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Performance and Energy Efficiency Analysis of Data Reuse Transformation Methodology on Multicore Processor

Conference paper
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Part of the Lecture Notes in Computer Science book series (LNCS, volume 7640)

Abstract

Memory latency and energy efficiency are two key constraints to high performance computing systems. Data reuse transformations aim at reducing memory latency by exploiting temporal locality in data accesses. Simultaneously, modern multicore processors provide the opportunity of improving performance with reduced energy dissipation through parallelization. In this paper, we investigate to what extent data reuse transformations in combination with a parallel programming model in a multicore processor can meet the challenges of memory latency and energy efficiency constraints. As a test case, a “full-search motion estimation” kernel is run on the Intel® CoreTM i7-2600 processor. Energy Delay Product (EDP) is used as a metric to compare energy efficiencies. Achieved results show that performance and energy efficiency can be improved by a factor of more than 6 and 15, respectively, by exploiting a data reuse transformation methodology and parallel programming model in a multicore system.

Keywords

Performance energy efficiency data reuse transformation methodology parallel programming 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Computer and Information ScienceNorwegian University of Science and TechnologyTrondheimNorway
  2. 2.Department of Electronics and TelecommunicationsNorwegian University of Science and TechnologyTrondheimNorway

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