A 3-D Finite-Volume Nonhydrostatic Icosahedral Model (NIM) Jin Lee
|
|
|
- Kerry Marsh
- 6 years ago
- Views:
Transcription
1 A 3-D Finite-Volume Nonhydrostatic Icosahedral Model (NIM) Jin Lee
2 Earth System Research Laboratory(ESRL) Director Dr. A.E. (Sandy) MacDonald GFDLNSSLARLAOMLGLERLPMEL Aeronomy Lab. Climate Diagnostic center Climate Monitoring and Diagnostic Lab Environmental Technology Lab Forecast Systems Lab Chemical Sciences Div Global Monitoring Div Physical Sciences Div Global Systems Div Modeling goal: to develop a non-hydrostatic icosahedral global model for weather and climate predictions
3 ESRL Finite-Volume Icos-Models (FIM/NIM) ESMF Hydrostatic FIM Flow-Following Finite-volume Icosahedral Model Target resolution 10 km A hydrostatic model consists of 2-D finite-volume SWM coupled with hybrid σ-θ vertical solver. Produce accurate medium-range weather forecasts Non-Hydrostatic NIM Nonhydrostatic Icosahedral Model Target resolution : O (1 km) and beyond Extension of 2-D finite-volume integration into 3-D integration on control volume for multi-scales simuliations. Use the latest GPU technology to speed up high-resolution model calculations. 3
4 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Lee and MacDonald (MWR 2009): A Finite-Volume Icosahedral Shallow Water Model on Local Coordinate. z S Ο P x y l k i n k i 2-D f.-v. operator carried out on straight lines rather than along the 3-D curved lines on the sphere NOAA Earth System Research Laboratory - Boulder Colorado Page 4
5 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3 rd -order FCT Scheme - Lee Bleck and MacDonald (2010 JCP): A Multistep Flux-Corrected Transport Scheme.. NOAA Earth System Research Laboratory - Boulder Colorado Page 5
6 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics - Bleck Benjamin Lee and MacDonald (2010 MWR): On the Use of an Arbitrary Lagrangian-Eulerian Vertical Coordinate in Global Atmospheric Modeling.. NOAA Earth System Research Laboratory - Boulder Colorado Page 6
7 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid - MacDonald Middlecoff Henderson and Lee (2010 IJHPC) : A General Method for Modeling on Irregular Grids.. NOAA Earth System Research Laboratory - Boulder Colorado Page 8
8 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy - Wang and Lee (2011 SIAM): Geometric Properties of Icosahedral-Hexagonal Grid on Sphere. NOAA Earth System Research Laboratory - Boulder Colorado Page 9
9 Comparisons of Icosa-grids SBiR SPDN MGCL Uniformity Regularity SBiR MBiR SGCL MGCL
10 Williamson etal.(1992) Case V: Zonal flow over Mountain (no dissipation) STD SPN MGC
11 SBiR (G8/dt=45 sec)
12 MGCL (G8/dt=36 sec blow up with dt=45)
13 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. 3-D control volume box l k i n k i NOAA Earth System Research Laboratory - Boulder Colorado Page 14
14 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. - Conservative flux formulation on height coordinate. NOAA Earth System Research Laboratory - Boulder Colorado Page 15
15 NOAA Earth System Research Laboratory - Boulder Colorado Page 16 3-D control volume box ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) κ π γ π γ ρ ρ ρ ρ ρθ ρ ρ ρ ρ ρ θ θ θ ρ ρ π π ρ π γ π γ π γ = Θ = Θ = = Θ = Θ = Θ = Θ = Θ = = Θ = Θ Θ = Θ 0 ; 0 0 ); ( ) ( ) ( ) ( ; 0. 0 p p p R p p R p t z y x z t z y x t z y x z t z y x w v u W V U q p v u S z Wq y Vq x Uq t q T C H z W y V x U t z W y V x U t g g z R z Ww y Vw x Uw t W F y R z Wv y Vv x Uv t V F x R z Wu y Vu x Uu t U Flux form GEs on 3-D control volume on height coord.
