Merge pull request #364 from grebe/local_cts

Add option to run clock tree synthesis locally.

place_and_route/build_defs.bzl

@@ -109,6 +109,10 @@ place_and_route = rule(
             default = True,
             doc = "Enable/Disable improve_placement pass.",
         ),
+        "local_clock_tree_synthesis_execution": attr.bool(
+            default = False,
+            doc = "Whether to run clock tree synthesis on a remote executor. If the clock tree synthesis exceeds 15 minutes flip this setting.",
+        ),
         "local_detailed_routing_execution": attr.bool(
             default = False,
             doc = "Whether to run detailed routing on a remote executor. If the detailed routing exceeds 15 minutes flip this setting.",

place_and_route/private/clock_tree_synthesis.bzl

@@ -61,11 +61,16 @@ def clock_tree_synthesis(ctx, open_road_info):
     if open_road_configuration.check_placement:
         open_road_commands.append("check_placement")
 
+    execution_requirements = {}
+    if ctx.attr.local_clock_tree_synthesis_execution:
+        execution_requirements["no-remote-exec"] = ""
+
     command_output = openroad_command(
         ctx,
         commands = open_road_commands,
         input_db = open_road_info.output_db,
         inputs = inputs,
+        execution_requirements = execution_requirements,
         step_name = "clock_tree_synthesis",
     )