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neperfepx / neper

Polycrystal generation and meshing
http://neper.info
GNU General Public License v3.0
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Can't read .msh file in -M module #842

Open kimauth opened 7 months ago

kimauth commented 7 months ago

Describe the bug

I get a segmentation fault when trying to read in a .msh file on my M1 Mac (macOS 14.4.1). Neper version: tried both 4.8.2 and 4.5.0 gmsh --version: tried 4.11.1 and 4.13

To Reproduce Minimum working example trying to read in a mesh that was produced by neper itself (msh format 2.2):

neper -T -dim 2 -n 3 -format tess
neper -M n3-id1.tess -dim 2 -format msh
$ neper -M n3-id1.tess,n3-id1.msh -dim 2 -format msh -o test_mesh_reading

========================    N   e   p   e   r    =======================
Info   : A software package for polycrystal generation and meshing.
Info   : Version 4.8.2
Info   : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info   : Running on 8 threads.
Info   : <https://neper.info>
Info   : Copyright (C) 2003-2022, and GNU GPL'd, by Romain Quey.
Info   : No initialization file found (`/Users/auth/.neperrc').
Info   : ---------------------------------------------------------------
Info   : MODULE  -M loaded with arguments:
Info   : [ini file] (none)
Info   : [com line] n3-id1.tess,n3-id1.msh -dim 2 -format msh -o
         test_mesh_reading
Info   : ---------------------------------------------------------------
Info   : Reading input data...
Info   :   - Reading arguments...
Info   : Loading input data...
Info   :   - Loading tessellation...
Info   :     [i] Parsing file `n3-id1.tess'...
Info   :     [i] Parsed file `n3-id1.tess'.
Info   :   - Loading mesh...
Info   :     [i] Parsing file `n3-id1.msh'...
Info   :     [i] Parsed file `n3-id1.msh'.
Info   :   - Reconstructing topology...
Info   : Meshing...
Info   :   - Preparing... zsh: segmentation fault  neper -M n3-id1.tess,n3-id1.msh -dim 2 -format msh -o test_mesh_reading

Context Ultimately the goal is to generate a tessalation, manipulate the mesh in gmsh in order to obtain a mesh that is refined in the grain boundaries and then read the manipulated mesh back into neper in order to insert cohesive elements along the grain boundaries. This workflow used to work a few years ago, but unfortunately I don't know the software versions that I used then anymore.