Merge pull request #8266 from gudeh/dpl-debug-two-stage-stop

dpl: fix debug mode, two stage stop (for DPL and DPO)

Author: maliberty

src/dpl/src/Optdp.cpp

@@ -8,6 +8,7 @@
 #include "utl/Logger.h"
 
 // My stuff.
+#include "graphics/DplObserver.h"
 #include "legalize_shift.h"
 #include "optimization/detailed.h"
 #include "optimization/detailed_manager.h"
@@ -116,6 +117,10 @@ void Opendp::improvePlacement(const int seed,
   Detailed dt(dtParams);
   dt.improve(mgr);
 
+  if (debug_observer_) {
+    debug_observer_->endPlacement();
+  }
+
   // Write solution back.
   updateDbInstLocations();