Terascale Optimal PDE Simulations (TOPS) Collaboration
	• Extend the sparse matrix solvers in PETSc in several ways that will improve the efficiency of M3D – Develop multilevel solvers for stiff PDE systems – Addition of nonlinear Schwarz domain decomposition – Refinements in implementation to improve cache utilization • David Keyes and Barry Smith primary contacts • Keyes visited Princeton on June 6 • M3D team visited Smith at Argonne in January • Jardin on TOPS “Advisory Council” • Jardin to attend briefing on CEMM at Aug 20 meeting in Argonne