Portable Acceleration of Materials Modeling Software: CASTEP, GPUs, and OpenACC

Portable Acceleration of Materials Modeling Software: CASTEP, GPUs, and OpenACC
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便携式材料建模加速软件:CASTEP、GPU 和 OpenACC

DOI:
10.1109/mcse.2022.3141714
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发表时间:
2022
影响因子:
2.1
通讯作者:
Smith M
Smith M
中科院分区:
计算机科学4区
文献类型:
--
作者:
Smith M

文献摘要

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在这篇文章中,我们提出的工作,端口CASTEP第一性原理材料建模程序的加速器使用开放式加速器(OpenACC)。我们讨论了图形处理单元(GPU)架构所带来的挑战和机遇,特别是在CASTEP OpenACC端口所采取的方法。虽然该端口仍在积极开发中,但早期的性能结果表明,可能会获得显着的速度提升,特别是对于使用所谓的“非局部泛函”的材料模拟,其中速度提升可以超过十倍。
In this article, we present work to port the CASTEP first-principles materials modeling program to accelerators using open accelerator (OpenACC). We discuss the challenges and opportunities presented by graphical processing units (GPU) architectures in particular, and the approach taken in the CASTEP OpenACC port. Whilst the port is still under active development, early performance results show that significant speed-ups may be gained, particularly for materials simulations using so-called “nonlocal functionals,” where speed-ups can exceed a factor of ten.