CESM2 Supported Release Tags and Notes


CESM2.0.0 Release Notes

Please see the What's New in CESM2 for information pertaining to the CESM2.0.0 release tag.

CESM2.0.0 Known Issues

These are issues known by CSEG at the time of release. Users are encouraged to also participate in the DiscussCESM Forums in order to receive notifications regarding fixes as well as posting additional issues and questions.


Component Brief Description Github Issue Details Workaround
CIME Model does not support PIO_NETCDF_FORMAT=64bit_data 2646 The 64bit_data output format is only supported when PIO_TYPENAME is pnetcdf.
In your $CASEROOT, edit file Macros.make and replace
CPPDEFS := $(CPPDEFS)  -D$(OS)
with
CPPDEFS := $(CPPDEFS)  -D$(OS) -D_PNETCDF
then
case.build --clean-all ; case.build
CIME Component ww3 issues error 2649 WAVEWATCH III ERROR IN W3IOGR : ERROR IN OPENING FILE
The first time you run the ww3 buildnml script on a new system the data must be staged, but the staging step happens after the buildnml step. Simply submitting the case again will resolve the problem.
CIME Problem with GET_REFCASE and RUN_TYPE setting combinations 2651 If a case using XML variable RUN_TYPE='hybrid' or 'restart' has XML variable GET_REFCASE set to TRUE and the user changes this value to FALSE, the model will continue to act as if GET_REFCASE=TRUE.
Delete the file $CASEROOT/Buildconf/refcase.input_data_list
CLM Using multidriver option with CLM 389 Using the multidriver option with the clm component requires a source code modification.
The modification is described in CTSM Github issue link.
Component Brief Description Github Issue Details Workaround