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cgminer - multi-threaded multi-pool GPU, FPGA and CPU bitcoin miner.


cgminer [-DlmpPqUTouOchnV]


multi-threaded multi-pool GPU, FPGA and CPU bitcoin miner. Built with avalon avalon2
avalon4 bflsc bitfury cointerra drillbit hashfast icarus klondike mining support.


Options for both config file and command line:
--anu-freq <arg>
Set AntminerU1/2 frequency in MHz, range 125-500 (default: 250.0)

--api-allow <arg>
Allow API access only to the given list of [G:]IP[/Prefix] addresses[/subnets]

--api-description <arg>
Description placed in the API status header, default: cgminer version

--api-groups <arg>
API one letter groups G:cmd:cmd[,P:cmd:*...] defining the cmds a groups can use

Enable API, default: disabled

Enable API Multicast listener, default: disabled

--api-mcast-addr <arg>
API Multicast listen address

--api-mcast-code <arg>
Code expected in the API Multicast message, don't use '-'

--api-mcast-des <arg>
Description appended to the API Multicast reply, default: ''

--api-mcast-port <arg>
API Multicast listen port (default: 4028)

Allow API (if enabled) to listen on/for any address, default: only

--api-port <arg>
Port number of miner API (default: 4028)

--api-host <arg>
Specify API listen address, default:

--au3-freq <arg>
Set AntminerU3 frequency in MHz, range 100-250 (default: 225.0)

--au3-volt <arg>
Set AntminerU3 voltage in mv, range 725-850, 0 to not set (default: 775)

Adjust avalon overclock frequency dynamically for best hashrate

--avalon-cutoff <arg>
Set avalon overheat cut off temperature (default: 60)

Set fanspeed percentage for avalon, single value or range (default: 20-100)

Set frequency range for avalon-auto, single value or range

--avalon-options <arg>
Set avalon options baud:miners:asic:timeout:freq:tech

--avalon-temp <arg>
Set avalon target temperature (default: 50)

Set frequency range for Avalon2, single value or range, step: 25

Set Avalon2 core voltage, in millivolts, step: 125

Set Avalon2 target fan speed

--avalon2-cutoff <arg>
Set Avalon2 overheat cut off temperature (default: 98)

Set Avalon2 fan to fixed speed

--avalon2-polling-delay <arg>
Set Avalon2 polling delay value (ms) (default: 20)

Automatic adjust voltage base on module DH

Set Avalon4 core voltage, in millivolts, step: 125

Set frequency for Avalon4, 1 to 3 values, example: 445:385:370

Set Avalon4 target fan speed range

--avalon4-temp <arg>
Set Avalon4 target temperature (default: 42)

--avalon4-cutoff <arg>
Set Avalon4 overheat cut off temperature (default: 65)

--avalon4-polling-delay <arg>
Set Avalon4 polling delay value (ms) (default: 20)

--avalon4-ntime-offset <arg>
Set Avalon4 MM ntime rolling max offset (default: 4)

--avalon4-aucspeed <arg>
Set Avalon4 AUC IIC bus speed (default: 400000)

--avalon4-aucxdelay <arg>
Set Avalon4 AUC IIC xfer read delay, 4800 ~= 1ms (default: 19200)

Change multipool strategy from failover to even share balance

--benchfile <arg>
Run cgminer in benchmark mode using a work file - produces no shares

Display each benchfile nonce found

Run cgminer in benchmark mode - produces no shares

--bflsc-overheat <arg>
Set overheat temperature where BFLSC devices throttle, 0 to disable (default: 85)

--bitburner-voltage <arg>
Set BitBurner (Avalon) core voltage, in millivolts

--bitburner-fury-voltage <arg>
Set BitBurner Fury core voltage, in millivolts

--bitburner-fury-options <arg>
Override avalon-options for BitBurner Fury boards baud:miners:asic:timeout:freq

--bxf-bits <arg>
Set max BXF/HXF bits for overclocking (default: 54)

