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POWDERDAY: Dust Radiative Transfer for Galaxy Simulations

  • Authors: Desika Narayanan, Matthew J. Turk, Thomas Robitaille, Ashley J. Kelly, B. Connor McClellan, Ray S Sharma, Prerak Garg, Matthew Abruzzo, Ena Choi, Charlie Conroy, Benjamin D. Johnson, Benjamin Kimock, Qi Li, Christopher C. Lovell, Sidney Lower, George C. Privon, Jonathan Roberts, Snigdaa Sethuram, Gregory F. Snyder, Robert Thompson, and John H. Wise

2021 The Astrophysical Journal Supplement Series 252 12.

  • Provider: AAS Journals

Caption: Figure 6.

Scaling tests for POWDERDAY presented as wall clock time as a function of the number of cores for problems of increasing difficulty (parameterized by the total number of photons emitted). POWDERDAY generally shows strong scalability, though, at low photon-count (i.e., easy) problems, the fixed overhead costs in the preradiative transfer stage can drive some inefficiencies.

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