Scalable Hierarchical Algorithms for eXtreme Computing Workshop David Keyes, Professor, Applied Mathematics and Computational Science Apr 28, 08:00 - Apr 30, 16:00 KAUST scientific computing The 2012 SHAX-C workshop focuses international expert attention on the prospects for the three great hierarchical algorithms of scientific computing: multigrid, fast transforms, and fast multipole methods. These methods are kernels in simulations based on formulations of partial differential equations, integral equations, and interacting particles – in short, they are scientific and engineering workhorses.