What are The New Configuration Options?

Describe any changes made to build system:

Change directory structure to match CCSM.
Add BGP target.
Add choice between ESMF and MCT frameworks.
Start removing #ifdef and directives that supported Cray-X1 Phoenix as now decommissioned.
Make default of maxpatch_pft=numpft+1 instead of 4 for all configurations.
By default turn on CLAMP when either CN or CASA is enabled
New SNICAR_FRC, CARBON_AERO, and C13 CPP ifdef tokens.

New options added to configure: More information on options to clm configure are given in the Section called More information on the CLM configure script in Chapter 1.

Option: -comp_intf <name>>

Description: Component interface to use (ESMF or MCT) (default MCT)

Option: -nofire

Description: Turn off wildfires for bgc setting of CN (default includes fire for CN)

Option: -pio <name>

Description: Switch enables building with Parallel I/O library. [on | off] (default is on)

Option: -snicar_frc <name>

Description: Turn on SNICAR radiative forcing calculation. [on | off] (default is off)

More information on options to clm configure are given in the Section called More information on the CLM configure script in Chapter 1.