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Forum Numerical Method Optimization

SQPActiveSetSolver usage

  1. ashokeParticipant 2015-02-08 at 10:49 am

    Hi,

    I had been using an old version of suanshu library(1.9.0). Now I am trying to get my code work for the latest version (3.1.2). One of the methods in the old version was SQPActiveSetSolver. The part of the code I am having trouble is the following.

    SQPActiveSetSolver optim = new SQPActiveSetSolver();
optim.solve(problem,tolerance,iterations);

    Vector xmin = optim.search(new DenseVector(initialPoint), new DenseVector(SQPArg2), new DenseVector(SQPArg3));

    I tried using the SQPActiveSetMinimizer(), but this class doesn’t have the search method. Could you help me on how I should go about changing it?

    Let me know if you need any other details.

    Regards

  2. RyuParticipant 2015-02-08 at 4:57 pm

    Hello,

    There are significant changes between the two versions and there is no mapping. You can consider them totally different software. I suggest that you get familiar with the latest version and update your code instead.

    For an example on using SQPActiveSetSolver, please see this example: http://redmine.numericalmethod.com/projects/public/repository/entry/Examples/src/main/java/com/numericalmethod/suanshu/examples/SequentialQuadraticProgramming.java

    Briefly, the method solve(…) constructs a Solution object, on which you may call the method search(…).

  3. ashokeParticipant 2015-02-11 at 4:51 am

    Thanks! It helped.