Diet SODA: a power-efficient processor for digital cameras

Power has become the most critical design constraint for embedded handheld devices. This paper proposes a power-efficient SIMD architecture, referred to as Diet SODA, for DSP applications. The key design idea is to apply near-threshold operation on a single instruction and multiple data (SIMD) architecture to significantly lower the power consumption. The major features of Diet SODA are very wide SIMD width, scatter/gather data prefetcher, and dual mode operation. A case study was performed on digital still camera (DSC) applications; the results show that Diet SODA achieves 130x better performance and 340x better energy efficiency than a DSP solution. Categories and Subject Descriptors

• Type: Journal
• Year: 2010
• Where: ISLPED
• Authors: Sangwon Seo, Ronald G. Dreslinski, Mark Woh, Chaitali Chakrabarti, Scott A. Mahlke, Trevor N. Mudge
• Keywords: Diet SODA, Hardware, ISLPED 2010, Power-efficient Simd Architecture, SIMD