(RESOLVED) forrtl: severe (174): SIGSEGV, segmentation fault occurred

[Avinash]

Hi,
I'm getting an error 'segmentation fault' during wrf.exe. I have tried few methods to resolve it. Like
1] Checked with CFL criteria
2] Checked with command 'ulimit -s unlimited' before running wrf.exe

But still this error didn't resolved.
Herewith, I have attached all rsl.error files and namelist.input.
Kindly, suggest me for same :!:

 

[kwerner]

Hi,
When I look at your rsl* files, I actually am seeing some CFL errors:

rsl.error.0203:d01 2016-12-24_00:09:34            1  points exceeded cfl=2 in domain d01 at time 2016-12-24_00:09:34 hours
rsl.error.0203:d01 2016-12-24_00:09:34  MAX AT i,j,k:          408         194          26  vert_cfl,w,d(eta)=   5.695942       9.954795      3.7109971E-02
rsl.error.0203:d01 2016-12-24_00:09:36            1  points exceeded cfl=2 in domain d01 at time 2016-12-24_00:09:36 hours
rsl.error.0203:d01 2016-12-24_00:09:36  MAX AT i,j,k:          408         194          26  vert_cfl,w,d(eta)=   2.732961       4.469662      3.7109971E-02

While it looks like you're already using a very low time-step, there are a few other options you could try to get rid of those. Take a look at this FAQ post.

Depending on the resolution of your input data, this could also be related to too-large of a discrepancy between the resolution of input data to your domain's resolution of 5km. You shouldn't have more than about a 9:1 ratio between the two. If so, then you may consider adding a more coarse outer domain to buffer the transition.

 

[Avinash]

Hi,
Thank you for your response. I have resolved this error with same namelist.input file in WRF setup 3.9.1. Earlier I was trying this is in 4.0. Once again thank you for your response.

 

[kwerner]

I'm glad to hear you were able to figure it out. Thank you for updating the post.