* ./kite:

- Change: In Configuration, sets the default expandStep parameter to
        0.99 (gives better results).
    - Change: In KiteEngine::_computeCagedConstraints(), detect and build
        a list of segments on which caged constraints are incompatibles
        (tearing effect shown in ieee_division). All caged constraints
        functions are modificated accordingly.
    - Change: In Session::_revalidate(), makes doglegs on Segment with
        incompatible caged constraints.
    - Mark: vld & ieee_division works.

kite/src/Configuration.cpp

@@ -66,7 +66,7 @@ namespace Kite {
     , _base               (base)
     , _postEventCb        ()
     , _edgeCapacityPercent(0.80)
-    , _expandStep         (0.60)
+    , _expandStep         (0.99)
     , _ripupLimits        ()
     , _ripupCost          (3)
     , _eventsLimit        (4000000)

kite/src/GraphicKiteEngine.cpp

@@ -178,7 +178,7 @@ namespace Kite {
 
   void  GraphicKiteEngine::runDetailed ()
   {
-    static vector<Net*> routingNets;
+    static KatabaticEngine::NetSet routingNets;
 
     KiteEngine* kite = KiteEngine::get ( getCell() );
     if ( not kite ) {
@@ -191,14 +191,6 @@ namespace Kite {
 
     _viewer->clearToolInterrupt ();
 
-    // kite->setSaturateRatio  ( 0.85 );
-    // kite->setExpandStep     ( 0.20 );
-    // kite->setRipupLimit     ( 25, Configuration::BorderRipupLimit );
-    // kite->setRipupLimit     ( 15, Configuration::StrapRipupLimit );
-    // kite->setRipupLimit     (  5, Configuration::LocalRipupLimit );
-    // kite->setRipupLimit     (  5, Configuration::GlobalRipupLimit );
-    // kite->setRipupLimit     (  5, Configuration::LongGlobalRipupLimit );
-    // kite->setRipupCost      (  3 );
     kite->loadGlobalRouting ( Katabatic::LoadGrByNet, routingNets );
     emit cellPostModificated ();
 

kite/src/KiteEngine.cpp

@@ -377,7 +377,7 @@ namespace Kite {
   }
 
   
-  void  KiteEngine::loadGlobalRouting ( unsigned int method, vector<Net*>& nets )
+  void  KiteEngine::loadGlobalRouting ( unsigned int method, KatabaticEngine::NetSet& nets )
   {
     KatabaticEngine::loadGlobalRouting ( method, nets );
 

kite/src/KiteMain.cpp

@@ -173,7 +173,7 @@ int main ( int argc, char *argv[] )
       knik->loadSolution       ();
     }
 
-    static vector<Net*> routingNets;
+    static KatabaticEngine::NetSet routingNets;
     KiteEngine* kite = KiteEngine::create ( cell );
     // kite->setSaturateRatio      ( 0.85 );
     // kite->setExpandStep         ( 0.20 );

kite/src/PreProcess.cpp

@@ -2,7 +2,7 @@
 // -*- C++ -*-
 //
 // This file is part of the Coriolis Software.
-// Copyright (c) UPMC/LIP6 2008-2009, All Rights Reserved
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
 //
 // ===================================================================
 //
@@ -82,7 +82,31 @@ namespace {
   }
 
