[SciPy-dev] GSoC weekly report

dmitrey openopt@ukr....
Sat Aug 18 04:05:41 CDT 2007


Hi all,
because of some reasons (including work and study in my dept) I'm a 
little bit out of my GSOC schedule but I hope I'll have all it done 
in-time, and/or I will spent some more days after GSoC finish.

So, this week I updated openopt documentation, some examples were added 
(see ./examples/nlp_1.py, nlp_2.py, qp_1.py, milp_1.py, lp_1.py, nsp_1.py)
2 solvers from scipy were connected: l_bfgs_b as scipy_lbfgsb and tnc as 
scipy_tnc.
I tried to connect cobyla, but I encountered some problems described in 
my blog 
http://openopt.blogspot.com/2007/08/lbfgsb-from-scipyoptimize-have-been.html

I've got another one letter from ALGENCAN developers. They informed me 
they took into account some my propositions (using numpy.array instead 
of python list etc) and have already implemented them. However, I 
informed them of some more proposition, and still there are no answer - 
will they implement those ones or not. On the other hand, I think it's 
already pass enough requirements to be implemented as openopt solver, 
and I guess it will be much more effective than lincher (because 
sometimes it's more effective than well-known IPOPT). However, it 
requires several days to connect, and I'm enable to do this without GSoC 
schedule modification.
Read more about the ALGENCAN letter at 
http://openopt.blogspot.com/2007/08/news-from-algencan.html

openopt tickets 33 and 34 filed by Nils Wagner had been fixed (however, 
I didn't observed problem of 33rd) and should be closed, but I still 
have troubles with login/register in projects.scikits.org, and Jeff 
Strunk hasn't answered my letter yet. See 
http://openopt.blogspot.com/2007/08/openopt-tickets-33-and-34.html for 
more details.

Also, some minor changes to lincher were made (I have no time for major 
enhancements).

Regards, D.




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