Report

FZJ-2025-05375

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png natESM Sprint Documentation #10: QUINCY in ICON-Land Sprint

Sukov, S. (Corresponding author)FZJ* ; Engel, J. ; Nabel, J.Extern*

2025

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Please use a persistent id in citations: doi:10.34734/FZJ-2025-05375

Report No.: natESM Documentation 10

Abstract: The main aim of the sprint was the stepwise, model-mode based porting of the land surface model QUINCY code to GPUs, in line with the ICON OpenACC style and implementation guide. To achieve this goal, the ICON-Land Standalone Driver was first ported to GPUs, followed by running test cases where the Driver called existing GPU-implementations of JSBACH4 scientific processes. The most important practical outcome of the sprint was the preliminary porting of the QUINCY software modules used for simulations in CANOPY model-mode, in which only biogeophysical processes are enabled. This included setting up host-device data synchronization in the infrastructure subroutines, which are called before and after restart data file I/O, regardless of the model mode.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. BMFTR-01LK2107B1 - Nationale Modellierungsstrategie - ESM-Unterstützungsteam (natESM) (01LK2107B1) (01LK2107B1)

Appears in the scientific report 2025

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