Is it possible to save the mesh from 'Gmsh3D("something.geo")'?

[CalebDmArcher]

Hi,

I am using Gmsh to generate the mesh and use

...
mesh = Gmsh3D("cube.geo")
phi = CellVariable(name="solution variable", mesh=mesh, value=T_ambient)
...

to set up the solution variable.

As my mesh gets finer and finer, it starts to take longer time to generate the mesh so I feel like it is unnecessary to regenerate the mesh.
I noticed that Gmsh3D might be a Fipy function.
Is it possible to save the results of it somewhere so I can directly use it next time?

[guyer]

When you call Gmsh3D("cube.geo"), the first thing it does is invoke the shell command

gmsh cube.geo -3 -nopopup -format msh2 -smooth 8 -o cube.msh

which converts the .geo geometry description to a .msh mesh definition.
So, you can do that manually, and then call

mesh = Gmsh3D("cube.msh")