[SciPy-user] [optimization] OpenOpt release v 0.18

dmitrey dmitrey.kroshko@scipy....
Sun Jun 15 15:02:23 CDT 2008


Hi all,
I'm glad to inform you about new OpenOpt release: v 0.18.

OpenOpt is free (license: BSD) optimization framework (written in Python 
language) with connections to lots of solvers (some are C- or 
Fortran-written) and some native ones.

Changes since previous release 0.17 (March 15, 2008):

    * connection to glpk MILP solver (requires cvxopt v >= 1.0)

    * connection to NLP <http://scipy.org/scipy/scikits/wiki/NLP> solver
      IPOPT (requires python-ipopt wrapper (made by Eric Xu You)
      installation, that is currently available for Linux only, see
      openopt NLP webpage for more details)

    * major changes for NLP/NSP solver ralg

    * splitting non-linear constraints can benefit
      <http://openopt.blogspot.com/2008/05/major-changes-for-non-linear.html>
      for some solvers

    * unified text output for NLP solvers

    * handling of maximization problems
      <http://openopt.blogspot.com/2008/06/maximization-problems.html>
      (via p.goal = 'max' or 'maximum')

    * some bugfixes, lots of code cleanup

more details here:
http://openopt.blogspot.com/2008/06/openopt-018.html

Regards,
Dmitrey.


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