<div dir="ltr">Dear All,<div><br></div><div>I have a prismatic mesh generated by extruding a base icosahedron spherical surface mesh. The mesh is distributed on 2 processes after extrusion. The dof for my problem are defined only on the simplices of the spherical layers.</div><div><br></div><div>1. For a given spherical layer, I want to get points, which are basically simplices, lying on that layer only. DMPlexGetHeightStratum returns the points on all the spherical Layers. I can probably use DMPlexFindVertices (based on the radius of the spherical layer) and DMPlexGetSimplexOrBoxCells. Could you suggest if there is a better way to retrieve the points (which are simplices) on a given spherical layer in the extruded mesh?</div><div><br></div><div>2. I am able to visualize the entire mesh using dm_view. Is there a way to get the mesh file for the local dm from a specific process? </div><div><br></div><div>3. One of my previous emails might have got lost as I mistakenly attached a large mesh file and sent it. So I am repeating the question here. DMPlexExtrude gives the following error after distributing the base 2D spherical mesh. Both refinement or/and extrusion after dm distribution does not work for me. In fact, I tried with src/dm/impls/plex/tutorials/ex10.c also. Although the mesh is distributed after the extrusion in ex10.c (which is working fine for me), I tried to distribute before extrusion, and I get the following error. Could you please suggest where I might be making a mistake?</div><div><br></div><div>[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------<br>[0]PETSC ERROR: Object is in wrong state<br>[0]PETSC ERROR: This DMPlex is distributed but its PointSF has no graph set<br>[0]PETSC ERROR: See <a href="https://petsc.org/release/faq/">https://petsc.org/release/faq/</a> for trouble shooting.<br>[0]PETSC ERROR: Petsc Release Version 3.16.1, unknown<br>[0]PETSC ERROR: ./cavity_flow.out on a arch-darwin-c-debug named kl-21859 by subrambm Mon Nov 22 19:47:14 2021<br>[0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-mpich --download-fblaslapack --download-superlu_dist --download-hypre --download-fiat --download-generator --download-triangle --download-tetgen --download-chaco --download-make -download-boost --download-cmake --download-ml --download-mumps=<a href="https://bitbucket.org/petsc/pkg-mumps.git">https://bitbucket.org/petsc/pkg-mumps.git</a> --download-mumps-commit=v5.4.1-p1 --download-scalapack --download-ptscotch --download-hdf5 --force<br>[0]PETSC ERROR: #1 DMPlexCheckPointSF() at /Users/subrambm/petsc/src/dm/impls/plex/plex.c:8554<br>[0]PETSC ERROR: #2 DMPlexOrientInterface_Internal() at /Users/subrambm/petsc/src/dm/impls/plex/plexinterpolate.c:595<br>[0]PETSC ERROR: #3 DMPlexInterpolate() at /Users/subrambm/petsc/src/dm/impls/plex/plexinterpolate.c:1357<br>[0]PETSC ERROR: #4 DMPlexExtrude() at /Users/subrambm/petsc/src/dm/impls/plex/plexcreate.c:1543<br>[0]PETSC ERROR: #5 CreateMesh() at ex10.c:161<br>[0]PETSC ERROR: #6 main() at ex10.c:180<br>[0]PETSC ERROR: PETSc Option Table entries:<br>[0]PETSC ERROR: -dm_plex_extrude_layers 3<br>[0]PETSC ERROR: -dm_view vtk:mesh.vtk<br>[0]PETSC ERROR: -init_dm_plex_dim 2<br>[0]PETSC ERROR: -petscpartitioner_type simple<br>[0]PETSC ERROR: -srf_dm_distribute<br>[0]PETSC ERROR: -srf_dm_refine 0<br>[0]PETSC ERROR: ----------------End of Error Message -------send entire error message to petsc-maint@mcs.anl.gov----------</div><div><br></div><div>Thanks,</div><div>Bhargav</div><div><br></div></div>
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