improve QoR by more aggressive timing repair

1) changed post-CTS default timing repair from 5% to 100% of violating endpoints
2) removed -skip_pin_swap from private PDK designs
3) retained 5% timing repair for a few runtime intensive private PDK designs

Signed-off-by: Cho Moon <[email protected]>

Author: precisionmoon

flow/Makefile

@@ -104,8 +104,9 @@
 # Default design
 DESIGN_CONFIG ?= ./designs/nangate45/gcd/config.mk
 
-# Default TNS_END_PERCENT value
-export TNS_END_PERCENT ?=5
+# Default TNS_END_PERCENT value for post CTS timing repair
+# Try fixing all violating endpoints by default (reduce to 5% for runtime)
+export TNS_END_PERCENT ?=100
 
 # If we are running headless use offscreen rendering for save_image
 ifndef DISPLAY

flow/designs/gf12/bp_single/config.mk

@@ -3,6 +3,7 @@ export DESIGN_NAME = bsg_chip
 export PLATFORM    = gf12
 
 export SKIP_GATE_CLONING = 1
+export TNS_END_PERCENT = 5
 
 # export VERILOG_FILES = $(PLATFORM_DIR)/bp/bsg_ac_black_parrot_single_core_v0/bsg_chip.sv2v.v
 export VERILOG_FILES =  $(PLATFORM_DIR)/bp/bsg_ac_black_parrot_single_core_v0/yosys/synth_don_abc_script.v \

flow/designs/gf12/bp_single/config_mpl2.mk

@@ -2,6 +2,9 @@ export DESIGN_NICKNAME = bp_single
 export DESIGN_NAME = bsg_chip
 export PLATFORM    = gf12
 
+export SKIP_GATE_CLONING = 1
+export TNS_END_PERCENT = 5
+
 export SYNTH_HIERARCHICAL = 1
 export RTLMP_FLOW = True
 #

flow/designs/gf12/ca53/config.mk

@@ -65,5 +65,6 @@ else
 export DESIGN_TYPE = CELL_NODEN
 endif
 
-export SKIP_PIN_SWAP          = 1
+#export SKIP_PIN_SWAP          = 1
 export SKIP_INCREMENTAL_REPAIR = 1
+export TNS_END_PERCENT = 5

flow/designs/gf12/jpeg/config.mk

@@ -20,5 +20,6 @@ else
 export DESIGN_TYPE = CELL_NODEN
 endif
 
-export SKIP_PIN_SWAP     = 1
+#export SKIP_PIN_SWAP     = 1
 export SKIP_GATE_CLONING = 1
+

flow/designs/intel16/aes/config.mk

@@ -15,4 +15,5 @@ export CORE_AREA   = 1.26 1.89 248 248
 
 
 export PLACE_DENSITY = uniform
-export SKIP_PIN_SWAP = 1
+#export SKIP_PIN_SWAP = 1
+

flow/designs/intel16/aes/metadata-base-ok.json

@@ -8,7 +8,7 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 9564,
+        "value": 8588,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
@@ -20,27 +20,27 @@
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 1198,
+        "value": 1158,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
         "value": 1129,
         "compare": "<="
     },
     "detailedroute__route__wirelength": {
-        "value": 283519,
+        "value": 265022,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
         "value": 0,
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -192.96,
+        "value": -175.26,
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 9317,
+        "value": 8885,
         "compare": "<="
     },
     "finish__timing__drv__setup_violation_count": {