Gdx

This option specifies the name of the GAMS data exchange file and causes such a file (a GDX file) to be written containing all data in the model at the end of the job.  String input is expected.

The command is implemented with the syntax

Gdx=filename

Setting gdx to the string "default" i.e.

gdx=default 

causes GAMS to create a GDX file with the GMS file root name and a GDX extension. Thus

gams trnsport gdx=default 

will cause GAMS to write the GDX file trnsport.gdx.