Design and Development of Domain Specific Active Libraries with Proxy Applications
Design and Development of Domain Specific Active Libraries with Proxy Applications
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具有代理应用程序的领域特定活动库的设计和开发
DOI：
10.1109/cluster.2015.128
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Giles
中科院分区：
文献类型：
--
作者：
I. Reguly;G. Mudalige;M. Giles
代表性应用程序是评估新的编程方法、技术和优化的通用工具，是确保未来计算架构持续高性能的一种方式。在对大型科学代码进行更改/洞察之前，它们使实验变得容易得多。在本文中，我们展示了代表性/代理应用程序在设计和开发两种高级编程方法中所起的重要作用：即OP2和OPS领域特定（活动）库。OP2和OPS利用代码生成技术从高级抽象问题声明生成自动并行。该策略为领域科学家提供了显著的开发人员生产力，同时允许计算专家在库和代码生成工具中采用最新的编程模型和特定于硬件的优化，以实现接近最佳的性能。我们展示了代表性应用程序如何成为OP2和OPS开发的基石，并绘制了我们的经验图表。特别是，我们展示了CloverLeaf流体动力学小应用程序的手动调整优化并行的范围如何使我们获得明确的证据，证明基于OPS的代码生成的并行确实与手动调整的版本一样优化。此外，通过使用CFD领域的代表性应用程序，我们演示了如何将发现并应用于代理应用程序的优化确实直接转移到Rolls Royce plc的大规模工业应用程序中。这些结果为代表性应用程序的实用性提供了重要证据，这些应用程序可以提高生产力，实现性能可移植性，并最终实现面向未来的科学应用程序。
Representative applications are versatile tools to evaluate new programming approaches, techniques and optimisations as a way to ensure continued high performance on future computing architectures. They make experimentation much easier before adopting changes/insights into the large scientific codes. In this paper we demonstrate the important role played by representative/proxy applications in designing and developing two high-level programming approaches: namely the OP2 and OPS domain specific (active) libraries. OP2 and OPS utilizes code generation techniques to produce automatic parallelisations from a high-level abstract problem declaration. The strategy delivers significant developer productivity to the domain scientist, while at the same time allowing computational experts to adopt the latest programming models and hardware-specific optimisations into the library and code generation tools to achieve near optimal performance. We show how representative applications have been a cornerstone in the development of OP2 and OPS and chart our experiences. In particular, we demonstrate how the range of hand-tuned optimized parallelisations of the CloverLeaf hydrodynamics mini-app allowed us to gain clear evidence that the OPS based code generated parallelisations were indeed as optimal as the hand-tuned versions. Additionally, with the use of a representative application from the CFD domain we demonstrate how the optimisations discovered and applied to proxy apps are indeed directly transferable to a large-scale industrial application at Rolls Royce plc. These results provide significant evidence into the utility of representative applications to improve productivity, enable performance portability and ultimately future-proof scientific applications.
异构并行系统上的高级非结构化网格框架的设计和初始性能
影响因子：
1.4
作者：
Mudalige G
通讯作者：
Mudalige G
OP2框架在众核架构上的性能分析与优化
DOI：
10.1093/comjnl/bxr062
发表时间：
2011
期刊：
The Computer Journal
影响因子：
--
作者：
Giles M
通讯作者：
Giles M
多块结构化网格计算的 OPS 域特定抽象
DOI：
10.1109/wolfhpc.2014.7
发表时间：
2014
期刊：
--
影响因子：
--
作者：
Reguly I
通讯作者：
Reguly I