* ./katabatic:

- Change: In loadGlobalRouting(), more exlicit message as to why a net is
        filtered out the routing set (POWER, GROUND, CLOCK or BLOCKAGE).
    - New: ChipTool, module with utilities specific to chip routing. Containing
        a function to pre-break wires around a block.
    - New: In loadGlobalRouting/GCellConfiguration, adds supports for RoutingPad
        connected on chip's pad.
    - New: In GCellGrid/GCell, can compute the density in three modes: average,
        max of H/V and max of layer. Currently implemented in getMaxHVDensity(),
        should be unificated with getDensity(). Used for display purposes.
    - Bug: In AutoContact, when splitting a contact, add a specific check for
        "one layer span".
    - Bug: In AutoSegment::canMoveUp(), do not move up fixed segments.

katabatic/src/AutoContact.cpp

@@ -1447,6 +1447,12 @@ namespace {
 
     _contact->invalidate ();
 
+    if ( zMax == zMin ) {
+      ltrace(200) << "NULL Z span, no layer change." << endl;
+      ltraceout(200);
+      return;
+    }
+
     if ( zMax-zMin < 2 ) {
       const Layer* contactLayer = _routingGauge->getContactLayer(zMin);
       _contact->setLayer ( contactLayer );

katabatic/src/AutoHorizontal.cpp

@@ -120,8 +120,16 @@ namespace {
     if ( slacken(contact) ) return;
 
     size_t       depth = Session::getRoutingGauge()->getLayerDepth   ( segment->getLayer() );
-    Layer*       contactLayer = Session::getRoutingGauge()->getContactLayer ( depth );
+    Layer*       contactLayer = NULL;
-    const Layer* slackLayer   = Session::getRoutingGauge()->getRoutingLayer ( depth + 1 );
+    const Layer* slackLayer   = NULL;
+
+    if ( depth+1 < Session::getRoutingGauge()->getDepth() ) {
+      contactLayer = Session::getRoutingGauge()->getContactLayer ( depth );
+      slackLayer   = Session::getRoutingGauge()->getRoutingLayer ( depth + 1 );
+    } else {
+      contactLayer = Session::getRoutingGauge()->getContactLayer ( depth-1 );
+      slackLayer   = Session::getRoutingGauge()->getRoutingLayer ( depth );
+    }
 
     if ( fromSource ) segment->getSourceHook()->detach ();
     else              segment->getTargetHook()->detach ();

katabatic/src/AutoSegment.cpp

@@ -617,8 +617,11 @@ namespace Katabatic {
     if ( processeds and (processeds->find(this) != processeds->end()) ) return;
 
     if ( ( axis != getAxis() ) and isFixed() ) {
-      cerr << Error("AutoSegment::setAxis(): Cannot move a fixed segment.\n"
+      cerr << Error("AutoSegment::setAxis(): Cannot move fixed segment to %s.\n"
-                    "        (on: %s)",_getString().c_str()) << endl;
+                    "        (on: %s)"
+                   ,DbU::getValueString(axis).c_str()
+                   ,_getString().c_str()
+                   ) << endl;
     }
 
     if ( _isUnsetAxis and (flags & AxisSet) ) {
@@ -1292,7 +1295,7 @@ namespace Katabatic {
   {
     ltrace(200) << "AutoSegment::canMoveUp()" << endl;
 
-    if ( isLayerChange() ) return false;
+    if ( isLayerChange() or isFixed() ) return false;
     if ( isTerminal() and isLocal() ) return false;
 
     size_t depth = Session::getRoutingGauge()->getLayerDepth(getLayer()) + 2;
@@ -1311,10 +1314,9 @@ namespace Katabatic {
     }
 
     bool   hasGlobalSegment = false;
-    size_t collapseds       = 0;
     if ( propagate ) {
       forEach ( AutoSegment*, isegment, getCollapseds() ) {
-        collapseds++;
+        if ( isegment->isFixed () ) return false;
         if ( isegment->isGlobal() ) hasGlobalSegment = true;
 
         isegment->getGCells ( gcells );

katabatic/src/CMakeLists.txt

@@ -41,6 +41,7 @@ endif ( CHECK_DETERMINISM )
                                        LoadGrByNet.cpp
                                        NetConstraints.cpp
                                        NetOptimals.cpp
+				       ChipTools.cpp
                                        KatabaticEngine.cpp
                                        GraphicKatabaticEngine.cpp
                        )

katabatic/src/ChipTools.cpp

@@ -0,0 +1,186 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
+//
+// ===================================================================
+//
+// $Id$
+//
+// x-----------------------------------------------------------------x
+// |                                                                 |
+// |                   C O R I O L I S                               |
+// |        K a t a b a t i c  -  Routing Toolbox                    |
+// |                                                                 |
+// |  Author      :                    Jean-Paul CHAPUT              |
+// |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
+// | =============================================================== |
+// |  C++ Module  :       "./ChipTools.cpp"                          |
+// | *************************************************************** |
+// |  U p d a t e s                                                  |
+// |                                                                 |
+// x-----------------------------------------------------------------x
+
+
+#include  "hurricane/Warning.h"
+#include  "hurricane/Bug.h"
+#include  "hurricane/DataBase.h"
+#include  "hurricane/Technology.h"
+#include  "hurricane/Horizontal.h"
+#include  "hurricane/Vertical.h"
+#include  "crlcore/RoutingGauge.h"
+#include  "crlcore/AllianceFramework.h"
+#include  "katabatic/Session.h"
+#include  "katabatic/AutoContact.h"
+#include  "katabatic/AutoSegment.h"
+#include  "katabatic/AutoHorizontal.h"
+#include  "katabatic/AutoVertical.h"
+#include  "katabatic/GCell.h"
+#include  "katabatic/GCellGrid.h"
+#include  "katabatic/KatabaticEngine.h"
+
+
+namespace {
+
+
+  using namespace std;
+  using namespace CRL;
+  using namespace Hurricane;
+  using namespace Katabatic;
+
+
+  enum SegmentType { LocalSegments=0x10, GlobalSegments=0x20 };
+
+
+  bool  isChip ( Cell* cell, Instance*& core )
+  {
+    AllianceFramework* af = AllianceFramework::get();
+    int pads  = 0;
+    int cores = 0;
+
+    forEach ( Instance*, iinstance, cell->getInstances() ) {
+      if ( af->isPad(iinstance->getMasterCell()) )
+        ++pads;
+      else {
+        ++cores;
+        core = *iinstance;
+      }
+    }
+
+    return (pads > 0) and (cores == 1);
+  }
+
+
+  void  breakSegments ( GCell* begin, GCell* end, Layer::Mask mask, unsigned int flags )
+  {
+    for ( GCell* gcell=begin ; gcell != NULL ; ) {
+      ltrace(200) << "Pre-break in " << gcell << endl;
+
+      if ( (flags & Constant::Horizontal) and (flags & GlobalSegments) ) {
+        vector<AutoSegment*>* hsegments = gcell->getHSegments();
+        for ( size_t i=0 ; i<(*hsegments).size() ; ++i ) {
+          if ( not ((*hsegments)[i]->getLayer()->getMask() & mask) ) continue;
+          
+          ltrace(200) << "Pre-break: " << (*hsegments)[i] << " @" << gcell << endl;
+          (*hsegments)[i]->makeDogLeg ( gcell, true );
+        }
+        
+        if ( gcell == end ) break;
+        gcell = gcell->getUp();
+      }
+
+      if ( (flags & Constant::Vertical) and (flags & GlobalSegments) ) {
+        vector<AutoSegment*>* vsegments = gcell->getVSegments();
+        for ( size_t i=0 ; i<(*vsegments).size() ; ++i ) {
+          if ( not ((*vsegments)[i]->getLayer()->getMask() & mask) ) continue;
+          
+          ltrace(200) << "Pre-break: " << (*vsegments)[i] << " @" << gcell << endl;
+          (*vsegments)[i]->makeDogLeg ( gcell, true );
+        }
+        
+        if ( gcell == end ) break;
+        gcell = gcell->getUp();
+      }
+
+      if ( flags & GlobalSegments ) {
+        vector<AutoContact*>* contacts = gcell->getContacts();
+        vector<AutoSegment*>  segments;
+        for ( size_t i=0 ; i<contacts->size() ; i++ ) {
+          forEach ( Component*, component, (*contacts)[i]->getSlaveComponents() ) {
+            Segment*     segment      = dynamic_cast<Segment*>(*component);
+            AutoSegment* autoSegment  = Session::lookup ( segment );
+
+            if ( autoSegment and (autoSegment->getDirection() & flags) )
+              segments.push_back ( autoSegment );
+          }
+        }
+
+        for ( size_t i=0 ; i<segments.size() ; ++i ) {
+          ltrace(200) << "Pre-break: "
+                      << segments[i]->getDirection() << "&" << flags
+                      << " " << segments[i] << endl;
+          segments[i]->makeDogLeg ( gcell, true );
+        }
+      }
+    }
+
+    Session::revalidate ();
+  }
+
+
+}  // End of anonymous namespace.
+
+
+namespace Katabatic {
+
+
+  void  KatabaticEngine::slackenBorder ( Box bb, Layer::Mask mask, unsigned int flags )
+  {
+    GCell*      begin = getGCellGrid()->getGCell ( Point(bb.getXMin(),bb.getYMin()) );
+    GCell*      end   = getGCellGrid()->getGCell ( Point(bb.getXMin(),bb.getYMax()) );
+
+    breakSegments ( begin, end, mask, flags );
+
+    begin = getGCellGrid()->getGCell ( Point(bb.getXMax(),bb.getYMin()) );
+    end   = getGCellGrid()->getGCell ( Point(bb.getXMax(),bb.getYMax()) );
+
+    breakSegments ( begin, end, mask, flags );
+
+    Session::revalidate ();
+  }
+
+
+  void  KatabaticEngine::slackenBlockIos ( Instance* core )
+  {
+    cmess1 << "  o  Slackening IOs of <" << core->getName() << ">." << endl;
+
+    Layer::Mask mask = Session::getRoutingLayer(1)->getMask();
+    slackenBorder ( core->getBoundingBox().inflate(DbU::lambda(50.0))
+                  , mask
+                  , GlobalSegments|Constant::Horizontal
+                  );
+  }
+
+
+  void  KatabaticEngine::chipPrep ()
+  {
+    Instance* core = NULL;
+    if ( isChip(getCell(),core) ) {
+      slackenBlockIos ( core );
+
+      // cmess1 << "  o  Slackening Pads-connected segments." << endl;
+      // slackenBorder ( getCell()->getBoundingBox().inflate(DbU::lambda(-425.0))
+      //               , Session::getRoutingLayer(3)->getMask()
+      //               , GlobalSegments|LocalSegments|Constant::Horizontal
+      //               );
+      // slackenBorder ( getCell()->getBoundingBox().inflate(DbU::lambda(-425.0))
+      //               , Session::getRoutingLayer(1)->getMask()
+      //               , GlobalSegments|Constant::Horizontal
+      //               );
+    }
+  }
+
+
+
+}  // End of Katabatic namespace.

