Package jline.solvers

Class SolverResult

java.lang.Object
jline.solvers.SolverResult
Direct Known Subclasses:
AGResult, CTMCResult, FluidResult, JMTResult, LayeredSolverResult, LDESResult, LNLDESResult, MAMResult, MVAResult, NCResult, ResultCTMC, ResultCTMCMargAggr, SSAResult
public class SolverResult extends Object
Container for storing performance metrics computed by queueing network solvers.

This class holds both steady-state and transient performance results including queue lengths, utilizations, response times, throughputs, and arrival rates. Results are organized as matrices with dimensions [stations x classes] for station-level metrics and [1 x classes] for system-level metrics.

For solver-specific results, create separate classes (e.g., SolverFluidResult).

See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    Matrix
    AN
    Mean arrival rates [stations x classes]
    Matrix
    ANfcr
    FCR mean arrival rates (attempted entries) [regions x classes]
    List<CacheResultRecord>
    cacheResults
    Per-cache-node average results, one record per Cache in the model that produced them, or null when the solve reached no cache.
    Matrix
    CN
    Mean system response times [1 x chains]
    Matrix[][]
    CNt
    Transient system response times [time_points][1 x chains]
    Matrix
    DropRateJoin
    Fork-Join sibling-drop rate [stations x classes]: at a quorum/PARTIAL Join, the rate of forked siblings discarded because they arrive after the quorum already fired.
    Matrix
    DropRateNfcr
    FCR mean drop rate: the rate of jobs refused entry to the region and dropped (DROP rule), per [regions x classes].
    int
    iter
    Number of iterations performed by iterative solvers
    Matrix
    MemOccNfcr
    FCR mean memory occupation (time-average of sum of per-class classSize times in-region job count), the JMT "FCR Memory Occupation" measure [regions x classes].
    String
    method
    The solution method used to compute these results
    Matrix
    pi_t
    Transient probability distributions over time
    Matrix
    QN
    Mean queue lengths [stations x classes]
    Matrix
    QNfcr
    FCR mean queue lengths (jobs waiting at ingress) [regions x classes]
    Matrix[][]
    QNt
     
    Matrix
    RN
    Mean response times [stations x classes]
    Matrix
    RNfcr
    FCR mean response times (wait time at ingress) [regions x classes]
    Matrix[][]
    RNt
    Transient response times [time_points][stations x classes]
    Map<String,Object>
    runLengthPlan
    `options.config.runLengthPlan`: the run length the caller would need for the precision they asked for, as computed by SimRunlength.sim_runlength_plan(jline.util.matrix.Matrix, jline.util.matrix.Matrix, double, double, double).
    double
    runtime
    Computation time in seconds
    String
    solver
    The name of the solver that computed these results
    Matrix
    SS
    Steady-state probability distribution
    Matrix
    SysTardN
    Mean system tardiness [1 x classes]
    Matrix
    t
    Time points for transient analysis
    Matrix
    TardN
    Mean tardiness [stations x classes]
    boolean
    timedOut
    True if the solver stopped early because the wall-clock time budget (SolverOptions.timeout) was exceeded.
    Matrix
    TN
    Mean throughputs [stations x classes]
    Matrix
    TNfcr
    FCR mean throughputs (entry rate) [regions x classes]
    Matrix[][]
    TNt
    Transient throughputs [time_points][stations x classes]
    Matrix
    UN
    Mean server utilizations [stations x classes]
    Matrix
    UNfcr
    FCR mean utilizations (capacity utilization) [regions x classes]
    Matrix[][]
    UNt
    Transient utilizations [time_points][stations x classes]
    Matrix
    WeightNfcr
    FCR mean total weight (time-average of sum of per-class classWeight times in-region job count), the JMT "FCR Total Weight" measure [regions x classes].
    Matrix
    WN
    Mean residence times [stations x classes]
    Matrix
    WNfcr
    FCR mean residence times [regions x classes]
    Matrix
    XN
    Mean system throughputs [1 x chains]
    Matrix[][]
    XNt
    Transient system throughputs [time_points][1 x chains]

  • Constructor Summary

    Constructors
    Constructor
    Description
    SolverResult()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    SolverResult
    deepCopy()
    Creates a deep copy of this SolverResult instance.
    void
    reset()
    Resets all stored results to null and runtime to zero.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • method

      public String method
      The solution method used to compute these results

    • solver

      public String solver
      The name of the solver that computed these results

    • iter

      public int iter
      Number of iterations performed by iterative solvers

    • QN

      public Matrix QN
      Mean queue lengths [stations x classes]

    • UN

      public Matrix UN
      Mean server utilizations [stations x classes]

