Horst Simon is an internationally recognized expert in the development of parallel computational methods for the solution of scientific problems of scale. His research interests are in the development of sparse matrix algorithms, algorithms for large-scale eigenvalue problems, and domain decomposition algorithms. His recursive spectral bisection algorithm is a breakthrough in parallel algorithms. Honored twice with the prestigious Gordon Bell Prize, most recently in 2009 for the development of innovative techniques that produce new levels of performance on a real application (in collaboration with IBM researchers) and in 1988 in recognition of superior effort in parallel processing research (with others from Cray and Boeing).
Horst Simon is Deputy Laboratory Director and Chief Research Officer (CRO) of Berkeley Lab. Simon has been with Berkeley Lab since 1996, having served previously as Associate Laboratory Director for Computing Sciences, and Director of NERSC.