accessom2.nml

&accessom2_nml
    log_level = 'DEBUG'

    ! ice_ocean_timestep defines the MOM baroclinic timestep, CICE thermodynamic timestep
    ! and MOM-CICE coupling interval, in seconds.
    ! ice_ocean_timestep is normally a factor of the JRA55-do forcing period of 3hr = 10800s,
    ! e.g. one of 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300,
    ! 360, 400, 432, 450, 540, 600, 675, 720 or 900 seconds.
    ! The default 300s timestep is stable for a startup from rest, but very slow.
    ! After the first few months of equilibration you should increase the timestep 
    ! to 450s and then to 540s (or even 600s) for improved throughput, but you
    ! may need to decrease the timestep occasionally to avoid instability.
    ice_ocean_timestep = 300
&end

&date_manager_nml
    forcing_start_date = '1958-01-01T00:00:00'
    forcing_end_date = '2019-01-01T00:00:00'

    ! Runtime for a single segment/job/submit, format is years, months, seconds,
    ! two of which must be zero.
    restart_period = 0, 3, 0
&end