Merge pull request The-OpenROAD-Project#3504 from AcKoucher/scripts-remove-mpl-signature-var

scripts: remove MPL connection signature flow variable

Author: maliberty

docs/user/FlowVariables.md

@@ -208,7 +208,6 @@ configuration file.
 | <a name="RTLMP_NOTCH_WT"></a>RTLMP_NOTCH_WT| Weight for the notch, or the existence of dead space that cannot be used for placement and routing.| 10.0|
 | <a name="RTLMP_OUTLINE_WT"></a>RTLMP_OUTLINE_WT| Weight for violating the fixed outline constraint, meaning that all clusters should be placed within the shape of their parent cluster.| 100.0|
 | <a name="RTLMP_RPT_DIR"></a>RTLMP_RPT_DIR| Path to the directory where reports are saved.| |
-| <a name="RTLMP_SIGNATURE_NET_THRESHOLD"></a>RTLMP_SIGNATURE_NET_THRESHOLD| Minimum number of connections between two clusters to be identified as connected.| 50|
 | <a name="RTLMP_WIRELENGTH_WT"></a>RTLMP_WIRELENGTH_WT| Weight for half-perimiter wirelength.| 100.0|
 | <a name="RULES_JSON"></a>RULES_JSON| json files with the metrics baseline regression rules. In the ORFS Makefile, this defaults to $DESIGN_DIR/rules-base.json, but ORFS does not mandate the users source directory layout and this can be placed elsewhere when the user sets up an ORFS config.mk or from bazel-orfs.| |
 | <a name="RUN_LOG_NAME_STEM"></a>RUN_LOG_NAME_STEM| Stem of the log file name, the log file will be named `$(LOG_DIR)/$(RUN_LOG_NAME_STEM).log`.| run|
@@ -343,7 +342,6 @@ configuration file.
 - [RTLMP_NOTCH_WT](#RTLMP_NOTCH_WT)
 - [RTLMP_OUTLINE_WT](#RTLMP_OUTLINE_WT)
 - [RTLMP_RPT_DIR](#RTLMP_RPT_DIR)
-- [RTLMP_SIGNATURE_NET_THRESHOLD](#RTLMP_SIGNATURE_NET_THRESHOLD)
 - [RTLMP_WIRELENGTH_WT](#RTLMP_WIRELENGTH_WT)
 - [SETUP_REPAIR_SEQUENCE](#SETUP_REPAIR_SEQUENCE)
 - [SETUP_SLACK_MARGIN](#SETUP_SLACK_MARGIN)

flow/scripts/macro_place_util.tcl

@@ -47,7 +47,6 @@ if { [find_macros] != "" } {
   append additional_rtlmp_args " -halo_width $halo_x"
   append additional_rtlmp_args " -halo_height $halo_y"
   append_env_var additional_rtlmp_args RTLMP_MIN_AR -min_ar 1
-  append_env_var additional_rtlmp_args RTLMP_SIGNATURE_NET_THRESHOLD -signature_net_threshold 1
   append_env_var additional_rtlmp_args RTLMP_AREA_WT -area_weight 1
   append_env_var additional_rtlmp_args RTLMP_WIRELENGTH_WT -wirelength_weight 1
   append_env_var additional_rtlmp_args RTLMP_OUTLINE_WT -outline_weight 1

flow/scripts/variables.yaml

@@ -962,13 +962,6 @@ RTLMP_MIN_AR:
   default: 0.33
   stages:
     - floorplan
-RTLMP_SIGNATURE_NET_THRESHOLD:
-  description: >
-    Minimum number of connections between two clusters to be identified as
-    connected.
-  default: 50
-  stages:
-    - floorplan
 RTLMP_AREA_WT:
   description: >
     Weight for the area of the current floorplan.