期刊刊名：崑山科技大學學報 　 卷期：10期

篇名出版日期：2015年9月1日

作者：曾建勳,Chien Hsun Tseng

語言：English

關鍵字：MDWDF,physical systems,shallow water equations,full parallel computing,IBM Cell/BE,物理系统,淺水波系統,偏微分方程式,充分並行運算

被點閱次數：1次

閱讀時間：7sec

摘要：
As an alternative approach for the numerical integration of physical systems, the MDWDF technique has become of importance due to its attractive features such as massive parallelism and high accuracy inherent in nature. In this report, speed-up efficiencies in terms of achieving full parallel computing is studied for a MDWDF network of the linearized shallow water (LSWE) system important in fluid dynamics. The full parallel process in the MDWDF network is carried out based on the chained MD retiming technique, a class of software pipelining, and being implemented on a Sony PS3 exploiting the parallelism in the IBM Cell Broadband Engine (Cell/BE) to improve performance. The IBM Cell/BE containing 1 power processor element (PPE) to provide system functions and 8 synergistic processor elements (SPEs) optimized for efficient data processing perfectly fits the architecture of the retimed MDWDF model, which requires at most 1 main processor and 7 routine processors running independently. Experimental results in terms of the computational efficiency have shown that the parallelized model with 8 processors (1PPE+7SPEs) outperforms the non-parallel model only with the PPE by 4x performance advantage.

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