Package jline.examples.java.advanced

Class FCRegionModel

java.lang.Object
jline.examples.java.advanced.FCRegionModel
public class FCRegionModel extends Object
Examples of models with Finite Capacity Regions (FCR). FCRs allow defining capacity constraints across multiple nodes, with either blocking (wait) or dropping behavior when full.

  • Constructor Details

    • FCRegionModel

      public FCRegionModel()

  • Method Details

    • fcr_oqnwaitq

      public static Network fcr_oqnwaitq()
      Multiclass open network with FCR blocking.

      Features: - Two open classes with different arrival/service rates - Two queues covered by a single FCR - Global max: 8 jobs, Class1 max: 5, Class2 max: 4 - Blocking behavior: jobs wait when region is full

      Returns:
      configured FCR blocking model

    • fcr_oqndrop

      public static Network fcr_oqndrop()
      Multiclass open network with FCR dropping.

      Features: - Two open classes with different arrival/service rates - Two queues covered by a single FCR - Global max: 8 jobs, Class1 max: 5, Class2 max: 4 - Dropping behavior: jobs are lost when region is full

      Returns:
      configured FCR dropping model

    • fcr_mm1waitq

      public static Network fcr_mm1waitq()
      Simple M/M/1 with FCR blocking.

      This model demonstrates that FCR with blocking around a single queue behaves identically to a standard M/M/1 queue.

      Returns:
      configured M/M/1 with FCR blocking

    • mm1

      public static Network mm1()
      Simple M/M/1 without FCR (for comparison).
      Returns:
      standard M/M/1 model

    • fcr_mm1kdrop

      public static Network fcr_mm1kdrop()
      M/M/1/K with FCR dropping (K=2).

      This model demonstrates that FCR with dropping around a single queue behaves like an M/M/1/K queue where K is the FCR capacity.

      Returns:
      configured M/M/1/K with FCR dropping

    • mm1k

      public static Network mm1k()
      M/M/1/K using queue capacity (K=2, for comparison).
      Returns:
      standard M/M/1/K model

    • fcr_constraints

      public static Network fcr_constraints()
      FCR with multiple constraint types demonstration.

      Features: - Global max jobs: limits total jobs across all classes - Per-class max jobs: limits jobs of a specific class - Different drop rules per class: blocking vs dropping

      Returns:
      configured FCR model with multiple constraint types

    • fcr_lossn

      public static Network fcr_lossn()
      Loss network with FCR (for NC solver lossn method).

      This model demonstrates the NC solver's ability to analyze open loss networks using the Erlang fixed-point approximation. Features: - Single Delay node (infinite server) inside an FCR - Multiple classes with different arrival/service rates - DROP policy: jobs are lost when region is full

      The NC solver can analytically solve this using the lossn method.

      Returns:
      configured loss network model

    • fcr_lincon

      public static Network fcr_lincon(double[][] A, double[] b)
      Open loss network with general linear admission constraints.

      Features: - Single Delay node inside an FCR with DROP policy - Linear constraints An <= b control admission - High per-class/global limits so only linear constraints are active

      Parameters:
      A - constraint matrix (C x K)
      b - capacity vector (C x 1)
      Returns:
      configured loss network model