N-body simulations present some of the most interesting challenges in the area of massively
parallel computing, especially when the object is to improve the time to solution for a fixed-
size problem. The Blue Matter molecular simulation framework was developed specifically to
address these challenges, to explore programming models for massively parallel machine
architectures in a concrete context, and to support the scientific goals of the IBM Blue Gene®
Project. This paper reviews the key issues involved in achieving ultrastrong scaling of …

N-body simulations present some of the most interesting challenges in the area of massively
parallel computing, especially when the object is to improve the time to solution for a fixed-
size problem. The Blue Matter molecular simulation framework was developed specifically to
address these challenges, to explore programming models for massively parallel machine
architectures in a concrete context, and to support the scientific goals of the IBM Blue Genet
Project. This paper reviews the key issues involved in achieving ultrastrong scaling of …