Performance optimization of SpMV using CRS format by considering OpenMP scheduling on CPUs and MIC

Satoshi Ohshima, Takahiro Katagiri, Masaharu Matsumoto

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    5 被引用数 (Scopus)

    抄録

    In this study, we evaluate the performance of sparse matrix-vector multiplication (SpMV) using the compressed row storage (CRS) format on CPUs and MIC. We focus on the relationship between OpenMP scheduling and performance. The performance of SpMV is measured using various OpenMP scheduling settings and the results are analyzed, which show that OpenMP scheduling has a considerable effect on the performance of SpMV. We confirm that some scheduling settings resulted in performance improvements compared with default scheduling for particular matrices. The results of the evaluation show that the performance of SpMV is improved by up to 1.57 times compared with SPARC64 IXfx, 2.47 times compared with Xeon Ivy Bridge-EP, and 2.26 times compared with Knights Corner. Next, we modify the SpMV function of OpenATLib, an auto-tuned numerical library, to consider the scheduling of optimization as an additional SpMV implementation. We measure the performance of the GMRES solver and obtain performance improvements of up to 11.4%. These results will help to improve the performance of various numerical calculation applications.

    本文言語英語
    ホスト出版物のタイトルProceedings - 2014 IEEE 8th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2014
    出版社Institute of Electrical and Electronics Engineers Inc.
    ページ253-260
    ページ数8
    ISBN(電子版)9781479943050
    DOI
    出版ステータス出版済み - 11 6 2014
    イベント2014 8th IEEE International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2014 - Aizu-Wakamatsu, 日本
    継続期間: 9 23 20149 25 2014

    出版物シリーズ

    名前Proceedings - 2014 IEEE 8th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2014

    その他

    その他2014 8th IEEE International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2014
    Country日本
    CityAizu-Wakamatsu
    Period9/23/149/25/14

    All Science Journal Classification (ASJC) codes

    • Hardware and Architecture
    • Electrical and Electronic Engineering

    フィンガープリント 「Performance optimization of SpMV using CRS format by considering OpenMP scheduling on CPUs and MIC」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル