Merge pull request #2185 from The-OpenROAD-Project-staging/no-sta-threads

Temporarily disable sta threading due to random MT failures

Author: maliberty

flow/Makefile

@@ -287,7 +287,7 @@ endif
 export OPENROAD_EXE      ?= $(abspath $(FLOW_HOME)/../tools/install/OpenROAD/bin/openroad)
 export OPENSTA_EXE       ?= $(abspath $(FLOW_HOME)/../tools/install/OpenROAD/bin/sta)
 
-OPENROAD_ARGS            = -no_init $(OR_ARGS)
+OPENROAD_ARGS            = -no_init -threads $(NUM_CORES) $(OR_ARGS)
 OPENROAD_CMD             = $(OPENROAD_EXE) -exit $(OPENROAD_ARGS)
 OPENROAD_NO_EXIT_CMD     = $(OPENROAD_EXE) $(OPENROAD_ARGS)
 OPENROAD_GUI_CMD         = $(OPENROAD_EXE) -gui $(OR_ARGS)

flow/scripts/detail_route.tcl

@@ -8,8 +8,6 @@ if { [info exists ::env(USE_WXL)]} {
 load_design $db_file 4_cts.sdc
 set_propagated_clock [all_clocks]
 
-set_thread_count $::env(NUM_CORES)
-
 set additional_args ""
 if { [info exists ::env(dbProcessNode)]} {
   append additional_args " -db_process_node $::env(dbProcessNode)"

flow/scripts/global_route.tcl

@@ -2,8 +2,6 @@ utl::set_metrics_stage "globalroute__{}"
 source $::env(SCRIPTS_DIR)/load.tcl
 load_design 4_cts.odb 4_cts.sdc
 
-set_thread_count $::env(NUM_CORES)
-
 if {[info exist env(PRE_GLOBAL_ROUTE)]} {
   source $env(PRE_GLOBAL_ROUTE)
 }

flow/scripts/load.tcl

@@ -2,6 +2,9 @@ source $::env(SCRIPTS_DIR)/util.tcl
 
 source $::env(SCRIPTS_DIR)/report_metrics.tcl
 
+# Temporarily disable sta's threading due to random failures
+sta::set_thread_count 1
+
 proc load_design {design_file sdc_file} {
   # Read liberty files
   source $::env(SCRIPTS_DIR)/read_liberty.tcl

flow/scripts/macro_place_util.tcl

@@ -1,5 +1,3 @@
-set_thread_count $::env(NUM_CORES)
-
 proc find_macros {} {
   set macros ""