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med_methods_mod.F90:2561 ERROR: 1 nans found in Faxx_taux

Yuan Sun

Yuan Sun
Member
Hi all,

I am running a F composet (
2000_CAM60_CLM51%SP_CICE%PRES_DOCN%DOM_SROF_SGLC_SWAV
) simulation . When I ./xmlchange NTASKS=1280, the model stopped quickly with an error from PET0088.ESMF_LogFile:

/mnt/lustre/a2fs-work2/work/n02/n02/yuansun/cesm/my_cesm_sandbox_2.3lcz/components/cmeps/cime_config/../mediator/med_methods_mod.F90:2561 ERROR: 1 nans found in Faxx_taux
20240412 090005.558 ERROR PET0088 /mnt/lustre/a2fs-work2/work/n02/n02/yuansun/cesm/my_cesm_sandbox_2.3lcz/components/cmeps/cime_config/../mediator/med_methods_mod.F90:2561 ERROR: 1 nans found in Faxx_tauy
20240412 090005.558 ERROR PET0088 /mnt/lustre/a2fs-work2/work/n02/n02/yuansun/cesm/my_cesm_sandbox_2.3lcz/components/cmeps/cime_config/../mediator/med_methods_mod.F90:2561 ERROR: 1 nans found in Sx_u10
20240412 090005.558 ERROR PET0088 /mnt/lustre/a2fs-work2/work/n02/n02/yuansun/cesm/my_cesm_sandbox_2.3lcz/components/cmeps/cime_config/../mediator/med_methods_mod.F90:2566 ABORTING JOB
20240412 090005.558 ERROR PET0088 /mnt/lustre/a2fs-work2/work/n02/n02/yuansun/cesm/my_cesm_sandbox_2.3lcz/components/cmeps/cime_config/../mediator/med_phases_prep_atm_mod.F90:232 Failure - Passing error in return code
20240412 090005.558 ERROR PET0088 MED:src/addon/NUOPC/src/NUOPC_ModelBase.F90:2207 Failure - Passing error in return code

I also checked the CAM log. It stopped at reading the file below :
(shr_strdata_readstrm) reading file ub: /work/n02/n02/yuansun/cesm/cesm_inputdata/lnd/clm2/ndepdata/fndep_clm_hist_b.e21.BWHIST.f09_g17.CMIP6-historical-WACCM.ensmean_1849-2015_monthly_0.9x1.25_c180926.nc 1813
FV subcycling - nv, n2, nsplit, dt = 2 1 4 225.00000000000000
Divergence damping: use 4th order damping
nstep, te 0 0.25979474672344298E+10 0.25979474672344298E+10 -0.00000000000000000E+00 0.98517053779670925E+05 0.22552395239472389E+03
chem_surfvals_set: ncdate= 20000101 co2vmr= 3.7037219767789082E-004
chem_surfvals_set: ch4vmr= 1.7796140990627879E-006 n2ovmr= 3.1559961319861702E-007 f11vmr= 6.9287665509229100E-010 f12vmr= 5.3898092182081726E-010
READ_NEXT_TRCDATA emiss_anthro

When I tried with ./xmlchange NTASKS=128, the case ran without error but was super slow. Do I need to consider computing balance issues? When I set NTASKS_ATM= 1280 and NTASKS _LND=128, the simulations ran for several minutes but stopped again. I found several suggestion for B compset, but I am still not clear about the F comspet setting (PE layouts).

Thanks for any comments.

Best
Yuan
 

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  • PET0088.ESMF_LogFile.txt
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jedwards

CSEG and Liaisons
Staff member
You appear to be using the fv dycore, we are focused on the se dycore in the cesm2.3 development and, although it should work, the
fv dycore has not been fully tested with these tunings - can you use the se dycore instead?
 

Yuan Sun

Yuan Sun
Member
You appear to be using the fv dycore, we are focused on the se dycore in the cesm2.3 development and, although it should work, the
fv dycore has not been fully tested with these tunings - can you use the se dycore instead?
Dear Jedwards,

Thanks for your response. I would have a try! :)

Best,
Yuan
 
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