 
-  void  propagateCagedConstraints ( TrackElement* segment )
+  void  findFailedPerpandiculars ( RoutingPad* rp, unsigned int direction, set<TrackElement*>& faileds )
+  {
+    ltrace(200) << "Find failed caging: " << rp << endl;
+
+    TrackElement* parallel;
+    forEach ( Segment*, isegment, rp->getSlaveComponents().getSubSet<Segment*>() ) {
+      parallel = Session::lookup ( *isegment );
+      ltrace(200) << "* " << parallel << endl;
+
+      if ( parallel->isFixed () ) continue;
+      if ( parallel->getDirection() != direction ) continue;
+
+      AutoContact* contact = parallel->base()->getAutoSource();
+      if ( contact->base()->getAnchor() != rp ) contact = NULL;
+
+      if ( contact == NULL ) contact = parallel->base()->getAutoTarget();
+      if ( contact->base()->getAnchor() != rp ) continue;
+
+    //parallel->makeDogLeg ( contact->getGCell() );
+      faileds.insert ( parallel );
+    }
+  }
+
+
+  void  propagateCagedConstraints ( TrackElement* segment, set<TrackElement*>& faileds )
   {
     if ( not segment->isFixed() ) return;
 
@@ -91,6 +115,7 @@ namespace {
     Track*                 track         = segment->getTrack();
     unsigned int           direction     = Session::getRoutingGauge()->getLayerDirection(segment->getLayer());
     AutoContact*           source        = segment->base()->getAutoSource();
+    RoutingPad*            rp            = NULL;
     Interval               uside         = source->getGCell()->getUSide(direction);
     DbU::Unit              minConstraint = DbU::Min;
     DbU::Unit              maxConstraint = DbU::Max;
@@ -140,7 +165,7 @@ namespace {
 
   // Finding perpandiculars, by way of the source & target RoutingPad.
     if ( source->getAnchor() ) {
-      RoutingPad* rp = dynamic_cast<RoutingPad*>(source->getAnchor());
+      rp = dynamic_cast<RoutingPad*>(source->getAnchor());
       if ( rp ) {
         TrackElement* parallel;
         forEach ( Segment*, isegment, rp->getSlaveComponents().getSubSet<Segment*>() ) {
@@ -163,18 +188,25 @@ namespace {
     ltracein(200);
     if ( perpandiculars.size() == 0 ) {
       ltrace(200) << "No perpandiculars to " << segment << endl;
+      ltraceout(200);
+      return;
     }
 
     Interval constraints ( minConstraint, maxConstraint );
     for ( size_t iperpand=0 ; iperpand<perpandiculars.size() ; iperpand++ ) {
       ltrace(200) << "Caged: " << constraints << " " << perpandiculars[iperpand] << endl;
       perpandiculars[iperpand]->base()->mergeUserConstraints ( constraints );
+      if ( perpandiculars[iperpand]->base()->getUserConstraints().isEmpty() ) {
+        ltrace(200) << "Cumulative caged constraints are too tight on " << perpandiculars[iperpand] << endl;
+        findFailedPerpandiculars ( rp, direction, faileds );
+      }
     }
+
     ltraceout(200);
   }
 
 
-  void  freeCagedTerminals ( Track* track )
+  void  protectCagedTerminals ( Track* track )
   {
     Configuration* configuration = Session::getConfiguration ();
     const Layer*   metal2        = configuration->getRoutingLayer ( 1 );
@@ -194,15 +226,6 @@ namespace {
           RoutingPad*  rp      = dynamic_cast<RoutingPad*>(support->getAnchor());
           GCell*       gcell   = Session::lookup ( support->getGCell() );
 
-#if 0
-          Point        point   ( segment->base()->getSourceU(), track->getAxis() );
-          GCell*       gcell   = Session::lookup ( segment->base()->getAutoSource()->getGCell() );
-          AutoContact* source  = AutoContact::create ( gcell->base(), segment->getNet(), metal3 );
-          AutoContact* target  = AutoContact::create ( gcell->base(), segment->getNet(), metal3 );
-          source->setPosition ( point );
-          target->setPosition ( point );
-#endif
-
           AutoContact* source = AutoContact::fromRp ( gcell->base()
                                                     , rp
                                                     , metal3
@@ -278,7 +301,7 @@ namespace Kite {
 
