ePubs
The open archive for STFC research publications
Home
About ePubs
Content Policies
News
Help
Privacy/Cookies
Suggest an Enhancement
Contact ePubs
Full Record Details
Persistent URL
http://purl.org/net/epubs/work/66378
Record Status
Checked
Record Id
66378
Title
Benchmark Study of a 3d Parallel Code for the Propagation of Large Subduction Earthquakes
Contributors
M Chavez
,
E Cabrera
,
R Madariaga
,
N Perea
,
C Moulinec (STFC Daresbury Lab.)
,
DR Emerson (STFC Daresbury Lab.)
,
M Ashworth (STFC Daresbury Lab.)
,
A Salazar
Abstract
Benchmark studies were carried out on a recently optimized parallel 3D seismic wave propagation code that uses finite differences on a staggered grid with 2 nd order operators in time and 4 th order in space. Three dual-core supercomputer platforms were used to run the parallel program using MPI. Efficiencies of 0.91 and 0.48 with 1024 cores were obtained on HECToR (UK) and KanBalam (Mexico), and 0.66 with 8192 cores on HECToR. The 3D velocity field pattern from a simulation of the 1985 Mexico earthquake (that caused the loss of up to 30000 people and about 7 billion US dollars) which has reasonable agreement with the available observations, shows coherent, well developed surface waves propagating towards Mexico City.
Organisation
CSE
,
CSE-CEG
,
STFC
Keywords
benchmark
,
natural environment
,
earthquake
,
parallel computing
,
modelling
,
finite difference
,
engineering
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Paper In Conference Proceedings
In 15th European PVM/MPI Users’ Group Meeting, Dublin, Ireland, 7-10 Sep 2008, (2008): 303-310.
doi:10.1007/978-3-540-87475-1_41
2008
Showing record 1 of 1
Recent Additions
Browse Organisations
Browse Journals/Series
Login to add & manage publications and access information for OA publishing
Username:
Password:
Useful Links
Chadwick & RAL Libraries
SHERPA FACT
SHERPA RoMEO
SHERPA JULIET
Journal Checker Tool
Google Scholar