[Gmsh] Windows, Ubuntu give different meshes

[Gib Bogle]

I have been testing with the demo file cube.geo:


lc = 0.3;
Point(1) = {0.0,0.0,0.0,lc};
Point(2) = {1,0.0,0.0,lc};
Point(3) = {1,1,0.0,lc};
Point(4) = {0,1,0.0,lc};
Line(1) = {4,3};
Line(2) = {3,2};
Line(3) = {2,1};
Line(4) = {1,4};
Line Loop(5) = {2,3,4,1};
Plane Surface(6) = {5};
tmp[] = Extrude {0,0.0,1} {
  Surface{6};
};
Physical Volume(1) = tmp[1];


I generate the mesh file at the command line like this:


gmsh -3 cube.geo


on a Windows 7 machine and on Ubuntu 16.04.  The gmsh version is 4.3.0.


I find that the meshes created on the two systems are a bit different.  On Windows the mesh has 137 nodes and 372 elements, while on Ubuntu it has 136 nodes and 373 elements.


Should I be concerned about this?


Thanks

Gib
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