Parallelizing compiler framework and API for power reduction and software productivity of real-time heterogeneous multicores

Akihiro Hayashi, Yasutaka Wada, Takeshi Watanabe, Takeshi Sekiguchi, Masayoshi Mase, Jun Shirako, Keiji Kimura, Hironori Kasahara

研究成果: Conference contribution

9 引用 (Scopus)

抜粋

Heterogeneous multicores have been attracting much attention to attain high performance keeping power consumption low in wide spread of areas. However, heterogeneous multicores force programmers very difficult programming. The long application program development period lowers product competitiveness. In order to overcome such a situation, this paper proposes a compilation framework which bridges a gap between programmers and heterogeneous multicores. In particular, this paper describes the compilation framework based on OSCAR compiler. It realizes coarse grain task parallel processing, data transfer using a DMA controller, power reduction control from user programs with DVFS and clock gating on various heterogeneous multicores from different vendors. This paper also evaluates processing performance and the power reduction by the proposed framework on a newly developed 15 core heterogeneous multicore chip named RP-X integrating 8 general purpose processor cores and 3 types of accelerator cores which was developed by Renesas Electronics, Hitachi, Tokyo Institute of Technology and Waseda University. The framework attains speedups up to 32x for an optical flow program with eight general purpose processor cores and four DRP(Dynamically Reconfigurable Processor) accelerator cores against sequential execution by a single processor core and 80% of power reduction for the real-time AAC encoding.

元の言語English
ホスト出版物のタイトルLanguages and Compilers for Parallel Computing - 23rd International Workshop, LCPC 2010, Revised Selected Papers
ページ184-198
ページ数15
DOI
出版物ステータスPublished - 2011 3 18
イベント23rd International Workshop on Languages and Compilers for Parallel Computing, LCPC 2010 - Houston, TX, United States
継続期間: 2010 10 72010 10 9

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
6548 LNCS
ISSN(印刷物)0302-9743
ISSN(電子版)1611-3349

Conference

Conference23rd International Workshop on Languages and Compilers for Parallel Computing, LCPC 2010
United States
Houston, TX
期間10/10/710/10/9

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • これを引用

    Hayashi, A., Wada, Y., Watanabe, T., Sekiguchi, T., Mase, M., Shirako, J., Kimura, K., & Kasahara, H. (2011). Parallelizing compiler framework and API for power reduction and software productivity of real-time heterogeneous multicores. : Languages and Compilers for Parallel Computing - 23rd International Workshop, LCPC 2010, Revised Selected Papers (pp. 184-198). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 6548 LNCS). https://doi.org/10.1007/978-3-642-19595-2_13