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Contents
Contents
CCSM2.0 User's Guide
Lawrence Buja and Tony Craig
www.cesm.ucar.edu
Build date: June 18, 2002
CVS tag
$Name: doc_a020618 $
Contents
1 Introduction
1.1 The CCSM component models
1.2 The component models: CAM, POP, CSIM, CLM
1.3 Supported resolutions, configurations and platforms
2 CCSM2.0 Quick Start Guide
2.1 What is needed to run CCSM2?
2.2 Downloading and untarring the CCSM2.0 distribution
2.3 The CCSM source code
2.4 Input datasets
2.5 Building the CCSM
2.6 Running the CCSM
2.7 CCSM output data
2.7.1 Output log files
2.7.2 Binary history and restart output data
3 The CCSM Scripts
3.1 The CCSM Run Script: test.a1.run
3.1.1 Set batch system options
3.1.2 Define the common run environment
3.1.3 Select multi-processing and resolution specs
3.1.4 Run the setup script for each component
3.1.5 Run the CCSM integration
3.1.6 Archive and harvest
3.1.7 Resubmit
3.2 Sample Component Setup Script: cpl.setup.csh
3.2.1 Document the setup script
3.2.2 Set local component script variables
3.2.3 Define and position the input datasets
3.2.4 Write the input namelist
3.2.5 Build the component executable
4 Building the CCSM
4.1 The CCSM directory structure
4.2 $CSMBLD contents
4.3 $EXEDIR structure
4.4 Input data positioning
4.5 Building the model interactively
5 Running the CCSM
5.1 Start up
5.1.1 Running a simple test case of the fully coupled model on the NCAR IBM machine, blackforest
5.1.2 Changing the configuration
5.1.3 Changing the RUNTYPE
5.1.4 Running on a new machine
5.1.5 Getting into production
5.2 What is the ccsm_joe file?
5.3 How does auto-RESUBMIT work?
5.3.1 Runaway jobs
5.4 Batch queuing challenges
5.5 Modifying source code
5.6 CCSM Data Management
5.7 What is harvesting doing?
5.8 Monitoring the integration
5.9 Data processing
5.10 Comparing output to NCAR controls
6 Testing the CCSM
6.1 Exact restart test
7 Common Aborts, Errors, Debugging, and Performance Issues
7.1 Common aborts and errors
7.1.1 Component model has trouble building
7.1.2 Model won't continue due to restart problem
7.1.3 Ocean model stops due to ocean non-convergence or time-stepping problem
7.1.4 Ice Model stops due to ice mpdata transport instability
7.2 Debugging
7.3 Performance issues
8 Supporting Scripts:
8.1 Experiment dependent scripts
8.2 Scripts in the tools directory
9 The Graphical User Interface: ccsm_gui
10 The Atmosphere Setup Script: atm.setup.csh
10.1 Document the atmosphere setup script
10.2 Define and position the atmosphere input datasets
10.3 Define resolution dependent parameters
10.4 Write the atmosphere input namelist
10.5 Create the atmosphere executable
11 The Ocean Model Setup Script: ocn.setup.csh
11.1 Document the ocean setup script
11.2 Set code location and resolution dependencies
11.3 Position initial files
11.4 Build the executable
11.5 Parse the date variables
11.6 Modify pop_in
11.7 Define the ocean input datasets
11.8 Position the ocean input datasets
12 The Sea-Ice Model Setup Script: ice.setup.csh
12.1 Document the sea-ice setup script
12.2 Set the sea-ice model configuration flags
12.3 Acquire the sea-ice initial and boundary files
12.4 Create the sea-ice namelist input file
12.5 Build the sea-ice model executable
13 The Land Model Setup Script: lnd.setup.csh
13.1 Document the land setup script
13.2 Set the land model configuration flags
13.3 Create the namelist input file
13.4 Create the land model executable
14 The Data Model Setup Scripts: d***.setup.csh
14.1 Create the namelist input file
15 Glossary
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