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The increasing leakage power consumption and stringent thermal constraint necessitate more aggressive leakage control techniques. Power gating and body biasing are widely used for standby leakage control. Their large energy overhead for performing mode transition is the major obstacle for more aggressive leakage control. Temperature and process variation (TV/PV) further magnify the overhead problem,...
Power gating (PG) and body biasing (BB) are popular leakage control techniques at microarchitectural level. However, their large overhead prevents them from being applied for active leakage reduction. The overhead problem is further magnified by temperature and process variation, leading to the “corner case leakage control” problem. This paper presents an Adaptive Light-Weight Vth Hopping technique...
The continuous increase of leakage power consumption in deep sub-micro technologies necessitates more aggressive leakage control. Runtime leakage control (RTLC) is effective, since runtime circuits generally have significant amount of idleness. However, current RTLC techniques are only used when circuits have long idleness, rendering the techniques less profitable. The reason is due to the large energy...
Runtime leakage control techniques, such as power gating (PG) and body biasing (BB), have been applied in a coarse-grained manner traditionally. In order to enable more aggressive leakage reduction, researchers are seeking ways to control leakage with finer granularity. Our research proposes two novel methods, namely circuit clustering for temporal and spatial idleness exploitation, to systematically...
Ever since the invention of various leakage power reduction techniques, leakage and dynamic power reduction techniques are categorized into two separate sets. Most of them cannot be applied together during runtime. The gap between them is due to the large energy breakeven time (EBT) and wakeup time (WUT) of conventional leakage reduction techniques. This paper proposes a new leakage reduction technique...
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