[Wrf-users] Segfaults with Intel 2017 Compiler

[Francisco Salamanca Palou]

Hi Kevin,
You must run with the same sf_urban_physics option in all the domains,
otherwise the model will crash.
I hope this help you
Best
Francisco

On Fri, Jul 21, 2017 at 9:57 AM, Tyle, Kevin R <ktyle at albany.edu> wrote:

> Thanks to those who responded.  One of the suggestions was to increase the
> value of the debugging parameter in the namelist and that was a big help.
>
>
>
> After recompiling with debugging and traceback, the true cause of the
> segfault revealed itself.  If sf_urban_physics is non zero AND a Noah land
> surface scheme is chosen, WRF will crash; not only with Intel 17.0.4 but
> also 14.0.1 (and the latest 18 beta).  Looks to be a problem with
> uninitialized variables when module_sf_noahdrv calls the particular
> sf_urban scheme.
>
>
>
> When WRF is run using the PGI compiler (2017), crashes are much less
> likely, but still occur on occasion.
>
>
>
> The documentation for WRF says that the urban physics schemes will work if
> a Noah LSM is chosen … perhaps this is a problem that was thought to be
> fixed but appears not to be.
>
>
>
> --Kevin
>
>
>
> _____________________________________________
> Kevin Tyle, Manager of Departmental Computing
> Dept. of Atmospheric & Environmental Sciences
> University at Albany
> Earth Science 235, 1400 Washington Avenue
> Albany, NY 12222
> Email: ktyle at albany.edu
> Phone: 518-442-4578 <(518)%20442-4578>
> _____________________________________________
>
>
>
> *From:* Tyle, Kevin R
> *Sent:* Monday, July 17, 2017 4:05 PM
> *To:* 'wrf-users at ucar.edu' <wrf-users at ucar.edu>
> *Subject:* Segfaults with Intel 2017 Compiler
>
>
>
> Hi,
>
>
>
> I’ve experienced segfaults in various WRF versions (3.7.1 and 3.9) that
> appear tied to executables built using the current (17.0.4) version of the
> Intel compilers.
>
>
>
> With debugging set at a value of 100 in namelist.input, I consistently see
> “CALL rrtmg_lw” as the last thing written to the rsl.error.0000 file prior
> to the segfault.
>
>
>
> Longwave schemes 4 (3.7.1 and 3.9) and 24 (3.9) have been tried with
> similar behavior.
>
>
>
> This is using openmpi (have tried the latest 1.10 and 2.1 releases).
> Stacksize is unlimited.
>
>
>
> Intel compiler version 14.0.1 does not show this problem, nor does the
> latest PGI 2017 community release.
>
>
>
> Any ideas or suggestions would be appreciated!
>
>
>
> --Kevin
>
>
>
> _____________________________________________
> Kevin Tyle, Manager of Departmental Computing
> Dept. of Atmospheric & Environmental Sciences
> University at Albany
> Earth Science 235, 1400 Washington Avenue
> Albany, NY 12222
> Email: ktyle at albany.edu
> Phone: 518-442-4578 <(518)%20442-4578>
> _____________________________________________
>
>
>
> _______________________________________________
> Wrf-users mailing list
> Wrf-users at ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/wrf-users
>
>
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