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Performance evaluation of the Sakurai-Sugiura method with a block Krylov subspace linear solver for large dense Hermitian-definite generalized eigenvalue problems
http://hdl.handle.net/2241/00157322
http://hdl.handle.net/2241/001573225dc45db9-4fc3-44c7-98f0-80fc8c0548cc
名前 / ファイル | ライセンス | アクション |
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JSIAML_10-77 (1.0 MB)
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Item type | Journal Article(1) | |||||||||||
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公開日 | 2019-08-09 | |||||||||||
タイトル | ||||||||||||
タイトル | Performance evaluation of the Sakurai-Sugiura method with a block Krylov subspace linear solver for large dense Hermitian-definite generalized eigenvalue problems | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
資源タイプ | ||||||||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
タイプ | journal article | |||||||||||
著者 |
二村, 保徳
× 二村, 保徳
WEKO
204770
× 今倉, 暁× 櫻井, 鉄也× Yano, Takahiro |
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Contour-integral based eigensolvers have been proposed for efficiently exploiting the performance of massively parallel computational environments. In the algorithms of these methods, inner linear systems need to be solved and its calculation time becomes the most time-consuming part for large-scale problems. In this paper, we consider applying a contour-integral based method to a large dense problem in conjunction with a block Krylov subspace method as an inner linear solver. Comparison of parallel performance with the contour-integral based method with a direct linear solver and a ScaLAPACK's eigensolver is shown using matrices from a practical application. | |||||||||||
書誌情報 |
JSIAM Letters 巻 10, p. 77-80, 発行日 2018-12 |
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ISSN | ||||||||||||
収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 1883-0609 | |||||||||||
DOI | ||||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | 10.14495/jsiaml.10.77 | |||||||||||
権利 | ||||||||||||
権利情報 | © 2018 Japan Society for Industrial and Applied Mathematics | |||||||||||
著者版フラグ | ||||||||||||
値 | publisher | |||||||||||
出版者 | ||||||||||||
出版者 | The Japan Society for Industrial and Applied Mathematics |