rieMiner

rieMiner is a Riecoin miner supporting both solo and pooled mining, and can also be run standalone for prime constellation record attempts. Find the latest binaries here for Linux and Windows.

This README is intended for advanced users and will mainly only describe the different configuration options and give information for developers like how to compile or contribute. For more practical information on how to use rieMiner like configuration file templates and mining or record attempts guides, visit the rieMiner's page. Before asking for any help or reporting an issue, ensure that you followed the instructions correctly, and try first to solve the issues by yourself.

Happy Mining or Good Luck on finding a new record!

Minimum requirements

• Windows 8.1 or recent enough Linux;
• Virtually any usual 32 or 64 bits CPU (should work for any x86 since Pentium Pro and recent ARMs);
• 512 MiB of RAM (the prime table limit must be manually set at a lower value in the options);
• We only provide binaries for Windows and Linux x64. In the other cases, you must have access to an appropriate build environment and compile yourself the code.

Recommended:

• Windows 11 (latest version) or Debian 11;
• Recent x64 with AVX2 (Intel Haswell, AMD Zen2, or better), with 8 cores or more;
• 8 GiB (16 if using more than 8 cores) of RAM or more.

Compile this program

rieMiner should be compilable on recent Linuxes. Building on another system is not supported, and Debian 11 Amd64 is our reference OS. It should be used for cross compiling in order to generate binaries for other systems, that can be distributed. If you don't have Debian 11, you can install it in a virtual machine, as Dual Boot, or in a spare machine.

Native building on Debian/Ubuntu

Here is how to build rieMiner to run it directly on the same computer. Libraries are dynamically linked and G++ optimizes the build for your CPU, though this does actually not affect performance much.

You will need g++, as, m4, make, and the following dependencies:

• GMP
• libSSL
• cURL
• NLohmann Json

On a recent enough Debian or Ubuntu, you can easily install these if needed by doing as root:

apt install g++ make m4 git libgmp-dev libssl-dev libcurl4-openssl-dev nlohmann-json3-dev

And on an Arch based distribution:

pacman -S gcc make m4 git gmp openssl curl nlohmann-json

For Apple Silicon:

brew install gcc make m4 git gmp openssl@1.1 curl nlohmann-json

Then, download the source files, go/cd to the directory:

git clone https://github.com/Pttn/rieMiner.git
cd rieMiner

Finally, do a simple make:

make

For Apple Silicon:

make apple_silicon

For other Linux, executing equivalent commands (using pacman instead of apt,...) should work.

Static/Cross Compiling

To generage binaries that can be distributed, cross compiling is done on Debian 11 Amd64. This statically links the libraries and the compiler does not optimize for a particular processor. Here is how you can do it yourself.

Firstly, make sure that you are running Debian 11 x64. You may need to install some basic tools,

apt install make m4 git wget lzip

You will also need appropriate compilers depending on the target system, use this table to find out what to install.

Target	Package to install via Apt
Windows x64	g++-mingw-w64-x86-64-posix
Linux x64	none
Linux Arm64	g++-aarch64-linux-gnu
Android Arm64	not in repository, see below

Now, get the rieMiner's source code.

git clone https://github.com/Pttn/rieMiner.git
cd rieMiner

A script that retrieves the dependencies' source codes from Riecoin.dev and compiles them is provided. Run the script with

sh GetDependencies.sh

A folder named rieMiner0.93aDeps must have appeared. We assume that you are in it when starting a subsection below.

cd rieMiner0.93aDeps

If you are going to compile for several systems, doing make cleans in the rieMiner's directory will be very useful between builds (it will not delete rieMiner binaries). If you already built the dependencies once, you can usually reuse existing incs and libs folders and skip several steps, though the dependencies may be updated once a while on Riecoin.dev.

For Windows x64, Linux x64, or Linux Arm64

Here are the instructions to generate a binary for Windows x64. Just a few adaptations are needed for other systems. In the dependencies folder, build them by doing

sh Build.sh Win64

The incsWin64 and libsWin64 folders must have appeared next to the dependencies folder (they will have another suffix when building dependencies for other systems).

Now, build rieMiner itself.

cd ..
make Win64

or use Win64AVX2 for AVX2 support.

For Linux x64, do the same steps, but with Deb64 or Deb64AVX2 instead of Win64. Note that GLibC is still linked dynamically for Linux builds so rieMiner may fail to run on very old Linux distributions.

For Linux Arm64, use Arm64 instead of Win64.

For Android Arm64

Note that this will not produce an Apk file, only a binary that can be launched in something like Termux. There is also no built-in temperature control and you are responsible that the heat does not damage your device.

The compiler is not included in the Debian's repositories and you will need to install it manually: get the Android NDK Tools from here.

You should now have an android-ndk-r25 folder or similar somewhere, remember its path.

You must now choose your target Android API Level. Each level correspond to a minimum Android version with which an application is compatible, for example API Level 30 corresponds to Android 11. A list can be found here. By default, it is set to 26.

Replace accordingly the export ANDROIDAPI and export NDK lines in the Build.sh file. Then, build the dependencies.

sh Build.sh And64

The incsAnd64 and libsAnd64 folders must have appeared next to the dependencies folder. You must now adapt the And64: CXX = line in the rieMiner's Makefile (outside the dependencies folder) before building rieMiner itself.

cd ..
make And64

Configure this program

rieMiner uses a text configuration file, by default a "rieMiner.conf" file next to the executable. It is also possible to use custom paths, examples:

./rieMiner config/example.txt
./rieMiner "config 2.conf"
./rieMiner /home/user/rieMiner/rieMiner.conf

For other Modes or more options, you need to know how to write a configuration file yourself. The rieMiner.conf syntax is very simple: each option is set by a line like

Option = Value

It is case sensitive. A line starting with # will be ignored, as well as invalid ones. Spaces or tabs just before or after = are also trimmed. If an option is missing, the default value(s) will be used. If there are duplicate lines for the same option, the last one will be used.

Alternatively, command line options can be used like

./rieMiner config.conf Option1=Value1 "Option2 = Value2" Option3=WeirdValue\!\!

A configuration file path must always be provided. If the file exists, its options will be parsed first, then the command line ones, so the latter will override the common ones from the file. Else, it is just ignored, so just put a dummy value if you want to configure only by command line. The syntax of a command line option is the same as a line of the configuration file. You are responsible to correctly take care of special characters if needed.

Modes

rieMiner proposes the following Modes depending on what you want to do. Use the Mode option to choose one of them (by default, Benchmark), below are the values to use.

• Solo: solo mining via GetBlockTemplate;
• Pool: pooled mining using Stratum;
• Benchmark: test performance with a simulated and deterministic network (use this to compare different settings or share your benchmark results);
• Search: pure prime constellation search (useful for record attempts).

Solo and Pooled Mining options

• Host: IP of the Riecoin server. Default: 127.0.0.1 (your computer);
• Port: port of the Riecoin server (same as rpcport in riecoin.conf for solo mining). Default: 28332 (default RPC port for Riecoin Core);
• Username: username used to connect to the server (same as rpcuser in riecoin.conf for solo mining). Default: empty;
• Password: password used to connect to the server (same as rpcpassword in riecoin.conf for solo mining). Default: empty;
• PayoutAddress: payout address for solo mining. You can use Bech32 "ric1" addresses (only lowercase). Default: a donation address;
• Rules: for solo mining, add consensus rules in the GetBlockTemplate RPC call, each separated by a comma. segwit must be present. You should not touch this unless a major Riecoin upgrade is upcoming and it is said to use this option. Default: segwit.

Benchmark and Search Modes options

• Difficulty: for Benchmark and Search Modes, sets the difficulty (which is the number of binary digits, it must be at least 128). It can take decimal values and the numbers will be around 2^Difficulty. Default: 1024;
• TupleLengthMin: for Search Mode, the base prime of tuples of at least this length will be shown. 0 for the length of the constellation pattern - 1 (minimum 1). Default: 0;
• BenchmarkBlockInterval: for Benchmark Mode, sets the time between blocks in s. <= 0 for no block. Default: 150;
• BenchmarkTimeLimit: for Benchmark Mode, sets the testing duration limit in s. <= 0 for no time limit. Default: 86400;
• BenchmarkPrimeCountLimit: for Benchmark Mode, stops testing after finding this number of 1-tuples. 0 for no limit. Default: 1000000;
• TuplesFile: for Search Mode, write tuples of at least length TupleLengthMin to the given file. Default: Tuples.txt.

