* Change: In Anabatic:
- In Dijkstra, replace _toWires() by _trackback() which is called
immediatly on reaching a target.
- In Constants & GCell, added flags for typing the GCells. We now
have:
* DeviceGCell, for analogic devices.
* ChannelGCell, for resizable routing channels.
* StrutGCell, for fixed spaces in analog designs.
* MatrixGCell, for square tile in digital designs.
* Bug: In Anabatic:
- In _propagate(), on reaching a target, forgot to remove it from
the queue before pushing it back with the new distance. It also
simplificate the core algorithm as target as treated normal nodes.
* New: In Anabatic:
- Update cdebug to use the fastest macro version.
- More readable drawings of GCells and Edges.
- Added timer support.
- The distance is now computed in DbU::Unit (aka long) and not in
normalized float.
- The distance function is now a callback (std::function<>) that
can be changed (a default is provided at initialization).
- New concept of branch in the agglomerated connex component.
Each trace back part create a "branch" (tagged with a "branchId").
When a node is reached with the same distance, but from two
different branches, choose the the branch that was lastly created.
This create a slightly different tree which grows outward from
the newest branches.
- Makes the horizontal edges *slightly* longer than the vertical ones
to skew the tree to use vertical edges, as it is usually less
congested than the horiontal one (due to metal1 cell terminals).
It is also my understanding that it is useful to reduce the
number of vias, whithout introducing a via cost.
* New: In Bootstrap:
- Script sprof.py to perform sprof & demangle libraries execution
profile.
* ToDo: In Anabatic:
- Corner optimization. Sometimes when two corners are possible, the
wrong one is choosen. That is, one of it's edge cannot be used for
further grow of the tree.
* Bug: In Anabatic:
- Activate the searchArea to limit the area explored by the Dijkstra.
Uses the bounding boxes of the vertexes/gcells instead of the ones
the RoutingPads.
- Always detach contacts from the rings in load(), even if the vertex
is already marked as target.
- On reaching a target (non-negative connexId), do not forget to update
the distance to source.
- In Edges locator, added support for side selection (needed by the
monotonic feature).
* New: In Anabatic:
- Hide the atomic Dijkstra methods (made private).
- Implementation of the monotonic mode in Dijkstra (for bipoints only).
- Added a separate function for distance computation between two vertexes,
now take account of the VIAs costs.
* Bug: In Anabatic:
- In Dijktra::load(), do not create Contact while looping over the Net's
components (for RoutingPads).
- In Dijkstra::propagate(), reset the connexId of reached Vertexes
on updating the stamp to avoid using connexId from previous runs.
Push the vertexes on the queue while backtracking (with a distance
of 0.0). Do not reset the "_from" as we need it in Dijkstra::toWires()
to know how were the routing is.
- In Edge::getDistance(), convert to float more early so the normalisation
do not always end up in zero.
- In GCell::_add(), when the axis of the new edge is equal to one already
on the given side, adds it *after* the existing edge and not before.
(to be coherent with the way GCells are split in two)
- In GCell::hcut() and GCell::vcut(), create an Edge if is equal to X/Y Max,
*but* the new chunk is flat. The new chunk is then expected to expand
"below".
- In GraphicsAnabaticEngine::drawGCell(), display the id of the GCell in
a small box at the center of it's bounding box. Nothing displayed for
flat GCells, to avoid cluttering.
* Bug: In Anabatic:
- In Dijkstra/Vertex, use the new Observer for fast access from the GCells.
- In Dijktra::propagate() loop detection.
- In Dijkstra, reset the "_from" of vertexes between two propagates on
the same Net (otherwise: loops...).
- In Matrix, there must be two different way of calculating an index from
a position. One for the min, which is rounded to superior. And one for
the max which is rounded to inferior.
- In Matrix::updateArea(), checks for invalid indexes.
* Bug: In Anabatic:
- In Edge, materialize was done before the Edge get it's final position.
Must be invalidated afterwards for the UpdateSession to put him in
the correct QuadTree.
- Functional (debugged) Dijkstra skeleton.
* Change: In Hurricane, in CellWidget, enable the drawing of ExtensionGos
according to the the threshold paramaters (as layers do).
* Change: In CRL Core, provide DrawingStyle for Anabatic::GCell &
Anabatic::Edge. Use the exact name of the ExtensionGo.
In kite.conf, add settings for the size of an edge as the optimal
size may change between analog & digital designs.
* New: In Anabatic:
- Support for fast position query using a matrix.
- Computation of the Edge capacity, based on the routing gauge parameters.
- Graphic display of the edges capacity. Added configuration
parameters to size the bounding box of an Edge.
* Bug: In Anabatic:
- GCell::_moveEdges was both too complex (some cases never arise the
way we divide GCells) and bugged.
EricLaoGitHub
Jean-Paul Chaput