GAMS World Forum

You are my hero!!!

Z: is just my second SSD drive. But as long as I run the model on my C drive the solving process starts.
I do not know why but it totaly solves the issue!

Thank you so much!

How did you know?

Hi everyone, i get some error message that drives me crazy... "Msg=I/O error on write of file = 'Z:\ABC.lst': Invalid argument However the the error occurs only if i have many entrys for one set (t). If i reduce the amount the model will solve perfectly. Does anyone ever noticed such a problem?...

Hi everyone, I am still trying to figure out how EMP and Stochastic Programming work together. Therefore I used the example from the Library https://www.gams.com/35/docs/UG_EMP_SP.html I added a new set "t" so that the demand varies over time. However, I do not understand (even if I tried ...

Hi dirkse and thank you very much for your help! Your solution was also my first try but if i put the whole dictionary in some modelling context got a mismatch error (790 -dimension mismatch). Is there something i do overlook? Set wo /w1*w9/ Variable z "profit"; Positive Variables x(wo) &q...

Hi everyone, I will use an example from the GAMS documentation for clarification (see below). The parameter s_rep is used to store the probability for each scenario with the header "prob" and as a default its value is zero (if i understood that code bit correctly): Set scen "scenarios...