PALM Program control

How to set up and run the model, how to process and interpret model output....

PALM core Governing equations ATMOSPHERE Governing equations OCEAN Pressure solver Turbulence closure Discretization Boundary conditions Initialization

Additional features Atmosphere-ocean coupling Cloud microphysics Grid nesting Lagrangian cloud model (LCM) Lagrangian particle model (LPM) Land surface model (LSM) Large-scale forcing Nudging Plant canopy model (PCM) Radiation models Wind turbine model (WTM)

Technical aspects The testing procedure requires a pre-definition of specific simulation set-ups, covering the main application scenarios. A documentation of the set-ups will be provided on the Trac server, and selected PALM-4U results will be added there at the end of the project.

Model setup

• Control parameters
  • Initialization
  • Runtime

• Optional parameter packages
  • dvr graphics output
  • Lagrangian particle model
  • Land surface model
  • Nesting
  • Plant canopy model
  • Radiation model
  • Spectra output
  • Virtual flight model
  • Wind turbine model
• 'Alphabetical list of all parameters'

Model operation

• Launching a simulation (mrun, mrungui, example of minimum configuration file, Interactive mode and debugging)
• Monitoring a simulation (Monitoring batch jobs: PALM watchdog)
• Simulation chains (Initialization and restart runs)

• Debugging

User code

• Available interfaces to PALM core
• Compiling and linking of user code
• User-defined control parameters (Definition of user-defined parameters)
• User-defined domains (should be specified, no one can imagine what this means)
• User-defined data output

PALM Data I/O and visualization

(to be resorted!!)

• Input/Output files

• netCDF data output
  • Generation of a PALM netCDF file?
  • Example of a PALM netCDF data set
  • Masked data output
• Postprocessing with NCL
  • List of parameters for PALM NCL scripts
• Postprocessing with IDL
• Visualization with dvr
• Visualization with VAPOR
• Creating animations with img2video
• Creating stereo images with img2stereo

Simulation examples

!!!needs special care!!!

• Minimum set for simulating the CBL
• Topography?
• Turbulent inflow
• Ocean runs
• Coupled atmosphere-ocean runs
• Runs with large scale forcing and nudging
• Run with land surface model and coupled to the RRTMG radiation model

PALM Model Documentation

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Model description

Model formulation

...

Embedded models

...

Technical realization

• General code structure
• Particle code structure
• Topography implementation
• Parallelization and optimization
• User interface
• Model operation
• Data handling
• Code documentation with Doxygen
• Rules of documentation and naming conventions?
• Code contributions

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User manual

Steering of interactive / batch runs?

• Job control with mrun?
• Using the GUI: mrungui?
• Monitoring batch jobs: PALM watchdog
• Example of a minimum configuration file?
• Initialization and restart runs / Handling of large binary restart files
• Interactive mode and debugging?
• Optional software packages?

Model steering

• Parameters
  • Initialization
  • Runtime
  • Nesting
  • Land surface
  • Plant canopy
  • Particles
  • Radiation
  • Spectra
  • Synthetic Turbulence
  • Virtual flights
  • Wind turbine model
  • dvr graphics
  • Alphabetical list of all parameters
• User Interface
  • Interfaces
  • Parameters for user interface
  • Definition of user-defined parameters?
  • User-defined domains
  • User-defined output quantities
  • Compiling and linking
• Input/Output files
  • Palm input data standard

Steering examples for special setups

• Minimum set for simulating the CBL
• Topography?
• Turbulent inflow
• Ocean runs
• Coupled atmosphere-ocean runs
• Runs with large scale forcing and nudging
• Run with land surface model and coupled to the RRTMG radiation model

Data handling/visualization

• netCDF data output
  • Generation of a PALM netCDF file?
  • Example of a PALM netCDF data set
  • Masked data output
• Postprocessing with NCL
  • List of parameters for PALM NCL scripts
• Postprocessing with IDL
• Visualization with dvr
• Visualization with VAPOR
• Creating animations with img2video
• Creating stereo images with img2stereo

Error messages

• PALM standard code (PA****)
• User interface (UI****)
• NetCDF (NC****)

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PALM code development

• Release notes
• History of changes (2018-current)
• History of changes (2017)
• History of changes (2013-2016)
• History of changes (2009-2012)
• Rules for developers
• PALM-4U development
• Code development with eclipse
• Known bugs
• Testsuite and Testserver
• OpenACC tests

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Machine related informations

• IBM-Regatta (KISTI)
• Cray-XC40 (HLRN)
• Kyushu University Computing Center