Merge branch 'main' of github.com:TILOS-AI-Institute/MacroPlacement into main

CodeElements/FDPlacement/.vscode/settings.json

-{
-    "files.associations": {
-        "array": "cpp",
-        "atomic": "cpp",
-        "*.tcc": "cpp",
-        "cctype": "cpp",
-        "clocale": "cpp",
-        "cmath": "cpp",
-        "cstdarg": "cpp",
-        "cstddef": "cpp",
-        "cstdint": "cpp",
-        "cstdio": "cpp",
-        "cstdlib": "cpp",
-        "ctime": "cpp",
-        "cwchar": "cpp",
-        "cwctype": "cpp",
-        "deque": "cpp",
-        "unordered_map": "cpp",
-        "vector": "cpp",
-        "exception": "cpp",
-        "algorithm": "cpp",
-        "functional": "cpp",
-        "iterator": "cpp",
-        "map": "cpp",
-        "memory": "cpp",
-        "memory_resource": "cpp",
-        "numeric": "cpp",
-        "optional": "cpp",
-        "random": "cpp",
-        "string": "cpp",
-        "string_view": "cpp",
-        "system_error": "cpp",
-        "tuple": "cpp",
-        "type_traits": "cpp",
-        "utility": "cpp",
-        "fstream": "cpp",
-        "initializer_list": "cpp",
-        "iomanip": "cpp",
-        "iosfwd": "cpp",
-        "iostream": "cpp",
-        "istream": "cpp",
-        "limits": "cpp",
-        "new": "cpp",
-        "ostream": "cpp",
-        "sstream": "cpp",
-        "stdexcept": "cpp",
-        "streambuf": "cpp",
-        "typeinfo": "cpp"
-    }
-}
\ No newline at end of file

CodeElements/FDPlacement/FD.py

@@ -1057,15 +1057,15 @@ class PBFNetlist:
         y_dir = 0
         src_width = src_ux - src_lx
         src_height = src_uy - src_ly
-        
+
         target_width = target_ux - target_lx
         target_height = target_uy - target_ly
-        
+
         src_cx = (src_lx + src_ux) / 2.0
         src_cy = (src_ly + src_uy) / 2.0
         target_cx = (target_lx + target_ux) / 2.0
         target_cy = (target_ly + target_uy) / 2.0
-         
+
         min_dist = 1e-4
         x_min_dist = (src_width + target_width) / 2.0
         y_min_dist = (src_height + target_height) / 2.0
@@ -1075,8 +1075,8 @@ class PBFNetlist:
         if (abs(target_cy - src_cy) > (y_min_dist - min_dist)):
             # there is no overlap
             return None, None
-       
-        # there is no overlap 
+
+        # there is no overlap
         if (src_cx == target_cx and src_cy == target_cy):
             # fully overlap
             x_dir = -1.0

CodeElements/FDPlacement/README.md

@@ -35,10 +35,38 @@ Here f_x_max (f_y_max) is the absolute value of f_x (f_y) which has the maximum
 After normalization, the standard-cell clusters are moved based on the forces exerted on them.  The move which will push the standard-cell clusters outside of canvas will be canceled.
 
 
+## How to run our implementation
+We provide implementations in both [python](https://github.com/TILOS-AI-Institute/MacroPlacement/blob/main/CodeElements/FDPlacement/FD.py) and [c++](https://github.com/TILOS-AI-Institute/MacroPlacement/tree/main/CodeElements/FDPlacement/src). 
+
+To run the FD placer implemented in python, you need to install all the dependencies of [Circuit Training](https://github.com/google-research/circuit_training.git).
+You can set the testcase and related parameters in [FD.py](https://github.com/TILOS-AI-Institute/MacroPlacement/blob/449e837dc1c2ec927a08976ec7925ddfe53f9f04/CodeElements/FDPlacement/FD.py#L1395).
+Then you can our FD placer as following:
+```
+python FD.py
+```
+
+
+
+
+To run the FD placer implemented in c++, you need to compile c++ codes as following:
+```
+mkdir build
+cd build
+cmake ..
+```
+You can set the related parameters in [main.cpp](https://github.com/TILOS-AI-Institute/MacroPlacement/blob/449e837dc1c2ec927a08976ec7925ddfe53f9f04/CodeElements/FDPlacement/src/main.cpp#L14) before you compile the codes.
+Then you can run FD placer as following:
+```
+./build/fd_placer ariane133/ariane.pb.txt ariane133/ariane.plc
+```
+
+
+
 ## **Experimental results**
 We have tested our codes on the Ariane133 (NanGate45).  The experimental results are presented below.
+The results from our python implementation and our c++ implementation are a little different.  This is due to the precision loss while converting from python codes to C++ codes.
 <p align="center">
-<img src="./ariane133/FD_result_1225.png" width= "1200"/>
+<img src="./ariane133/FD_result_20230112.png" width= "1200"/>
 </p>
 <p align="center">
 Figure 1. results for Ariane133 (NanGate45).  

CodeElements/FDPlacement/src/.vscode/settings.json

-{
-    "C_Cpp.errorSquiggles": "disabled"
-}
\ No newline at end of file

CodeElements/FDPlacement/src/main.cpp

@@ -6,23 +6,27 @@ int main(int argc, char* argv[]) {
   std::string netlist_file = argv[1];
   std::string plc_file = argv[2];
   PBFNetlist design(netlist_file);
-  std::string new_netlist_file = netlist_file + ".new";
+  std::string new_netlist_file = netlist_file + ".os_cpp.txt";
   design.WriteNetlist(new_netlist_file);
   design.RestorePlacement(plc_file);
   const float io_factor = 1.0;
-  const std::vector<int> num_steps { 10, 10, 10 };
-  const std::vector<float> attract_factor { 100, 1.0e-3, 1.0e-5 };
-  const std::vector<float> repel_factor { 0.0, 1.0e6, 1.0e6 };
+  
+  const std::vector<int> num_steps { 100, 100, 100 };
+  const std::vector<float> attract_factor { 100.0, 1.0e-3, 1.0e-5 };
+  const std::vector<float> repel_factor { 0.0, 1.0e6, 1.0e7 };
   const std::vector<float> move_distance_factor { 1.0, 1.0, 1.0 };
+  
   const bool use_current_loc = false;
-  const bool debug_mode = false;
+  const bool debug_mode = true;
   auto start_timestamp_global = std::chrono::high_resolution_clock::now();
+  
   design.FDPlacer(io_factor, num_steps,
                   move_distance_factor,
                   attract_factor,
                   repel_factor,
                   use_current_loc, 
                   debug_mode);
+  
   auto end_timestamp_global = std::chrono::high_resolution_clock::now();
   double total_global_time
       = std::chrono::duration_cast<std::chrono::nanoseconds>(
@@ -30,6 +34,6 @@ int main(int argc, char* argv[]) {
             .count();
   total_global_time *= 1e-9;
   std::cout << "Runtime of FDPlacer : " << total_global_time << std::endl;
-  design.WritePlcFile(plc_file + ".new");
+  design.WritePlcFile(plc_file + ".os_cpp.txt");
   return 0;
 }