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Title: Accelerating Time Integration for the Shallow Water Equations on the Sphere Using GPUs

Journal Article · · Procedia Computer Science
 [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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The push towards larger and larger computational platforms has made it possible for climate simulations to resolve climate dynamics across multiple spatial and temporal scales. This direction in climate simulation has created a strong need to develop scalable timestepping methods capable of accelerating throughput on high performance computing. This study details the recent advances in the implementation of implicit time stepping of the spectral element dynamical core within the United States Department of Energy (DOE) Accelerated Climate Model for Energy (ACME) on graphical processing units (GPU) based machines. We demonstrate how solvers in the Trilinos project are interfaced with ACME and GPU kernels to increase computational speed of the residual calculations in the implicit time stepping method for the atmosphere dynamics. We demonstrate the optimization gains and data structure reorganization that facilitates the performance improvements.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC04-94AL85000; AC05-00OR22725
OSTI ID:
1214700
Alternate ID(s):
OSTI ID: 1265329
Journal Information:
Procedia Computer Science, Vol. 51, Issue C; ISSN 1877-0509
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

References (20)

Compiler support for the Fortran 2003 and 2008 standards revision 10 journal July 2012
Heterogeneous multiscale methods for stiff ordinary differential equations journal May 2005
A Scalable and Adaptable Solution Framework within Components of the Community Climate System Model book January 2009
Accuracy Analysis of a Spectral Element Atmospheric Model Using a Fully Implicit Solution Framework journal August 2010
A spectral element shallow water model on spherical geodesic grids journal January 2001
An initial-value problem for testing numerical models of the global shallow-water equations journal January 2004
An Asymptotic Parallel-in-Time Method for Highly Oscillatory PDEs journal January 2014
An overview of the Trilinos project journal September 2005
A Spectral Deferred Correction Method Applied to the Shallow Water Equations on a Sphere journal October 2013
Jacobian-free Newton–Krylov methods: a survey of approaches and applications journal January 2004
Comparative performance of exponential, implicit, and explicit integrators for stiff systems of ODEs journal March 2013
Scalable parallel programming with CUDA journal March 2008
Algorithmic improvements for schemes using the ADER time discretization journal June 2013
Multi-moment ADER-Taylor methods for systems of conservation laws with source terms in one dimension journal August 2012
Newton-GMRES Preconditioning for Discontinuous Galerkin Discretizations of the Navier–Stokes Equations journal January 2008
Conservative Finite-Difference Approximations of the Primitive Equations on Quasi-Uniform Spherical Grids journal February 1972
Multirate Explicit Adams Methods for Time Integration of Conservation Laws journal August 2008
The Spectral Element Method for the Shallow Water Equations on the Sphere journal January 1997
A standard test set for numerical approximations to the shallow water equations in spherical geometry journal September 1992
Parallel multilevel methods for implicit solution of shallow water equations with nonsmooth topography on the cubed-sphere journal April 2011

Cited By (2)

Acceleration of the IMplicit–EXplicit nonhydrostatic unified model of the atmosphere on manycore processors journal October 2017
Acceleration of the Implicit-Explicit Non-hydrostatic Unified Model of the Atmosphere (NUMA) on Manycore Processors preprint January 2017

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Related Subjects

54 ENVIRONMENTAL SCIENCES
97 MATHEMATICS AND COMPUTING
Implicit Timestepping
GPU
Trilinos