8.1.x

CHANGES.md

@@ -10,6 +10,22 @@ creating a new release entry be sure to copy & paste the span tag with the
 updated. Only the first match gets replaced, so it's fine to leave the old
 ones in. -->
 
+-------------------------------------------------------------------------------
+## __cylc-8.1.1 (<span actions:bind='release-date'>Coming Soon</span>)__
+
+### Fixes
+
+[#5312](https://github.com/cylc/cylc-flow/pull/5312) - task names must be comma-separated in queue member lists. Any implicit tasks (i.e. with no task definition under runtime) assigned to a queue will generate a warning.
+
+[#5314](https://github.com/cylc/cylc-flow/pull/5314) - Fix broken
+command option: `cylc vip --run-name`.
+
+[#5319](https://github.com/cylc/cylc-flow/pull/5319),
+[#5321](https://github.com/cylc/cylc-flow/pull/5321),
+[#5325](https://github.com/cylc/cylc-flow/pull/5325) -
+Various efficiency optimisations to the scheduler which particularly impact
+workflows with many-to-many dependencies (e.g. `<a> => <b>`).
+
 -------------------------------------------------------------------------------
 ## __cylc-8.1.0 (<span actions:bind='release-date'>Released 2023-01-16</span>)__
 

cylc/flow/cfgspec/workflow.py

@@ -688,7 +688,7 @@ def get_script_common_text(this: str, example: Optional[str] = None):
 
                     If set to 0 this queue is not limited.
                 ''')
-                Conf('members', VDR.V_STRING_LIST, desc='''
+                Conf('members', VDR.V_SPACELESS_STRING_LIST, desc='''
                     A list of member tasks, or task family names to assign to
                     this queue.
 

cylc/flow/config.py

@@ -224,6 +224,7 @@ class WorkflowConfig:
 
     CHECK_CIRCULAR_LIMIT = 100  # If no. tasks > this, don't check circular
     VIS_N_POINTS = 3
+    MAX_WARNING_LINES = 5
 
     def __init__(
         self,
@@ -532,6 +533,9 @@ def __init__(
         self._check_special_tasks()  # adds to self.implicit_tasks
         self._check_explicit_cycling()
 
+        self._warn_if_queues_have_implicit_tasks(
+            self.cfg, self.taskdefs, self.MAX_WARNING_LINES)
+
         self._check_implicit_tasks()
         self._check_sequence_bounds()
         self.validate_namespace_names()
@@ -571,6 +575,38 @@ def __init__(
 
         self.mem_log("config.py: end init config")
 
+    @staticmethod
+    def _warn_if_queues_have_implicit_tasks(
+        config, taskdefs, max_warning_lines
+    ):
+        """Warn if queues contain implict tasks.
+        """
+        implicit_q_msg = ''
+
+        # Get the names of the first N implicit queue tasks:
+        for queue in config["scheduling"]["queues"]:
+            for name in config["scheduling"]["queues"][queue][
+                "members"
+            ]:
+                if (
+                    name not in taskdefs
+                    and name not in config['runtime']
+                    and len(implicit_q_msg.split('\n')) <= max_warning_lines
+                ):
+                    implicit_q_msg += f'\n * task {name!r} in queue {queue!r}'
+
+        # Warn users if tasks are implied by queues.
+        if implicit_q_msg:
+            truncation_msg = (
+                f"\n...showing first {max_warning_lines} tasks..."
+                if len(implicit_q_msg.split('\n')) > max_warning_lines
+                else ""
+            )
+            LOG.warning(
+                'Queues contain tasks not defined in'
+                f' runtime: {implicit_q_msg}{truncation_msg}'
+            )
+
     def prelim_process_graph(self) -> None:
         """Ensure graph is not empty; set integer cycling mode and icp/fcp = 1
         for simplest "R1 = foo" type graphs.