Out-of-core solution of linear equations with non-symmetric coefficient matrix
Out-of-core solution of linear equations with non-symmetric coefficient matrix
复制标题
非对称系数矩阵线性方程的核外解
DOI：
10.1016/0045-7930(79)90003-3
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发表时间：
1979
影响因子：
2.8
通讯作者：
M. Engelman
中科院分区：
文献类型：
--
作者：
Y. Hasbani;M. Engelman
本文介绍了一个软件包的FOTRAN IV子程序的核心外组装和解决方案的线性方程组与非对称系数矩阵，满足在许多有限元应用。系数矩阵采用Skyline分块存储方式，线性方程组采用直接三角分解法求解。文中详细讨论了系统Ax= B的组装和求解中系数矩阵的分块存储方式和数据传输过程。从流体动力学领域的例子。
This paper presents a package of FOTRAN IV subroutines for the out-of-core assembly and solution of a system of linear equations with a non-symmetric coefficient matrix, as met in many finite element applications. A skyline block storage mode is used for the coefficient matrix and a direct triangular decomposition method is employed to solve the system of linear equations. The block partitioning and storage mode of the coefficient matrix and the data transfer procedures for the assembly and solution of the system Ax= b are discussed in detail. Examples from the field of fluid dynamics are presented.