Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2010-05-21
AIP Conference Proceedings , 2010, 1241, pages 816-825
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
Accepted and Published in AIP Conference Proceedings 1241, 2010, pages 816-825
Scientific paper
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.
Blaizot Jérémy
Caron Eddy
Courtois Helene M.
Depardon Benjamin
Desprez Frédéric
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