katabatic/src/GCell.cpp

@@ -191,7 +191,7 @@ namespace Katabatic {
     
   //int difference = floatDifference(getDensity(),threshold,10000);
     ltrace(190) << "GCell:isAboveDensity() " << threshold << " diff:" << difference << endl;
-    return (difference > 0.0);
+    return (difference >= 0.0);
   }
 
 
@@ -360,12 +360,13 @@ namespace Katabatic {
   {
     if (_invalid and update) const_cast<GCell*>(this)->updateDensity();
 
+    if ( getGCellGrid()->getDensityMode() == GCellGrid::MaxHVDensity ) {
       size_t hplanes  = 0;
       size_t vplanes  = 0;
       float  hdensity = 0.0;
       float  vdensity = 0.0;
 
-    for ( size_t i=0 ; i<_depth ; i++ ) {
+      for ( size_t i=_pinDepth ; i<_depth ; i++ ) {
         if ( i%2 ) { hdensity += _densities[i]; ++hplanes; }
         else       { vdensity += _densities[i]; ++vplanes; }
       }
@@ -373,7 +374,22 @@ namespace Katabatic {
       if (hplanes) hdensity /= hplanes;
       if (vplanes) vdensity /= vplanes;
 
-    return (hdensity > vdensity) ? hdensity : vdensity;
+      return roundfp ( (hdensity > vdensity) ? hdensity : vdensity );
+    }
+
+    if ( getGCellGrid()->getDensityMode() == GCellGrid::MaxLayerDensity ) {
+      float density = 0.0;
+      for ( size_t i=_pinDepth ; i<_depth ; i++ ) {
+        if ( _densities[i] > density ) density = _densities[i];
+      }
+      return roundfp(density);
+    }
+
+    float density = 0.0;
+    for ( size_t i=_pinDepth ; i<_depth ; i++ )
+      density += _densities[i];
+
+    return roundfp ( density/((float)(_depth-_pinDepth)) );
   }
 
