Using intlinprog solver for Unit Commitment Example

[Jules]

Hello,

I am pretty new at YAMLP and I am trying to modify the Unit Commitment Example provided here: http://users.isy.liu.se/johanl/yalmip/pmwiki.php?n=Examples.UnitCommitment

I am trying to modify it to use the intlinprog solver provided in Matlab using the command "options = sdpsettings('solver','intlinprog')" but I am getting the following error: info: 'Solver not applicable (intlinprog)'. 

Could you help me understand what parts of the Unit Commitment example I need to modify and why so as to use the intlinprog solver?

Thank you.

Jules

[Jules]

I just figured out how to get the intlinprog solver to work for the Unit Commitment Example. I just needed to change the objective function to a linear objective function. 

Jules

[Johan Löfberg]

Yup.

You should install a better mixed-nteger solver though. If you are in academia, gurobi, mosek, cplex are all free

[Jules]

I do have the IBM cplex solver installed and I setup the Matlab connector to CPLEX using the addpath instructions (as shown here: http://localrenewable.blogspot.com/2013/07/installing-cplex-for-matlab-step-by.html). I was also able to run the cplex examples provided for Matlab. 

However, when I try using it with YAMLP, I get the following "Warning: Solver not found (cplex)".

Is there any other step I need to take to allow YAMLP to see the cplex solver?

Thank you.

Jules

[Johan Löfberg]

what do you get when you do "which cplex -all"

[Jules]

I get the following:

C:\Program Files\IBM\ILOG\CPLEX_Studio1262\cplex\matlab\x64_win64\@Cplex\Cplex.p  % Cplex constructor

C:\Program Files\IBM\ILOG\CPLEX_Studio1262\cplex\matlab\x64_win64\@Cplex\Cplex.m  % Shadowed Cplex constructor

[Johan Löfberg]

aha, haven't updated for 12.6.2

simply search for 12.6.1 in definesolvers.m and change accordingly. 

[Jules]

It worked. Thank you so much.

Jules