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COIN-OR

zef:antononcube

Raku-COIN-OR

Raku interface to the COIN-OR numerical optimization solver.

The initial API wraps CBC's portable C interface through Raku NativeCall. It supports constructing and solving linear mixed-integer models; see F<examples/small-model.raku>.

Installation

macOS

#!/bin/bash

# Ensure Homebrew is up to date
brew update

# Install all 4 core COIN-OR packages
brew install coinutils clp cbc ipopt

# Verify installations
echo -e "\n--- Verification ---"
for cmd in cbc clp ipopt; do
  if command -v $cmd &> /dev/null; then
    echo "✅ $cmd installed: $($cmd --version 2>&1 | head -n 1)"
  else
    echo "❌ $cmd failed to install"
  fi
done

Homebrew installs formulae below an architecture-dependent prefix (normally /opt/homebrew on Apple Silicon and /usr/local on Intel). Configure the binding with either of these optional environment variables before running Raku:

# Recommended: ask Homebrew for the exact CBC C-interface library.
export COIN_OR_CBC_LIBRARY="$(brew --prefix cbc)/lib/libCbcSolver.dylib"

# Alternative: provide the containing directory; the package chooses
# libCbcSolver.dylib on macOS (and libCbcSolver.so on Linux).
export COIN_OR_LIBRARY_DIR="$(brew --prefix cbc)/lib"

COIN_OR_CBC_LIBRARY takes precedence over COIN_OR_LIBRARY_DIR. Neither is needed on a system where the dynamic linker can already locate libCbcSolver. For a persistent macOS configuration, add the preferred export line to ~/.zprofile (zsh's login-shell configuration) and start a new terminal.

Ubuntu Linux

sudo apt update
# Install CBC (Mixed-Integer Linear Programming Solver)
sudo apt install coinor-cbc coinor-libcbc-dev

# Install CLP (Linear Programming Solver)
sudo apt install coinor-clp coinor-libclp-dev

# Install Ipopt (Nonlinear Programming Solver)
sudo apt install coinor-ipopt coinor-libipopt-dev

Raku package

From Zef ecosystem:

zef install COIN-OR

From GitHub:

zef install https://github.com/antononcube/Raku-COIN-OR

Examples

Here are Raku scripts with worked examples: