The .sw suffix controls the field width of the texts associated with elements in a GAMS model. In an AIMMS model a string parameter is used instead of associating texts with elements. A value of 0 implies variable length. When specified it overrides the option put_string_width.


The value of the .sw suffix is an integer in the range {0..``option listing_page_width``} and the default is -1.


  • The suffix .sw is initialized to -1. AIMMS considers it specified when its value is not equal to -1.

  • The suffix .sw is a legacy from GAMS and AIMMS 2.