mpl:

  1. Cache actual offset die area instead of just the half
     perimeter and use the cached die to compute the max
     dist for max cost.
  2. Some renaming.

Signed-off-by: Arthur Koucher <arthurkoucher@precisioninno.com>

Author: AcKoucher

src/mpl/src/SimulatedAnnealingCore.cpp

@@ -84,10 +84,18 @@ SimulatedAnnealingCore<T>::SimulatedAnnealingCore(PhysicalHierarchy* tree,
   logger_ = logger;
   macros_ = macros;
 
-  die_hpwl_ = tree->die_area.getPerimeter() / 2;
+  setDieArea(tree->die_area);
   setAvailableRegionForPins(tree->available_regions_for_pins);
 }
 
+template <class T>
+void SimulatedAnnealingCore<T>::setDieArea(const Rect& die_area)
+{
+  die_area_ = die_area;
+  die_area_.moveHor(-outline_.xMin());
+  die_area_.moveVer(-outline_.yMin());
+}
+
 template <class T>
 void SimulatedAnnealingCore<T>::setAvailableRegionForPins(
     const std::vector<mpl::Rect>& regions)
@@ -319,8 +327,11 @@ void SimulatedAnnealingCore<T>::addClosestAvailableRegionDistToWL(
     const T& macro,
     const float net_weight)
 {
+  // To generate maximum cost.
+  const float max_dist = die_area_.getPerimeter() / 2;
+
   if (isOutsideTheOutline(macro)) {
-    wirelength_ += net_weight * die_hpwl_;
+    wirelength_ += net_weight * max_dist;
     return;
   }
 

src/mpl/src/SimulatedAnnealingCore.h

@@ -127,6 +127,7 @@ class SimulatedAnnealingCore
 
   void setAvailableRegionForPins(const std::vector<mpl::Rect>& regions);
   void initSequencePair();
+  void setDieArea(const Rect& die_area);
   void updateBestValidResult();
   void useBestValidResult();
 
@@ -163,8 +164,9 @@ class SimulatedAnnealingCore
   void report(const PenaltyData& penalty) const;
 
   Rect outline_;
+  Rect die_area_;  // Offset to the current outline.
+
   std::vector<Rect> available_regions_for_pins_;
-  float die_hpwl_;
 
   // Number of macros that will actually be part of the sequence pair
   int macros_to_place_ = 0;