How to use the simgrid.this_actor.execute function in simgrid

def victim_a_fun():
    this_actor.on_exit(lambda: this_actor.info("I have been killed!"))
    this_actor.info("Hello!")
    this_actor.info("Suspending myself")
    this_actor.suspend()                        # - Start by suspending itself
    # - Then is resumed and start to execute a task
    this_actor.info("OK, OK. Let's work")
    this_actor.execute(1e9)
    # - But will never reach the end of it
    this_actor.info("Bye!")

def worker():
    """The worker process, working for a while before leaving"""
    this_actor.info("Let's do some work (for 10 sec on Boivin).")
    this_actor.execute(980.95e6)

    this_actor.info("I'm done now. I leave even if it makes the daemon die.")

def executor():
    # execute() tells SimGrid to pause the calling actor until
    # its host has computed the amount of flops passed as a parameter
    this_actor.execute(98095)
    this_actor.info("Done.")
    # This simple example does not do anything beyond that

"""The Lazy guy only wants to sleep, but can be awaken by the dream_master process"""
    this_actor.info("Nobody's watching me ? Let's go to sleep.")
    this_actor.suspend()  # - Start by suspending itself
    this_actor.info("Uuuh ? Did somebody call me ?")

    # - Then repetitively go to sleep, but get awaken
    this_actor.info("Going to sleep...")
    this_actor.sleep_for(10)
    this_actor.info("Mmm... waking up.")

    this_actor.info("Going to sleep one more time (for 10 sec)...")
    this_actor.sleep_for(10)
    this_actor.info("Waking up once for all!")

    this_actor.info("Ok, let's do some work, then (for 10 sec on Boivin).")
    this_actor.execute(980.95e6)

    this_actor.info("Mmmh, I'm done now. Goodbye.")

def __call__(self):
        workload = 100E6
        host = this_actor.get_host()

        nb = host.get_pstate_count()
        this_actor.info("Count of Processor states={:d}".format(nb))

        this_actor.info("Current power peak={:f}".format(host.speed))

        # Run a task
        this_actor.execute(workload)

        task_time = Engine.get_clock()
        this_actor.info("Task1 duration: {:.2f}".format(task_time))

        # Change power peak
        new_pstate = 2

        this_actor.info("Changing power peak value to {:f} (at index {:d})".format( host.get_pstate_speed(new_pstate), new_pstate))

        host.pstate = new_pstate

        this_actor.info("Current power peak={:f}".format(host.speed))

        # Run a second task
        this_actor.execute(workload)

this_actor.execute(workload)

        task_time = Engine.get_clock()
        this_actor.info("Task1 duration: {:.2f}".format(task_time))

        # Change power peak
        new_pstate = 2

        this_actor.info("Changing power peak value to {:f} (at index {:d})".format( host.get_pstate_speed(new_pstate), new_pstate))

        host.pstate = new_pstate

        this_actor.info("Current power peak={:f}".format(host.speed))

        # Run a second task
        this_actor.execute(workload)

        task_time = Engine.get_clock() - task_time
        this_actor.info("Task2 duration: {:.2f}".format(task_time))

        # Verify that the default pstate is set to 0
        host2 = Host.by_name("MyHost2")
        this_actor.info("Count of Processor states={:d}".format(host2.get_pstate_count()))

        this_actor.info("Current power peak={:f}".format(host2.speed))

def privileged():
    # You can also specify the priority of your execution as follows.
    # An execution of priority 2 computes twice as fast as a regular one.
    #
    # So instead of a half/half sharing between the two executions,
    # we get a 1/3 vs 2/3 sharing.
    this_actor.execute(98095, priority=2)
    this_actor.info("Done.")