fix the width of soft macro

CodeElements/Clustering/src/clustering.py

@@ -12,7 +12,7 @@ from FormatTranslators import MacroPin
 
 class Clustering:
     def __init__(self, design, src_dir, fixed_file, step_threshold = 100.6, distance = 1000.0,
-                 max_num_vertices = 1000000, net_size_threshold = 300,
+                 grid_width = 30.0, max_num_vertices = 1000000, net_size_threshold = 300,
                  Nparts = 500, setup_file = "setup.tcl", RePlace = True, placement_density = 0.7, GUI = True):
         """
         parameter: design,  help="design_name: ariane, MegaBoom_x2 ", type = str
@@ -20,6 +20,7 @@ class Clustering:
         parameter: fixed_file, help="fixed file generated by grouping", type = str
         parameter: step_threshold, help = "threshold (x and y) to break clusters (in um)", type = float
         parameter: distance, help="distance for merge clusters", type = float
+        parameter: grid_width,  help = "grid width generated by gridding script"
         parameter: max_num_vertices, help="threshold for smaller clusters", type = int
         parameter: net_size_threshold, help="large net threshold", type = int
         parameter: Nparts,  help = "number of clusters (only for hmetis, default  = 500)", type = int
@@ -566,7 +567,7 @@ class Clustering:
 class ProBufFormat:
     def __init__(self, io_file, macro_pin_file, inst_file, outline_file,
                  net_file, soft_macros, pbf_file, net_size_threshold,
-                 aspect_ratio):
+                 grid_width):
         self.io_file = io_file
         self.macro_pin_file = macro_pin_file
         self.inst_file = inst_file
@@ -575,7 +576,7 @@ class ProBufFormat:
         self.soft_macros = soft_macros
         self.pbf_file = pbf_file
         self.net_size_threshold = net_size_threshold
-        self.aspect_ratio = aspect_ratio
+        self.grid_width = grid_width
         self.insts = {  }  # map name to Port, Macro, Soft Macro
         self.macro_pin_map = {  } # map macro_pin to macro
         self.macro_pin_offset = {  } # map macro_pin_name to offset
@@ -681,8 +682,8 @@ class ProBufFormat:
                 self.std_cell_map[std_cell] = macro_name
             x = (lx + ux) / 2.0
             y = (ly + uy) / 2.0
-            height = sqrt(area * self.aspect_ratio)
-            width = area / height
+            width = self.grid_width
+            height = area / width
             self.insts[macro_name] = Macro(macro_name, width, height, x, y)
             self.insts[macro_name].IsSoft()
             soft_macro_id += 1

CodeElements/Clustering/test/rtl_mp/ariane.hgr.outline

-0  0  1599.99  1598.8

CodeElements/Clustering/test/test_clustering.py

@@ -12,6 +12,7 @@ if __name__ == '__main__':
     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 = 400.0)
     parser.add_argument("--distance", help="distance for merge clusters", type = float, default = 200.0)
+    parser.add_argument("--grid_width", help="grid width, the width of soft macro", type = int, default = 30.0)
     parser.add_argument("--max_num_vertices", help="threshold for samller clusters", type = int, default = 100)
     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)
@@ -32,6 +33,7 @@ if __name__ == '__main__':
 
     step_threshold = args.step_threshold
     distance = args.distance
+    grid_width = args.grid_width
     max_num_vertices = args.max_num_vertices
     net_size_threshold = args.net_size_threshold
     Nparts = args.Nparts
@@ -44,7 +46,7 @@ if __name__ == '__main__':
     # To use the grouping function, you need to specify the directory of src file
     src_dir = "../src"
 
-    Clustering(design, src_dir, fixed_file, step_threshold, distance,
+    Clustering(design, src_dir, fixed_file, step_threshold, distance, grid_width,
             max_num_vertices, net_size_threshold, Nparts, setup_file,
             RePlace, placement_density, GUI)
 

CodeElements/CodeFlowIntegration/flow.py

@@ -66,6 +66,7 @@ clustering_src_dir = '../Clustering/src'
 chip_width = gridding.GetChipWidth()
 chip_height = gridding.GetChipHeight()
 num_std_cells = gridding.GetNumStdCells()
+grid_width = chip_width / num_cols
 Nparts = 500
 
 # Based on the description of circuit training, [see line 180 at grouper.py]
@@ -80,7 +81,7 @@ print("[INFO] max_num_vertices : ", max_num_vertices)
 
 
 clustering = Clustering(design, clustering_src_dir, fixed_file, step_threshold, distance,
-           max_num_vertices, global_net_threshold, Nparts, setup_file, Replace)
+             grid_width, max_num_vertices, global_net_threshold, Nparts, setup_file, Replace)
 
 cluster_def = "./results/OpenROAD/clustered_netlist.def"
 cluster_lef = "./results/OpenROAD/clusters.lef"