class Simulation(object):
def __init__(self, sim_param=SimParam(), no_seed=False):
"""
Initialize the Simulation object.
:param sim_param: is an optional SimParam object for parameter pre-configuration
:param no_seed: is an optional parameter. If it is set to True, the RNG should be initialized without a
a specific seed.
"""
self.sim_param = sim_param
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
self.counter_collection = CounterCollection(self)
if no_seed:
self.rng = RNG(ExponentialRNS(1),
ExponentialRNS(1. / float(self.sim_param.RHO)))
else:
self.rng = RNG(
ExponentialRNS(1, self.sim_param.SEED_IAT),
ExponentialRNS(1. / float(self.sim_param.RHO),
self.sim_param.SEED_ST))
self.number_served_packets = 0
def reset(self, no_seed=False):
"""
Reset the Simulation object.
:param no_seed: is an optional parameter. If it is set to True, the RNG should be reset without a
a specific seed.
"""
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
self.counter_collection = CounterCollection(self)
if no_seed:
self.rng = RNG(ExponentialRNS(1),
ExponentialRNS(1. / float(self.sim_param.RHO)))
else:
self.rng = RNG(
ExponentialRNS(1, self.sim_param.SEED_IAT),
ExponentialRNS(1. / float(self.sim_param.RHO),
self.sim_param.SEED_ST))
def do_simulation(self):
"""
Do one simulation run. Initialize simulation and create first and last event.
After that, one after another event is processed.
:return: SimResult object
"""
# insert first and last event
self.event_chain.insert(CustomerArrival(self, 0))
self.event_chain.insert(
SimulationTermination(self, self.sim_param.SIM_TIME))
# start simulation (run)
while not self.sim_state.stop:
# get next simevent from events
e = self.event_chain.remove_oldest_event()
if e:
# if event exists and timestamps are ok, process the event
if self.sim_state.now <= e.timestamp:
self.sim_state.now = e.timestamp
self.counter_collection.count_queue()
e.process()
else:
print "NOW: " + str(
self.sim_state.now) + ", EVENT TIMESTAMP: " + str(
e.timestamp)
raise RuntimeError(
"ERROR: TIMESTAMP OF EVENT IS SMALLER THAN CURRENT TIME."
)
else:
print "Event chain is empty. Abort"
self.sim_state.stop = True
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result
def do_simulation_n_limit(self, n):
"""
Call this function, if the simulation should stop after a given number of packets
Do one simulation run. Initialize simulation and create first event.
After that, one after another event is processed.
:param n: number of customers, that are processed before the simulation stops
:return: SimResult object
"""
# insert first event
self.event_chain.insert(CustomerArrival(self, 0))
# start simulation (run)
while (not self.sim_state.stop) and (self.number_served_packets <= n):
# TODO Task 4.3.2: Your code goes here
# TODO Task 5.2.2: Your code goes here
# get next simevent from events
e = self.event_chain.remove_oldest_event()
if e:
# if event exists and timestamps are ok, process the event
if self.sim_state.now <= e.timestamp:
self.sim_state.now = e.timestamp
self.counter_collection.count_queue()
e.process()
else:
print "NOW: " + str(
self.sim_state.now) + ", EVENT TIMESTAMP: " + str(
e.timestamp)
raise RuntimeError(
"ERROR: TIMESTAMP OF EVENT IS SMALLER THAN CURRENT TIME."
)
else:
print "Event chain is empty. Abort"
self.sim_state.stop = True
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result
class Simulation(object):
def __init__(self, sim_param=SimParam(), no_seed=False):
"""
Initialize the Simulation object.
:param sim_param: is an optional SimParam object for parameter pre-configuration
:param no_seed: is an optional parameter. If it is set to True, the RNG should be initialized without a
a specific seed.
"""
self.sim_param = sim_param
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
# TODO Task 2.4.3: Uncomment the line below
self.counter_collection = CounterCollection(self)
# TODO Task 3.1.2: Uncomment the line below and replace the "None"
if no_seed:
#if the mean = 1.0, then 1/lambda_ = 1.0 -> lambda_ = 1
self.rng = RNG(ExponentialRNS(1.0),
ExponentialRNS(1. / float(self.sim_param.RHO)))
else:
self.rng = RNG(
ExponentialRNS(1.0, self.sim_param.SEED_IAT),
ExponentialRNS(1. / float(self.sim_param.RHO),
self.sim_param.SEED_ST))
def reset(self, no_seed=False):
"""
Reset the Simulation object.
:param no_seed: is an optional parameter. If it is set to True, the RNG should be reset without a
a specific seed.
"""
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
# TODO Task 2.4.3: Uncomment the line below
self.counter_collection = CounterCollection(self)
# TODO Task 3.1.2: Uncomment the line below and replace the "None"
self.rng.iat_rns.set_parameters(1.)
self.rng.st_rns.set_parameters(1. / float(self.sim_param.RHO))
def do_simulation(self):
"""
Do one simulation run. Initialize simulation and create first and last event.
