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* ./knik: 

- Change: In KnikEngine, calculation of saturation is now using the RoutingGauge,
        but still uses a hard-wired CellGauge.
    - Change: Obstacles are now taken into account for saturation.
This commit is contained in:
Jean-Paul Chaput 2010-08-22 12:37:08 +00:00
parent d0f15b901f
commit a0dce4eceb
1 changed files with 29 additions and 4 deletions
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33
knik/src/KnikEngine.cpp
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@ -63,6 +63,9 @@
#include "crlcore/Utilities.h"
#include "crlcore/ToolBox.h"
#include "crlcore/Measures.h"
#include "crlcore/RoutingGauge.h"
#include "crlcore/RoutingLayerGauge.h"
#include "crlcore/AllianceFramework.h"
#include "knik/Configuration.h"
#include "knik/Edge.h"
@ -79,6 +82,10 @@ namespace Knik {
using Hurricane::Warning;
using CRL::addMeasure;
using CRL::RoutingGauge;
using CRL::RoutingLayerGauge;
using CRL::AllianceFramework;
//globale variables
unsigned __congestion__;
@ -1228,15 +1235,33 @@ void KnikEngine::reroute()
void KnikEngine::computeSymbolicWireLength ()
{
// Ugly: hardcoded SxLib gauge characteristics.
const double normalize = (50.0 * 10 * 4) / (50 * 50) ;
Name obstacleNetName ("obstaclenet");
size_t hEdgeCapacity = 0;
size_t vEdgeCapacity = 0;
double gcellSide = 50.0;
RoutingGauge* rg = AllianceFramework::get()->getRoutingGauge();
vector<RoutingLayerGauge*>::const_iterator ilayerGauge = rg->getLayerGauges().begin();
for ( ; ilayerGauge != rg->getLayerGauges().end() ; ++ilayerGauge ) {
RoutingLayerGauge* layerGauge = (*ilayerGauge);
if ( layerGauge->getType() != Constant::Default ) continue;
if ( layerGauge->getDirection() == Constant::Horizontal ) {
hEdgeCapacity += layerGauge->getTrackNumber ( 0, DbU::lambda(50.0) ) - 1;
} else if ( layerGauge->getDirection() == Constant::Vertical ) {
vEdgeCapacity += layerGauge->getTrackNumber ( 0, DbU::lambda(50.0) ) - 1;
}
}
// Complete formula: unitarian Wirelength/Area for one GCell.
// (side*(hEdgeCapacity+vEdgeCapacity)) / (side * side).
const double normalize = ((double)(hEdgeCapacity+vEdgeCapacity)) / gcellSide;
unsigned long long symbolicWireLength = 0;
forEach ( Net*, net, getCell()->getNets() ) {
if ( net->isGlobal()
or net->isSupply()
or net->isClock()
or (net->getName() == obstacleNetName) ) {
or net->isClock() ) {
continue;
}