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<p>Hi Matthew,</p>
<p>Ok, I did that but it segfault now. Here are the order of the
calls:</p>
<p>DMPlexCreate</p>
<p>DMSetDimension</p>
<p>DMPlexBuildFromCellListParallel(...)</p>
<p>DMPlexInterpolate</p>
<p>PetscPartitioner lPart;<br>
DMPlexGetPartitioner(lDMSansOverlap, &lPart);<br>
PetscPartitionerSetFromOptions(lPart);<br>
<br>
DMSetUseNatural(lDMSansOverlap, PETSC_TRUE)<br>
</p>
<p>DMPlexDistribute</p>
<p>DMPlexGlobalToNaturalBegin</p>
<p>DMPlexGlobalToNaturalEnd</p>
<p><br>
</p>
<p>But it gives me the following error:</p>
<p>0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------<br>
[0]PETSC ERROR: Petsc has generated inconsistent data<br>
[0]PETSC ERROR: DM global to natural SF not present.<br>
If DMPlexDistribute() was called and a section was defined, report
to <a class="moz-txt-link-abbreviated" href="mailto:petsc-maint@mcs.anl.gov">petsc-maint@mcs.anl.gov</a>.<br>
<br>
[0]PETSC ERROR: See
<a class="moz-txt-link-freetext" href="https://www.mcs.anl.gov/petsc/documentation/faq.html">https://www.mcs.anl.gov/petsc/documentation/faq.html</a> for trouble
shooting.<br>
[0]PETSC ERROR: Petsc Release Version 3.15.0, Mar 30, 2021 <br>
[0]PETSC ERROR: MEF++.dev on a named rohan by ericc Wed Jul 14
16:57:48 2021<br>
[0]PETSC ERROR: Configure options
--prefix=/opt/petsc-3.15.0_debug_openmpi-4.1.0_gcc7
--with-mpi-compilers=1 --with-mpi-dir=/opt/openmpi-4.1.0_gcc7
--with-cxx-dialect=C++14 --with-make-np=12
--with-shared-libraries=1 --with-debugging=yes --with-memalign=64
--with-visibility=0 --with-64-bit-indices=0 --download-ml=yes
--download-mumps=yes --download-superlu=yes --download-hpddm=yes
--download-slepc=yes --download-superlu_dist=yes
--download-parmetis=yes --download-ptscotch=yes
--download-metis=yes --download-strumpack=yes
--download-suitesparse=yes --download-hypre=yes
--with-blaslapack-dir=/opt/intel/oneapi/mkl/2021.1.1/env/../lib/intel64
--with-mkl_pardiso-dir=/opt/intel/oneapi/mkl/2021.1.1/env/..
--with-mkl_cpardiso-dir=/opt/intel/oneapi/mkl/2021.1.1/env/..
--with-scalapack=1
--with-scalapack-include=/opt/intel/oneapi/mkl/2021.1.1/env/../include
--with-scalapack-lib="-L/opt/intel/oneapi/mkl/2021.1.1/env/../lib/intel64
-lmkl_scalapack_lp64 -lmkl_blacs_openmpi_lp64"<br>
[0]PETSC ERROR: #1 DMPlexGlobalToNaturalBegin() at
/tmp/ompi-opt/petsc-3.15.0-debug/src/dm/impls/plex/plexnatural.c:245<br>
<br>
</p>
<p>What did I missed?</p>
<p>Thanks a lot!<br>
</p>
<p>Eric<br>
</p>
<div class="moz-cite-prefix">On 2021-07-14 3:09 p.m., Matthew
Knepley wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAMYG4GnCDN_bgeVC1PyPa=sY9cQ+vgYoPz3eNO6navCtqdZ_pQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div dir="ltr">On Wed, Jul 14, 2021 at 1:18 PM Eric Chamberland
<<a href="mailto:Eric.Chamberland@giref.ulaval.ca"
moz-do-not-send="true">Eric.Chamberland@giref.ulaval.ca</a>>
wrote:<br>
</div>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
I want to use DMPlexDistribute from PETSc for computing
overlapping and <br>
play with the different partitioners supported.<br>
<br>
However, after calling DMPlexDistribute, I noticed the
elements are <br>
renumbered and then the original number is lost.<br>
<br>
What would be the best way to keep track of the element
renumbering?<br>
<br>
a) Adding an optional parameter to let the user retrieve a
vector or <br>
"IS" giving the old number?<br>
<br>
b) Adding a DMLabel (seems a wrong good solution)<br>
<br>
c) Other idea?<br>
<br>
Of course, I don't want to loose performances with the need
of this <br>
"mapping"...<br>
</blockquote>
<div><br>
</div>
<div>You need to call</div>
<div><br>
</div>
<div> <a
href="https://petsc.org/release/docs/manualpages/DM/DMSetUseNatural.html"
moz-do-not-send="true">https://petsc.org/release/docs/manualpages/DM/DMSetUseNatural.html</a></div>
<div><br>
</div>
<div>before call DMPlexDistribute(). Then you can call</div>
<div><br>
</div>
<div> <a
href="https://petsc.org/release/docs/manualpages/DMPLEX/DMPlexGlobalToNaturalBegin.html"
moz-do-not-send="true">https://petsc.org/release/docs/manualpages/DMPLEX/DMPlexGlobalToNaturalBegin.html</a></div>
<div><br>
</div>
<div>to map back to the original numbering if you want. This
is the same thing that DMDA is doing.</div>
<div><br>
</div>
<div> Thanks,</div>
<div><br>
</div>
<div> Matt</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
Thanks,<br>
<br>
Eric<br>
<br>
-- <br>
Eric Chamberland, ing., M. Ing<br>
Professionnel de recherche<br>
GIREF/Université Laval<br>
(418) 656-2131 poste 41 22 42<br>
<br>
</blockquote>
</div>
<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>What most experimenters take for granted before
they begin their experiments is infinitely more
interesting than any results to which their
experiments lead.<br>
-- Norbert Wiener</div>
<div><br>
</div>
<div><a href="http://www.cse.buffalo.edu/~knepley/"
target="_blank" moz-do-not-send="true">https://www.cse.buffalo.edu/~knepley/</a><br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Eric Chamberland, ing., M. Ing
Professionnel de recherche
GIREF/Université Laval
(418) 656-2131 poste 41 22 42</pre>
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