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      Simulating 3-D Stellar Hydrodynamics using PPM and PPB Multifluid Gas Dynamics on CPU and CPU+GPU Nodes

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          Abstract

          The special computational challenges of simulating 3-D hydrodynamics in deep stellar interiors are discussed, and numerical algorithmic responses described. Results of recent simulations carried out at scale on the NSF's Blue Waters machine at the University of Illinois are presented, with a special focus on the computational challenges they address. Prospects for future work using GPU-accelerated nodes such as those on the DoE's new Summit machine at Oak Ridge National Laboratory are described, with a focus on numerical algorithmic accommodations that we believe will be necessary.

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          Author and article information

          Journal
          31 October 2018
          Article
          1810.13416

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          Custom metadata
          14 pages, 7 figures
          astro-ph.SR physics.comp-ph physics.flu-dyn

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