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DTSTART;TZID=America/Denver:20231115T103000
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UID:submissions.supercomputing.org_SC23_sess298_gbv102@linklings.com
SUMMARY:The Simple Cloud-Resolving E3SM Atmosphere Model Running on the Fr
 ontier Exascale System
DESCRIPTION:Mark Taylor (Sandia National Laboratories); Peter M. Caldwell 
 (Lawrence Livermore National Laboratory (LLNL)); Luca Bertagna and Conrad 
 Clevenger (Sandia National Laboratories); Aaron S. Donahue (Lawrence Liver
 more National Laboratory (LLNL)); James G. Foucar, Oksana Guba, and Benjam
 in R. Hillman (Sandia National Laboratories); Noel Keen (Lawrence Berkeley
  National Laboratory (LBNL)); Jayesh Krishna (Argonne National Laboratory 
 (ANL)); Matthew R. Norman and Sarat Sreepathi (Oak Ridge National Laborato
 ry (ORNL)); Christopher R. Terai (Lawrence Livermore National Laboratory (
 LLNL)); James B. White III (Hewlett Packard Enterprise (HPE)); Danqing Wu 
 (Argonne National Laboratory (ANL)); Andrew G. Salinger (Sandia National L
 aboratories); Renata B. McCoy (Lawrence Livermore National Laboratory (LLN
 L)); L. Ruby Leung (Pacific Northwest National Laboratory (PNNL)); and Dav
 id C. Bader (Lawrence Livermore National Laboratory (LLNL))\n\nWe present 
 an efficient and performance portable implementation of the Simple Cloud R
 esolving E3SM Atmosphere Model (SCREAM). SCREAM is a full featured atmosph
 eric global circulation model with a nonhydrostatic dynamical core and sta
 te-of-the-art parameterizations for microphysics, moist turbulence and rad
 iation. It has been written from scratch in C++ with the Kokkos library us
 ed to abstract the on-node execution model for both CPUs and GPUs. SCREAM 
 is one of only a few global atmosphere models to be ported to GPUs. As far
  as we know, SCREAM is the first such model to run on both AMD GPUs and NV
 IDIA GPUs, as well as the first to run on nearly an entire exascale system
  (Frontier). On Frontier, we obtained a record setting performance of 1.26
  simulated years per day for a realistic cloud resolving simulation.\n\nRe
 gistration Category: Tech Program Reg Pass\n\nSession Chair: John Taylor (
 Commonwealth Scientific and Industrial Research Organisation (CSIRO), Aust
 ralia)\n\n
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