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DIAPHANE : A portable radiation transport library for astrophysical applications


Reed, Darren S; Dykes, Tim; Cabezón, Rubén; Gheller, Claudio; Mayer, Lucio (2018). DIAPHANE : A portable radiation transport library for astrophysical applications. Computer Physics Communications, 226:1-9.

Abstract

One of the most computationally demanding aspects of the hydrodynamical modelingof Astrophysical phenomena is the transport of energy by radiation or relativistic particles. Physical processes involving energy transport are ubiquitous and of capital importance in many scenarios ranging from planet formation to cosmic structure evolution, including explosive events like core collapse supernova or gamma-ray bursts. Moreover, the ability to model and hence understand these processes has often been limited by the approximations and incompleteness in the treatment of radiation and relativistic particles. The diaphane project has focused on developing a portable and scalable library that handles the transport of radiation and particles (in particular neutrinos) independently of the underlying hydrodynamic code. In this work, we present the computational framework and the functionalities of the first version of the diaphane library, which has been successfully ported to three different smoothed-particle hydrodynamic codes, gadget2, gasoline and sphynx. We also present validation of different modules solving the equations of radiation and neutrino transport using different numerical schemes.

Abstract

One of the most computationally demanding aspects of the hydrodynamical modelingof Astrophysical phenomena is the transport of energy by radiation or relativistic particles. Physical processes involving energy transport are ubiquitous and of capital importance in many scenarios ranging from planet formation to cosmic structure evolution, including explosive events like core collapse supernova or gamma-ray bursts. Moreover, the ability to model and hence understand these processes has often been limited by the approximations and incompleteness in the treatment of radiation and relativistic particles. The diaphane project has focused on developing a portable and scalable library that handles the transport of radiation and particles (in particular neutrinos) independently of the underlying hydrodynamic code. In this work, we present the computational framework and the functionalities of the first version of the diaphane library, which has been successfully ported to three different smoothed-particle hydrodynamic codes, gadget2, gasoline and sphynx. We also present validation of different modules solving the equations of radiation and neutrino transport using different numerical schemes.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Uncontrolled Keywords:Hardware and Architecture, General Physics and Astronomy
Language:English
Date:1 May 2018
Deposited On:06 Mar 2019 16:14
Last Modified:17 Sep 2019 20:09
Publisher:Elsevier
ISSN:0010-4655
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.cpc.2017.11.009
Project Information:
  • : FunderFP7
  • : Grant ID321263
  • : Project TitleFISH - FaInt Supernovae and Hypernovae: Mechanism and Nucleosynthesis

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