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CAM+OML (E compset) run time error: ridging error in ice model

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climatemodelling@...
CAM+OML (E compset) run time error: ridging error in ice model

Dear Forum, 

I encounter the following error message when running the E-compset with prescribed SOM data file from a coupled run (ccsm log file):

Repeat ridging, niter = 12
Repeat ridging, niter = 20

Exceeded max number of ridging iterations
max = 20
istep1, my_task, iblk = 1 1 1
Global block: 2
(shr_sys_abort) ERROR: ice: Ridging error
(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping
Repeat ridging, niter = 12
Repeat ridging, niter = 13
Repeat ridging, niter = 16
Repeat ridging, niter = 18
Repeat ridging, niter = 16
Repeat ridging, niter = 13
Repeat ridging, niter = 15
Repeat ridging, niter = 17
Repeat ridging, niter = 19
Repeat ridging, niter = 10
Repeat ridging, niter = 13
Repeat ridging, niter = 13
Repeat ridging, niter = 12
Repeat ridging, niter = 18
Repeat ridging, niter = 12
Repeat ridging, niter = 11
Repeat ridging, niter = 13
[hpc1057:31662] *** Process received signal ***
[hpc1057:31662] Signal: Segmentation fault (11)
[hpc1057:31662] Signal code: Address not mapped (1)
[hpc1057:31662] Failing at address: (nil)
Repeat ridging, niter = 14
Repeat ridging, niter = 14

Any suggestions what might cause this problem and where to start debugging? Thanks!

tangyanlia@...

I also encountered similar problems when I add a new atm component,please tell me how to solve?


 Exceeded max number of ridging iterations

 max =          20

 istep1, my_task, iblk =     1095001           8           1

 Global block:           9

(shr_sys_abort) ERROR: ice: Ridging error

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

 Repeat ridging, niter =          14

 Repeat ridging, niter =          20


 Exceeded max number of ridging iterations

 max =          20

 istep1, my_task, iblk =     1095001           9           1

 Global block:          10

(shr_sys_abort) ERROR: ice: Ridging error

 Repeat ridging, niter =          14

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

 Repeat ridging, niter =          15

 Repeat ridging, niter =          15

 Repeat ridging, niter =          18

 Repeat ridging, niter =           4

 Repeat ridging, niter =          19

 Repeat ridging, niter =          17

 Repeat ridging, niter =          20


 Exceeded max number of ridging iterations

 max =          20

 istep1, my_task, iblk =     1095001          16           1

 Global block:          17

(shr_sys_abort) ERROR: ice: Ridging error

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

 Repeat ridging, niter =          11

 

 Repeat ridging, niter =          14

 

kiki

dbailey

Sorry for not seeing this sooner. This is likely because you are getting excessive winds. Try writing out every timestep coupler history to see where the problem is originating. You might be able to increase ATM_NCPL/ICE_NCPL to alleviate the problem.

Dave

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