摘要
根据边界元方法形成的系数矩阵的形态特点和计算机多核技术,提出了利用异步IO线程实现的矩阵并行生成算法和基于处理器时滞的线性稠密阵的并行SOR迭代解法,实现了注射模冷却过程模拟的并行计算,解决了该过程中所采用的边界元方法不适应并行计算的难题.数值结果表明,该算法在双核计算机上缩短了注射模冷却过程模拟1/3的计算时间.
Characterized by matrices in boundary element method, a parallel algorithm for numerical simulation of the cooling process of the injection moulds was presented, which is suited to multi-core personal computers and can use boundary element method in parallel computing. This algorithm in- cludes parallel matrices generation using asynchronous in/out （IO） thread and parallel successive over relaxation （SOR） method baaed on time lags between processors. Numerical results show that the algorithm reduces 1/3 numerical simulation time of the cooling process of injection moulds on dual-core computers.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第4期21-24,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50675080)
高等学校博士学科点专项基金资助项目(20060487056)
关键词
塑料成型
冷却系统
并行算法
数值模拟
边界元方法
松弛迭代
plastics moulding
cooling system
parallel algorithms
numerical simulation
boundary element method
successive over relaxation
