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Parallel Computation of the Regional Ocean Modeling System

Ping Wang, Y. Tony Song, Yi Chao, Hongchun Zhang
2005 The international journal of high performance computing applications  
The Regional Ocean Modeling System (ROMS) is a regional ocean general circulation modeling system solving the free surface, hydrostatic, primitive equations over varying topography.  ...  run on any parallel computer ranging from 10 to hundreds of processors.  ...  for solving algebraic systems, and the Arbitrary Lagrangian-Eulerian (ALE) method for hydrodynamics with the efficiency of Adaptive Mesh Refinement (AMR).  ... 
doi:10.1177/1094342005059115 fatcat:wrmb2fncsvdkver3jxzhg4jb6q

"Zen" and the art of petascale ocean modeling

Chris Hill, Larry Rudolph
2008 Proceedings of the 2nd workshop on System-level virtualization for high performance computing - HPCVirt '08  
To illustrate the challenge we examine an ocean model deployed on a recently commissioned ≈60,000 core parallel system.  ...  The motivation for this analysis is a quest for ways to engage a broader spectrum of expertise in state-of-the-art petascale modeling activities.  ...  This information provides a "virtual" representation of the regions outside of the computation region.  ... 
doi:10.1145/1435452.1435457 fatcat:5ssxlnzwtfdcvgea4dd6oa37rq

The Navy Ocean Modeling and Prediction Program— From Research to Operations: An Overview

Robert Peloquin
1992 Oceanography  
Commanding Officer of FNOC, and C. Hoffman, Director of the Environmental Systems Program Office at the Space and Warfare Systems Command. We owe thanks to Captain J.  ...  The Institute for Naval Oceanography continues to provide needed support leading to the development of an operational ocean forecast capability.  ...  The Northwest Atlantic has been selected as the test region for a number of forecast systems, i.e., integrated ocean-prediction and dataassimilation models.  ... 
doi:10.5670/oceanog.1992.25 fatcat:u3athbcpwnd2foks44zk35d6eq

Simulated circulation in the Indonesian archipelago from a high resolution global ocean general circulation model on the numerical wind tunnel

Yukio Masumoto, Takashi Kagimoto, Toshio Yamagata, Masahiro Yoshida, Masahiro Fukuda, Naoki Hirose
1999 Proceedings of the 1999 ACM/IEEE conference on Supercomputing (CDROM) - Supercomputing '99  
Recent progress in parallel computing techniques together with the high ability of computer itself makes it possible to use such a high resolution OGCM for climate variability issues.  ...  To represent both the basin-scale circulation in the ocean and the local small-scale variations at the same time, a high resolution global ocean general circulation model (OGCM) is essential.  ...  Acknowledgments We are grateful to the system engineers at the National Aerospace Laboratory for their kind assistance on the computational problems, and to Miss Aiko Fujimura for analyses of the data  ... 
doi:10.1145/331532.331567 dblp:conf/sc/MasumotoKYYFH99 fatcat:rd6q2t5lirdo7hiiga76wkygsu

Toward an ultra-high resolution community climate system model for the BlueGene platform

John M Dennis, Robert Jacob, Mariana Vertenstein, Tony Craig, Raymond Loy
2007 Journal of Physics, Conference Series  
The ability to simulate high resolutions on the massively parallel petascale systems that will dominate high-performance computing for the foreseeable future is essential to the advancement of climate  ...  We describe the scalability of five models: the Parallel Ocean Program (POP), the Community Ice CodE (CICE), the Community Land Model (CLM), and the new CCSM sequential coupler (CPL7) which are components  ...  This is particularly important in the ocean where small scale features called "oceanic eddies" play an important role in the heat transport of the ocean and thus of the climate system.  ... 
doi:10.1088/1742-6596/78/1/012030 fatcat:lr37ir3mjzcgppjeocueocu3se

Development of a probabilistic ocean modelling system based on NEMO 3.5: application at eddying resolution

