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Dear all,<br>
<br>
I am working with WRF3.8.1 on the supercomputer of our university
and have problems writing files larger than 2.2 GB from geogrid.exe
(may be from other routines, too).<br>
Large file support has been enabled by setting <span class="st">WRFIO_NCD_LARGE_FILE_SUPPORT
to 1. Running geogrid.exe for 4 nested domains geo_em.d<>.nc
for the first three domains are written properly as '64-bit
offset', so I expect that </span><span class="st">WRFIO_NCD_LARGE_FILE_SUPPORT
is recognized. Errror Message for the last domain (~4000*2500
gridpoints) is <br>
<br>
Processing domain 4 of 4<br>
Processing XLAT and XLONG<br>
ERROR: Error in ext_pkg_write_commit<br>
<br>
There are no limitations on the file size in our system (tested as
suggested from
<a class="moz-txt-link-freetext" href="https://www.unidata.ucar.edu/software/netcdf/faq-lfs.html">https://www.unidata.ucar.edu/software/netcdf/faq-lfs.html</a>). I run
geogrid.exe with 30GB memory of each CPU to avoid problems due to
insufficient memory. <br>
<br>
WRF and WPS have been compiled with the following libraries for
application in distributed memory mode:<br>
<br>
</span><span class="st"><span class="st">8)
GCCcore/5.3.0 <br>
</span>9) binutils/2.26-GCCcore-5.3.0 <br>
</span><span class="st"><span class="st"> 10)
icc/2016.3.210-GCC-5.3.0-2.26</span><br>
</span><span class="st"><span class="st">11)
ifort/2016.3.210-GCC-5.3.0-2.26<br>
</span></span><span class="st"><span class="st"><span class="st">12)
iccifort/2016.3.210-GCC-5.3.0-2.26 </span></span>
<br>
</span><span class="st"><span class="st">13)
impi/5.1.3.181-iccifort-2016.3.210-GCC-5.3.0-2.26 </span><br>
</span><span class="st"><span class="st">14)
iimpi/2016.03-GCC-5.3.0-2.26 </span><br>
</span><span class="st"><span class="st">15)
imkl/11.3.3.210-iimpi-2016.03-GCC-5.3.0-2.26<br>
</span></span><span class="st"><span class="st"><span class="st">16)
intel/2016.03-GCC-5.3 <br>
</span></span>17) JasPer/1.900.1-intel-2016.03-GCC-5.3<br>
18) zlib/1.2.8-intel-2016.03-GCC-5.3<br>
19) Szip/2.1-intel-2016.03-GCC-5.3<br>
20) HDF5/1.8.16-intel-2016.03-GCC-5.3<br>
21) cURL/7.47.0-intel-2016.03-GCC-5.3<br>
22) netCDF/4.4.0-intel-2016.03-GCC-5.3<br>
23) netCDF-Fortran/4.4.3-intel-2016.03-GCC-5.3<br>
<br>
Does anybody has an idea, what could be the problem ? Any help is
greatly appreciated !<br>
<br>
Many thanks for your help in advance !<br>
<br>
Klemens<br>
</span>
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