Articles | Volume 15, issue 18
Development and technical paper
16 Sep 2022
Development and technical paper |  | 16 Sep 2022

The ICON-A model for direct QBO simulations on GPUs (version icon-cscs:baf28a514)

Marco A. Giorgetta, William Sawyer, Xavier Lapillonne, Panagiotis Adamidis, Dmitry Alexeev, Valentin Clément, Remo Dietlicher, Jan Frederik Engels, Monika Esch, Henning Franke, Claudia Frauen, Walter M. Hannah, Benjamin R. Hillman, Luis Kornblueh, Philippe Marti, Matthew R. Norman, Robert Pincus, Sebastian Rast, Daniel Reinert, Reiner Schnur, Uwe Schulzweida, and Bjorn Stevens


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-152', Anonymous Referee #1, 27 May 2022
    • AC1: 'Reply on RC1', Marco Giorgetta, 07 Jul 2022
  • RC2: 'Comment on egusphere-2022-152', Italo Epicoco, 13 Jul 2022
    • AC2: 'Reply on RC2', Marco Giorgetta, 20 Jul 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Marco Giorgetta on behalf of the Authors (09 Aug 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (26 Aug 2022) by Sophie Valcke
AR by Marco Giorgetta on behalf of the Authors (26 Aug 2022)  Author's response   Manuscript 
Short summary
This work presents a first version of the ICON atmosphere model that works not only on CPUs, but also on GPUs. This GPU-enabled ICON version is benchmarked on two GPU machines and a CPU machine. While the weak scaling is very good on CPUs and GPUs, the strong scaling is poor on GPUs. But the high performance of GPU machines allowed for first simulations of a short period of the quasi-biennial oscillation at very high resolution with explicit convection and gravity wave forcing.