Editing RSF School and Workshop, Vancouver 2006 (section)

=== Randy Selzler: PSEIS, A Processing Architecture Blueprint ===

The Parallel Seismic Earth Imaging System (PSEIS1) is a software package that is envisioned as a successor to DDS2. It will retain the high efficiency that made DDS suitable for production processing at a leading HPC facility. Its flexibility will continue to facilitate advanced research in seismic processing and imaging. It will also continue to inter-operate with other processing system in order to maximize total value. The new system provides an alternative to MPI for parallel processing on distributed-memory machines. By tailoring it specifically for seismic processing, applications will be easier to develop, maintain and execute, while remaining efficient and scalable. This scheme is described in a companion paper session “PSEIS, Blueprint for Parallel Processing.”
The system supports parallel I/O by slicing data set dimensions across independent file systems. I/O can split headers and samples into separate file for special processing. Two user interfaces are provided that complement each other. Power users can leverage existing skills with scripts and casual users can benefit from the GUI. Object-Oriented technology is used to improve robustness, functionality and long term cost.