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Tighten sky130hs gcd #3647

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Merged
merged 1 commit into from
Nov 10, 2025
Merged

Tighten sky130hs gcd #3647

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2 changes: 1 addition & 1 deletion flow/designs/sky130hs/gcd/config.mk
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ export ABC_AREA = 1
# Adders degrade GCD
export ADDER_MAP_FILE :=

export CORE_UTILIZATION = 40
export CORE_UTILIZATION = 45
export PLACE_DENSITY_LB_ADDON = 0.1
export TNS_END_PERCENT = 100
export EQUIVALENCE_CHECK ?= 1
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2 changes: 1 addition & 1 deletion flow/designs/sky130hs/gcd/constraint.sdc
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ current_design gcd

set clk_name core_clock
set clk_port_name clk
set clk_period 1.9
set clk_period 1.4
set clk_io_pct 0.2

set clk_port [get_ports $clk_port_name]
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65 changes: 40 additions & 25 deletions flow/designs/sky130hs/gcd/rules-base.json
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
{
"detailedroute__flow__warnings__count:DRT-0349": {
"value": 10,
"cts__flow__warnings__count:RSZ-0062": {
"value": 1,
"compare": "<=",
"level": "warning"
},
"finish__flow__warnings__count:GUI-0076": {
"value": 1,
"detailedroute__flow__warnings__count:DRT-0349": {
"value": 10,
"compare": "<=",
"level": "warning"
},
Expand All @@ -24,11 +24,26 @@
"compare": "<=",
"level": "warning"
},
"floorplan__flow__warnings__count:RSZ-0062": {
"value": 1,
"compare": "<=",
"level": "warning"
},
"floorplan__flow__warnings__count:RSZ-0075": {
"value": 153,
"compare": "<=",
"level": "warning"
},
"globalroute__flow__warnings__count:DRT-0349": {
"value": 10,
"compare": "<=",
"level": "warning"
},
"globalroute__flow__warnings__count:RSZ-0062": {
"value": 1,
"compare": "<=",
"level": "warning"
},
"synth__design__instance__area__stdcell": {
"value": 4532.91,
"compare": "<="
Expand All @@ -38,63 +53,63 @@
"compare": "=="
},
"placeopt__design__instance__area": {
"value": 5134,
"value": 6702,
"compare": "<="
},
"placeopt__design__instance__count__stdcell": {
"value": 622,
"value": 741,
"compare": "<="
},
"detailedplace__design__violations": {
"value": 0,
"compare": "=="
},
"cts__design__instance__count__setup_buffer": {
"value": 54,
"value": 75,
"compare": "<="
},
"cts__design__instance__count__hold_buffer": {
"value": 54,
"compare": "<="
},
"cts__timing__setup__ws": {
"value": -0.095,
"value": -0.45,
"compare": ">="
},
"cts__timing__setup__tns": {
"value": -0.38,
"value": -13.2,
"compare": ">="
},
"cts__timing__hold__ws": {
"value": -0.095,
"value": -0.07,
"compare": ">="
},
"cts__timing__hold__tns": {
"value": -0.38,
"value": -0.28,
"compare": ">="
},
"globalroute__antenna_diodes_count": {
"value": 100,
"compare": "<="
},
"globalroute__timing__setup__ws": {
"value": -0.095,
"value": -0.635,
"compare": ">="
},
"globalroute__timing__setup__tns": {
"value": -0.38,
"value": -19.1,
"compare": ">="
},
"globalroute__timing__hold__ws": {
"value": -0.095,
"value": -0.07,
"compare": ">="
},
"globalroute__timing__hold__tns": {
"value": -0.38,
"value": -0.28,
"compare": ">="
},
"detailedroute__route__wirelength": {
"value": 10120,
"value": 15082,
"compare": "<="
},
"detailedroute__route__drc_errors": {
Expand All @@ -110,39 +125,39 @@
"compare": "<="
},
"detailedroute__timing__setup__ws": {
"value": -0.095,
"value": -0.341,
"compare": ">="
},
"detailedroute__timing__setup__tns": {
"value": -0.38,
"value": -7.52,
"compare": ">="
},
"detailedroute__timing__hold__ws": {
"value": -0.095,
"value": -0.07,
"compare": ">="
},
"detailedroute__timing__hold__tns": {
"value": -0.38,
"value": -0.28,
"compare": ">="
},
"finish__timing__setup__ws": {
"value": -0.095,
"value": -0.552,
"compare": ">="
},
"finish__timing__setup__tns": {
"value": -0.38,
"value": -15.2,
"compare": ">="
},
"finish__timing__hold__ws": {
"value": -0.095,
"value": -0.07,
"compare": ">="
},
"finish__timing__hold__tns": {
"value": -0.38,
"value": -0.28,
"compare": ">="
},
"finish__design__instance__area": {
"value": 5389,
"value": 8200,
"compare": "<="
}
}