辺要素有限要素解析から得られる実対称線形方程式求解におけるICCG法の実用的実装の検討

概要

論文の詳細を見る
The ICCG (Incomplete Cholesky decomposition Conjugate Gradient) method is widely applied to the electromagnetic field analysis using edge-based finite element method. The elapsed time of ICCG method holds the majority of electromagnetic field analysis. The main parts of ICCG method, which are composed of IC decomposition, forward-backward substitution and matrix-vector product, substantially influence the elapsed time. Therefore, the arrangement of reasonable implementations for main parts contributes to the realization of fast electromagnetic field computation in domestic research institutes. This paper presents the practical implementation of main components in ICCG method. Further, we make the meaning of diagonal scaling in ICCG method clear.
一般社団法人電気学会の論文