Voltage Overscaling Algorithms for Energy-Efficient Workflow Computations With Timing Errors - Inria - Institut national de recherche en sciences et technologies du numérique
Rapport (Rapport De Recherche) Année : 2015

Voltage Overscaling Algorithms for Energy-Efficient Workflow Computations With Timing Errors

Résumé

We propose a software-based approach using dynamic voltage overscaling to reduce the energy consumption of HPC applications. This technique aggressively lowers the supply voltage below nominal voltage, which introduces timing errors, and we use ABFT to provide fault tolerance for matrix operations. We introduce a formal model for and design optimal polynomial-time solutions to execute a linear chain of tasks. Simulation results obtained for matrix multiplication demonstrate that our approach indeed leads to significant energy savings, compared to the standard algorithm that always operates at nominal voltage.
Fichier principal
Vignette du fichier
RR-8682.pdf (758.5 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01121065 , version 1 (27-02-2015)

Identifiants

  • HAL Id : hal-01121065 , version 1

Citer

Aurélien Cavelan, Yves Robert, Hongyang Sun, Frédéric Vivien. Voltage Overscaling Algorithms for Energy-Efficient Workflow Computations With Timing Errors. [Research Report] RR-8682, INRIA. 2015. ⟨hal-01121065⟩
223 Consultations
386 Téléchargements

Partager

More