RootDEVS

class pypdevs.DEVS.RootDEVS(components, models, scheduler_type)

The artificial RootDEVS model is the only ‘coupled’ model in the simulation after direct connection is performed.

__init__(components, models, scheduler_type)

Basic constructor.

Parameters

• components – the atomic DEVS models that are the cildren, only those that are ran locally should be mentioned

• models – all models that have to be passed to the scheduler, thus all models, even non-local ones

• scheduler_type – type of scheduler to use (string representation)

directConnect()

Perform direct connection on the models again

fetchActivity(time, activities)

Fetch the activity of the model up to a certain time

Parameters

• time – the time up to which the activity should be calculated

• activities – dictionary containing all activities for the models

redoDirectConnection(ports)

Redo direct connection for a specified port, and all ports connected to it.

Parameters

ports – the ports that have changed.

revert(time, memorize)

Revert the coupled model to the specified time, all submodels will also be reverted.

Parameters

• time – the time up to which revertion should happen

• memorize – whether or not the saved states should still be kept for memoization

setGVT(gvt, activities, last_state_only)

Sets the GVT of this coupled model

Parameters

• gvt – the time to which the GVT should be set

• activities – dictionary containing all activities for the models

• last_state_only – whether or not to use the last state for activity

setScheduler(scheduler_type)

Set the scheduler to the desired type. Will overwite the previously present scheduler.

Parameters

scheduler_type – type of scheduler to use (string representation)

setTimeNext()

Reset the timeNext