Running the CLM requires a suite of UNIX utilities and programs and you should make sure you have all of these available before trying to go forward with using it. If you are missing one of these you should contact the systems administrator for the machine you wish to run on and make sure they are installed.
|List of utilities required for CESM in the "CESM1.2.0 Software/Operating System Prerequisites" section in http://www.cesm.ucar.edu/models/cesm1.2//cesm/doc/usersguide/book1.html|
|UNIX bash shell (for some of the CLM tools scripts)|
|NCL (for some of the offline tools for creating/modifying CLM input datasets see Chapter 2 for more information on NCL)|
|Python (optional, needed for PTCLM)|
|xsltproc, docbook and docbook utilities (optional, needed to build the Users-Guide)|
|protex and latex2html (optional, needed to build the Code-Reference Guide)|