CESM User's Guide (CESM1.2 Release Series User's Guide) (
CESM Software Engineering Group (CSEG)
Table of Contents
How To Use This Document
CESM Model Version Naming Conventions
CESM Software/Operating System Prerequisites
CESM Component Sets
Downloading the code and scripts - starting with CESM1.2.1
Obtaining new release versions of CESM - prior to CESM1.2.1
Downloading input data
Quick Start (CESM Workflow)
Creating and Setting Up A Case
How to create a new case
New Component Set Naming Convention
New Overall Model Grid Naming Convention
How to set up a case and customize the PE layout
Changing the PE layout
Multi-instance component functionality
Modifying an xml file
Cloning a case (Experts only)
How do I build my model?
User-created input data
Using the input data server
Rebuilding the model
Customizing runtime settings
Controlling starting, stopping and restarting a run
Customizing component-specific namelist settings
Controlling output data
Load balancing a case
Model timing data
Using model timing data
How do I run a case?
Setting the time limits
Submitting the run
Restarting a run
Data flow during a model run
Testing a case
Porting and Validating CESM on a new platform
Step 1: Use create_newcase with a userdefined machine name
Step 2: Enabling out-of-the box capability for your machine
Step 3: Port Validation
Use Cases and FAQs
BASICS: A basic example
BASICS: How do I set up a branch or hybrid run?
BASICS: What calendars are supported in CESM?
BASICS: How do I change processor counts and component layouts on processors?
BASICS: What are CESM xml variables and CESM environment variables?
BASICS: How do I modify the value of CESM xml variables?
BASICS: Why aren't my $CASEROOT xml variable changes working?
BASICS: How do I run multiple cases all using a single executable?
BASICS: How do I use the ESMF library and ESMF interfaces?
BASICS: Why is there file locking and how does it work?
BASICS: What are the directories and files in my case directory?
IO: What is pio?
IO: How do I use pnetcdf?
CAM: How do I customize CAM output fields?
CAM: How do I customize CAM forcings?
CAM/CLM: How do I change history file output frequency and content for CAM and CLM during a run?
CAM: How do I use B compset history output to create SST/ICE data files to drive an F compset?
POP/CICE: How are CICE and POP decompositions set and how do I override them?
POP: How do I initialize POP2 with a spun-up initial condition?
DRIVER: Is there more information about the coupler/driver implementation?
DRIVER: How do I pass in new fields between components?
EXPERTS: How do I add a new user-defined component set?
EXPERTS: How do I add a new user-defined grid?
EXPERTS: How do I carry out data assimilation using CAM and DART?
EXPERTS: How do I add a new CESM model component?
Debugging Tests That Fail
Troubleshooting job submission problems
Troubleshooting runtime problems
Additional Troubleshooting Information
List of Tables
Recommmended Software Package Versions by Machine
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