16 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. - Conservative flux formulation on z-coordiante. - 3-D volume Integration to calculate PGF. NOAA Earth System Research Laboratory - Boulder Colorado Page 17
17 Various PGF treatments over topography p x ~ p x z x' z ' z p z' Cut cell * A. Adcroft etal. Mon. Wea. Rev d f.-v. integration over topography
18 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. - Conservative flux formulation on z-coordiante. - 3-D volume Integration to calculate PGF. - Horizontal explicit vertical implicit (HEVI). NOAA Earth System Research Laboratory - Boulder Colorado Page 19
19 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. - Conservative flux formulation on z-coordiante. - 3-D volume Integration to calculate PGF. - Horizontal explicit vertical implicit (HEVI). - Runge-Kutta (RK4) for time discretization. NOAA Earth System Research Laboratory - Boulder Colorado Page 20
20 Novel features of FIM/NIM: Finite-volume Integrations on Local Coordinate Conservative and Monotonic Adams-Bashforth 3rd-order FCT Scheme FIM: Hybrid σ-θ Coordinate w/ GFS Physics Efficient Indirect Addressing Scheme on Irregular Grid Grid Optimization for Efficiency and Accuracy Novel Features of NIM: -Three-dimensional finite-volume integration. - Conservative flux formulation on z-coordiante. - 3-D volume Integration to calculate PGF. - Horizontal explicit vertical implicit (HEVI). - Runge-Kutta (RK4) for time discretization. - Fast GPUs to speed up calculation. NOAA Earth System Research Laboratory - Boulder Colorado Page 21
21 NIM benchmarks test cases heat forced circulation (Cartesian) warm bubble (Cartesian) density current (Cartesian) linear mountain waves (Cartesian) Internal gravity waves (DCMIP:Icos-grid) mountain waves (DCMIP:Icos-grid) tropical cyclone (DCMIP:Icos-grid) baroclinic waves (DCMIP: in progress) multi-months aqua-planet simulations (Icos-grid)
22 Vertical Zonal Wind Shear in DCMIP mountain wave cases Case 2.1 Case 2.2
23 DCMIP: 2.1 (small earth X=500 dz=500m ) Endgame MCORE MPAS/G5 NIM/G5
24 Endgame DCMIP: 2.2 (small earth) MCORE MPAS/G5 NIM/G5
25 No shear case dz = 500 m DCMIP: case 2 (small earth) NIM: resolution Sensitivities Shear case dz = 500 m No shear case dz = 250 m Shear case dz = 250 m
26 Physics packages & aqua-plan et simulations 27
27 Aqua-Planet Simulation NIM 800-day aqua-planet simulation 28 MODEL SST Resolution Vertical Model top t NIM/GFS NIM/GRIMs Zonally uniform max. temp. on equator G5 ( x ~ 240 km) 32 Stretch layers 25 km 20 min
28 NIM aqua-planet simulation Hoskins et al. (1999) Tellus NIM mean zonal wind
29 T Tendency from physics (K/6hr) G6K32 G6K96 30
30 NIM real data simulation initialized with GFS initial condition (comparisons of precipiation fcsts) Interpolate GFS initial data to Icosahedral grid. Perform hydrostatic initialization. Perform 10-day fcsts on G6 grid (~120km) and 56 layers. Use GFS terrain & sfc parameters physics package. Precipitation comparison
31
32
33
34 NIM/GPU implementation (fine grain parallization) Mark Govett Tom Henderson Jacques Middlecoff Jim Rosinski - NIM was implemented on CPU and GPU Architectures Code converted to CUDA using the F2C-ACC compiler we developed NIM used by vendors (PGICAPS) to benchmark commercial GPU compilers Single GPU communications Serial Performance Parallel Performance GPU#1 Multi - GPU communications GPU#2 Input GPU#1 CPU#1 Output - Maintain single source code CPU#1 SMS CPU#2 MPI communications 35
35 2013: CPUs vs. GPUs 6-core Westmere CPU 8-core Opteron CPU 8-core Sandybridge CPU C2050 Fermi GPU K20X Kepler GPU Short time period runs I/O not included Only limited performance tuning on Opteron and Kepler thus far (gaea) One socket of each technology 36
36 Final remarks and Outlook A 3-D f.-v. Nonhydrostatic Icosahedral Model (NIM) has been developed and tested w/ benchmarks 3-D f.-v. integration calculates PGF over topography with 3-D control volume integration Incorporated GFS GRIMs MPAS physics into NIM modeling systems NIM for medium-range weather forecasts at < 10-km resolution with large numbers of vertical layers to improve HIWP. A potential postdoctoral position in dynamical core research area Jin.Lee@noaa.gov 37
Parallelization of the NIM Dynamical Core for GPUs
Xbox 360 CPU Parallelization of the NIM Dynamical Core for GPUs Mark Govett Jacques Middlecoff, Tom Henderson, JimRosinski, Craig Tierney Bigger Systems More oeexpensive e Facilities Bigger Power Bills
Running the FIM and NIM Weather Models on GPUs
Running the FIM and NIM Weather Models on GPUs Mark Govett Tom Henderson, Jacques Middlecoff, Jim Rosinski, Paul Madden NOAA Earth System Research Laboratory Global Models 0 to 14 days 10 to 30 KM resolution
A mass-conservative version of the semi- Lagrangian semi-implicit HIRLAM using Lagrangian vertical coordinates
