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DTSTART;TZID=Europe/Stockholm:20240604T095500
DTEND;TZID=Europe/Stockholm:20240604T095500
UID:submissions.pasc-conference.org_PASC24_sess158_pos121@linklings.com
SUMMARY:P40 - A Performance-Portable All-Scale Atmospheric Model Framework
DESCRIPTION:Poster\n\nNicolai Krieger (ETH Zurich), Christian Kühnlein (EC
 MWF), Stefano Ubbiali (ETH Zurich), Till Ehrengruber (ETH Zurich / CSCS), 
 Lukas Papritz and Sara Faghih-Naini (ECMWF), Gabriel Vollenweider (ETH Zur
 ich), Loïc Maurin (Meteo-France), and Heini Wernli (ETH Zurich)\n\nWe prov
 ide an overview of activities and results in the development of a performa
 nce-portable atmospheric model for research applications and numerical wea
 ther prediction. The model framework considers a full Python implementatio
 n with the GT4Py (GridTools for Python) domain-specific library encompassi
 ng the non-hydrostatic finite-volume dynamical core and tightly coupled ph
 ysical process parametrizations. GT4Py is employed with 3D structured grid
 s for regional domains and with horizontally unstructured meshes for globa
 l domains. We highlight selected numerical, software and high-performance 
 aspects of the model, and address the porting of physical parametrizations
 . Furthermore, we present results from performance and scalability testing
  across different GPU based supercomputers, basic model validation, and ex
 citing high-resolution applications in Alpine terrain using the developed 
 moist large-eddy simulation configuration.\n\nSession Chair: Iva Kavcic (M
 et Office)
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