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imp_sol: step failed to converge error, FCts2nudged

Will Smith

Will Smith
New Member
Hi all,

I am having an issue while running the release-CESM2.2.0, with the CAM tag set to cam_cesm2_2_rel_09. My configuration uses the FCts2nudged compset on a resolution of ne30_ne30_mg17. However, during the run, I encountered a imp_sol: step failed to converge error in the cesm.log file. This error appears to be isolated to cesm.log, as other log files do not show any corresponding issues.

Initially, I suspected this might be due to a character length issue, so I made some adjustments below; however, the error persists despite these changes.
from: write(iulog,'('' imp_sol: step failed to converge @ (lchnk,vctrpos,nstep,dt,time) = '',3i8,1p,2g15.7)') &
lchnk,ofl+i-1,nstep,dt(i),interval_done+dt(i)

to: write(iulog,'('' imp_sol: step failed to converge @ (lchnk,vctrpos,nstep,dt,time) = '' &
,3i8,1p,2g15.7)') &
lchnk, ofl+i-1, nstep, dt(i), interval_done+dt(i)

I have attached the log files for your reference. I would greatly appreciate any insights or suggestions you might have on resolving this convergence issue.

Best,
Will
 

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  • cesm.log.7950582.241102-003203.txt
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  • ice.log.7950582.241102-003203.txt
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  • lnd.log.7950582.241102-003203.txt
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