February 28, 2012, 11:57:03 PM
the gpu is Not really needed. I wonder about getting a model1 and use a usb-ethernet adapter.depends on if arm linux kernel has that support
 
I can imagine something like this combining with FPGA for an all in one miner.. Or even gpu sockets

Might be able to fit it inside a bfl single box...


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on February 29, 2012, 07:10:02 AM
Looks like the first Raspberry Pis are on sale.
I was hugely disappointed to see they changed distribution to use RS and Farnell.

Both sites are overloaded now but even after waiting a long time and getting to the Farnell page I see they're selling them for $50 not $35. I can't tell yet if that includes shipping because the pages keep hanging. I can't imagine that passing them thru distributors like these guys will allow them to make any money for the foundation nor keep the pricing promises. My experience with "mainstream" distributors is they always want to ship by FedEx or UPS and charge a fortune for it.

What a shame.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: RoloTonyBrownTown on February 29, 2012, 08:07:33 AM
Looks like the first Raspberry Pis are on sale.
I was hugely disappointed to see they changed distribution to use RS and Farnell.

Both sites are overloaded now but even after waiting a long time and getting to the Farnell page I see they're selling them for $50 not $35. I can't tell yet if that includes shipping because the pages keep hanging. I can't imagine that passing them thru distributors like these guys will allow them to make any money for the foundation nor keep the pricing promises. My experience with "mainstream" distributors is they always want to ship by FedEx or UPS and charge a fortune for it.

What a shame.

There's actually two products on the Farnell site.  One for $50 and one for $38.   No idea what the difference is, but I obviously ordered the $38 one :)   Free shipping as well which is nice.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: pieppiep on February 29, 2012, 08:32:36 AM
RASPBERRY-PI - RASPBRRY-CHIPSET - CHIPSET, RASPBERRY PI, MODEL B - £21.60 (google tells me thats € 25.54)
RASPBERRY-PI - RASPBRRY-PCBA - SBC, RASPBERRY PI, MODEL B - € 33,02

What I think (but can't find clear on the website) is the first one is the components (chipset) and the second is the complete assembled version.
The first one is listed under accessories, the second one under primary platform.

/edit, seems I can't order them yet.
Binnenkort verkrijgbaar - registreer hier uw interesse (Coming soon - register your interest here) at farnell site.
Register here to express an interest in Raspberry Pi at rs site.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: RoloTonyBrownTown on February 29, 2012, 09:02:13 AM
RASPBERRY-PI - RASPBRRY-CHIPSET - CHIPSET, RASPBERRY PI, MODEL B - £21.60 (google tells me thats € 25.54)
RASPBERRY-PI - RASPBRRY-PCBA - SBC, RASPBERRY PI, MODEL B - € 33,02

What I think (but can't find clear on the website) is the first one is the components (chipset) and the second is the complete assembled version.
The first one is listed under accessories, the second one under primary platform.

/edit, seems I can't order them yet.
Binnenkort verkrijgbaar - registreer hier uw interesse (Coming soon - register your interest here) at farnell site.
Register here to express an interest in Raspberry Pi at rs site.

You could earlier (when I ordered).  They've disabled the buy button now though.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on February 29, 2012, 09:08:57 AM
Apparently, according to the Rasp Pi twitter, they sold out the first batch and the "register interest" is so they can gauge demand for the next batch. It's still a bit unclear as the twitter doesn't seem to be definitive on that and whether both sites are now out, or just Farnell.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: marked on February 29, 2012, 10:10:48 AM

There's actually two products on the Farnell site.  One for $50 and one for $38.   No idea what the difference is, but I obviously ordered the $38 one :)   Free shipping as well which is nice.

There are two models, A and B. The A was 128Mb RAM but it got upgraded to 256MB like the B. The B also has ethernet and 2 USB ports.

marked


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: RoloTonyBrownTown on February 29, 2012, 10:55:37 AM

There's actually two products on the Farnell site.  One for $50 and one for $38.   No idea what the difference is, but I obviously ordered the $38 one :)   Free shipping as well which is nice.

