LABS, n = 30 with cutoff, TTS = 102s

coin-or · Nov 8, 2023 · 0440f41 · 0440f41
1 parent e4bc5ca
commit 0440f41
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Showing 2 changed files with 8 additions and 7 deletions.
diff --git a/examples/Optimization/MINLP/LABS/LABS.cpp b/examples/Optimization/MINLP/LABS/LABS.cpp
@@ -21,6 +21,7 @@ int main(int argc, char * argv[]){
     if(argc>=2){
         n=stoi(argv[1]);
     }
+    DebugOn("Optimizing with N = " << n << endl);
     Model<> M_obj("M_obj_LABS_"+to_string(n));
     Model<> M("LABS_"+to_string(n));
     var<> s("s", -1, 1);

diff --git a/src/GurobiProgram.cpp b/src/GurobiProgram.cpp
@@ -507,16 +507,16 @@ bool GurobiProgram::solve(bool relax, double mipgap, double time_limit){
 //    grb_mod->set(GRB_DoubleParam_IntFeasTol, 1e-9);
     //       grb_mod->set(GRB_IntParam_NumericFocus,3);
     //     grb_mod->set(GRB_IntParam_PreCrush,0);
-    //     grb_mod->set(GRB_IntParam_MIPFocus,3);
+//         grb_mod->set(GRB_IntParam_MIPFocus,1);
        // grb_mod->set(GRB_IntParam_IntegralityFocus,1);
     //grb_mod->set(GRB_IntParam_MIPFocus,1);
     //    grb_mod->set(GRB_IntParam_PumpPasses,50);
     //    grb_mod->set(GRB_IntParam_RINS,1000);
-    //    grb_mod->set(GRB_IntParam_Cuts,0);
+        grb_mod->set(GRB_IntParam_Cuts,0);
 
     grb_mod->set(GRB_DoubleParam_TimeLimit,time_limit);
     grb_mod->set(GRB_IntParam_OutputFlag,1);
-    //grb_mod->set(GRB_DoubleParam_Cutoff,5.33);
+    grb_mod->set(GRB_DoubleParam_Cutoff,59);
     //  grb_mod->set(GRB_IntParam_MinRelNodes,0);
     //    grb_mod->set(GRB_DoubleParam_Heuristics, 1);
     //    grb_mod->set(GRB_DoubleParam_NoRelHeurTime, 5);
@@ -543,10 +543,10 @@ bool GurobiProgram::solve(bool relax, double mipgap, double time_limit){
     }
     else{
         //cuts cb(_grb_vars, n, _model, interior);
-        if(!relax){
-            grb_mod->setCallback(&cb);
-            grb_mod->update();
-        }
+//        if(!relax){
+//            grb_mod->setCallback(&cb);
+//            grb_mod->update();
+//        }
     }
 
     //grb_mod->set(GRB_IntParam_RINS,1);