Spectral transform solutions to the shallow water test set
Journal of Computational Physics
The spectral element method for the shallow water equations on the sphere
Journal of Computational Physics
Multilevel k-way partitioning scheme for irregular graphs
Journal of Parallel and Distributed Computing
Terascale spectral element algorithms and implementations
SC '99 Proceedings of the 1999 ACM/IEEE conference on Supercomputing
Parallel Semi-Implicit Spectral Element Methods for Atmospheric General Circulation Models
Journal of Scientific Computing
LAPACK Working Note 56: Reducing Communication Costs in the Conjugate Gradient Algorithm on Distributed Memory Multiprocessors
International Journal of Parallel Programming
Parallel Implementation Issues: Global versus Local Methods
Computing in Science and Engineering
Multiscale Geophysical Modeling Using the Spectral Element Method
Computing in Science and Engineering
Language and Compiler Support for Hybrid-Parallel Programming on SMP Clusters
ISHPC '02 Proceedings of the 4th International Symposium on High Performance Computing
Communication Bandwidth of Parallel Programming Models on Hybrid Architectures
ISHPC '02 Proceedings of the 4th International Symposium on High Performance Computing
Communication and Optimization Aspects on Hybrid Architectures
Proceedings of the 9th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Dual-level parallelism for deterministic and stochastic CFD problems
Proceedings of the 2002 ACM/IEEE conference on Supercomputing
Towards an Efficient and Scalable Discontinuous Galerkin Atmospheric Model
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 13 - Volume 14
International Journal of High Performance Computing Applications
The NCAR Spectral Element Climate Dynamical Core: Semi-Implicit Eulerian Formulation
Journal of Scientific Computing
Strong and Auxiliary Forms of the Semi-Lagrangian Method for Incompressible Flows
Journal of Scientific Computing
Advances, Applications and Performance of the Global Arrays Shared Memory Programming Toolkit
International Journal of High Performance Computing Applications
High-order Galerkin methods for scalable global atmospheric models
Computers & Geosciences
Scaling climate simulation applications on the IBM Blue Gene/L system
IBM Journal of Research and Development
Efficient hybrid parallelisation of tiled algorithms on SMP clusters
International Journal of Computational Science and Engineering
An implementation of parallel eigenvalue computation using dual-level hybrid parallelism
ICA3PP'07 Proceedings of the 7th international conference on Algorithms and architectures for parallel processing
A Prolate-Element Method for Nonlinear PDEs on the Sphere
Journal of Scientific Computing
Solving the symmetric tridiagonal eigenproblem using MPI/OpenMP hybrid parallelization
APPT'05 Proceedings of the 6th international conference on Advanced Parallel Processing Technologies
High-Order finite element methods for parallel atmospheric modeling
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part I
Improving the performance scalability of the community atmosphere model
International Journal of High Performance Computing Applications
CAM-SE: A scalable spectral element dynamical core for the Community Atmosphere Model
International Journal of High Performance Computing Applications
Hybrid parallelization of a large-scale heart model
Facing the Multicore-Challenge II
Understanding parallelism in graph traversal on multi-core clusters
Computer Science - Research and Development
Journal of Parallel and Distributed Computing
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Climate modeling is a grand challenge problem where scientific progress is measured not in terms of the largest problem that can be solved but by the highest achievable integration rate. These models have been notably absent in previous Gordon Bell competitions due to their inability to scale to large processor counts. A scalable and efficient spectral element atmospheric model is presented. A new semi-implicit time stepping scheme accelerates the integration rate relative to an explicit model by a factor of two, achieving 130 years per day at T63L30 equivalent resolution. Execution rates are reported for the standard shallow water and Held-Suarez climate benchmarks on IBM SP clusters. The explicit T170 equivalent multi-layer shallow water model sustains 343 Gflops at NERSC, 206 Gflops at NPACI (SDSC) and 127 Gflops at NCAR. An explicit Held-Suarez integration sustains 369 Gflops on 128 16-way IBM nodes at NERSC.