[Dip] Alternative solver for subproblems

[Matthew Galati]

Ok. Good news. Yes, those macros control the compilation of the Decomp
library. So, they need to be set there (when using MSVS).

Let me know if you have any issues.

Thanks,
Matt



On Mon, Jan 3, 2011 at 11:06 AM, Jonas Christoffer Villumsen <
jcvi at man.dtu.dk> wrote:

>  I managed to run with CPLEX. Due to my programming ignorance, I had set
> the preprocessor definitions in the MSVS project defining the problem – not
> in the libDecomp project.  Changing the preprocessor definitions in the
> libDecomp project to:
>
>
>
> __DECOMP_LP_CPX__
>
> __DECOMP_IP_CPX__
>
>
>
> And setting the cplex include dir, it successfully ran cplex.  I guess that
> makes sense…
>
>
>
> Thanks for all of your help.  I appreciate your effort.
>
>
>
> Best regards,
>
> Jonas
>
>
>
>
>
> *From:* Matthew Galati [mailto:matthew.galati at gmail.com]
> *Sent:* 31. december 2010 17:43
> *To:* Jonas Christoffer Villumsen
> *Cc:* Shahin Gelareh; dip at list.coin-or.org
> *Subject:* Re: [Dip] Dip Digest, Vol 8, Issue 9
>
>
>
> Run (1) is definitely using CBC.
>
> And the exception message explains the issue. Core range constraints are
> not supported. I actually don't recall exactly why they are not supported
> and I can probably fix that. But, for the time being, just split up your
> range constraints into two constraints (<= and >=) and it should work fine.
>
> "COIN Exception [ Range constraints are not yet supported. Please break up
> your range constraints into two constraints. ] at
> ..\..\..\..\src\DecompAlgo.cpp:L1170 in DecompAlgo::masterMatrixAddArtCols"
>
> I added a ticket to remind me to fix that:
> https://projects.coin-or.org/Dip/ticket/61
>
> Run (2) looks fine, although it is using CLP and CBC.
>
> Send me your MSVS project (and solution) file and see if I can figure it
> out. Unfortunately, I don't have access to a windows cplex license - so I am
> not sure how to test this.
>
> Thanks,
> Matt
>
>
>
>
>
>
>  On Thu, Dec 30, 2010 at 6:41 PM, Jonas Christoffer Villumsen <
> jcvi at man.dtu.dk> wrote:
>
> Logs for for first  and second run attached.  Thank you for your
> assistance.
>
>
>
> firstrun.txt 1)  has
>
> __DECOMP_LP_CPX__
>
> __DECOMP_IP_CPX__
>
>
>
> secondrun.txt 2) has
>
>
>
> __DECOMP_LP_CLP__
>
> __DECOMP_IP_CPX__
>
>
>
>
>
>
>
> *From:* Matthew Galati [mailto:matthew.galati at gmail.com]
> *Sent:* 30. december 2010 03:33
> *To:* Jonas Christoffer Villumsen
> *Cc:* Shahin Gelareh; dip at list.coin-or.org
>
>
> *Subject:* Re: [Dip] Dip Digest, Vol 8, Issue 9
>
>
>
>
>
>  I have tried different settings
>
>
>
> 1)
>
> __DECOMP_LP_CPX__
>
> __DECOMP_IP_CPX__
>
>
>
> Gives a range constraint error.
>
>
>
> Can you post the error log?
>
> COIN Exception [ Range constraints are not yet supported. Please break up
> your range constraints into two constraints. ] at
> ..\..\..\..\src\DecompAlgo.cpp:L1170 in DecompAlgo:
>
> :masterMatrixAddArtCols
>
>
>
>
>
>
> 2)
>
> __DECOMP_LP_CLP__
>
> __DECOMP_IP_CPX__
>
>
>
> No error.
>
>
>
> In either case, however, It doesn’t seem to be using CPLEX.
>
>
>
> Turn up the log levels and post the log (or just send it to me directly).
>
> In the parameter file, use
>
> [DECOMP]
> LogLpLevel       = 1
> LogDebugLevel = 3
> LogLevel          = 3
>
>
>
>
>
>
>
>
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