]> BibSonomy publications for /author/Hsiao/Estimation http://www.bibsonomy.org/burst/author/Hsiao/Estimation BibSonomy BuRST Feed for /author/Hsiao/Estimation 2008-12-04T22:56:53+01:00 Quality-Driven Proactive Computation Elimination for Power-Aware Multimedia Processing http://www.bibsonomy.org/bibtex/2dc224dd0b3180d85ae12d1608649e2b7/derkling derkling 2007-04-12T13:07:25+02:00 DATE Energy Estimation Optimization and
Quality-Driven Proactive Computation Elimination for Power-Aware Multimedia Processing
S. Yardi and M. Hsiao and T. Martin and D. Ha Design Automation Conference (2005)
to DATE Energy Estimation Optimization and by derkling on 2007-04-12 13:07:25 ]]> Design Automation ConferenceQuality-Driven Proactive Computation Elimination for Power-Aware Multimedia Processing2005DATE Energy Estimation Optimization and 2007-04-12 13:07:25.0We present a novel, quality-driven, architectural-level approach that trades-off the output quality to enable power-aware processing of multimedia streams. The error tolerance of multimedia data is exploited to selectively eliminate computation while maintaining a specified output quality. We construct relaxed, synthesized power macro-models for power-hungry units to predict the cycle-accurate power consumption of the input stream on the fly. The macro-models, together with an effective quality model, are integrated into a programmable architecture that allows both power savings and quality to be dynamically tuned with the available battery-life. In a case study, power monitors are integrated with functional units of the IDCT module of a MPEG-2 decoder. Experiments indicate that, for a moderate power monitor energy overhead of 5%, power savings of 72% in the functional units can be achieved resulting in an increase in battery life by 1.95x.