GAMS World Forum

Hi Michael,

After playing around with the sample you posted I figured out the issue I was having: I had declared an identifier called "min" as a variable elsewhere in the model. I changed this identifier's name and the min function is working properly again.

Thanks for the help!
Joel

You don't need an smin, a min is okay and since i and j are controlled by the equation this should work: equation(i, j).. t(i, j) =l= min[x(i) * U(i), y(j) * U(j)] * z(i, j); -Michael Thank you for the reply Michael. For some reason, when I use the min function, I get errors asking for a set at the...

Hi everyone, I am in need of a way to express the minimum of two parameters in a model constraint. The two parameters are not of the same set. For example: "equation(i, j).. t(i, j) =l= smin[x(i) * U(i), y(j) * U(j)] * z(i, j);" where t and z are variables and x, y and U are parameters. Ho...

Hi everyone, Is it possible to increase or decrease the resource limit during solution? Say that while reading the output in the console, you see an interesting objective value and would like to stop the solver there and then to obtain the output and run any "execute" commands which occur ...

Hi everyone, I'm finding a strange issue with a few MILPs I'm trying to solve. I run a model with, say, a resource limit of 2700 seconds and obtain a feasible solution X, where the model has not converged. I then increase the resource limit to 7200 s. The model still does not converge, however, read...