[Dip] The variables is not in the union of blocks

[Shahin Gelareh]

> Thanks for reply.
>
> Trying to conform the MCF example to a similar structure problem.
> by "Y_i is a master-only constraint" you mean that I need to declare
> variable 0<=y_i<=1  as a masterOnly constraint?
>
> regards,
>
> On Thu, Sep 15, 2011 at 3:20 AM, Matthew Galati <matthew.galati at gmail.com>wrote:
>
>> Y_i is a master-only constraint and must be identified as such. Are you
>> building your own app? Or using MilpBlock app? If the latter, DIP should
>> take of it for you.
>>
>> Sent from my iPhone
>>
>> On Sep 14, 2011, at 6:13 PM, Shahin Gelareh <shahin.gelareh at gmail.com>
>> wrote:
>>
>> > Hi everybody,
>> >
>> > Let assume the following mip:
>> >
>> > min   cx
>> >
>> >         x_ij < z_i
>> >      y_i +   x_ij+x_x_ji <= 2
>> > all binary except y positive
>> >
>> > we consider the first set of constraints to be decomposed to one block
>> per i and let the second remain in the RMP.
>> > Then after implementing this in DIp I get the following errors:
>> >
>> > -----------------------------
>> > Column     0 ->                      y(0) is missing from union of
>> blocks.
>> > etc..............
>> > -----------------------------
>> > apparently this is because y_i does not appear in any block?
>> > Any one has an idea?
>> >
>> > regards,
>> > Shahin
>> > best regards,
>> > Shahin
>> >
>> >
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>> > http://list.coin-or.org/mailman/listinfo/dip
>>
>
>
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