BFGMiner 5.5.0: CPU/GPU/FPGA/ASIC mining software, GBT+Stratum, RPC, Linux/Win64

[Muhammed Zakir]

What's the proper syntax for BFGMiner to clock a GridSeed five blade up to the correct speed? It should be set to 800 if I'm not mistaken to get 340KH/s. I'm only getting about 200KH/s so I'm assuming it defaults to a 600 setting?

Code:

--set gsd:clock=800

I use 835 myself.

Me too! 835 seems a stable one but 800 is more stable.

   ~~MZ~~

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[thesincircle]

Hi,

I've got number of the Avalon Nano (https://bitcointalk.org/index.php?topic=779612.msg8841428;topicseen#msg8841428) and have successfuly downloaded and compiled fresh version of bfgminer and run it. It works fine for couple of minutes, then it starts to get slower and finally stall at all. Restarting the bfgminer helps but for same couple of minutes.

I've got configuration here: https://en.bitcoin.it/wiki/Avalon_nano#BFGMiner
here is a log (last half of that): http://pastebin.com/EQAj58HH

The obvious solution -- to make the simple script that restart BFGMiner each 2 minutes, but it's doesn't looks good.

Would be appreciate for any help and hints!

PS I'm on linux (if it may concern...)

I have a similar issue but with Scrypt on multipools (Clevermining, in this case).  Nwools noted that it's a known issue with BFGminer that the hashrate will drop as the multipool switches blockchains.  I'm using a mix of Gridseed Orbs and a Blizzard.  I'm not sure if this has been fixed in version 5.0. 

Are you using a multipool, Dimoza?  If yes, that might be issue.

actually, not. I use classical stratum "single" pool.
But... concerning to your issue, does your hashrate drops to 0 or just getting relatively lower? Cause mine drops to zero.
(and I was trying it on ver 5.0 as well, by the way)

The hashrate will get progressively slower rather than just dropping to 0.

[AJinNYC]

What's the proper syntax for BFGMiner to clock a GridSeed five blade up to the correct speed? It should be set to 800 if I'm not mistaken to get 340KH/s. I'm only getting about 200KH/s so I'm assuming it defaults to a 600 setting?

Code:

--set gsd:clock=800

I use 835 myself.

Thanks, works perfect.

[MathewCNichols]

This is my first post on bitcointalk. Thanks for your work on BFGminer! Also, thanks to Bitcoin Talk for creating such a knowledge rich forum! I've been reading and following many threads. Cryptocurrency is very interesting!

A little background:

I'm currently trying to setup a single Antminer U2 USB on an ASUS RT-N66U. I know I will never achieve an ROI, but my router is always on and I want to contribute to the bitcoin community and mine the blockchain.

This router has Shibby's latest TomatoUSB firmware + Entware + OPKG package manager. However, TomatoUSB, Entware, and OPKG do not provide the kernel driver I need for the Antminer U2 (kmod-usb-serial-cp210x.)

I believe I would have to compile these kernel drivers for Entware or request to have them built into TomatoUSB?

The big question:

Would someone be willing to compile the cp210x.ko for the Tomatousb 2.6.22.19 kernel or an .ipk for kmod-usb-serial & kmod-usb-serial-cp210x for Entware with MIPS architecture? I believe if I had this kernel driver or package I could insmod it or install them using OPKG and mine away!

All input is welcome!

Happy 2015!

[rupy]

How can you underclock the Monarch?

[455510]

BFGMiner closes after I enter the password.

[Taugeran]

How can you underclock the Monarch?
[/quote
This would be a great question for Lightfoot

[Luke-Jr]

How can you underclock the Monarch?

--set bitforce:_cmd1=F??

The first "?" is a frequency index, from 1 to F (hexadecimal).
Due to dynamic clocking in the MCU, there are no set frequency numbers.
The second "?" is either "X" for normal speed, or "D" for double speed.

You can also use --set bitforce:_cmd1=V?X to control voltage.
In this case, the "?" is one of:

• 0 = 0.54 V
  
• 1 = 0.55 V
  
• 2 = 0.56 V
  
• 3 = 0.58 V
  
• 4 = 0.6 V
  
• 5 = 0.62 V
  
• 6 = 0.63 V
  
• 7 = 0.643 V
  
• 8 = 0.65 V
  
• 9 = 0.662 V
  
• A = 0.67 V
  
• B = 0.68 V
  
• C = 0.7 V
  
• D = 0.72 V
  
• E = 0.73 V
  
• F = 0.75 V
  

[rupy]

Sweet, thanx!

[systembug]

Hi Luke-Jr.

Just a tip: the README.ASIC.txt, Gridseed section, reports the possibility to set individual clock per device, but not to force the use of individual devices.
Indeed, it reports only the parameter "-S gridseed:all", so it seems to be impossible to use a single device.
After reading the README.txt (lines 370-380) and some search (also this thread, post #67 and #68) I find that BFGMiner allows this possibility, simply specifying a "-S gridseed:\\.\COMx" for every device needed (also the simplest "-S \\.\COMx" seems to works correctly).
It may be useful to update the README.ASIC.txt with these information, as i.e. reported in the Zeus section

Now, the implementations request

1) Can be added the possibility to show in the main interface (at least) the specified clock for every Gridseed device, like CGMiner?

