I/O performance is an increasingly important factor in the productivity of large-scale HPC systems such as Hopper, a 153,216 core Cray XE6 system operated by the National Energy Research Scientific Computing Center. The scientific workload diversity of such systems presents a challenge for I/O performance tuning, however. Applications vary in terms of data volume, I/O strategy, and access metho...

Purpose – To examine whether the framework of management accounting transformations in Hopper et al. (2009) applies to accounting changes in the Ashanti Gold Corporation (AGC) in Ghana over 120 years from pre-colonialism to recent times. Design/methodology/approach – Mixed data sources are used, namely interviews, observations of practices, historical documentation, company reports, and researc...

Resource allocation and straggler mitigation (via “speculative” copies) are two key building blocks for analytics frameworks. Today, the two solutions are largely decoupled from each other, losing the opportunities of joint optimization. Resource allocation across jobs assumes that each job runs a fixed set of tasks, ignoring their need to dynamically run speculative copies for stragglers. Cons...

Purpose – To examine whether the framework of management accounting transformations in Hopper et al. (2009) applies to accounting changes in the Ashanti Gold Corporation (AGC) in Ghana over 120 years from pre-colonialism to recent times. Design/methodology/approach – Mixed data sources are used, namely interviews, observations of practices, historical documentation, company reports, and researc...

This research examined three explanations for the "superstitious" behavior of pigeons under frequent fixed-time delivery of food: accidental response-reward contingency, stimulus substitution, and elicited species-typical appetitive behavior. The behavior observed in these studies consisted of occasional postfood locomotion away from the food hopper, and a predominant pattern of activity direct...

In Brand Objects for Nominal Typing, we describe an implementation of a branding system for both runtime and static types. This artifact provides the extended form of Hopper, an interpreter for the Grace programming language, and extra modules which define both the dynamic objects and the modular static type checker. The extra modules extend the existing structural type checker in the provided ...

We present a novel adaptive oscillator, called Adaptive Natural Oscillator (ANO), to exploit the natural dynamics of a given robotic system. This tool is built upon the Adaptive Frequency Oscillator (AFO), and it can be used as a pattern generator in robotic applications such as locomotion systems. In contrast to AFO, that adapts to the frequency of an external signal, ANO adapts the frequency ...

This Article is brought to you for free and open access by the Physics at ODU Digital Commons. It has been accepted for inclusion in Physics Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Hopper, C. S. and Delayen, J. R., "Superconducting Spoke Cavities For High-Velocity Applications" (...

hat is the judicial process? Kantorowicz (Rechtswissenschaft and Soziologie, p.5) tells us that according to popular conception in Germany, it consists, or ought to consist, in dropping an appropriate section of a statute into a hopper, turning the crank and pulling out the correct decision at the bottom. Doubtless the current American belief is very similar, except that we are likely to credit...