Topic: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher - page 81. (Read 365630 times)

Firmware for the gridseeds themselves.

Can you try running just one device off the Pi and report back speeds?

There is some difference which I have yet to find.  The lack of yay usually means you are not submitting shares.  You could try another pool but it sounds like you are submitting shares as you said sometimes.

Miaviator or anyone running with RPi.  I have it running with each session but for some reason regardless of which USB Hub I run (using a 10port I use to use for USB miners) I only get about 150-200khs per worker at 800-850.  In Windows I had 5 running last night at 300-350KH/s per.  I am running the Scripta release on RPi with Drphranz modified version.  I am loading a second SD card to try out Minepeon (since its based on Arch) to see if it helps any. 

Also I know people talk about firmware but is that just for the controllers or is there firmware for the Gridseed units themselves?

My units are red - what are the practical differences - should I feel speshul compared to the golden peasants or just jump off a bridge?

Sometimes the units do this :

for like an eternity , with pools not reporting any hashrate. Any magic tricks to make them do the YAY or is everything as it should be?

Added more linux specs for single and dual mode.

Moved power supply replacements to the top.

Integrated more questions and clarifications into the OP.

In linux I can do one cgminer to run all the miners and 10 cpuminer to run each scrypt portion.

So you may be able to get away with 21 windows

Actually I'm quite interested.  You want me to assist?

Great setup guide, thanks soo much.

thanks a lot for your setup guide.
great works.

40 windows then right? This is the only way for dual mode mining?


And thanks for the awesome tutorial! 

Yep I had done that just copy/pasted the wrong line of minerd command syntax. 

I'll give it another try using the latest write up from miaviator just in case I am remembering things wrong in my old age 

You would create 40 total scripts and a 41st to kick them all off.  I'll look for the post and put it in the windows section I know there are some people running 20 in scrypt only. 

both work, but 2.5 is the proper size

thanks  2.5 mm plug or 2.1 ?

So how would one dual mine BTC/LTC 20 of these using windows?

Is there a way to do it without the controller and just use a single pc? I hear you get better hash rates and less resets when you don't use the controller.

worldlybedouin add --dual to the commandline of minerd and skip freq

I added btc mining to the Linux section

I'll add per device btc mining as well in a bit.

So I was playing around a bit today with the RasPi + minerd setup per your instructions miaviator...Hope this helps you to revise your docs and others as well...

Objective:  Mine both BTC & LTC off of the RasPi.

I used the following to run cgminer for the BTC chip: 

Couple of things I learned:

baud=115200:
Didn't mess with this, I figured the BTC chip was "fixed" to work at this baud rate.

freq=850: 
It's similar to the freq setting on the controller dashboard and I saw small gains in BTC hashing performance going from 700 to 800 in 50unit increments.  Not huge but the power shoots way up from ~500watts to ~725+ watts.  Not worth it in my opinion.

chips=5:
Don't change this, I thought it was for letting cgminer know how many devices (i.e. 10 miners vs. 5 miners) i had connected...but that's not the case!!  It actually stands for "5-chip Gridseed device" which is the round miners.

modules=1:
Didn't change or mess with this at all because I didn't know what it was for.

usefifo=0:
Didn't change or mess with this at all because I didn't know what it was for.

btc=16:
I dialed this up from 11 (as shown in the Gridseed instructions PDF) up to 16 and did notice an increase in hashrate & watts...though I'm not 100% sure exactly what effect it had.

hotplug=0:
Didn't change or mess with this at all because I didn't know what it was for...guessing it has something to do with USB-hotplugging of devices.


Next, I tried to run the cgminer for my BTC chip, and per the Gridseed instructions document (making sure to start the BTC hashing first like they said then starting LTC hasing)...I tried to run cgminer & minerd flike this:


FYI, I ran the minerd command once for each of the 10 miners...replacing the ttyACM# with the actual device # from 0 through 9.

The above commands (11 in total; 1 for cgminer/BTC and 10 for minerd/LTC) yielded BTC hashing around 60GH for BTC and 0Mh for LTC.

So then I re-read the instructions and saw that their example leaves out the -G option to specify the device...so I then tried this:


However this got me about 60GH for BTC and a dismal 200kh for LTC.  So it seems leaving out the -G for some reason defaults to hashing only on 1 miner.

Clearly I'm doing this wrong!   So for now I'm going back to just running LTC mining via minerd and see if I can find some docs/info to figure out what I'm doing wrong.

Cheers!

Added.  I suppose you could do like bamt and make a screen with inner screens?

I just cycle through them with

for i in `screen -ls`;do screen -x $i;done

Thanks.   I was a few days/weeks behind on the docs. 

@miaviator

Not sure if this helps but I'm running Raspbian Wheezy and it didn't have screen installed...so perhaps you can add this to your instructions to help those who were in the same place as me?


Screen commands:
Ctrl + A + C:  Create a new SCREEN session.
Ctrl + A + N:  Switch to the Next screen session.
Ctrl + A + P:  Switch to the Previous screen session.
Ctrl + A + D:  Detaches a screen session (without killing the processes in it - they continue).

Credit goes to:  http://raspberrypihelp.net/tutorials/37-raspberry-pi-screen-keep-your-processes-running-after-disconnect