 
@@ -409,8 +425,22 @@ namespace Katabatic {
     _blockages[depth] += length;
     _invalid = true;
 
-  //cerr << "GCell:addBlockage() <id:" << getIndex() << "> "
+    // if ( _blockages[depth] >= 8.0 ) {
-  //     << depth << ":" << _blockages[depth] << endl;
+    //   cinfo << Warning("%s is under power ring.",getString(this).c_str()) << endl;
+
+    //   unsigned int modulo = depth % 2;
+
+    //   for ( unsigned int parallel=0 ; parallel < _depth ; ++parallel ) {
+    //     if ( parallel%2 == modulo ) {
+    //       _blockages[parallel] = 10.0;
+    //       cinfo << "  Blocking [" << parallel << "]:"
+    //             << Session::getRoutingLayer(parallel)->getName() << endl;
+    //     }
+    //   }
+    // }
+
+    ltrace(300) << "GCell:addBlockage() " << this << " "
+                << depth << ":" << _blockages[depth] << endl;
   }
 
 
@@ -678,13 +708,14 @@ namespace Katabatic {
     if ( !Session::getDemoMode() && Session::getWarnGCellOverload() ) {
       for ( size_t i=0 ; i<_depth ; i++ ) {
         if ( _densities[i] > 1.0 ) {
-          cerr << Warning("%s @%dx%d overloaded in %s (M2:%.2f M3:%.2f M4:%.2f M5:%.2f)"
+          cerr << Warning("%s @%dx%d overloaded in %s (M2:%.2f M3:%.2f,%.2f M4:%.2f M5:%.2f)"
                          ,_getString().c_str()
                          ,getColumn()
                          ,getRow()
                          ,getString(Session::getRoutingGauge()->getRoutingLayer(i)->getName()).c_str()
                          ,_densities[1]
                          ,_densities[2]
+                         ,_blockages[2]
                          ,_densities[3]
                          ,_densities[4]
                          )

katabatic/src/GCellGrid.cpp

@@ -56,6 +56,7 @@ namespace Katabatic {
   GCellGrid::GCellGrid ( KatabaticEngine* ktbt )
     : Grid<GCell>   (ktbt->getCell()->getAbutmentBox())
     , _katabatic    (ktbt)
+    , _densityMode  (MaxLayerDensity)
     , _hEdgeCapacity(ktbt->getConfiguration()->getHEdgeCapacity())
     , _vEdgeCapacity(ktbt->getConfiguration()->getVEdgeCapacity())
   { }

katabatic/src/KatabaticEngine.cpp

@@ -65,7 +65,7 @@ namespace {
 
     layers.clear ();
 
-    if ( source ) {
+    if ( source != NULL ) {
       forEach ( Hook*, ihook, source->getBodyHook()->getSlaveHooks() ) {
         ltrace(88) << "* Slave: " << (*ihook)->getComponent() << endl;
         if ( (*ihook)->getComponent() == segment ) continue;
@@ -73,7 +73,7 @@ namespace {
       }
     }
 
-    if ( target ) {
+    if ( target != NULL ) {
       forEach ( Hook*, ihook, target->getBodyHook()->getSlaveHooks() ) {
         ltrace(88) << "* Slave: " << (*ihook)->getComponent() << endl;
         if ( (*ihook)->getComponent() == segment ) continue;
@@ -82,7 +82,7 @@ namespace {
     }
 
     size_t supplemental = (layers.find(segment->getLayer()) == layers.end()) ? 1 : 0;
-    if ( source->getAnchor() || target->getAnchor() ) supplemental++;
+    if ( (source->getAnchor() != NULL) or (target->getAnchor() != NULL) ) supplemental++;
 
