OPTI Toolbox A free MATLAB Toolbox for Optimization http://inverseproblem.co.nz/OPTI/index.php/Site/BlogIt-Admin?action=rss Tue, 19 Jan 2021 05:57:16 GMT http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-Development-has-Ceased?when=2019-07-07T04:59:24Z Blog / OPTI Toolbox Development has Ceased 2019-07-07T04:57:00Z Sun, 07 Jul 2019 04:57:00 GMT OPTI Toolbox development has ceased, as per: https://groups.google.com/forum/#!topic/opti-toolbox-forum/dR6x-1gBMkA

]]> jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v228-Released?when=2018-03-04T07:45:49Z Blog / OPTI Toolbox v2.28 Released 2018-03-04T07:44:00Z Sun, 04 Mar 2018 07:44:00 GMT Version 2.28 has just been released with minor updates. Changes include:

  • Added option to installer to allow users to bypass auto download of mex files and specify location manually
  • Added emphasis setting options to scip/scipset
  • Added GNU Scientific Library MEX Interface (v2.4, NLS)
  • Rebuilt all solvers against MKL v2018.0 R1
  • Updated CLP to v1.16.11
  • Updated CBC to v2.9.9
  • Updated IPOPT to v3.12.9
  • Updated BONMIN to v1.8.6
  • Updated SCIP to v5.0.1
]]> jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v227-Released?when=2017-07-10T08:55:46Z Blog / OPTI Toolbox v2.27 Released 2017-07-10T08:54:00Z Mon, 10 Jul 2017 08:54:00 GMT Version 2.27 has just been released with minor updates. Changes include:

  • Updated installer to download the MEX files automatically from GitHub as a single zipped directory.
  • For users pre-R2014b, detailed instructions on how to manually download the MEX files is now provided.

Apologies for the confusion while I have been sorting out the installer. Let me know if there are any problems!

]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v225-Released?when=2017-06-24T03:20:27Z Blog / OPTI Toolbox v2.25 Released 2017-06-24T03:19:00Z Sat, 24 Jun 2017 03:19:00 GMT Version 2.25 has just been released with minor updates. Changes include:

  • Removed HTML documentation (problems with R2016b+ help index)
  • Updated Visual Studio Builder for VS2017
  • Rebuilt all solvers with VS2017
  • Rebuilt all solvers against MKL v2017.0 R3
  • Updated NOMAD to v3.8.1
  • Updated IPOPT to v3.12.7
  • Updated SCIP to v4.0.0
]]> http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v223-Released?when=2016-12-27T23:47:39Z Blog / OPTI Toolbox v2.23 Released 2016-12-27T23:46:00Z Tue, 27 Dec 2016 23:46:00 GMT Version 2.23 has just been released with minor updates. Changes include:

  • Updated documentation to match move to Inverse Problem Limited
  • Rebuilt all solvers against MKL v11.3 R4
  • Updated IPOPT to 3.12.6
  • Updated ASL to v20160922, including VSBuild for auto compilation
  • Updated nomadset to latest spec (C. Tribes)
  • Fixed bug where maxnodes instead of maxiter was used for BARON maxiter setting.
  • Fixed bug where x0 as a matrix could be supplied as solve(opt,x0) and skip error generation.
  • [API Change] Changed return codes for constraint linearity in ASL interface
]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-Academic-Version-Online?when=2016-12-27T23:23:58Z Blog / OPTI Toolbox Academic Version Online 2016-12-27T23:21:00Z Tue, 27 Dec 2016 23:21:00 GMT The academic version of OPTI Toolbox is back online. The process to download it is as follows:

  1. Download the Open Source Version from here.
  2. Download the Academic Extension from here, and following the instructions on this page to install it.

While this is now a two-step process, it simplifies obtaining small changes via Git for the majority of users.

]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-has-moved?when=2016-12-21T02:21:58Z Blog / OPTI Toolbox has moved! 2016-12-21T01:16:00Z Wed, 21 Dec 2016 01:16:00 GMT As I have now left AUT, I have moved OPTI into our start-up company. This change means very little for the OPTI community, other than a new web address, and the mailing list has been deleted. I've also taken the chance to change the Wiki skin for a bit of variation.

One change to note however is that GitHub will become the primary download location for OPTI (including MEX files) - no more download forms for the open source version. For Academic users, a patch will be provided (asap) to add SCIP. More details to follow.

]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v222-Released?when=2016-09-19T04:03:13Z Blog / OPTI Toolbox v2.22 Released 2016-09-19T04:02:00Z Mon, 19 Sep 2016 04:02:00 GMT Version 2.22 has just been released with minor updates. Changes include:

  • Added suggestion to rethrow errors when function testing (V. Pericoli)
  • Fixed handling of very large QP problems (skips non-convex checks)
  • Fixed excessive memory when checking of symmetric/tril/triu Hessians by using builtin MATLAB routines (H. Mittelmann)
  • [API Change] Changed symbset interface to now only accept optiset options via 'optiOpts' field.
]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/Wiki-Fixed?when=2016-06-15T02:38:06Z Blog / Wiki Fixed! 2016-06-15T02:37:00Z Wed, 15 Jun 2016 02:37:00 GMT Apologies while our Wiki was down. Something went wrong with one of the add-ins (BlogIt) and it took a while to track and fix.

OPTI Downloads should be available again.

]]> Jonny http://inverseproblem.co.nz/OPTI/index.php/Blog/OPTI-Toolbox-v221-Released?when=2016-05-22T06:06:22Z Blog / OPTI Toolbox v2.21 Released 2016-05-22T06:05:00Z Sun, 22 May 2016 06:05:00 GMT Version 2.21 has just been released with minor updates. Changes include:

  • Rebuilt all solvers against MKL v11.3 R3
  • Fixed bug when nleq cannot accept x0 = zeros(n,1) during function testing (B. Duarte)
  • Fixed bug where fixed binary variables were written as normal binary variables in MPS files
  • Fixed bug where binary variables were not handled correctly by intlinprog
  • Fixed bug where SNLE problems not handled correctly by MATLAB solvers
  • Increased precision in writing MPS files
  • Updated coinRead to correctly identify binary variables
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