183.equake
SPEC CPU2000 Benchmark Description File
Benchmark Name
183.equake
Benchmark Authors
David R. O'Hallaron and Loukas F. Kallivokas
Benchmark Program General Category
Simulation of seismic wave propagation in large basins
Benchmark Description
The program simulates the propagation of elastic waves in large, highly
heterogeneous valleys, such as California's San Fernando Valley, or the
Greater Los Angeles Basin. The goal is to recover the time history of the
ground motion everywhere within the valley due to a specific seismic event.
Computations are performed on an unstructured mesh that locally resolves
wavelengths, using a finite element method.
Input Description
The input data comprises the unstructured grid topology, i.e., number of
nodes, number of tetrahedral elements, node coordinates, and element
connectivity, the seismic event characteristics, i.e. duration and seismic
source specifics, material properties, and the structure of the sparse
system matrix. The underlying reference problem is the simulation of 1994
Northridge Earthquake aftershock in the San Fernando Valley of Southern
California.
Output Description
The output file contains a case summary with seismic source data and
reports the motion (displacements) at both the hypocenter and epicenter of
the earthquake for a predetermined number of simulation timesteps. The
output file format is ASCII.
Programming Language
ANSI C
Known portability issues
None
Reference
http://www.cs.cmu.edu/~quake
H. Bao, J. Bielak, O. Ghattas, L. F. Kallivokas, D. R. O'Hallaron, J.
R. Shewchuk, J. Xu, "Large-scale simulation of elastic wave
propagation in heterogeneous media on parallel computers," Computer
Methods in Applied Mechanics and Engineering, 152(1-2), 85-102, 1998
Last Updated: 13 October 1999
