Installation

The LODA command-line tool lets you explore, evaluate, and mine programs for integer sequences. It’s available for Linux, macOS, and Windows. Follow the instructions below to get started on your platform.

If you only want to contribute compute power for program mining, you can join the LODA project on BOINC and skip manual installation.

Linux & macOS

Make sure you have git installed. Then run this command in your terminal:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/loda-lang/loda-cpp/main/install.sh)"

Windows

1. Install Git for Windows.
2. Open the Git CMD app from your Start menu.
3. Run these commands:

md "%USERPROFILE%\loda\bin"
cd "%USERPROFILE%\loda\bin"
curl -fsSLo loda.exe https://github.com/loda-lang/loda-cpp/releases/latest/download/loda-windows.exe
loda setup

Getting Started

Try evaluating a classic sequence. For example, to compute the Fibonacci numbers:

loda eval A000045

To start mining for new or better programs:

loda mine         # Single core
loda mine -p      # Multi-core (parallel)

To upgrade to the latest version, run:

loda upgrade

For a full list of commands and options, run loda --help or see below:

Usage: loda <command> <options>

Commands:
  eval      <program>  Evaluate an integer sequence program (see -t,-b,-s)
  check     <program>  Verify correctness of an integer sequence program (see -b)
  mine                 Mine programs for integer sequences (see -i,-p,-P,-H)
  submit  <file> [id]  Submit an integer sequence program to the central repository
  export    <program>  Export a program and print the result (see -o,-t)
  optimize  <program>  Optimize a program and print the result
  minimize  <program>  Minimize a program and print the result (see -t)
  profile   <program>  Measure program evaluation time (see -t)
  fold <program> <id>  Fold a subprogram given by ID into a seq-operation
  unfold    <program>  Unfold the first seq-operation of a program
  mutate    <program>  Mutate a program to mine for integer sequences
  setup                Run interactive setup to configure LODA
  update               Update integer sequence and program data
  upgrade              Check for and install the latest LODA version

Targets:
  <file>               Path to a LODA file (file extension: *.asm)
  <id>                 ID of an integer sequence (example: A000045)
  <program>            Either an <file> or an <id>

Options:
  -t <number>          Number of sequence terms (default: 8)
  -b                   Print result in the OEIS b-file format
  -o <string>          Export format (formula,loda,pari,range)
  -d                   Export with dependencies to other programs
  -s                   Evaluate program and return number of execution steps
  -c <number>          Maximum number of execution steps (no limit: -1)
  -m <number>          Maximum number of used memory cells (no limit: -1)
  -z <number>          Maximum evaluation time in seconds (no limit: -1)
  -l <string>          Log level (values: debug,info,warn,error,alert)
  -i <string>          Name of miner configuration from miners.json
  -p                   Parallel mining using default number of instances
  -P <number>          Parallel mining using custom number of instances
  -H <number>          Number of mining hours (default: unlimited)