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Parallel Constraint-Based Local Search on the Cell/BE Multicore Architecture

机译:Cell / BE多核体系结构上基于并行约束的本地搜索

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We investigate the use of the Cell Broadband Engine (Cell/BE) for Com-binatorial Optimization applications. We present a parallel version of a constraint-based Local Search algorithm which was chosen because it fits very well the Cell/BE architecture since it requires neither shared memory nor communication between processors. The performance study on several large optimization benchmarks shows mostly linear time speedups, even sometimes super-linear. These experiments were done on a Dual-Cell IBM Blade with 16 processors. Besides getting speedups, the execution times exhibit a much smaller variance, which benefits applications where a timely reply is critical.
机译:我们调查了组合优化应用程序对单元宽带引擎(Cell / BE)的使用。我们提出了基于约束的本地搜索算法的并行版本,之所以选择该并行版本,是因为它非常适合Cell / BE体系结构,因为它既不需要共享内存,也不需要处理器之间的通信。对几个大型优化基准进行的性能研究显示,线性时间加速主要是线性的,甚至有时是超线性的。这些实验是在具有16个处理器的双单元IBM Blade上完成的。除了提高速度外,执行时间的差异也小得多,这对需要及时答复的应用程序有利。

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