将 A64FX 处理器的软件流水线引入 LLVM

Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region Workshops Pub Date : 2024-01-11 DOI:10.1145/3636480.3637093

Masaki Arai, Naoto Fukumoto, Hitoshi Murai

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引用次数: 0

摘要

软件流水线是加速 CPU 上高性能计算（HPC）应用的重要优化手段。现代 CPU 通过多核和宽 SIMD 指令实现高性能。软件流水线技术是一种优化技术，通过与这些功能配合，可进一步提高高性能计算应用的性能。虽然 GCC 和 LLVM 等开源编译器已经实现了软件流水线功能，但在 AArch64 架构上还未得到充分利用。为了改善这种状况，我们在 LLVM 上为 A64FX 处理器实现了软件流水线功能。本文介绍了这一实现的细节。我们还证实，我们的实现提高了几个基准程序的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Introducing software pipelining for the A64FX processor into LLVM

Software pipelining is an essential optimization for accelerating High-Performance Computing(HPC) applications on CPUs. Modern CPUs achieve high performance through many-core and wide SIMD instructions. Software pipelining is an optimization that promotes further performance improvement of HPC applications by cooperating with these functions. Although open source compilers such as GCC and LLVM have implemented software pipelining, it is underutilized for the AArch64 architecture. We have implemented software pipelining for the A64FX processor on LLVM to improve this situation. This paper describes the details of this implementation. We also confirmed that our implementation improves the performance of several benchmark programs.

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Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region Workshops

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