著者

阿部 譲司 塩出 亮 藤野 清次

出版者

Japan Society for Simulation Technology

雑誌

日本シミュレーション学会論文誌 (ISSN:18835031)

巻号頁・発行日

vol.7, no.1, pp.27-35, 2015

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The Crout variant of ILU preconditioner devised recently has been to have some advan-tages over conventional row-based ILU preconditioner. One of advantages is to be able to adopt a dropping strategy for estimating column norm of inverse <i>U</i>⁻¹. This paper shows how to extend this inverse-based dropping strategy to solve a linear system of equations with symmetric positive definite matrix. Furthermore this paper reveals significant characteristics of inverse-based dropping strategy through numerical experi-ments.<br>