Our co-authored paper on multicore optimizations for sparse matrix-vector multiply was the “hottest” (most downloaded) Journal of Parallel Computing (ParCo) article in Q1 2009.
[ParCo Top 25 List, Q1 2009] S. Williams, L. Oliker, R. Vuduc, J. Shalf, K. Yelick, J. Demmel. “Optimization of sparse matrix-vector multiplication on emerging multicore platforms.” J. Par. Comput. (ParCo), 35(3), pp. 178—194, March 2009. doi:10.1016/j.parco.2008.12.006