No problem. Let me know if you have any questions.<br><br>The obvious next step would be to hook up a specialized solver for the oracle - which is simply a max-flow problem. Currently, I just call the built-in ILP solver - which can be relatively inefficient. I don't have time to hook that up right now, but will try to find some time later.<br>
<br>Cheers,<br>Matt<br><br><br><br><div class="gmail_quote">On Sat, Feb 13, 2010 at 3:49 AM, Plum, Christian Edinger Munk <span dir="ltr"><<a href="mailto:Christian.Edinger.Munk.Plum@maersk.com">Christian.Edinger.Munk.Plum@maersk.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
<br>
Thanks for adding the MCF example, its very helpful to illuminate the<br>
usage of DIP.<br>
<br>
Brgds,<br>
<br>
Christian Plum<br>
<div class="im"><br>
<br>
<br>
<br>
<br>
<br>
-----Original Message-----<br>
From: Laszlo Ladanyi [mailto:<a href="mailto:ladanyi@us.ibm.com">ladanyi@us.ibm.com</a>]<br>
Sent: Friday, February 12, 2010 3:37 PM<br>
To: Matthew Galati<br>
Cc: <a href="mailto:bcp@list.coin-or.org">bcp@list.coin-or.org</a>; Plum, Christian Edinger Munk;<br>
<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a><br>
</div><div><div></div><div class="h5">Subject: Re: [BCP] MCF Example (from BCP examples) added to DIP<br>
<br>
Nope, there are no bigger test sets in BCP. I'm glad you were able to<br>
get it working. I planned to answer your query earlier this week, but<br>
I'm swamped with work :-(.<br>
<br>
--Laci<br>
<br>
<br>
<br>
From:<br>
Matthew Galati <<a href="mailto:Matthew.Galati@sas.com">Matthew.Galati@sas.com</a>><br>
To:<br>
"<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>" <<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>>, "<a href="mailto:bcp@list.coin-or.org">bcp@list.coin-or.org</a>"<br>
<<a href="mailto:bcp@list.coin-or.org">bcp@list.coin-or.org</a>><br>
Cc:<br>
"<a href="mailto:Christian.Edinger.Munk.Plum@maersk.com">Christian.Edinger.Munk.Plum@maersk.com</a>"<br>
<<a href="mailto:Christian.Edinger.Munk.Plum@maersk.com">Christian.Edinger.Munk.Plum@maersk.com</a>><br>
Date:<br>
02/12/2010 09:19 AM<br>
Subject:<br>
[BCP] MCF Example (from BCP examples) added to DIP Sent by:<br>
<a href="mailto:bcp-bounces@list.coin-or.org">bcp-bounces@list.coin-or.org</a><br>
<br>
<br>
<br>
Hi -<br>
<br>
As requested by Christian Plum, I have added another DIP example for<br>
solving the Splitable Integer Multicommodity Flow Problem. This model<br>
was taken from the BCP/examples directory and should serve as a simple<br>
example of how one might take a BCP app and write it using DIP.<br>
<br>
You can find it in trunk at Dip/examples/MCF. I have only tested it on<br>
the<br>
3 small data sets provided in the BCP directory. The results match BCP.<br>
<br>
BCPers - do you have bigger data for this example? If so, point me to it<br>
and I'll see how DIP does.<br>
<br>
Any questions or problems, let me know.<br>
<br>
Thanks,<br>
Matt<br>
<br>
<br>
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