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Q: I would like to make a gdx dump of all the sets/parameters/scalars of my model, but I do not want any equations or variables in there at all. … Currently my gdx dump at the end of the model solve contains the equations and variables as well.
If you just do 'execute_unload “allsymbols.gdx”;' as your last line, GAMS will export everything (including vars and equs) to the GDX container
allsymbols.gdx (similar to the command line parameter 'gdx=…').