The use of cluster computer systems for NASA/JPL applications

The application of cluster computer systems has escalated dramatically over the last several years. Driven by a range of applications that need relatively low-cost access to high performance computing systems, clusters computers have reached worldwide use. In this paper we outline the results of using three generations of cluster machines at JPL for a select set of applications drawn from a larger development effort. The applications include those for science data processing, for physicsbased modeling of engineering and scientific systems and for applications used in integrated design environments where clusters can greatly reduce turnaround time. Results show the effects of CPU performance, network bandwidth and latency and IO to storage devices for these applications. It is concluded that these applications running on cluster computers can be introduced into operational systems, as well as used in research and development settings.