English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/45849
Título

Benefits and requirements of grid computing for climate applications. An example with the community atmospheric model

AutorFernández-Quiruelas, V.; Fernández, J.; Cofiño, A. S.; Fita, L.; Gutiérrez, José M.
Palabras claveGrid computing
Community Atmospheric Model (CAM)
El Niño
Sensitivity analysis
Workflow management
Fecha de publicaciónsep-2011
EditorElsevier
CitaciónEnvironmental Modelling and Software 26(9): 1057-1069 (2011)
ResumenGrid computing is nowadays an established technology in fields such as High Energy Physics and Biomedicine, offering an alternative to traditional HPC for several problems; however, it is still an emerging discipline for the climate community and only a few climate applications have been adapted to the Grid to solve particular problems. In this paper we present an up-to-date description of the advantages and limitations of the Grid for climate applications (in particular global circulation models), analyzing the requirements and the new challenges posed to the Grid. In particular, we focus on production-like problems such as sensitivity analysis or ensemble prediction, where a single model is run several times with different parameters, forcing and/or initial conditions. As an illustrative example, we consider the Community Atmospheric Model (CAM) and analyze the advantages and shortcomings of the Grid to perform a sensitivity study of precipitation with SST perturbations in El Niño area, reporting the results obtained with traditional (local cluster) and Grid infrastructures. We conclude that new specific middleware (execution workflow managers) is needed to meet the particular requirements of climate applications (long simulations, checkpointing, etc.). This requires the side-by-side collaboration of IT and climate groups to deploy fully ported applications, such as the CAM for Grid (CAM4G) introduced in this paper.
Descripción13 páginas, 8 figuras.-- El Pdf del artículo es la versión pre-print.
Versión del editorhttp://dx.doi.org/10.1016/j.envsoft.2011.03.006
URIhttp://hdl.handle.net/10261/45849
DOI10.1016/j.envsoft.2011.03.006
ISSN1364-8152
Aparece en las colecciones: (IFCA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
esgrid.pdf2,14 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.