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| Titel |
Cyberdyn supercomputer - a tool for imaging geodinamic processes |
| VerfasserIn |
Mihai Pomeran, Vlad Manea, Lucian Besutiu, Luminita Zlagnean |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250088690
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| Publikation (Nr.) |
 EGU/EGU2014-2827.pdf |
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| Zusammenfassung |
| More and more physical processes developed within the deep interior of our planet, but with
significant impact on the Earth’s shape and structure, become subject to numerical modelling
by using high performance computing facilities. Nowadays, worldwide an increasing number
of research centers decide to make use of such powerful and fast computers for simulating
complex phenomena involving fluid dynamics and get deeper insight to intricate problems of
Earth’s evolution.
With the CYBERDYN cybernetic infrastructure (CCI), the Solid Earth Dynamics Department
in the Institute of Geodynamics of the Romanian Academy boldly steps into the
21st century by entering the research area of computational geodynamics. The
project that made possible this advancement, has been jointly supported by EU and
Romanian Government through the Structural and Cohesion Funds. It lasted for about
three years, ending October 2013. CCI is basically a modern high performance
Beowulf-type supercomputer (HPCC), combined with a high performance visualization
cluster (HPVC) and a GeoWall. The infrastructure is mainly structured around
1344 cores and 3 TB of RAM. The high speed interconnect is provided by a Qlogic
InfiniBand switch, able to transfer up to 40 Gbps. The CCI storage component is a
40 TB Panasas NAS. The operating system is Linux (CentOS). For control and
maintenance, the Bright Cluster Manager package is used. The SGE job scheduler manages
the job queues. CCI has been designed for a theoretical peak performance up to
11.2 TFlops. Speed tests showed that a high resolution numerical model (256 x
256 x 128 FEM elements) could be resolved with a mean computational speed of
1 time step at 30 seconds, by employing only a fraction of the computing power
(20%).
After passing the mandatory tests, the CCI has been involved in numerical modelling of
various scenarios related to the East Carpathians tectonic and geodynamic evolution,
including the Neogene magmatic activity, and the intriguing intermediate-depth seismicity
within the so-called Vrancea zone. The CFD code for numerical modelling is CitcomS, a
widely employed open source package specifically developed for earth sciences. Several
preliminary 3D geodynamic models for simulating an assumed subduction or the effect of a
mantle plume will be presented and discussed. |
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