Accelerating tracer transport in FESOM-2 with GPU's

Autor: Gijs van den Oord, David Guibert, Alessio Sclocco, Erwan Raffin, Ben van Werkhoven, Natalya Rakowski, Nicolay Koldunov, Dmitry Sidorenko

Within the ESiWACE-2 service on porting applications to pre-exascale machines, we have collaborated with theFESOM-2 team to accelerate parts of their model on GPU's.FESOM-2 is a finite-volume ocean and sea-ice model based on unstructured meshes. We h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3637e5cf4e3395cb8d87e268e3a10a6f

Improving ocean modeling software NEMO 4.0 benchmarking and communication efficiency

Autor: Gaston Irrmann, Sébastien Masson, Éric Maisonnave, David Guibert, Erwan Raffin

Publikováno v: Geoscientific Model Development
Geoscientific Model Development, 2022, 15, pp.1567-1582. ⟨10.5194/gmd-15-1567-2022⟩

Communications in distributed memory supercomputers are still limiting scalability of geophysical models. Considering the recent trends of the semiconductor industry, we think this problem is here to stay. We present the optimizations that have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e5e5fa1c8f5208924e87e5c2967e9f3
https://hal-insu.archives-ouvertes.fr/insu-03665079/file/gmd-15-1567-2022.pdf

GPU acceleration of the FESOM-2 ocean and sea-ice model

Autor: Ben van Werkhoven, Erwan Raffin, Gijs van den Oord, Natalja Rakowski, Dmitry Sidorenko, David Guibert, Alessio Sclocco, Nikolay Koldunov, Georges-Emmanuel Moulard

FESOM-2 is a finite volume ocean circulation and sea ice model developed by the Alfred Wegener Institute (AWI). It solves the primitive equations using the hydrostatic and Bousinessq approximations on an unstructured grid, allowing seamless mesh reso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b404ffea9d698d27371f710438387e9c
https://doi.org/10.5194/egusphere-egu21-11551

The ESCAPE project: Energy-efficient Scalable Algorithms for Weather Prediction at Exascale

Autor: Milosz Ciznicki, Bent Hansen Sass, Geert Smet, Sami Saarinen, Christian Kühnlein, Gianmarco Mengaldo, Valentin Clément, Xavier Vigouroux, Michal Kulczewski, Michael Glinton, Carlos Osuna, Nils Wedi, Willem Deconinck, Alan Gray, Mats Hamrud, Philippe Marguinaud, Pierre Bénard, Alexander J. Macfaden, Nick New, Parijat Shukla, David Guibert, Erwan Raffin, Bartosz Bosak, George Mozdzynski, Fabrice Voitus, Joanna Szmelter, Yongjun Zheng, Sarah-Jane Lock, Alastair McKinstry, Cyril Mazauric, Charles Colavolpe, Marcin Procyk, Per Berg, Louis Douriez, Michael Lysaght, Sebastian Ciesielski, Mike Gillard, Pawel Spychala, Michail Diamantakis, Michael Lange, Kristian Pagh Nielsen, Jacob Weismann Poulsen, Wojciech Piątek, Piotr K. Smolarkiewicz, Krzysztof Kurowski, Peter Messmer, Oisín Robinson, Daniel Thiemert, Oliver Fuhrer, Andreas Müller, Piet Termonia, Peter Bauer, Daan Degrauwe, Andrzej A. Wyszogrodzki, Joris van Bever, Enda O’Brien, Michael Baldauf, Zbigniew P. Piotrowski, Marek Błażewicz

Publikováno v: Geoscientific Model Development, Vol 12, Pp 4425-4441 (2019)
Geoscientific Model Development Discussions
GEOSCIENTIFIC MODEL DEVELOPMENT

In the simulation of complex multi-scale flows arising in weather and climate modelling, one of the biggest challenges is to satisfy strict service requirements in terms of time to solution and to satisfy budgetary constraints in terms of energy to s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83025fb17a365f9a6ac51515f1206d0b
https://doi.org/10.5194/gmd-2018-304

Parallel adaptive time domain decomposition for stiff systems of ODEs/DAEs

Autor: Damien Tromeur-Dervout, David Guibert

Publikováno v: Computers & Structures. 85:553-562

Time domain decompositions to solve ODEs/DAEs have been numerically investigated by introducing adaptivity in the definition of the refinement of the time grid, time domain splitting. We show that the parareal method [Lions J-L, Maday Y, Turinici G.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48b72d49c80f112ed2568de666b2d2e1
https://doi.org/10.1016/j.compstruc.2006.08.040