Performance of Scientific Applications on Modern Supercomputers

Frank Deserno (), Georg Hager (), Frank Brechtefeld and Gerhard Wellein ()
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Frank Deserno: Regionales Rechenzentrum Erlangen
Georg Hager: Regionales Rechenzentrum Erlangen
Frank Brechtefeld: Regionales Rechenzentrum Erlangen
Gerhard Wellein: Regionales Rechenzentrum Erlangen

A chapter in High Performance Computing in Science and Engineering, Munich 2004, 2005, pp 3-25 from Springer

Abstract: Abstract We discuss performance characteristics of scientific applications on modern computer architectures, ranging from commodity “off-the-shelf” (COTS) systems like clusters, to tailored High Performance Computing (HPC) systems, e.g. NEC SX6 or CRAY X1. The application programs are selected from important HPC projects which have been supported by the KONWIHR project cxHPC. In general we focus on the single processor performance and give some optimisation/parallelisation hints, if appropriate. For computational fluid dynamics (CFD) applications we also discuss parallel performance to compare COTS with tailored HPC systems. We find, that an HPC environment with a few tailored “central” high-end systems and “local” mid-size COTS systems supports our users' requirements best.

Keywords: High Performance Computing; Memory Bandwidth; Cache Line; Shared Memory System; High Performance Computing System (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-26657-0_1

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DOI: 10.1007/3-540-26657-7_1

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