Low power (mW) and high performance (GOPS) are strong requirements for compute-intensive signal processing in E-health, Internet-of-Things, and wearable applications. This work presents a building block for programmable Ultra-Low Power accelerators, namely a tightly-coupled computing cluster that supports parallel and sequential execution at high energy efficiency over a wide range of workload requirements. The cluster, implemented in 28nm UTBB FD-SOI technology, achieves peak energy efficiency in the near-threshold (NVT) operating region: 193 MOPS/mW at 162 MOPS for parallel workloads, and 90 MOPS/mW at 68 MOPS for sequential workloads at 0.46V and 0.5V, respectively. The energy efficient operating range is wide (0.32V to 1.15V), also meeting the design goal of 1 GOPS within a 10 mW power envelope (at 0.66V).

193 MOPS/mW @ 162 MOPS, 0.32V to 1.15V voltage range multi-core accelerator for energy efficient parallel and sequential digital processing

ROSSI, DAVIDE;LOI, IGOR;BENINI, LUCA
2016

Abstract

Low power (mW) and high performance (GOPS) are strong requirements for compute-intensive signal processing in E-health, Internet-of-Things, and wearable applications. This work presents a building block for programmable Ultra-Low Power accelerators, namely a tightly-coupled computing cluster that supports parallel and sequential execution at high energy efficiency over a wide range of workload requirements. The cluster, implemented in 28nm UTBB FD-SOI technology, achieves peak energy efficiency in the near-threshold (NVT) operating region: 193 MOPS/mW at 162 MOPS for parallel workloads, and 90 MOPS/mW at 68 MOPS for sequential workloads at 0.46V and 0.5V, respectively. The energy efficient operating range is wide (0.32V to 1.15V), also meeting the design goal of 1 GOPS within a 10 mW power envelope (at 0.66V).
19th IEEE Symposium on Low-Power and High-Speed Chips, IEEE COOL Chips 2016 - Proceedings
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Rossi, Davide; Pullini, Antonio; Loi, Igor; Gautschi, Michael; Gurkaynak, Frank Kagan; Teman, Adam; Constantin, Jeremy; Burg, Andreas; Miro-Panades, Ivan; Beign, Edith; Clermidy, Fabien; Abouzeid, Fady; Flatresse, Philippe; Benini, Luca
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/572158
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