openroad: fix final output

Author: phsauter

openroad/scripts/chip.tcl

@@ -25,6 +25,7 @@ source scripts/init_tech.tcl
 
 set log_id 0
 
+
 ###############################################################################
 # Initialization                                                              #
 ###############################################################################
@@ -291,6 +292,7 @@ report_metrics "${log_id_str}_${proj_name}.grt_repaired"
 save_checkpoint ${log_id_str}_${proj_name}.grt_repaired
 report_image "${log_id_str}_${proj_name}.grt_repaired" true true false true
 
+
 ###############################################################################
 # DETAILED ROUTE                                                              #
 ###############################################################################
@@ -320,6 +322,7 @@ save_checkpoint ${log_id_str}_${proj_name}.drt
 report_metrics "${log_id_str}_${proj_name}.drt"
 report_image "${log_id_str}_${proj_name}.drt" true false false true
 
+
 ###############################################################################
 # FINISHING                                                                   #
 ###############################################################################
@@ -335,10 +338,7 @@ global_connect
 
 save_checkpoint ${log_id_str}_${proj_name}.final
 report_image "${log_id_str}_${proj_name}.final" true true false true
-define_process_corner -ext_model_index 0 X
-extract_parasitics -ext_model_file IHP_rcx_patterns.rules
-write_spef out/${proj_name}.spef
-read_spef  out/${proj_name}.spef; # readback parasitics for OpenSTA
+estimate_parasitics -global_routing
 report_metrics "${log_id_str}_${proj_name}.final"
 
 utl::report "Write output"
@@ -348,4 +348,12 @@ write_verilog                  out/${proj_name}.v
 write_db                       out/${proj_name}.odb
 write_sdc                      out/${proj_name}.sdc
 
+## WARNING: Currently the extract_parasitics command removes metal patches (eg for min area)
+## So if you want to use it, do so at the very end after writing out the def and odb files
+# define_process_corner -ext_model_index 0 X
+# extract_parasitics -ext_model_file IHP_rcx_patterns.rules
+# write_spef out/${proj_name}.spef
+# read_spef  out/${proj_name}.spef; # readback parasitics for OpenSTA
+# report_metrics "${log_id_str}_${proj_name}.extract"
+
 exit