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PSDF: Particle Stream Data Format for N-body simulations |
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| Authors: | Will M Farr Jeff AmesPiet Hut Junichiro MakinoSteve McMillan Takayuki MuranushiKoichi Nakamura Keigo NitadoriSimon Portegies Zwart |
| Institution: | a Northwestern University Center for Interdisciplinary Research in Astrophysics, 2145 Sheridan Rd., Evanston, IL 60208, USA b Institute for Advanced Study, Princeton, NJ 08540, USA c Interactive Research Center of Science, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8551, Japan d Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA e The Hakubi Center, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan f Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan g Center for Computational Science, University of Tsukuba, 111 Tennodai, Tsukuba, Ibaraki 305-8577, Japan h Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands |
| Abstract: | We present a data format for the output of general N-body simulations, allowing the presence of individual time steps. By specifying a standard, different N-body integrators and different visualization and analysis programs can all share the simulation data, independent of the type of programs used to produce the data. Our Particle Stream Data Format, PSDF, is specified in YAML, based on the same approach as XML but with a simpler syntax. Together with a specification of PSDF, we provide background and motivation, as well as specific examples in a variety of computer languages. We also offer a web site from which these examples can be retrieved, in order to make it easy to augment existing codes in order to give them the option to produce PSDF output. |
| Keywords: | Stellar dynamics Method: N-body simulation |
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