Originally posted by: Ahlem

This is my code in cplex : 

 

forall (j in Jobs, o1 in Ops, o2 in Ops: o1.jobId==j && o2.jobId==j && o2.pos==1+o1.pos)
  endBeforeStart(ops[o1],ops[o2]);     

 

forall (o in Ops)
    alternative(ops[o], all(md in Modes: md.opId==o.id) modes[md]); 

 

with my data is: 

 

Ops = {
  <1,1,0>,
  <2,1,1>,
  <3,1,2>,
  <4,1,3>,
  <5,1,4>,
   
  <6,2,0>,
  <7,2,1>,
  <8,2,2>,
  <9,2,3>,
  <10,2,4>,
  
  <11,3,0>,
  <12,3,1>,
  <13,3,2>,
  <14,3,3>,
  <15,3,4>,
  
  <16,4,0>,
  <17,4,1>,
  <18,4,2>,
  <19,4,3>,
  <20,4,4>,
 
  <21,5,0>,
  <22,5,1>,
  <23,5,2>,
  <24,5,3>,
  <25,5,4>,
    
  <26,6,0>,
  <27,6,1>,
  <28,6,2>,
  <29,6,3>,
  <30,6,4>,
  
  <31,7,0>,
  <32,7,1>,
  <33,7,2>,
  <34,7,3>,
  <35,7,4>,
  
  <36,8,0>,
  <37,8,1>,
  <38,8,2>,
  <39,8,3>,
  <40,8,4>,
  
  <41,9,0>,
  <42,9,1>,
  <43,9,2>,
  <44,9,3>,
  <45,9,4>,

  <46,10,0>,
  <47,10,1>,
  <48,10,2>,
  <49,10,3>,
  <50,10,4>
};

Modes = {  

//job 1
  <1,1,2,21>,
  
  <2,1,1,53>,
   
  <3,1,5,95>,
    
  <4,1,4,55>,
 
  <5,1,3,34>,
  <5,1,5,34>,
  
    
 //job 2
 
  <6,2,1,21>,
  
  <7,2,4,52>,
 
  <8,2,5,16>, 
  
  <9,2,3,26>, 

  <10,2,2,71>, 
  
//job 3

  <11,3,4,39>,
  
  <12,3,5,98>,
  
  <13,3,2,42>,
  <13,3,4,42>,

  <14,3,3,31>,

  <15,3,1,12>,

 
//job 4

  <16,4,2,77>,
  <16,4,5,77>,
  
  <17,4,1,55>,

  <18,4,5,79>,
  
  <19,4,3,66>,

  <20,4,4,77>,

//job 5

  <21,5,1,83>,

  <22,5,4,34>,
  <22,5,3,34>,
  
  <23,5,3,64>,
  
  <24,5,2,19>,

  <25,5,5,37>,
   
//job 6

  <26,6,2,54>,

  <27,6,3,43>,
  
  <28,6,5,79>,
  <28,6,4,79>,
  
  <29,6,1,92>,

  <30,6,4,62>, 

//job 7

  <31,7,4,69>,
  <31,7,3,69>,
  
  <32,7,5,77>,

  <33,7,2,87>,
  
  <34,7,3,87>,

  <35,7,1,93>,

  //job 8

  <36,8,3,38>,
  
  <37,8,1,60>,
  
  <38,8,2,41>,
  
  <39,8,4,24>,
    
  <40,8,5,83>,  
 

  //job 9
 
  <41,9,4,17>,
  
  <42,9,2,49>,
  <42,9,1,49>,
  
  <43,9,5,25>,
  
  <44,9,1,44>,
  
  <45,9,3,98>,
  <45,9,1,98>,
   

    //job 10
 
  <46,10,5,77>,
  
  <47,10,4,79>,
  <47,10,1,79>,
  
  <48,10,3,43>,
  <48,10,2,43>,
  
  <49,10,2,75>,
  
  <50,10,1,96>
  
};

And now i try to convert this in java using cplex and I do not know how to do it
when i use endBeforeStart in java this command takes as type of parameters IloIntervalVar.

I try this : 

//Precedence constraints
                                
                                ArrayList<IloIntervalVar> allTasks = new ArrayList<IloIntervalVar>();
                                IloIntervalVar[][] information = new IloIntervalVar[job][operation];
                                for (int i = 0; i < job; i++) {
                                        for (int j = 0; j < MG.get(m).get(i).getX(); j++) { //operation by job
                                                                                
                                                                IloIntervalVar task = cp.intervalVar(i,j);
                                                                information[i][j]=task; 
                                                                allTasks.add(task);
                                                                

                                        }
                                }
                                for (int i = 0; i < job; i++) {
                                        for (int j1 = 0; j1 < MG.get(m).get(i).getX(); j1++) {
                                                for (int j2 = 1; j2 < MG.get(m).get(i).getX(); j2++) {
                                                        
                                                        cp.endBeforeStart(information[i][j1], information[i][j2]);
                                                        
                                                }                                                                                    
                                        }
                                }

Do you think my code is correct ?

Any one can help me? 

 

 

#CPLEXOptimizers
#DecisionOptimization

Since your are using constraint programming, you will probably have much better luck asking your question on one of the constraint programming forums here: https://www.ibm.com/developerworks/community/forums/html/category?id=33333333-0000-0000-0000-000000000268

It will also help if you post your full model (in particular the definition of your decision variables and the tuples and if you tell why you suspect your code is wrong.

#CPLEXOptimizers
#DecisionOptimization

Originally posted by: Ahlem

Thanx you 

But, i would like to know what's the meaning of this objective please

"  minimize staticLex(max(i in Jobs, o in Ops: o.pos==jlast[i]) endOf(ops[o]),-sum(i in Jobs,j in Oper, k in Mchs) s[i][j][k]);  " 

Does the sign (-)have a definite meaning ? 

How can i transform the staticLex function ? 

How can i transform this objective into a set of sum (using cplex in java) ?

 

#CPLEXOptimizers
#DecisionOptimization