Power Islands: A High-Level Technique for Counteracting Leakage in Deep Sub-Micron

Dal, Deniz; Nunez, A.; Mansouri, N.

doi:10.1109/isqed.2006.103

Cited by 9 publications

(2 citation statements)

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“…PIS is a novel HLS methodology that eliminates the Spurious Switching Activity (SSA) and the leakage in a great portion of the resulting circuit by partitioning it into islands [4], [3]. Each Island is a cluster of logic whose power can be controlled independent from the rest of the circuit, and can be completely powered down when all the logic it contains is idling.…”

Section: Power Islands Synthesis (Pis)mentioning

confidence: 99%

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A high-level register optimization technique for minimizing leakage and dynamic power

Dal

Mansouri

2007

Proceedings of the 17th ACM Great Lakes Symposium on VLSI

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A large fraction of the total power dissipated in a digital circuit is consumed by the clocked elements in the data-path. Hence, savings in power usage of these components can be directly reflected in a circuit's overall power consumption. Reducing power through techniques that optimize power consumption in combinational elements has been extensively discussed in the existing literature. However, these techniques cannot be applied for reducing the power in sequential elements. In this work, we focus on this problem, and introduce a novel cluster-based register optimization technique that is employed in High-Level Synthesis (HLS) with Power Islands. Our experiments conducted on several synthesis benchmarks implemented at the transistor level using a 65 nm process technology showed an average reduction of 18% in total power consumption due to our technique with no or little area overhead.

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Section: Power Islands Synthesis (Pis)mentioning

confidence: 99%

“…This is needed to avoid violating the setup and hold times of registers on the island. Also, in [4], it is shown that a gradual turn on of an island within one cycle (compared to an abrupt turn on) reduces the dynamic power overhead.…”

Section: Figure 3: Register Aps From Assignmentmentioning

confidence: 99%