GAMS World Forum

Where have you heard that CPLEX can use GPUs? I think that is plain wrong.
It can use multiple cores/threads though. In GAMS you can set the number of threads via option threads.

I hope this helps!

Fred

Hi, When posting code code, please use the code tags. The code tags are inserted if you click on the symbol with "<\>". Otherwise the formatting (e.g. of tables) gets destroyed when copy/pasting code. For your model even the RMIP (the LP you get when neglecting integrality requirements for discrete ...

Hi, When you look into the lst file, you will find the following error message: 66 solve data_envelopment using lp minimizing M; **** $66,256 **** 66 The symbol shown has not been defined or assigned **** A wild shot: You may have spurious commas in the explanatory **** text of a declaration. Check ...

Hi,

When you set
Cplex should terminate as soon as that gap is reached.
Could you share a log and your code?

Fred

Hi, You read text1 as a 5-dimensional set. Hence, given the structure of the data in the csv file, it is expected that the domain sets Dim1,...,Dim5 contain the empty element. If you need to read the sets separately, the only way to do this with csv2gdx is to put them in different csv file. You coul...

Can you share the source file moi.gms?

Fred

There is no problem. It is usual that the initial point is not feasible. Look for example at the trnsport model. The equation listing shows ---- demand =G= satisfy demand at market j demand(new-york).. x(seattle,new-york) + x(san-diego,new-york) =G= 325 ; (LHS = 0, INFES = 325 ****) demand(chicago)....

Hi Teo,

You could use a dollar condition as follows I hope this helps!

Fred

Hi, You are referring to the equation listing which provides information about the generated model before it is solved. Infes=... indicates that the equation is infeasible for the given start point (i.e. based on the current levels of variables when the model is generated). "remaining ... entries sk...

The screenshot indicates that the job was not yet completed. Otherwise you would see in the log (or some error message if there are any issues).
Can you please share the full log file?

Best,
Fred