Originally posted by: SystemAdmin

I want to hide the immediate results during the execution of cplex::solver() method. For example, I want to hide this part:

---

1 of 1 MIP starts provided solutions.
MIP start 'm1' defined initial solution with objective 80544.0000.
Tried aggregator 2 times.
MIP Presolve eliminated 57 rows and 272 columns.
Aggregator did 28 substitutions.
Reduced MIP has 50 rows, 86 columns, and 285 nonzeros.
Reduced MIP has 0 binaries, 0 generals, 0 SOSs, and 0 indicators.
Presolve time = 0.02 sec.
MIP emphasis: balance optimality and feasibility.
MIP search method: dynamic search.
Parallel mode: deterministic, using up to 2 threads.
Root relaxation solution time = 0.00 sec.

Nodes Cuts/
Node Left Objective IInf Best Integer Best Node ItCnt Gap

• 0+ 0 80544.0000 19 ---

0 0 cutoff 80544.0000 19 0.00%

Root node processing (before b&c):
Real time = 0.05
Parallel b&c, 2 threads:
Real time = 0.00
Sync time (average) = 0.00
Wait time (average) = 0.00

---

Thanks for your suggestion.

Lessi.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

C++ API? Try env.setOut(env.getNullStream()), where env is your instance of IloEnv. It directs all terminal output to a black hole.

/Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

I tried it but it does not work. I dont know why?

Lessi.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

Try

cplex.setOut(env.getNullStream());

where env is your instance of IloEnv and cplex is your instance of IloCplex.

Jave is so much simpler (sigh).

/Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

Does not work.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

Are you still having trouble with this?
If so, does this work:

cplex.setOut(cplex.getEnv().getNullStream());
cplex.solve();

It works for me. If it still does not work, could you post your code?
#CPLEXOptimizers
#DecisionOptimization