Etesian adjustements, patch contributed by G. Gouvine.
This commit is contained in:
Jean-Paul Chaput
parent
1e73466199
commit
1aa416e82a
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@ -157,27 +157,17 @@ namespace {
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{
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DbU::Unit tx = position.x_ * pitch;
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DbU::Unit ty = position.y_ * pitch;
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//Point center = model->getAbutmentBox().getCenter();
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Box cellBox = model->getAbutmentBox();
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Transformation::Orientation orient = Transformation::Orientation::ID;
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// TODO offsets
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if ( orientation.x_ and orientation.y_ ) {
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//tx += - center.getX();
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//ty += - center.getY();
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} else if ( not orientation.x_ and orientation.y_) {
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//tx += center.getX();
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if ( not orientation.x_ and orientation.y_) {
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tx += cellBox.getWidth();
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//ty += - center.getY();
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orient = Transformation::Orientation::MX;
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} else if ( orientation.x_ and not orientation.y_) {
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//tx += - center.getX();
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//ty += center.getY();
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ty += cellBox.getHeight();
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orient = Transformation::Orientation::MY;
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} else if ( not orientation.x_ and not orientation.y_) {
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//tx += center.getX();
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//ty += center.getY();
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tx += cellBox.getWidth();
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ty += cellBox.getHeight();
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orient = Transformation::Orientation::R2;
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@ -287,7 +277,7 @@ namespace Etesian {
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{
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// Ugly: Name based detection of ISPD benchmarks.
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if (getString(getCell()->getName()).substr(0,7) == "bigblue") {
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cmess1 << " o ISPD benchmark <" << getCell()->getName()
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cmess2 << " o ISPD benchmark <" << getCell()->getName()
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<< ">, no feed cells will be added." << endl;
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} else {
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// Ugly: Direct uses of Alliance Framework.
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@ -455,7 +445,7 @@ namespace Etesian {
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if (_cellWidget) _cellWidget->refresh();
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_placed = true;
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_placed = false;
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}
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@ -571,7 +561,7 @@ namespace Etesian {
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dots.dot();
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nets[netId] = temporary_net( netId, 1000 );
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nets[netId] = temporary_net( netId, 1 );
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forEach ( RoutingPad*, irp, (*inet)->getRoutingPads() ) {
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string insName = extractInstanceName( *irp );
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@ -624,7 +614,8 @@ namespace Etesian {
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Density densityConf = getSpreadingConf();
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cmess1 << " o Running Coloquinte." << endl;
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cmess1 << " - Computing initial placement..." << endl;
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cmess1 << " o Global placement." << endl;
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cmess2 << " - Computing initial placement..." << endl;
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cmess2 << setfill('0') << right;
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@ -636,7 +627,7 @@ namespace Etesian {
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cmess2 << " o Initial wirelength " << get_HPWL_wirelength(_circuit, _placementLB) << "." << endl;
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startMeasures();
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cmess1 << " o Simple legalization." << endl;
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cmess2 << " o Simple legalization." << endl;
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auto first_legalizer = region_distribution::uniform_density_distribution(_surface, _circuit, _placementLB);
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first_legalizer.selfcheck();
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get_rough_legalization( _circuit, _placementUB, first_legalizer);
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@ -655,7 +646,7 @@ namespace Etesian {
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_updatePlacement( _placementUB );
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// Early topology-independent solution + negligible pulling forces to avoid dumb solutions
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cmess1 << " o Star (*) Optimization." << endl;
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cmess2 << " o Star (*) Optimization." << endl;
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auto solv = get_star_linear_system( _circuit, _placementLB, 1.0, 0, 10000)
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+ get_pulling_forces( _circuit, _placementUB, 1000000.0);
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solve_linear_system( _circuit, _placementLB, solv, 200 );
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@ -664,7 +655,7 @@ namespace Etesian {
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if(placementUpdate <= LowerBound)
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_updatePlacement( _placementLB );
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cmess1 << " o Simple legalization." << endl;
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cmess2 << " o Simple legalization." << endl;
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auto snd_legalizer = region_distribution::uniform_density_distribution(_surface, _circuit, _placementLB);
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get_rough_legalization( _circuit, _placementUB, snd_legalizer);
