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dream
dream
Commit fc9b82db authored by Ioannis Papagiannopoulos's avatar Ioannis Papagiannopoulos Committed by Georgios Dagkakis
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router minor-cleanup

parent e06031a0
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Showing with 120 additions and 116 deletions
dream/simulation/Machine.py
View file @ fc9b82db
......@@ -1097,17 +1097,17 @@ 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
View file @ fc9b82db
......@@ -200,12 +200,16 @@ 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/OperatorRouter.py
View file @ fc9b82db
......@@ -56,14 +56,16 @@ class Router(ObjectInterruption):
# flag to notify whether the router is already invoked
self.invoked=False
self.criticalPending=[] # list of critical entities that are pending
# self.criticalPending=[] # list of critical entities that are pending
self.preemptiveOperators=[] # list of preemptiveOperators that should preempt their machines
self.conflictingOperators=[] # list with the operators that have candidateEntity with conflicting candidateReceivers
self.conflictingEntities=[] # entities with conflictingReceivers
self.conflictingStations=[] # stations with conflicting operators
self.occupiedReceivers=[] # occupied candidateReceivers of a candidateEntity
self.entitiesWithOccupiedReceivers=[] # list of entities that have no available receivers
self.criticalQueues=[]
# self.entitiesWithOccupiedReceivers=[] # list of entities that have no available receivers
#===========================================================================
# the initialize method
......@@ -73,8 +75,10 @@ class Router(ObjectInterruption):
# signal used to initiate the generator of the Router
self.isCalled=self.env.event()
# list that holds all the objects that can receive
self.pendingObjects=[]
self.calledOperator=[]
# self.pendingObjects=[]
self.pendingMachines=[]
self.pendingQueues=[]
# self.calledOperator=[]
# list of the operators that may handle a machine at the current simulation time
self.candidateOperators=[]
# list of criteria
......@@ -86,7 +90,7 @@ class Router(ObjectInterruption):
self.invoked=False
self.criticalPending=[]
# self.criticalPending=[]
self.preemptiveOperators=[]
self.toBeSignalled=[]
......@@ -94,7 +98,9 @@ class Router(ObjectInterruption):
self.conflictingEntities=[]
self.conflictingStations=[]
self.occupiedReceivers=[]
self.entitiesWithOccupiedReceivers=[]
# self.entitiesWithOccupiedReceivers=[]
self.criticalQueues=[]
# =======================================================================
# the run method
......@@ -128,8 +134,9 @@ class Router(ObjectInterruption):
# find the pending objects
self.findPendingObjects()
# find the pending entities
self.findPendingEntities()
# # find the pending entities
# self.findPendingEntities()
# find the operators that can start working now
self.findCandidateOperators()
# # sort the pendingEntities list
......@@ -144,7 +151,7 @@ class Router(ObjectInterruption):
self.assignOperators()
for operator in [x for x in self.candidateOperators if x.isAssignedTo()]:
if not operator.isAssignedTo() in self.pendingObjects:
if not operator.isAssignedTo() in list(self.pendingMachines+self.pendingQueues):
for object in [x for x in operator.isAssignedTo().previous if x.exitIsAssignedTo()]:
if object.exitIsAssignedTo()!=operator.isAssignedTo():
object.unAssignExit()
......@@ -152,7 +159,7 @@ class Router(ObjectInterruption):
for object in self.pendingQueues:
if not object in self.toBeSignalled:
object.unAssignExit()
# signal the stations that ought to be signalled
# signal the stations that ought to be signaled
self.signalOperatedStations()
self.printTrace('', 'router exiting')
self.printTrace('','=-'*20)
......@@ -162,7 +169,6 @@ class Router(ObjectInterruption):
# assigning operators to machines
#===========================================================================
def assignOperators(self):
#------------------------------------------------------------------------------
# for all the operators that are requested
for operator in self.candidateOperators:
# check if the candidateOperators are available, if the are requested and reside in the pendingObjects list
......@@ -182,7 +188,7 @@ class Router(ObjectInterruption):
operator.assignTo(operator.candidateStation)
if not operator.candidateStation in self.toBeSignalled:
self.toBeSignalled.append(operator.candidateStation)
self.printTrace('objects to be signalled:'+' '*11, [str(object.id) for object in self.toBeSignalled])
self.printTrace('objects to be signaled:'+' '*11, [str(object.id) for object in self.toBeSignalled])
# =======================================================================
# return control to the Machine.run
......@@ -200,9 +206,9 @@ class Router(ObjectInterruption):
entity.candidateReceivers=[]
entity.candidateReceiver=None
del self.candidateOperators[:]
del self.criticalPending[:]
# del self.criticalPending[:]
del self.preemptiveOperators[:]
del self.pendingObjects[:]
# del self.pendingObjects[:]
del self.pendingMachines[:]
del self.pendingQueues[:]
del self.toBeSignalled[:]
......@@ -211,7 +217,8 @@ class Router(ObjectInterruption):
del self.conflictingStations[:]
del self.conflictingEntities[:]
del self.occupiedReceivers[:]
del self.entitiesWithOccupiedReceivers[:]
del self.criticalQueues[:]
# del self.entitiesWithOccupiedReceivers[:]
self.schedulingRule='WT'
self.invoked=False
......@@ -251,56 +258,61 @@ class Router(ObjectInterruption):
self.sendSignal(receiver=station, signal=station.loadOperatorAvailable)
