initial scaffold for tunable variables

Signed-off-by: Jack Luar <[email protected]>

Author: luarss

flow/scripts/variables.yaml

@@ -94,13 +94,15 @@ CORE_UTILIZATION:
     The core utilization percentage (0-100).
   stages:
     - floorplan
+  tunable: 1
 CORE_AREA:
   description: >
     The core area specified as a list of lower-left and upper-right corners in
     microns
     (X1 Y1 X2 Y2).
   stages:
     - floorplan
+  tunable: 1
 REPORT_CLOCK_SKEW:
   description: >
     Report clock skew as part of reporting metrics, starting at CTS, before which
@@ -337,6 +339,7 @@ CELL_PAD_IN_SITES_DETAIL_PLACEMENT:
     - cts
     - grt
   default: 0
+  tunable: 1
 PLACE_PINS_ARGS:
   description: |
     Arguments to place_pins
@@ -358,6 +361,7 @@ PLACE_DENSITY_LB_ADDON:
   stages:
     - floorplan
     - place
+  tunable: 1
 REPAIR_PDN_VIA_LAYER:
   description: |
     Remove power grid vias which generate DRC violations after detailed routing.
@@ -644,13 +648,15 @@ CORE_MARGIN:
     is undefined.
   stages:
     - floorplan
+  tunable: 1
 DIE_AREA:
   description: >
     The die area specified as a list of lower-left and upper-right corners in
     microns
     (X1 Y1 X2 Y2).
   stages:
     - floorplan
+  tunable: 1
 RESYNTH_AREA_RECOVER:
   description: |
     Enable re-synthesis for area reclaim.
@@ -693,12 +699,14 @@ CTS_CLUSTER_DIAMETER:
   default: 20
   stages:
     - cts
+  tunable: 1
 CTS_CLUSTER_SIZE:
   description: >
     Maximum number of sinks per cluster.
   default: 50
   stages:
     - cts
+  tunable: 1
 CTS_SNAPSHOT:
   description: |
     Creates ODB/SDC files prior to clock net and setup/hold repair.

tools/AutoTuner/requirements.txt

@@ -10,3 +10,4 @@ protobuf==3.20.3
 SQLAlchemy==1.4.17
 urllib3<=1.26.15
 matplotlib==3.10.0
+pyyaml==6.0.1