[SciPy-user] [optimization] 10X speedup example for scipy.optimize solver, via using oofun

dmitrey dmitrey.kroshko@scipy....
Sat Oct 11 06:23:41 CDT 2008


I have committed the iterprint changes to svn, you could try now.
Regards, D.

dmitrey wrote:
> Nils Wagner wrote:
>   
>> On Fri, 10 Oct 2008 20:25:56 +0300
>>   dmitrey <dmitrey.kroshko@scipy.org> wrote:
>>   
>>     
>>> Hi all,
>>> if anyone is interested here's 10X speedup example for 
>>> scipy fmin_ncg 
>>> using openopt oofun. Other solvers (from or beyond 
>>> scipy.optimize) can 
>>> yield similar speedup.
>>>
>>> http://openopt.blogspot.com/2008/10/example-of-10x-speedup-for-nlp-via.html
>>>
>>> Regards, D.
>>> _______________________________________________
>>> SciPy-user mailing list
>>> SciPy-user@scipy.org
>>> http://projects.scipy.org/mailman/listinfo/scipy-user
>>>     
>>>       
>> python -i 
>> svn/openopt/scikits/openopt/examples/oofun/speedup.py
>> Traceback (most recent call last):
>>    File 
>> "svn/openopt/scikits/openopt/examples/oofun/speedup.py", 
>> line 25, in ?
>>      from scikits.openopt import NLP,  oofun,  oovar
>>    File 
>> "/usr/lib/python2.4/site-packages/scikits/openopt/__init__.py", 
>> line 6, in ?
>>      from oo import LP, NLP, NSP, MILP, QP, NLSP, LSP, 
>> GLP, LLSP,  MMP, LLAVP
>>    File 
>> "/usr/lib/python2.4/site-packages/scikits/openopt/oo.py", 
>> line 6, in ?
>>      from Kernel.BaseProblem import *
>>    File 
>> "/usr/lib/python2.4/site-packages/scikits/openopt/Kernel/BaseProblem.py", 
>> line 11, in ?
>>      from ooIterPrint import ooTextOutput
>>    File 
>> "/usr/lib/python2.4/site-packages/scikits/openopt/Kernel/ooIterPrint.py", 
>> line 6
>>      'isFeasible': lambda p: ('+' if p.rk<p.contol else 
>> '-')
>>                                    ^
>> SyntaxError: invalid syntax
>>
>> Nils
>>   
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>> SciPy-user@scipy.org
>> http://projects.scipy.org/mailman/listinfo/scipy-user
>>
>>
>>
>>   
>>     
>
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