<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">Hello everybody,</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">I am trying to remesh a very easy trivial *.stl geometry which I previously generated in Blender. Therefore I followed the instructions from a gmsh mailing list post: </span><a href="http://geuz.org/pipermail/gmsh/2011/006887.html" target="_blank" style="color: rgb(153, 0, 102); text-decoration: none; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class="">http://geuz.org/pipermail/gmsh/2011/006887.html</a><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">1) Open inout.stl in gmsh (with gui)</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">2) Click on Mesh->Reclassify 2D</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">3) Click on "All" in step 1 and step 3, then click on "Reclassify"</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">4) Save the reclassified mesh as a new msh file -> reclassified_inout.msh</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">5) I can see several distinct surfaces when I open this new file and go to Tools/Visibility.</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">6) Write a new file test.geo:</span><div class=""><pre class="alt2" dir="ltr" style="background-color: rgb(247, 247, 255); font-size: 13px; margin-top: 0px; margin-bottom: 0px; padding: 7px; border: 1px inset; width: 640px; height: 322px; overflow: auto;">Mesh.RemeshAlgorithm=1;
Mesh.CharacteristicLengthFactor=0.05;
Merge "reclassified_inout.msh";
CreateTopology;
Compound Surface(23)={3};
Compound Surface(24)={4};
Compound Surface(25)={5};
Compound Surface(26)={6};
Compound Surface(27)={7};
Compound Surface(28)={8};
Compound Surface(29)={9};
Compound Surface(30)={10};
Compound Surface(31)={11};
Compound Surface(32)={12};
Compound Surface(33)={13};
Compound Surface(34)={14};</pre><div class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">7) Run </span><div style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; margin: 5px 20px 20px;" class=""><div class="smallfont" style="font-size: 11px; margin-bottom: 2px;">Code:</div><pre class="alt2" dir="ltr" style="background-color: rgb(247, 247, 255); font-size: 10pt; margin-top: 0px; margin-bottom: 0px; padding: 7px; border: 1px inset; width: 640px; height: 34px; overflow: auto;">gmsh -2 test.geo</pre></div><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">Unfortunately I get the following error message:</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><div style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; margin: 5px 20px 20px;" class=""><div class="smallfont" style="font-size: 11px; margin-bottom: 2px;">Code:</div><pre class="alt2" dir="ltr" style="background-color: rgb(247, 247, 255); font-size: 10pt; margin-top: 0px; margin-bottom: 0px; padding: 7px; border: 1px inset; width: 640px; height: 498px; overflow: auto;">kate@kate-VirtualBox:/media/sf_documents/gmsh/Daten/inout_cubes_vonBlender$ gmsh -2 test.geo
Info : Running 'gmsh -2 test.geo' [Gmsh 2.9.3, 1 node, max. 1 thread]
Info : Started on Thu Jun 25 11:34:00 2015
Info : Reading 'test.geo'...
Info : Reading 'reclassified_inout.msh'...
Info : 16 vertices
Info : Vertex numbering is dense
Info : 36 elements
Info : Done reading 'reclassified_inout.msh'
Info : Creating topology from mesh...
Info : Removing duplicate mesh vertices...
Info : Found 0 duplicate vertices
Info : No duplicate vertices found
Info : Done creating topology from mesh (0.000554 s)
Info : Done reading 'test.geo'
Info : Meshing 1D...
Info : Done meshing 1D (1.7e-05 s)
Info : Meshing 2D...
Info : Meshing surface 23 (Compound surface, MeshAdapt)
Info : Parametrizing surface 23 with 'convex map'
[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: Object is in wrong state
[0]PETSC ERROR: Not for unassembled matrix
[0]PETSC ERROR: See <a href="http://www.mcs.anl.gov/petsc/documentation/faq.html" class="">http://www.mcs.anl.gov/petsc/documentation/faq.html</a> for trouble shooting.
[0]PETSC ERROR: Petsc Release Version 3.5.2, Sep, 08, 2014
[0]PETSC ERROR: gmsh on a linux_complex_mumps_seq named kate-VirtualBox by kate Thu Jun 25 11:34:00 2015
[0]PETSC ERROR: Configure options --with-pic --with-blas-lapack-lib="[/usr/local/lib/liblapack.a,/usr/local/lib/libblas.a,-lpthread]" --with-clanguage=cxx --with-debugging=0 --with-mpi=0 --with-x=0 --with-ssl=0 --with-mpiuni-fortran-binding=0 --with-mumps-include=/home/geuzaine/src/mumps_seq/include --with-mumps-lib="[/home/geuzaine/src/mumps_seq/lib/libcmumps.a,/home/geuzaine/src/mumps_seq/lib/libsmumps.a,/home/geuzaine/src/mumps_seq/lib/libdmumps.a,/home/geuzaine/src/mumps_seq/lib/libzmumps.a,/home/geuzaine/src/mumps_seq/lib/libmumps_common.a,/home/geuzaine/src/mumps_seq/lib/libmetis.a,/home/geuzaine/src/mumps_seq/lib/libmpiseq.a,/home/geuzaine/src/mumps_seq/lib/libpord.a]" --with-mumps-serial --with-shared-libraries=0 --with-scalar-type=complex
[0]PETSC ERROR: #1 MatGetOrdering() line 189 in /home/geuzaine/src/petsc-3.5.2/src/mat/order/sorder.c
[0]PETSC ERROR: #2 PCSetUp_ILU() line 196 in /home/geuzaine/src/petsc-3.5.2/src/ksp/pc/impls/factor/ilu/ilu.c
[0]PETSC ERROR: #3 PCSetUp() line 902 in /home/geuzaine/src/petsc-3.5.2/src/ksp/pc/interface/precon.c
[0]PETSC ERROR: #4 KSPSetUp() line 305 in /home/geuzaine/src/petsc-3.5.2/src/ksp/ksp/interface/itfunc.c
[0]PETSC ERROR: #5 KSPSolve() line 417 in /home/geuzaine/src/petsc-3.5.2/src/ksp/ksp/interface/itfunc.c
[0]PETSC ERROR: #6 _try() line 9 in /home/geuzaine/src/gmsh/Solver/linearSystemPETSc.hpp
Aborted (core dumped)</pre></div><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">I have attached the necessary files to reproduce the problem. I tried with gmsh 2.9.3 on OS X and gmsh 2.9.3 on Ubuntu.</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">I would appreciate any help/hint/comment!</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">Best regards,</span><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px;" class=""><span style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(247, 247, 247);" class="">Kate</span></div><div class=""></div></div></body></html>