A Complete-Time Approach for Chaining and Execution Control in the AN/UYS-2 Parallel Signal Processor
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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The ANUYS-2 represents the U.S. Navys effort to meet the signal processing demands of the 21st at century. It is programmed using the Processing Graph Methodology PGM, where signal processing applications are represented as graphs and the nodes specify library primitives. Presently the ANUYS-2 incorporates a First-Come-First-Serve run-time technique to allocate system resources to support large-grain data-flow execution. While this technique results in low run-time overhead, the system throughput degrades rapidly under high system load. To provide uniform output even under high load, a compile-time technique, called Revolving Cylinder RC analysis, is developed further to identify optimal chains and restructure the graph. It is shown by simulation that such chaining and restructuring improve the overall system performance. Digital system processing, Compile-time analysis, Revolving cylinder, ANUYS-2, Data-flow processing, Processing graph methodology, Signal processing, Scheduling, Large-grain data-flow architecture.
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