GCD design updates based on AutoTuner runs

Adjusted padding flow variables per review feedback

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

Author: jeffng-or

flow/designs/asap7/gcd/autotuner.json

@@ -3,8 +3,8 @@
     "_SDC_CLK_PERIOD": {
         "type": "float",
         "minmax": [
-            300,
-            1000
+            200,
+            500
         ],
         "step": 0
     },
@@ -19,16 +19,16 @@
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
     "CELL_PAD_IN_SITES_DETAIL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
@@ -44,7 +44,7 @@
         "type": "float",
         "minmax": [
             0.0,
-            0.1
+            0.2
         ],
         "step": 0
     },

flow/designs/asap7/gcd/config.mk

@@ -12,3 +12,8 @@ export PLACE_DENSITY          = 0.35
 # a smoketest for this option, there are a
 # few last gasp iterations
 export SKIP_LAST_GASP ?= 1
+
+# AutoTuner results
+export CELL_PAD_IN_SITES_GLOBAL_PLACEMENT = 0
+export CELL_PAD_IN_SITES_DETAIL_PLACEMENT = 0
+export PLACE_DENSITY_LB_ADDON = 0.14

flow/designs/asap7/gcd/constraint.sdc

@@ -2,7 +2,7 @@ current_design gcd
 
 set clk_name  core_clock
 set clk_port_name clk
-set clk_period 390 
+set clk_period 310 
 set clk_io_pct 0.2
 
 set clk_port [get_ports $clk_port_name]

flow/designs/asap7/gcd/metadata-base-ok.json

@@ -1,38 +1,38 @@
 {
     "synth__design__instance__area__stdcell": {
-        "value": 54.33,
+        "value": 43.43,
         "compare": "<="
     },
     "constraints__clocks__count": {
         "value": 1,
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 65,
+        "value": 53,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 638,
+        "value": 544,
         "compare": "<="
     },
     "detailedplace__design__violations": {
         "value": 0,
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 56,
+        "value": 53,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 56,
+        "value": 47,
         "compare": "<="
     },
     "globalroute__antenna_diodes_count": {
         "value": 0,
         "compare": "<="
     },
     "detailedroute__route__wirelength": {
-        "value": 1603,
+        "value": 1490,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -48,23 +48,23 @@
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -28.55,
+        "value": -77.18,
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 70,
+        "value": 60,
         "compare": "<="
     },
     "finish__timing__drv__setup_violation_count": {
-        "value": 28,
+        "value": 32,
         "compare": "<="
     },
     "finish__timing__drv__hold_violation_count": {
         "value": 100,
         "compare": "<="
     },
     "finish__timing__wns_percent_delay": {
-        "value": -13.38,
+        "value": -33.9,
         "compare": ">="
     }
 }

flow/designs/asap7/gcd/rules-base.json

@@ -3,16 +3,16 @@
     "_SDC_CLK_PERIOD": {
         "type": "float",
         "minmax": [
-            7.0,
+            2.0,
             12.0
         ],
         "step": 0
     },
     "CORE_UTILIZATION": {
         "type": "int",
         "minmax": [
-            5,
-            30
+            15,
+            50
         ],
         "step": 1
     },
@@ -35,16 +35,16 @@
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
     "CELL_PAD_IN_SITES_DETAIL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
@@ -60,7 +60,7 @@
         "type": "float",
         "minmax": [
             0.0,
-            0.1
+            0.2
         ],
         "step": 0
     },

flow/designs/ihp-sg13g2/gcd/autotuner.json

@@ -7,5 +7,12 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 export USE_FILL = 1
 
 export PLACE_DENSITY ?= 0.88
-export CORE_UTILIZATION = 20
+export CORE_UTILIZATION = 33
 export TNS_END_PERCENT = 100
+export CORE_ASPECT_RATIO = 0.52
+export CELL_PAD_IN_SITES_GLOBAL_PLACEMENT = 1
+export CELL_PAD_IN_SITES_DETAIL_PLACEMENT = 0
+export PLACE_DENSITY_LB_ADDON = 0.094
+
+#Temporary: enable post-DRT repair antennas locally - remove once set in platforms config.mk
+export SKIP_ANTENNA_REPAIR_POST_DRT = 0

flow/designs/ihp-sg13g2/gcd/config.mk

@@ -2,7 +2,7 @@ current_design gcd
 
 set clk_name  core_clock
 set clk_port_name clk
-set clk_period 10.4
+set clk_period 2.6
 set clk_io_pct 0.2
 
 set clk_port [get_ports $clk_port_name]