TY - GEN

T1 - Parallel algorithm for one-way wave equation based migration for seismic imaging

AU - Pleshkevich, Alexander

AU - Vishnevsky, Dmitry

AU - Lisitsa, Vadim

AU - Levchenko, Vadim

N1 - Publisher Copyright: © 2019, Springer Nature Switzerland AG.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Seismic imaging is the final stage of the seismic processing allowing to reconstruct the internal subsurface structure. This procedure is one of the most time consuming and it requires huge computational resources to get high-quality amplitude-preserving images. In this paper, we present a parallel algorithm of seismic imaging, based on the solution of the one-way wave equation. The algorithm includes parallelization of the data flow, due to the multiple sources/receivers pairs processing. Wavefield extrapolation is performed by pseudo-spectral methods and applied by qFFT - each dataset is processed by a single MPI process. Common-offset vector images are constructed using all the solutions from all datasets thus by all-to-all MPI communications.

AB - Seismic imaging is the final stage of the seismic processing allowing to reconstruct the internal subsurface structure. This procedure is one of the most time consuming and it requires huge computational resources to get high-quality amplitude-preserving images. In this paper, we present a parallel algorithm of seismic imaging, based on the solution of the one-way wave equation. The algorithm includes parallelization of the data flow, due to the multiple sources/receivers pairs processing. Wavefield extrapolation is performed by pseudo-spectral methods and applied by qFFT - each dataset is processed by a single MPI process. Common-offset vector images are constructed using all the solutions from all datasets thus by all-to-all MPI communications.

KW - CUDA

KW - MPI

KW - Nested OMP

KW - One-way wave equation

KW - Pseudo-spectral methods

KW - qFFT

UR - http://www.scopus.com/inward/record.url?scp=85059886979&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-05807-4_11

DO - 10.1007/978-3-030-05807-4_11

M3 - Conference contribution

AN - SCOPUS:85059886979

SN - 9783030058067

T3 - Communications in Computer and Information Science

SP - 125

EP - 135

BT - Supercomputing - 4th Russian Supercomputing Days, RuSCDays 2018, Revised Selected Papers

PB - Springer-Verlag GmbH and Co. KG

T2 - 4th Russian Supercomputing Days Conference, RuSCDays 2018

Y2 - 24 September 2018 through 25 September 2018

ER -