Laurent Bessières, Stéphanie Leroux, Jean-Michel Brankart, Jean-Marc Molines, Marie-Pierre Moine, Pierre-Antoine Bouttier, Thierry Penduff, Laurent Terray, Bernard Barnier, Guillaume Sérazin
2017 Geoscientific Model Development  
</strong> This paper presents the technical implementation of a new, probabilistic version of the NEMO ocean–sea-ice modelling system.  ...  An example application is then given to illustrate the implementation, performances, and potential use of this novel probabilistic modelling tool.  ...  This work also benefited from many interactions with the DRAKKAR ocean-modelling consortium, with the SANGOMA and CHAOCEAN projects.  ... 
doi:10.5194/gmd-10-1091-2017 fatcat:eaone2r24bc3vcqcjwoiwkc7dq

Development of a probabilistic ocean modelling system based on NEMO 3.5: application at eddying resolution

Laurent Bessières, Stéphanie Leroux, Jean-Michel Brankart, Jean-Marc Molines, Marie-Pierre Moine, Pierre-Antoine Bouttier, Thierry Penduff, Laurent Terray, Bernard Barnier, Guillaume Sérazin
2016 Geoscientific Model Development Discussions  
This paper presents the technical implementation of a new, probabilistic version of the NEMO ocean/sea-ice modelling system.  ...  An example application is then given to illustrate the implementation, performances and potential use of this novel probabilistic modelling tool.  ...  This work also benefited from many interactions with the DRAKKAR ocean-modelling consortium, with the SANGOMA and CHAOCEAN projects.  ... 
doi:10.5194/gmd-2016-174 fatcat:deueobcchzhltgp7hfqajasdse

Challenge toward the prediction of typhoon behaviour and down pour

K Takahashi, R Onishi, Y Baba, S Kida, K Matsuda, K Goto, H Fuchigami
2013 Journal of Physics, Conference Series  
Multi-scale Simulator for the Geoenvironment (MSSG), which deals with multi-scale multi-physics phenomena, is a coupled non-hydrostatic atmosphere-ocean model designed to be run efficiently on the Earth  ...  To gain high performance by exploiting the system capabilities, we propose novel performance evaluation metrics introduced in previous studies that incorporate the effects of the data caching mechanism  ...  As another option, multiple regions are allowed to be selected at the same time and computed in parallel.  ... 
doi:10.1088/1742-6596/454/1/012072 fatcat:rmpdhiliozcubdndcnyt6krdfq

Convergence and performance aspects of physics-dynamics coupling in US-Department of Energy research [article]

Dorothy Koch
2018 Figshare  
Convergence and performanceaspects of physics-dynamicscoupling in US-Department ofEnergy research  ...  Address multitude of serial, single column model runs by using a multi-GPU computing system Early Tasks • Profile and scope utilizing SCM on multiple accelerator computing systems, target Summit  ...  Ocean: Time-stepping for variable-resolution grids, cont'd LTS-Results: Shallow water equations (SWTC5) Coarse cell area is approximately four times of the fine cell area (the circular region) Bottom  ... 
doi:10.6084/m9.figshare.7111772.v1 fatcat:etwmuujtqbglxapz77dev5yz5u

Coupling of the regional climate model COSMO-CLM using OASIS3-MCT with regional ocean, land surface or global atmosphere model: description and performance

Stefan Weiher, Naveed Akhtar, Jennifer Brauch, Marcus Breil, Edouard Davin, Ha T. M. Ho-Hagemann, Eric Maisonnave, Markus Thürkow, Andreas Will
2016 Geoscientific Model Development Discussions  
We present the prototype of a regional climate system model based on the COSMO-CLM regional climate model coupled with several model components, analyze the performance of the couplings and present a strategy  ...  <br><br> The OASIS3-MCT coupler is used to couple COSMO-CLM with two land surface models (CLM and VEG3D), a regional ocean model for the Mediterranean Sea (NEMO-MED12), two ocean models for the North and  ...  model of KIT NEMO Community model 'Nucleus for European Modelling of the Ocean' TRIMNP Tidal, Residual, Intertidal mudflat Model Nested parallel Processing regional ocean model CICE Sea ice model of LANL  ... 
doi:10.5194/gmd-2016-47 fatcat:dc3pgxwxebdzhdqe2grgs3qjb4

