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High-performance Shallow Water Model for Use on Massively Parallel and Heterogeneous Computing Systems

Andrey V. Chaplygin, Anatoly V. Gusev, Nikolay A. Diansky
2021 Supercomputing Frontiers and Innovations  
This paper presents the shallow water model, formulated from the ocean general circulation sigma model INMOM (Institute of Numerical Mathematics Ocean Model).  ...  We demonstrate that overlapping kernel execution with data transfers on GPUs increases performance by 28%.  ...  Acknowledgements The reported study was funded by RFBR, project number 20-31-90109.  ... 
doi:10.14529/jsfi210407 dblp:journals/superfri/ChaplyginGD21 fatcat:3fhuugsxyzb6xcbp3zyugzv4be

Computational Design and Performance of the Fast Ocean Atmosphere Model, Version One [chapter]

Robert Jacob, Chad Schafer, Ian Foster, Michael Tobis, John Anderson
2001 Lecture Notes in Computer Science  
FOAM is a distributed-memory parallel climate model consisting of parallel general circulation models of the atmosphere and ocean with complete physics paramaterizations as well as sea-ice, land surface  ...  Performance data for FOAM on the IBM SP3 and SGI Origin2000 demonstrates that it can simulate over thirty years per day on modest numbers of processors.  ...  The ocean component of FOAM, called OM3, is also a parallel model with a two-dimensional decomposition (Fig. 1b) . OM3 is a z-coordinate finite-difference model.  ... 
doi:10.1007/3-540-45545-0_26 fatcat:34cbbyn6f5h2hlr2rzluosqlw4

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  
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  ...  We have begun to investigate the scaling of the individual components of the Community Climate System Model to prepare it for integrations on BlueGene and similar platforms.  ...  For example, the initial CLM decomposition algorithm allocated large amounts of global memory. In some cases, the size increased with number of processors.  ... 
doi:10.1088/1742-6596/78/1/012030 fatcat:lr37ir3mjzcgppjeocueocu3se

Increasing Parallelism In Climate Models Via Additional Component Concurrency

Jörg Behrens, Joachim Biercamp, Hendryk Bockelmann, Philipp Neumann
2018 Zenodo  
In both the PalMod and the ESiWACE case the model throughput rate is limited by the scalability of the domain decomposition-based model parallelism.  ...  For example, simulations of the German climate modelling initiative PalMod aim at covering multi-millennial time scales and therefore use very moderate spatial resolutions which allow for large time steps  ...  In both the PalMod and the ESiWACE case the model throughput rate is limited by the scalability of the domain decomposition-based model parallelism.  ... 
doi:10.5281/zenodo.1478474 fatcat:ujuqhv7yvbda3ngneaoijq7uee

swNEMO_v4.0: an ocean model based on NEMO4 for the new-generation Sunway supercomputer

Yuejin Ye, Zhenya Song, Shengchang Zhou, Yao Liu, Qi Shu, Bingzhuo Wang, Weiguo Liu, Fangli Qiao, Lanning Wang
2022 Geoscientific Model Development  
The current large-scale parallel barrier of ocean general circulation models (OGCMs) makes it difficult to meet the computing demand of high resolution.  ...  of data.  ...  This work is supported by the National Natural Science Foundation of China (grant nos. 41821004, U1806205, 42022042), the Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science  ... 
doi:10.5194/gmd-15-5739-2022 fatcat:d27qzo3oe5h2xlh5f6i2m5vmf4

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  
In this paper, we present an efficient parallelization strategy for such a large-scale scientific software package, based on an existing shared-memory computing model.  ...  run on any parallel computer ranging from 10 to hundreds of processors.  ...  The SGI Origin 2000 is provided by the JPL Supercomputer Project, and the SGI Altix is provided by NASA Advanced Supercomputing Division. The authors wish to acknowledge Dr. Alexander F.  ... 
doi:10.1177/1094342005059115 fatcat:wrmb2fncsvdkver3jxzhg4jb6q

PARALLEL COMPUTING OF NUMERICAL SCHEMES AND BIG DATA ANALYTIC FOR SOLVING REAL LIFE APPLICATIONS

Norma Alias, Nadia Nofri Yeni Suhari, Hafizah Farhah Saipan Saipol, Abdullah Aysh Dahawi, Masyitah Mohd Saidi, Hazidatul Akma Hamlan, Che Rahim Che Teh
2016 Jurnal Teknologi  
The mathematical models for the big data analytic are based on partial differential equations and obtained the large sparse matrices from discretization and development of the linear equation system.  ...  Therefore, the parallel algorithm development is based on domain decomposition of problems and the architecture of difference parallel computing software.  ...  A theory of large-scale ocean circulation is applicable for ocean movement phenomena.  ... 
doi:10.11113/jt.v78.9552 fatcat:ibmfxjuu4vevhkxmgqrfcw6pqm

