(RESOLVED) WRF crashes with "forrtl: severe (174): SIGSEGV, segmentation fault occurred"

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M

mpletch1

New member
Hi all,

I am attempting to run WRF with a 12 km parent domain and 4 km nested domain. I recently increased the size of my 4 km nested domain and adjusted its location inside the parent domain and I'm now having issues while running wrf.exe. When I run wrf.exe, WRF only outputs one file for each domain and then stops. When looking at an rsl.error file, I found one that gives the following error:

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
wrf.exe 00000000030AF39D for__signal_handl Unknown Unknown

Stack trace terminated abnormally.

I have already attempted to redownload my initialization data and rerun WRF that way, but it's still giving me the same error. Before I changed the number of grid points in my nested domain, the model was running fine, so I'm wondering if it's related to WRF crashing. I have attached my namelist.input, namelist.wps, and rsl.error.0072 files for reference. Any help is greatly appreciated.

Thanks,
Michael
 

Attachments

Hi Michael,
When you increased the size of the domains, did you also increase the number of processors you're using? Take a look at this FAQ that discusses how to choose a good number of processors. Depending on different physics/dynamics settings, etc. you may need more than the amount calculated as the "rule of thumb."
 
Hi,

I was able to successfully run WRF by increasing the number of nodes from 6 to 9 in my run_wrf file. I did not make any further changes to the domain dimensions to get it to run.
 
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