After that, one after another event is processed.
:return: SimResult object
"""
# insert first and last event
self.event_chain.insert(CustomerArrival(self, 0))
self.event_chain.insert(
SimulationTermination(self, self.sim_param.SIM_TIME))
# start simulation (run)
while not self.sim_state.stop:
# TODO Task 1.4.1: Your code goes here
"""
Hint:
You can use and adapt the following lines in your realization
e = self.event_chain.remove_oldest_event()
e.process()
"""
e = self.event_chain.remove_oldest_event()
if e:
if self.sim_state.now <= e.timestamp:
self.sim_state.now = e.timestamp
self.counter_collection.count_queue()
e.process()
else:
self.sim_state.stop = True
#pass
# TODO Task 2.4.3: Your code goes here somewhere
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result
def do_simulation_n_limit(self, n, first_batch):
"""
Call this function, if the simulation should stop after a given number of packets
Do one simulation run. Initialize simulation and create first event.
After that, one after another event is processed.
:param n: number of customers, that are processed before the simulation stops
:return: SimResult object
"""
# insert first event
if not first_batch: # if this is a first batch
self.event_chain.insert(CustomerArrival(self, 0))
# start simulation (run)
while not self.sim_state.stop:
# TODO Task 4.3.2: Your code goes here
# TODO Task 5.2.2: Your code goes here
e = self.event_chain.remove_oldest_event()
if e:
if self.sim_state.now <= e.timestamp:
self.sim_state.now = e.timestamp
self.counter_collection.count_queue()
e.process()
if (self.sim_state.num_packets) >= n:
self.sim_state.stop = True
else:
self.sim_state.stop = True
#pass
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result
class Simulation(object):
def __init__(self, sim_param=SimParam(), no_seed=False):
"""
Initialize the Simulation object.
:param sim_param: is an optional SimParam object for parameter pre-configuration
:param no_seed: is an optional parameter. If it is set to True, the RNG should be initialized without a
a specific seed.
"""
self.sim_param = sim_param
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
# TODO Task 2.4.3: Uncomment the line below
self.counter_collection = CounterCollection(self)
# TODO Task 3.1.2: Uncomment the line below and replace the "None"
"""
if no_seed:
self.rng = RNG(None, None)
else:
self.rng = RNG(None, None)
"""
def reset(self, no_seed=False):
"""
Reset the Simulation object.
:param no_seed: is an optional parameter. If it is set to True, the RNG should be reset without a
a specific seed.
"""
self.sim_state = SimState()
self.system_state = SystemState(self)
self.event_chain = EventChain()
self.sim_result = SimResult(self)
# TODO Task 2.4.3: Uncomment the line below
self.counter_collection = CounterCollection(self)
# TODO Task 3.1.2: Uncomment the line below and replace the "None"
"""
if no_seed:
self.rng = RNG(None, None)
else:
self.rng = RNG(None, None)
"""
def do_simulation(self):
"""
Do one simulation run. Initialize simulation and create first and last event.
After that, one after another event is processed.
:return: SimResult object
"""
# insert first and last event
self.event_chain.insert(CustomerArrival(self, 0))
self.event_chain.insert(
SimulationTermination(self, self.sim_param.SIM_TIME))
# start simulation (run)
while not self.sim_state.stop:
# TODO Task 1.4.1: Your code goes here
"""
Hint:
You can use and adapt the following lines in your realization
e = self.event_chain.remove_oldest_event()
e.process()
"""
e = self.event_chain.remove_oldest_event()
if e:
# if event exists and timestamps are ok, process the event
if self.sim_state.now <= e.timestamp:
self.sim_state.now = e.timestamp
e.process()
else:
print "NOW: " + str(
self.sim_state.now) + ", EVENT TIMESTAMP: " + str(
e.timestamp)
raise RuntimeError(
"ERROR: TIMESTAMP OF EVENT IS SMALLER THAN CURRENT TIME."
)
else:
print "Event chain is empty. Abort"
self.sim_state.stop = True
# TODO Task 2.4.3: Your code goes here somewhere
self.counter_collection.count_queue()
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result
def do_simulation_n_limit(self, n):
"""
Call this function, if the simulation should stop after a given number of packets
Do one simulation run. Initialize simulation and create first event.
After that, one after another event is processed.
:param n: number of customers, that are processed before the simulation stops
:return: SimResult object
"""
# insert first event
self.event_chain.insert(CustomerArrival(self, 0))
# start simulation (run)
while not self.sim_state.stop:
# TODO Task 4.3.2: Your code goes here
# TODO Task 5.2.2: Your code goes here
pass
# gather results for sim_result object
self.sim_result.gather_results()
return self.sim_result