: possible options to be used when compiling.: a Python file to be executed, describing a model in P圜SP3.Present in directories pycsp3/solvers/ace and pycsp3/solvers/choco.įor example, for running ACE on the XCSP3 instance 'zebra.xml', just execute: It is also immediate to run ACE or Choco on XCSP3 instances (files) as the respective executables (jar files) are Of course, it is possible to launch on generated XCSP3 instances (files) any solver that recognizes the XCSP3 format.įor example, see the solvers involved in the 2022 Competition. Information about how piloting these embedded solvers can be found in this document. the constraint solver Choco, with the option -solver=choco.the constraint solver ACE (AbsCon Essence), with the option -solve or the option -solver=ace.a dedicated website with more than 60 Jupyter notebooks is availableĪt this stage, one can run two embedded solvers:.In format XCSP3 see Currently, P圜SP3 is targeted to XCSP3-core, which allows us to use integer variables (with finite domains) and popular constraints. COPs (Constraint Optimization Problems).CSPs (Constraint Satisfaction Problems).With P圜SP3, it is possible to generate instances of: This is Version 2.1 of P圜SP3, a library in Python 3 (version 3.6 or later) for modeling combinatorial constrained problems see P圜SP3 is inspired from both JvCSP3 (a Java-based API) and Numberjack.