{"id":162667,"date":"2012-05-01T00:00:00","date_gmt":"2012-05-01T00:00:00","guid":{"rendered":"https:\/\/newed.any0.dpdns.org\/en-us\/research\/msr-research-item\/approaches-for-multi-core-propagation-in-clause-learning-satisfiability-solvers\/"},"modified":"2018-10-16T20:17:25","modified_gmt":"2018-10-17T03:17:25","slug":"approaches-for-multi-core-propagation-in-clause-learning-satisfiability-solvers","status":"publish","type":"msr-research-item","link":"https:\/\/newed.any0.dpdns.org\/en-us\/research\/publication\/approaches-for-multi-core-propagation-in-clause-learning-satisfiability-solvers\/","title":{"rendered":"Approaches for Multi-Core Propagation in Clause Learning Satisfiability Solvers"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Parallelization of unit propagation in SAT solvers is a compelling way of obtaining an efficient parallel decision procedure for the propositional satisfiability problem. However, due to the P-completeness of unit propagation, it is challenging to achieve good efficiency in practice. In this article, we present two methods for unit propagation on multi-core systems and their implementation. We throughly evaluate these techniques by comparison to a simulation that estimates a baseline efficiency and by experimental evaluation of an implementation on competition benchmarks. We thereby demonstrate that achieving a speed-up linear in the number of cores is indeed challenging in practice, but also that unit propagation on multi-core systems is feasible in practice.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Parallelization of unit propagation in SAT solvers is a compelling way of obtaining an efficient parallel decision procedure for the propositional satisfiability problem. However, due to the P-completeness of unit propagation, it is challenging to achieve good efficiency in practice. In this article, we present two methods for unit propagation on multi-core systems and their [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"MSR-TR-2012-47","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"","msr_doi":"","msr_arxiv_id":"","msr_s2_paper_id":"","msr_mag_id":"","msr_pubmed_id":"","msr_other_authors":"Antti E. J. 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