<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Thanks for reply.<div><br></div><div>Trying to conform the MCF example to a similar structure problem.</div>
<div>by "Y_i is a master-only constraint" you mean that I need to declare variable 0<=y_i<=1 as a masterOnly constraint?</div>
<div><br></div><div>regards,</div><div><br><div class="gmail_quote">On Thu, Sep 15, 2011 at 3:20 AM, Matthew Galati <span dir="ltr"><<a href="mailto:matthew.galati@gmail.com" target="_blank">matthew.galati@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">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.<br>
<br>
Sent from my iPhone<br>
<br>
On Sep 14, 2011, at 6:13 PM, Shahin Gelareh <<a href="mailto:shahin.gelareh@gmail.com" target="_blank">shahin.gelareh@gmail.com</a>> wrote:<br>
<br>
> Hi everybody,<br>
><br>
> Let assume the following mip:<br>
><br>
> min cx<br>
><br>
> x_ij < z_i<br>
> y_i + x_ij+x_x_ji <= 2<br>
> all binary except y positive<br>
><br>
> we consider the first set of constraints to be decomposed to one block per i and let the second remain in the RMP.<br>
> Then after implementing this in DIp I get the following errors:<br>
><br>
> -----------------------------<br>
> Column 0 -> y(0) is missing from union of blocks.<br>
> etc..............<br>
> -----------------------------<br>
> apparently this is because y_i does not appear in any block?<br>
> Any one has an idea?<br>
><br>
> regards,<br>
> Shahin<br>
> best regards,<br>
> Shahin<br>
><br>
><br>
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</blockquote></div><br></div>
</blockquote></div><br>