self.printTrace('router', 'signalling'+' '*50+operator.isAssignedTo().id)
#===========================================================================
# clear the pending lists of the router
#===========================================================================
def clearPendingObjects(self):
self.pendingQueues=[]
self.pendingMachines=[]
self.pendingObjects=[]
#===========================================================================
# find the stations that can be signalled by the router
#===========================================================================
def findPendingObjects(self):
from Globals import G
self.clearPendingObjects()
self.pending=[] # list of entities that require operators now
# self.clearPendingObjects()
for entity in G.pendingEntities:
if entity.currentStation in G.MachineList:
if entity.currentStation.broker.waitForOperator:
self.pendingMachines.append(entity.currentStation)
self.pending.append(entity)
for machine in entity.currentStation.next:
if machine in G.MachineList:
if any(type=='Load' for type in machine.multOperationTypeList) and not entity.currentStation in self.pendingQueues:
self.pendingQueues.append(entity.currentStation)
self.pendingObjects.append(entity.currentStation)
self.pending.append(entity)
break
# self.pendingMachines=[machine for machine in G.MachineList if machine.broker.waitForOperator]
self.pendingObjects=self.pendingQueues+self.pendingMachines
self.printTrace('router found pending objects'+'-'*6+'>', [str(object.id) for object in self.pendingObjects])
self.findCriticalQueues()
self.printTrace('pendingMachines'+'-'*19+'>', [str(object.id) for object in self.pendingMachines])
self.printTrace('pendingQueues'+'-'*21+'>', [str(object.id) for object in self.pendingQueues])
self.printTrace('found pending entities'+'-'*12+'>', [str(entity.id) for entity in self.pending if not entity.type=='Part'])
# if self.criticalPending:
# self.printTrace('found pending critical'+'-'*12+'>', [str(entity.id) for entity in self.criticalPending if not entity.type=='Part'])
#===========================================================================
# finding the entities that require manager now
# find the pending queues that hold critical pending entities
#===========================================================================
def findPendingEntities(self):
from Globals import G
self.pending=[] # list of entities that are pending
for machine in self.pendingMachines:
self.pending.append(machine.currentEntity)
for entity in G.pendingEntities:
if entity.currentStation in G.QueueList or entity.currentStation in G.SourceList:
for machine in entity.currentStation.next:
if any(type=='Load' for type in machine.multOperationTypeList):
self.pending.append(entity)
# if the entity is critical add it to the criticalPending List
if entity.isCritical and not entity in self.criticalPending:
self.criticalPending.append(entity)
def findCriticalQueues(self):
for queue in self.pendingQueues:
for entity in queue.getActiveObjectQueue():
if entity in self.pending and entity.isCritical:
# self.criticalPending.append(entity)
self.criticalQueues.append(queue)
#===========================================================================
# find operators that can perform preemption for a critical pending entity
#===========================================================================
def findPreemptiveOperators(self):
# for every queue that holds critical pending entities
for queue in self.criticalQueues:
# if no receiver can be found
if not queue.findReceiversFor(queue):
for nextobject in queue.next:
for operator in nextobject.operatorPool.operators:
currentStation=operator.workingStation
if not currentStation.getActiveObjectQueue()[0].isCritical:
preemptiveOperator=operator
preemptiveOperator.candidateStations.append(nextobject)
if not preemptiveOperator in self.candidateOperators:
self.candidateOperators.append(preemptiveOperator)
self.preemptiveOperators.append(preemptiveOperator)
break
self.printTrace('found pending entities'+'-'*12+'>', [str(entity.id) for entity in self.pending if not entity.type=='Part'])
if self.criticalPending:
self.printTrace('found pending critical'+'-'*12+'>', [str(entity.id) for entity in self.criticalPending if not entity.type=='Part'])
#========================================================================
# Find candidate Operators
......@@ -311,50 +323,42 @@ class Router(ObjectInterruption):
# . the candidate receivers of the entities (the stations the operators will be working at)
#========================================================================
def findCandidateOperators(self):
# find stations that may be candidates
candidateMachines = [next for queue in self.pendingQueues for next in queue.findReceiversFor(queue)]
# for each pendingMachine
for object in self.pendingMachines:
# find candidateOperators for each object operator
candidateOperators=object.operatorPool.availableOperators()
# append the station into its candidateStations
for station in candidateMachines+self.pendingMachines:
# find candidateOperators for each object
candidateOperators=station.operatorPool.availableOperators()
if candidateOperators: # if there was an operator found append the Machine on his candidateStations
for candidateOperator in candidateOperators:
if not object in candidateOperator.candidateStations:
if not station in candidateOperator.candidateStations:
candidateOperator.candidateStations.append(object)
# if there is candidateOperator that is not already in self.candidateOperators add him
# TODO: this way no sorting is performed
if not candidateOperator in self.candidateOperators:
