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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)
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)
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)
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 microarchitecture design have created a complexity wall: By enhancing performance through ever more complex architectural features, systems have become increasingly hard(More)
The increase in availability of resequencing data is greatly accelerating SNP discovery and has facilitated the development of SNP genotyping assays. This, in turn, is increasing interest in annotation of individual SNPs. Currently, these data are only available through curation, or comparison to a reference genome. Many species lack a reference genome, but(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)
Barley was introduced to North America ∼400 yr ago but adaptation to modern production environments is more recent. Comparisons of allele frequencies among growth habits and spike (inflorescence) types in North America indicate that significant genetic differentiation has accumulated in a relatively short evolutionary time span. Allele frequency(More)
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