segmentation fault

Hi all I'm trying to get to the bottom of some weird issues when running WRF. - I was initially trying to run it on a large memory 64-core VM. WRF fails to complete both in serial and dmpar modes - I ran it on a cluster I have access to. With the same data / namelist files, WRF completed when...

Hi, I am currently using ERA5 data to get parameters such as QCLOUD. The previous steps (geogrid, ungrib, metgrid, real programs) run successfully. However, when I run wrf.exe, following error occurred. I have attached my namelist.input, rsl.error.0000 and rsl.out.0000 for review. Thank you...

Hi, I have previously successfully run my WRF model with the current settings I have, only with a smaller set of nested grids. In expanding the grids to cover a larger area, I am now running into new errors. I have adhered to "Choosing an Appropriate Number of Processors" as described in FAQ...

I am using future scenario data from MPI-ESM1-2-HR for downscaling, but I encountered a 'Segmentation Fault: Invalid Memory Reference' error while running real.exe. Below are my rsl.error, rsl.out, and namelist.input files. Could you please help me take a look at this issue? I’d really...

I'm running WRF452 on the Linux system in my own pc to simulate a typhoon. Wrf.exe runs successfully when e_we=27, e_sn= 27. However, when I replaced them with e_we=270, e_sn= 270, wrf.exe runs several hours and output 10 hours wrf_out* data, then it collapses with the following error...

I'm running WRF452 on the Linux system in my own pc to simulate a typhoon. Wrf.exe runs successfully when e_we=27, e_sn= 27. However, when I replaced them with e_we=270, e_sn= 270, wrf.exe runs several hours and output 10 hours wrf_out* data, then it collapses with the following error...

Hi, I have completed a 4-nested simulation with resolutions of 12150-4050-1350-450m using WRF 4.0, and used ndown to make the driving file for 150m. However, when continuing the 2-nested simulation with 150m and 50m resolutions, I encountered "Segmentation fault" in module_sf_sfclay. This error...

Hello all, Greetings! I'm trying a LES simulation in the em_real folder. I did WRFDA assimilation for the initial moments. I am running the simulation on the server and using 120 processes. Due to server math, runtime, and cost issues, I am using a maximum of 120 processes and time_step cannot...

I'm running WRF452 on the Linux subsystem of my own Windows 11 system in my pc to simulate a typhoon. When I use ONE processor, wrf.exe runs successfully but slowly. However, when I use 16 processors for fast running speed, wrf.exe runs several hours and output 4 hours wrf_out* data, then it...

Hi everyone, I have set up the WRF model 4.5.1 for a long-term historical and projection run, spanning 20 years, with forcing data derived from NoeESM2 GCM. The model is configured to run with SLUCM coupled to the Boulac PBL schemes. The outer domain covers Europe at a 12 km grid resolution...

Dear WRF Users, 1. When I run ./real.exe, an error occurs. From the error log, it seems that there is no problem in the first two time steps of simulation, but it crashes in the third time step. 2. i Use Copernicus ERA5 Data with WRF !!!!!!!!!!!!!!!!!!!!!!!!!!!!! Domain 1: Current date being...

Good morning, I am a beginner and trying to learn how to run the WRF LES model to simulate the flow of tracer particles named 'plume' at a certain wind speed with 2 domains. When I set the simulation time to less than 1 hour, it runs fine, but when I set it to 5 hours, the program always stops...

Dear all, I'm Mimi. Thank you so much for always helping me..!! Now I'm currently working with WRF FIRE and aim to apply observation nudging with AWS data. I'm still getting familiar with converting data into little_r format, so I’m practicing with NCAR observation data in little_r as a first...

Hey, I've been trying to run high-resolution WRF for the TC case (so there is also moving nests), and I've noticed that despite me cleaning and recompiling both WRF and WPS and regenerating new BC files for the model, it's still not running correctly. Essentially it has a SIGTERM error roughly...

Dear support team, I am running WRF (coupled to a snow model) over Antarctica. 1 domain (200x200), 27km resolution, 90sec time step. The model advances smoothly and writes the output files without problems, until it crashes with exit code 143, or 139 (segmentation fault), approx. 9 days into...

I am trying to run MPAS model forecast on the North America 3-km domain but my forecast stopped just a few time steps after hour 0, with the values of the global min, max w and global min, max u way too big. I am attaching the log file and namelist file here. Can somebody provide some clues on...

Hello, I was tried to running wrf.exe, the program crashed at the begninning with the error "d01 2023-07-27_12:00:00 in YSU PBL forrtl: severe (174): SIGSEGV, segmentation fault occurred" I had already increase the number of cores (up to 512!) and decrease the timestep length, as well set the...

Dear all, Thanks in advance for your kind help! I'm wanting to run European windstorm for Europe with major focus over France and Germany. Brief WRF set-up: D3 (9km) : D2 (3km) : D1 (1km) Time step = 30s: 10s: 10s/3 Initial and boundary conditions are taken from ERA5 (~25km and hourly) I...

I am trying to run a test case that downscales an individual ensemble member from the CESM2 Large Ensemble and when I run wrf.exe, I make it 15 time steps and then the model crashes for an unknown reason. I have not been able to find an answer for what this error could mean, so I am unsure if...

Hi all, While running wrf.exe I'm encountering an error forrtl: severe (174): SIGSEGV, segmentation fault occurred after simulating 2 days. Error is not coming immediately, it is coming after 2 days of simulation only when hitting the date 2017-11-29_21:52:30 always. I'm using 64 cores to run...