J. Kepner, D. A. Bader, A. B. c, J. R. Gilbert, T. G. Mattson, and H. Meyerhenke. {G}raphs, {M}atrices, and the {G}raph{B}LA{S}: {S}even {G}ood {R}easons. Proceedings of the International Conference on Computational Science, ICCS 2015, Computational Science at the Gates of Nature, Reykjavik, Iceland, 1-3 June, 2015, 2014, 2015.