摘要
本文对求解大型线性方程组的异步并行迭代法进行了浮点运算的舍入误差分析,给出了算法是向前稳定的充分条件.
This paper deals with the rounding error analysis of asynchronous parallel iterations for large linear systems. Sufficient conditions for forward stability of asynchronous parallel iterations are given. Besides, we apply the result to the linear system that are generated from the discretization of two dimensional model problem-Δu+u=f.
出处
《应用数学》
CSCD
北大核心
1993年第2期178-182,共5页
Mathematica Applicata
关键词
舍入误差
迭代法
线性方程组
Round-off error
Forward stability
Asynchronous parallel iteration
