GENERAL ATOMIC AND MOLECULAR ELECTRONIC-STRUCTURE SYSTEM

A description of the ab initio quantum chemistry package GAMESS is pre sented. Chemical systems containing atoms through radon can be treated with wave functions ranging from the simplest closed-shell case up to a general MCSCF case, permitting calculations at the necessary level of sophistication. Emphasis is given to novel features of the program. The parallelization strategy used in the RHF, ROHF, UHF, and GVB sect ions of the program is described, and detailed speedup results are giv en. Parallel calculations can be run on ordinary workstations as well as dedicated parallel machines. (C) 1993 by John Wiley & Sons, Inc.