self.candidateOperators.append(candidateOperator)
# for each pendingQueue
for object in self.pendingQueues:
# find available operator for then machines that follow
for nextobject in object.findReceiversFor(object):
candidateOperators=nextobject.operatorPool.availableOperators()
# append the station into its candidateStations
if candidateOperators: # if there was an operator found append the Machine on his candidateStations
for candidateOperator in candidateOperators:
if not nextobject in candidateOperator.candidateStations:
candidateOperator.candidateStations.append(nextobject)
if not candidateOperator in self.candidateOperators:
self.candidateOperators.append(candidateOperator)
# check the option of preemption if there are critical entities and no available operators
if not object.findReceiversFor(object) and\
any(entity for entity in object.getActiveObjectQueue() if entity.isCritical):
# for each of the following objects
for nextObject in object.next:
# if an operator is occupied by a critical entity then that operator can preempt
# This way the first operator that is not currently on a critical entity is invoked
# TODO: consider picking an operator more wisely by sorting
for operator in nextObject.operatorPool.operators:
currentStation=operator.workingStation
if not currentStation.getActiveObjectQueue()[0].isCritical:
preemptiveOperator=operator
preemptiveOperator.candidateStations.append(nextObject)
if not preemptiveOperator in self.candidateOperators:
self.candidateOperators.append(preemptiveOperator)
self.preemptiveOperators.append(preemptiveOperator)
break
self.findPreemptiveOperators()
# # for each pendingQueue
# for object in self.pendingQueues:
# # check the option of preemption if there are critical entities and no available operators
# if not object.findReceiversFor(object) and\
# any(entity for entity in object.getActiveObjectQueue() if entity.isCritical and entity in self.pending):
# # for each of the following objects
# for nextObject in object.next:
# # if an operator is occupied by a critical entity then that operator can preempt
# # This way the first operator that is not currently on a critical entity is invoked
# # TODO: consider picking an operator more wisely by sorting
# for operator in nextObject.operatorPool.operators:
# currentStation=operator.workingStation
# if not currentStation.getActiveObjectQueue()[0].isCritical:
# preemptiveOperator=operator
# preemptiveOperator.candidateStations.append(nextObject)
# if not preemptiveOperator in self.candidateOperators:
# self.candidateOperators.append(preemptiveOperator)
# self.preemptiveOperators.append(preemptiveOperator)
# break
# # update the schedulingRule/multipleCriterionList of the Router
# if self.sorting:
......@@ -366,14 +370,6 @@ class Router(ObjectInterruption):
else:
self.printTrace('router', 'found NO candidate operators')
# #===========================================================================
# # find the candidate entities for each candidateOperator
# #===========================================================================
# def findCandidateEntities(self):
# for operator in self.candidateOperators:
# # find which pendingEntities that can move to machines is the operator managing
# operator.findCandidateEntities(self.pending)
# #=======================================================================
# # find the schedulingRules of the candidateOperators
# #=======================================================================
......@@ -404,19 +400,10 @@ class Router(ObjectInterruption):
# TODO: sort according to the number of pending Jobs
# TODO Have to sort again according to the priority used by the operators
# initialise the operatorsWithOneOption and operatorsWithOneCandidateEntity lists
operatorsWithOneOption=[]
# for all the candidateOperators
for operator in self.candidateOperators:
# sort the candidate operators so that those who have only one option be served first
# if the candidate entity has only one receiver then append the operator to operatorsWithOneOption list
if operator.hasOneOption():
operatorsWithOneOption.append(operator)
# TODO: the operator here actually chooses entity. This may pose a problem as two entities may be equivalent
# and as the operators chooses the sorting of the queue (if they do reside in the same queue is not taken into account)
# sort the candidateEntities list of each operator according to its schedulingRule
for operator in [x for x in self.candidateOperators if x.candidateEntities]:
for operator in [x for x in self.candidateOperators if x.candidateStations]:
operator.sortCandidateEntities()
# if there operators that have only one option then sort the candidateOperators according to the first one of these
......@@ -425,6 +412,16 @@ class Router(ObjectInterruption):
# self.sortOperators()
if self.sorting:
# initialise the operatorsWithOneOption and operatorsWithOneCandidateEntity lists
operatorsWithOneOption=[]
# for all the candidateOperators
for operator in self.candidateOperators:
# sort the candidate operators so that those who have only one option be served first
# if the candidate entity has only one receiver then append the operator to operatorsWithOneOption list
if operator.hasOneOption():
operatorsWithOneOption.append(operator)
# sort the operators according to their waiting time
self.candidateOperators.sort(key=lambda x: x.totalWorkingTime)
# sort according to the number of options
......
dream/simulation/OperatorRouterManaged.py
View file @ fc9b82db
......@@ -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:
......
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