Changeset 1512 for trunk/Cbc

Timestamp:

Oct 12, 2010 6:58:46 AM (10 years ago)

Author:

forrest

Message:

add belt and braces/suspenders at root node

File:

• trunk/Cbc/src/CbcModel.cpp (modified) (1 diff)

trunk/Cbc/src/CbcModel.cpp

@@ -12036 +12036 @@
                     clpSolver->setSpecialOptions(save2 | 2048);
                     clpSimplex->allSlackBasis(true);
-                    clpSolver->resolve();
+                    clpSolver->resolve();
+                    if (!clpSolver->isProvenOptimal()) {
+                         bool takeHint;
+                         OsiHintStrength strength;
+                         clpSolver->getHintParam(OsiDoDualInResolve, takeHint, strength);
+                         clpSolver->setHintParam(OsiDoDualInResolve, false, OsiHintDo);
+                         clpSolver->resolve();
+                         clpSolver->setHintParam(OsiDoDualInResolve, takeHint, strength);
+                    }
                 }
                 // make cuts safer