remove parallel in Dispatcher.dispatch_obsgroup_detector

csst_dag/dag/_dispatcher.py

@@ -118,7 +118,7 @@ def extract_basis_table(dlist: list[dict], basis_keys: tuple) -> table.Table:
 
 
 def split_data_basis(data_basis: table.Table, n_split: int = 1) -> list[table.Table]:
-    """Split data basis into n_split parts."""
+    """Split data basis into n_split parts via obs_id"""
     assert (
         np.unique(data_basis["dataset"]).size == 1
     ), "Only one dataset is allowed for splitting."
@@ -546,16 +546,8 @@ class Dispatcher:
     def dispatch_obsgroup_detector(
         plan_basis: table.Table,
         data_basis: table.Table,
-        n_jobs: int = 1,
+        # n_jobs: int = 1,
     ):
-        # parallel
-        if n_jobs != 1:
-            task_list = joblib.Parallel(n_jobs=n_jobs)(
-                joblib.delayed(Dispatcher.dispatch_obsid)(plan_basis, _)
-                for _ in split_data_basis(data_basis, n_split=n_jobs)
-            )
-            return sum(task_list, [])
-
         # unique obsgroup basis (using group_by)
         obsgroup_basis = plan_basis.group_by(
             keys=[