In circuit designing industry, the focus is on transistor density, clock speed and power/performance ratio optimization. Due to the emergence of Dark Silicon issue, the focus has shifted entirely on power/performance ratio. Performance and power tradeoff is still the most crucial issue in the design of circuits. Suppose you are working on the design of a processor for a Radar System. Which one of the parameters (Performance or Power) will you consider being the most important in this situation?
Justify your answer with good reasons.
The large energy cost of memory fetches limits the overallefficiency of applications no matter how efficient the ac-celerators are on the chip. As a result the most importantoptimization must be done at the algorithm level, to reduce off-chip memory accesses, to createDark Memory. The algorithmsmust first be (re)written for both locality and parallelism beforeyou tailor the hardware to accelerate them.Using Pareto curves in theenergy/opandmm2/(op/s)spaceallows one to quickly evaluate different accelerators, memorysystems, and even algorithms to understand the trade-offsbetween performance, power and die area. This analysis isa powerful way to optimize chips in the Dark Silicon era.
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