Has Cplex 12.7 been supported by yalmip now?

[Xinwei Shen]

There are some new functions  in Cplex 12.7. and also, some new parameters needs to be defined.

However, when I typed

ops=sdpsettings;

>>ops.cplex

ans = 

             advance: 1

             barrier: [1x1 struct]

           clocktype: 2

            conflict: [1x1 struct]

             cpumask: 'auto'

        dettimelimit: 1.0000e+75

             distmip: [1x1 struct]

            emphasis: [1x1 struct]

             feasopt: [1x1 struct]

            lpmethod: 0

                 mip: [1x1 struct]

             network: [1x1 struct]

    optimalitytarget: 0

              output: [1x1 struct]

            parallel: 0

       preprocessing: [1x1 struct]

            qpmethod: 0

          randomseed: 201509044

                read: [1x1 struct]

             sifting: [1x1 struct]

             simplex: [1x1 struct]

        solutiontype: 0

      solutiontarget: 0

             threads: 0

           timelimit: 1.0000e+75

                tune: [1x1 struct]

             workdir: '.'

             workmem: 2048

             display: 'off'

         exportmodel: ''

it seems that above parameters are in old version of cplex.

Actually, I was looking for the parameter "Benders strategy" (https://www.ibm.com/support/knowledgecenter/pl/SSSA5P_12.7.0/ilog.odms.cplex.help/CPLEX/Parameters/topics/BendersStrategy.html). 

But I can't  find it.

[Johan Löfberg]

That is not the old format, it is the reduced format.

CPLEX still haven't fixed their massive crashing bugs, so YALMIP uses the reduced options set which is less likely to crash matlab when created (still crashes randomly though). Using the full set cplexoptimset('cplex') often crashes matlab when it is called. If you want to use that, you can edit sdpsettings and replace cplexoptimset with cplexoptimset('cplex'), but very likely you will see a lot of crashes (or simply create your options and then simply replace the cplex options, ops.cplex = cplexoptimset('cplex')

[Xinwei Shen]

Thanks. Problem sovled.

I found another problem: it seems that MODEL export for Cplex has a wrong output (needs to be Transposed) : MODEL.ctype 

If you type as below to solve a MILP problem

ops=sdpsettings('solver','cplex');

[MODEL,RECOVERYMODEL,DIAGNOSTIC,INTERNAL] = export(Constraints,Obj,ops);

[x,fval,exitflag,output]=cplexmilp(MODEL.f,MODEL.Aineq,MODEL.bineq,MODEL.Aeq,MODEL.beq,[],[],[],MODEL.lb,MODEL.ub,MODEL.ctype,MODEL.x0,MODEL.options);

Matlab said "ctype is in wrong size". However, 

[x,fval,exitflag,output]=cplexmilp(MODEL.f,MODEL.Aineq,MODEL.bineq,MODEL.Aeq,MODEL.beq,[],[],[],MODEL.lb,MODEL.ub,MODEL.ctype',MODEL.x0,MODEL.options);

works.