Acceleration of the anisotropic PSPI imaging algorithm with dataflow engines

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dc.contributor.authorTomas, Carlo
dc.contributor.authorCazzola, Luca
dc.contributor.authorOriato, Diego
dc.contributor.authorPell, Oliver
dc.contributor.authorTheis, Daniela
dc.contributor.authorSatta, Guido
dc.contributor.authorBonomi, Ernesto
dc.date.accessioned2014-05-14T10:04:55Z
dc.date.available2014-05-14T10:04:55Z
dc.date.issued2013-06
dc.description.abstractAlthough time-domain depth migration techniques have been successfully ported to run on modern hardware accelerators, their ultimate obstacle is the I/O overhead present during the imaging step. Frequency-domain depth migration algorithms overcome this limitation and can exploit the full potential of new computing technologies. In particular, our implementation of Phase Shift Plus Interpolation (PSPI) method is characterized by fast running time, good quality results under low signal-to-noise ratio conditions and excellent results for steep dips. We provide a novel computational dataflow scheme to perform acceleration of PSPI on a generic dataflow engine. We present speedup results obtained on the state-of-the-art dataflow technology for synthetic VTI datasets. Our measurements indicate that a dataflow approach can achieve high speedups despite larger and larger computational domains, increased complexity of the anisotropic approach and the I/O overhead during angle-gathers calculation.IT
dc.description.pagenumber3402-3406IT
dc.identifier.isbn9781622769452IT
dc.identifier.urihttp://hdl.handle.net/11050/900
dc.language.isoenIT
dc.publisherCurran AssociatesIT
dc.relation.ispartofSociety of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012 (SEG Las Vegas 2012)IT
dc.relation.ispartofseries5IT
dc.subjectprestack depth imagingIT
dc.subjectpspiIT
dc.subjecthpcIT
dc.subjectfpgaIT
dc.subjectdataflow enginesIT
dc.subject.een-cordisEEN CORDIS::FISICA E SCIENZE ESATTE::Scienze della terra ::Tettonica, sismologiaIT
dc.subject.programProgram::Energy and Environment::Imaging and Numerical Geophysics (ING)IT
dc.titleAcceleration of the anisotropic PSPI imaging algorithm with dataflow enginesIT
dc.typeContributo in un libroIT
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