add --read_rr_edge_delay_offset_file command line option

Author: soheilshahrouz

libs/librrgraph/src/io/rr_graph_reader.cpp

@@ -118,7 +118,7 @@ void load_rr_file(RRGraphBuilder* rr_graph_builder,
 }
 
 void load_rr_edge_attribute_offset_file(RRGraphBuilder& rr_graph_builder,
-                                        RRGraphView& rr_graph,
+                                        const RRGraphView& rr_graph,
                                         std::string_view rr_edge_attribute_offset_filename) {
     std::ifstream file(rr_edge_attribute_offset_filename.data());
 

libs/librrgraph/src/io/rr_graph_reader.h

@@ -36,7 +36,7 @@ void load_rr_file(RRGraphBuilder* rr_graph_builder,
                   bool is_flat);
 
 void load_rr_edge_attribute_offset_file(RRGraphBuilder& rr_graph_builder,
-                                        RRGraphView& rr_graph,
+                                        const RRGraphView& rr_graph,
                                         std::string_view rr_edge_attribute_offset_filename);
 
 #endif /* RR_GRAPH_READER_H */

vpr/src/base/SetupVPR.cpp

@@ -232,6 +232,7 @@ void SetupVPR(const t_options* options,
     SetupPackerOpts(*options, packerOpts);
     routingArch->write_rr_graph_filename = options->write_rr_graph_file;
     routingArch->read_rr_graph_filename = options->read_rr_graph_file;
+    routingArch->read_rr_edge_delay_offset_filename = options->read_rr_edge_delay_offset_file;
 
     for (auto has_global_routing : arch->layer_global_routing) {
         device_ctx.inter_cluster_prog_routing_resources.emplace_back(has_global_routing);

vpr/src/base/read_options.cpp

@@ -1623,6 +1623,13 @@ argparse::ArgumentParser create_arg_parser(const std::string& prog_name, t_optio
         .metavar("RR_GRAPH_FILE")
         .show_in(argparse::ShowIn::HELP_ONLY);
 
+    file_grp.add_argument(args.read_rr_edge_delay_offset_file, "--read_rr_edge_delay_offset_file")
+        .help(
+            "to be written")
+        .metavar("RR_GRAPH_EDGE_DELAY_OFFSET_FILE")
+        .show_in(argparse::ShowIn::HELP_ONLY);
+
+
     file_grp.add_argument(args.write_rr_graph_file, "--write_rr_graph")
         .help("Writes the routing resource graph to the specified file")
         .metavar("RR_GRAPH_FILE")
@@ -3148,7 +3155,7 @@ void set_conditional_defaults(t_options& args) {
 
 bool verify_args(const t_options& args) {
     /*
-     * Check for conflicting paramaters or dependencies where one parameter set requires another parameter to be included
+     * Check for conflicting parameters or dependencies where one parameter set requires another parameter to be included
      */
     if (args.read_rr_graph_file.provenance() == Provenance::SPECIFIED
         && args.RouteChanWidth.provenance() != Provenance::SPECIFIED) {

vpr/src/base/read_options.h

@@ -28,6 +28,7 @@ struct t_options {
     argparse::ArgValue<std::string> constraints_file;
     argparse::ArgValue<std::string> write_rr_graph_file;
     argparse::ArgValue<std::string> read_rr_graph_file;
+    argparse::ArgValue<std::string> read_rr_edge_delay_offset_file;
     argparse::ArgValue<std::string> write_initial_place_file;
     argparse::ArgValue<std::string> read_initial_place_file;
     argparse::ArgValue<std::string> read_vpr_constraints_file;

vpr/src/base/vpr_types.h

@@ -1416,7 +1416,7 @@ struct t_det_routing_arch {
     float R_minW_pmos;
 
     std::string read_rr_graph_filename;
-    std::string read_rr_edge_attribute_offset_filename;
+    std::string read_rr_edge_delay_offset_filename;
     std::string write_rr_graph_filename;
 };
 

vpr/src/route/rr_graph.cpp

@@ -830,6 +830,12 @@ void create_rr_graph(const t_graph_type graph_type,
         }
     }
 
+    if (!det_routing_arch->read_rr_edge_delay_offset_filename.empty()) {
+        load_rr_edge_attribute_offset_file(mutable_device_ctx.rr_graph_builder,
+                                           device_ctx.rr_graph,
+                                           det_routing_arch->read_rr_edge_delay_offset_filename);
+    }
+
     if (is_flat) {
         int delayless_switch = get_delayless_switch_id(det_routing_arch, load_rr_graph);
         VTR_ASSERT(delayless_switch != OPEN);