Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program

1996/07/31 by P. H. Hauschildt, Peter H. Hauschildt, E. Baron +2 · 7 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astronomy and Astrophysical Research #Atmospheric Ozone and Climate #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1086/304233

To appear in ApJ, 1997, vol 483. LaTeX, 34 pages, 3 Figures, uses AASTeX macros and styles natbib.sty, and psfig.sty

arxiv created 1997/01/21 · openalex publication_date 1997/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

We describe the parallel implementation of our generalized stellar atmosphere and non-LTE (NLTE) radiative transfer computer program PHOENIX. We discuss the parallel algorithms we have developed for radiative transfer, spectral line opacity, and NLTE opacity and rate calculations. Our implementation uses a multiple instruction-multiple data design based on a relatively small number of MPI library calls. We report the results of test calculations on a number of different parallel computers and discuss the results of scalability tests.

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