<div>Hello,</div>
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<div>I am an undergraduate student in Philadelphia, Pennsylvania, and am currently working with the Department of Energy.</div>
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<div>I have the following problem with gmsh. I activated the "Surface numbers" option, in order to make Physical Entities using those number assignments. Unfortunately, everytime I reload the program a new set of surface numbers is assigned to surfaces on the mesh, thereby making my original physical-entities-assignments obsolete. Is there anyway to have the surface-number-tags stay constant?
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<div>-Thank you</div>
<div> Carlos Bahamondes </div>
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