Accession Number : ADA325872

Title :   Applications of Parallel Computing Algorithms to Three-Dimensional Modeling of Seismic Waves Generated by Complex Sources in Homogeneous Media.

Descriptive Note : Final rept. 14 Jul 95-30 Nov 96,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE EARTH RESOURCES LAB

Personal Author(s) : Doll, Charles G., Jr. ; Matarese, Joseph R. ; Nolte, Bertram

PDF Url : ADA325872

Report Date : 15 JAN 1997

Pagination or Media Count : 21

Abstract : We describe a hardware upgrade that was performed on the nCUBE 2 massively parallel computer at MIT's Earth Resources Laboratory. The upgrade involved the installation of additional memory, additional disk space, and an additional small nCUBE 2 computer. The reason for performing the upgrade was to provide ERL with a computational environment suitable for conducting large-scale 2-D and 3-D wave propagation simulations. We also describe two recent projects that were performed on the upgraded nCUBE 2. One project was a 3-D simulation of earthquake-generated ground motion in the Boston Basin. The other project was the development of a parallel irregular-grid modeling code which is well-suited for 2-D modeling of regional wave propagation in the presence of surface topography.

Descriptors :   *PARALLEL PROCESSING, *GROUND MOTION, *EARTHQUAKES, ALGORITHMS, COMPUTERIZED SIMULATION, THREE DIMENSIONAL, FINITE DIFFERENCE THEORY, SEISMIC DATA, EARTH SURFACE, EARTH MODELS, SEDIMENTATION, PRIMARY WAVES(SEISMIC WAVES).

Subject Categories : Seismology
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE