摘要
给出了高维问题差分离散后形成的大型稀疏线性代数方程组预条件子的填充技术 ,讨论了填充与加速效率、计算量的关系。并把这一技术在实际应用问题中进行检验。
It presents an effective fill-in technology for the preconditioners of large sparse linear algebraic equations arising from the difference discretizations of high dimensional physical problems, and discusses the relations between fill-in and numerical costs. By using this technology into the practical problems for verification, numerical results obtained are well coincided with the theoretical analyses.
出处
《计算物理》
CSCD
北大核心
2000年第5期476-482,共7页
Chinese Journal of Computational Physics
基金
国家攀登项目
中物院科学基金
实验室试点基金
国家重点基础研究专项经费资助项目
关键词
稀疏矩阵
高维预条件子
填充技术
sparse matrix
high dimensional precoditioner
fill-in technology
