PrecPack is an efficient open-source exact solver for bin packing with generalized precedence constraints.
- Repository: github.com/Sunkanghong-Wang/PrecPack
- Paper: arXiv:2609.17368
The solver handles generalized precedence-constrained bin packing together with assembly line balancing and precedence-constrained bin packing as special cases. Its C++ implementation combines branch-bound-and-remember search, dominance rules, conflict-aware lower bounds, optional column-generation strengthening, independent solution checking, and reproducible batch execution.