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Memorias de investigación
Artículos en revistas:
Joint hardware¿software leakage minimization approach for the register file of VLIW embedded architectures
Año:2008
Áreas de investigación
  • Industria electrónica
Datos
Descripción
New applications demand very high processing power when run on embedded systems. Very Long Instruction Word (VLIW) architectures have emerged as a promising alternative to provide such processing capabilities under the given energy budget. However, in this new VLIW-based architectures, the register file is a very critical contributor to the overall power consumption and new approaches have to be proposed to reduce its power while preserving system performance. In this paper, we propose a novel joint hardware–software approach that reduces the leakage energy in the register files of these embedded VLIW architectures. This approach relies upon an energy-aware register assignment method and a hardware support that creates sub-banks in the global register file that can be switched on/off at run time. Our results indicate energy savings in the register file, after considering the overhead of the added extra hardware, up to 50% for modern multimedia embedded applications without performance degradation. We illustrate this approach using real-life applications running on these processors. We also illustrate the tradeoff between the area overhead vs. the gains in the leakage energy for the different strategies.
Internacional
Si
JCR del ISI
Si
Título de la revista
INTEGRATION-THE VLSI JOURNAL
ISSN
0167-9260
Factor de impacto JCR
0,268
Información de impacto
Volumen
DOI
Número de revista
0
Desde la página
38
Hasta la página
48
Mes
ENERO
Ranking
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Participantes
  • Autor: David Atienza (LSI/EPFL, Station 14, 1015 Lausanne, Switzerland)
  • Autor: Praveen Raghavan (IMEC vzw, Kapeldreef 75, 3001 Heverlee, and KULeuven Belgium)
  • Autor: José L. Ayala Rodrigo (UCM)
  • Autor: M. Luisa Lopez Vallejo (UPM)
  • Autor: Diederik Verkest (IMEC vzw, Kapeldreef 75, 3001 Heverlee, and KULeuven Belgium)
  • Autor: Francky Catthoor (IMEC vzw, Kapeldreef 75, 3001 Heverlee, and KULeuven Belgium)
  • Autor: Giovanni De Micheli (LSI/EPFL, Station 14, 1015 Lausanne, Switzerland)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Laboratorio de Sistemas Integrados (LSI)
  • Departamento: Ingeniería Electrónica
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