Пример #1
0
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
Пример #2
0
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()
        # 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()
        # 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()
            """
            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):
        """
        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
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
Пример #4
0
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"
        rns1 = ExponentialRNS(1.0)
        rns2 = ExponentialRNS(1.0 / self.sim_param.RHO)
        rns1_seed = ExponentialRNS(1.0, self.sim_param.SEED_IAT)
        rns2_seed = ExponentialRNS(1.0 / self.sim_param.RHO,
                                   self.sim_param.SEED_ST)
        if no_seed:
            self.rng = RNG(rns1, rns2)
        else:
            self.rng = RNG(rns1_seed, rns2_seed)

    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"
        rns1 = ExponentialRNS(1.0)
        rns2 = ExponentialRNS(1.0 / self.sim_param.RHO)
        rns1_seed = ExponentialRNS(1.0, self.sim_param.SEED_IAT)
        rns2_seed = ExponentialRNS(1.0 / self.sim_param.RHO,
                                   self.sim_param.SEED_ST)
        if no_seed:
            self.rng = RNG(rns1, rns2)
        else:
            self.rng = RNG(rns1_seed, rns2_seed)

    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
                    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
            # 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