[Couenne] Couenne Digest, Vol 10, Issue 2
Choaib Bousba
choaib.bousba at atosorigin.com
Thu Sep 3 12:19:01 EDT 2009
Thank you again Pietro for your explanations.
I was just mistaking about the displaying of ipopt options. You are
fully correct.
Best Regards
=====================
Choaib Bousba
Energy Systems Analysis Expert
Atos Origin - Energy & Utilities
Zirst - 36 Chemin du Vieux Chêne
B.P. 104 - 38243 MEYLAN Cedex - France
Tel :(+33) 4 76 41 67 37
Mob :(+33) 6 12 72 85 42
Fax :(+33) 4 76 90 47 08
E-Mail : choaib.bousba at atosorigin.com
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> 1. Re: Couenne Digest, Vol 9, Issue 2 (Pietro Belotti)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 02 Sep 2009 12:05:04 -0400
> From: Pietro Belotti <belotti at lehigh.edu>
> Subject: Re: [Couenne] Couenne Digest, Vol 9, Issue 2
> To: couenne at list.coin-or.org
> Message-ID: <20090902120504.89316ctk2r7ujkc0 at imp6.cc.lehigh.edu>
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> Dear Choaib,
>
> the options are passed to Couenne via couenne.opt without AMPL knowing
> about them. Couenne uses the AMPL interface only to exchange data
> about the problem and the solution, not the options. Therefore,
> unfortunately AMPL does not know about any Couenne option and cannot
> display them.
>
> Hope this helps.
>
> Cheers,
> Pietro
>
>
> On 09/02/2009, Choaib Bousba <choaib.bousba at atosorigin.com> wrote:
>
>
>> Dear Pietro,
>>
>> Thank you for answering.
>>
>> Sorry I think I have confused by speaking abour AMPL. In fact I
>> meant that when I wann to display the value of any parameter
>> supposedly set in the file "couenne.opt", I get the message given as
>> example. For some reason, I tought I can display any parameter set
>> in ipopt.opt file using ampl command , for example: display
>> constr_viol_tol Thank you again.
>>
>>
>>
>>
>> Best Regards =====================
>>
>>
>> Choaib Bousba Energy Systems Analysis Expert
>>
>> Atos Origin - Energy & Utilities Zirst - 36 Chemin du Vieux Ch?ne
>> B.P. 104 - 38243 MEYLAN Cedex - France
>>
>> Tel :(+33) 4 76 41 67 37 Mob :(+33) 6 12 72 85 42
>> Fax :(+33) 4 76 90 47 08
>>
>> E-Mail : choaib.bousba at atosorigin.com
>>
>>
>>
>> couenne-request at list.coin-or.org a ?crit :
>>
>>> Send Couenne mailing list submissions to
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>>> To subscribe or unsubscribe via the World Wide Web, visit
>>> http://list.coin-or.org/mailman/listinfo/couenne
>>> or, via email, send a message with subject or body 'help' to
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>>> Today's Topics:
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>>> 1. Re: about couenne.opt file (Pietro Belotti)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Wed, 05 Aug 2009 11:01:04 -0400
>>> From: Pietro Belotti <belotti at lehigh.edu>
>>> Subject: Re: [Couenne] about couenne.opt file
>>> To: couenne at list.coin-or.org
>>> Message-ID: <20090805110104.16255ulsp8zkbo34 at imp6.cc.lehigh.edu>
>>> Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
>>> format="flowed"
>>>
>>> Dear Choaib,
>>>
>>> for now, all Couenne options can only be specified in the
>>> couenne.opt file only, in the following format:
>>>
>>> convexifying_print_level 0
>>>
>>> If a couenne.opt file is placed as you say, there is no need to
>>> specify those options again in AMPL.
>>>
>>> Pietro
>>>
>>>
>>> On 08/04/2009, Choaib Bousba <choaib.bousba at atosorigin.com> wrote:
>>>
>>>
>>>
>>>> Dear All,
>>>>
>>>> I try to use couenne for the first time.
>>>> I use ampl to describe a small test problem found in couenne : a user's
>>>> manual (? 5 output of couenne).
>>>> I have installed the file couenne.opt in the same directory as
>>>> couenne.exe and ampl.exe (where I launch the execution of my test problem).
>>>> For some reason I try to found ou set the parameters such as :
>>>> boundtightening_print_level or convexifying_print_level , I get an
>>>> message such as ( please see the screenshot) :
>>>>
>>>> ampl: option convexifying_print_level ;
>>>> option convexifying_print_level ''; #not defined
>>>>
>>>> Could you please explain why I have such kind of message ?
>>>>
>>>>
>>>> Thank you in advance
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>>
>>>>
>>>> Best Regards
>>>>
>>>> =====================
>>>>
>>>>
>>>> Choaib Bousba
>>>>
>>>> Energy Systems Analysis Expert
>>>>
>>>> Atos Origin - Energy & Utilities
>>>>
>>>> Zirst - 36 Chemin du Vieux Ch?ne
>>>>
>>>> B.P. 104 - 38243 MEYLAN Cedex - France
>>>>
>>>> Tel :(+33) 4 76 41 67 37
>>>> Mob :(+33) 6 12 72 85 42
>>>> Fax :(+33) 4 76 90 47 08
>>>>
>>>> E-Mail : choaib.bousba at atosorigin.com
>>>>
>>>>
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>>>> Couenne mailing list
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>>>>
>>>>
>>>>
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