階層型ワークステーションクラスタによる有限要素解析の高速化 : 剛性方程式の並列高速求解

概要

論文の詳細を見る
In general, most of execution time for large scale forging simulations by rigid plastic finite element method is spent to solve linear equations called stiffness equation. For speedup of large scale forging simulations, it is necessary to solve stiffness equation at high speed. In this paper, we present the result of accelerated computation for stiffness equation by the parallelized conjugated gradient method on the distributed multiprocessor system called cluster of workstations. As a result, the cluster of workstations, which are inter connected hierarchically by high speed network, spend less communication time than the ordinary non-hierarchical cluster of workstations. By using high speed network TPDDI (Twisted Pair Distributed Data Interface) and three-class model of hierarchical cluster of workstations which has two layers of slave CPUs, we achieved 50% reduction of communication time and about fivefold speedup of execution time of the parallelized conjugated gradient method by sixteen slave CPUs.
社団法人日本機械学会の論文
1998-11-25