 #if 0
     bool  bottomConnect = false;
@@ -508,20 +508,29 @@ namespace Katabatic {
     AllianceFramework* af = AllianceFramework::get ();
     if ( nets.empty() ) {
       forEach ( Net*, net, _cell->getNets() ) {
-        if ( net->getType() == Net::Type::POWER  ) continue;
+        const char* excludedType = NULL;
-        if ( net->getType() == Net::Type::GROUND ) continue;
+        if ( net->getType() == Net::Type::POWER  ) excludedType = "POWER";
-        if ( net->getType() == Net::Type::CLOCK  ) continue;
+        if ( net->getType() == Net::Type::GROUND ) excludedType = "GROUND";
+        if ( net->getType() == Net::Type::CLOCK  ) excludedType = "CLOCK";
+        if ( excludedType ) {
+          cerr << Warning("%s is not a routable net (%s,excluded)."
+                         ,getString(*net).c_str(),excludedType) << endl;
+          continue;
+        }
         if ( af->isOBSTACLE(net->getName()) ) continue;
         _routingNets.insert ( *net );
       }
     } else {
       NetSet::iterator  it = nets.begin();
       for ( ; it != nets.end() ; it++ ) {
-        if (   ( (*it)->getType() == Net::Type::POWER  )
+        const char* excludedType = NULL;
-            || ( (*it)->getType() == Net::Type::GROUND )
+        if ( (*it)->getType() == Net::Type::POWER  ) excludedType = "POWER";
-            || ( (*it)->getType() == Net::Type::CLOCK  )
+        if ( (*it)->getType() == Net::Type::GROUND ) excludedType = "GROUND";
-            || ( af->isOBSTACLE((*it)->getName()) ) ) {
+        if ( (*it)->getType() == Net::Type::CLOCK  ) excludedType = "CLOCK";
-          cerr << Warning("%s is not a routable net, removed from set.",getString(*it).c_str()) << endl;
+        if ( af->isOBSTACLE((*it)->getName()) )      excludedType = "BLOCKAGE";
+        if ( excludedType ) {
+          cerr << Warning("%s is not a routable net (%s), removed from set."
+                         ,getString(*it).c_str(),excludedType) << endl;
         } else
           _routingNets.insert ( *it );
       }
@@ -745,6 +754,11 @@ namespace Katabatic {
         continue;
       }
     
+      if ( Session::lookup(*segment) == NULL ) {
+        ltrace(90) << "* Not associated to an AutoSegment: " << *segment << endl;
+        continue;
+      }
+
       if ( not isTopAndBottomConnected(*segment,connectedLayers) ) {
         nullSegments.push_back ( *segment );
         ltrace(90) << "* Null Length: " << *segment << endl;
@@ -756,6 +770,11 @@ namespace Katabatic {
       Contact* source = dynamic_cast<Contact*>(nullSegments[i]->getSource());
       Contact* target = dynamic_cast<Contact*>(nullSegments[i]->getTarget());
 
+      if ( (source == NULL) or (target == NULL) ) {
+        cerr << Error("Unconnected source/target on %s.",getString(nullSegments[i]).c_str()) << endl;
+        continue;
+      }
+
       if ( source->getAnchor() ) {
         if ( target->getAnchor() ) {
           continue;

katabatic/src/LoadGrByNet.cpp

@@ -44,6 +44,7 @@
 #include  "hurricane/Vertical.h"
 #include  "hurricane/Horizontal.h"
 
+#include  "crlcore/AllianceFramework.h"
 #include  "crlcore/RoutingGauge.h"
 #include  "crlcore/Measures.h"
 
@@ -1142,6 +1143,7 @@ namespace {
              void          _GCell_GlobalContacts  ( bool          split
                                                   , AutoContact*  southWestContact=NULL
                                                   , AutoContact*  northEastContact=NULL );
+             void          _GCell_xG_1Pad         ();
              void          _GCell_1G_1L1          ();
              void          _GCell_1G_xL1          ();
              void          _GCell_xG_xL1_xL3      ();
@@ -1198,6 +1200,8 @@ namespace {
                     , GCELL_4G_3L1     = 4+(3<<3)
                     , GCELL_4G_4L1     = 4+(4<<3)
                     , GCELL_4G_1L3     = 4+(1<<9)
+                    , GCELL_1G_1Pad    = 1+(1<<12)
+                    , GCELL_2G_1Pad    = 2+(1<<12)
                     };
 
     protected:
@@ -1221,6 +1225,7 @@ namespace {
           unsigned int L1      : 3;
           unsigned int L2      : 3;
           unsigned int L3      : 3;
+          unsigned int Pad     : 3;
         } fields;
       };
 
