Creating a GDX file in GAMS

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A GDX file can be created by GAMS in three alternative forms

 

A total problem summary GDX file may be created

A GDX point file of solution information can be created

A selected item GDX file may be created

 

Such files are only created on explicit user request although this may be indirect when a program like Xlexport is included which in turn creates a GDX file.

Now let's review these cases.

 

Command line GDX option - GDX dump of the whole problem

GDX Point Solution file

GDX files containing selected items