NDLI: Design and Development of Domain Specific Active Libraries with Proxy Applications

Content Provider	IEEE Xplore Digital Library
Author	Reguly, I.Z. Mudalige, G.R. Giles, M.B.
Copyright Year	2015
Description	Author affiliation: Oxford e-Res. Centre, Univ. of Oxford, Oxford, UK (Reguly, I.Z.; Mudalige, G.R.; Giles, M.B.)
Abstract	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.
Starting Page	738
Ending Page	745
File Size	737718
Page Count	8
File Format	PDF
ISBN	9781467365987
DOI	10.1109/CLUSTER.2015.128
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Libraries Graphics processing units Programming Automotive components Optimization Computer architecture Computational modeling
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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