On the advantage of time-varying diversity of workload on Functionally Asymmetric multi-core

A. Aminot 1 Y. Lhuillier 1 A. Chateigner 1 H.-P. Charles 1
1 DACLE-LIST - Département d'Architectures, Conception et Logiciels Embarqués-LIST
Abstract : Functionally Asymmetric Multi-Processor (FAMP) design represents a tradeoff between the programmability of a symmetric multi-processor and the exploitation of the workload heterogeneity of multi-processor system-on-chip. The functional asymmetry's management is a crucial issue in finding the potential power efficiency of the FAMP design. In this work-in-progress we propose a FAMP power model and extract some guidelines that take advantage of the asymmetric design. By analysing the behaviour of a SIMD hardware extension on the PARSEC benchmark suite, we show that the workload exhibits interesting hardware extension utilisation properties. In order to fit FAMP architectures, classical compilation/execution models, which are very efficient for symmetric multi-core, must be re-engineered.
Keywords : Functional Asymmetry multi-core power efficiency SIMD
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Conference papers
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https://hal-cea.archives-ouvertes.fr/cea-01818890
Contributor : Léna Le Roy <>
Submitted on : Tuesday, June 19, 2018 - 4:21:54 PM
Last modification on : Wednesday, January 23, 2019 - 2:39:33 PM

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A. Aminot, Y. Lhuillier, A. Chateigner, H.-P. Charles. On the advantage of time-varying diversity of workload on Functionally Asymmetric multi-core. ADAPT '14 Proceedings of International Workshop on Adaptive Self-tuning Computing Systems, Jan 2014, Vienna, Austria. pp.11-13, ⟨10.1145/2553062.2553068⟩. ⟨cea-01818890⟩

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