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Spectral element half degree CAM running issue


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<strong>Hello,</strong>

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<strong>I want to run a CAM5 model with spectral element dynamical core of hgrid ne60np4.</strong>

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<strong>Following is my configuration code.<br /><br /></strong>
$CAMCFG/configure -fc_type pgi -fc mpif90 -cc mpicc -dyn se -hgrid ne60np4 -spmd-ntasks48-phys cam5 -chem none  -nosmp-test
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<strong>I got the following error while running the CAM model<br /><br /></strong>
 nstep, te        1                      -Inf   0.33204137999815559E+10                       NaN                      -Inf *** ZM_CONV: IENTROPY: Failed and about to exit, info follows ****ZM_CONV: IENTROPY. Details: call#,lchnk,icol= 1****   1 lat:  68.36 lon: 171.35 P(mb)=    NaN Tfg(K)=    NaN qt(g/kg) =    NaN qst(g/kg) =    NaN, s(J/kg) =    NaN(shr_sys_abort) ERROR: **** ZM_CONV IENTROPY: Tmix did not converge ****(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping
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<strong><span class="s1"><br /></span></strong>

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<strong><span class="s1">Hence, I included </span><span style="color: #d53bd3; font-variant-ligatures: no-common-ligatures;">state_debug_checks = .true. </span>(to know if the issues are really with zm_convection) in build-namelist while runnning CAM which gives the following error.</strong>

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<strong> </strong>
WSHIST: writing time sample   0 to h-file 1 DATE=2000/01/01 NCSEC=     0  WSHIST: nhfil(            1 )=camrun.cam.h0.2000-01-01-00000.nc Opening netcdf history file camrun.cam.h0.2000-01-01-00000.nc Opened file camrun.cam.h0.2000-01-01-00000.nc to write       524288 H_DEFINE: Successfully opened netcdf file nstep, te        1                      -Inf   0.33204137999815559E+10                       NaN                      -Inf ERROR: shr_assert_in_domain: state%ps has invalid value                       NaN  at location:             1 Expected value to be a number.(shr_sys_abort) ERROR: NaN produced in physics_state by package before tphysbc (dycore?(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping ERROR: shr_assert_in_domain: state%ps has invalid value                       NaN  at location:             1
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<strong><span class="s1"><br /></span></strong>

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<strong>Please help to solve this issue.</strong>

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<strong>Thanks,</strong>

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<strong>Veeramanikandan</strong>
 

rneale

Rich Neale
CAM Project Scientist
Staff member
SE at ne60 is not a supported version and I suspect that the initial files are very out of date.The ientropy error is always a symptom of other things going wrong in the model.What possible approach is to reduce the time step to something like 5 minutes for a few days to see if it continues.
 

rneale

Rich Neale
CAM Project Scientist
Staff member
SE at ne60 is not a supported version and I suspect that the initial files are very out of date.The ientropy error is always a symptom of other things going wrong in the model.What possible approach is to reduce the time step to something like 5 minutes for a few days to see if it continues.
 

rneale

Rich Neale
CAM Project Scientist
Staff member
I think the best thing to do would be to test an ne30 run to see if you get the same problems. We have more experience with that confguration.
 

rneale

Rich Neale
CAM Project Scientist
Staff member
I think the best thing to do would be to test an ne30 run to see if you get the same problems. We have more experience with that confguration.
 
Hi Richard Neale,ne30 is running well. There are no issues with ne30. In ne60, while checking the domain (difference for lat, lon and area), checking ocn/ice domains is passed.checking atm/lnd domains is passed.checking atm/ice domains is failed (Only area difference).checking atm/ocn is failed (Only area difference)Please check the log file attached here.Domain check data is displayed from page no. 79 and error from page no. 80.- Veeramanikandan
 
Hi Richard Neale,ne30 is running well. There are no issues with ne30. In ne60, while checking the domain (difference for lat, lon and area), checking ocn/ice domains is passed.checking atm/lnd domains is passed.checking atm/ice domains is failed (Only area difference).checking atm/ocn is failed (Only area difference)Please check the log file attached here.Domain check data is displayed from page no. 79 and error from page no. 80.- Veeramanikandan
 
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