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S-Lop:一种基于网络竞争机制、旨在提升MPI通信准确性的性能优化模型
本文提出S-Lop模型,改进τ-Lop模型以引入参数S表征网络争用,优化通信调度算法,并在Shanhe超算上验证。实验表明,SUMMA算法误差降低至1.078,优于τ-Lop的1.24,提升模型预测精度。 MPI通信是提升高性能计算(HPC)应用性能的关键因素之一。随着计算规模不断扩大 ...
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