A mass-conservative version of the semi- Lagrangian semi-implicit HIRLAM using Lagrangian vertical coordinates Peter Hjort Lauritzen Atmospheric Modeling & Predictability Section National Center for Atmospheric
Progress on GPU Parallelization of the NIM Prototype Numerical Weather Prediction Dynamical Core
Progress on GPU Parallelization of the NIM Prototype Numerical Weather Prediction Dynamical Core Tom Henderson NOAA/OAR/ESRL/GSD/ACE Thomas.B.Henderson@noaa.gov Mark Govett, Jacques Middlecoff Paul Madden,
CPU GPU. Regional Models. Global Models. Bigger Systems More Expensive Facili:es Bigger Power Bills Lower System Reliability
Xbox 360 Successes and Challenges using GPUs for Weather and Climate Models DOE Jaguar Mark GoveM Jacques Middlecoff, Tom Henderson, Jim Rosinski, Craig Tierney CPU Bigger Systems More Expensive Facili:es
Global non-hydrostatic modelling using Voronoi meshes: The MPAS model
Global non-hydrostatic modelling using Voronoi meshes: The MPAS model William C. Skamarock, Joseph B. Klemp, Michael Duda, Laura Fowler and Sang-Hun Park National Center for Atmospheric Research Boulder,
Running the NIM Next-Generation Weather Model on GPUs
Running the NIM Next-Generation Weather Model on GPUs M.Govett 1, J.Middlecoff 2 and T.Henderson 2 1 NOAA Earth System Research Laboratory, Boulder, CO, USA 2 Cooperative Institute for Research in the
Two-Phase flows on massively parallel multi-gpu clusters
Two-Phase flows on massively parallel multi-gpu clusters Peter Zaspel Michael Griebel Institute for Numerical Simulation Rheinische Friedrich-Wilhelms-Universität Bonn Workshop Programming of Heterogeneous
A Test Suite for GCMs: An Intercomparison of 11 Dynamical Cores
A Test Suite for GCMs: An Intercomparison of 11 Dynamical Cores Christiane Jablonowski 1, Peter Lauritzen 2, Mark 3 Taylor, Ram Nair 2 1 University of Michigan, 2 National Center for Atmospheric Research,
A Semi-Lagrangian Discontinuous Galerkin (SLDG) Conservative Transport Scheme on the Cubed-Sphere
A Semi-Lagrangian Discontinuous Galerkin (SLDG) Conservative Transport Scheme on the Cubed-Sphere Ram Nair Computational and Information Systems Laboratory (CISL) National Center for Atmospheric Research
CESM Projects Using ESMF and NUOPC Conventions
CESM Projects Using ESMF and NUOPC Conventions Cecelia DeLuca NOAA ESRL/University of Colorado CESM Annual Workshop June 18, 2014 Outline ESMF development update Joint CESM-ESMF projects ESMF applications:
Global Numerical Weather Predictions and the semi-lagrangian semi-implicit dynamical 1 / 27. ECMWF forecast model
Global Numerical Weather Predictions and the semi-lagrangian semi-implicit dynamical core of the ECMWF forecast model Michail Diamantakis ECMWF Symposium on Modelling and Computations in Atmospheric Sciences
Successes and Challenges Using GPUs for Weather and Climate Models
Successes and Challenges Using GPUs for Weather and Climate Models Mark Gove; Tom Henderson, Jacques Middlecoff, Jim Rosinski NOAA Earth System Research Laboratory GPU Programming Approaches Language Approach
PQM, CONTINUOUS ISOPYCNAL COORDS & IMPLICATIONS FOR HYBRID COORDS
Laurent White, Alistair Adcroft (Princeton Univ.) & Robert Hallberg (GFDL) PQM, CONTINUOUS ISOPYCNAL COORDS & IMPLICATIONS FOR HYBRID COORDS White & Adcroft, JCP 2008 White, Adcroft & Hallberg, JCP subm.
The next generation supercomputer. Masami NARITA, Keiichi KATAYAMA Numerical Prediction Division, Japan Meteorological Agency
The next generation supercomputer and NWP system of JMA Masami NARITA, Keiichi KATAYAMA Numerical Prediction Division, Japan Meteorological Agency Contents JMA supercomputer systems Current system (Mar
A Multiscale Non-hydrostatic Atmospheric Model for Regional and Global Applications
A Multiscale Non-hydrostatic Atmospheric Model for Regional and Global Applications James D. Doyle 1, Frank Giraldo 2, Saša Gaberšek 1 1 Naval Research Laboratory, Monterey, CA, USA 2 Naval Postgraduate
Two dynamical core formulation flaws exposed by a. baroclinic instability test case
Two dynamical core formulation flaws exposed by a baroclinic instability test case David L. Williamson, Jerry G. Olson National Center for Atmospheric Research, Boulder, CO, USA Christiane Jablonowski
Scalability of Elliptic Solvers in NWP. Weather and Climate- Prediction
Background Scaling results Tensor product geometric multigrid Summary and Outlook 1/21 Scalability of Elliptic Solvers in Numerical Weather and Climate- Prediction Eike Hermann Müller, Robert Scheichl
The CSLaM transport scheme & new numerical mixing diagnostics
The CSLaM transport scheme & new numerical mixing diagnostics CESM Ocean Model Working Group Meeting 14 15 December, 2011 Peter Hjort Lauritzen Outline: Two parts Briefly introduce the CSLaM scheme (Conservative
An explicit and conservative remapping strategy for semi-lagrangian advection
An explicit and conservative remapping strategy for semi-lagrangian advection Sebastian Reich Universität Potsdam, Potsdam, Germany January 17, 2007 Abstract A conservative semi-lagrangian advection scheme
