Package NetStrategies

package NetStrategies

Strategy interfaces and base classes used by the JSIM simulation engine to implement the behaviour of the network elements. Strategies are pluggable implementations of scheduling, routing, queueing, service and related policies, in line with the extended features of the JSIM engine described in the JMT user manual (finite capacity regions, fork-join, class switching, priorities and place-transition structures).

Related Packages

Package	Description
NetStrategies.CacheStrategies	Cache eviction strategies used by cache-equipped stations to decide which cached item is removed when the cache is full.
NetStrategies.ForkStrategies	Strategies used by fork stations to split a job into the output tasks that are then routed to the downstream stations.
NetStrategies.ImpatienceStrategies	Impatience strategies that model customers leaving a queue before being served, either by balking (refusing to join the queue) or reneging (abandoning the queue after joining).
NetStrategies.JoinStrategies	Strategies used by join stations to synchronize the tasks of a forked job and release the job when its tasks have been recombined.
NetStrategies.PSStrategies	Processor sharing service strategies, in which every job present at the station is served simultaneously and the station capacity is shared among the jobs.
NetStrategies.QueueGetStrategies	Queue visit strategies that select which job leaves the queue to enter service, implementing scheduling disciplines such as FCFS, LCFS, SJF, LJF and SEPT.
NetStrategies.QueuePutStrategies	Queue insertion strategies that select the position in the queue where an arriving job is placed, implementing queueing disciplines such as FCFS and priority-based placement.
NetStrategies.RoutingStrategies	Routing strategies used by router nodes to select the destination station of each departing job.
NetStrategies.SemaphoreStrategies	Semaphore strategies controlling the release of permits in the place-transition (synchronization) structures of a JSIM model.
NetStrategies.ServiceStrategies	Service time strategies determining the service time of jobs at a station, including load independent and load dependent service distributions.
NetStrategies.TransitionUtilities	Utility classes for the transitions of the place-transition structures supported by the JSIM simulation engine.
NetStrategies.VacationStrategies	Vacation strategies modelling servers that suspend their service for a vacation period, as supported by the extended JSIM simulation engine.

Class	Description
CacheStrategy	Base class of the cache eviction strategies of the JSIM engine: it decides which cached item is removed when the cache is full.
ForkStrategy	Base class of the JSIM fork strategies, which split a job into the tasks routed to the output stations of a fork.
JoinStrategy	Base class of the JSIM join strategies, which synchronize the tasks of a forked job at a join station.
PSStrategy	Use this class to implement a specific PS strategy.
QueueGetStrategy	Use this class to implement a specific queue get strategy.
QueuePutStrategy	Use this class to implement a specific queue put strategy.
RoutingStrategy	Use this class to implement a specific routing strategy.
SemaphoreStrategy
ServiceStrategy	Use this class to implement a specific service strategy.
VacationStrategy	Base class of the JSIM vacation strategies, which model servers that suspend their service for a vacation period.