be.ac.ucl.poms.repository.IGPWO
Class IGPWO

java.lang.Object
  be.ac.ucl.poms.repository.IGPWO.IGPWO

All Implemented Interfaces:

IGPWeightOptimization, DomainSyncAlgorithm, TotemAlgorithm

public class IGPWO
extends java.lang.Object
implements IGPWeightOptimization, DomainSyncAlgorithm

This class implements the integration of IGPWO (UCL/IAG/POMS). IGPWO is the optimizer for IGP link weights.

Creation date: 10-Dec-2004

Author:

Selin Cerav-Erbas (cerav@poms.ucl.ac.be), Hakan Umit (umit@poms.ucl.ac.be)

Constructor Summary

IGPWO()

Method Summary

TotemActionList	calculateWeights(int ASID, int[] TMID)
TotemActionList	calculateWeightsParameters(int ASID, int[] TMID, int num_iters, int w_max)
TotemActionList	calculateWeightsParameters(int ASID, int[] TMID, int num_iters, int w_max, boolean random, int seed, double min_samp_rate, double max_samp_rate, double init_samp_rate)
java.util.HashMap	getRunningParameters() Returns the parameters given when the algorithm was started
java.util.List<ParameterDescriptor>	getStartAlgoParameters() Returns the optional parameters that can be given when starting the algorithm
void	invalidateDB() Tells the algo that the database is not up-to-date
boolean	isDBValid() return true if the local DB is up-to-date
static void	jniaddArc(int index, int new_id, int new_headnode, int new_tailnode, double new_capacity)
static void	jniaddCommodity(int matrix_index, int new_dstnode, int new_srcnode, double demandValue)
static void	jniaddNode(int index, int new_id)
static double[]	jnicalculateWeights()
static double[]	jnicalculateWeightsParameters(int num_iteration, int w_max, int random_initial, int seed, double min_samp_rate, double max_samp_rate, double init_samp_rate, double[] initialWeights)
static void	jniinitDBGraph(int num_nodes, int num_arcs) Calculates optimal weights for IGP weights given a traffic demand matrix.
static void	jniinitDBTrafficMatrix(int num_nodes, int num_tm)
static void	jnikillIGPWO()
void	restart() restarts the algorithm with the same parameters
void	start(java.util.HashMap params) Used to start and initialize the algorithm
void	stop() Used to stop the algorithm

Methods inherited from class java.lang.Object

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

Constructor Detail

IGPWO

public IGPWO()

Method Detail

jniinitDBGraph

public static void jniinitDBGraph(int num_nodes,
                                  int num_arcs)

Calculates optimal weights for IGP weights given a traffic demand matrix.

jniinitDBTrafficMatrix

public static void jniinitDBTrafficMatrix(int num_nodes,
                                          int num_tm)

jnicalculateWeights

public static double[] jnicalculateWeights()
                                    throws java.lang.Exception

Throws:

java.lang.Exception

jnicalculateWeightsParameters

public static double[] jnicalculateWeightsParameters(int num_iteration,
                                                     int w_max,
                                                     int random_initial,
                                                     int seed,
                                                     double min_samp_rate,
                                                     double max_samp_rate,
                                                     double init_samp_rate,
                                                     double[] initialWeights)
                                              throws java.lang.Exception

Throws:

java.lang.Exception

jniaddArc

public static void jniaddArc(int index,
                             int new_id,
                             int new_headnode,
                             int new_tailnode,
                             double new_capacity)
                      throws AddDBException

Throws:

AddDBException

jniaddNode

public static void jniaddNode(int index,
                              int new_id)
                       throws AddDBException

Throws:

AddDBException

jniaddCommodity

public static void jniaddCommodity(int matrix_index,
                                   int new_dstnode,
                                   int new_srcnode,
                                   double demandValue)
                            throws AddDBException

Throws:

AddDBException

jnikillIGPWO

public static void jnikillIGPWO()
                         throws java.lang.Exception

Throws:

java.lang.Exception

start

public void start(java.util.HashMap params)
           throws AlgorithmInitialisationException

Description copied from interface: TotemAlgorithm

Used to start and initialize the algorithm

Specified by:

start in interface TotemAlgorithm

Throws:

AlgorithmInitialisationException

calculateWeights

public TotemActionList calculateWeights(int ASID,
                                        int[] TMID)
                                 throws java.lang.Exception

Specified by:

calculateWeights in interface IGPWeightOptimization

Throws:

java.lang.Exception

stop

public void stop()

Description copied from interface: TotemAlgorithm

Used to stop the algorithm

Specified by:

stop in interface TotemAlgorithm

calculateWeightsParameters

public TotemActionList calculateWeightsParameters(int ASID,
                                                  int[] TMID,
                                                  int num_iters,
                                                  int w_max)
                                           throws java.lang.Exception

Throws:

java.lang.Exception

calculateWeightsParameters

public TotemActionList calculateWeightsParameters(int ASID,
                                                  int[] TMID,
                                                  int num_iters,
                                                  int w_max,
                                                  boolean random,
                                                  int seed,
                                                  double min_samp_rate,
                                                  double max_samp_rate,
                                                  double init_samp_rate)
                                           throws java.lang.Exception

Throws:

java.lang.Exception

getStartAlgoParameters

public java.util.List<ParameterDescriptor> getStartAlgoParameters()

Description copied from interface: TotemAlgorithm

Returns the optional parameters that can be given when starting the algorithm

Specified by:

getStartAlgoParameters in interface TotemAlgorithm

Returns:

the list of algorithm parameters

getRunningParameters

public java.util.HashMap getRunningParameters()

Description copied from interface: TotemAlgorithm

Returns the parameters given when the algorithm was started

Specified by:

getRunningParameters in interface TotemAlgorithm

Returns:

isDBValid

public boolean isDBValid()

Description copied from interface: DomainSyncAlgorithm

return true if the local DB is up-to-date

Specified by:

isDBValid in interface DomainSyncAlgorithm

Returns:

invalidateDB

public void invalidateDB()

Description copied from interface: DomainSyncAlgorithm

Tells the algo that the database is not up-to-date

Specified by:

invalidateDB in interface DomainSyncAlgorithm

restart

public void restart()

Description copied from interface: DomainSyncAlgorithm

restarts the algorithm with the same parameters

Specified by:

restart in interface DomainSyncAlgorithm