jcarr
/
coriolis
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Too narrow search area for straight net in Knik. 

* Bug: In Knik, in Graph::Dijsktra(), when all the RoutingPads of a net
    are aligned, the seaching area is only one vertex wide (in width or
    height). That is, it contains only one edge in it's main direction.
    So when that sub-graph contains a fully blocked edge, Dijkstra cannot
    find a path... Now enlarge the one edge graph to at least three by
    inflating the search area. Curiously a code for similar purpose seems
    to be present, but commented.
This commit is contained in:
Jean-Paul Chaput 2015-07-25 11:38:00 +02:00
parent ff69a2ef74
commit ed2cd18c48
2 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
knik/src/Graph.cpp
View File

@ -1023,6 +1023,7 @@ int Graph::initRouting ( Net* net )
}
}
}
//cerr << " traitement pour les contacts : OK" << endl;
//OoOoooOoooOoO A QUOI SERT CE BOOLEEN OoOoooOoooOoO ==>> pour le //5 le connexID ne doit pas avoir été augmenté ! ou alors connexID-1 !!
//bool useConnexID = false;
@ -1063,6 +1064,13 @@ int Graph::initRouting ( Net* net )
}
}
}
if (_searchingArea.getHeight() <= _matrixVertex->getTileHeight())
_searchingArea.inflate( 0, _matrixVertex->getTileHeight() );
if (_searchingArea.getWidth() <= _matrixVertex->getTileWidth())
_searchingArea.inflate( _matrixVertex->getTileWidth(), 0 );
// for ripup & reroute purpose
if ( __ripupMode__ )
_searchingArea = _cell->getAbutmentBox(); // recherche sur toute la surface : trop long pour gros circuits
@ -1135,6 +1143,9 @@ void Graph::Dijkstra()
ltrace(600) << "Dijkstra for net: " << _working_net << endl;
ltracein(600);
ltrace(600) << "Stamp:" << _netStamp << endl;
ltrace(600) << "Search area : " << _searchingArea
<< " h:" << DbU::getValueString(_searchingArea.getHeight()) << endl;
ltrace(600) << "Matrix tile height : " << DbU::getValueString(_matrixVertex->getTileHeight()) << endl;
ltrace(600) << "Central vertex : " << centralVertex << endl;
ltrace(600) << "_vertexes_to_route.size(): " << _vertexes_to_route.size() << endl;
ltracein(600);

2
knik/src/knik/MatrixVertex.h
View File

@ -70,6 +70,8 @@ namespace Knik {
// Accessors
// *********
public:
DbU::Unit getTileWidth () const { return _tileWidth; }
DbU::Unit getTileHeight () const { return _tileHeight; }
size_t getXSize () const { return _matrix[0].size(); };
size_t getYSize () const { return _matrix.size(); };
unsigned int getLineIndex ( DbU::Unit y );