Name
Title | ||
|---|---|---|
Joint hardware-software leakage minimization approach for the register file of VLIW embedded architectures |
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. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1016/j.vlsi.2007.04.004 | Integration |
Keywords | Field | DocType |
compiler optimization,energy budget,embedded vliw architecture,energy saving,vliw,low-power design,energy-aware register assignment method,high processing power,register file,vliw embedded architecture,leakage energy,leakage reduction,joint hardware-software leakage minimization,embedded application,global register file,embedded system,system performance,very long instruction word,process capability | Leakage (electronics),Computer science,Very long instruction word,Register file,Real-time computing,Optimizing compiler,Software,Minification,Integrated circuit,Low-power electronics,Embedded system | Journal |
Volume | Issue | ISSN |
41 | 1 | Integration, the VLSI Journal |
Citations | PageRank | References |
4 | 0.46 | 35 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| David Atienza | 1 | 2219 | 149.60 |
| Praveen Raghavan | 2 | 308 | 47.48 |
| José L. Ayala | 3 | 180 | 20.44 |
| Giovanni De Micheli | 4 | 10245 | 1018.13 |
| Francky Catthoor | 5 | 3932 | 423.30 |
| Diederik Verkest | 6 | 1544 | 123.76 |
| Marisa López-Vallejo | 7 | 145 | 20.48 |