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Home > Archive>Volume 27, Issue 8, 2016 >2168-2184. DOI:10.13328/j.cnki.jos.005104
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Cross-Platform Data Layout Optimization Based on Relaxed Reuse Distance on Heterogeneous Architectures
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National Natural Science Foundation of China (61202055, 61402445); National High-Tech R&D Program of China (863) (2015AA011505)

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    Abstract:

    With the rapid development of heterogeneous system, it's important to enhance data locality and fully utilize on-chip cache via compiler. However, classic reuse distance criteria exhibites platform-sensitive attribute in heterogeneous systems, therefore a unified reused distance calculation framework is needed for compiler to describe and optimize data locality. This paper proposes relaxed reuse distance with a unified calculation method in OpenCL programs as criteria for data layout optimization. Relaxed reuse distance is calculated with heterogeneous execution models and statistical approximation. Experiments are conducted on Intel Xeon Phi, AMD Opteron CPU, and Tilera Tile-GX36, and results show that this optimization can achieve at least 1.23x speedup on average.

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刘颖,黄磊,吕方,崔慧敏,王蕾,冯晓兵.异构架构下基于放松重用距离的多平台数据布局优.软件学报,2016,27(8):2168-2184

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History
  • Received:August 10,2015
  • Revised:May 23,2016
  • Online: August 06,2016
Links:Institute of Software, CASChina Computer FederationCASNSFC
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