* ./katabatic:

- Change: In LayerAssign, desaturate until the last two top layers are reacheds
        instead of only METAL2 & METAL3.
    - Change: In Configuration/GCellGrid/GCell, correct computation of the edges
        capacity (based on the numbers of avalaibles layers and not hard-wired to
        4).

katabatic/src/Configuration.cpp

@@ -25,12 +25,14 @@
 
 #include  <iostream>
 #include  <iomanip>
+#include  <vector>
 
 #include  "vlsisapd/configuration/Configuration.h"
 #include  "hurricane/Technology.h"
 #include  "hurricane/DataBase.h"
 #include  "hurricane/Cell.h"
 #include  "crlcore/Utilities.h"
+#include  "crlcore/RoutingLayerGauge.h"
 #include  "crlcore/AllianceFramework.h"
 #include  "katabatic/Configuration.h"
 
@@ -44,11 +46,14 @@ namespace Katabatic {
   using  std::endl;
   using  std::setprecision;
   using  std::ostringstream;
+  using  std::vector;
   using  Hurricane::tab;
   using  Hurricane::inltrace;
   using  Hurricane::Technology;
   using  Hurricane::DataBase;
   using  CRL::AllianceFramework;
+  using  CRL::RoutingGauge;
+  using  CRL::RoutingLayerGauge;
 
 
 // -------------------------------------------------------------------
@@ -71,6 +76,8 @@ namespace Katabatic {
     , _saturateRp        (Cfg::getParamInt       ("katabatic.saturateRp"   ,8   )->asInt())
     , _globalThreshold   (DbU::lambda((double)Cfg::getParamInt("katabatic.globalLengthThreshold",29*50)->asInt())) // Ugly: direct uses of SxLib gauge.
     , _allowedDepth      (0)
+    , _hEdgeCapacity     (0)
+    , _vEdgeCapacity     (0)
   {
     if ( rg == NULL ) rg = AllianceFramework::get()->getRoutingGauge();
 
@@ -80,6 +87,18 @@ namespace Katabatic {
     _gmetalh  = DataBase::getDB()->getTechnology()->getLayer("gmetalh");
     _gmetalv  = DataBase::getDB()->getTechnology()->getLayer("gmetalv");
     _gcontact = DataBase::getDB()->getTechnology()->getLayer("gcontact");
+
+    vector<RoutingLayerGauge*>::const_iterator ilayerGauge = rg->getLayerGauges().begin();
+    for ( ; ilayerGauge != rg->getLayerGauges().end() ; ++ilayerGauge ) {
+      RoutingLayerGauge* layerGauge = (*ilayerGauge);
+      if ( layerGauge->getType() != Constant::Default ) continue;
+
+      if ( layerGauge->getDirection() == Constant::Horizontal ) {
+        _hEdgeCapacity += layerGauge->getTrackNumber ( 0, DbU::lambda(50.0) ) - 1;
+      } else if ( layerGauge->getDirection() == Constant::Vertical ) {
+        _vEdgeCapacity += layerGauge->getTrackNumber ( 0, DbU::lambda(50.0) ) - 1;
+      }
+    }
   }
 
 
@@ -165,6 +184,14 @@ namespace Katabatic {
   { return _globalThreshold; }
 
 
+  size_t  ConfigurationConcrete::getHEdgeCapacity () const
+  { return _hEdgeCapacity; }
+
+
+  size_t  ConfigurationConcrete::getVEdgeCapacity () const
+  { return _vEdgeCapacity; }
+
+
   void  ConfigurationConcrete::setAllowedDepth ( size_t allowedDepth )
   { _allowedDepth = (allowedDepth > getDepth()) ? getDepth() : allowedDepth; }
 

katabatic/src/GCell.cpp

@@ -912,7 +912,8 @@ namespace Katabatic {
           edgeUpUsage++;
         }
       }
-      edgeUpSaturation = (float)edgeUpUsage/((float)getVCapacity()*2.0);
+    //edgeUpSaturation = (float)edgeUpUsage/((float)getVCapacity()*2.0);
+      edgeUpSaturation = (float)edgeUpUsage/getGCellGrid()->getVEdgeCapacity();
     }
 
     if ( getRight() ) {
@@ -931,7 +932,8 @@ namespace Katabatic {
           edgeRightUsage++;
         }
       }
-      edgeRightSaturation = (float)edgeRightUsage/((float)getHCapacity()*2.0);
+    //edgeRightSaturation = (float)edgeRightUsage/((float)getHCapacity()*2.0);
+      edgeRightSaturation = (float)edgeRightUsage/getGCellGrid()->getHEdgeCapacity();
     }
 
     bool overload = false;
@@ -943,11 +945,11 @@ namespace Katabatic {
       ostringstream message;
       message << setprecision(3);
       if ( edgeUpSaturation > threshold )
-        message << "up edge: " << edgeUpUsage << "/" << (getVCapacity()*2.0)
+        message << "up edge: " << edgeUpUsage << "/" << getGCellGrid()->getVEdgeCapacity()
                 << " " << edgeUpSaturation;
       if ( edgeRightSaturation > threshold ) {
         if ( message.str().size() ) message << " & ";
-        message << "right edge: " << edgeRightUsage << "/" << (getVCapacity()*2.0)
+        message << "right edge: " << edgeRightUsage << "/" << getGCellGrid()->getHEdgeCapacity()
                 << " " << edgeRightSaturation;
       }
 

katabatic/src/GCellGrid.cpp

@@ -56,6 +56,8 @@ namespace Katabatic {
   GCellGrid::GCellGrid ( KatabaticEngine* ktbt )
     : Grid<GCell>   (ktbt->getCell()->getAbutmentBox())
     , _katabatic    (ktbt)
+    , _hEdgeCapacity(ktbt->getConfiguration()->getHEdgeCapacity())
+    , _vEdgeCapacity(ktbt->getConfiguration()->getVEdgeCapacity())
   { }
 
