Hi

I do remember that Stephane planned to use Slicot for a new version of Kalman and/or Riccati (see enclosed email)  but I do not know how far that work went along its implementation and I am not aware if Slicot library is already being in use in Dynare - i.e. I have not used it and I do not think it is used in C++ Estimation DLL and I do not know why if we need to distribute it with Dynare.

PS: We however have a fast Riccati implementation in Matlab used in Partial Information estimation and that can also be rewritten in C++ easily.

Best regards
George
On 16/07/2011 09:07, Sébastien Villemot wrote: 
Stéphane Adjemian <stepan@dynare.org> writes:


Slicot library is still not used in the estimation dll...

I downloaded succesfully the version 5 of Slicot this morning (currently
Dynare distributes version 4). On Slicot's web site the library is still
presented under a Gnu GPL licence. I will contact the authors next week
to see if they plan to change the licence...

I still cannot download Slicot from the website, it asks for a
password. Can you provide a download URL ?


Yesterday you told me that it was not possible to change a GPL licence,
because anyone can fork... So I guess that it is not an issue if we
distribute old versions of Slicot, even if they choose another licence
for the next versions (>5).

Yes, we can still distribute old versions of Slicot under the
GPL. However this may become a problem over time if the code is not
supported. So it is yet unclear if this is really an issue on the long
term, it depends on our ability to maintain the old code.


-------- Message original --------
Sujet: [DynareDev] [Trac] #194: Clarify Slicot licensing terms
Date : Fri, 15 Jul 2011 20:25:54 -0000
De : Trac Dynare <root@dynare.org>
Répondre à : List for Dynare developers <dev@dynare.org>
Copie à : dev@dynare.org

#194: Clarify Slicot licensing terms
----------------------------+-----------------------------------------------
 Reporter:  sebastien       |       Owner:  george
     Type:  bug             |      Status:  new
 Priority:  critical        |   Milestone:
Component:  Estimation DLL  |     Version:
 Keywords:                  |
----------------------------+-----------------------------------------------
 Currently Dynare (unstable) distributes its own copy of libslicot
 (www.slicot.org). It is used in the Kalman Steady State DLL (at least).

 As of July 15, 2011, it is no longer possible to download libslicot from
 its website. It says that the library is currently undergoing a
 relicensing.

 We need to clarify this with Slicot authors to see if we can continue
 distributing it with Dynare.

-- 
Ticket URL: <https://www.dynare.org/trac/ticket/194>
Dynare <http://www.dynare.org>
The Dynare project
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