GAMS World Forum

Just to add one other thing to this thread for anyone else who may find it useful ...

Actually, if you set the "mipstart" option to 4 or 5, CPLEX successfully "fixes" the solution in the GDX file to find a feasible starting solution.

Thank you for the feedback. I had wondered if this workaround would do the trick, but hadn’t had a chance to test it yet.

Again, I appreciate the response!

I'm having trouble using the CPLEX "multimipstart" option. It seems that it does not work correctly in some situations. Please see the following small working example: set testSet / 1 * 7 /; integer variables testVar(testSet) a test variable testVar2(testSet) another test variable ; free v...