Abstract
We describe how to create a Java-based screensaver for a Macintosh. A screensaver is a program that automatically runs when the computer enters a quiescent state. Screensaver frameworks enable CPU scavenging. CPU scavenging enables the use of otherwise wasted CPU cycles. Screensavers are a minimally-invasive technology for volunteering CPU services. Computers typically have 23% utilization (40 out of 168 hours, per week) or less. Screensaver-based cycle scavenging improves utilization dramatically. This paper is part 3 of a 5 part series on Java-based screensavers. Parts 1 and 2 addressed the creation of screensavers on Ms Windows and XWindows platforms. These screensavers are a part of the Initium Remote Job Submission system (Initium RJS). Initium RJS is a joint project between DocJava, Inc. and Fairfield University. The goal of the Initium RJS system is to make grid-based computing, in Java, a little easier.
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