Publikationsdatum:
2017-04-04
Beschreibung:
In this work we propose a high performance parallelization of the software package COMPSYN, devoted to
the production of syntethic seismograms, on a cluster of multicore processors with multiple GPUs. To design and
implement the proposed high performance version, we started from a na¨ıve parallel version of COMPSYN. The
na¨ıve version consists in a simple parallelization on both device side, obtained by exploiting CUDA, and host side,
obtained by exploiting the MPI paradigm and OpenMP API. The proposed high performance version implements
several practical techniques of CUDA programming and deeply exploits the GPU architecture, thus achieving a much
better performance with respect to the na¨ıve version. We compare the performance of the proposed high performance
version and that of the na¨ıve one with the performance of the version running on the cluster of multicore processors
without invoking the GPUs. We obtain for the high performance GPU version a speedup of 25x over the version
running on the cluster of multicore processors without GPUs against the 10x of the na¨ıve version. Regarding the
sequential version, we estimate about 380x the speedup of the high performance GPU version against the about 140x
of the na¨ıve version.
Beschreibung:
Collaboration Agreement between Dept. of
Computer Science, Sapienza University of Rome and Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, 2011. Project n. C26G074ABJ, 2007, Cluster of multicore processor for
advanced computation, Sapienza University of Rome.
Beschreibung:
Published
Beschreibung:
966-975
Beschreibung:
4.1. Metodologie sismologiche per l'ingegneria sismica
Beschreibung:
4.2. TTC - Modelli per la stima della pericolosità sismica a scala nazionale
Beschreibung:
N/A or not JCR
Beschreibung:
restricted
Schlagwort(e):
GPU
;
CUDA
;
synthetic seismogram
;
04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous
;
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
;
04. Solid Earth::04.06. Seismology::04.06.04. Ground motion
;
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
article
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