Document Type


Publication Date


Publication Title

NASA Technical Memorandum: 109025




Using workstation clusters for distributed computing has become popular with the proliferation of inexpensive, powerful workstations. Workstation clusters offer both a cost effective alternative to batch processing and an easy entry into parallel computing. However, a number of workstations on a network does not constitute a cluster. Cluster management software is necessary to harness the collective computing power. A variety of cluster management and queuing systems are compared: Distributed Queueing Systems (DQS), Condor, Load Leveler, Load Balancer, Load Sharing Facility (LSF - formerly Utopia), Distributed Job Manager (DJM), Computing in Distributed Networked Environments (CODINE), and NQS/Exec. The systems differ in their design philosophy and implementation. Based on published reports on the different systems and conversations with the system's developers and vendors, a comparison of the systems are made on the integral issues of clustered computing.

Original Publication Citation

Kaplan, J. A., & Nelson, M. L. (1993). A comparison of queueing, cluster and distributed computing systems. NASA Technical Memorandum: 109025. Hampton, VA: NASA Langley Research Center


0000-0003-3749-8116 (Nelson)