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@ -686,18 +677,18 @@ namespace Etesian {
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targetImprovement = 0.05f; // 5/100 per iteration
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}
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else if(placementEffort == Standard){
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minPenaltyIncrease = 0.003f;
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minPenaltyIncrease = 0.001f;
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maxPenaltyIncrease = 0.04f;
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targetImprovement = 0.02f; // 2/100 per iteration
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}
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else if(placementEffort == High){
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minPenaltyIncrease = 0.001f;
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minPenaltyIncrease = 0.0005f;
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maxPenaltyIncrease = 0.02f;
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targetImprovement = 0.01f; // 1/100 per iteration
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}
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else{
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minPenaltyIncrease = 0.0002f;
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maxPenaltyIncrease = 0.015f;
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maxPenaltyIncrease = 0.01f;
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targetImprovement = 0.005f; // 5/1000 per iteration
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}
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@ -713,7 +704,7 @@ namespace Etesian {
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// Get the system to optimize (tolerance, maximum and minimum pin counts)
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// and the pulling forces (threshold distance)
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auto solv = get_HPWLF_linear_system ( _circuit, _placementLB, 0.5 * sliceHeight, 2, 100000 )
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+ get_linear_pulling_forces( _circuit, _placementUB, _placementLB, pullingForce, 2.0f * linearDisruption);
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+ get_linear_pulling_forces( _circuit, _placementUB, _placementLB, pullingForce, 2.0f * linearDisruption);
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solve_linear_system( _circuit, _placementLB, solv, 400 ); // number of iterations
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_progressReport2( startTime, " Linear." );
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@ -757,10 +748,11 @@ namespace Etesian {
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) );
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currentDisruption = newDisruption;
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linearDisruption = get_mean_linear_disruption(_circuit, _placementLB, _placementUB);
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cparanoid << " Pulling force: " << pullingForce << " Increase: " << penaltyIncrease << endl;
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pullingForce += penaltyIncrease;
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++i;
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}while(linearDisruption >= 0.5 * sliceHeight and currentDisruption <= 0.95);
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}while(linearDisruption >= 0.5 * sliceHeight and currentDisruption <= 0.9);
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cmess1 << " o Detailed Placement." << endl;
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index_t detailedIterations;
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@ -796,12 +788,14 @@ namespace Etesian {
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_updatePlacement( _placementUB );
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OSRP_convex_HPWL( _circuit, legalizer );
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//OSRP_noncvx_RSMT( _circuit, legalizer );
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coloquinte::dp::get_result( _circuit, legalizer, _placementUB );
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_progressReport1( startTime, " Row Optimization" );
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if(placementUpdate == UpdateAll)
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_updatePlacement( _placementUB );
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swaps_row_convex_HPWL( _circuit, legalizer, 4 );
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//swaps_row_noncvx_RSMT( _circuit, legalizer, 4 );
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coloquinte::dp::get_result( _circuit, legalizer, _placementUB );
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_progressReport1( startTime, " Local Swaps ...." );
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if(placementUpdate <= LowerBound)
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@ -817,7 +811,7 @@ namespace Etesian {
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}
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_updatePlacement( _placementUB );
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cmess1 << " o Adding feed cells." << endl;
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cmess2 << " o Adding feed cells." << endl;
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addFeeds();
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cmess1 << " o Placement finished." << endl;
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@ -828,7 +822,7 @@ namespace Etesian {
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cmess1 << ::Dots::asString
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( " - RMST", DbU::getValueString( (DbU::Unit)get_RSMT_wirelength(_circuit,_placementUB )*getPitch() ) ) << endl;
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_placed = false;
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_placed = true;
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#else
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cerr << Warning("Coloquinte library wasn't found, Etesian is disabled.") << endl;
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#endif
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@ -851,7 +845,8 @@ namespace Etesian {
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cmess2 << label << elapsed.str()
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<< " HPWL:" << coloquinte::gp::get_HPWL_wirelength( _circuit, _placementUB )
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<< " RMST:" << coloquinte::gp::get_RSMT_wirelength( _circuit, _placementUB )
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<< "\n" << indent
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<< endl;
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cparanoid << indent
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<< " Linear Disrupt.:" << coloquinte::gp::get_mean_linear_disruption ( _circuit, _placementLB, _placementUB )
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<< " Quad Disrupt.:" << coloquinte::gp::get_mean_quadratic_disruption( _circuit, _placementLB, _placementUB )
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<< endl;
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