Radiative transfer in decomposed domains |
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Axel Brandenburg Submitted: 2006-01-18 22:44
An efficient algorithm for calculating radiative transfer on massively parallel computers using domain decomposition is presented. The integral formulation of the transfer equation is used to divide the problem into a local but compute-intensive part for calculating the intensity and optical depth integrals, and a nonlocal part for communicating the intensity between adjacent processors. The waiting time of idle processors during the nonlocal communication part does not have a severe impact on the scaling. The wall clock time thus scales nearly linearly with the inverse number of processors.
Authors: T. Heinemann, W. Dobler, A. Nordlund, A. Brandenburg
Projects: None
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Publication Status: A&A (in press)
Last Modified: 2006-01-18 22:44
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