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Unconstrained Optimization

Provide 35 unconstrained optimization problems

(2117 downloads for this version - 21758 downloads for all versions)

Details

Version

0.1
A more recent valid version with binaries for Scilab 5.2 exists: 0.2

Authors

Michael Baudin

Benoit Hamelin

Jean-Pierre Dussault

Chaya Gurwitz

Livia Klein

Madhu Lamba

John Burkardt

Jorge More

Burton Garbow

Kenneth Hillstrom

Owner Organization

DIGITEO

Maintainers

Michael BAUDIN

Allan CORNET

Category

Optimization

Website

http://forge.scilab.org/index.php/p/uncprb/

License

LGPL (3.0)

Creation Date

June 1, 2010

Source created on

Scilab 5.2.x

Binaries available on

Scilab 5.2.x:

Windows 64-bit

Windows 32-bit

Linux 64-bit

Linux 32-bit

macOS

Install command

--> atomsInstall("uncprb")

Report a bug

GitLab's issues for uncprb

Description

            Purpose

The goal of this toolbox is to provide unconstrained optimization problems
in order to test optimization algorithms.

The More, Garbow and Hillstrom collection of test functions is widely used
in testing unconstrained optimization software.  The code for these problems
is available in Fortran from the netlib software archives.

The port from Fortran to Matlab was done by two undergraduate students at
Brooklyn College,
Livia Klein and Madhu Lamba, under the supervision of Chaya Gurwitz.

Benoit Hamelin did the port from Matlab to Scilab v4 with m2sci and
did some manual tuning of the result.

Michael Baudin did the port from Scilab v4 to Scilab v5.
I renamed the functions to avoid naming conflicts.
I formatted the help pages to generate automatically the xml from the
sources.

Features
--------

Provides 35 unconstrained optimization problems.
Provide the function value, the gradient, the function vector, the Jacobian.
Provide the Hessian matrix for 18 problems.
Provides the starting point for each problem.
Provides the optimum function value and the optimum point x for many problems.
Provide finite difference routines for the gradient, the Jacobian and the
Hessian matrix.
Macro based functions : no compiler required.
All function values, gradients, Jacobians and Hessians are tested.

References
----------

"Algorithm 566: FORTRAN Subroutines for Testing Unconstrained Optimization
Software", ACM Transactions on Mathematical Software (TOMS), Volume 7 ,  Issue
1, March 1981, Pages: 136 - 140, J. J. Moré, Burton S. Garbow, Kenneth E.
Hillstrom

"HESFCN - A Fortran Package Of Hessian Subroutines For Testing Nonlinear
Optimization
Software", Victoria Averbukh, Samuel Figueroa, And Tamar Schlick Courant
Institue Of Mathematical Sciences

http://www.dmi.usherb.ca/~hamelin/autodiff/html/sciad_en.html

Authors
-------

Scilab v5 port and update: 2010, Michael Baudin
Scilab port: 2000-2004, Benoit Hamelin, Jean-Pierre Dussault
Matlab port: Chaya Gurwitz, Livia Klein, and Madhu Lamba
2000 - John Burkardt (optimum points for problem #20)
Fortran 77: Jorge More, Burton Garbow and Kenneth Hillstrom

Files (2)

[173.76 kB]

uncprb-0.1-2-src.zip

Source code archive

Upload date : 2010-06-02 15:49:53
MD5         : 58a53f27dc3435f75318f9353f736ff6
SHA1        : ec6da2a84c02efbc0d8175cd78547af13b2da762
Downloads   : 307
 File list

[306.90 kB]

uncprb_0.1-1.bin.zip

OS-independent binary for Scilab 5.2.x

Binary version
Automatically generated by the ATOMS compilation chain

Upload date : 2010-06-02 08:58:06
MD5         : 994f94b84fa5be4c138253acefe0e900
SHA1        : f2fa85c26c7efc52ea0b93fcdea56475c0aba984
Downloads   : 1810
 File list

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Comments (1) ↑ Leave a comment

Comment -- August 2, 2011, 10:22:22 AM

Here is the changelog of the version 0.1:


uncprb (0.1)
    * Initial version
    * 0.1-2 : fixed portability bugs in the unit tests
    * rename to avoid name conflicts
    * create module architecture
    * format comments for auto-generation
    * create unit tests for uncprb_get* functions
    * fixed problem #27 : almost.sci is missing
    * fixed gradient of problem #31 : Broyden Banded
    * launch optim and fminsearch on these benchmarks
    * fixed ambiguity of problem 35:   
	  -->uncprb_getname(35)  = rosex   
	  but getproblems indicates chebyquad
    * suppressed the fvec = fvec'
    * suppressed the %sum  
    * suppressed the zero = 0, one = 1, two = 2, etc...
    * checked conditions on n and m where appropriate
    * provided function value at optimum
    * provided optimum x when available
    * provided a classification
      * class 1 : Systems of Nonlinear Equations
      * class 2 : Non Linear Least Squares
      * class 3 : Unconstrained Minimization
    * create the overview in xml and generate the help
      * see .backup file and check against XXE
    * provided Hessian matrix when available (see algo 566)
    * checked exact Hessians with finite differences
    * run the fortran Algo 566 and compare the data