config: spell the parallel config tier at the call site (#36250)

test/registered/unit/server_args/test_resolution_declarations.py

@@ -396,9 +396,10 @@ class TestResolutionDeclarations(CustomTestCase):
         mapping = namespace_of(ServerArgs)
         self.assertGreater(len(mapping), 400, "the namespace mapping collapsed")
 
-        shadowed = _live_topology_leaves()
+        # The five sizes keep a live property shadowing the bare name; the
+        # comparison below reaches them anyway, through `get_parallel().config`.
         self.assertGreaterEqual(
-            shadowed
+            _live_topology_leaves()
             & {
                 "tp_size",
                 "pp_size",
@@ -407,8 +408,7 @@ class TestResolutionDeclarations(CustomTestCase):
                 "dcp_size",
             },
             {"tp_size", "pp_size", "moe_dp_size", "attn_cp_size", "dcp_size"},
-            "a parallel size stopped being served from the live topology; if it "
-            "is a plain config leaf now, it belongs in the comparison below",
+            "a parallel size stopped being served from the live topology",
         )
 
         compared = 0
@@ -418,17 +418,16 @@ class TestResolutionDeclarations(CustomTestCase):
             server_args = self._resolve(shape)
             publish(server_args, role="scheduler")
             for field, path in mapping.items():
-                if field in shadowed:
-                    # Served from the process groups by design; `configured_*()`
-                    # is what answers with the configured value, and
-                    # test_launch_path_reads_configured_sizes pins that.
-                    continue
                 groups = path.split(".")
                 accessor = getattr(runtime_context, f"get_{groups[0]}", None)
                 if accessor is None:
                     unreachable.append(f"no get_{groups[0]}() for {path}.{field}")
                     continue
                 node = accessor()
+                if groups[0] == "parallel":
+                    # Bare names there are the live topology; the published
+                    # leaves are one hop down, so the reader takes that hop.
+                    node = node.config
                 try:
                     for group in groups[1:]:
                         node = getattr(node, group)

test/registered/unit/server_args/test_resolution_is_reproducible.py

@@ -844,7 +844,7 @@ class TestACopyStaysResolved(_RestoresProcessState, CustomTestCase):
         self.addCleanup(reset_context)
         reset_context()
         publish(copy_, role="scheduler")
-        self.assertEqual(get_parallel().dist_init_addr, "1.2.3.4:5000")
+        self.assertEqual(get_parallel().config.dist_init_addr, "1.2.3.4:5000")
         self.assertEqual(
             get_schedule().chunked_prefill_size,
             parent.chunked_prefill_size,

test/registered/unit/server_args/test_resolution_reads_no_bag.py

@@ -53,8 +53,7 @@ def _accessor_names():
     names = {
         node.name
         for node in tree.body
-        if isinstance(node, ast.FunctionDef)
-        and (node.name.startswith("get_") or node.name.startswith("configured_"))
+        if isinstance(node, ast.FunctionDef) and node.name.startswith("get_")
     }
     # The context object itself is not a bag: it exists before anything is
     # published, and `declare_late_resolution` calls it deliberately to find
@@ -232,7 +231,7 @@ class TestResolutionReadsNoBag(CustomTestCase):
         """A shrunken accessor set would make every other check pass quietly."""
         self.assertGreaterEqual(
             len(_BAG_ACCESSORS),
-            20,
+            15,
             f"only {len(_BAG_ACCESSORS)} accessors were derived from "
             "runtime_context; the derivation broke",
         )