@@ -1249,18 +1254,18 @@ namespace {
   GCellConfiguration::GCellConfiguration ( GCellGrid*   gcellGrid
                                          , Hook*        fromHook
                                          , AutoContact* sourceContact )
-    : _state()
+    : _state           ()
-    , _topology(0)
+    , _topology        (0)
-    , _gcell(NULL)
+    , _gcell           (NULL)
-    , _sourceContact(sourceContact)
+    , _sourceContact   (sourceContact)
     , _southWestContact(NULL)
     , _northEastContact(NULL)
-    , _fromHook(fromHook)
+    , _fromHook        (fromHook)
-    , _east(NULL)
+    , _east            (NULL)
-    , _west(NULL)
+    , _west            (NULL)
-    , _north(NULL)
+    , _north           (NULL)
-    , _south(NULL)
+    , _south           (NULL)
-    , _routingPads()
+    , _routingPads     ()
   {
     ltrace(99) << "GCellConfiguration::GCellConfiguration ()" << endl;
     ltracein(99);
@@ -1286,6 +1291,9 @@ namespace {
         RoutingPad* rp = dynamic_cast<RoutingPad*>(hook->getComponent());
 
         if ( rp ) {
+          if ( AllianceFramework::get()->isPad(rp->_getEntityAsComponent()->getCell()) ) {
+            _state.fields.Pad++;
+          } else {
             const Layer* layer = rp->getLayer();
             if      ( layer == Session::getRoutingLayer(0) ) _state.fields.L1++; // M1 V
             else if ( layer == Session::getRoutingLayer(1) ) _state.fields.L2++; // M2 H
@@ -1299,6 +1307,7 @@ namespace {
                    << endl;
               continue;
             }
+          }
 
           ltrace(99) << "RoutingPad " << rp << endl;
           _routingPads.push_back ( rp );
@@ -1343,6 +1352,8 @@ namespace {
     bool straightLine = false;
 
     switch ( _state.state ) {
+      case GCELL_1G_1Pad:
+      case GCELL_2G_1Pad:    _GCell_xG_1Pad (); break;
       case GCELL_1G_1L1:     _GCell_1G_1L1  (); break;
       case GCELL_1G_2L1:
       case GCELL_1G_3L1:
@@ -1402,13 +1413,15 @@ namespace {
                             );
         break;
       default:
-        cerr << Bug("Unmanaged Configuration [%d] = [%d+%d+%d+%d] %s"
+        cerr << Bug("Unmanaged Configuration [%d] = [%d+%d+%d+%d,%d] %s in %s"
                    ,_state.state
                    ,_state.fields.globals
                    ,_state.fields.L1     
                    ,_state.fields.L2     
                    ,_state.fields.L3
+                   ,_state.fields.Pad
                    ,_net->_getString().c_str()
+                   ,getString(_gcell).c_str()
                    ) << endl;
         _GCell_GlobalContacts ( false );
     }
@@ -1558,33 +1571,33 @@ namespace {
         __routingPadAutoSegments.insert ( make_pair(rp,segment) );
 
       // Associate a M2 fixed protection to punctual M3 terminals.
-        if (   ( rp->getLayer() == Session::getRoutingLayer(2) )
+        // if (   ( rp->getLayer() == Session::getRoutingLayer(2) )
-           and ( sourcePosition == targetPosition ) ) {
+        //    and ( sourcePosition == targetPosition ) ) {
-          AutoContact* sourceM2 = AutoContact::fromRp ( sourceGCell
+        //   AutoContact* sourceM2 = AutoContact::fromRp ( sourceGCell
-                                                      , rp
+        //                                               , rp
-                                                      , Session::getContactLayer(1)
+        //                                               , Session::getContactLayer(1)
-                                                      , sourcePosition
+        //                                               , sourcePosition
-                                                      , DbU::lambda(1.0), DbU::lambda(1.0)
+        //                                               , DbU::lambda(1.0), DbU::lambda(1.0)
-                                                      , true
+        //                                               , true
-                                                      );
+        //                                               );
 
-          AutoContact* targetM2 = AutoContact::fromRp ( sourceGCell
+        //   AutoContact* targetM2 = AutoContact::fromRp ( sourceGCell
-                                                      , rp
+        //                                               , rp
-                                                      , Session::getContactLayer(1)
+        //                                               , Session::getContactLayer(1)
-                                                      , targetPosition
+        //                                               , targetPosition
-                                                      , DbU::lambda(1.0), DbU::lambda(1.0)
+        //                                               , DbU::lambda(1.0), DbU::lambda(1.0)
-                                                      , true
+        //                                               , true
-                                                      );
+        //                                               );
 
