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New and improved models for SAT-based bi-decomposition

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Show simple item record Chen, Huan Marques-Silva, Joao 2012-12-20T14:20:33Z 2012-12-20T14:20:33Z 2012
dc.description peer-reviewed en_US
dc.description.abstract Boolean function bi-decomposition is pervasive in logic synthesis. Bi-decomposition entails the decomposition of a Boolean function into two other simpler functions connected by a simple two-input gate. Existing solutions are based either on Binary Decision Diagrams (BDDs) or Boolean Satisfiability (SAT). Furthermore, the partition of the input set of variables is either assumed, or an automatic derivation is required. Most recent work on bi-decomposition proposed the use of Minimally Unsatisfiable Subformulas (MUSes) or Quantified Boolean Formulas (QBF) for computing, respectively, variable partitions of either approximate or optimum quality. This paper develops new grouporiented MUS-based models for addressing both the performance and the quality of bi-decompositions. The paper shows that approximate MUS search can be guided by the quality of well-known metrics. In addition, the paper improves on recent high-performance approximate models and versatile exact models, to address the practical requirements of bi-decomposition in logic synthesis. Experimental results obtained on representative benchmarks demonstrate significant improvement in performance as well as in the quality of decompositions. en_US
dc.language.iso eng en_US
dc.publisher Association for Computing Machinery en_US
dc.relation.ispartofseries GLSVLSI '12 Proceedings of the great lakes symposium on VLSI;pp. 141-146
dc.rights "© ACM, 2012. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in GLSVLSI '12 Proceedings of the great lakes symposium on VLSI, pp. 141-146, en_US
dc.subject bi-decomposition en_US
dc.subject logic synthesis en_US
dc.subject satisfiability en_US
dc.title New and improved models for SAT-based bi-decomposition en_US
dc.type info:eu-repo/semantics/conferenceObject en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid BEACON 09/IN.1/I2618 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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