Abstract
This paper presents a novel system-level approach that minimizes the energy consumption of embedded core-based systems through datapath width optimization. It is based on the idea of minimizing energy consumed by redundant bits, which are unused during execution of programs by means of optimizing the datapath width of processors. To minimize the redundant bits of variables in a given application program, the effective size of each variable is determined by variable size analysis, and Valen-C language is used to preserve the precision of computation. Analysis results of variables show that there are average 39% redundant bits in the C source program of MPEG-2 video decoder. In our experiments for several embedded applications, energy savings without performance penalty are reported range from about 10.8% to 48.3%.
| Original language | English |
|---|---|
| Pages | 231-236 |
| Number of pages | 6 |
| Publication status | Published - Jan 1 2001 |
| Event | International Symposium on Low Electronics and Design (ISLPED'01) - Huntington Beach, CA, United States Duration: Aug 6 2001 → Aug 7 2001 |
Other
| Other | International Symposium on Low Electronics and Design (ISLPED'01) |
|---|---|
| Country | United States |
| City | Huntington Beach, CA |
| Period | 8/6/01 → 8/7/01 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
A system-level energy minimization approach using datapath width optimization. / Cao, Y.; Yasuura, H.
2001. 231-236 Paper presented at International Symposium on Low Electronics and Design (ISLPED'01), Huntington Beach, CA, United States.Research output: Contribution to conference › Paper
}
TY - CONF
T1 - A system-level energy minimization approach using datapath width optimization
AU - Cao, Y.
AU - Yasuura, H.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - This paper presents a novel system-level approach that minimizes the energy consumption of embedded core-based systems through datapath width optimization. It is based on the idea of minimizing energy consumed by redundant bits, which are unused during execution of programs by means of optimizing the datapath width of processors. To minimize the redundant bits of variables in a given application program, the effective size of each variable is determined by variable size analysis, and Valen-C language is used to preserve the precision of computation. Analysis results of variables show that there are average 39% redundant bits in the C source program of MPEG-2 video decoder. In our experiments for several embedded applications, energy savings without performance penalty are reported range from about 10.8% to 48.3%.
AB - This paper presents a novel system-level approach that minimizes the energy consumption of embedded core-based systems through datapath width optimization. It is based on the idea of minimizing energy consumed by redundant bits, which are unused during execution of programs by means of optimizing the datapath width of processors. To minimize the redundant bits of variables in a given application program, the effective size of each variable is determined by variable size analysis, and Valen-C language is used to preserve the precision of computation. Analysis results of variables show that there are average 39% redundant bits in the C source program of MPEG-2 video decoder. In our experiments for several embedded applications, energy savings without performance penalty are reported range from about 10.8% to 48.3%.
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M3 - Paper
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