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2007 | OriginalPaper | Chapter
A Power and Energy Perspective on MultiProcessors
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In the past few years, we have seen the rise of multiprocessor and multicore approaches to system-on-chip and processor design, driven by performance, power dissipation, and energy consumption motivations. In fact, there is considerable confusion over the various architectural choices for multiprocessor systems, and the primary design methods that are appropriate to each choice. The techniques for processor design and power and energy reduction that have been discussed in previous chapters of this book are often orthogonal to the basic architectural choices in multiprocessor systems, so that these techniques can be combined together in designing multiprocessor or multicore SoCs. In this chapter, we will review the main approaches to multiprocessor architecture and their impact on power and energy.