files to recreate GRT/DPL failure on sky130hd gcd

Signed-off-by: Jeff Ng <[email protected]>

Author: jeffng-or

flow/designs/sky130hd/gcd/config.mk

@@ -7,7 +7,17 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 # Adders degrade GCD
 export ADDER_MAP_FILE :=
 
-export CORE_UTILIZATION = 40
+#export CORE_UTILIZATION = 40
 export TNS_END_PERCENT = 100
 export EQUIVALENCE_CHECK   ?=   1
 export REMOVE_CELLS_FOR_EQY = sky130_fd_sc_hd__tapvpwrvgnd*
+
+# AutoTuner parameters to trigger failure
+export CELL_PAD_IN_SITES_DETAIL_PLACEMENT = 2
+export CELL_PAD_IN_SITES_GLOBAL_PLACEMENT = 2
+export CORE_ASPECT_RATIO = 0.6738200737000811
+export CORE_UTILIZATION = 35
+export CTS_CLUSTER_DIAMETER = 321
+export CTS_CLUSTER_SIZE = 89
+export PLACE_DENSITY_LB_ADDON = 0.0649907957849524
+export FASTROUTE_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/fastroute.tcl

flow/designs/sky130hd/gcd/constraint.sdc

@@ -2,7 +2,7 @@ current_design gcd
 
 set clk_name  core_clock
 set clk_port_name clk
-set clk_period 1.1
+set clk_period 2.2688840683796734
 set clk_io_pct 0.2
 
 set clk_port [get_ports $clk_port_name]

flow/designs/sky130hd/gcd/fastroute.tcl

@@ -0,0 +1,7 @@
+set_global_routing_layer_adjustment $::env(MIN_ROUTING_LAYER)-$::env(MAX_ROUTING_LAYER) 0.2
+
+set_routing_layers -clock $::env(MIN_CLK_ROUTING_LAYER)-$::env(MAX_ROUTING_LAYER)
+set_routing_layers -signal $::env(MIN_ROUTING_LAYER)-$::env(MAX_ROUTING_LAYER)
+
+
+set_global_routing_layer_adjustment $::env(MIN_ROUTING_LAYER)-$::env(MAX_ROUTING_LAYER) 0.26279020624529953