The e ectiveness of large scale computing depends to a great extent on the performance of the memory system. As shared memorymultiprocessors grow in size, their memory hierarchy deepens, resulting in a design with non-uniform latencies. In this paper, we explore the implications of multi-valued memory latencies. In particular, we study the e ect of a nonuniform tra c distribution on a hierarchi...

Linux is not well suited for real-time environment. Redesigning it for real-time systems, however, is a very complex and challenging task. In this paper, we suggest an approach to convert a large system like Linux into a real-time system with minimal changes. We observe that most of real-time systems demand real-time performance only for a couple of devices they are targeting for. Our approach ...

This paper presents a fast and eeective linear intraprocedu-ral register allocation strategy that optimizes register usage across procedure calls. It capitalizes on our observation that while procedures that do not contain calls (syntactic leaf routines) account for under one third of all procedure activations , procedures that actually make no calls (eeective leaf routines) account for over tw...

OBJECTIVE To examine the effects of aging and age-related hearing loss on the perception and neural representation of a time-varying speech cue. METHODS P1, N1 and P2 cortical responses were recorded from younger and older normal-hearing adults, as well as older adults with age-related hearing loss. Synthetic speech tokens representing 10 ms increments along a /ba/-/pa/ voice-onset-time (VOT)...

The increasing number of threads inside the cores of a multicore processor, and competitive access to the shared cache memory, become the main reasons for an increased number of competitive cache misses and performance decline. Inevitably, the development of modern processor architectures leads to an increased number of cache misses. In this paper, we make an attempt to implement a technique fo...

Advantages are shown by using the DSP for the real time online control of hydraulic axis. The interrupt latency time is the most important factor for equidistant position samples to control the velocity as accurately as possible. The trajectory calculations for the velocity and position are presented as well as their derivation for Scurvatures. The control of the velocity, as a function of the ...

Servando López-Aguayo, Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner ICFO-Institut de Ciencies Fotoniques, and Universitat Politecnica de Catalunya, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain Photonics and Mathematical Optics Group, Tecnólogico de Monterrey, Monterrey México 64849 Departamento de Fisica y Matematicas, Universidad de las Americas – Puebla...

This paper presents a fast and eeective linear intraprocedu-ral register allocation strategy that optimizes register usage across procedure calls. It capitalizes on our observation that while procedures that do not contain calls (syntactic leaf routines) account for under one third of all procedure activations , procedures that actually make no calls (eeective leaf routines) account for over tw...