Package jline.api.fes

Class Fes_map_aggregate

java.lang.Object

jline.api.fes.Fes_map_aggregate

public final class Fes_map_aggregate
extends Object

Aggregates a subnetwork into a load-dependent MAP flow-equivalent server that reproduces mean, variability and burstiness of its output. Implements the recursion of Section 5.2.1 of Casale, Mi, Cherkasova and Smirni, IEEE Trans. Soft. Eng. 37(5), 2011. The first station seeds the flow-equivalent server; every further station is folded against the running server by building the inter-departure MAP of the resulting pair at each population level and fitting a MAP(2) to its first three moments and index of dispersion. Unlike the classic flow-equivalent server, which keeps only the mean throughput, this one also carries the burstiness of the departure stream, so a bottleneck switch across the aggregated resources stays visible to the rest of the model. Levels are evaluated on a grid and the four descriptors are interpolated between grid points. The MAP is refitted at every level from the interpolated descriptors, never interpolated entrywise. Copyright (c) 2012-2026, Imperial College London All rights reserved.

Method Summary

Modifier and Type	Method	Description
static FesMapAggregateResult	fes_map_aggregate(List<MatrixCell> maps, double[] servers, int n)	Aggregates a subnetwork on the default population grid.
static FesMapAggregateResult	fes_map_aggregate(List<MatrixCell> maps, double[] servers, int n, int[] grid, String method)	Aggregates a subnetwork.

Methods inherited from class java.lang.Object

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

Method Details

fes_map_aggregate

public static FesMapAggregateResult fes_map_aggregate(List<MatrixCell> maps,
 double[] servers,
 int n)

Aggregates a subnetwork on the default population grid.

Parameters:

maps - service process of each station, already scaled by its visit ratio

servers - number of servers of each station, infinite for a delay

n - largest population the flow-equivalent server must serve

Returns:

the load-dependent MAP and the descriptors it was fitted from

fes_map_aggregate

public static FesMapAggregateResult fes_map_aggregate(List<MatrixCell> maps,
 double[] servers,
 int n,
 int[] grid,
 String method)

Aggregates a subnetwork.

Parameters:

maps - service process of each station, already scaled by its visit ratio

servers - number of servers of each station, infinite for a delay

n - largest population the flow-equivalent server must serve

grid - populations at which the inter-departure MAP is evaluated

method - moment evaluation method, "ssolve" or "euler"

Returns:

the load-dependent MAP and the descriptors it was fitted from