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Cosmological Simulations on a Grid of Computers
- Source :
- [Research Report] RR-7093, Inria. 2009, pp.15, Conference of the Invisible Universe, Conference of the Invisible Universe, Jun 2009, Paris, France. pp.816-825, ⟨10.1063/1.3462722⟩, Hyper Article en Ligne, OpenAIRE, HAL-ENS-LYON, INRIA a CCSD electronic archive server, arXiv.org e-Print Archive
- Publication Year :
- 2010
-
Abstract
- The work presented in this paper aims at restricting the input parameter values of the semi-analytical model used in GALICS and MOMAF, so as to derive which parameters influence the most the results, e.g., star formation, feedback and halo recycling efficiencies, etc. Our approach is to proceed empirically: we run lots of simulations and derive the correct ranges of values. The computation time needed is so large, that we need to run on a grid of computers. Hence, we model GALICS and MOMAF execution time and output files size, and run the simulation using a grid middleware: DIET. All the complexity of accessing resources, scheduling simulations and managing data is harnessed by DIET and hidden behind a web portal accessible to the users.<br />Accepted and Published in AIP Conference Proceedings 1241, 2010, pages 816-825
- Subjects :
- FOS: Computer and information sciences
Parallel computing
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Computer science
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Computation
Distributed computing
FOS: Physical sciences
Grid-RPC
02 engineering and technology
Sky surveys
01 natural sciences
Execution time
Scheduling (computing)
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Databases
[ INFO.INFO-DC ] Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC]
Data acquisition
Universe
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
N-body simulations
Instrumentation and Methods for Astrophysics (astro-ph.IM)
010303 astronomy & astrophysics
Local uni- verse
Middleware
020203 distributed computing
Grid middleware
Archives
Atlases
Astronomical catalogues
Grid
Cosmology
Astronomical catalogs
Retrieval systems
Computer Science - Distributed, Parallel, and Cluster Computing
Distributed, Parallel, and Cluster Computing (cs.DC)
Origin and formation of the Universe
Particle-theory and field-theory models of the early Universe
[INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC]
Astrophysics - Instrumentation and Methods for Astrophysics
Data acquisition: hardware and software
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- [Research Report] RR-7093, Inria. 2009, pp.15, Conference of the Invisible Universe, Conference of the Invisible Universe, Jun 2009, Paris, France. pp.816-825, ⟨10.1063/1.3462722⟩, Hyper Article en Ligne, OpenAIRE, HAL-ENS-LYON, INRIA a CCSD electronic archive server, arXiv.org e-Print Archive
- Accession number :
- edsair.doi.dedup.....8d45dee47905384486ba3ed609bc20e9