2) Can be added the possibility to specify a single (or a set of) device(s) to a specific pool?
Explanation: I have 2 Gridseed Mini (5 chip) and 1 Gridseed Blade (2x40 chip), and I need to use them separately (every single device dedicated to a specific pool).
The reasons of this choice are multiples, last but not least the use of pools with rapid difficulty changes, that seem to work better (higher speed on dashboard) with a single dedicated device, instead to use all devices and set the load-balancing with quota for every pool.
To make this, currently I run 4 instances of BFGMiner, each with its config file: it works well, but it's a little complicated to monitor them via RPC.
A single BFGMiner instance, with a single RPC to monitor, will be more simple to monitor

Greetings in advance

[giellepi]

Hi,
I'm optimizing a Titan for Nicehash.

I read I should add #xnsub for extranonce but I'm already using #skipcbcheck (got the hint reading KnC forums).

So, a couple of questions:

Is #skipcbcheck of any use for Nicehash?
What would be the right grammar to add both, "stratum+tcp://stratum.nicehash.com/#xnsub#skipcbcheck"?

Thanks

[Luke-Jr]

What would be the right grammar to add both, "stratum+tcp://stratum.nicehash.com/#xnsub#skipcbcheck"?

Yes

[kenshirothefist]

What would be the right grammar to add both, "stratum+tcp://stratum.nicehash.com/#xnsub#skipcbcheck"?

Luke-Jr, it would be very useful if you would include a section in README explaining all #xxx pool parameters and the correct usage of them (syntax). Currently these options/features are only mentioned in NEWS...

[Luke-Jr]

What would be the right grammar to add both, "stratum+tcp://stratum.nicehash.com/#xnsub#skipcbcheck"?

Luke-Jr, it would be very useful if you would include a section in README explaining all #xxx pool parameters and the correct usage of them (syntax). Currently these options/features are only mentioned in NEWS...

I agree it would be useful. Perhaps some non-coder can contribute these kind of changes?

[MathewCNichols]

Hello again,

I've setup a Tomato development environment for Shibby's latest build using GitHub. I built the 2.6.22.19 kernel with the Silicon Labs cp2101 driver option enabled as a module in the .config file. I then extracted the cp2101.ko.

If you want to use this kernel object, you can find it here: https://drive.google.com/file/d/0B9zGF2pK75nCUmEzZE5obTlCVFk/view?usp=sharing

Simply put it in your /opt directory if you mount Optware or Entware FS at boot time. In the web GUI, set Tomato to load the usbserial (included in firmware image at /lib/modules/2.6.22.19/kernel/drivers/usb/) and cp2101 kernel objects after boot with insmod. Use lsmod to make sure the kernel objects loaded. The device mounts to /dev/ttyUSB0. Make sure it is using the driver with "cat /proc/bus/usb/devices." The result should be "Driver=cp2101."

Alternatively you can use a firmware extract tool, insert the cp2101.ko into /lib/modules/2.6.22.19/kernel/drivers/usb/, rebuild, and call on usbserial and cp2101 kernel objects with insmod in the web GUI.

You can run bfgminer command line or JSON config file, just reference the /dev/ttyUSB0 device.

I'm currently hashing 2 GH/s or 1uBTC/hr!

One more feather in the cap for embedded Linux!

[rupy]

How can you underclock the Monarch?

--set bitforce:_cmd1=F?? --set bitforce:_cmd1=V?X

Are those in the 5.0.0 release?

[Luke-Jr]

How can you underclock the Monarch?

--set bitforce:_cmd1=F?? --set bitforce:_cmd1=V?X

Are those in the 5.0.0 release?

They go back all the way to 4.0.0

[rupy]

Ok, BFL is a bit slow then: https://forums.butterflylabs.com/the-monarch-discussion/8936-underclocking-psu.html

[Taugeran]

Well it's not like they've been known for making great haste at anything :/

[OgNasty]

How can you underclock the Monarch?

--set bitforce:_cmd1=F??

The first "?" is a frequency index, from 1 to F (hexadecimal).
Due to dynamic clocking in the MCU, there are no set frequency numbers.
The second "?" is either "X" for normal speed, or "D" for double speed.

You can also use --set bitforce:_cmd1=V?X to control voltage.
In this case, the "?" is one of:

• 0 = 0.54 V
  
• 1 = 0.55 V
  
• 2 = 0.56 V
  
• 3 = 0.58 V
  
• 4 = 0.6 V
  
• 5 = 0.62 V
  
• 6 = 0.63 V
  
• 7 = 0.643 V
  
• 8 = 0.65 V
  
• 9 = 0.662 V
  
• A = 0.67 V
  
• B = 0.68 V
  
• C = 0.7 V
  
• D = 0.72 V
  
• E = 0.73 V
  
• F = 0.75 V
  

Anyone want to throw out their lowest stable underclock command line?