Hi All,
I am working on my master thesis " Day ahead optimal scheduling of Distribution Grids" and have to optimize my model using MIP In GAMS software. Later, i shall connect the GAMS with MATLAB. I am receiving the following error.
**** THE MODEL EXCEEDS THE DEMO LIMITS
**** MAX MATRIX ROWS 300
**** MAX MATRIX COLUMNS 300
**** MAX NON ZERO ELEMENTS 2000
**** MAX NON LINEAR N-Z 1000
**** MAX DISCRETE VARIABLES 50
**** Terminated due to a licensing error
I am looking for help to solve this issue. I am not in condition to buy license key as it is expensive. Need your help.
Kind Regards,
Asad
Dear Asad,
You can try using the online platform NEOS: https://neos-server.org/neos/solvers/
You can upload your gms file there and submit it for run. There is a variety of sovers (CPLEX etc.)
Dear Vassilis,
I run my code on website and it is working perfectly. In my thesis, i have to optimize the software on optimization software such as ( GAMS) call it from MATLAB and get back the results on load flow software ( PSS-Sincal). Can you please give me any idea about it.
Dear Asad,
Supossing that the results from GAMS were writen in a .gdx file you can choose the option "Return GDX output" from NEOS and get the same thing. Other than that, there are free MIP solvers like GLPK, CBC and in the CoinOR page it is described how you can install those solvers and solve your MILP in GAMS: https://projects.coin-or.org/GAMSlinks/wiki/Installation.
Hello I am using MATLAB interfacing to read and write in Gams file. I am doing multi objective optimization. My first objective function i solved with MIP while second objective function required MINLP. Due to Limitation in license i cant optimize MINLP. Can someone tell me if possible to test my both files (.gms and .m ) online ??
- Badges
- Science topic