Paper Info
Title
Computational performance of ultra-high-resolution capability in the Community Earth System Model
Abstract
With the fourth release of the Community Climate System Model, the ability to perform ultra-high-resolution climate simulations is now possible, enabling eddy-resolving ocean and sea-ice models to be coupled to a finite-volume atmosphere model for a range of atmospheric resolutions. This capability was made possible by enabling the model to use large scale parallelism, which required a significant refactoring of the software infrastructure. We describe the scalability of two ultra-high-resolution coupled configurations on leadership class computing platforms. We demonstrate the ability to utilize over 30,000 processor cores on a Cray XT5 system and over 60,000 cores on an IBM Blue Gene/P system to obtain climatologically relevant simulation rates for these configurations.
Year
DOI
Venue
2012
10.1177/1094342012436965
IJHPCA
Keywords
Field
DocType
sea-ice model,ibm blue gene,atmospheric resolution,computational performance,community climate,p system,climatologically relevant simulation rate,cray xt5 system,ultra-high-resolution capability,ultra-high-resolution climate simulation,community earth system model,finite-volume atmosphere model,system model,sea ice,system modeling,community climate system model,climate model,high resolution,atmospheric modeling,finite volume
Climate model,Computer science,Atmospheric model,Software,Community Climate System Model,Cray XT5,Code refactoring,Multi-core processor,Distributed computing,Scalability
Journal
Volume
Issue
ISSN
26
1
1094-3420
Citations 
PageRank 
References 
22
1.38
14
Authors
7
Name
Order
Citations
PageRank
John M. Dennis124139.70
Mariana Vertenstein2847.17
Patrick H. Worley3488101.02
Arthur A. Mirin413015.38
Anthony P. Craig5746.10
Robert Jacob6705.64
Sheri Mickelson7222.06