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Segmentation fault (signal 11)

G

gpicciano

New member
Hello,

I'm trying to run a 24-hour simulation with 7 nested domains. When running wrf.exe, it keeps failing after the 19:55 output file and stating that was due to a segmentation fault (signal 11). This has happened several times, so I've tried changing the number of cpus and running on different nodes with higher RAM but none of these changes seem to be working.

I attached my namelist files, is there a way around this?
 

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Hi,
Can you attach your error log (or if you have several rsl.* files, please package those together into a *.tar file and attach that)? Thanks.
 
I find the following CFL errors in your rsl files, which means the model has become unstable.

Code: 
rsl.error.0005:d03 2024-04-08_19:54:30           20  points exceeded v_cfl = 2 in domain d03 at time 2024-04-08_19:54:30 hours
rsl.error.0005:d03 2024-04-08_19:54:30 Max   W:    116     90     26 W:    3.54  w-cfl:    2.09  dETA:    0.02
rsl.error.0005:d03 2024-04-08_19:54:40           39  points exceeded v_cfl = 2 in domain d03 at time 2024-04-08_19:54:40 hours
rsl.error.0005:d03 2024-04-08_19:54:40 Max   W:    121     89     26 W:    3.38  w-cfl:    2.11  dETA:    0.02
rsl.error.0005:d03 2024-04-08_19:54:50           52  points exceeded v_cfl = 2 in domain d03 at time 2024-04-08_19:54:50 hours
rsl.error.0005:d03 2024-04-08_19:54:50 Max   W:    121     90     25 W:    2.41  w-cfl:    2.21  dETA:    0.02

See Segmentation Faults - Helpful Information, which includes suggestions for overcoming CFL errors.
 
ehsantaghizadeh said:
Hi,
May I ask which time step solved your problem? Also, what was your domain resolution?
Click to expand...
Hi,
I used 125 as my time step (5*dx) for my outermost domain at 25-km resolution. I have a few nested domains within that with increasing spatial resolution (5-km and 1-km, parent grid ratio is 5) so I also set the parent time step ration to 5 for these inner domains.
 
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