CESM Models

Known Problems in CESM1.1.1

CESM1.1.1 is now supported on machines Yellowstone and Titan. CESM1.1.1 has the flexibility to configure cases with many different combinations of component models, grids, and models settings. We are in the process of scientifically validating more resolutions and component sets, primarily targeted to CAM5 component sets. Validated CESM1.1.1 model results and diagnostics are posted under Experiments & Diagnostics.

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Component Sets (COMPSETS)

(Bugzilla 1645) Problem using compsets FSTRATMAM3 and FSTRATMAM7
(Bugzilla 1605) Incompatible initial conditions with BG1850CN at f09 resolution for both CLM and CISM.
(Bugzilla 1606) Running IAF compsets (CIAF, DIAF, GIAF) on non-NCAR machines.


(Bugzilla 1751) COSP build fails with CESM1.1.1 - work around
(Bugzilla 1629) Using the variable "fincl[12345678]lonlat" in the cam namelist causes a memory leak.
(Bugzilla 1612) WACCM compset incompatible with ESMF library.
(Bugzilla 1614) WACCM5 (WACCM with CAM5 physics) is known to crash intermittently, usually after a few months of output.
(Bugzilla 1613) FWSC compset hangs on some systems when running threaded.
(Bugzilla 1615) F compsets cannot be run with the ESMF library on.


(Bugzilla 1678) WACCM-X hits a floating point exception with threading enabled.


(Bugzilla 1740) Limitations with different coupling frequencies for different models.


(Bugzilla 1759) For CLM4.0, the RCP 6.0 and 8.5 file pftdyn for f09 and f19 was NOT correctly updated.
(Bugzilla 1630) Changes to get mkmapdata.sh working on yellowstone
(Bugzilla 1625) Problem setting a user defined initial condition file for a hybrid or branch case.
(Bugzilla 1447) The interpinic tool does not work properly for input files with multiple glacier elevation classes.
KnownBugs for CLM List of known issues for CLM.


(Bugzilla 1861) Issue using RESUBMIT option in env_run.xml when setting certain variables in user_nl_pop2
(Bugzilla 1656) With pnetcdf, POP2's daily stream file is incomplete when run is stopped mid-month
(Bugzilla 1655) CECO compset runs fail when PIO_TYPENAME = pnetcdf
Variables in the ecosys_parms_nml namelist can not be set in the user_nl_pop2 file. To fix this, copy this version of namelist_definition_pop2.xml into $CASEROOT/SourceMods/src.pop2/
In multi-instance runs, the instance number is omitted from some diagnostic output file names. To fix this, copy this version of build-namelist into $CASEROOT/SourceMods/src.pop2/
The interannual forcing (IAF) data used in ocean-only and ocean/sea-ice configurations now extends through 2009, rather than 2007 as in previous versions. The model will now cycle over the years 1948 to 2009 (a 62 year span).


The CICE history files have some incorrect history fields (albpnd, albice, albsno). These should not be used.


(Bugzilla 1611) Restarts can only happen on year boundaries.

Machines / scripts

(Bugzilla 1594) Problem and fix when running create_clone
(Bugzilla 1743) Coordination of variables EXEROOT and RUNDIR in env_build.xml and env_run.xml
(Bugzilla 1636) Problem with pleiades
(Bugzilla 1626) CESM component Makefile rebuilds all object files if any source file is modified
When running multiple instances, not all namelist files get copied to $CASEROOT/CaseDocs/. To fix this problem, copy this version of preview_namelists into $CASEROOT


The installation instructions for building the check_maps/ESMF_RegridWeightGenCheck utility used by the check_map.sh script assume you are building on bluefire, not yellowstone. On yellowstone, the needed environment variable ($ESMFMKFILE) is set automatically when you load the proper ESMF module. For example, run
$ module load esmf
$ module load esmf-6.1.1-ncdfio-uni-O
Note that this requires the intel module to be loaded already, and will build the executable using the serial (intel) compiler so you can run the utility from the yellowstone login node.
Related to the problem above, the ESMF executables referenced in gen_mapping_files/gen_ESMF_mapping_file/create_ESMF_map.sh point to a directory that does not exist. Replace that script with this version.