GAMS World Forum

Thank you Michael!

Hello,

I have a question: does SBB perform automatic scaling? I didnt find any indication that it does, and perhaps you could give me an insight towards the answer.

Best regards,
Francisco

Hey!

Thank you for your reply. I will try to implement this.

Hello, hope you are all doing fine. I am sorry if this question has been answered previously, however I couldnt find any solution. Suppose I ran a model 20 times, each with different parameters and solutions. I want to compare the result variables' levels for each run. I'm trying to do this automati...

Thank you Michael!

Good evening I have a model with the following details (I'll skip most sets, parameters and variables, of relevance are the sets, variable and objective function below): set i /AF,A,B,C/ set j /A,B,C,EF/ Variable F(i,j) OF .. FT =e= sum((i,j),F(i,j)); I want to solve the model individually for each ...

Thanks Michael!

Hi all,

I have a question: IPOPT returns me this:
Well I have initialized the variables with a plausible, but random value. Is there anyway to circumvent the problem in the figure?

Hi,

I seem to be having a similar problem: SBB reports an INTEGER SOLUTION (Fig.1), but my binary variable y has values like 1e-6 (Fig.2).
However if I run ANTIGONE(or SBB again) afterwards, it accepts the objective value of SBB, but the binaries are now all 0 and 1.

Hey, I think this is the right place for this question: I have a variable A, and a GDX file with A.l from another model. I want to do something like (in my new model): $gdxin TEST $load A.up=A.l GAMS returns an error saying I cannot load/unload this suffix. I got around this by writing a parameter P...