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  IllinoisGRMHD: An Open-Source, User-Friendly GRMHD Code for Dynamical Spacetimes

Etienne, Z. B., Paschalidis, V., Haas, R., Moesta, P., & Shapiro, S. L. (2015). IllinoisGRMHD: An Open-Source, User-Friendly GRMHD Code for Dynamical Spacetimes. Classical and quantum gravity, 32(17): 175009. doi:10.1088/0264-9381/32/17/175009.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0025-B8BE-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-9F04-1
Genre: Journal Article

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 Creators:
Etienne, Zachariah B., Author
Paschalidis, Vasileios, Author
Haas, Roland1, Author              
Moesta, Philipp, Author
Shapiro, Stuart L., Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,General Relativity and Quantum Cosmology, gr-qc
 Abstract: In the extreme violence of merger and mass accretion, compact objects like black holes and neutron stars are thought to launch some of the most luminous outbursts of electromagnetic and gravitational wave energy in the Universe. Modeling these systems realistically is a central problem in theoretical astrophysics, but has proven extremely challenging, requiring the development of numerical relativity codes that solve Einstein's equations for the spacetime, coupled to the equations of general relativistic (ideal) magnetohydrodynamics (GRMHD) for the magnetized fluids. Over the past decade, the Illinois Numerical Relativity (ILNR) Group's dynamical spacetime, GRMHD code has proven itself as one of the most robust and reliable tools for theoretical modeling of such GRMHD phenomena. Despite the code's outstanding reputation, it was written "by experts and for experts" of the code, with a steep learning curve that would severely hinder community adoption if it were open-sourced. Here we present IllinoisGRMHD, which is an open-source, highly-extensible rewrite of the original closed-source GRMHD code of the ILNR Group. Reducing the learning curve was the primary focus of this rewrite, facilitating community involvement in the code's use and development, as well as the minimization of human effort in generating new science. IllinoisGRMHD also saves computer time, generating roundoff-precision identical output to the original code on adaptive-mesh grids, but nearly twice as fast at scales of hundreds to thousands of cores.

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 Dates: 2015-01-282015
 Publication Status: Published in print
 Pages: 37 pages, 6 figures, single column
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1501.07276
DOI: 10.1088/0264-9381/32/17/175009
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 32 (17) Sequence Number: 175009 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: https://pure.mpg.de/cone/journals/resource/954925513480_1