What is Gmsh
Gmsh is a tool for generating meshes (1D, 2D, 3D) for Finite Volume or Finite Element simulation packages (e.g. OpenFOAM's
Terms of License and Conditions
Gmsh is Open Source software, published under the GPL (http://gmsh.info/#Licensing)
On the LRZ clusters, use the Environment Modules to find and set the environment.
Or, use gmsh as command-line tool, e.g. for a 3D mesh written to outputMesh.msh, using 4 OpenMP threads:
Official documentation; Youtube contains a lot of tutorials