| Authors | J. Langguth, A. Azad, M. Halappanavar and F. Manne |
| Title | On Parallel Push-Relabel Based Algorithms for Bipartite Maximum Matching |
| Afilliation | , Scientific Computing |
| Status | Published |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Journal | Parallel Computing |
| Volume | 40 |
| Issue | 7 |
| Number | 7 |
| Pagination | 289-308 |
| Date Published | July |
| Publisher | Elsevier |
| Abstract | We study multithreaded push-relabel based algorithms for computing maximum cardinality matching in bipartite graphs. Matching is a fundamental combinatorial problem with applications in a wide variety of problems in science and engineering. We are motivated by its use in the context of sparse linear solvers for computing the maximum transversal of a matrix. Other applications can be found in many fields such as bioinformatics (Azad et al., 2010) [4], scheduling (Timmer and Jess, 1995) [27], and chemical structure analysis (John, 1995) [14]. We implement and test our algorithms on several multi-socket multicore systems and compare their performance to state-of-the-art augmenting path-based serial and parallel algorithms using a test set comprised of a wide range of real-world instances. Building on several heuristics for enhancing performance, we demonstrate good scaling for the parallel push-relabel algorithm. We show that it is comparable to the best augmenting path-based algorithms for bipartite matching. To the best of our knowledge, this is the first extensive study of multithreaded push-relabel based algorithms. In addition to a direct impact on the applications using matching, the proposed algorithmic techniques can be extended to preflow-push based algorithms for computing maximum flow in graphs. |
| DOI | 10.1016/j.parco.2014.03.004 |
| Citation Key | JohaSimula.simula.2866 |