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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Hi Francisco,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">I experienced the crashes in a two-domain simulation with sf_surface_physics = 2 (also tried 4) and sf_urban_physics = 2 (also tried 1) in both domains. For debugging purposes,
I then ran on only one domain.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Kevin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">_____________________________________________<br>
Kevin Tyle, Manager of Departmental Computing<br>
Dept. of Atmospheric & Environmental Sciences <br>
University at Albany<br>
Earth Science 235, 1400 Washington Avenue <br>
Albany, NY 12222<br>
Email: <a href="mailto:ktyle@albany.edu">ktyle@albany.edu</a><br>
Phone: 518-442-4578 <br>
_____________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Francisco Salamanca Palou [mailto:fsalaman@asu.edu]
<br>
<b>Sent:</b> Friday, July 21, 2017 1:03 PM<br>
<b>To:</b> Tyle, Kevin R <ktyle@albany.edu><br>
<b>Cc:</b> wrf-users@ucar.edu; wrfhelp@ucar.edu<br>
<b>Subject:</b> Re: [Wrf-users] Segfaults with Intel 2017 Compiler<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Kevin,<o:p></o:p></p>
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<p class="MsoNormal">You must run with the same sf_urban_physics option in all the domains, otherwise the model will crash.<o:p></o:p></p>
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<p class="MsoNormal">I hope this help you<o:p></o:p></p>
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<p class="MsoNormal">Best<o:p></o:p></p>
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<p class="MsoNormal">Francisco<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, Jul 21, 2017 at 9:57 AM, Tyle, Kevin R <<a href="mailto:ktyle@albany.edu" target="_blank">ktyle@albany.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">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.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">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.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">When WRF is run using the PGI compiler (2017), crashes are much less likely, but still occur on occasion.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">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.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D">--Kevin</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
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<span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">_____________________________________________<br>
Kevin Tyle, Manager of Departmental Computing<br>
Dept. of Atmospheric & Environmental Sciences <br>
University at Albany<br>
Earth Science 235, 1400 Washington Avenue <br>
Albany, NY 12222<br>
Email: <a href="mailto:ktyle@albany.edu" target="_blank">ktyle@albany.edu</a><br>
Phone: <a href="tel:(518)%20442-4578" target="_blank">518-442-4578</a>
<br>
_____________________________________________</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b> Tyle, Kevin R
<br>
<b>Sent:</b> Monday, July 17, 2017 4:05 PM<br>
<b>To:</b> '<a href="mailto:wrf-users@ucar.edu" target="_blank">wrf-users@ucar.edu</a>' <<a href="mailto:wrf-users@ucar.edu" target="_blank">wrf-users@ucar.edu</a>><br>
<b>Subject:</b> Segfaults with Intel 2017 Compiler<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Longwave schemes 4 (3.7.1 and 3.9) and 24 (3.9) have been tried with similar behavior.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">This is using openmpi (have tried the latest 1.10 and 2.1 releases). Stacksize is unlimited.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Intel compiler version 14.0.1 does not show this problem, nor does the latest PGI 2017 community release.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Any ideas or suggestions would be appreciated!<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--Kevin<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">_____________________________________________<br>
Kevin Tyle, Manager of Departmental Computing<br>
Dept. of Atmospheric & Environmental Sciences <br>
University at Albany<br>
Earth Science 235, 1400 Washington Avenue <br>
Albany, NY 12222<br>
Email: <a href="mailto:ktyle@albany.edu" target="_blank">ktyle@albany.edu</a><br>
Phone: <a href="tel:(518)%20442-4578" target="_blank">518-442-4578</a>
<br>
_____________________________________________</span><o:p></o:p></p>
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_______________________________________________<br>
Wrf-users mailing list<br>
<a href="mailto:Wrf-users@ucar.edu">Wrf-users@ucar.edu</a><br>
<a href="http://mailman.ucar.edu/mailman/listinfo/wrf-users" target="_blank">http://mailman.ucar.edu/mailman/listinfo/wrf-users</a><o:p></o:p></p>
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