Terapixel Imaging of Cosmological Simulations

Yu Feng, Rupert A.C. Croft, Tiziana Di Matteo, Nishikanta Khandai, Randy Sargent, Illah Nourbakhsh, Paul S. Dille, Christopher Bartley, Volker Springel, Anirban Jana, and Jeffrey Gardner
July, 2011.


Download
  • Adobe portable document format (pdf) (5MB)
Copyright notice: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Abstract
The increasing size of cosmological simulations has led to the need for new visualization techniques. We focus on smoothed particle hydrodynamic (SPH) simulations run with the GADGET code and describe methods for visually accessing the entire simulation at full resolution. The simulation snapshots are rastered and processed on supercomputers into images that are ready to be accessed through a Web interface (GigaPan). This allows any scientist with a Web browser to interactively explore simulation data sets in both spatial and temporal dimensions and data sets which in their native format can be hundreds of terabytes in size or more. We present two examples, the first a static terapixel image of the MassiveBlack simulation, a P-GADGET SPH simulation with 65 billion particles, and the second an interactively zoomable animation of a different simulation with more than 1000 frames, each a gigapixel in size. Both are available for public access through the GigaPan Web interface. We also make our imaging software publicly available

Keywords
Cosmology: observations – large-scale structure of Universe

Notes

Text Reference
Yu Feng, Rupert A.C. Croft, Tiziana Di Matteo, Nishikanta Khandai, Randy Sargent, Illah Nourbakhsh, Paul S. Dille, Christopher Bartley, Volker Springel, Anirban Jana, and Jeffrey Gardner, "Terapixel Imaging of Cosmological Simulations," July, 2011.

BibTeX Reference
@inproceedings{Nourbakhsh_2011_7024,
   author = "Yu Feng and Rupert A.C. Croft and Tiziana Di Matteo and Nishikanta Khandai and Randy Sargent and Illah Nourbakhsh and Paul S Dille and Christopher Bartley and Volker Springel and Anirban Jana and Jeffrey Gardner",
   title = "Terapixel Imaging of Cosmological Simulations",
   booktitle = "",
   month = "July",
   year = "2011",
   number= "CMU-RI-TR-",
}