Performance Issues: Granularity, Topology, Mapping Strategies
Parallelism produces a useful benefit when it successfully yields higher performance. When it cannot be used effectively, it adds to the system cost and complexity. This Chapter analyses the performance benefits of the task allocation strategies, described in Chapter 4, running on a number of multiple processor structures. A variety of metrics will be used for measuring the performance of these strategies. A partitioned version of the digital flight control law (VAP Control Law) has been mapped onto a number of parallel processing transputer-based systems, as an example which provides insight into the potential performance improvements and bottlenecks of such systems.
KeywordsExecution Time Performance Issue Mapping Strategy Communication Overhead Task Allocation
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