Optimisation of a parallel ocean general circulation model

M. I. Beare, D. P. Stevens
1997 Annales Geophysicae  
An initial implementation highlights that the parallel eciency of the model is adversely aected by a number of factors, for which optimisations are discussed and implemented.  ...  This paper presents the development of a general-purpose parallel ocean circulation model, for use on a wide range of computer platforms, from traditional scalar machines to workstation clusters and massively  ...  We would like to acknowledge the work of David Webb at Southampton Oceanography Centre towards MOMA, upon which this parallel model has been based.  ... 
doi:10.1007/s00585-997-1369-3 fatcat:omnz6b5f4zgetkmb6h2yh5ezuu

Optimisation of a parallel ocean general circulation model

M. I. Beare, D. P. Stevens
1997 Annales Geophysicae  
An initial implementation highlights that the parallel eciency of the model is adversely aected by a number of factors, for which optimisations are discussed and implemented.  ...  This paper presents the development of a general-purpose parallel ocean circulation model, for use on a wide range of computer platforms, from traditional scalar machines to workstation clusters and massively  ...  We would like to acknowledge the work of David Webb at Southampton Oceanography Centre towards MOMA, upon which this parallel model has been based.  ... 
doi:10.1007/s005850050552 fatcat:qewl55bqdrhsneduaxghdr6nrm

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  ...  parallelization ratio of 100%.  ... 
doi:10.1088/1742-6596/454/1/012072 fatcat:rmpdhiliozcubdndcnyt6krdfq

Practical performance portability in the Parallel Ocean Program (POP)

P. W. Jones, P. H. Worley, Y. Yoshida, J. B. White, J. Levesque
2005 Concurrency and Computation  
The design of the Parallel Ocean Program (POP) is described with an emphasis on portability.  ...  A new design of the POP model, including a cache blocking and land point elimination scheme is described with some preliminary performance results.  ...  ACKNOWLEDGEMENTS The authors would like to acknowledge the entire team of POP developers, including R. Malone, R. Smith  ... 
doi:10.1002/cpe.894 fatcat:jrd6lfnrwne3vpkjxvwe7vqd6q

A vector‐based river routing model for Earth System Models: Parallelization and global applications

Naoki Mizukami, Martyn P. Clark, Shervan Gharari, Erik Kluzek, Ming Pan, Peirong Lin, Hylke E. Beck, Dai Yamazaki
2021 Journal of Advances in Modeling Earth Systems  
Readiness of Emerging Technologies in Climate Downscaling and Hydrologic Modeling".  ...  Acknowledgments This study was funded by the NCAR re-investment fund "Accelerated development of CTSM" and partially by NASA AIST-16 fund (AIST-16-0081) "Climate Risks in the Water Sector: Advancing the  ...  The main goal of this modeling work is to develop a river network domain decomposition method that is applicable to parallel computations for any river transport processes, and implement it into a large  ... 
doi:10.1029/2020ms002434 fatcat:znf2nfinfzbrhhuql4k72fqiom

"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.  ...  Domain decomposition Large-scale ocean models derive their scalable parallelism from spatially based domain decomposition.  ... 
doi:10.1145/1435452.1435457 fatcat:5ssxlnzwtfdcvgea4dd6oa37rq

FOAM

Michael Tobis, Chad Schafer, Ian Foster, Robert Jacob, John Anderson
1997 Proceedings of the 1997 ACM/IEEE conference on Supercomputing (CDROM) - Supercomputing '97  
The Fast Ocean_Atmosphere Model (FOAM) is a coupled ocean-atmosphere model that incorporates physics of interest in understanding decade to century time scale variability.  ...  We report here on a project that expands the applicability of dynamic climate modeling to very long time scales.  ...  Acknowledgements This work was supported by the CHAMMP program of the Office of Health and Environmental Research, Environmental Sciences Division, of the U.S.  ... 
doi:10.1145/509593.509620 dblp:conf/sc/TobisSFJA97 fatcat:7p6woqidxbdytdunsqo4s6gpde

A new flexible coupler for earth system modeling developed for CCSM4 and CESM1

Anthony P. Craig, Mariana Vertenstein, Robert Jacob
2011 The international journal of high performance computing applications  
radiation through the atmosphere, the release of latent heat by phase changes of water, and the effects of friction and unresolved turbulent scales.  ...  consisting of four fundamental physical components: an atmosphere model, a surface land model, an ocean model, and a sea ice model.  ...  Vertenstein have been supported by U.S. Department of Energy grants DE-FC02-97ER62402 and XX. M. Vertenstein has also been supported by the National Science Foundation grant AGS-0856145. R. Jacob been  ... 
doi:10.1177/1094342011428141 fatcat:pnnjudjjqraq7f2ncubnnbjisa
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