ACM, 2012. This is the authors 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 Proceedings of the 24th Symposium on Parallelism in Algorithms and Architectures (SPAA 2012). ACM, New York, NY, USA, 172-181.
Joanne Talbot Hanley
Last modified: Mon Aug 6 15:52:32 EDT 2012