Porting and Tuning WRF Physics Packages on Intel Xeon and Xeon Phi and NVIDIA GPU
Porting and Tuning WRF Physics Packages on Intel Xeon and Xeon Phi and NVIDIA GPU Tom Henderson Thomas.B.Henderson@noaa.gov Mark Govett, James Rosinski, Jacques Middlecoff NOAA Global Systems Division
Development and Testing of a Next Generation Spectral Element Model for the US Navy
Development and Testing of a Next Generation Spectral Element Model for the US Navy Alex Reinecke 1, Kevin Viner 1, James Doyle 1, Sasa Gabersek 1, Matus Martini 2, John Mickalakes 3, Dave Ryglicki 4,
EULAG: high-resolution computational model for research of multi-scale geophysical fluid dynamics
Zbigniew P. Piotrowski *,** EULAG: high-resolution computational model for research of multi-scale geophysical fluid dynamics *Geophysical Turbulence Program, National Center for Atmospheric Research,
Tsunami coastal impact The use of VOF-URANS methods with examples
Tsunami coastal impact The use of VOF-URANS methods with examples Richard MARCER 2 Content Coastal impact : physics to simulate EOLE CFD : a 3D Navier-Stokes code Focus on the VOF free surface method Examples
Initial results and performance of the GFDL Cubed-Sphere Model
Initial results and performance of the GFDL Cubed-Sphere Model Bruce Wyman 1, Shian-Jiann Lin 1, William Putnam 2, Michael Herzog 3, Chris Kerr 3, Jeff Durachta 4, Zhi Liang 4, V. Balaji 5, Isaac Held
A Spectral Element Eulerian-Lagrangian Atmospheric Model (SEELAM)
A Spectral Element Eulerian-Lagrangian Atmospheric Model SEELAM Francis X. Giraldo Naval Research Laboratory Monterey, CA 93943 E-mail: giraldo@nrlmry.navy.mil A new dynamical core for numerical weather
Advanced Numerical Methods for Numerical Weather Prediction
Advanced Numerical Methods for Numerical Weather Prediction Francis X. Giraldo Naval Research Laboratory Monterey, CA 93943-5502 phone: (831) 656-4882 fax: (831) 656-4769 e-mail: giraldo@nrlmry.navy.mil
Advanced Numerical Methods for Numerical Weather Prediction
Advanced Numerical Methods for Numerical Weather Prediction Francis X. Giraldo Naval Research Laboratory Monterey, CA 93943-5502 phone: (831) 656-4882 fax: (831) 656-4769 e-mail: giraldo@nrlmry.navy.mil
Regional Cooperation for Limited Area Modeling in Central Europe. Dynamics in LACE. Petra Smolíková thanks to many colleagues
Dynamics in LACE Petra Smolíková thanks to many colleagues Outline 1 1. VFE NH Design of vertical finite elements scheme for NH version of the model 2. SL scheme Application of ENO technique to SL interpolations
Advanced Numerical Methods for NWP Models
Advanced Numerical Methods for NWP Models Francis X. Giraldo Naval Postgraduate School Monterey, CA 93943-5502 phone: (831) 656-2293 fax: (831) 656-2355 e-mail: fxgirald@nps.edu Award #: N0001406WX20257
Porting the ICON Non-hydrostatic Dynamics and Physics to GPUs
Porting the ICON Non-hydrostatic Dynamics and Physics to GPUs William Sawyer (CSCS/ETH), Christian Conti (ETH), Xavier Lapillonne (C2SM/ETH) Programming weather, climate, and earth-system models on heterogeneous
The ICON project: Design and performance of an unstructured grid approach for a global triangular grid model
The ICON project: Design and performance of an unstructured grid approach for a global triangular grid model Luis Kornblueh, Luca Bonaventura, and Peter Sanders,... ICON : ICOsahedral, Nonhdyrostatic model
University of Reading. Discretization On Non-uniform Meshes: Tests solving shallow-water equations
University of Reading School of Mathematics, Meteorology and Physics Discretization On Non-uniform Meshes: Tests solving shallow-water equations By FAWZI B ALBUSAIDI August 2008 This dissertation is submitted
The Icosahedral Nonhydrostatic (ICON) Model
The Icosahedral Nonhydrostatic (ICON) Model Scalability on Massively Parallel Computer Architectures Florian Prill, DWD + the ICON team 15th ECMWF Workshop on HPC in Meteorology October 2, 2012 ICON =
Progress Porting and Tuning NWP Physics Packages on Intel Xeon Phi
Progress Porting and Tuning NWP Physics Packages on Intel Xeon Phi Tom Henderson Thomas.B.Henderson@noaa.gov Mark Govett, Jacques Middlecoff James Rosinski NOAA Global Systems Division Indraneil Gokhale,
Sensitivity of resolved and parameterized surface drag to changes in resolution and parameterization
Sensitivity of resolved and parameterized surface drag to changes in resolution and parameterization Annelize van Niekerk Ted Shepherd With thanks to: Simon Vosper, Stuart Webster, Andy Elvidge, Irina
Vertically combined shaved cell method in a z-coordinate nonhydrostatic atmospheric model
ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. 9: 171 175 (2008) Published online 16 June 2008 in Wiley InterScience (www.interscience.wiley.com).187 Vertically combined shaved cell method in a z-coordinate
Development of Compressible-Incompressible Link to Efficiently Model Bubble Dynamics near Floating Body Chao-Tsung Hsiao 1, Georges L.
