Re: [eclipse-clp-users] 'Problem is infeasible!' in eplex goes to stdout

From: Kish Shen <kisshen_at_...5...>
Date: Tue, 21 Oct 2014 21:27:19 +0100
Hi Sergii,

I am actually in the middle of building the new Cbc binaries, which I 
have verified does resolve your issue.

Sorry this is taking so long. It took us a while to get our daily build 
system working again, and then I was away earlier this month.

Hopefully the Cbc binaries will be built and installed later today or 
tomorrow, and then our next ECLiPSe build will use these new Cbc binaries.

Cheers,

Kish

On 21/10/2014 05:07, Sergii Dymchenko wrote:
> Hi,
>
> I've download today's version 6.1 #193 for Linux 64 bits and it looks like
> the issue is still present.
> Any estimates when you will be able to update the binary distribution with
> the updated CBC version?
>
> Sergii.
>
>
>
> On Thu, Sep 11, 2014 at 3:08 PM, Sergii Dymchenko <kit1980@...6...> wrote:
>
>> Hi Kish,
>>
>> Thanks for letting me know. I hope the migration will come out well.
>>
>> I understand that CBC/CLP solvers are third-party solvers and Eplex can
>> also interface to other MP solvers.
>> But in reality if a person new to ECLiPSe wants to try some examples he
>> will just download ECLiPSe binaries and it's very unlikely that he will buy
>> other solvers (I believe free GLPK is very slow for integer programming
>> even compared with CBC), install, configure them, etc.
>>
>> Sergii.
>>
>>
>>
>> On Thu, Sep 11, 2014 at 2:55 PM, Kish Shen <kisshen@...5...> wrote:
>>
>>> On 11/09/2014 06:07, Sergii Dymchenko wrote:
>>>
>>>> Hi,
>>>>
>>>> Do you have any estimate when you will be able to update the
>>>> Cbc we use by compiling it with the macro to suppress the printing of
>>>> these messages?
>>>>
>>>> I'd want to publish an article that have some examples using eplex, and
>>>> I'd
>>>> like the examples to work with the latest stable ECLiPSe version if
>>>> someone
>>>> wants to test.
>>>>
>>>> Sergii.
>>>>
>>>
>>> Hi Sergii,
>>>
>>> Unfortunately we had a sudden and unexpected change to the machines we
>>> build ECLiPSe on, and we are in the process of migrating to new machines,
>>> but there are some difficulties, and it is unlikely we will be able to
>>> produce new distributions in the next few days.
>>>
>>> John Forrest (the main implementer of the CBC and CLP solvers) have
>>> kindly updated CBC with the changes so that those messages are no longer
>>> sent directly to stdout. I had wanted to update the CBC in our binary
>>> ECLiPSe distributions, but this will need to wait till we restart our daily
>>> builds.
>>>
>>> The CBC/CLP solvers are third-party solvers and not part of ECLiPSe;
>>> these solvers are distributed with our binary distributions for convenience
>>> and because their license allow us to do so. Eplex can also interface to
>>> other MP solvers, and your examples should run regardless of the actual MP
>>> solver used.
>>>
>>> Cheers,
>>>
>>> Kish
>>>
>>>
>>>
>>>
>>
>
Received on Tue Oct 21 2014 - 20:27:49 CEST

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