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DReAM: An approach to estimate per-Task DRAM energy in multicore systems

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10.1145/2939370
 
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hdl:2117/98303

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Liu, Qixiao
Moreto Planas, MiquelMés informacióMés informacióMés informació
Abella Ferrer, JaumeMés informació
Cazorla Almeida, Francisco Javier
Valero Cortés, MateoMés informacióMés informacióMés informació
Document typeArticle
Defense date2016-12
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
ProjectCOMPUTACION DE ALTAS PRESTACIONES VII (MINECO-TIN2015-65316-P)
RYC-2013-14717 (MINECO-RYC-2013-14717)
ROMOL - Riding on Moore's Law (EC-FP7-321253)
COMPUTACION DE ALTAS PRESTACIONES VII (MINECO-TIN2015-65316-P)
ROMOL - Riding on Moore's Law (EC-FP7-321253)
RYC-2013-14717 (MINECO-RYC-2013-14717)
Abstract
Accurate per-task energy estimation in multicore systems would allow performing per-task energy-aware task scheduling and energy-aware billing in data centers, among other applications. Per-task energy estimation is challenged by the interaction between tasks in shared resources, which impacts tasks’ energy consumption in uncontrolled ways. Some accurate mechanisms have been devised recently to estimate per-task energy consumed on-chip in multicores, but there is a lack of such mechanisms for DRAM memories. This article makes the case for accurate per-task DRAM energy metering in multicores, which opens new paths to energy/performance optimizations. In particular, the contributions of this article are (i) an ideal per-task energy metering model for DRAM memories; (ii) DReAM, an accurate yet low cost implementation of the ideal model (less than 5% accuracy error when 16 tasks share memory); and (iii) a comparison with standard methods (even distribution and access-count based) proving that DReAM is much more accurate than these other methods.
CitationLiu, Q., Moreto, M., Abella, J., Cazorla, F., Valero, M. DReAM: An approach to estimate per-Task DRAM energy in multicore systems. "ACM transactions on design automation of electronic systems", Desembre 2016, vol. 22, núm. 1, p. 16:1-16:26. 
URIhttp://hdl.handle.net/2117/98303
DOI10.1145/2939370
ISSN1084-4309
Publisher versionhttp://dl.acm.org/citation.cfm?id=2939370
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  • Computer Sciences - Articles de revista [277]
  • Departament d'Arquitectura de Computadors - Articles de revista [967]
  • CAP - Grup de Computació d'Altes Prestacions - Articles de revista [380]
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