- New: In RoutingEvent, while routing a full chip, transient full blockages
may happens due to the initial position of some perpandiculars on theirs
optimal positions. Check for it and perform a "ripupPerpandicular" with
the perpandiculars re-routed first (on normal operation, this is the
reverse).
- Change: In NegociateWindow::NegociateOverlapCost(), do not account terminals
if the layer is *above* METAL3 as it is unlikely that it's truly directly
connected to a terminal (true at least for our designs).
- Change: In RoutingEvent::State, add a "fullBlocked" flag to perform the
full blockage direction while building the state object.
- Change: In RoutingEvent::cacheAxisHint(), when the TrackSegment has parent,
uses the parent current axis position and not it's axis hint.
- Change: In Manipulator::insertInTrack(), when the overlapped segment is a
Local and is completly enclosed (shrinkLeft & shrinkRight), no longer
rip it up but force a shrink left/right instead.
- Bug: In RoutingEvent, the event sorting function was sorting in the *wrong*
order! The less prioritary first! With the correct sort, we won an
additionnal 30% in speed (total: 69%). From the "reference" time we have
a 3.2 speed-up. And we can successfully process denser designs...
- New: In BuildPowerRails, special processing for the power ring segments.
The "diagonal" of vias at each corner is causing a misbehavior of the
routing algorithm (due to fully saturated GCells in one direction).
As a temporary fix, extend the segments so they form a "square corner".
(problem arise on "d_in_i(22)").
- New: In RoutingEvent::_processNegociate, disable the "isForcedToHint()"
feature. No noticeable loss of quality or speed.
- New: In TrackElement/TrackSegment, wraps the AutoSegment parent's mechanism.
Allows to gets the DataNegociate of either the segment or it's parent.
- New: State::solveFullBlockages(), dedicated method to solves the case when
all the allowed tracks of a segment are blocked, tries to moves up
local segments and to break-up global ones.
- New: RoutingEventLoop, a more sophisticated way to detect looping.
Maintain a dynamic histogram of the last N (default 10) segments routeds,
with the count of how many times they have occurred. If that count
exeed 40, we *may* be facing a loop.
- Change: In State::conflictSolve1, implement new policy. The global segments
no more can be broken by local ones. The idea behind is that breaking
a global on the request of a local will only produce more cluttering
in the GCell. Globals must be keep straigth pass through, especially
inside near-saturated GCells. Globals breaking however can occurs at
another global's request.
- Change: In TrackCost, implement the new policy about locals segments that
cannot break globals segments. The sorting class now accept flags to
modulate the sorting function. Two options avalaibles: IgnoreAxisWeigth
(to uses for strap segments) and DiscardGlobals (to uses with locals).
- Change: In TrackCost, the "distance to fixed" have now an upper bound of
50 lambdas (no need to be greater because it means it's outside the
begin & en GCells). Take account not only of fixed segment, but also
of placed segments which makes bound.
- Bug: In Track::_check(), while calling each individual TrackSegment check,
uses it as the *first* argument of the "or", otherwise it may not be
called.
- Bug: In ProtectRoutingPad, loop over segment Collections while modificating
it was producing non-deterministic results. The fact that a collection
must be not modificated while beeing iterated is becoming a more and more
painful problem.
./coriolis/src/crlcore,
./coriolis/src/knik,
./coriolis/src/katabatic,
./coriolis/src/kite,
./coriolis/src/equinox,
./coriolis/src/solstice,
./coriolis/src/ispd:
- SVN MOVE: Source tree simplification & uniformisation. Now all tools
are at the same level, directly under the root of the repository.
No more "coriolis/src".
Jean-Paul Chaput