IWAVE defines a framework for time-stepping simulation based on regular grids. While any sort of time-dependent problem might be attacked with IWAVE tools, the target application is wave simulation by explicit finite difference or finite element methods. The guiding principle of the IWAVE project is to abstract from all simulators of the type just described the common attributes, including job control, memory allocation, and i/o, and provide code which realizes these common computations without requiring the user to redefine them. In the end, only six main functions are required, each of which defines a common interface to a model-defined computation. Generally, the user will also need to supply model-dependent functions to which the six main functions will delegate, but that is merely a matter of convenience and good code organization - in principle, six functions plus a driver are all that is required.
See the TRIP software page for current download and installation instructions and release notes.
- IWAVE core classes. -
- classes for regularly sampled gridded data. -
- SEGY/SU based classes for trace data. -
- general facilities for out of core data containers, used in grid and trace. -
- utility classes and functions - MPI interface, useful data structures, command line parameter parser, file management system
- Acoustic constant density finite difference modeling, uses (2,2k) schemes with cross stencil for 2nd order wave equation, pressure-free boundaries
- Acoustic variable density staggered grid finite difference modeling, uses (2,2k) schemes with cross stencil, pressure-free and PML boundaries
- Elastic staggered grid finite difference modeling, uses (2,2k) schemes with cross stencil
struct paper, also 08/09/10 annual report papers
The initial design of IWAVE, including basic data structures and computed
domain decomposition software, is due to Igor Terentyev [REF: Igor's
MA thesis]. He also created the first acoustic staggered grid
application within IWAVE, used to QC the Phase I SEAM acoustic model
data (ref to Fehler). Tetyana Vdovina added and tested the PML
implementation for the acoustic staggered grid code. William Symes,
Dong Sun, Xin Wang, Lei Fu, and Yin Huang have all contributed to
the development of IWAVE.
Maintained by William W. Symessymes@caam.rice.edu Photo courtesy Ivy Gonzalez
Last modified: Wed Dec 3 11:34:52 PST 2014