Auteur : Christian Schulte (KTH (Stockholm) et Swedish Institute of Computer Science) Titre : Gecode - an open constraint solving library Abstract : Gecode is a widely used toolkit for developing constraint-based systems and applications. Gecode provides a constraint solver with stateof-theart performance while being modular and extensible. Gecode is: open (documented interfaces support tasks from modeling to implementing new variables, constraints, search engines, ...), free (MIT license), portable (standard C++), accessible (extensive tutorial and reference documentation), efficient (excellent performance, has won the 2008-2012 MiniZinc challenges in all categories), and parallel (exploits today's multicore hardware). The talk provides a brief introduction into constraint programming, followed by an overview of what Gecode is, what one can do with it, and what are the basic ideas behind its architecture.