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講演題目

Divide and Conquer Algorithms for Eigenvalue Problems on Distributed Memory Systems

詳細
開催日 2018年8月24日(金)
開催時間 14:00 - 15:00
開催都市 兵庫県神戸市
場所

R-CCS 6階講堂

使用言語 発表・スライド共に英語
登壇者

Daniel Patric Howard

大規模並列数値計算技術研究チーム

写真:Daniel Patric Howard

講演要旨

Cuppen's Algorithm has been extensively studied for its potential as a standard approach for solving special and generalized eigenvalue problems. However, when implemented on a distributed system, many processes will become idle as the divide and conquer methodology does not utilize half of the processing nodes after each merge step in the problem tree. This talk presents an overview of Cuppen's Algorithms and varying implementations to improve its efficiency. Comparisons will be made with the approaches taken in standard libraries like ScaLAPACK and Intel's MKL.

(2018年8月3日)