Energy efficiency of software is an increasingly important topic. To achieve energy efficiency, a system should automatically optimize itself to provide the best possible utility to the user for the least possible cost in terms of energy consumption. To reach this goal, the system has to continuously decide whether and how to adapt itself, which takes time and consumes energy by itself. During ...

As feature sizes decrease to the submicrometer regime and clock rates increase to the multigigahertz range, the limited bandwidth at higher bit rates and longer communication distances in electrical interconnects will create a major bandwidth imbalance in future high-performance computing (HPC) systems. We explore the application of an optoelectronic interconnect for the design of flexible, hig...

The maturation and operation of neural networks are known to depend on modulatory neurons. However, whether similar mechanisms may control both adult and developmental plasticity remains poorly investigated. To examine this issue, we have used the lobster stomatogastric nervous system (STNS) to investigate the ontogeny and role of GABAergic modulatory neurons projecting to small pattern generat...

Partial dynamic reconfiguration, PDR, is an important feature of modern reconfigurable architectures such as the Xilinx Virtex FPGA devices. In this paper we focus on the application of PDR to fault-tolerant systolic arrays in one dimension. Single as well as multiple faults in one or more array processing elements, PEs, are considered. In our approach modular redundancy is not used and the goa...

Richard C. Brewster, Thompson Rivers University A Dichotomy Theorem for Circular Colouring Reconfiguration The “reconfiguration problem” for circular colourings asks, given two (p, q)colourings f and g of a graph G, is it possible to transform f into g by changing the colour of one vertex at a time such that every intermediate mapping is a (p, q)-colouring? We show that this problem can be solv...

The problem of reconfiguring power distribution system to reduce power losses has been extensively studied because of its significant economic impact. A variety of approximation computational models have recently been proposed. We describe a constraint programming model for this problem, using the MOzArt system. To handle real world reconfiguration systems we implemented and integrated into MOz...

This paper reports on the implementation of an Artificial Neural Network (ANN) on an Atmel AT6005 Field Programmable Gate Array (FPGA). The work was carried out as an experiment in mapping a bit-level, logically intensive application onto the specific logic resources of a fine-grained FPGA. By exploiting the reconfiguration capabilities of the Atmel FPGA, individual layers of the network are ti...

electrical resistivity survey is used to explore subsurface layers in hydrology, geology, mining, geotechnical and environmental investigations. the resistivity measurements are normally made by injecting current into the ground through two current electrodes, and measuring the resulting voltage difference at two potential electrodes. electrical resistivity is a function of injection current, m...

PV systems are a popular energy resource, prevalent worldwide; however, shade faults manifested in limit its power conversion efficiency. The occurrence of multiple peaks and their location highly uncertain systems; this necessitates the use complex maximum point tracking algorithms to introduce high voltage oscillations. To address issue, new reconfigurable array produce global (GMPP) algorith...