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Energy is a valuable resource in embedded systems as the lifetime of many such systems is constrained by their battery capacity. Recent advances in processor design have added support for dynamic frequency/voltage scaling (DVS) for saving energy. Recent work on real-time scheduling focuses on saving energy in static as well as dynamic scheduling(More)
The species cytoplasm specific (scs) genes affect nuclear-cytoplasmic interactions in interspecific hybrids. A radiation hybrid (RH) mapping population of 188 individuals was employed to refine the location of the scs ae locus on Triticum aestivum chromosome 1D. “Wheat Zapper,” a comparative genomics tool, was used to predict synteny between wheat(More)
Meeting deadlines is a key requirement in safe realtime systems. Worst-case execution times (WCET) of tasks are needed for safe planning. Contemporary worst-case timing analysis tools can safely and tightly bound execution time on in-order single-issue pipelines with caches and static branch prediction. However, this simple pipeline appears to be a(More)
Determining safe and tight upper bounds on the worst-case execution time (WCET) of hard real-time tasks running on contemporary microarchitectures is a difficult problem. Current trends in mi-croarchitecture design have created a complexity wall: By enhancing performance through ever more complex architectural features, systems have become increasingly hard(More)
Worst-case execution times (WCET) of tasks are essential for safe scheduling in hard real-time systems. However, contemporary processors exceed the capabilities of static worst-case timing analysis tools. The Virtual Simple Architecture (VISA) framework shifts the burden of bounding the WCET of tasks, in part, to hardware. A VISA is the pipeline timing(More)