Accelerating magnetic induction tomography-based imaging through heterogeneous parallel computing

Walker, David W. ORCID: https://orcid.org/0000-0002-1360-6330, Kramer, Stephan C., Biebl, Fabian R. A., Ledger, Paul D. and Brown, Malcolm ORCID: https://orcid.org/0000-0002-2871-6591 2019. Accelerating magnetic induction tomography-based imaging through heterogeneous parallel computing. Concurrency and Computation: Practice and Experience 31 (17) , e5265. 10.1002/cpe.5265

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Abstract

Magnetic Induction Tomography (MIT) is a non‐invasive imaging technique, which has applications in both industrial and clinical settings. In essence, it is capable of reconstructing the electromagnetic parameters of an object from measurements made on its surface. With the exploitation of parallelism, it is possible to achieve high quality inexpensive MIT images for biomedical applications on clinically relevant time scales. In this paper we investigate the performance of different parallel implementations of the forward eddy current problem, which is the main computational component of the inverse problem through which measured voltages are converted into images. We show that a heterogeneous parallel method that exploits multiple CPUs and GPUs can provide a high level of parallel scaling, leading to considerably improved runtimes. We also show how multiple GPUs can be used in conjunction with deal.II, a widely‐used open source finite element library.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Advanced Research Computing @ Cardiff (ARCCA) Computer Science & Informatics
Publisher:	Wiley
ISSN:	1532-0626
Funders:	EPSRC
Date of First Compliant Deposit:	12 April 2019
Date of Acceptance:	7 March 2019
Last Modified:	25 Oct 2022 14:08
URI:	https://orca.cardiff.ac.uk/id/eprint/121737

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