More options

• Threads: number of threads used for mining, 0 to autodetect. Default: 0;
• PrimeTableLimit: the prime table used for mining will contain primes up to the given number. Set to 0 to automatically calculate according to the current Difficulty. You can try a larger limit as this will reduce the ratio between the n-tuple and (n + 1)-tuple counts (but also the candidates/s rate). Reduce if you want to lower memory usage. Default: 0;
• SieveBits: the size of the primorial factors table for the sieve is 2^SieveBits bits. 25 seems to be an optimal value, or 24 if there are many SieveWorkers. Though, if you have less than 8 MiB of L3 cache, you can try to decrement this value. Default: 25 if SieveWorkers <= 4, 24 otherwise;
• SieveIterations: how many times the primorial factors table is reused for sieving. Increasing will decrease the frequency of new jobs, so less time would be "lost" in sieving, but this will also increase the memory usage. It is not clear however how this actually plays performance wise, 16 seems to be a good value. Default: 16;
• SieveWorkers: the number of threads to use for sieving. Increasing it may solve some CPU underuse problems, but will use more memory. 0 for choosing automatically. Default: 0;
• RestartDifficultyFactor: if the Difficulty changes by the given factor, the miner will restart. Useful to let it retune some parameters once a while to optimize for lower or higher Difficulties as it varies. This value must be at least 1 and the closer it is to 1 and the more often there will be restarts. Default: 1.03;
• ConstellationPattern: which sort of constellations to look for, as offsets separated by commas. Note that they are not cumulative, so '0, 2, 4, 2, 4, 6, 2' corresponds to n + (0, 2, 6, 8, 12, 18, 20). If empty (or not accepted by the server), a valid pattern will be chosen (0, 2, 4, 2, 4, 6, 2 in Search and Benchmark Modes). Default: empty;
• PrimorialNumber: Primorial Number for the sieve process. Higher is better, but it is limited by the target offset limit. 0 to set automatically, it should be left as is. Default: 0;
• PrimorialOffsets: list of offsets from a primorial multiple to use for the sieve process, separated by commas. If empty, a default one will be chosen if possible (see main.hpp source file), otherwise rieMiner will not start (if the chosen constellation pattern is not in main.hpp). Default: empty;
• RefreshInterval: refresh rate of the stats in seconds. <= 0 to disable them and only notify when a long enough tuple or share is found, or when the network finds a block. Default: 30;
• GeneratePrimeTableFileUpTo: if > 1, generates the table of primes up to the given limit and saves it to a PrimeTable64.bin file, which will be reused instead of recomputing the table at every miner initialization. This does not affect mining, but is useful if restarting rieMiner often with large Prime Table Limits, notably for debugging or benchmarks. However, the file will take a few GB of disk space for large limits and you should have a fast SSD. Default: 0;
• RawOutput: if you need to disable the coloring in the outputs, set this to Yes. Default : disabled;
• APIPort: sets the port to use for the rieMiner's API server. 0 to disable the API. Default : 0;
• KeepRunning: if you need to continue running the miner even if you find a tuple in Search mode, set this to Yes Default : disabled.

Interface

For now, rieMiner only works in a console. First, it will summarize the settings and print some information about the miner initialization, and you should look there to ensure that your settings were taken in account.

During mining, rieMiner will regularly print some statistics (use the RefreshInterval parameter to change the frequency). They consist of the candidates per second speed c/s and the 0 to 1-tuples/s ratio r. The estimate of the average time to find a block (for pooled mining, the earnings in RIC/day) is also shown. The number of tuples found since the start of mining is also shown (for pooled mining, the numbers of valid and total shares).

rieMiner will also notify if it found a block or a share, and if the network found a new block. If it finds a block or a share, it will tell if the submission was accepted (solo mining only) or not by the server.

In Benchmark and Search Modes, the behavior is essentially the same as Solo mining. In mining Modes, the statistics are based on the tuples found during the latest five blocks, including the current one, while in the other Modes, everything since the beginning is taken in account.

