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MHD Code Optimizations and Jets in Dense Gaseous Halos

In: High Performance Computing in Science and Engineering ’06

Author

Listed:
  • Volker Gaibler

    (Landessternwarte Königstuhl)

  • Matthias Vigelius

    (University of Melbourne, School of Physics)

  • Martin Krause

    (Astrophysics Group, Cavendish Laboratory)

  • Max Camenzind

    (Landessternwarte Königstuhl)

Abstract

Summary We have further optimized and extended the 3D-MHD-code NIRVANA. The magnetized part runs in parallel, reaching 19 Gflops per SX-6 node, and has a passively advected particle population. In addition, the code is MPI-parallel now — on top of the shared memory parallelization. On a 5123 grid, we reach 561 Gflops with 32 nodes on the SX-8. Also, we have successfully used FLASH on the Opteron cluster. Scientific results are preliminary so far.We report one computation of highly resolved cocoon turbulence. While we find some similarities to earlier 2D work by us and others, we note a strange reluctancy of cold material to enter the low density cocoon, which has to be investigated further.

Suggested Citation

  • Volker Gaibler & Matthias Vigelius & Martin Krause & Max Camenzind, 2007. "MHD Code Optimizations and Jets in Dense Gaseous Halos," Springer Books, in: Wolfgang E. Nagel & Willi Jäger & Michael Resch (ed.), High Performance Computing in Science and Engineering ’06, pages 35-48, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-36183-1_3
    DOI: 10.1007/978-3-540-36183-1_3
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