Netters: Kim Baldridge at San Diego Supercomputer Center (kimb |-at-| sdsc.edu) has parallelized MOPAC for (I hope this is correct) the Cray and Intel iPSC systems. I don't have specific timing information in front of me, so you should contact her if you have more questions. Theresa Windus Department of Chemistry Iowa State University Ames, IA 50011 e-mail: theresa |-at-| si.fi.ameslab.gov