A Modern Astrophysical MHD Solver on CUDA-Capable GPUs

Details A Modern Astrophysical MHD Solver on CUDA-Capable GPUs A Modern Astrophysical MHD Solver on CUDA-Capable GPUs

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914517r&link_type=abstract

American Astronomical Society, AAS Meeting #219, #145.17

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Current numerical simulations employed by the astrophysics simulation community typically require long times to complete, particularly for three-dimensional regions. The recently developed CUDA extensions for C allow existing code to be modified to run on modern graphics cards in an efficient and parallelizeable manner. Graphics cards, particularly those developed for scientific computation, have significant speed advantages over CPUs for highly-parallelizeable applications such as magnetohydrodynamics grid solvers. Athena, a grid-based MHD code for astrophysics (Stone et al. 2008), is retooled to run on CUDA capability 2.0 or greater NVIDIA graphics cards, with effort taken to maximize performance. Performance benchmarks between graphics cards and CPUs are presented.

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