    • RN

      public Matrix RN
      Mean response times [stations x classes]

    • TN

      public Matrix TN
      Mean throughputs [stations x classes]

    • AN

      public Matrix AN
      Mean arrival rates [stations x classes]

    • WN

      public Matrix WN
      Mean residence times [stations x classes]

    • TardN

      public Matrix TardN
      Mean tardiness [stations x classes]

    • SysTardN

      public Matrix SysTardN
      Mean system tardiness [1 x classes]

    • CN

      public Matrix CN
      Mean system response times [1 x chains]

    • XN

      public Matrix XN
      Mean system throughputs [1 x chains]

    • QNfcr

      public Matrix QNfcr
      FCR mean queue lengths (jobs waiting at ingress) [regions x classes]

    • UNfcr

      public Matrix UNfcr
      FCR mean utilizations (capacity utilization) [regions x classes]

    • RNfcr

      public Matrix RNfcr
      FCR mean response times (wait time at ingress) [regions x classes]

    • TNfcr

      public Matrix TNfcr
      FCR mean throughputs (entry rate) [regions x classes]

    • ANfcr

      public Matrix ANfcr
      FCR mean arrival rates (attempted entries) [regions x classes]

    • WNfcr

      public Matrix WNfcr
      FCR mean residence times [regions x classes]

    • WeightNfcr

      public Matrix WeightNfcr
      FCR mean total weight (time-average of sum of per-class classWeight times in-region job count), the JMT "FCR Total Weight" measure [regions x classes]. Row sum over classes gives the region-aggregate weight.

    • MemOccNfcr

      public Matrix MemOccNfcr
      FCR mean memory occupation (time-average of sum of per-class classSize times in-region job count), the JMT "FCR Memory Occupation" measure [regions x classes]. Row sum over classes gives the region-aggregate memory.

    • DropRateNfcr

      public Matrix DropRateNfcr
      FCR mean drop rate: the rate of jobs refused entry to the region and dropped (DROP rule), per [regions x classes]. Zero for BLOCK regions. The region loss ratio is DropRateNfcr / (TNfcr + DropRateNfcr).

    • DropRateJoin

      public Matrix DropRateJoin
      Fork-Join sibling-drop rate [stations x classes]: at a quorum/PARTIAL Join, the rate of forked siblings discarded because they arrive after the quorum already fired. Non-zero only at Join station rows; null when the model has no Join or no quorum. Folded into getAvgLossTable as the Join-row LossRate (the station identity ArvR - Tput does not apply at a synchronizing node).

    • runLengthPlan

      public Map<String,Object> runLengthPlan
      `options.config.runLengthPlan`: the run length the caller would need for the precision they asked for, as computed by SimRunlength.sim_runlength_plan(jline.util.matrix.Matrix, jline.util.matrix.Matrix, double, double, double). Null unless the option was set and the solver produced confidence intervals.

    • QNt

      public Matrix[][] QNt

    • RNt

      public Matrix[][] RNt
      Transient response times [time_points][stations x classes]

    • UNt

      public Matrix[][] UNt
      Transient utilizations [time_points][stations x classes]

    • TNt

      public Matrix[][] TNt
      Transient throughputs [time_points][stations x classes]

    • XNt

      public Matrix[][] XNt
      Transient system throughputs [time_points][1 x chains]

    • CNt

      public Matrix[][] CNt
      Transient system response times [time_points][1 x chains]

    • t

      public Matrix t
      Time points for transient analysis

    • pi_t

      public Matrix pi_t
      Transient probability distributions over time

    • SS

      public Matrix SS
      Steady-state probability distribution

    • runtime

      public double runtime
      Computation time in seconds

    • timedOut

      public boolean timedOut
      True if the solver stopped early because the wall-clock time budget (SolverOptions.timeout) was exceeded. When true, the stored metrics are an interim solution (if any iteration completed) or empty (all null).

    • cacheResults

      public List<CacheResultRecord> cacheResults
      Per-cache-node average results, one record per Cache in the model that produced them, or null when the solve reached no cache.

      A Cache carries its result on the NODE rather than in Q/U/R/T, so a solver that delegates to another model has no way to hand the surface back through the matrices above. This list is that hand-back; see CacheResultRecord and NetworkSolver.applyCacheResults(java.util.List).

  • Constructor Details

    • SolverResult

      public SolverResult()

  • Method Details

    • deepCopy

      public SolverResult deepCopy()
      Creates a deep copy of this SolverResult instance. All matrix fields are cloned to ensure independence.
      Returns:
      a deep copy of this result object

    • reset

      public void reset()
      Resets all stored results to null and runtime to zero.