cpuminer-gc3355

CPUMiner with GridSeed GC3355 support

How to compile from git (Debian-based):

apt-get update
apt-get install -y build-essential libtool libcurl4-openssl-dev libjansson-dev libudev-dev libncurses5-dev autoconf automake
git clone https://github.com/siklon/cpuminer-gc3355
cd cpuminer-gc3355
./autogen.sh
./configure CFLAGS="-O3"
make

GC3355-specific options:

--gc3355=DEV0,DEV1,...,DEVn      				enable GC3355 chip mining mode (default: no)
--freq=FREQUENCY  								set GC3355 core frequency in NONE dual mode (default: 600)
--gc3355-freq=DEV0:F0,DEV1:F1,...,DEVn:Fn		individual frequency setting
--gc3355-freq=DEV0:F0:CHIP0,...,DEVn:Fn:CHIPn	individual per chip frequency setting
--gc3355-autotune  								auto overclocking each GC3355 chip (default: no)

If you cannot find any /dev/ttyUSB or /dev/ttyACM, it related to running cgminer, this can easily be fixed by rebooting the system. You do not need the set the # of chips for USB Miner or G-Blade, it is detected automatically Example with per chip tuned frequency setting, USB miner (ttyACM0) and G-Blade (ttyACM1, ttyACM2):

./minerd --gc3355=/dev/ttyACM0,/dev/ttyACM1,/dev/ttyACM2 --freq=850 --gc3355-freq=/dev/ttyACM0:900,/dev/ttyACM0:875:1,/dev/ttyACM0:875:2,/dev/ttyACM1:825,/dev/ttyACM1:1025:32,/dev/ttyACM2:825,/dev/ttyACM2:850:10

The syntax is:

--gc3355-freq=DEV0:F0:CHIP0,...,DEVn:Fn:CHIPn
where n = 0,1,...,chip_count-1
USB miner -> chip_count = 5
G-Blade -> chip_count = 40

Example script with backup pools for *nix:

while true ; do
./minerd --gc3355=/dev/ttyACM0,/dev/ttyACM1,/dev/ttyACM2 --gc3355-freq=/dev/ttyACM0:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool1:port --userpass=user:pass --retries=1
./minerd --gc3355=/dev/ttyACM0,/dev/ttyACM1,/dev/ttyACM2 --gc3355-freq=/dev/ttyACM0:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool2:port --userpass=user:pass --retries=1
./minerd --gc3355=/dev/ttyACM0,/dev/ttyACM1,/dev/ttyACM2 --gc3355-freq=/dev/ttyACM0:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool2:port --userpass=user:pass --retries=1
done

Example script with backup pools for Windows:

:loop
minerd.exe --gc3355=\\.\COM1,\\.\COM2,\\.\COM3 --gc3355-freq=\\.\COM1:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool1:port --userpass=user:pass --retries=1
minerd.exe --gc3355=\\.\COM1,\\.\COM2,\\.\COM3 --gc3355-freq=\\.\COM1:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool2:port --userpass=user:pass --retries=1
minerd.exe --gc3355=\\.\COM1,\\.\COM2,\\.\COM3 --gc3355-freq=\\.\COM1:800 --gc3355-autotune --freq=850 --url=stratum+tcp://pool3:port --userpass=user:pass --retries=1
goto loop
pause

API

The API is accessible on port 4028 (by default), to change the port pass --api-port=PORT One command is currently supported:

{"get":"stats"}\n

This will output a JSON encoded array with mining stats for each GC3355 chip. To translate the JSON keys, please refer to cpu-miner.c:66 Do not forget the newline (\n), it is used to tell the API to stop reading and execute the command! Windows is not supported.

Binaries

Windows: https://www.dropbox.com/s/ttqa9p851siz8oi/minerd-gc3355.zip

Raspberry PI: https://www.dropbox.com/s/xc3lvysi8vtrt00/minerd-gc3355

Support

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