Using RAP analysis in WRF-ARW Simulation

[jtwiles]

Hello, I have been trying to use the RAP analysis found at this link Index of /data/rapid-refresh/access/rap-130-13km/analysis/202407/20240714/ instead of ERA5 in WRF-ARW for a 2km to 500m nested simulation over the central U.S on the Derecho Supercomputer (default environment). For WPS, I am using the Vtable.RAP.pressure.ncep to ungrib the *_000.grb2 files and the Vtable.RAP.hybrid.ncep to again ungrib the *_000.grb2 files to get both pressure level and near surface data. Next, since RAP does not have soil level data, I have been using the GFS soil level data downloaded from rda.ucar.edu (download.sh script attached). I made sure to use the Vtable.GFS to ungrib this data as well. Next, I combined the three intermediate files together in metgrid.exe. WPS yielded no problems and I moved to WRF. Real.exe worked with no problems but when I try wrf.exe, I encounter a segmentation fault error. I have changed the microphysics and radiation physics to see if it matters, but it always stops in the same place, right after it processes the lateral boundary conditions for domain 1. I have also adjusted the time step from 6 seconds to 3 seconds but it does not make a difference. Note that no cfl errors exist in any rsl file along with no other specific error message. Lastly, I have varied the nodes from 1 to 30 with each having 128 processes per node and still have the same error message. Maybe I have missed a step in WPS even though I did not receive any errors? Any help would be greatly appreciated. Thanks.

Error:
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
libpthread-2.31.s 000014EED6B1F8C0 Unknown Unknown Unknown
wrf.exe 000000000257DD14 Unknown Unknown Unknown
wrf.exe 0000000002579FCD Unknown Unknown Unknown
wrf.exe 0000000001D91218 Unknown Unknown Unknown
wrf.exe 0000000001F79449 Unknown Unknown Unknown
wrf.exe 000000000172853B Unknown Unknown Unknown
wrf.exe 00000000014FADE8 Unknown Unknown Unknown
wrf.exe 00000000005B9EC3 Unknown Unknown Unknown
wrf.exe 0000000000417BC1 Unknown Unknown Unknown
wrf.exe 0000000000417B81 Unknown Unknown Unknown
wrf.exe 0000000000417B1D Unknown Unknown Unknown
libc-2.31.so 000014EED321029D __libc_start_main Unknown Unknown
wrf.exe 0000000000417A4A Unknown Unknown Unknown

 

[kwerner]

Hi, and many apologies for the delay in response while we've been intermittently short-staffed over the past month. Since it's been a while, can you let me know if there are any updates to this issue? If you're still having trouble, would you mind sharing the Derecho directories where I can find the runs? Thanks!