There are two models, A and B. The A was 128Mb RAM but it got upgraded to 256MB like the B. The B also has ethernet and 2 USB ports.

marked

Only the B has been manufactured so far, so it's not that.   The $50 version may have a shorter delivery timeframe, we'll see :)



"All of the first units to be produced are the $35 Raspberry Pi Model B. We are launching with Model Bs as there has been a much larger demand for them from the community."

http://raspberrypi.org/#modelb


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: rocksalt on February 29, 2012, 11:48:08 AM
Broadcom BCM2835 700MHz ARM1176JZFS processor with FPU and Videocore 4 GPU
GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode
GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure
256MB RAM
Boots from SD card, running the Fedora version of Linux
10/100 BaseT Ethernet socket
HDMI socket
USB 2.0 socket
RCA video socket
SD card socket
Powered from microUSB socket
3.5mm audio out jack
Header footprint for camera connection
Size: 85.6 x 53.98 x 17mm

this is taken from RS components site...

Where it says GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure you'll have to excuse my ignorance here, FPGA stuff is like an alien world to me,  but isn't 24GFLOPs a rather large number..... can anyone compare this to say a 6970? GFLOPs for GFLOPs


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Kluge on February 29, 2012, 11:50:57 AM
Where it says GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure you'll have to excuse my ignorance here, FPGA stuff is like an alien world to me,  but isn't 24GFLOPs a rather large number..... can anyone compare this to say a 6970? GFLOPs for GFLOPs
AMD's GFLOPs # for 6970 is 683, or >28x greater.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: pieppiep on February 29, 2012, 12:33:02 PM
Where it says GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure you'll have to excuse my ignorance here, FPGA stuff is like an alien world to me,  but isn't 24GFLOPs a rather large number..... can anyone compare this to say a 6970? GFLOPs for GFLOPs
AMD's GFLOPs # for 6970 is 683, or >28x greater.
https://en.bitcoin.it/wiki/Mining_hardware_comparison
So the 6970 gets 397 MH/s with 683 GFLOPS, or 1.72 GFLOPS / MH/s
So the raspberry pi GPU gets 24 / 1.72 = little under 14 MH/s
14 MH/s for $25 (A type is cheaper but with the same GPU) is $0.56 / MH/s

Conclusion, the normal GPUs for a normal pc are 3 to 6 times more efficient.

Another point, (most? all?) GPU miners are probably written with the opencl library, I don't know if there exists a version of it for the raspberry pi.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: rocksalt on February 29, 2012, 12:50:03 PM
interesting...

so assuming 14MH/s

to get anywhere near a 6970 in terms of raw MH/s power even at a conservative guestimate.... your probably looking at at least 25-50 of these units all hashing away at around 14MH/s to the same pool under a single account to get near say 600MH/s ( 42 rasberries )

Obviously really inefficient but would look really neat in a rack with loads of these things hooked up... sort of backwards retro


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: tritium on February 29, 2012, 04:28:36 PM
from a quick google it doesn't support opencl


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on February 29, 2012, 04:33:39 PM
Where do you guys get 6970 gets 683 GFLOPS. 

6970 has 2.7 TFLOPS of floating point computational power and a 7970 is ~3.8 TFLOPS.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: bulanula on March 01, 2012, 12:20:39 AM
Where do you guys get 6970 gets 683 GFLOPS. 

6970 has 2.7 TFLOPS of floating point computational power and a 7970 is ~3.8 TFLOPS.

WOW. Did not realize the difference between a 5870 and 7970 was that big.

Now that you look at the TFLOPS and MHash/s it really does look like the 7970 is almost 1.7 times faster than a 5870 due to the much better overclocking ability of 28nm GPUs.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on March 01, 2012, 03:50:47 AM
Where do you guys get 6970 gets 683 GFLOPS. 

6970 has 2.7 TFLOPS of floating point computational power and a 7970 is ~3.8 TFLOPS.


WOW. Did not realize the difference between a 5870 and 7970 was that big.

