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WRF Model Segmentation Error

A

Abdullah Sami

New member
Respected All,

I am running WRF v4.6 for the first time. I'm also experiencing the same Segmentation Error:
===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= PID 41157 RUNNING AT ROG-Strix-G15
= EXIT CODE: 9
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES ================================================================================== =YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)This typically refers to a problem with your application.Please see the FAQ page for debugging suggestions

I have attached the rsl error and out files. The namelist.input is also attached. Kindly assist me on this. Thankyou.
 

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  • rsl_error.zip
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Abdullah Sami said:
Respected All,

I am running WRF v4.6 for the first time. I'm also experiencing the same Segmentation Error:
===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= PID 41157 RUNNING AT ROG-Strix-G15
= EXIT CODE: 9
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES ================================================================================== =YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)This typically refers to a problem with your application.Please see the FAQ page for debugging suggestions

I have attached the rsl error and out files. The namelist.input is also attached. Kindly assist me on this. Thankyou.
Click to expand...

From your RSL out files you have some CFL errors.

Code: 
d01 2024-09-28_00:02:45            5  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:02:45 hours
d01 2024-09-28_00:02:45 Max   W:    148    158      5 W:   -5.44  w-cfl:    2.46  dETA:    0.01
d01 2024-09-28_00:03:00            7  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:03:00 hours
d01 2024-09-28_00:03:00 Max   W:    148    158      5 W:   17.69  w-cfl:    2.65  dETA:    0.01
d01 2024-09-28_00:03:00           22  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:03:00 hours
d01 2024-09-28_00:03:00 Max   W:    148    158      5 W:   -1.66  w-cfl:    3.24  dETA:    0.01
d01 2024-09-28_00:03:15           40  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:03:15 hours
d01 2024-09-28_00:03:15 Max   W:    148    159      3 W:   17.88  w-cfl:    5.35  dETA:    0.01
d01 2024-09-28_00:03:15           40  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:03:15 hours
d01 2024-09-28_00:03:15 Max   W:    148    158      4 W: -194.80  w-cfl:   10.60  dETA:    0.01
d01 2024-09-28_00:03:15          117  points exceeded v_cfl = 2 in domain d01 at time 2024-09-28_00:03:15 hours
d01 2024-09-28_00:03:15 Max   W:    148    159      4 W:  -70.44  w-cfl:   24.63  dETA:    0.01

Take a look at this post from the admins. Might help.

forum.mmm.ucar.edu

Segmentation Faults - Helpful Information

Segmentation faults can be difficult to track down. As there isn't usually a clear error message, it can take some trial and error to figure out the problem. 1) A segmentation fault is often the result of using too many or too few processors, or a bad decomposition. Take a look at this FAQ...
forum.mmm.ucar.edu forum.mmm.ucar.edu

Also try turning on w_damping=1
 
Abdullah Sami said:
I have downloaded GFS data (NCEP GFS 0.25 Degree) and plan to downscale it to 3x3 km resolution using the WRF Model.
Click to expand...
you'll want to do nesting

depending on where in the globe it is the .25 deg data is ~25-27km grid spacing. So I would start with a outer domain of 9x9km and then use a 1:3 nesting ratio down to 3x3km
 
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