Finding Strongly Connected Components in Distributed Graphs

W. McLendon, B. Hendrickson, S. J. Plimpton, L. Rauchwerger, J Parallel and Distributed Computing, 65, 901-910 (2005).

The traditional, serial, algorithm for finding the strongly connected components in a graph is based on depth first search and has complexity which is linear in the size of the graph. Depth first search is difficult to parallelize, which creates a need for a different parallel algorithm for this problem. We describe the implementation of a recently proposed parallel algorithm that finds strongly connected components in distributed graphs, and discuss how it is used in a radiation transport solver.

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