Development of Compressible-Incompressible Link to Efficiently Model Bubble Dynamics near Floating Body Chao-Tsung Hsiao 1, Georges L. Chahine 1 DYNAFLOW, INC. 1061-J Iron Bridge Road, Jessup, MD 0794,
Matrix-free multi-gpu Implementation of Elliptic Solvers for strongly anisotropic PDEs
Iterative Solvers Numerical Results Conclusion and outlook 1/18 Matrix-free multi-gpu Implementation of Elliptic Solvers for strongly anisotropic PDEs Eike Hermann Müller, Robert Scheichl, Eero Vainikko
Parallel Adaptive Tsunami Modelling with Triangular Discontinuous Galerkin Schemes
Parallel Adaptive Tsunami Modelling with Triangular Discontinuous Galerkin Schemes Stefan Vater 1 Kaveh Rahnema 2 Jörn Behrens 1 Michael Bader 2 1 Universität Hamburg 2014 PDES Workshop 2 TU München Partial
ATM 298, Spring 2013 Lecture 4 Numerical Methods: Horizontal DiscreDzaDons April 10, Paul A. Ullrich (HH 251)
ATM 298, Spring 2013 Lecture 4 Numerical Methods: Horizontal DiscreDzaDons April 10, 2013 Paul A. Ullrich (HH 251) paullrich@ucdavis.edu Outline 1. Introduction / Motivation 2. Finite Difference Methods
NOAA-GFDL s new ocean model: MOM6
NOAA-GFDL s new ocean model: MOM6 Presented by Alistair Adcroft with Robert Hallberg, Stephen Griffies, and the extended OMDT at GFDL CESM workshop, Ocean Model Working Group, Breckenridge, CO What is
Pentagon Shield: Experiments with a nonosillatory forwardin-time CFD code (EuLag) to simulate flow around the Pentagon
Pentagon Shield: Experiments with a nonosillatory forwardin-time CFD code (EuLag) to simulate flow around the Pentagon 8 th GMU Conf. on Transport and Dispersion Modeling 15 July 2004 Piotr Smolarkiewicz
The semi-lagrangian technique: current status and future 4 September developments / 42
The semi-lagrangian technique: current status and future developments Michail Diamantakis ECMWF 4 September 2013 (thanks to: Adrian Simmons, Niels Borman and Richard Forbes) The semi-lagrangian technique:
Radial Basis Function-Generated Finite Differences (RBF-FD): New Opportunities for Applications in Scientific Computing
Radial Basis Function-Generated Finite Differences (RBF-FD): New Opportunities for Applications in Scientific Computing Natasha Flyer National Center for Atmospheric Research Boulder, CO Meshes vs. Mesh-free
EXPOSING PARTICLE PARALLELISM IN THE XGC PIC CODE BY EXPLOITING GPU MEMORY HIERARCHY. Stephen Abbott, March
EXPOSING PARTICLE PARALLELISM IN THE XGC PIC CODE BY EXPLOITING GPU MEMORY HIERARCHY Stephen Abbott, March 26 2018 ACKNOWLEDGEMENTS Collaborators: Oak Ridge Nation Laboratory- Ed D Azevedo NVIDIA - Peng
multi-moments moments or multi-moment moment constraints:
Isaac Newton Institute for Mathematical Sciences Program on Multiscale Numerics for the Atmosphere and Ocean Cambridge, Nov. 16, 2012 High order finite volume methods using multi-moments moments or multi-moment
Nonhydrostatic Atmospheric Modeling using a z-coordinate Representation
2143 Nonhydrostatic Atmospheric Modeling using a -Coordinate Representation JÜRGEN STEPPELER Deutscher Wetterdienst, Offenbach, Germany HEINZ-WERNER BITZER AWGeophys OrgELBW, Offenbach, Germany MAUD MINOTTE
Improving climate model coupling through complete mesh representation
Improving climate model coupling through complete mesh representation Robert Jacob, Iulian Grindeanu, Vijay Mahadevan, Jason Sarich July 12, 2018 3 rd Workshop on Physics Dynamics Coupling Support: U.S.