Enhancing regional ocean modeling simulation performance with the Xeon Phi architecture

Chris Lupo, Maria Pantoja, Paul Choboter
2017 OCEANS 2017 - Aberdeen  
This paper presents a detailed exploration of the acceleration of the Regional Ocean Model System (ROMS) software with the latest Intel Xeon Phi x200 architectures.  ...  Ocean modeling is complex and computationally intensive, and improving the performance of these models will greatly advance and improve the work of ocean scientists.  ...  INTRODUCTION The Regional Ocean Modeling System (ROMS) is an opensource, free-surface, primitive equation ocean model used by the scientifc community for a diverse range of applications [1] .  ... 
doi:10.1109/oceanse.2017.8084988 fatcat:3fwwdd2lhzanxaw5lwlz4repy4

Prospects for improving the representation of coastal and shelf seas in global ocean models

Jason Holt, Patrick Hyder, Mike Ashworth, James Harle, Helene T. Hewitt, Hedong Liu, Adrian L. New, Stephen Pickles, Andrew Porter, Ekaterina Popova, J. Icarus Allen, John Siddorn (+1 others)
2017 Geoscientific Model Development  
</strong> Accurately representing coastal and shelf seas in global ocean models represents one of the grand challenges of Earth system science.  ...  We put this analysis in the context of evolving computer systems, discussing model turnaround time, scalability and resource costs.  ...  Introduction Improving the representation of coastal and shelf seas in global models is one of the grand challenges in ocean modelling and Earth System science.  ... 
doi:10.5194/gmd-10-499-2017 fatcat:th6mivbtcrhozotbw7isgdqouq

Development of Coupled Modeling System for Regional Water Cycle and Material Transport in the Atmospheric, Terrestrial, and Oceanic Environment

Haruyasu NAGAI, Takuya KOBAYASHI, Katsunori TSUDUKI, Hiroaki TERADA
2011 Progress in Nuclear Science and Technology  
In these coupled models, calculations of component models are carried out by different processors of parallel computers in the same manner as their original stand-alone calculations and the coupler controls  ...  model (RIVERS) developed by JAEA, the third-generation ocean wind-wave model of NOAA (WW3), and the Princeton Ocean Model (POM).  ...  Acknowledgment Test calculations in this study used a scalar-parallel computer SGI-Altix3700Bx2 operated by the Center for Computational Science & e-System of JAEA to execute the coupled water cycle model  ... 
doi:10.15669/pnst.2.556 fatcat:v7lpuokd5rhfbic5wxblkujpjm

Prospects for improving the representation of coastal and shelf seas in global ocean models

Jason Holt, Pat Hyder, Mike Ashworth, James Harle, Helene T. Hewitt, Hedong Liu, Adrian L. New, Stephen Pickles, Ekaterina Popova, J. Icarus Allen, John Siddorn, Richard Wood
2016 Geoscientific Model Development Discussions  
Accurately representing coastal and shelf seas in global ocean models represents one of the grand challenges of Earth System science.  ...  However, they are poorly represented in the current generation of global ocean models.  ...  Introduction Improving the representation of coastal and shelf seas in global models is one of the grand challenges in ocean modelling and Earth System science.  ... 
doi:10.5194/gmd-2016-145 fatcat:hqbx6l2qrbhqdoq6lwlyjyodea

A New Approach for Coupled Regional Climate Modeling Using More than 10,000 Cores [chapter]

Marcus Thatcher, John McGregor, Martin Dix, Jack Katzfey
2015 IFIP Advances in Information and Communication Technology  
We have constructed a prototype of a reversibly staggered, atmosphere-ocean coupled regional climate model based on the Conformal Cubic Atmospheric Model, which employs a global variable resolution cube-based  ...  The approach is based on the reversibly staggered grid, which possesses excellent dispersive properties for modeling the geophysical fluid dynamics of both the atmosphere and the ocean.  ...  The authors wish to thank Pawsey Centre's Petascale Pioneer program for providing computing resources for the simulations described in this paper.  ... 
doi:10.1007/978-3-319-15994-2_61 fatcat:6gzt6rfrtfd4vhcbgte7uhwcbu
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