Hi,<div>I don't know if I cannot find an example of relax-and-cut in Dip or it does not exist?</div><div>Any comment is appreciated.</div><div><br></div><div>regards,<br><div><br><br><div class="gmail_quote">On Wed, Aug 24, 2011 at 6:00 PM, <span dir="ltr"><<a href="mailto:dip-request@list.coin-or.org">dip-request@list.coin-or.org</a>></span> wrote:<br>
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Today's Topics:<br>
<br>
1. Re: Dip and Dippy? (Michael O'Sullivan)<br>
2. Re: Dip and Dippy? (Ted Ralphs)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 24 Aug 2011 09:29:22 +0000<br>
From: "Michael O'Sullivan" <<a href="mailto:michael.osullivan@auckland.ac.nz">michael.osullivan@auckland.ac.nz</a>><br>
Subject: Re: [Dip] Dip and Dippy?<br>
To: Ted Ralphs <ted@Lehigh.EDU>, piet hoogeveen<br>
<<a href="mailto:piet.hoogeveen@hotmail.com">piet.hoogeveen@hotmail.com</a>><br>
Cc: Stuart Mitchell <<a href="mailto:stu@stuartmitchell.com">stu@stuartmitchell.com</a>>, "<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>"<br>
<<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>>, "Iain Dunning \(<a href="mailto:iaindunning@gmail.com">iaindunning@gmail.com</a>\)"<br>
<<a href="mailto:iaindunning@gmail.com">iaindunning@gmail.com</a>><br>
Message-ID:<br>
<<a href="mailto:90BC6B5184095141AF17DAAF464E2A6F077B906B@uxcn10-1.UoA.auckland.ac.nz">90BC6B5184095141AF17DAAF464E2A6F077B906B@uxcn10-1.UoA.auckland.ac.nz</a>><br>
Content-Type: text/plain; charset="windows-1255"<br>
<br>
Hi Ted,<br>
<br>
TortoiseSVN tells me I am using the HEAD revision of Dip, so I think we are using the latest and greatest when compiling. At least the Windows versions I am putting into PyPI should be. Stu, Iain, any comment on the Linux version? Hopefully it is just our installation docs that need updating?<br>
<br>
By the way we used DIP "out of the box" on a set partitioning problem of reasonable (not huge) size and beat Gurobi and Cbc pants down. We do even better when using a customised subproblem solver. I am in the process of submitting both PuLP and Dippy papers to Computers and OR.<br>
<br>
Kind regards, Mike<br>
<br>
-----Original Message-----<br>
From: Ted Ralphs [mailto:<a href="mailto:ted@Lehigh.EDU">ted@Lehigh.EDU</a>]<br>
Sent: Wednesday, 24 August 2011 4:16 p.m.<br>
To: piet hoogeveen<br>
Cc: <a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>; Michael O'Sullivan<br>
Subject: Re: [Dip] Dip and Dippy?<br>
<br>
2011/8/20 piet hoogeveen <<a href="mailto:piet.hoogeveen@hotmail.com">piet.hoogeveen@hotmail.com</a>>:<br>
> Hi all,<br>
><br>
> I have a question about Dip and Dippy.<br>
><br>
> $ sudo easy_install? -U coinor.dippy<br>
> I get the following:<br>
> user@ubuntu:~$ sudo easy_install? -U coinor.dippy [sudo] password for<br>
> user:<br>
> Searching for coinor.dippy<br>
> Reading <a href="http://pypi.python.org/simple/coinor.dippy/" target="_blank">http://pypi.python.org/simple/coinor.dippy/</a><br>
> Reading <a href="https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy" target="_blank">https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy</a><br>
> No local packages or download links found for coinor.dippy<br>
> error: Could not find suitable distribution for<br>
> Requirement.parse('coinor.dippy')<br>
> user@ubuntu:~$<br>
<br>
Looks to me like there are only packages there for Windows from the file names, so I guess that is the issue. However, there are instructions for building Dippy and those seem to be easy and work fine. When you install Dippy, DIP gets downloaded and installed automatically, so you don't even need to do that step yourself.<br>
<br>
The only issue is that Dippy currently works with Dip-0.8.7, not with most current release. I've cc'd the project manager on this e-mail.<br>
Mike, any chance of getting Dippy updated to the latest release on COIN? I think you are already working with DIP's trunk, right? I'm going to start using Dippy for some course projects soon and would like to have it working with the latest and greatest.<br>
<br>
Cheers,<br>
<br>
Ted<br>
--<br>
Dr. Ted Ralphs<br>
