router minor-cleanup

dream/simulation/Machine.py

@@ -1111,17 +1111,17 @@ class Machine(CoreObject):
         return self.loadRng.generateNumber()
     
             
-    #===========================================================================
-    # find candidate operators within the free operators
-    #===========================================================================
-    def findCandidateOperator(self):
-        # TODO: this way no sorting is performed
-        # find an available operator
-        candidateOperator=self.operatorPool.findAvailableOperator()
-        # append the station into its candidateStations
-        if candidateOperator:   # if there was an operator found append the Machine on his candidateStations
-            candidateOperator.candidateStations.append(self)
-        return candidateOperator
+#     #===========================================================================
+#     # find candidate operators within the free operators
+#     #===========================================================================
+#     def findCandidateOperator(self):
+#         # TODO: this way no sorting is performed
+#         # find an available operator
+#         candidateOperator=self.operatorPool.findAvailableOperator()
+#         # append the station into its candidateStations
+#         if candidateOperator:   # if there was an operator found append the Machine on his candidateStations
+#             candidateOperator.candidateStations.append(self)
+#         return candidateOperator
     
     #===========================================================================
     # checks whether the entity can proceed to a successor object

dream/simulation/Operator.py

@@ -202,12 +202,16 @@ class Operator(ObjectResource):
                     machine.timeWaiting=self.env.now-machine.broker.timeWaitForOperatorStarted
                 else:
                     machine.timeWaiting=self.env.now-machine.timeLastEntityLeft
-                # find the stations that hold critical entities
+                # find the stations that hold or are about to be delivered critical entities  
                 if self in router.preemptiveOperators:
-                    for entity in station.getActiveObjectQueue():
-                        if entity.isCritical:
+                    for entity in machine.getActiveObjectQueue():
+                        if entity in router.pending and entity.isCritical:
                             machine.critical=True
                             break
+                    for previous in machine.previous:
+                        for entity in previous.getActiveObjectQueue():
+                            if entity in router.pending and entity.isCritical:
+                                machine.critical=True
         # sort the stations according their timeWaiting
         self.candidateStations.sort(key= lambda x: x.timeWaiting, reverse=True)
         # sort the stations if they hold critical entities

dream/simulation/OperatorRouterManaged.py

@@ -52,6 +52,7 @@ class RouterManaged(Router):
         self.schedulingRule='WT'
         # boolean flag to check whether the Router should perform sorting on operators and on pendingEntities
         self.sorting=sorting
+        self.entitiesWithOccupiedReceivers=[]        # list of entities that have no available receivers
         
     #===========================================================================
     #                         the initialize method
@@ -67,6 +68,7 @@ class RouterManaged(Router):
         self.multipleCriterionList=[]
         # TODO: find out which must be the default for the scheduling Rule
         self.schedulingRule='WT'
+        self.entitiesWithOccupiedReceivers=[]
         
     # =======================================================================
     #                          the run method
@@ -248,6 +250,7 @@ class RouterManaged(Router):
     def findPendingEntities(self):
         from Globals import G
         self.pending=[]             # list of entities that are pending
+        self.criticalPending=[]
         for machine in self.pendingMachines:
             self.pending.append(machine.currentEntity)
         for entity in G.pendingEntities: