* Bug: In Hurricane, in StaticObservable::getObserver(), if the slot
pointer is NULL, do not try to access the owner. Returns NULL, so
the caller can be aware of the situation...
* Change: In Hurricane, in BreakpointWidget & ExceptionWidget some
cosmetic changes (fonts and window sizes).
* Bug: In Anabatic, In AutoHorizontal::getConstraints(), take into account
the constraints from the source AutoContact, as it holds the constraints
transmitted by the RoutingPads and sets up by propageConstraintsFromRp().
It is likely to be a bug affecting the original Katabatic as well.
* Change: In Anabatic, in RawGCellsUnder(), check that the segment is not
completly oustside the cell abutment box and truncate the coordinates
to the part that is inside. Use the "shrink" if we reach the east/north
border.
* Change: In Anabatic, in Configuration, no more decorator because we will
use a true derived relationship. Katana *derives* from *Anabatic* and do
not *decorate* it, so the Configuration can do the same. It also implies
that we directly create a Katana engine, not an Anabatic one.
* Change: In Anabatic, in Session, do not allow the opening of the Session
in a standalone fashion (with a static method). Instead it must be opened
using the relevant method of the Anabatic/Katana engine. This ensure we
are opening the right Session type.
* Change: In Anabatic, in AutoSegment_Aligneds() collection the seed segment
is not part of the collection by default, but will be included if the
Flags::WithSelf is set.
* Change: In Configuration, all the flags value are now defined in two steps.
Declared in the header and initialized in the module. This is to prevent
the fact that on some cases, in relation with the Python "extern C" part
modules, we need a true allocated variable. It was causing weird linking
problems.
A side effect is that they can no longer be used as entry is switches,
have to replace them by if/else.
* New: In Anabatic, new GCell::getNeighborAt() utility function.
* Bug: In Anabatic, in GCell::doGrid(), tag all the GCells of the grid with
the grid type... Back annote all the edges capacity (north & east) with
the reserved local capacity.
* New: Complete portage of Kite over Anabatic. The new engine is christened
"Katana" for Kite-Analogic. When it's capabilities and performances
will be on a part with Kite, it is to completly replace it (and take
back the "Kite" name). Preliminary tests seems to show that, contrary
to intuition (because built on a more complex/slower grid), it is even
slightly faster than Kite 8-).
* New: In Anabatic:
- In AnabaticEngine, keep track of overflowed edges.
- In AnabaticEngine, getNetsFromedge() to lookup all nets going
through an Edge.
- In Configuration, read the Kite "reserved local" parameter to
decrease the Edge capacity (it's a guessing of the cost of the
local routing).
- In Edge, add an attribute to know if there is an associated
segment of the current net (set by Dijkstra::_traceback()).
Transparently manage the overflowed edges.
- In GCell_Edges, correct a filtering bug when not all sides are
selecteds.
- New GCell::getEdgeTo() to find the edge between two adjacent
GCells.
- New GCell::unrefContact() to automatically removes global contacts
no longer used by any global segments (used during the ripup
step).
- In Dijkstra::load(), now able to "reload" and already partially
or completly routed net (look for Contact of "gcontact" layer
and their attached segments).
- In Dijkstra, keep the last net loaded until the next one is.
Put the cleanup operations in an isolated function "_cleanup()".
- In Dijkstra::_selectFirstsource() and run(), load first source
component made of multiple vertexes.
- In Dijkstra::_trackback(), link the Net segments to the Edges.
- New Dijkstra::ripup(), Dijkstra::_propagateRipup() to perform
the ripup of one edge of a Net (must be loaded in Dijkstra first).
Dijkstra::_tagConnecteds() setup the connexId of a set of Vertexes
- that are connecteds through edges *with* segments.
- In GraphicAnabaticengine & GlobalRoute.cpp, embryo of a global
routing tool with ripup & reroute.
* 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.
* 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.
Jean-Paul Chaput