Forum Discussion
Naming sets where the elements are a combination of indices
Hello, I have a follow-up question on the MOSEL best practices described here, regarding naming sets: https://www.fico.com/fico-xpress-optimization/docs/latest/mosel/UG/dhtml/moselugapp_sec_secappn...
In general a 'range' index set can be expected to be faster than 'set of integer', so wherever this form makes sense we recommend to use 'range' in preference over 'set of integer'.
Differences in speed may only become measurable with quite large data sets. However, there is a difference regarding memory use for storing the set itself: a range is defined by its first and last value whereas for general sets all individual set elements need to be stored.