QUASI-3D SOLVER OF MEANDERING RIVER FLOWS BY CIP-SOROBAN SCHEME IN CYLINDRICAL COORDINATES WITH SUPPORT OF BOUNDARY FITTED COORDINATE METHOD
QUASI-3D SOLVER OF MEANDERING RIVER FLOWS BY CIP-SOROBAN SCHEME IN CYLINDRICAL COORDINATES WITH SUPPORT OF BOUNDARY FITTED COORDINATE METHOD Keisuke Yoshida, Tadaharu Ishikawa Dr. Eng., Tokyo Institute
Timothy Lanfear, NVIDIA HPC
GPU COMPUTING AND THE Timothy Lanfear, NVIDIA FUTURE OF HPC Exascale Computing will Enable Transformational Science Results First-principles simulation of combustion for new high-efficiency, lowemision
GPU-optimized computational speed-up for the atmospheric chemistry box model from CAM4-Chem
GPU-optimized computational speed-up for the atmospheric chemistry box model from CAM4-Chem Presenter: Jian Sun Advisor: Joshua S. Fu Collaborator: John B. Drake, Qingzhao Zhu, Azzam Haidar, Mark Gates,
An Efficient Integrated Dynamics-Physics Coupling Strategy for Global Cloud-Resolving Models
An Efficient Integrated Dynamics-Physics Coupling Strategy for Global Cloud-Resolving Models S.-J. Lin, NOAA/Geophysical Fluid Dynamics Laboratory, Princeton The concept of Super Dynamics developed while
RK-Time Integration and High-Order Spatial Discretization a New Dynamical Core for the LMK
RK-Time Integration and High-Order Spatial Discretization a New Dynamical Core for the LMK Jochen Förstner Deutscher Wetterdienst, Kaiserleistraße 35, 63067 Offenbach am Main jochen.foerstner@dwd.de COSMO
Efficient multigrid solvers for strongly anisotropic PDEs in atmospheric modelling
Iterative Solvers Numerical Results Conclusion and outlook 1/22 Efficient multigrid solvers for strongly anisotropic PDEs in atmospheric modelling Part II: GPU Implementation and Scaling on Titan Eike
The Global Nonhydrostatic Model NICAM: numerics and performance of its dynamical core
The Global Nonhydrostatic Model NICAM: numerics and performance of its dynamical core H. Tomita and M. Satoh Frontier Research Center for Global Change 3173-25 Showamachi, Kanazawa-ku, Yokohama-city, Kanagawa,236-0001,
Unified Model Performance on the NEC SX-6
Unified Model Performance on the NEC SX-6 Paul Selwood Crown copyright 2004 Page 1 Introduction The Met Office National Weather Service Global and Local Area Climate Prediction (Hadley Centre) Operational
Cloth Simulation. COMP 768 Presentation Zhen Wei
Cloth Simulation COMP 768 Presentation Zhen Wei Outline Motivation and Application Cloth Simulation Methods Physically-based Cloth Simulation Overview Development References 2 Motivation Movies Games VR
R&D on dynamical kernels and subkm scale modeling with ALADIN/AROME. 35th EWGLAM and 20th SRNWP Meeting
R&D on dynamical kernels and subkm scale modeling with ALADIN/AROME 35th EWGLAM and 20th SRNWP Meeting Outline 1. 500m resolution experiments 2. Scalability 3. Ongoing research in Meteo-France with dynamics
Overlapping Computation and Communication for Advection on Hybrid Parallel Computers
Overlapping Computation and Communication for Advection on Hybrid Parallel Computers James B White III (Trey) trey@ucar.edu National Center for Atmospheric Research Jack Dongarra dongarra@eecs.utk.edu
Junhong Wei Goethe University of Frankfurt. Other contributor: Prof. Dr. Ulrich Achatz, Dr. Gergely Bölöni
Efficient modelling of the gravity-wave interaction with unbalanced resolved flows: Pseudo-momentum-flux convergence vs direct approach Junhong Wei Goethe University of Frankfurt Other contributor: Prof.
New Features of HYCOM. Alan J. Wallcraft Naval Research Laboratory. 14th Layered Ocean Model Workshop
New Features of HYCOM Alan J. Wallcraft Naval Research Laboratory 14th Layered Ocean Model Workshop August 22, 2007 HYCOM 2.2 (I) Maintain all features of HYCOM 2.1 Orthogonal curvilinear grids Can emulate
The Level Set Method. Lecture Notes, MIT J / 2.097J / 6.339J Numerical Methods for Partial Differential Equations
The Level Set Method Lecture Notes, MIT 16.920J / 2.097J / 6.339J Numerical Methods for Partial Differential Equations Per-Olof Persson persson@mit.edu March 7, 2005 1 Evolving Curves and Surfaces Evolving
Debojyoti Ghosh. Adviser: Dr. James Baeder Alfred Gessow Rotorcraft Center Department of Aerospace Engineering
Debojyoti Ghosh Adviser: Dr. James Baeder Alfred Gessow Rotorcraft Center Department of Aerospace Engineering To study the Dynamic Stalling of rotor blade cross-sections Unsteady Aerodynamics: Time varying
Flux Vector Splitting Methods for the Euler Equations on 3D Unstructured Meshes for CPU/GPU Clusters
Flux Vector Splitting Methods for the Euler Equations on 3D Unstructured Meshes for CPU/GPU Clusters Manfred Liebmann Technische Universität München Chair of Optimal Control Center for Mathematical Sciences,
Simulation and visualization of simple leapfrog advection scheme. ATMO 558 Term Project Koichi Sakaguchi
Simulation and visualization of simple leapfrog advection scheme ATMO 558 Term Project Koichi Sakaguchi Outline 1. Motivation 2. Method 2D a) Equations b) Model domain & grid setup c) Initial condition
A finite-volume integration method for computing pressure gradient force in general vertical coordinates
