Mixed Time Integration Parallel Algorithm for Structural Dynamic Analysis

摘要

The purpose of the paper is to describe and study the increase in speed which can be achieved by the implementation of subcycling in an explicit finite element parallel program executed on distributed memory MIMD computer. When problems contain elements of varying sizes and material properties, based on domain decomposition method, a new mixed time integration parallel algorithm for structural dynamic analysis is presented and implemented on multi-processors cluster. The program applies the usual message-passing parallelization technique based on the message-passing library PVM (parallel virtual machine). Finally, numerical examples show the efficiency of parallelization on the speed-up achieved with subcycling.