High Performance Computing for Computational Science - VECPAR 2006 [electronic resource] : 7th International Conference, Rio de Janeiro, Brazil, June 10-13, 2006, Revised Selected and Invited Papers / edited by Michel Daydé, José M. L. M. Palma, Álvaro L. G. A. Coutinho, Esther Pacitti, João Correia Lopes.