Q. J. R. Meteorol. Soc. (1997), 123, pp. 1749-1 762 A finite-volume integration method for computing pressure gradient force in general vertical coordinates By SHIAN-JIANN LIN* University of Maryland,
Interpolation of gridded data using Geostrophic Balance. Lennon O Naraigh *
Interpolation of gridded data using Geostrophic Balance Lennon O Naraigh * Date: 6 th September 2004 Abstract: In this report, a method of interpolating data from the grid of a global climate model (GCM)
Advective and conservative semi-lagrangian schemes on uniform and non-uniform grids
Advective and conservative semi-lagrangian schemes on uniform and non-uniform grids M. Mehrenberger Université de Strasbourg and Max-Planck Institut für Plasmaphysik 5 September 2013 M. Mehrenberger (UDS
The Earth System Modeling Framework (and Beyond)
The Earth System Modeling Framework (and Beyond) Fei Liu NOAA Environmental Software Infrastructure and Interoperability http://www.esrl.noaa.gov/nesii/ March 27, 2013 GEOSS Community ESMF is an established
MATERHORN The immersed boundary method for flow over complex terrain
MATERHORN The immersed boundary method for flow over complex terrain Tina Katopodes Chow, Jingyi Bao, Jason Simon Civil and Environmental Engineering University of California, Berkeley Overview p Field
Overview of Traditional Surface Tracking Methods
Liquid Simulation With Mesh-Based Surface Tracking Overview of Traditional Surface Tracking Methods Matthias Müller Introduction Research lead of NVIDIA PhysX team PhysX GPU acc. Game physics engine www.nvidia.com\physx
Coastal Ocean Modeling & Dynamics
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Coastal Ocean Modeling & Dynamics Roger M. Samelson College of Oceanic and Atmospheric Sciences Oregon State University
High performance computing in an operational setting. Johan
High performance computing in an operational setting Johan Hartnack(jnh@dhigroup.com) DHI in short We re an independent, private and not-for-profit organisation Our people are highly qualified 80% of our
Extension of NHWAVE to Couple LAMMPS for Modeling Wave Interactions with Arctic Ice Floes
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Extension of NHWAVE to Couple LAMMPS for Modeling Wave Interactions with Arctic Ice Floes Fengyan Shi and James T. Kirby
INTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 2, No 3, 2012
INTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 2, No 3, 2012 Copyright 2010 All rights reserved Integrated Publishing services Research article ISSN 0976 4399 Efficiency and performances
Table of contents for: Waves and Mean Flows by Oliver Bühler Cambridge University Press 2009 Monographs on Mechanics. Contents.
Table of contents for: Waves and Mean Flows by Oliver Bühler Cambridge University Press 2009 Monographs on Mechanics. Preface page 2 Part I Fluid Dynamics and Waves 7 1 Elements of fluid dynamics 9 1.1
A Toolbox of Level Set Methods
A Toolbox of Level Set Methods Ian Mitchell Department of Computer Science University of British Columbia http://www.cs.ubc.ca/~mitchell mitchell@cs.ubc.ca research supported by the Natural Science and
Numerical Analysis of Shock Tube Problem by using TVD and ACM Schemes
Numerical Analysis of Shock Tube Problem by using TVD and Schemes Dr. Mukkarum Husain, Dr. M. Nauman Qureshi, Syed Zaid Hasany IST Karachi, Email: mrmukkarum@yahoo.com Abstract Computational Fluid Dynamics
A Massively Parallel Two-Phase Solver for Incompressible Fluids on Multi-GPU Clusters
A Massively Parallel Two-Phase Solver for Incompressible Fluids on Multi-GPU Clusters Peter Zaspel Michael Griebel Institute for Numerical Simulation Rheinische Friedrich-Wilhelms-Universität Bonn GPU
An explicit and conservative remapping strategy for semi-lagrangian advection
ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. 8: 58 63 (2007) Published online 22 May 2007 in Wiley InterScience (www.interscience.wiley.com).151 An explicit and conservative remapping strategy for semi-lagrangian
Simulation of Turbulent Particulate Flow on HPC Systems
Simulation of Turbulent Particulate Flow on HPC Systems Konstantin Fröhlich, Lennart Schneiders, Matthias Meinke, Wolfgang Schröder k.froehlich@aia.rwth-aachen.de Institute of Aerodynamics RWTH Aachen
Particle Tracking Model Data Analysis Tools Part 1: Capabilities in SMS
Particle Tracking Model Data Analysis Tools Part 1: Capabilities in SMS by Zeki Demirbilek, Tahirih Lackey, and Alan K. Zundel PURPOSE: This document describes new analysis methods and tools added to the
The vertical stratification is modeled by 4 layers in which we work with averaged concentrations in vertical direction:
Numerical methods in smog prediction M. van Loon Center for Mathematics and Computer Science, dep. AW, P.O. Boz ^072 J(%%? GB Ams
Lab 9: FLUENT: Transient Natural Convection Between Concentric Cylinders
Lab 9: FLUENT: Transient Natural Convection Between Concentric Cylinders Objective: The objective of this laboratory is to introduce how to use FLUENT to solve both transient and natural convection problems.
