Publication Date:
2017-04-04
Description:
We investigate a fast and easy way to parallelise seismological serial codes mainly oriented for simulating the
seismic wave propagation through anelastic dissipative media. Having an efficient modelling tool is important
in both assessing strong ground motion and mitigation of seismic hazard when the site effects are considered,
and in crustal propagation when the crustal geological structures are of interest. Our chosen case study is repre-
sentative of a set of such seismological 3D problems. The Scalable Modelling System (SMS) tool for paralleliza-
tion is considered. The IBM SP5 native compiler has been used. Results such as Speed-Up and Efficiency are
shown and discussed. SMS can run both in shared and distributed memory environments. The greater advantages
of using SMS in such environments become apparent with the utilisation of a higher number of multiprocessor
machines arranged in a cluster. We also demonstrate how successful porting from serial to parallel codes is re-
alised by way of minimal instructions (6% of the serial original code only) provided that an ad hoc profiling
analysis of the serial code is first performed.
Description:
Part of the research activities have been carried on by A. Caserta, for his PhD study, in cooperation with the Charles University in Prague (Czech Republic) and in the frame of the projects GACR 205/07/0502 and MSM 0021620860.
Description:
Published
Description:
503-514
Description:
4.1. Metodologie sismologiche per l'ingegneria sismica
Description:
JCR Journal
Description:
open
Keywords:
parallel computing
;
seismic wave propagation
;
numerical simulations
;
site effects
;
01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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