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Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

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New member
Hi all,
I am experiencing this error message in my file which makes the simulation stop at exactly 10 mins. I know that this error message has received many responses on this platform but the suggested actions seem not to solve this one. Please see my attached namelist.input, namelist.wps, all rsl (error and out) files -since i run just 4 cores.

Your assistance will be highly appreciated.

Best regards,


  • namelist.wps
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  • namelist.input
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  • rsl.error.0000.txt
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  • rsl.error.0001.txt
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  • rsl.error.0002.txt
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  • rsl.error.0003.txt
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  • rsl.out.0000.txt
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  • rsl.out.0001.txt
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  • rsl.out.0002.txt
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  • rsl.out.0003.txt
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When I look into your out.0000, I see a lot of Flecher iterations .

When I had this problem it indicated that I had problems with my soil moisture.
So you should check your soil moisture files, or use a shorter timestep.

I hope this helps,
Please tell what is the forcing data for this case? I ask this because I notice that your input data only has 12 pressure levels. Such a coarse vertical resolution of data may introduce large bias when interpolated to the model level.
In addition, your model top is located at 150 spa, which is way too low. Can you set the model top to 50hPa (e.g., p_top_requested = 5000)
For dx = 10km, time step should be 60.
I don' see any other issues that may possibly lead to the model crash.