Distributed Strategies for Computational Sprints.

Computational sprinting is a class of mechanisms that boost performance but dissipate additional power. We describe a sprinting architecture in which many, independent chip multiprocessors share a power supply and sprints are constrained by the chips’ thermal limits and the rack’s power limits. More...

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Detalles Bibliográficos
Publicado en:Communications of the ACM Vol. 62; no. 2; pp. 98 - 107
Autores principales: Songchun Fan, Zahedi, Seyed Majid, Lee, Benjamin C.
Formato: Artículo
Publicado: Association for Computing Machinery Feb2019
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Acceso en línea:Ver este registro en EBSCOhost
Descripción
Sumario:Computational sprinting is a class of mechanisms that boost performance but dissipate additional power. We describe a sprinting architecture in which many, independent chip multiprocessors share a power supply and sprints are constrained by the chips’ thermal limits and the rack’s power limits. Moreover, we present the computational sprinting game, a multi-agent perspective on managing sprints. Strategic agents decide whether to sprint based on application phases and system conditions. The game produces an equilibrium that improves task throughput for data analytics workloads by 4–6× over prior greedy heuristics and performs within 90% of an upper bound on throughput from a globally optimized policy.