Now that you look at the TFLOPS and MHash/s it really does look like the 7970 is almost 1.7 times faster than a 5870 due to the much better overclocking ability of 28nm GPUs.

Yeah AMD integer performance took a nose dive with the new architecture.  The 7970 simply puts up respectable numbers by brute force.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Global BTC on March 02, 2012, 07:18:33 PM
I see you need the model B, $35 to get ethernet.

Not really. You can get a USB ethernet adapter for less than $4, or a USB wifi adapter for $8.
http://img1.tinydeal.com/small_images/93/68/9368_30039_CAD-9368.jpg
USB Ethernet $3.57 (http://www.tinydeal.com/USB-10/100MBPS-RJ45-Card-Ethernet-Adapter-Converter-p-8484.html?sk=43612833fL)
http://img1.tinydeal.com/small_images/60/95/66095_465789_CNP-66095.jpg
Wireless-N USB $7.96 (http://www.tinydeal.com/NETCORE-Brand-NW336-150Mbps-Wireless-N-USB-Adapter-p-48848.html?sk=43612833fL)

Dropping the extra $10 to get it built in might give you higher quality components though.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: DeathAndTaxes on March 02, 2012, 07:24:06 PM
I see you need the model B, $35 to get ethernet.

Not really. You can get a USB ethernet adapter for less than $4, or a USB wifi adapter for $8.

You got drivers to support that on the ARM platform?


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Global BTC on March 02, 2012, 07:34:15 PM
Good point. I'm not saying it's impossible, but it's probably not worth the hassle to save $6.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: pieppiep on March 02, 2012, 07:42:15 PM
Type B has 2 usb ports, type A only one.
The dubble usb port count is also worth something :)


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Gabi on March 03, 2012, 08:47:54 PM
Where do you guys get 6970 gets 683 GFLOPS. 

6970 has 2.7 TFLOPS of floating point computational power and a 7970 is ~3.8 TFLOPS.
It's the double precision compute power

6970
2.7 TFLOPs Single Precision compute power
683 GFLOPs Double Precision compute power


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: BkkCoins on March 04, 2012, 02:04:56 AM
Where do you guys get 6970 gets 683 GFLOPS. 

6970 has 2.7 TFLOPS of floating point computational power and a 7970 is ~3.8 TFLOPS.
It's the double precision compute power

6970
2.7 TFLOPs Single Precision compute power
683 GFLOPs Double Precision compute power
It's my understanding that Bitcoin doesn't use floating point anyway - only integer. So unless the gpu architecture is the same any comparison is likely apples to oranges.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: aaa801 on March 04, 2012, 09:11:06 AM
Ok, ima get one of these, but i dont have a fgpa to hook it upto for testing,  :/


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: RoloTonyBrownTown on March 04, 2012, 09:34:11 AM
Ok, ima get one of these, but i dont have a fgpa to hook it upto for testing,  :/

That's OK, I do :)   By the time you get your Pi delivered you may as well (it'll be a little while yet).


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: shivansps on May 05, 2012, 06:13:27 AM
So if we are looking for trouble why not use a OpenWRT supporting router with USB port to run the FPGAs? haha...


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: P_Shep on May 05, 2012, 10:20:42 AM
So if we are looking for trouble why not use a OpenWRT supporting router with USB port to run the FPGAs? haha...


Done :)


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Timbo925 on May 05, 2012, 11:33:52 AM
If you don't want to wait to try it. I'm selling my freshly arrived pi here: https://bitmit.net/en/trade/i/2481-raspberry-pi-model-b/description


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: Garr255 on May 05, 2012, 05:50:06 PM
I have experience running large amounts of FPGAs on what might be called an underpowered machine. I wouldn't plan on hosting more than five boards with this, but that is a very rough estimate.


Title: Re: Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this?
Post by: film2240 on May 05, 2012, 06:00:21 PM
I'd love to know how to setup an FPGA with the raspberry pi so I can finally get a really cheap and low energy PC for getwork tasks while delegating the actual mining to the FPGA.I'd like a clear walkthrough with pics if someone has managed as well as which OS they used on the Raspberry Pi.