The Dreiding force field is a seven-term equation that describes the potential energy in a molecule as a function of the relative positions of bonded atoms and electrostatic interactions between atoms that do not share a bond. For large molecules such as DNA, with several thousand atoms, the nonbonded terms can require a significant amount of computation. In this paper we present a data-parallel algorithm that takes time on processors. We compare the execution time of our algorithm on a MasPar MP-1 with an efficient sequential program running on an SGI workstation.
John S. Conery, Warner L. Peticolas, Thomas Rush I