-          AutoSegment* segmentM2 = AutoSegment::create ( sourceM2
+        //   AutoSegment* segmentM2 = AutoSegment::create ( sourceM2
-                                                       , targetM2
+        //                                                , targetM2
-                                                       , Constant::Horizontal
+        //                                                , Constant::Horizontal
-                                                       , AutoSegment::Local
+        //                                                , AutoSegment::Local
-                                                       , true
+        //                                                , true
-                                                       , false
+        //                                                , false
-                                                       );
+        //                                                );
-          segmentM2->setFixed ( true );
+        //   segmentM2->setFixed ( true );
-        }
+        // }
       }
 
       if ( not (haccess xor (direction == Constant::Horizontal)) ) {
@@ -1642,7 +1655,10 @@ namespace {
   }
 
 
-  AutoContact* GCellConfiguration::_GCell_rp_Access ( GCell* gcell, RoutingPad* rp, bool haccess, bool forceVSmall )
+  AutoContact* GCellConfiguration::_GCell_rp_Access ( GCell*      gcell
+                                                    , RoutingPad* rp
+                                                    , bool        haccess
+                                                    , bool        forceVSmall )
   {
     ltrace(99) << "_GCell_rp_Access()" << endl;
     ltracein(99);
@@ -1842,6 +1858,79 @@ namespace {
   }
 
 
+  void  GCellConfiguration::_GCell_xG_1Pad ()
+  {
+    ltrace(99) << "_GCell_1G_1Pad() [Managed Configuration - Optimized] " << _topology << endl;
+    ltracein(99);
+
+    Point        position     = _routingPads[0]->getCenter();
+    AutoContact* source       = NULL;
+    AutoContact* target       = NULL;
+    AutoContact* swContact    = NULL;
+    AutoContact* neContact    = NULL;
+    GCell*       gcell        = Session::getKatabatic()->getGCellGrid()->getGCell(position);
+
+    source = AutoContact::fromRp ( gcell
+                                 , _routingPads[0]
+                                 , Session::getContactLayer(3)
+                                 , position
+                                 , DbU::lambda(1.0), DbU::lambda(1.0)
+                                 , true
+                                 );
+    target = AutoContact::create ( gcell, _routingPads[0]->getNet(), Session::getContactLayer(2) );
+
+    AutoSegment* segment = AutoSegment::create ( source
+                                               , target
+                                               , Constant::Horizontal
+                                               , AutoSegment::Local
+                                               , true                 // Terminal.
+                                               , false                // Collapsed.
+                                               );
+    segment->setLayer ( Session::getRoutingLayer(3) );
+
+    if ( _topology & (GLOBAL_HORIZONTAL_END|GLOBAL_BEND|GLOBAL_HORIZONTAL) ) {
+      source = target;
+      target = AutoContact::create ( gcell, _routingPads[0]->getNet(), Session::getContactLayer(1) );
+
+      segment = AutoSegment::create ( source
+                                    , target
+                                    , Constant::Vertical
+                                    , AutoSegment::Local
+                                    , false    // Terminal.
+                                    , false    // Collapsed.
+                                    );
+    }
+
+    swContact = target;
+    neContact = swContact;
+
+    if ( _topology & (GLOBAL_HORIZONTAL|GLOBAL_VERTICAL) ) {
+      neContact = AutoContact::create ( gcell, _routingPads[0]->getNet(), Session::getContactLayer(1) );
+
+      int direction;
+      if ( _topology & GLOBAL_HORIZONTAL ) {
+        direction = Constant::Vertical;
+        swContact->setVAlignate ( true );
+      } else {
+        direction = Constant::Horizontal;
+        swContact->setHAlignate ( true );
+      }
+
+      segment = AutoSegment::create ( swContact
+                                    , neContact
+                                    , direction
+                                    , AutoSegment::Local
+                                    , false                // Terminal.
+                                    , false                // Collapsed.
+                                    );
+    }
+
+    _GCell_GlobalContacts ( (_topology & (GLOBAL_HORIZONTAL|GLOBAL_VERTICAL)), swContact, neContact );
+
+    ltraceout(99);
+  }
+
+
   void  GCellConfiguration::_GCell_1G_1L1 ()
   {
     ltrace(99) << "_GCell_1G_1L1() [Managed Configuration - Optimized] " << _topology << endl;
@@ -2296,8 +2385,7 @@ namespace Katabatic {
   void  KatabaticEngine::_loadGrByNet ()
   {
     cmess1 << "  o  Loading Nets global routing from Knik." << endl;
-
+    cmess1 << Dots::asDouble("     - Saturation",getMeasure<double>(getCell(),"Sat.")->getData()) << endl;
-    cout << Dots::asDouble("     - Saturation",getMeasure<double>(getCell(),"Sat.")->getData()) << endl;
 