Troubleshooting

rieMiner writes in a debug.log file, which contains more detailed outputs that can be useful when debugging rieMiner or asking for help. Note that the logging will not properly work if multiple instances of rieMiner are running.

API

A basic API server is implemented in rieMiner. Currently, it only provides simple statistics and the version, and it will be improved and completed in the future. Use the APIPort option to choose the port. Methods:

• getstats/getstatsjson: getstats returns the following stats in a simple format (one line per entry) for easy parsing: whether the miner is running (true of false), since how much time in s, the candidates/s, the ratio, the blocks/day, the mining power, the number of shares found and the number of rejected shares (both always 0 if not pooled mining). getstatsjson formats these in JSON;
• getminerinfo/getminerinfojson: getminerinfo returns the miner's name and the version (one line per entry). getminerinfojson formats these in JSON.

If you have netcat, you can do for example

echo -n getstatsjson | nc localhost 2001

to get

{"running": true, "uptime": 1547.53, "cps": 15286.2, "r": 16.5296, "bpd": 3.91715, "miningpower": 0.433537, "shares": 169, "sharesrejected": 0}

Developers and license

• Pttn, author and maintainer, contact: dev at Pttn dot me

This work is released under the MIT license, except the modified GMP code which is licensed with the LGPL license.

Notable contributors

• Michael Bell: assembly optimizations, improvements of work management between threads, and some more.

Versioning

The version naming scheme is 0.9, 0.99, 0.999 and so on for major versions, analogous to 1.0, 2.0, 3.0,.... The first non 9 decimal digit is minor, etc. For example, the version 0.9925a can be thought as 2.2.5a. A perfect bug-free software will be version 1. No precise criteria have been decided about incrementing major or minor versions for now.

Contributing

Feel free to do a pull request or open an issue, and I will review it. I am open for adding new features, but I also wish to keep this project minimalist. Any useful contribution will be welcomed.

By contributing to rieMiner, you accept to place your code in the MIT license.

Donations to the Riecoin Project are welcome:

• Riecoin: ric1qr3yxckxtl7lacvtuzhrdrtrlzvlydane2h37ja
• Bitcoin: bc1qr3yxckxtl7lacvtuzhrdrtrlzvlydaneqela0u

Testing

Code for a testing server is provided. It acts like a mining pool, and tests the rieMiner's behavior in various network situations like whether it restarts properly when the Difficulty increases a lot or if it reconnects when there are disconnects. It was only tested on Debian 11. The server can be built and run with

make testServer
./rieMinerTestServer

Then, launch rieMiner using the Pool Mode and Port 3004. Watch whether strange things happen, if there are crashes or deadlocks, test with several machines and different rieMiner parameters, run several loops, also do not hesitate to changes some parameters in the code...

Quick contributor's checklist

• Your code must compile and work on recent Debian based distributions, and Windows using MSYS;
• If modifying the miner, you must ensure that your changes do not cause any performance loss. You have to do proper and long enough before/after benchmarks;
• Document well non trivial contributions to the miner so other and future developers can understand easily and quickly the code;
• rieMiner must work for any realistic setting, you should make tests with the Test Server;
• Ensure that your changes did not break anything, even if it compiles. Examples (if applicable):
  • There should never be random (or not) segmentation faults or any other bug, try to do actual mining with Gdb, debugging symbols and Debug Mode enabled during hours or even days to catch possible bugs;
  • Ensure that valid work is produced (pools and Riecoin Core must not reject submissions);
  • Mining must stop completely while disconnected and restart properly when connection is established again.
• Follow the style of the rest of the code (curly braces position, camelCase variable names, tabs and not spaces, spaces around + and - but not around * and /,...).
  • Avoid using old C style and prefer modern C++ code;
  • Prefer longer and explicit variable names (except for loops indexes where single letter variables should be used in most cases).

Resources

• Riecoin website
  • rieMiner's page
  • Explanation of the miner algorithm, you can also learn the theoretics behind some options
• Bitcoin Wiki - Getblocktemplate
• BIP141 (Segwit)
• Bitcoin Wiki - Stratum