Compiler-directed array interleaving for reducing energy in multi-bank memories

V. Delaluz, M. Kandemir, N. Vijaykrishnan, M.J. Irwin, A. Sivasubramaniam, I. Kolcu
Proceedings of ASP-DAC/VLSI Design 2002. 7th Asia and South Pacific Design Automation Conference and 15h International Conference on VLSI Design  
With the increased use of embedded/portable devices such as smart cellular phones, pagers, PDAs, hand-held computers, and CD players, improving energy efficiency is becoming a critical issue. To develop a truly energy-efficient system, energy constraints should be taken into account early in the design process; i.e., at the source level in software compilation and behavioral level in hardware compilation. Source-level optimizations are particularly important in data-dominated media applications
more » ... that have become pervasive in energyconstrained mobile environments. This paper focuses on improving the effectiveness of energy savings from using multiple low-power operating modes provided in current memory modules. We propose a sourcelevel data space transformation technique called array interleaving that colocates simultaneously used array elements in a small set of memory modules. We validate the effectiveness of this transformation using a set of array-dominated benchmarks and observe significant savings in memory energy.
doi:10.1109/aspdac.2002.994936 dblp:conf/vlsid/DelaluzKVISK02 fatcat:rhliy7w5ojaz7lk2rixxlkweke