segmentation fault

[samudra]

Hi, I was trying to do a nested run for 48 hours, by including a sst input, which updates every one hour. All the details are mentioned in the namelist.input file. The model runs for around 17 hours and then crashes, giving segmentation fault. There is no violation of cfl condition and the memory of the disk is fine. I have attached the error file where it shows segmentation fault. I have gone through the segmentation error query (Segmentation Faults and CFL Errors) , but not been able to identify the issue. I have also ran the model for a slightly larger timestep of 108 sec (4x27km domain) but it gives the error of mismatched timestep for sst input files after 12 hours.

 

[Ming Chen]

Hi,

Your namelist.input looks fine to me except that
(1) time step is way too small. Please change it to time_step = 150
(2) let's keep radiation the same by setting radt = 15, 15
(3) I am not sure whetehre your domain is located. If the topography is high, please increase epssm to a larger value (e.g. 0.6)

In addition, I am not sure why you need to update SST at hourly interval? Can you run a test with turning off sst_update?