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The CICE6 ice_in_template located in the ufs-s2s-model repository parm subdirectory should be used as the base namelist. Note the CICE6 includes a new icefields namelist for the floe-size distribution icefields_fsd_nml.

Values in the ice_in_template which are set using the regression test scripts are:

year_init      = YEAR_INIT
istep0         = ISTEP0
dt             = DT_CICE
runtype        = 'RUNTYPE'
runid          = 'RUNID'
restart_ext    = RESTART_EXT
use_restart_time = USE_RESTART_TIME
dumpfreq       = 'DUMPFREQ'
dumpfreq_n     = DUMPFREQ_N
hist_avg       = CICE_HIST_AVG
grid_file    = 'CICEGRID'
kmt_file     = 'CICEMASK'
update_ocn_f    = FRAZIL_FWSALT

In CICE6, model run-time resources can be set at run time using the following settings in domain_nml:

processor_shape   = 'slenderX2'
nprocs            = NPROC_ICE
nx_global         = NX_GLB
ny_global         = NY_GLB
block_size_x      = BLCKX
block_size_y      = BLCKY
max_blocks        = -1

where:

np2=NPROC_ICE/2
BLCKX=NX_GLB/np2
BLCKY=NY_GLB/2

and NX_GLB and NY_GLB are the domain size in the x and y directions.