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Acceleration of the anisotropic PSPI imaging algorithm with dataflow engines

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dc.contributor.author Tomas, Carlo
dc.contributor.author Cazzola, Luca
dc.contributor.author Oriato, Diego
dc.contributor.author Pell, Oliver
dc.contributor.author Theis, Daniela
dc.contributor.author Satta, Guido
dc.contributor.author Bonomi, Ernesto
dc.date.accessioned 2014-05-14T10:04:55Z
dc.date.available 2014-05-14T10:04:55Z
dc.date.issued 2013-06
dc.identifier.isbn 9781622769452 IT
dc.identifier.uri http://hdl.handle.net/11050/900
dc.description.abstract Although 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.language.iso en IT
dc.publisher Curran Associates IT
dc.relation.ispartof Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012 (SEG Las Vegas 2012) IT
dc.relation.ispartofseries 5 IT
dc.subject prestack depth imaging IT
dc.subject pspi IT
dc.subject hpc IT
dc.subject fpga IT
dc.subject dataflow engines IT
dc.title Acceleration of the anisotropic PSPI imaging algorithm with dataflow engines IT
dc.type Contributo in un libro IT
dc.description.pagenumber 3402-3406 IT
dc.subject.een-cordis EEN CORDIS::FISICA E SCIENZE ESATTE::Scienze della terra ::Tettonica, sismologia IT
dc.subject.program Program::Energy and Environment::Imaging and Numerical Geophysics (ING) IT

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