Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-04-06
Computer Physics Communications, Volume 174, Issue 12, 15 June 2006, Pages 983-1004
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
24 pages, 1 figure. Corresponds to journal version
Scientific paper
10.1016/j.cpc.2006.02.002
We present a suite of Mathematica-based computer-algebra packages, termed "Kranc", which comprise a toolbox to convert (tensorial) systems of partial differential evolution equations to parallelized C or Fortran code. Kranc can be used as a "rapid prototyping" system for physicists or mathematicians handling very complicated systems of partial differential equations, but through integration into the Cactus computational toolkit we can also produce efficient parallelized production codes. Our work is motivated by the field of numerical relativity, where Kranc is used as a research tool by the authors. In this paper we describe the design and implementation of both the Mathematica packages and the resulting code, we discuss some example applications, and provide results on the performance of an example numerical code for the Einstein equations.
Hinder Ian
Husa Sascha
Lechner Christiane
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