Fast shared-memory streaming multilevel graph partitioning
Date
2020-09-12Source Title
Journal of Parallel and Distributed Computing
Print ISSN
0743-7315
Electronic ISSN
1096-0848
Publisher
Elsevier
Volume
147
Pages
140 - 151
Language
English
Type
ArticleItem Usage Stats
48
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2
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Abstract
A fast parallel graph partitioner can benefit many applications by reducing data transfers. The online methods for partitioning graphs have to be fast and they often rely on simple one-pass streaming algorithms, while the offline methods for partitioning graphs contain more involved algorithms and the most successful methods in this category belong to the multilevel approaches. In this work, we assess the feasibility of using streaming graph partitioning algorithms within the multilevel framework. Our end goal is to come up with a fast parallel offline multilevel partitioner that can produce competitive cutsize quality. We rely on a simple but fast and flexible streaming algorithm throughout the entire multilevel framework. This streaming algorithm serves multiple purposes in the partitioning process: a clustering algorithm in the coarsening, an effective algorithm for the initial partitioning, and a fast refinement algorithm in the uncoarsening. Its simple nature also lends itself easily for parallelization. The experiments on various graphs show that our approach is on the average up to 5.1x faster than the multi-threaded MeTiS, which comes at the expense of only 2x worse cutsize.
Keywords
Streaming algorithmsGraph partitioning
Multilevel graph partitioning
Parallel graph partitioning