       Track* track = plane->getTrackByIndex ( 0 );
       while ( track ) {
-        freeCagedTerminals ( track );
+        protectCagedTerminals ( track );
         track = track->getNext ();
       }
     }
@@ -288,15 +311,17 @@ namespace Kite {
 
   void  KiteEngine::_computeCagedConstraints ()
   {
+    set<TrackElement*> faileds;
+
     TrackElementLut::iterator isegment = _trackSegmentLut.begin();
     for ( ; isegment != _trackSegmentLut.end() ; isegment++ ) {
       if ( not isegment->second->isFixed() ) continue;
-      propagateCagedConstraints ( isegment->second );
+      propagateCagedConstraints ( isegment->second, faileds );
     }
   }
 
 
-  void  KiteEngine::_computeCagedConstraints ( Net* net )
+  void  KiteEngine::_computeCagedConstraints ( Net* net, set<TrackElement*>& faileds )
   {
     TrackElement* segment = NULL;
 
@@ -311,7 +336,7 @@ namespace Kite {
       segment = Session::lookup ( *isegment );
       if ( not segment ) continue;
 
-      propagateCagedConstraints ( segment );
+      propagateCagedConstraints ( segment, faileds );
     }
   }
 

kite/src/RoutingEvent.cpp

@@ -3614,7 +3614,7 @@ namespace Kite {
   {
     if ( _valid and not force ) return;
 
-    DebugSession::open ( _segment->getNet(), 200 );
+    DebugSession::open ( _segment->getNet(), 148 );
 
     ltrace(200) << "RoutingEvent::revalidate() - " << (void*)this << ":" << this << endl;
     ltracein(200);

kite/src/Session.cpp

@@ -69,7 +69,9 @@ namespace Kite {
     , _insertEvents()
     , _removeEvents()
     , _sortEvents  ()
-  { }
+  {
+  //_addCanonizeCb ( _computeCagedConstraints );
+  }
 
 
   void  Session::_postCreate ()
@@ -248,8 +250,9 @@ namespace Kite {
 # endif
     }
 
+    set<TrackElement*> faileds;
     for ( set<Net*>::iterator inet=netsModificateds.begin() ; inet != netsModificateds.end() ; inet++ ) {
-      _getKiteEngine()->_computeCagedConstraints ( *inet );
+      _getKiteEngine()->_computeCagedConstraints ( *inet, faileds );
     }
 
 # if defined(CHECK_DATABASE)
@@ -261,6 +264,17 @@ namespace Kite {
 
     _sortEvents.clear ();
 
+    if ( not faileds.empty() ) {
+      set<TrackElement*>::iterator ifailed = faileds.begin();
+      vector<GCell*> gcells;
+      for ( ; ifailed != faileds.end() ; ++ifailed ) {
+        (*ifailed)->getGCells ( gcells );
+        (*ifailed)->makeDogLeg ( gcells[0] );
+      }
+
+      count += _revalidate ();
+    }
+
     return count;
   }
 

kite/src/kite/KiteEngine.h

@@ -120,7 +120,7 @@ namespace Kite {
               void             saveGlobalSolution         ();
               void             annotateGlobalGraph        ();
               void             runGlobalRouter            ( unsigned int mode );
-      virtual void             loadGlobalRouting          ( unsigned int method, vector<Net*>& );
+      virtual void             loadGlobalRouting          ( unsigned int method, KatabaticEngine::NetSet& );
               void             runNegociate               ( unsigned int slowMotion=0 );
               void             setInterrupt               ( bool );
       virtual void             finalizeLayout             ();
@@ -133,7 +133,7 @@ namespace Kite {
               bool             _check                     ( unsigned int& overlap, const char* message=NULL ) const;
               void             _check                     ( Net* ) const;
               void             _computeCagedConstraints   ();
-              void             _computeCagedConstraints   ( Net* );
+              void             _computeCagedConstraints   ( Net*, set<TrackElement*>& );
       virtual Record*          _getRecord                 () const;
       virtual string           _getString                 () const;
       virtual string           _getTypeName               () const;