Loading...
Loading...

Go to the content (press return)

Alternating direction implicit time integrations for finite difference acoustic wave propagation: parallelization and convergence

Author
Otero, B.; Rojas, O.; Moya, F.; Castillo, J.
Type of activity
Journal article
Journal
Computers and fluids
Date of publication
2020-06-15
Volume
205
Number
article 104584
First page
1
Last page
12
DOI
10.1016/j.compfluid.2020.104584
Project funding
Multiscale Inversion of Porous Rock Physics using High-Performance Simulators: Bridging the Gap between Mathematics and Geophysics
Repository
http://arxiv.org/abs/2006.07583 Open in new window
http://hdl.handle.net/2117/190495 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S0045793020301560 Open in new window
Abstract
This work studies the parallelization and empirical convergence of two finite difference acoustic wave propagation methods on 2-D rectangular grids, that use the same alternating direction implicit (ADI) time integration. This ADI integration is based on a second-order implicit Crank-Nicolson temporal discretization that is factored out by a Peaceman-Rachford decomposition of the time and space equation terms. In space, these methods highly diverge and apply different fourth-order accurate diffe...
Citation
Otero, B. [et al.]. Alternating direction implicit time integrations for finite difference acoustic wave propagation: parallelization and convergence. "Computers and fluids", 15 Juny 2020, vol. 205, article 104584, p. 1-12.
Keywords
ADI, CUDA and OpenMP programming, Compact finite differences, Mimetic operators
Group of research
VIRTUOS - Virtualisation and Operating Systems

Participants