dpl: Abacus: Make -abacus option to the detailed_placement command

Signed-off-by: minjae <[email protected]>

Author: ApeachM

src/dpl/include/dpl/Opendp.h

@@ -341,8 +341,9 @@ class Opendp
   // max_displacment is in sites. use zero for defaults.
   void detailedPlacement(int max_displacement_x,
                          int max_displacement_y,
-                         const std::string& report_file_name = std::string(""),
-                         bool disallow_one_site_gaps = false);
+                         const std::string& report_file_name,
+                         bool disallow_one_site_gaps,
+                         bool abacus=false);
   void reportLegalizationStats() const;
 
   void setPaddingGlobal(int left, int right);
@@ -371,7 +372,7 @@ class Opendp
   void fillerPlacement(dbMasterSeq* filler_masters, const char* prefix);
   void removeFillers();
   void optimizeMirroring();
-  void runAbacus() { abacusLegalizer_.runAbacus(db_->getChip()->getBlock()); }
+  void runAbacus();
 
  private:
   friend class OpendpTest_IsPlaced_Test;

src/dpl/src/AbacusLegalizer.cpp

@@ -46,6 +46,11 @@
 
 namespace dpl {
 
+void Opendp::runAbacus()
+{
+  abacusLegalizer_.runAbacus(db_->getChip()->getBlock());
+}
+
 // clang-format off
 /**
  * @brief Algorithm 1: Modified Abacus Legalization Approach

src/dpl/src/Opendp.cpp

@@ -139,7 +139,8 @@ void Opendp::setDebug(std::unique_ptr<DplObserver>& observer)
 void Opendp::detailedPlacement(int max_displacement_x,
                                int max_displacement_y,
                                const std::string& report_file_name,
-                               bool disallow_one_site_gaps)
+                               bool disallow_one_site_gaps,
+                               bool abacus)
 {
   importDb();
 
@@ -168,24 +169,28 @@ void Opendp::detailedPlacement(int max_displacement_x,
   }
   odb::WireLengthEvaluator eval(block_);
   hpwl_before_ = eval.hpwl();
-  detailedPlacement();
-  // Save displacement stats before updating instance DB locations.
-  findDisplacementStats();
-  updateDbInstLocations();
-  if (!placement_failures_.empty()) {
-    logger_->info(DPL,
-                  34,
-                  "Detailed placement failed on the following {} instances:",
-                  placement_failures_.size());
-    for (auto cell : placement_failures_) {
-      logger_->info(DPL, 35, " {}", cell->name());
-    }
+  if (!abacus) {
+    detailedPlacement();
+    // Save displacement stats before updating instance DB locations.
+    findDisplacementStats();
+    updateDbInstLocations();
+    if (!placement_failures_.empty()) {
+      logger_->info(DPL,
+                    34,
+                    "Detailed placement failed on the following {} instances:",
+                    placement_failures_.size());
+      for (auto cell : placement_failures_) {
+        logger_->info(DPL, 35, " {}", cell->name());
+      }
 
-    if (!report_file_name.empty()) {
-      writeJsonReport(
-          report_file_name, {}, {}, {}, {}, {}, {}, placement_failures_);
+      if (!report_file_name.empty()) {
+        writeJsonReport(
+            report_file_name, {}, {}, {}, {}, {}, {}, placement_failures_);
+      }
+      logger_->error(DPL, 36, "Detailed placement failed.");
     }
-    logger_->error(DPL, 36, "Detailed placement failed.");
+  } else {
+    runAbacus();
   }
 }
 

src/dpl/src/Opendp.i

@@ -98,9 +98,10 @@ void
 detailed_placement_cmd(int max_displacment_x,
                        int max_displacment_y,
                        bool disallow_one_site_gaps,
-                       const char* report_file_name){
+                       const char* report_file_name,
+                       bool abacusRun=false){
   dpl::Opendp *opendp = ord::OpenRoad::openRoad()->getOpendp();
-  opendp->detailedPlacement(max_displacment_x, max_displacment_y, std::string(report_file_name), disallow_one_site_gaps);
+  opendp->detailedPlacement(max_displacment_x, max_displacment_y, std::string(report_file_name), disallow_one_site_gaps, abacusRun);
 }
 
 void

src/dpl/src/Opendp.tcl

@@ -32,12 +32,18 @@
 ## POSSIBILITY OF SUCH DAMAGE.
 #############################################################################
 
-sta::define_cmd_args "detailed_placement" {[-max_displacement disp|{disp_x disp_y}] [-disallow_one_site_gaps] [-report_file_name file_name]}
+sta::define_cmd_args "detailed_placement" {
+    [-max_displacement disp|{disp_x disp_y}]
+    [-disallow_one_site_gaps]
+    [-report_file_name file_name]
+    [-abacus]
+}
 
 proc detailed_placement { args } {
   sta::parse_key_args "detailed_placement" args \
-    keys {-max_displacement -report_file_name} flags {-disallow_one_site_gaps}
+    keys {-max_displacement -report_file_name} flags {-disallow_one_site_gaps -abacus}
 
+set abacus [info exists flags(-abacus)]
 set disallow_one_site_gaps [info exists flags(-disallow_one_site_gaps)]
   if { [info exists keys(-max_displacement)] } {
     set max_displacement $keys(-max_displacement)
@@ -71,7 +77,7 @@ set disallow_one_site_gaps [info exists flags(-disallow_one_site_gaps)]
     set max_displacement_y [expr [ord::microns_to_dbu $max_displacement_y] \
                               / [$site getHeight]]
     dpl::detailed_placement_cmd $max_displacement_x $max_displacement_y \
-                                $disallow_one_site_gaps $file_name 
+                                $disallow_one_site_gaps $file_name $abacus
     dpl::report_legalization_stats
   } else {
     utl::error "DPL" 27 "no rows defined in design. Use initialize_floorplan to add rows."