CP Optimizer File Format Reference Manual

This is the CP Optimizer File Format Reference Manual.

CP Optimizer file format syntax
This section describes the elements of the CPO file format such as statements, expressions, types, variables, constants or directives, and how to use them.
Functions
The following functions can be used in a CP Optimizer model file (CPO file):
The search section
A CPO file may contain an optional search section which specifies a variable fixing strategy that CP Optimizer should use while searching for solutions. The strategy is described by search phases.
The startingPoint section
The optional section startingPoint specifies a (possibly partial) solution that could be used by CP Optimizer to start the search.
The KPIs section
Key Performance Indicators (KPIs) are expressions whose value somehow characterize a solution and its quality. They differ from objective expressions: objective expressions are passed to minimize or maximize and CP Optimizer actively works on improving their value. KPIs are not actively improved in that sense: achieving good values of KPIs is usually a side product of achieving good objective value. For example, objective could be to minimize total duriation of a schedule and KPI could be the total idle time of a bottleneck machine.
The parameters section
The optional section parameters specifies the CP Optimizer parameters that should be used for solving the model.
The internals section
The section internals contains internal data of CP Optimizer produced by the model dump function: IloCP::dumpModel in the C++ API, IloCP.dumpModel in the Java™ API, CP.DumpModel in C# API or oplrun -d for OPL models.

Parent topic: CP Optimizer