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首页> 外文期刊>Chinese Journal of Electronics >Performance Optimization and Comparison of the Alternating Direction Implicit CFD Solver on Multi-core and Many-Core Architectures
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Performance Optimization and Comparison of the Alternating Direction Implicit CFD Solver on Multi-core and Many-Core Architectures

机译：多核和多核架构上交替方向隐式CFD解算器的性能优化和比较

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摘要

We accelerate a double precision Alternating direction implicit (ADI) solver for three-dimensional compressible Navier-Stokes equations from our in-house Computational fluid dynamics (CFD) software on the latest multi-core and many-core architectures (Intel Sandy Bridge CPUs, Intel Many integrated core (MIC) coprocessors and NVIDIA Kepler K20c GPUs). Some performance optimization techniques are detailed discussed. We provide an in-depth analysis on the performance difference between Sandy Bridge and MIC. Experimental results show that the proposed GPU-enabled ADI solver can achieve a speedup of 5.5 on a Kepler GPU in contrast to two Sandy Bridge CPUs and our optimization techniques can improve the performance of the ADI solver by 2.5-fold on two Sandy Bridge CPUs and 1.7-fold on an Intel MIC coprocessor. We perform a cross-platform performance analysis (between GPU and MIC), which serves as case studies for developers to select the right accelerators for their target applications.
机译：我们在最新的多核和多核体系结构（英特尔Sandy Bridge CPU，英特尔许多集成核心（MIC）协处理器和NVIDIA Kepler K20c GPU）。详细讨论了一些性能优化技术。我们对Sandy Bridge和MIC之间的性能差异进行了深入分析。实验结果表明，与两个Sandy Bridge CPU相比，所提出的支持GPU的ADI求解器在Kepler GPU上的速度提高了5.5，而我们的优化技术可以在两个Sandy Bridge CPU和英特尔MIC协处理器的1.7倍。我们执行跨平台性能分析（在GPU和MIC之间），作为案例研究，供开发人员为目标应用选择合适的加速器。

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