One more, CERN NQS. It is "freely available". I don't know the license or the Web site, but here's the FTP site: ftp://shift.cern.ch/pub/NQS/ Looking at Generic NQS (last e-mail), I think it may be the way to go. GNU Queue is for "homogeneous clusters of workstations". Jeff -- J.W. Bizzaro Phone: 617-552-3905 Boston College mailto:bizzaro at bc.edu Department of Chemistry http://www.uml.edu/Dept/Chem/Bizzaro/ --