Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program

Details Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program

1996-07-17

arxiv.org/abs/astro-ph/9607087v2

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1086/304233

We describe the parallel implementation of our generalized stellar atmosphere and 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 MIMD 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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