[Dip] Dip Digest, Vol 8, Issue 9

[Matthew Galati]

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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