Instrumenting Your Own Code

INDEX

This section explains how to customize the Debugger for Solver or Scheduler applications.

To customize the Debugger for a pure Solver C++ application, proceed as follows. You need one include file before the solver declaration:

#include <ilsolver/solverdebugger.h> 
 
IloEnv env; 
try { 
  IloSolver solver(env);

IlcSolverDebugger debugger(solver);

IloModel model(env);

myVar.setName("myVar");

debugger.registerVariable(myVar);

If you want domain visualization, specify it.

debugger.registerVariable(myVar2, IloTrue, IloTrue, IlcVisualizeDomain);

solver.extract(model);

  while (debugger.initialize()) { // debugging loop

    solver.startNewSearch(myGoal);

    while (solver.next()) { // optimization loop

      ostrstream text;

      text << solver.getValue(makespan)<< endl << ends;

      debugger.sendSolution(text.str());

    solver.endSearch();

  debugger.close();

} catch (IloException& ex) {

  cerr << "Error: " << ex << endl;

env.end();

To customize the Debugger for a pure Scheduler C++ application, proceed as follows. You need two include files before the solver declaration:

#include <ilsolver/solverdebugger.h> 
#include <ilsched/schedulerdebugger.h> 
 
try { 
  IloEnv env; 
  IloSolver solver(env);

  IlcSolverDebugger debugger(solver);

  IloModel model(env);

  IloSchedulerEnv schedEnv(env);

  IloInt horizon = 0;

  IloInt k;

  for (k = 0; k < numberOfActivities; k++)

    horizon += durations[k];

schedEnv.setHorizon(horizon);

  IlcScheduler schedule(solver);

  IlcSchedulerDebugger schedDebug(debugger,schedule);

  debugger.registerVariable(makespan,IloTrue,IloTrue,IlcVisualizeDomain);

  schedDebug.registerActivity(activity,IloTrue,IloTrue,IlcVisualizeDomain);

  schedDebugger.setHorizon(horizon);

  solver.extract(model);

  while (debugger.initialize()) { // debugging loop

    solver.startNewSearch(myGoal);

    while (solver.next()) { // optimization loop

     ostrstream text;

     text << solver.getValue(makespan)<< endl << ends;

     debugger.sendSolution(text.str());

    solver.endSearch();

  env.end();

  debugger.close();

  } catch (IloException& ex) {

    cerr << "Error: " << ex << endl;