| Revista: | Journal of applied research and technology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000380487 |
| ISSN: | 1665-6423 |
| Autores: | Da-Ren, Chen1 Young-Long, Chen2 You-Shyang, Chen3 |
| Instituciones: | 1National Taichung University of Science and Technology, Department of Information Management, Taichung. Taiwán 2National Taichung University of Science and Technology, Department of Computer Science and Information Engineering, Taichung. Taiwán 3Hwa Hsia University of Technology, Department of Information Management, New Taipei City. Taiwán |
| Año: | 2014 |
| Periodo: | Dic |
| Volumen: | 12 |
| Número: | 6 |
| Paginación: | 1025-1039 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Dynamic voltage/frequency scaling (DVFS) is one of the most effective techniques for reducing energy use. In this paper, we focus on the pinwheel task model to develop a variable voltage processor with d discrete voltage/speed levels. Depending on the granularity of execution unit to which voltage scaling is applied, DVFS scheduling can be defined in two categories: (i) inter-task DVFS and (ii) intra-task DVFS. In the periodic pinwheel task model, we modified the definitions of both intra- and inter-task and design their DVFS scheduling to reduce the power consumption of DVFS processors. Many previous approaches have solved DVFS problems by generating a canonical schedule in advance and thus require pseudo polynomial time and space because the length of a canonical schedule depends on the hyperperiod of the task periods and is generally of exponential length. To limit the length of the canonical schedules and predict their task execution, tasks with arbitrary periods are first transformed into harmonic periods and their key features are profiled. The proposed methods have polynomial time and space complexities, and experimental results show that, under identical assumptions, the proposed methods achieve more energy savings than the previous methods |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de control, Ingeniería eléctrica, Escalamiento dinámico de voltaje, Consumo de energía, Ahorro de energía, Procesador de voltaje |
| Keyword: | Engineering, Control engineering, Electrical engineering, Dynamic voltage scaling, Energy consumption, Energy saving, Voltage processor |
| Texto completo: | Texto completo (Ver HTML) |
