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Performance evaluation of explicit finite difference algorithms with varying amounts of computational and memory intensity

Jammy, Satya, Jacobs, Christian and Sandham, Neil (2016) Performance evaluation of explicit finite difference algorithms with varying amounts of computational and memory intensity Journal of Computational Science, pp. 1-15.

Record type: Article

Abstract

Future architectures designed to deliver exascale performance motivate the need for novel algorithmic changes in order to fully exploit their capabilities. In this paper, the performance of several numerical algorithms, characterised by varying degrees of memory and computational intensity, are evaluated in the context of finite difference methods for fluid dynamics problems. It is shown that, by storing some of the evaluated derivatives as single thread- or process-local variables in memory, or recomputing the derivatives on-the-fly, a speed-up of ~2 can be obtained compared to traditional algorithms that store all derivatives in global arrays.

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More information

Accepted/In Press date: 27 October 2016
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 402148
URI: http://eprints.soton.ac.uk/id/eprint/402148
ISSN: 1877-7503
PURE UUID: 04c280d5-61c5-49b6-81be-d7caaff031b5
ORCID for Christian Jacobs: ORCID iD orcid.org/0000-0002-0034-4650

Catalogue record

Date deposited: 02 Nov 2016 13:58
Last modified: 17 Jul 2017 17:54

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