--bxf-debug <arg>
BXF: Debug all USB I/O, > is to the board(s), < is from the board(s) (default: 0)

--bxf-temp-target <arg>
Set target temperature for BXF/HXF devices (default: 82)

--bxm-bits <arg>
Set BXM bits for overclocking (default: 54)

--btc-address <arg>
Set bitcoin target address when solo mining to bitcoind (mandatory)

--btc-sig <arg>
Set signature to add to coinbase when solo mining (optional)

Use compact display without per device statistics

--cta-load <arg>
Set load for CTA devices, 0-255 range (default: 0)

--ps-load <arg>
Set power supply load for CTA devices, 0-100 range (default: 0)

Enable debug output

Automatically disable pools that continually reject shares

--drillbit-options <arg>
Set drillbit options <int|ext>:clock[:clock_divider][:voltage]

--drillbit-auto <arg>
Enable drillbit automatic tuning <every>:[<gooderr>:<baderr>:<maxerr>]

Do not redirect to stratum protocol from GBT

--hfa-hash-clock <arg>
Set hashfast clock speed (default: 550)

--hfa-fail-drop <arg>
Set how many MHz to drop clockspeed each failure on an overlocked hashfast device
(default: 10)

Set fanspeed percentage for hashfast, single value or range (default: 10-85)

--hfa-name <arg>
Set a unique name for a single hashfast device specified with --usb or the first
device found

Disable hashfast dynamic core disabling feature

--hfa-options <arg>
Set hashfast options name:clock (comma separated)

--hfa-temp-overheat <arg>
Set the hashfast overheat throttling temperature (default: 95)

--hfa-temp-target <arg>
Set the hashfast target temperature (0 to disable) (default: 88)

Set the hashratio clock frequency

--hotplug <arg>
Seconds between hotplug checks (0 means never check)

--klondike-options <arg>
Set klondike options clock:temptarget

Change multipool strategy from failover to quota based balance

--log|-l <arg>
Interval in seconds between log output (default: 5)

Minimise caching of shares for low memory applications

--monitor|-m <arg>
Use custom pipe cmd for output messages

--nfu-bits <arg>
Set nanofury bits for overclocking, range 32-63 (default: 50)

Impose small delays in networking to not overload slow routers

Don't submit shares if they are detected as stale

--osm-led-mode <arg>
Set LED mode for OneStringMiner devices (default: 4)

--pass|-p <arg>
Password for bitcoin JSON-RPC server

Force verbose mode and output per-device statistics

Verbose dump of protocol-level activities

Disable logging output, display status and errors

--quota|-U <arg>
quota;URL combination for server with load-balance strategy quotas

Disable all output

--rock-freq <arg>
Set RockMiner frequency in MHz, range 125-500 (default: 270.0)

--rotate <arg>
Change multipool strategy from failover to regularly rotate at N minutes

Change multipool strategy from failover to round robin on failure

Set a time of day in HH:MM to start mining (a once off without a stop time)

Set a time of day in HH:MM to stop mining (will quit without a start time)

Append share log to file

--shares <arg>
Quit after mining N shares (default: unlimited)

--socks-proxy <arg>
Set socks4 proxy (host:port)

--suggest-diff <arg>
Suggest miner difficulty for pool to user (default: none)

Use system log for output messages (default: standard error)

Temperature where a device will be automatically disabled, one value or comma
separated list (default: 0)

Disable ncurses formatted screen output

--url|-o <arg>
URL for bitcoin JSON-RPC server

--usb <arg>
USB device selection

--user|-u <arg>
Username for bitcoin JSON-RPC server

--userpass|-O <arg>
Username:Password pair for bitcoin JSON-RPC server

Log verbose output to stderr as well as status output

Use extra wide display without toggling

Display extra work time debug information

Options for command line only:
--config|-c <arg>
Load a JSON-format configuration file See example.conf for an example

--default-config <arg>
Specify the filename of the default config file Loaded at start and used when
saving without a name.

Print this message

Display all USB devices and exit

Display version and exit

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