CTSM now by default uses the NUOPC based CMEPS driver!
MESH Files: Mesh files to describe grids are new in both the driver namelist and for example in any streams files. Full ESMF Library is used: The full ESMF Library is used and required to be built in order to run the model. Single Point cases: Single point cases can now set their location using PTS_LAT and PTS_LON.
Domain files are no longer used. And mapping for regriding is created on the fly rather than using fixed mapping files in almost all cases. Runoff mapping files still need to be generated offline.
rpointer.drv becomes rpointer.cpl cpl.log.* files get's split into med.log.* and drv.log.* user_datm.streams.txt.* file changes goes into the user_nl_datm_streams files datm.streams.txt.* files are all in one file called datm.streams.xml
DATM_CLMNCEP_YR_* variables change to DATM_YR_*
ESMF_AWARE_THREADING --- ESMF is aware of threading (can have differing number of threads in components) CREATE_ESMF_PET_FILES -- Create output log files from ESMF for each Processor (PET) ESMF_VERBOSITY_LEVEL --- Verbosity level for ESMF logging ESMF_PROFILING_LEVEL --- Verbosity level for ESMF profiling
nuopc.runseq is a text file that determines how the driver operates. You can change the operation by having an updated copy in your case directory.