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Petascale computing and resolution in global seismic tomography

Boschi, L. and Ampuero, J. P. and Peter, D. and Mai, P. M. and Soldati, G. and Giardini, D. (2007) Petascale computing and resolution in global seismic tomography. Physics of the Earth and Planetary Interiors, 163 (1-4). pp. 245-250. ISSN 0031-9201. doi:10.1016/j.pepi.2007.02.011.

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Will the advent of "petascale" computers be relevant to research in global seismic tomography? We illustrate here in detail two possible consequences of the expected leap in computing capability. First, being able to identify larger sets of differently regularized/parameterized solutions in shorter times will allow to evaluate their relative quality by more accurate statistical criteria than in the past. Second. it will become possible to compile large databases of sensitivity kernels, and update them efficiently in a non-linear inversion while iterating towards an optimal solution. We quantify the expected computational cost of the above endeavors. as a function of model resolution, and of the highest considered seismic-wave frequency. (c) 2007 Elsevier B.V. All rights reserved.

Item Type:Article
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URLURL TypeDescription
Ampuero, J. P.0000-0002-4827-7987
Mai, P. M.0000-0002-9744-4964
Additional Information:© 2007 Elsevier B.V. All rights reserved. Received 11 January 2007; accepted 23 February 2007. Available online 7 March 2007.
Group:Seismological Laboratory
Subject Keywords:tomography; finite-frequency; resolution; computational seismology; inverse theory
Issue or Number:1-4
Record Number:CaltechAUTHORS:BOSpepi07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13743
Deposited By: Ruth Sustaita
Deposited On:14 Jul 2009 16:54
Last Modified:08 Nov 2021 22:40

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