FPGA development board "Icarus" - DisContinued/ important announcement - page 29.

Epoch

legendary

Activity: 922

Merit: 1003

Quote from: ?? on ??

Quote from: Defkin on February 10, 2012, 07:36:30 PM

Quote from: ?? on ??

Can any of you that already have these tell me what your real world savings is on your utility bill and what your price per kWh is? I want to hear mainly from those that have replaced a video card with this product. With the dual purpose of the HD 7970 and its great hashing power I’m having trouble pulling the trigger on a product that's about the same price and can’t be used by me for anything but mining and can't be resold to anyone but miners. Thanks in advance.

I have both cards and icarus. Currently the for me the electricity to generate 1 btc is about 29c for GPU and 1.44c for FPGA and with BTC being around $6 it is not that important to me atm. I think the big advantage is ease of expandability:

Those are all very good points, thank you. The cost savings looks like it's substantial. That's the only real issue for me. I have computers used by my family that I haven't upgraded the GPU on yet so the other factors are not as big a concern for me. Of course, I forgot about heat because it's winter. Thanks for reminding me how miserable last summer was for me.

Keep in mind that Defkin's cost of 29c to generate 1BTC is extremely low; most people cannot achieve anywhere this low a cost.

To generate 1BTC per day at today's difficulty would require 1400Ghps. That's 3 overclocked 5870s running at 200W each, or 600W. Add to that the power for the cpu, motherboard, and power supply efficiency (assume 90%) and that brings you up to 700W. Or 16.8kWh per day. The AVERAGE electricity rate in the US is $0.11/kWh. So 16.8kWh x $0.11/kWh is $1.85. Not $0.29.

So although Defkin can somehow generate 1BTC with his GPUs for $0.29, most people in the States will need $1.85 in electricity to generate that same 1BTC. Run the same numbers for the FPGA and see what you get. Defkin gets 1.44c, but again that is unrealistically low for the average person. Check your electricity bill and see what your actual rate is.

Defkin

member

Activity: 80

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Quote from: ?? on ??

Can any of you that already have these tell me what your real world savings is on your utility bill and what your price per kWh is? I want to hear mainly from those that have replaced a video card with this product. With the dual purpose of the HD 7970 and its great hashing power I’m having trouble pulling the trigger on a product that's about the same price and can’t be used by me for anything but mining and can't be resold to anyone but miners. Thanks in advance.

I have both cards and icarus. Currently the for me the electricity to generate 1 btc is about 29c for GPU and 1.44c for FPGA and with BTC being around $6 it is not that important to me atm. I think the big advantage is ease of expandability:

This was my thinking when i considered the two, for me to add another 1gh for GPU or FPGA:-

FPGA: I just plug in 3 more units, 10 minutes work. Increase in heat/power 60w so not currently an issue. I will have to buy a new $15 usb hub when I add another 2gh, if I add another 20gh I will have to look at increasing cooling.

GPU: going to need another rig, MB, PSU, case, mem, HDD or usb, OS etc. Increase in heat/power 800w. I cannot fit a new rig in the area i am using, plus the noise will be too much. Moving both rigs to new area I will also have to increase external cooling as my current arrangement is not enough, a small window mount AC unit should do....another 500w. You get the picture...

If i keep on expanding to 10gh for GPU I will need to increase mains supply from the switch board, from the street should be ok till around 50gh. In comparison with FPGA I will not even have to look at this until i hit 100gh+

TheSeven

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Activity: 504

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FPGA Mining LLC

Quote from: hardpick on February 10, 2012, 03:51:59 PM

Quote from: ngzhang on February 09, 2012, 12:14:56 PM

i suggest every one switch to Modular Python Bitcoin Miner
https://bitcointalksearch.org/topic/modular-python-bitcoin-miner-official-thread-62823

I don't understand -- if you have a slow ping time you require the queue miner to get 380 mh/s

does this miner get 380mh/s on slow ping time ( about 420ms ping to deepbit) ?

thanks
Luke

It should - even though you'll likely have slightly more stales than normal due to the high latency.
Fetching work fast enough shouldn't be a problem.

hardpick

sr. member

Activity: 265

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Football President

Quote from: ngzhang on February 09, 2012, 12:14:56 PM

i suggest every one switch to Modular Python Bitcoin Miner
https://bitcointalksearch.org/topic/modular-python-bitcoin-miner-official-thread-62823

I don't understand -- if you have a slow ping time you require the queue miner to get 380 mh/s

does this miner get 380mh/s on slow ping time ( about 420ms ping to deepbit) ?

thanks
Luke

allinvain

legendary

Activity: 3080

Merit: 1080

Wohoo..got it working. Just a note for those on Win 7 x64. First download and install curses mython module from here:

http://www.lfd.uci.edu/~gohlke/pythonlibs/#curses

On a different note, what percent stale shares are you folks seeing?

allinvain

legendary

Activity: 3080

Merit: 1080

Oh dang, I forgot about long polling! That alone is worth upgrading for.

ngzhang

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We will stand and fight.

Quote from: allinvain on February 10, 2012, 09:20:53 AM

Quote from: ngzhang on February 10, 2012, 08:38:39 AM

looks like much more stable. Cheesy

Well, I will give it a try when it moves to the beta or full release stage. But for the record I've been running your miner for a month now without any problems whatsoever.

the most important feature is Longpool support and backup pool.

and now the only bother thing is :

i re-installed python and curses with suggested version , but the format still looks strange. after that, work well. Huh

allinvain

legendary

Activity: 3080

Merit: 1080

Quote from: ngzhang on February 10, 2012, 08:38:39 AM

looks like much more stable. Cheesy

Well, I will give it a try when it moves to the beta or full release stage. But for the record I've been running your miner for a month now without any problems whatsoever.

ngzhang

hero member

Activity: 592

Merit: 501

We will stand and fight.

looks like much more stable. Cheesy

allinvain

legendary

Activity: 3080

Merit: 1080

Quote from: ngzhang on February 09, 2012, 12:14:56 PM

i suggest every one switch to Modular Python Bitcoin Miner
https://bitcointalksearch.org/topic/modular-python-bitcoin-miner-official-thread-62823

Are you suggesting that MPBM is just as stable as your miner python script?

