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Please follow the steps below when wanting to run When creating the regionally refined model (RRM) CONUS grid in ACMEcase, please refer to the steps in this article.

Step-by-step guide

1. Check-out

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1. ACME

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1. :

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1. Checkout the tangq/cam/RRM branch - see Development Quick StartGuide for details.

1. Create and build a new case from the scripts directory:

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1. Suggested syntax:
   

   1. $ ./create_newcase -res conusx4v1_conusx4v1 -case $CASENAME -compset $COMPSET -mach $MACH -project $PROJECT
      ACME v0 – an example for L30: $ ./create_newcase -case

   $CASENAME -compset FC5 -mach (your-machine-name-here)

   1. f1850c5_conusx4v1 -project 150001 -compset F1850C5 -res conusx4v1_conusx4v1 -mach skybridge
      ACME v1 – an example for L72: $ ./create_newcase -case fFC5AV1C-04P2_conusx4v1 -project 150001 -compset FC5AV1C-04P2 -res conusx4v1_conusx4v1 -mach skybridge

2. Edit env_mach_pes.xml as needed.  For RedskySandia's skybridge machine, using 200 800 cores and 1 thread for each component runs at 0X.25 YZ simulated years per day.
3. Edit env_run.xml . 
   
   1. For a 5 year free-run on Redsky, (throwing out 1 year)
      
      1. set RUN_STARTDATE equal to 0001-01-01
      2. set STOP_OPTION equal to nmonths
      3. set STOP_N equal to 12
      4. set REST_N equal to 6
      5. set RESUBMIT equal to 6
      6. set ATM_NCPL equal to 96
   as needed to specify the run-length. 
4. Set-up and build the case.  
   $ ./cesm_setup   
   $ ./$CASENAME.build  build  
    (When building a case for the first time, the script will look for the boundary and initial condition files .   The RRM team plans to push that data to which are located on the ACME server, /wiki/spaces/WORKFLOW/pages/7998629.  Contact the RRM team for those files until the data is there.  This page will be updated to reflect that change.)
5. Edit user_nl_clm to include spun-up land initial condition file.
   ::::::::::::::
   user_nl_clm
   ::::::::::::::
   finidat = '/projects/ccsm/inputdata/lnd/clm2/initdata/clmi.conusx4v1.2000-01-01_c141106.nc'
Edit user_nl_cam to include changes to the se-dycore.
::::::::::::::
user_nl_cam
::::::::::::::
! Convection:
cldfrc_rhminl          = 0.91         
cldfrc_dp1              = 0.025            
zmconv_c0_lnd     = 0.0035
zmconv_c0_ocn    = 0.0035
zmconv_tau           = 3000    
! Aerosols:
soil_erod_file  = '/your/path/to/inputdata/atm/cam/dst/dst_1.9x2.5_c090203.nc'
dust_emis_fact  = 1.05D0    
! Dycore grid specific settings (Timesteps and viscosity):
se_nsplit     = 4 
hypervis_subcycle= 7
nu         = 8.0e-8
nu_div         = 20.0e-8
nu_p         = 8.0e-8
hypervis_scaling= 3.2
se_ne        = 0
mesh_file       = '/path/to/gridfile/conusx4v1.g'

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1. data server.  See ACME Input Data Repository.)
2. Edit the namelist files (i.e., user_nl_cam) for user-specified output settings.  The recommended settings (as of 02 Jul 2015 ) are to follow the ne120 tunings for v0.3 listed in ne120 user_nl_cam.   The user should change zmconv_tau from 3000 to 3600, an ne30 setting, when running RRM.
3. Run your $CASENAME
4. Report the machine upon which you successfully ran the RRM configuration.  (/wiki/spaces/ED/pages/1867951 for a list of machines)