The fast Fourier transform and its applications
The fast Fourier transform and its applications
Second-order absorbing boundary conditions for the wave equation: a solution for the corner problem
SIAM Journal on Numerical Analysis
Matrix-dependent prolongations and restrictions in a blackbox multigrid solver
Journal of Computational and Applied Mathematics
SIAM Journal on Scientific and Statistical Computing
Parallel programming with MPI
Flexible Multiple Semicoarsening for Three-Dimensional Singularly Perturbed Problems
SIAM Journal on Scientific Computing
A multigrid tutorial: second edition
A multigrid tutorial: second edition
First-Order System Least-Squares for the Helmholtz Equation
SIAM Journal on Scientific Computing
Multigrid
MPI-The Complete Reference, Volume 1: The MPI Core
MPI-The Complete Reference, Volume 1: The MPI Core
Computer Solution of Large Sparse Positive Definite
Computer Solution of Large Sparse Positive Definite
A Multigrid Method Enhanced by Krylov Subspace Iteration for Discrete Helmholtz Equations
SIAM Journal on Scientific Computing
Multigrid Simulation for High-Frequency Solutions of the Helmholtz Problem in Heterogeneous Media
SIAM Journal on Scientific Computing
Separation-of-variables as a preconditioner for an iterative Helmholtz solver
Applied Numerical Mathematics
Iterative Methods for Sparse Linear Systems
Iterative Methods for Sparse Linear Systems
On a class of preconditioners for solving the Helmholtz equation
Applied Numerical Mathematics
A perfectly matched layer for the Helmholtz equation in a semi-infinite strip
Journal of Computational Physics
A Novel Multigrid Based Preconditioner For Heterogeneous Helmholtz Problems
SIAM Journal on Scientific Computing
Partial Differential Equations: Modeling, Analysis, Computation (Siam Monographs on Mathematical Modeling and Computation) (Saim Models on Mathematical Modeling and Computation)
A composite preconditioner for the electromagnetic scattering from a large cavity
Journal of Computational Physics
Robust and highly scalable parallel solution of the Helmholtz equation with large wave numbers
Journal of Computational and Applied Mathematics
Journal of Computational Physics
Three-dimensional visco-acoustic modeling using a renormalized integral equation iterative solver
Journal of Computational Physics
Hi-index | 31.46 |
We investigate the parallel performance of an iterative solver for 3D heterogeneous Helmholtz problems related to applications in seismic wave propagation. For large 3D problems, the computation is no longer feasible on a single processor, and the memory requirements increase rapidly. Therefore, parallelization of the solver is needed. We employ a complex shifted-Laplace preconditioner combined with the Bi-CGSTAB iterative method and use a multigrid method to approximate the inverse of the resulting preconditioning operator. A 3D multigrid method with 2D semi-coarsening is employed. We show numerical results for large problems arising in geophysical applications.