Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Joint hardware¿software leakage minimization approach for the register file of VLIW embedded architectures
Year:2008
Research Areas
  • Electronics engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
INTEGRATION-THE VLSI JOURNAL
ISBN
0167-9260
Impact factor JCR
0,268
Impact info
Volume
Journal number
0
From page
38
To page
48
Month
ENERO
Ranking
Participants
  • 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)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Laboratorio de Sistemas Integrados (LSI)
  • Departamento: Ingeniería Electrónica
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)