Balanced partitioning

Hannah Honghua Yang, D.F. Wong

Research output: Contribution to journalJournal articlepeer-review

45 Citations (Scopus)

Abstract

We consider the problem of bipartitioning a circuit into two balanced components that minimizes the number of crossing nets. Previously, Kernighan and Lin type (K&L) heuristics, simulated annealing approach, and analytical methods were given to solve the problem. However, network flow (max-flow min-cut) techniques were overlooked as viable heuristics to min-cut balanced bipartition due to their high complexity. In this paper we propose a balanced bipartition heuristic based on repeated max-flow min-cut techniques, and give an efficient implementation that has the same asymptotic time complexity as that of one max-flow computation. We implemented our heuristic algorithm in a package called FBB. The experimental results demonstrate that FBB outperforms K&L heuristics and analytical methods in terms of the number of crossing nets, and our efficient implementation makes it possible to partition large circuit netlists with reasonable runtime. For example, the average elapsed time for bipartitioning a circuit S35932 of almost 20 K gates is less than 20 min on a SPARC10 with 32 MB memory.
Original languageEnglish
Article number552086
Pages (from-to)1533-1540
Number of pages8
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Volume15
Issue number12
DOIs
Publication statusPublished - Dec 1996

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