On the Energy Efficiency and Performance of Irregular Application Executions on Multicore, NUMA and Manycore Platforms - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Journal of Parallel and Distributed Computing Year : 2015

On the Energy Efficiency and Performance of Irregular Application Executions on Multicore, NUMA and Manycore Platforms

Abstract

Until the last decade, performance of HPC architectures has been almost exclusively quantifiedby their processing power. However, energy efficiency is being recently considered as importantas raw performance and has become a critical aspect to the development of scalablesystems. These strict energy constraints guided the development of a new class of so-calledlight-weight manycore processors. This study evaluates the computing and energy performanceof two well-known irregular NP-hard problems — the Traveling-Salesman Problem (TSP) andK-Means clustering—and a numerical seismic wave propagation simulation kernel—Ondes3D—on multicore, NUMA, and manycore platforms. First, we concentrate on the nontrivial task ofadapting these applications to a manycore, specifically the novel MPPA-256 manycore processor.Then, we analyze their performance and energy consumption on those di↵erent machines.Our results show that applications able to fully use the resources of a manycore can have betterperformance and may consume from 3.8x to 13x less energy when compared to low-power andgeneral-purpose multicore processors, respectively
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Dates and versions

hal-01092325 , version 1 (08-12-2014)

Licence

Attribution - NonCommercial

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Emilio Francesquini, Márcio Castro, Pedro Henrique Penna, Fabrice Dupros, Henrique Cota De Freitas, et al.. On the Energy Efficiency and Performance of Irregular Application Executions on Multicore, NUMA and Manycore Platforms. Journal of Parallel and Distributed Computing, 2015, 76, pp. 32-48. ⟨10.1016/j.jpdc.2014.11.002⟩. ⟨hal-01092325⟩
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