Add opt-in row-owned raw boundary exchange for blocked refinement

src/CelerisLab/lbm/refinement_tables.py

@@ -77,6 +77,9 @@ class _BlockedBoundary:
     flags: object = None
     device: object = None
     kernel: object = None
+    last_raw: object = None
+    interval_integral: object = None
+    accumulate: object = None
 
 
 def _prepare_blocked_boundary(boundary, layout, cfg, jets):
@@ -84,11 +87,17 @@ def _prepare_blocked_boundary(boundary, layout, cfg, jets):
         return None
     fluid_idx, dirs, q, body_id, rx, ry, _, fallback = boundary.curved_host
     tables, _ = blocked_link_tables(layout, boundary.flags, fluid_idx, dirs, q, fallback)
+    # Physical row identity excludes body_id: duplicate owners are always wrong.
+    keys = np.column_stack((fluid_idx, dirs))
+    if len(np.unique(keys, axis=0)) != len(keys):
+        raise ValueError("duplicate physical boundary cut-link")
+    tables.update(body_id=np.asarray(body_id, np.int32), rx=np.asarray(rx, np.float32),
+                  ry=np.asarray(ry, np.float32), aperture=np.zeros(len(dirs), bool))
     actuated = bool(jets) or any(o.surface_actuation is not None for o in boundary.objects)
     if actuated:
         cfg = replace(cfg)
         cfg.validate()
-        tables["surface_velocity"], _ = surface_link_velocity(
+        tables["surface_velocity"], tables["aperture"] = surface_link_velocity(
             boundary.objects, cfg, boundary.flags, fluid_idx, dirs, body_id, rx, ry,
             jets=jets, hits=boundary.curved_hits)
     return _BlockedBoundary(boundary, tables, jets, actuated,