Main menu

Navigation

Spectral element half degree CAM running issue

5 posts / 0 new
Last post
veera.atmsc@...
Spectral element half degree CAM running issue
Hello,
I want to run a CAM5 model with spectral element dynamical core of hgrid ne60np4.
Following is my configuration code.

                $CAMCFG/configure -fc_type pgi -fc mpif90 -cc mpicc -dyn se -hgrid ne60np4 -spmd-ntasks48-phys cam5 -chem none  -nosmp-test
 
I got the following error while running the CAM model

 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

Hence, I included state_debug_checks = .true. (to know if the issues are really with zm_convection) in build-namelist while runnning CAM which gives the following error.
 
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

Please help to solve this issue.
 
Thanks,
Veeramanikandan
rneale

SE at ne60 is not a supported version and I suspect that the initial files are very out of date.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.

Richard Neale CESM AMWG Co-chair eval(unescape('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%72%6e%65%61%6c%65%40%75%63%61%72%2e%65%64%75%22%20%63%6c%61%73%73%3d%22%62%62%2d%65%6d%61%69%6c%22%3e%72%6e%65%61%6c%65%40%75%63%61%72%2e%65%64%75%3c%2f%61%3e%27%29%3b')) http://www.cgd.ucar.edu/cms/rneale Atmosphere Modeling and Predictability Section, AMP, NCAR Tel (303) 497-1380 Fax (303) 497-1324

veera.atmsc@...

Hi Richard Neale,

The simulation with reduced timestep to 5 min is also giving the same error.

-Veeramanikandan

rneale

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.

Richard Neale CESM AMWG Co-chair eval(unescape('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%72%6e%65%61%6c%65%40%75%63%61%72%2e%65%64%75%22%20%63%6c%61%73%73%3d%22%62%62%2d%65%6d%61%69%6c%22%3e%72%6e%65%61%6c%65%40%75%63%61%72%2e%65%64%75%3c%2f%61%3e%27%29%3b')) http://www.cgd.ucar.edu/cms/rneale Atmosphere Modeling and Predictability Section, AMP, NCAR Tel (303) 497-1380 Fax (303) 497-1324

veera.atmsc@...

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

Attachment: 
Log in or register to post comments

Who's new

  • siyuan
  • yuenai@...
  • petisascom@...
  • xiaoning.wu.1@...
  • nburls@...