GAMS World Forum

Hi, I have been trying to build a model with the EmbeddedCode Facility of GAMS with python. However, I am not getting a clear picture about the data structure that is going in and out from the embedded code section[https://www.gams.com/latest/docs/UG_EmbeddedCode.html]. So, I have few queries regard...

Hi, I was wondering whether anyone can tell me whether it's possible to implement a constraint in GAMS where one of the variable is implemented via the embedded code facility. To be more specific, is it possible to make the solver iterate the value of the variables which is further passed to some py...

Hi, I am using the EmbeddedCode Facility of GAMS and using a python script which is supposed to process some data obtained from the optimization problem solution. For that I need to pass two parameters to the embedded section; one of them is this: image.png and another one is this image.png : Then I...

Hi, Is there any way to assign some specific marginal value to some equality constraint in GAMS and run the optimization script which will have those assigned values fixed over the optimization horizon? I know that the marginal values are product of the optimization solution, but I guess it might be...

Hi,

Does anyone know, whether it is possible or not to control the value of lagrange multiplier by introducing a constraint in the optimization formulation? If yes, how can we do that.

Regards,
Jubeyer

Thanks.

Hi , I am getting this kind of message in my log file, MIP status(101): integer optimal solution Cplex Time: 148.14sec (det. 115562.34 ticks) Fixing integer variables, and solving final LP... Version identifier: 12.10.0.0 | 2019-11-26 | 843d4de CPXPARAM_Advance 2 CPXPARAM_Threads 1 CPXPARAM_Parallel...

OK. I guess what you're trying to do from looking at your code is that you have integrated all three of your objective function to a single objective function. That may work if you don't have any conflicting interest. Then it will be a typical optimization problem. If you have a case that you want t...

Hi, I am running a sequential optimization problem, where the variable of one problem is passed as a parameter to other. However I have tried to load a variable which is a parameter in another problem from the output gdx file. I have declared the variable as a parameter in the next file. While tryin...

Do you need any kind of synchronization among the variables of these three problems?

I think you can try to solve that by seeking the nash equilibrium in the stackelberg version.