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arXiv · 1502.03986

A Multicore Tool for Constraint Solving

Roberto Amadini·Maurizio Gabbrielli·Jacopo Mauro
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Abstract

*** To appear in IJCAI 2015 proceedings *** In Constraint Programming (CP), a portfolio solver uses a variety of different solvers for solving a given Constraint Satisfaction / Optimization Problem. In this paper we introduce sunny-cp2: the first parallel CP portfolio solver that enables a dynamic, cooperative, and simultaneous execution of its solvers in a multicore setting. It incorporates state-of-the-art solvers, providing also a usable and configurable framework. Empirical results are very promising. sunny-cp2 can even outperform the performance of the oracle solver which always selects the best solver of the portfolio for a given problem.

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Roberto Amadini, Maurizio Gabbrielli, Jacopo Mauro. 2015-02-13. A Multicore Tool for Constraint Solving. https://arxiv.org/abs/1502.03986

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