fixed clustering

CodeElements/Clustering/src/clustering.py

@@ -3,7 +3,11 @@ import time
 import shutil
 import sys
 sys.path.append('./utils')
+sys.path.append('../../FormatTranslators/src')
 
+from FormatTranslators import Port
+from FormatTranslators import Macro
+from FormatTranslators import MacroPin
 
 class Clustering:
     def __init__(self, design, src_dir, fixed_file, step_threshold = 100.6, distance = 1000.0,
@@ -37,6 +41,11 @@ class Clustering:
         self.placement_density = placement_density
         self.GUI = GUI
 
+        ### Print Information
+        print("[INFO] step_threshold : ", self.step_threshold)
+        print("[INFO] distance : ", self.distance)
+        print("[INFO] max_num_vertices : ", self.max_num_vertices)
+
         # Specify the location of hmetis exe and openroad exe and other utilities
         self.hmetis_exe = src_dir + "/utils/hmetis"
         self.openroad_exe = src_dir + "/utils/openroad"
@@ -92,7 +101,13 @@ class Clustering:
         self.ConvertFixFile() # Convert fixed file
         self.hMetisPartitioner()  # Partition the hypergraph
         self.BreakClusters()  # Break clusters spreading apart
+        print("[INFO] After finishing BreakClusters(), ", end = "")
+        print("num_clusters = ", len(self.vertices_in_cluster))
+
         self.MergeSmallClusters()  # Merge small clusters with its neighbors
+        print("[INFO] After finishing MergeSmallClusters(), ", end = "")
+        print("num_clusters = ", len(self.vertices_in_cluster))
+
         self.CreateInvsCluster()  # Generate Innovus Clustering Commands
         self.CreateDef()  # Generate clustered lef and def file
         if (self.RePlace == True):
@@ -246,8 +261,8 @@ class Clustering:
                 box = self.vertex_pos[vertex]
                 cluster_lx = min(cluster_lx, box[0])
                 cluster_ly = min(cluster_ly, box[1])
-                cluster_ux = min(cluster_ux, box[2])
-                cluster_uy = min(cluster_uy, box[3])
+                cluster_ux = max(cluster_ux, box[2])
+                cluster_uy = max(cluster_uy, box[3])
 
         return cluster_lx, cluster_ly, cluster_ux, cluster_uy
 
@@ -264,8 +279,6 @@ class Clustering:
             and ((cluster_uy - cluster_ly) <= self.step_threshold)):
                 return None
 
-        Print("Break This Cluster")
-
         cluster_x = (cluster_lx + cluster_ux) / 2.0
         cluster_y = (cluster_ly + cluster_uy) / 2.0
         num_x_grid = int((cluster_ux - cluster_x) / self.step_threshold)

CodeElements/Clustering/test/run_replace.tcl

+set design "ariane"
+set top_design "ariane"
+set netlist "./design/ariane.v"
+# def file generated by iSpatial flow
+# where all the instances have been placed
+set def_file "./design/ariane.def"
+
+
+set ALL_LEFS "
+    ./lefs/NangateOpenCellLibrary.tech.lef 
+    ./lefs/NangateOpenCellLibrary.macro.mod.lef 
+    ./lefs/fakeram45_256x16.lef
+    "
+
+set LIB_BC "
+    ./libs/NangateOpenCellLibrary_typical.lib 
+    ./libs/fakeram45_256x16.lib
+    "
+
+set site "FreePDK45_38x28_10R_NP_162NW_34O"
+
+foreach lef_file ${ALL_LEFS} {
+	read_lef $lef_file
+}
+
+foreach lib_file ${LIB_BC} {
+	read_liberty $lib_file
+}
+
+read_lef ./results/OpenROAD/clusters.lef
+read_def ./results/OpenROAD/clustered_netlist.def
+set global_place_density 0.7
+set global_place_density_penalty 8e-5
+global_placement -disable_routability_driven  -density $global_place_density -init_density_penalty $global_place_density_penalty
+write_def ./results/OpenROAD/blob.def
+exit

CodeElements/Clustering/test/test_clustering.py

@@ -10,9 +10,9 @@ if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument("--design", help="design_name: ariane, MegaBoom_x2 ", type = str, default = "ariane")
     parser.add_argument("--fixed_file", help="fixed file generated by grouping", type = str, default = "./fix_files_grouping/ariane.fix.old")
-    parser.add_argument("--step_threshold", help = "threshold (x and y) to break clusters (in um)", type = float, default = 100.6)
-    parser.add_argument("--distance", help="distance for merge clusters", type = float, default = 1000.0)
-    parser.add_argument("--max_num_vertices", help="threshold for samller clusters", type = int, default = 1000000)
+    parser.add_argument("--step_threshold", help = "threshold (x and y) to break clusters (in um)", type = float, default = 400.0)
+    parser.add_argument("--distance", help="distance for merge clusters", type = float, default = 200.0)
+    parser.add_argument("--max_num_vertices", help="threshold for samller clusters", type = int, default = 44)
     parser.add_argument("--net_size_threshold",  help = "large net threshold", type = int, default = 300)
     parser.add_argument("--Nparts",  help = "number of clusters (only for hmetis, default  = 500)", type = int, default = 500)
     parser.add_argument("--setup_file", help = "setup file for openroad (default = setup.tcl)", type = str, default = "setup.tcl")

CodeElements/CodeFlowIntegration/flow.py

@@ -69,7 +69,7 @@ Nparts = 500
 
 # Based on the description of circuit training, [see line 180 at grouper.py]
 # we set the following thresholds
-step_threshold = sqrt(chip_width * chip_height) / 100.0
+step_threshold = sqrt(chip_width * chip_height) / 4.0
 distance = step_threshold / 2.0
 max_num_vertices = num_std_cells / Nparts / 4
 Replace = False

CodeElements/FormatTranslators/src/FormatTranslators.py

@@ -572,7 +572,7 @@ class BookShelf2ProBufFormat:
                 line_id += 1
 
 
-    # Generate PLC file
+    # Generate.pb.txt file
     def Output(self):
         f = open(self.output_file, "w")
         for inst_name, inst in self.insts.items():
@@ -767,7 +767,7 @@ class ODB2ProBufFormat:
                     self.insts[driver_name].AddSinks(sinks_name)
 
 
-    # Generate PLC file
+    # Generate.pb.txt file
     def Output(self):
         f = open(self.output_file, "w")
         for inst_name, inst in self.insts.items():
@@ -785,7 +785,7 @@ class LefDef2ProBufFormat:
         self.lef_list = lef_list
         self.def_file = def_file
         self.design = design
-        self.output_file = self.design + ".plc"
+        self.output_file = self.design + ".pb.txt"
         self.openroad_exe = openroad_exe
         self.net_size_threshold = net_size_threshold
         self.file_dir = os.getcwd() + "/rtl_mp"