15 Glossary

• archive - a phase of the CCSM production process in which model output is moved from the executable directory to a local disk before being saved to the local long-term storage system. See also ccsm_archive.
• $ARCH - local hardware architecture, typically IBM, SGI, CPQ, etc.
• $ARCROOT - full path to the archival directory. See also archive and ccsm_archive.
• $CASE - experiment or case name.
• ccsm_archive - a script that archives model output. See also archive.
• ccsm_joe - a CASE-dependent CCSM resource file containing the environment variable values used during the CCSM run. ccsm_joe is written by the main run script each time the script is executed. Used as a debugging tool and resource file.
• $CSMDATA - full path to the inputdata directory.
• $CSMEXE - full path to the top directory where CCSM is going to run.
• $CSMROOT - full path to the top directory of the source code release.
• harvester - a phase of the CCSM production process in which model output is moved from local disk to the local long-term storage system. The harvester script is named $SCRIPTS/$CASE.har.
• $MACH - machine name, typically blackforest, seaborg, nirvana, etc.
• main run script - The C-shell scripts which runs the CCSM. In the CCSM2.0 distribution, the example run script is $SCRIPTS/test.a1.run.
• $MODELS - always ``atm lnd ice ocn cpl'' currently.
• $NTASK - the number of MPI tasks for each model, set in the main run script.
• $NTHRD - the number of OpenMP threads for each MPI task for each model. Set in the main run script.
• $OS - local operating system, typically AIX, IRIX64, etc.
• $RUNTYPE - environment variable set in the main run script to describe the type of the run, can be startup, branch, hybrid, or continue.
• $SCRIPTS - full path to the scripts directory (often this is $CSMROOT/scripts).
• $SETUPS - the version of the models to be used in the main run script. typically cpl, lnd/dlnd, ice/dice, ocn/docn and atm/datm/latm.
• $SITE - location, typically ncar, lanl, nersc, etc. The main run script attempts to set this automatically based on known site. $SITE is used by the Gnu Makefile to enable site specific commands.
• test.a1.har - the harvester script called from the main run script. See also archive and harvester.
• test.a1.run - the name of the main run script in the example test.a1 case.