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CESM122 error with SIGSEGV, segmentation fault occurred

Nithish

Nithish_Sriramoju
New Member
Hello everyone,

I'm using the CESM 122 version for my work. I'm running a 100-year simulation with user-defined COMPSET "2000_CAM5_CLM45_CICE_DOCN%SOM_RTM_SGLC_SWAV" and setting CCSM_CO2_PPMV=400. My simulation ran for 51 years, then suddenly it halted, prompting an error saying "forrtl: severe (174): SIGSEGV, segmentation fault occurred". Then I restarted it with CONTINUE_RUN="TRUE", but the issue persists after running for a year, and I'm unable to resolve this issue. I read other threads with the same error, for which most suggested answers are changing DEBUG to True (but I don't want to restart the whole experiment again, as it is halfway through) and checking input data (model ran for 52 years, so input data is OK).

Any insights on this issue will be greatly appreciated!

I have attached the CESM logfile and atm logfile for reference, as cam and atm .f90 files are mentioned in error.

Thank you.
 

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  • cesm.log.251106-020448.txt
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  • atm.log.251106-020448.txt
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slevis

Moderator
Staff member
You mention that "input data is OK" which makes me wonder whether you are using custom input data rather than defaults. Also did you make changes to the code?
 
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