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Behavioral Emulation for Scalable Design-Space Exploration of Algorithms and Architectures Read chapter Read first chapter

2016 | OriginalPaper | Chapter

Software Cost Analysis of GPU-Accelerated Aeroacoustics Simulations in C++ with OpenACC

Authors : Marco Nicolini, Julian Miller, Sandra Wienke, Michael Schlottke-Lakemper, Matthias Meinke, Matthias S. Müller

Published in: High Performance Computing

Publisher: Springer International Publishing

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Abstract

Aeroacoustics simulations leverage the tremendous computational power of today’s supercomputers, e.g., to predict the noise emissions of airplanes. The emergence of GPUs that are usable through directive-based programming models like OpenACC promises a cost-efficient solution for flow-induced noise simulations with respect to hardware expenditure and development time. However, OpenACC’s capabilities for real-world C++ codes have been scarcely investigated so far and software costs are rarely evaluated and modeled for this kind of high-performance projects. In this paper, we present our OpenACC parallelization of ZFS, an aeroacoustics simulation framework written in C++, and its early performance results. From our implementation work, we derive common pitfalls and lessons-learned for real-world C++ codes using OpenACC. Furthermore, we borrow software cost estimation techniques from software engineering to evaluate the development efforts needed in a directive-based HPC environment. We discuss applicability and challenges of the popular COCOMO II model applied to the parallelization of ZFS.

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Metadata
Title
Software Cost Analysis of GPU-Accelerated Aeroacoustics Simulations in C++ with OpenACC
Authors
Marco Nicolini
Julian Miller
Sandra Wienke
Michael Schlottke-Lakemper
Matthias Meinke
Matthias S. Müller
Copyright Year
2016
Book
High Performance Computing

Print ISBN: 978-3-319-46078-9

Electronic ISBN: 978-3-319-46079-6

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-3-319-46079-6_36