n1850.ne30_tn14.hybrid_fatessp.20241219

[adagj]

Purpose:
A continuation of n1850.ne30_tn14.hybrid_fatessp.20241204 starting from year 71.
n1850.ne30_tn14.hybrid_fatessp.20241219 is identical to n1850.ne30_tn14.hybrid_fatessp.20241204, except without aerosol history and areocom turned on. The simulation will run over Christmas.

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Description:

• To get the code

git clone https://github.com/NorESMhub/NorESM.git
cd NorESM
git checkout noresm2_5_alpha08d
./bin/git-fleximod update

NOTE: a memory leak is present in the run and hits agains the node limit when running past 11 years.
See memory leak in n1850 case NorESM#550

• create_newcase command

./create_newcase --case /cluster/projects/nn9560k/adagj/cases-noresm2.5/n1850.ne30_tn14.hybrid_fatessp.20241219 --compset 1850_CAM70%LT%NORESM%CAMoslo_CLM60%FATES-SP_CICE_BLOM%ECO_MOSART_DGLC%NOEVOLVE_SWAV_SESP --res ne30pg3_tn14 --project nn9039k --run-unsupported --mach betzy

• user_nl_cam

use_aerocom = .false.
interpolate_nlat   = 192
interpolate_nlon   = 288
interpolate_output = .true.
history_aerosol = .false.
zmconv_c0_lnd  =  0.0075D0
zmconv_c0_ocn  =  0.0300D0
zmconv_ke =  5.0E-6
zmconv_ke_lnd =  1.0E-5
clim_modal_aero_top_press =  1.D-4
bndtvg = '/cluster/shared/noresm/inputdata/atm/cam/ggas/noaamisc.r8.nc'

• user_nl_clm
  Add the following to user_nl_clm

fates_paramfile='/cluster/work/users/rosief/git/NorESM_MEGAN_test/components/clm/src/fates/parameter_files/fates_params_megan_twostream.nc'
z0param_method='ZengWang2007'

• xmlchange commands

./xmlchange NTASKS=1920
./xmlchange NTASKS_OCN=256
./xmlchange ROOTPE=0
./xmlchange ROOTPE_OCN=1920
./xmlchange BLOM_VCOORD=cntiso_hybrid,BLOM_TURBULENT_CLOSURE=
./xmlchange RUN_TYPE=hybrid
./xmlchange RUN_REFCASE=n1850.ne30_tn14.hybrid_fatessp.20241204
./xmlchange RUN_REFDATE=0071-01-01
./xmlchange GET_REFCASE=FALSE
./xmlchange STOP_OPTION=nyears
./xmlchange STOP_N=7
./xmlchange REST_N=1
./xmlchange REST_OPTION=nyears
./xmlchange RESUBMIT=20
./xmlchange --subgroup case.run JOB_WALLCLOCK_TIME=48:00:00
./xmlchange --subgroup case.st_archive JOB_WALLCLOCK_TIME=06:00:00

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Compset long name
1850_CAM70%LT%NORESM%CAMoslo_CLM60%FATES-SP_CICE_BLOM%ECO_MOSART_DGLC%NOEVOLVE_SWAV_SESP

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Model grid long name
a%ne30np4.pg3_l%ne30pg4.pg3_oi%tnx1v4_r%r05_w%null_z%null_g%gris4_m%tnx1v4

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Case directory:

• Locally on betzy (if still available): /cluster/projects/nn9560k/adagj/cases-noresm2.5/n1850.ne30_tn14.hybrid_fatessp.20241219

• On NIRD: /datalake/NS9560K/noresm3/cases/n1850.ne30_tn14.hybrid_fatessp.20241219

• On github:
  https://github.com/NorESMhub/noresm_simulations/tree/$CASE

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Code version on github (either NorESMhub or user's fork):

• On github: https://github.com/NorESMhub/noresm/tree/<code_version>
• https://github.com/username/noresm/tree/<code_version>

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Diagnostics:

• Ocean/sea ice/ hamocc
• Atmosphere, years 1-7

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Output:

• Raw output on nird (if still available): /datalake/NS9560K/noresm3/cases/n1850.ne30_tn14.hybrid_fatessp.20241219
• CAM Climos:

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Contacts:
@adagj

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Extra details:

[oyvindseland]

I compared the timing and the version without additional output and additional diagnostics calculations improved the throughput with 1+ year pr day. From 6.5-7.1 years pr day to 7.8-8.2 years pr day, so most of the tuning should probably be done without the additional output.