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Proceedings Paper

Toward energy-aware balancing of mobile graphics
Author(s): Efstathios Stavrakis; Marios Polychronis; Nectarios Pelekanos; Alessandro Artusi; Panayiotis Hadjichristodoulou; Yiorgos Chrysanthou
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Paper Abstract

In the area of computer graphics the design of hardware and software has primarily been driven by the need to achieve maximum performance. Energy efficiency was usually neglected, assuming that a stable always-on power source was available. However, the advent of the mobile era has brought into question these ideas and designs in computer graphics since mobile devices are both limited by their computational capabilities and their energy sources. Aligned to this emerging need in computer graphics for energy efficiency analysis we have setup a software framework to obtain power measurements from 3D scenes using off-the-shelf hardware that allows for sampling the energy consumption over the power rails of the CPU and GPU. Our experiments include geometric complexity, texture resolution and common CPU and GPU workloads. The goal of this work is to combine the knowledge obtained from these measurements into a prototype energy-aware balancer of processing resources. The balancer dynamically selects the rendering parameters and uses a simple framerate-based dynamic frequency scaling strategy. Our experimental results demonstrate that our power saving framework can achieve savings of approximately 40%.

Paper Details

Date Published: 11 March 2015
PDF: 10 pages
Proc. SPIE 9411, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2015, 94110D (11 March 2015); doi: 10.1117/12.2079602
Show Author Affiliations
Efstathios Stavrakis, The Cyprus Institute (Cyprus)
Marios Polychronis, Univ. of Cyprus (Cyprus)
Nectarios Pelekanos, A.R.M.E.S. Ltd. (Cyprus)
Alessandro Artusi, The Cyprus Institute (Cyprus)
Univ. de Girona (Spain)
Panayiotis Hadjichristodoulou, A.R.M.E.S. Ltd. (Cyprus)
Yiorgos Chrysanthou, Univ. of Cyprus (Cyprus)

Published in SPIE Proceedings Vol. 9411:
Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2015
Reiner Creutzburg; David Akopian, Editor(s)

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