Abstract
Managing learnt clauses among a parallel, memory shared, SAT solver is a crucial but difficult task. Based on some statistical experiments made on learnt clauses, we propose a simple parallel version of Glucose that uses a lazy policy to exchange clauses between cores. This policy does not send a clause when it is learnt, but later, when it has a chance to be useful locally. We also propose a strategy for clauses importation that put them in ”probation” before a potential entry in the search, thus limiting the negative impact of high importation rates, both in terms of noise and decreasing propagation speed.
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Audemard, G., Simon, L. (2014). Lazy Clause Exchange Policy for Parallel SAT Solvers. In: Sinz, C., Egly, U. (eds) Theory and Applications of Satisfiability Testing – SAT 2014. SAT 2014. Lecture Notes in Computer Science, vol 8561. Springer, Cham. https://doi.org/10.1007/978-3-319-09284-3_15
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DOI: https://doi.org/10.1007/978-3-319-09284-3_15
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