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- 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. This encompasses
both short and long term archiving. See also ccsm_archive or
l_archive.
- ARCH - machine architecture, set in env_mach.
- BATCH - machine batch system, set in env_mach.
- branch - a specific RUN_TYPE that starts the model from
a complete restart set from a previous run.
- build script - The C-shell scripts which builds the CCSM.
In the CCSM3 distribution, this script is created by configure for a
specific machine.
- CASE - experiment or case name.
- ccsm_archive - a script that carries out short term archiving
of model output. See also archive.
- CASEROOT - full path to the scripts directory (often
this is $CCSMROOT/scripts/$CASE).
- CCSMROOT - full path to the top directory of the source
code release.
- COMP_ - Defines a specific CCSM component.
There are five CCSM components, ATM, LND, ICE, OCN, CPL which are
set in env_conf. This parameter is resolved in CCSM script generation.
- component - Each CCSM model (except for the coupler) is represented
by at least three CCSM components. The CCSM components are
are cam, latm, datm, xatm, clm, dlnd, xlnd, csim, dice, xice, pop,
docn, xocn, cpl.
- component set - A unique set of CCSM3 component combinations.
Often designated by a single letter like A, B, F, G, M, or X.
- CONTINUE_RUN - Sets the run type. A run is either a
continue run or it will be a RUN_TYPE run. See RUN_TYPE
- Delay Mode - Runs of CCSM where the ocean model starts on
the second day of the run. This is the default way of starting up for
startup and hybrid runs.
- DIN_LOC_ROOT - full path to the inputdata directory.
- DOUT_S - logical that turns on short term archiving.
- DOUT_S_ROOT - full path to the short term archival
directory. See also archive and ccsm_archive.
- DOUT_L - logical that turns on long term archiving.
- DOUT_S_ROOT - full path to the long term archival
directory on the mass store.
- EXEROOT - full path to the top directory where CCSM is
going to run.
- GRID - overall CCSM grid combination. Set in env_conf. GRID
is a resolved parameter in script generation.
- hybrid - a specific RUN_TYPE that starts the model from
restart and initial datafiles from previous runs (hybrid mode).
Can also refer to combined MPI/OpenMP parallelization paradigm (hybrid parallel).
- l_archive - See l_archive script.
- l_archive script - the long term archiver script. a phase of
the CCSM production process in which model output is moved from local disk
to the local long-term storage system. The l_archive is
$CASE.$MACH.l_archive.
- MACH - machine name, typically blackforest, seaborg,
moon, etc.
- model - There are are five in CCSM3: atmosphere, land,
sea-ice, ocean, and coupler. See also component.
See also component or component set.
- NTASK_ - the number of MPI tasks for each model, set
in the env_mach script.
- NTHRD_ - the number of OpenMP threads for each MPI task
for each model. Set in the env_mach script.
- OS - local operating system, typically AIX, IRIX64,
etc.
- resolution - The grid, see also GRID
- resolved scripts - Scripts that are generated for
a specific configuration. Configuration settings that are resolved
include resolution (grid), components, RUN_TYPE, and machine. If
any of these items is changed, new scripts must be generated.
- RESUBMIT - an integer flag in env_run. If it's greater
than zero, the run will be resubmitted after completion and the flag will
be decremented.
- RUN_TYPE - Sets the initialization type for the given case. This variable
should not be confused with CONTINUE_RUN which is a flag which
determines whether the given case is restarted or not. This is set
in env_conf and is a resolved variable in the generation of
scripts. RUN_TYPE can have values of STARTUP, BRANCH, or HYBRID.
The initial run is executed when CONTINUE_RUN is FALSE. If
CONTINUE_RUN is TRUE, then the run operates in continue mode. See
CONTINUE_RUN.
- run script - The C-shell scripts which runs the CCSM.
In the CCSM3 distribution, this script is created by configure for a
specific machine.
- sandbox - A users working directory. This term is typically
used when referring to a users local copy of a version of CCSM under
development. A shared source code area is NOT a sandbox.
- script or scripts - The term script refers to two
different things in CCSM.
First, there are scripts that are used to generate files that will run
CCSM. These are things like create_newcase, configure, and files that
exist in the ccsm_utils directory. Second, scripts also refer to
the files that build, run, and archive CCSM. These are also called run
scripts. Those files are usually named $CASE.$MACH.[build/run/l_archive]
In the most sense, CCSM scripts generate CCSM run scripts.
- script or scripts directory - The directory named scripts
in the ccsm3 directory. Scripts required to create a CCSM3 case are
here. Typically, CCSM3 run scripts and cases are also located in this
directory.
- SITE - location, typically NCAR, LANL, ORNL, NERSC,
etc. The env_mach script sets this automatically.
- startup - a specific RUN_TYPE that starts the model from some
arbitrary initial conditions.
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