 

katabatic/src/LayerAssign.cpp

@@ -277,14 +277,24 @@ namespace Katabatic {
 
     Session::revalidate ();
 
+  // Look for RoutingPad overload.
+    vector<GCell*> gcells = *(_gcellGrid->getGCellVector());
+    for ( size_t i=0 ; i<gcells.size() ; ++i ) {
+      gcells[i]->rpDesaturate ( globalNets );
+    }
+
+    if ( getConfiguration()->getAllowedDepth() > 2) {
       for ( int i=0 ; i < 3 ; i++ ) {
-      _desaturate ( 1, globalNets, total, global );
+        for ( size_t depth=1 ; depth < getConfiguration()->getAllowedDepth()-2; ++depth ) {
-      _desaturate ( 2, globalNets, total, global );
+          _desaturate ( depth, globalNets, total, global );
+          if ( (depth > 1) and ((depth-1)%2 == 1) ) Session::revalidate ();
+        }
 
         globalNets.clear ();
 
+        if ( not _gcellGrid->updateDensity () ) break;
+      }
       Session::revalidate ();
-      if ( !_gcellGrid->updateDensity () ) break;
     }
   //refresh ( false );
 
@@ -297,20 +307,6 @@ namespace Katabatic {
       _print ( *inet );
 #endif
 
-  // Look for RoutingPad overload.
-    vector<GCell*> gcells = *(_gcellGrid->getGCellVector());
-    for ( size_t i=0 ; i<gcells.size() ; ++i ) {
-      gcells[i]->rpDesaturate ( globalNets );
-      // set<RoutingPad*> rps;
-      // gcells[i]->getRoutingPads ( rps );
-
-      // if ( rps.size() > 7 ) {
-      //   cerr << "[WARNING] " << gcells[i] << "has " << rps.size() << " terminals." << endl;
-      // }
-    }
-
-    Session::revalidate ();
-
     Session::setWarnGCellOverload ( true );
     _gcellGrid->checkDensity ();
 

katabatic/src/katabatic/Configuration.h

@@ -74,6 +74,8 @@ namespace Katabatic {
       virtual float              getSaturateRatio   () const = 0;
       virtual size_t             getSaturateRp      () const = 0;
       virtual DbU::Unit          getGlobalThreshold () const = 0;
+      virtual size_t             getHEdgeCapacity   () const = 0;
+      virtual size_t             getVEdgeCapacity   () const = 0;
       virtual void               setAllowedDepth    ( size_t ) = 0;
       virtual void               setSaturateRatio   ( float ) = 0;
       virtual void               setSaturateRp      ( size_t ) = 0;
@@ -116,6 +118,8 @@ namespace Katabatic {
       virtual float                  getSaturateRatio      () const;
       virtual size_t                 getSaturateRp         () const;
       virtual DbU::Unit              getGlobalThreshold    () const;
+      virtual size_t                 getHEdgeCapacity      () const;
+      virtual size_t                 getVEdgeCapacity      () const;
       virtual void                   setAllowedDepth       ( size_t );
       virtual void                   setSaturateRatio      ( float );
       virtual void                   setSaturateRp         ( size_t );
@@ -135,6 +139,8 @@ namespace Katabatic {
       size_t        _saturateRp;
       DbU::Unit     _globalThreshold;
       size_t        _allowedDepth;
+      size_t        _hEdgeCapacity;
+      size_t        _vEdgeCapacity;
     private:
                              ConfigurationConcrete ( const ConfigurationConcrete& );
       ConfigurationConcrete& operator=             ( const ConfigurationConcrete& );

katabatic/src/katabatic/GCellGrid.h

@@ -51,6 +51,9 @@ namespace Katabatic {
 
     public:
               Cell*            getCell             () const;
+      inline  KatabaticEngine* getKatabatic        () const;
+      inline  size_t           getHEdgeCapacity    () const;
+      inline  size_t           getVEdgeCapacity    () const;
               Interval         getUSide            ( unsigned int ) const;
               void             updateContacts      ( bool openSession=true );
               size_t           checkDensity        () const;
@@ -64,6 +67,8 @@ namespace Katabatic {
     // Attributes.
     protected:
       KatabaticEngine* _katabatic;
+      size_t           _hEdgeCapacity;
+      size_t           _vEdgeCapacity;
 
     // Constructors & Destructors.
     protected:
@@ -81,6 +86,11 @@ namespace Katabatic {
   };
 
 
+  inline  KatabaticEngine* GCellGrid::getKatabatic     () const { return _katabatic; }
+  inline  size_t           GCellGrid::getHEdgeCapacity () const { return _hEdgeCapacity; }
+  inline  size_t           GCellGrid::getVEdgeCapacity () const { return _vEdgeCapacity; }
+
+
 } // End of Katabatic namespace.