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首页> 外文期刊>Journal of supercomputing >Parallel optimization of three-dimensional wedge-shaped underwater acoustic propagation based on MPI+OpenMP hybrid programming model
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Parallel optimization of three-dimensional wedge-shaped underwater acoustic propagation based on MPI+OpenMP hybrid programming model

机译:基于MPI + OpenMP混合编程模型的三维楔形水下声学传播的平行优化

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摘要

The three-dimensional wedge-shaped underwater acoustic propagation model exists analytical solution, which provides verification for models like FOR3D propagation model under certain situation. However, the solving process of a three-dimensional complex underwater sound field problem is hindered by intensive computing and long calculation times. In this paper, we exploit a hybrid parallel programing model, such as MPI and OpenMP, to accelerate the computation, design various optimization methods to improve the overall performance, and then carry out the performance and optimization analysis on the Tianhe-2 platform. Experiments show that the optimized implementation of the three-dimensional wedge-shaped underwater acoustic propagation model achieves a 46.5 speedup compared to the original serial program, thereby illustrating a substantial performance improvement. We also carried out scalability tests and parallel optimization experiments for large-scale practical examples.
机译:三维楔形水下的水下声波传播模型存在分析解决方案,在某些情况下为FOR3D传播模型等模型提供验证。 然而,通过密集的计算和长计算时间阻碍了三维复杂水下声场问题的求解过程。 在本文中,我们利用混合并行编程模型,如MPI和OpenMP,加速计算,设计各种优化方法,以提高整体性能,然后对天河2平台进行性能和优化分析。 实验表明,与原始串行程序相比,三维楔形水下水下声学传播模型的优化实现实现了46.5加速,从而说明了实质性的性能改善。 我们还对大规模实际示例进行了可扩展性测试和并行优化实验。

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