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Test Report: F Compset (June 14, 2018)
This is a test of a Community Earth System Model (CESM) F compset, which includes active atmosphere (Community Atmosphere Model with version 4.0 physics), active land model (Community Land Model version 5.0), prescribed sea ice (CICE), and a data ocean driven by the CESM NUOPC Driver with the Community Mediator for Earth Predictive Systems (CMEPS). All components share the same 4x5 degree global grid. The purpose of the test is to demonstrate correct data flow of coupling fields through the Mediator. Validation was performed by comparing history output of CAM and CLM for a 5 timestep run to the same run with the previously validated Model Coupling Toolkit (MCT-) based system.
| Repository | Tag |
|---|---|
| UFSCOMP (Umbrella repository) | cesm-cmeps-v0.2 |
| CIME | nuopc-cmeps-v0.6 |
| CAM | nuopc_cap_n11_cam5_4_143 (subversion repository - not on GitHub) |
| CLM | nuopc_cap_n06_clm4_5_16_r253 (subversion repository - not on GitHub) |
| CICE | nuopc_cap_n06_cice5_2017120 (subversion repository - not on GitHub) |
| Name | Value |
|---|---|
| Test name | SMS_Vnuopc_Ln5.f45_f45_mg37.F2000Nuopc.cheyenne_intel.cam-nuopc_cap |
| Compset long name | 2000_CAM40_CLM50%SP_CICE%PRES_DOCN%DOM_SROF_SGLC_SWAV |
| ATM Grid | 4x5 degree global |
| LND Grid | 4x5 degree global |
| OCN Grid | 4x5 degree global |
| ICE Grid | 4x5 degree global |
$ git clone https://github.com/ESCOMP/UFSCOMP.git
$ cd UFSCOMP
$ git checkout nuopc-cmeps-v0.2
$ ./manage_externals/checkout_externals
$ cd cime/scripts
# Create and run the NUOPC test case
$ ./create_test SMS_Vnuopc_Ln5.f45_f45_mg37.F2000Nuopc.cheyenne_intel.cam-nuopc_cap
# Create and run the MCT test case
$ ./create_test SMS_Vmct_Ln5.f45_f45_mg37.F2000Nuopc.cheyenne_intel.cam-nuopc_cap
The test was performed on the NCAR Cheyenne machine. Results indicate that the MCT and NUOPC cases have roundoff level differences at the 5th timestep. This was confirmed using the nccmp tool on Cheyenne. Output from sample runs are available in the directory: /glade/scratch/dunlap/testreports/cmeps-nuopc-v0.6.