OP Engine
Lightweight multiphysics solver core for time-dependent systems. Supports explicit ODE solvers and IMEX/operator-splitting schemes for PDE-like models with pluggable backends.
OP Engine (Operator-Partitioned Engine) is a lightweight multiphysics solver core for time-dependent systems. The engine supports explicit ODE solvers and IMEX/operator-splitting schemes for PDE-like models, enabling composition of fast subsystem solvers for stiff multi-physics problems. Framework-agnostic; separates state/time management (ModelCore) from stepping logic (CoreSolver).
Designed to consume model specifications produced by OP System and serve as the forward-simulation backend for campaign orchestrators like FlepiMoP2.