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

2016 | OriginalPaper | Chapter

High Performance Computing on the IBM Power8 Platform

Authors : István Z. Reguly, Abdoul-Kader Keita, Rafik Zurob, Michael B. Giles

Published in: High Performance Computing

Publisher: Springer International Publishing

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Abstract

This paper discusses the performance of IBM’s Power8 CPUs, on a number of skeleton, financial and CFD benchmarks and applications. Implicitly, the performance of the software toolchain is also tested - the bare-bones Little-Endian Ubuntu, the GNU 5.3 and the XL 14.1.3 compilers and OpenMP runtimes. First, we aim to establish some roofline numbers on bandwidth and compute throughput, then move on to benchmark explicit and implicit one-/three-factor Black-Scholes computations, and CFD applications based on the OP2 and OPS frameworks, such as the Airfoil and BookLeaf unstructured-mesh codes, and the CloverLeaf 2D/3D structured mesh simulations. These applications all exhibit different characteristics in terms of computations, communications, memory access patterns, etc. Finally we briefly discuss performance of an industrial CFD code, Rolls-Royce Hydra, and we show initial results from IBM’s CUDA Fortran compiler. Both absolute and relative performance metrics are computed and compared to NVIDIA GPUs and Intel Xeon CPUs.

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previous chapter First Experiences with ab initio Molecular Dynamics on OpenPOWER: The Case of CPMD
next chapter Measuring and Managing Energy in OpenPOWER
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Reguly, I.Z., László, E., Mudalige, G.R., Giles, M.B.: Vectorizing unstructured mesh computations for many-core architectures. In: Proceedings of the Programming Models and Applications on Multicores and Manycores, PMAM 2014, pp. 39:39–39:50. ACM, New York (2007)
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Metadata
Title
High Performance Computing on the IBM Power8 Platform
Authors
István Z. Reguly
Abdoul-Kader Keita
Rafik Zurob
Michael B. Giles
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_17