S. Valcke (1)
P. Pellerin (2), M. Valin (2), D. Bouhemhem (2), M. Faucher (3)
S. Desjardins (2)
(1): Centre Européen de Recherche et de Formation Avancée en Calcul
Scientifique - CERFACS
(2): Recherche en Prévisions Numériques, Services Météorologiques
Canadiens (RPN-SMC)
(3): Centre Météorologique Canadien, Services Météorologiques
Canadiens (CMC-SMC)
The new unified OASIS3-GOSSIP2 coupler is a software allowing
synchronized exchanges of coupling information between independent
numerical models of the Earth system components.
OASIS3 is a coupler widely used in the European climate modelling
community, particularly in the framework of the PRISM initiative, and
by different other climate modelling groups around the world. OASIS3
is developed by CERFACS (Toulouse) since more than 10 years and was
recently upgraded within the PRISM project. GOSSIP2 is the new version
of the communication layer developed at RPN based on UNIX
sockets. Particular advantages of GOSSIP2 are its simplicity, its
portability, and its direct support of distributed computing. OASIS3
and GOSSIP2 have been merged in a recent CERFACS-SMC collaboration
started this year.
OASIS3-GOSSIP2 is currently being used at RPN and CMC to assemble a
coupled model based on the Institut Maurice Lamontagne ocean model and
on the atmospheric model GEM. It is also planned to use it to
externally couple GEM to the land surface schemes ISBA/CLASS, thereby
giving the flexibility to easily change ISBA/CLASS resolution.
During this seminar, the PRISM project, the new unified OASIS3-GOSSIP2
coupler and its first applications will be presented.