     startMeasures ();
     Session::open ( this );

katabatic/src/katabatic/GCell.h

@@ -135,6 +135,7 @@ namespace Katabatic {
       inline  float                 getDensity          ( size_t depth, bool update=true  ) const;
               float                 getDensity          ( bool update=true ) const;
               float                 getMaxHVDensity     ( bool update=true ) const;
+      inline  float                 getBlockage         ( unsigned int depth ) const;
               float                 getStiffness        () const;
       inline  unsigned int          getSegmentCount     () const;
       inline  unsigned int          getRoutedCount      () const;
@@ -252,6 +253,9 @@ namespace Katabatic {
   inline  float  GCell::getDensity ( size_t depth, bool update  ) const
   { if (_invalid and update) const_cast<GCell*>(this)->updateDensity(); return _densities[depth]; }
 
+  inline  float  GCell::getBlockage ( unsigned int depth ) const
+  { return (depth<_depth) ? _blockages[depth] : 0.0; }
+
   inline  void  GCell::addVSegment ( AutoSegment* segment )
   { invalidate(); _vsegments.push_back(segment); }
 

katabatic/src/katabatic/GCellGrid.h

@@ -48,10 +48,16 @@ namespace Katabatic {
 
  
   class GCellGrid : public Grid<GCell> {
+    public:
+      enum Flags { AverageDensity  = 1
+                 , MaxHVDensity    = 2
+                 , MaxLayerDensity = 3
+                 };
 
     public:
               Cell*            getCell             () const;
       inline  KatabaticEngine* getKatabatic        () const;
+      inline  int              getDensityMode      () const;
       inline  size_t           getHEdgeCapacity    () const;
       inline  size_t           getVEdgeCapacity    () const;
               Interval         getUSide            ( unsigned int ) const;
@@ -59,6 +65,7 @@ namespace Katabatic {
               size_t           checkDensity        () const;
               size_t           updateDensity       ();
               bool             checkEdgeSaturation ( float threshold ) const;
+      inline  void             setDensityMode      ( int );
               void             _xmlWrite           ( ostream& );
       virtual Record*          _getRecord          () const;
       virtual string           _getString          () const;
@@ -67,6 +74,7 @@ namespace Katabatic {
     // Attributes.
     protected:
       KatabaticEngine* _katabatic;
+      int              _densityMode;
       size_t           _hEdgeCapacity;
       size_t           _vEdgeCapacity;
 
@@ -87,8 +95,10 @@ namespace Katabatic {
 
 
   inline  KatabaticEngine* GCellGrid::getKatabatic     () const { return _katabatic; }
+  inline  int              GCellGrid::getDensityMode   () const { return _densityMode; }
   inline  size_t           GCellGrid::getHEdgeCapacity () const { return _hEdgeCapacity; }
   inline  size_t           GCellGrid::getVEdgeCapacity () const { return _vEdgeCapacity; }
+  inline  void             GCellGrid::setDensityMode   ( int mode ) { _densityMode=mode; }
 
 
 } // End of Katabatic namespace.

katabatic/src/katabatic/KatabaticEngine.h

@@ -33,12 +33,13 @@
 
 #include  "hurricane/Timer.h"
 #include  "hurricane/DbU.h"
+#include  "hurricane/Layer.h"
 #include  "hurricane/Net.h"
 
 namespace Hurricane {
   class Name;
-  class Layer;
   class Cell;
+  class Instance;
 }
 
 #include  "crlcore/ToolEngine.h"
@@ -66,6 +67,7 @@ namespace Katabatic {
   using Hurricane::Net;
   using Hurricane::Nets;
   using Hurricane::Cell;
+  using Hurricane::Instance;
   using CRL::RoutingGauge;
   using CRL::RoutingLayerGauge;
   using CRL::ToolEngine;
@@ -160,6 +162,9 @@ namespace Katabatic {
       virtual void                 createDetailedGrid        ();
       virtual void                 loadGlobalRouting         ( unsigned int method, NetSet& );
               void                 layerAssign               ( unsigned int method );
+              void                 slackenBorder             ( Box bb, Layer::Mask, unsigned int flags );
+              void                 slackenBlockIos           ( Instance* core );
+              void                 chipPrep                  ();
     //        void                 computeNetConstraints     ();
     //        void                 computeNetOptimals        ();
       virtual void                 finalizeLayout            ();