Defkin

member

Activity: 80

Merit: 10

Quote from: TheSeven on February 10, 2012, 04:43:57 AM

Quote from: DeepBit on February 10, 2012, 04:09:06 AM

There is no underlining in Windows consoles, AFAIR

Yeah, but why on earth would it show that in blue instead of just ignoring it?!

all fixed, my eyes thank you so much

also you don't know how relived I am to know that it is a coding irregularity rather than a deliberate color choice, haha

TheSeven

hero member

Activity: 504

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FPGA Mining LLC

Quote from: DeepBit on February 10, 2012, 04:09:06 AM

There is no underlining in Windows consoles, AFAIR

Yeah, but why on earth would it show that in blue instead of just ignoring it?!

DeepBit

donator

Activity: 532

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We have cookies

There is no underlining in Windows consoles, AFAIR

EDIT: Oh, so it was intended to look like a TABLE ! :)

TheSeven

hero member

Activity: 504

Merit: 500

FPGA Mining LLC

Quote from: Defkin on February 10, 2012, 02:18:33 AM

Very nice.....thank you TheSeven

Just need to change the blue font so i can read it, something to do over the weekend, lol

Heh, what's ending up blue in your terminal is what's supposed to be underlined. What the hell?
To work around that and remove the underline attribute, you can change all occurrences of

Code:

curses.A_UNDERLINE

to

Code:

in /frontend/theseven/cursesui.py

Defkin

member

Activity: 80

Merit: 10

Very nice.....thank you TheSeven

Just need to change the blue font so i can read it, something to do over the weekend, lol

TheSeven

hero member

Activity: 504

Merit: 500

FPGA Mining LLC

Did you install the curses module for the correct python installation? There are separate packages for each combination of python version and architecture (32/64bit), and this needs to match with the python version you're running the miner on.

server

legendary

Activity: 892

Merit: 1002

1 BTC =1 BTC

Quote from: TheSeven on February 09, 2012, 04:12:37 PM

Which one of the curses for windows modules are you using?
It has been reported that the second one listed in README.txt works fine, not sure about the other one. If it doesn't, I'll probably remove it.

I tried both.
I'm using w server 2008 x64 and python 2.7. but nevermind... I will try something else

Code:

C:\TheSeven>miner.py
Traceback (most recent call last):
  File "C:\TheSeven\miner.py", line 331, in 
    exec("import " + configfile + " as config")
  File "", line 1, in 
  File "C:\TheSeven\default_config.py", line 9, in 
    import frontend.theseven.cursesui
  File "C:\TheSeven\frontend\theseven\cursesui.py", line 32, in 
    import curses
ImportError: No module named curses

C:\TheSeven>miner.py
Traceback (most recent call last):
  File "C:\TheSeven\miner.py", line 331, in 
    exec("import " + configfile + " as config")
  File "", line 1, in 
  File "C:\TheSeven\default_config.py", line 9, in 
    import frontend.theseven.cursesui
  File "C:\TheSeven\frontend\theseven\cursesui.py", line 32, in 
    import curses
  File "C:\Python27\lib\curses\__init__.py", line 7, in 
    from _WCurses import *
ImportError: No module named _WCurses

C:\TheSeven>

TheSeven

hero member

Activity: 504

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FPGA Mining LLC

Quote from: server on February 09, 2012, 01:58:28 PM

Quote

C:\TheSeven>miner.py
Traceback (most recent call last):
File "C:\TheSeven\miner.py", line 331, in
exec("import " + configfile + " as config")
File "", line 1, in
File "C:\TheSeven\default_config.py", line 9, in
import frontend.theseven.cursesui
File "C:\TheSeven\frontend\theseven\cursesui.py", line 32, in
import curses
File "C:\Python27\lib\curses\__init__.py", line 15, in
from _curses import *
ImportError: No module named _curses

Which one of the curses for windows modules are you using?
It has been reported that the second one listed in README.txt works fine, not sure about the other one. If it doesn't, I'll probably remove it.

server

legendary

Activity: 892

Merit: 1002

1 BTC =1 BTC

Quote from: ngzhang on February 09, 2012, 12:14:56 PM

i suggest every one switch to Modular Python Bitcoin Miner
https://bitcointalksearch.org/topic/modular-python-bitcoin-miner-official-thread-62823

Ok, but... I get this with curses installed...

Quote

C:\TheSeven>miner.py
Traceback (most recent call last):
File "C:\TheSeven\miner.py", line 331, in
exec("import " + configfile + " as config")
File "", line 1, in
File "C:\TheSeven\default_config.py", line 9, in
import frontend.theseven.cursesui
File "C:\TheSeven\frontend\theseven\cursesui.py", line 32, in
import curses
File "C:\Python27\lib\curses\__init__.py", line 15, in
from _curses import *
ImportError: No module named _curses

coblee

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Activity: 1654

Merit: 1351

Creator of Litecoin. Cryptocurrency enthusiast.

Quote from: ngzhang on February 09, 2012, 12:14:56 PM

i suggest every one switch to Modular Python Bitcoin Miner
https://bitcointalksearch.org/topic/modular-python-bitcoin-miner-official-thread-62823

Yes, it's really good.

Topic: FPGA development board "Icarus" - DisContinued/ important announcement - page 29. (Read 207285 times)