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cltunaminer core

Experimental OpenCL based miner for TUNA

Please keep in mind this is an early experimental version of the miner, please report issues and the hash rates you get with your devices to the issue tracker on Github. Let's make it compatible with as many devices and operating systems as possible to improve decentralization!

this miner core can only calculate hashes, for submitting transactions it needs this fork of the official repo: https://github.com/nullhashpixel/fortuna

tips: $gputunaminer

Building (Linux)

1) Requirements

Only tested on Linux (Ubuntu 20) so far. NOT compatible with WSL, Windows users please compile it with Visual Studio, see below.

For NVIDIA GPUs, the proprietary graphics driver is needed. On Ubuntu search for "Additional drivers" and select the latest Nvidia version. NOT the line which contains "Nouveau". After this, run:

apt update
apt install build-essential opencl-headers clinfo nvidia-opencl-dev

and then check with

clinfo

if number of platforms is > 0. (It is 1 in most cases with a single GPU and no special hardware)

2) Download the repository

git clone https://github.com/nullhashpixel/cltunaminer.git
cd cltunaminer

3) Compiling from source

make

4) Running the miner core

./cltuna

Building (Windows)

1) Requirements

  • Install CUDA Toolkit 12.2 from

https://developer.nvidia.com/cuda-downloads?target_os=Windows&target_arch=x86_64&target_version=11&target_type=exe_local

During the installation select "Building C++", no other options. This alone is a 18 GB download.

2) Download the repository

If you have git installed, run:

git clone https://github.com/nullhashpixel/cltunaminer.git
cd cltunaminer

otherwise you can also just download the repository.

3) Create VS project

  • Create an empty project (search for "blank solution")

  • copy the sha256.h to "Header files", the "sha256.c"+"main.c" to "Source files"

  • Right click on your project name in the right panel, select properties

  • Add the library and include paths of you CUDA Toolkit installation, the paths are not always exactly the same, but by default look like:

  • Library path: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.2\lib\x64

  • Include path: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.2\include

The Library path should contain an "OpenCL.lib" The include path should contain a folder "CL" with a file "cl.h"

4) Compile (green play symbol)

This will create an exe file inside your project directory in a subfolder called Debug or Release

5) Copy the executable

Copy the executable into your cltunaminer/ directory, where the sha256_opencl.cl is. Run it from there.

Start mining with GPU

To be able to mine, you also need the custom fork of the TypeScript transaction building code from: https://github.com/nullhashpixel/fortuna

  • Install and compile the miner core, see above steps 1-4

  • Install the fortuna code and setup your wallet as described in the fortuna repository

  • Start the mining core(s): ./cltuna

Screenshot miner core started

  • Add the hostname(s) of your miner cores to the main.ts file of the mining code in the cltunaminer directory of the TypeScript code

Simple example for running with 1 local GPU:

const miners = [
        {port: 2023}
]

Running the code on two different machines in your network:

const miners = [
        {hostname: "192.168.0.100", port: 2023},
        {hostname: "192.168.0.101", port: 2023}
]

  • (in a different terminal window): Start the TypeScript mining script with deno: deno task cltunaminer mine

  • check the window of your GPU miner core, it should show you hash rates, estimates for how often solutions are found and the current difficulty Screenshot miner core running

Hash rates for GPUs

model OS hash rate
GeForce GTX 1650 Ti (laptop card) Linux 356 MH/s
RTX 3050 Ti Linux 373 MH/s
RX580 Windows 450MH/s
GTX 1070 Linux 500 MH/s
RTX 3060 TI Linux/Windows 980 MH/s
RTX 3060 Ti Linux 970MH/s
RTX A4000 Linux 1.0 GH/s
RTX 2080S Linux 1.1GH/s
RTX 3080TI Linux 1.6 GH/s
RTX 3060 Linux 1.1 GH/s
RTX 3090 Linux 1.8 GH/s
RTX 6000 Linux 3.5 GH/s
L40 Linux 3.7 GH/s
RTX 4090 Linux 3.8 GH/s

Advanced stuff

Running the miner core and making it available to outside machines in the network on port 12345

./cltuna 0.0.0.0 12345

Benchmark

Running the benchmark will not wait for connection from the mining script, just computes the hash rate.

./cltuna benchmark

Automatic restart on crashes

If you experience occasional crashes of the miner, consider running it in an infinite loop with a delay.

while true; do ./cltuna; sleep 1; done

Changelog

v1.2: 23/09/06 fix too low entropy bug
v1.1: 23/09/05 Windows compatibility
v1.0: 23/09/04 initial release

Known bugs/limitations

Multi GPU support
AMD cards untested

Disclaimer

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.