超並列計算機を用いた分散構造最適設計 : 最適化,構造解析の同時分散処理

概要

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The new computational algorithm for structural optimization that is suitable for massive parallel computers is proposed. Both analysis algorithm and optimization algorithm are paralleled simultaneously, which make it possible to use much more processors than the subdivision number of the structure. The 3 dimensional truss problems were solved as examples. For the parallel computation of analysis, it was shown that when the granularity of the computation for each processing element is small, the efficiency of parallel computation is low, but as the granularity increase, the efficiency also increase. For the parallel computation of the optimization, it was shown that not only the algorithm gives high efficiency, but also it often gives better solution which is closer to global optimal point. Finally both optimization and analysis are computed in parallel, and it was shown that quite high speed up rate can be obtained.
社団法人日本船舶海洋工学会の論文