The Spherical Harmonics Discrete Ordinate Method for Atmospheric Radiative Transfer
The Spherical Harmonics Discrete Ordinate Method for Atmospheric Radiative Transfer K. Franklin Evans Program in Atmospheric and Oceanic Sciences University of Colorado, Boulder Computational Methods in
Unstructured grid modelling
Unstructured grid modelling Intercomparison between several finite element and finite volume approaches to model the North Sea tides Silvia Maßmann 1, Alexey Androsov 1, Sergey Danilov 1 and Jens Schröter
Recent research for dynamical cores of nonhydrostatic, deep-atmosphere, unified models
Recent research for dynamical cores of nonhydrostatic, deep-atmosphere, unified models Andrew Staniforth and Nigel Wood Met Office, FitzRoy Road, Exeter EX1 3PB, United Kingdom Andrew.Staniforth@metoffice.gov.uk,
MODELED MESOSCALE GRAVITY WAVES: CONTINUOUS SPECTRUM AND ENERGY CASCADE Chungu Lu 1, Steven Koch, Fuqing Zhang, and Ning Wang
P6.5 MODELED MESOSCALE GRAVITY WAVES: CONTINUOUS SPECTRUM AND ENERGY CASCADE Chungu Lu 1, Steven Koch, Fuqing Zhang, and Ning Wang NOAA Research-Forecast Systems Laboratory, Boulder, Colorado [In collaboration
Accelerated ANSYS Fluent: Algebraic Multigrid on a GPU. Robert Strzodka NVAMG Project Lead
Accelerated ANSYS Fluent: Algebraic Multigrid on a GPU Robert Strzodka NVAMG Project Lead A Parallel Success Story in Five Steps 2 Step 1: Understand Application ANSYS Fluent Computational Fluid Dynamics
CS205b/CME306. Lecture 9
CS205b/CME306 Lecture 9 1 Convection Supplementary Reading: Osher and Fedkiw, Sections 3.3 and 3.5; Leveque, Sections 6.7, 8.3, 10.2, 10.4. For a reference on Newton polynomial interpolation via divided
Deutscher Wetterdienst
Porting Operational Models to Multi- and Many-Core Architectures Ulrich Schättler Deutscher Wetterdienst Oliver Fuhrer MeteoSchweiz Xavier Lapillonne MeteoSchweiz Contents Strong Scalability of the Operational
Use of isopycnic-coordinate ocean models in long-term global simulations
Use of isopycnic-coordinate ocean models in long-term global simulations Rainer Bleck NASA Goddard Institute for Space Studies New York June 2015 Subtitle, slightly more to the point: Relaxing the incompressibility
A Multiscale Nested Modeling Framework to Simulate the Interaction of Surface Gravity Waves with Nonlinear Internal Gravity Waves
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. A Multiscale Nested Modeling Framework to Simulate the Interaction of Surface Gravity Waves with Nonlinear Internal Gravity
VI Workshop Brasileiro de Micrometeorologia
Validation of a statistic algorithm applied to LES model Eduardo Bárbaro, Amauri Oliveira, Jacyra Soares November 2009 Index Objective 1 Objective 2 3 Vertical Profiles Flow properties 4 Objective 1 The
Towards Exascale Computing with the Atmospheric Model NUMA
Towards Exascale Computing with the Atmospheric Model NUMA Andreas Müller, Daniel S. Abdi, Michal Kopera, Lucas Wilcox, Francis X. Giraldo Department of Applied Mathematics Naval Postgraduate School, Monterey
A New Dynamical Core with Local Mesh Refinement. Todd Ringler
A New Dynamical Core with Local Mesh Refinement Todd Ringler Los Alamos National Laboratory Theoretical Division LA-UR 09-05207 Climate, Ocean and Sea-Ice Modeling Project http://public.lanl.gov/ringler/ringler.html
Extending scalability of the community atmosphere model
Journal of Physics: Conference Series Extending scalability of the community atmosphere model To cite this article: A Mirin and P Worley 2007 J. Phys.: Conf. Ser. 78 012082 Recent citations - Evaluation
NUMERICAL ANALYSIS OF WIND EFFECT ON HIGH-DENSITY BUILDING AERAS
NUMERICAL ANALYSIS OF WIND EFFECT ON HIGH-DENSITY BUILDING AERAS Bin ZHAO, Ying LI, Xianting LI and Qisen YAN Department of Thermal Engineering, Tsinghua University Beijing, 100084, P.R. China ABSTRACT
Development of a Maxwell Equation Solver for Application to Two Fluid Plasma Models. C. Aberle, A. Hakim, and U. Shumlak
Development of a Maxwell Equation Solver for Application to Two Fluid Plasma Models C. Aberle, A. Hakim, and U. Shumlak Aerospace and Astronautics University of Washington, Seattle American Physical Society