Hello, I want to change the CPLEX codes for the following sequence-dependent setup time-unrelated parallel machine scheduling problem. What I want to change is to provide manual data entry from the data file. Can anyone help me change the problem coding?

The .mod file is as follows:

using CP;

int nbJobs = 10;
range Jobs = 0..nbJobs-1;

int nbMachines = 3;
range Machines = 0..nbMachines-1;

// randomly generate processing time for each job
int minProcessingTime=10;
int maxProcessingTime=40;
int processingTimes[j in Jobs]=minProcessingTime+rand(maxProcessingTime-minProcessingTime);

// randomly generate setup times between jobs
int minSetUpTime=5;
int maxSetUpTime=10;
tuple setup { 
int j1; 
int j2; 
int setuptime; }

{setup} SetUpMatrix[m in Machines] ={ <j1,j2,minSetUpTime+rand(maxSetUpTime-minSetUpTime)> | j1,j2 in Jobs : j1 != j2};

// introduce decision variables
dvar interval itvs[j in Jobs][m in Machines] optional size processingTimes[j];
dvar sequence machine[m in Machines] in all(j in Jobs) itvs[j][m] types all(j in Jobs) j;

// minimize makespan
minimize max(j in Jobs,m in Machines) (endOf(itvs[j][m]));

subject to { 

//each job should be assigned to a machine
forall (j in Jobs) 
      sum(m in Machines) (presenceOf(itvs[j][m])) ==1;
      
//no overlap
forall (m in Machines) 
    noOverlap(machine[m],SetUpMatrix[m]);   
} 

execute {
  for (var j in Jobs) {
    for (var m in Machines) {
      if (itvs[j][m].present) {
        writeln("Job " + j + " on machine " + m + " starts at " +  itvs[j][m].start);
        writeln("Job " + j + " on machine " + m + " ends at " +  itvs[j][m].end);
         } 
    }      
  }
}

Hello Buğra Davut Daşkın,
Within OPL you may execute regular Java Script using IloOplOutputFile / IloOplInputFile to deal with your "manual" data.

From opl/BasketballScheduling/basketballscheduling.mod example:

// Create a data file
execute
{
  f = new IloOplOutputFile();
   f.open("acc0.dat");
   f.writeln("patset=");
   f.writeln(thisOplModel.patset);
   f.writeln(";");
   f.close();
}

Hope this helps