Associate Professor, Lehigh University<br>
(610) 628-1280<br>
ted 'at' lehigh 'dot' edu<br>
<a href="http://coral.ie.lehigh.edu/~ted" target="_blank">coral.ie.lehigh.edu/~ted</a><br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Wed, 24 Aug 2011 10:39:54 -0400<br>
From: Ted Ralphs <<a href="mailto:ted@lehigh.edu">ted@lehigh.edu</a>><br>
Subject: Re: [Dip] Dip and Dippy?<br>
To: "Michael O'Sullivan" <<a href="mailto:michael.osullivan@auckland.ac.nz">michael.osullivan@auckland.ac.nz</a>><br>
Cc: Stuart Mitchell <<a href="mailto:stu@stuartmitchell.com">stu@stuartmitchell.com</a>>, "<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>"<br>
<<a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>>, "Iain Dunning \(<a href="mailto:iaindunning@gmail.com">iaindunning@gmail.com</a>\)"<br>
<<a href="mailto:iaindunning@gmail.com">iaindunning@gmail.com</a>><br>
Message-ID:<br>
<CA+GYycusz94SR=<a href="mailto:4qhzWrbGNi_JNdUsNMmHqLyDyOyOhNyEkuJw@mail.gmail.com">4qhzWrbGNi_JNdUsNMmHqLyDyOyOhNyEkuJw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset=UTF-8<br>
<br>
I'm a bit confused. I just did a an update in SVN to the latest trunk<br>
version of Dippy (which seems to be the only one) and the Makefile<br>
here:<br>
<br>
<a href="https://projects.coin-or.org/CoinBazaar/browser/projects/Dippy/trunk/Makefile" target="_blank">https://projects.coin-or.org/CoinBazaar/browser/projects/Dippy/trunk/Makefile</a><br>
<br>
has the line<br>
<br>
DIPVER := 0.8.7<br>
<br>
If I follow the instructions and do "make develop', that is the<br>
version it checks out and builds. I tried changing "0.8.7" to<br>
"0.82.0", which is the latest release of DIP and the build breaks<br>
because some of the patches don't get applied properly (there may be<br>
other things that would break, too).<br>
<br>
As for installing from PyPi, when I try the instructions for that, I get<br>
<br>
ted@nemo:~/COIN/Dippy$ bin/easy_install -U coinor.dippy<br>
Searching for coinor.dippy<br>
Reading <a href="http://pypi.python.org/simple/coinor.dippy/" target="_blank">http://pypi.python.org/simple/coinor.dippy/</a><br>
Reading <a href="https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy" target="_blank">https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy</a><br>
No local packages or download links found for coinor.dippy<br>
error: Could not find suitable distribution for<br>
Requirement.parse('coinor.dippy')<br>
<br>
If you go to <a href="http://pypi.python.org/simple/coinor.dippy/" target="_blank">http://pypi.python.org/simple/coinor.dippy/</a>, there are<br>
clearly only Windows version listed there. What Linux versions are you<br>
referring to?<br>
<br>
Cheers,<br>
<br>
Ted<br>
<br>
2011/8/24 Michael O'Sullivan <<a href="mailto:michael.osullivan@auckland.ac.nz">michael.osullivan@auckland.ac.nz</a>>:<br>
> Hi Ted,<br>
><br>
> TortoiseSVN tells me I am using the HEAD revision of Dip, so I think we are using the latest and greatest when compiling. At least the Windows versions I am putting into PyPI should be. Stu, Iain, any comment on the Linux version? Hopefully it is just our installation docs that need updating?<br>
><br>
> By the way we used DIP "out of the box" on a set partitioning problem of reasonable (not huge) size and beat Gurobi and Cbc pants down. We do even better when using a customised subproblem solver. I am in the process of submitting both PuLP and Dippy papers to Computers and OR.<br>
><br>
> Kind regards, Mike<br>
><br>
> -----Original Message-----<br>
> From: Ted Ralphs [mailto:<a href="mailto:ted@Lehigh.EDU">ted@Lehigh.EDU</a>]<br>
> Sent: Wednesday, 24 August 2011 4:16 p.m.<br>
> To: piet hoogeveen<br>
> Cc: <a href="mailto:dip@list.coin-or.org">dip@list.coin-or.org</a>; Michael O'Sullivan<br>
> Subject: Re: [Dip] Dip and Dippy?<br>
><br>
> 2011/8/20 piet hoogeveen <<a href="mailto:piet.hoogeveen@hotmail.com">piet.hoogeveen@hotmail.com</a>>:<br>
>> Hi all,<br>
>><br>
>> I have a question about Dip and Dippy.<br>
>><br>
>> $ sudo easy_install? -U coinor.dippy<br>
>> I get the following:<br>
>> user@ubuntu:~$ sudo easy_install? -U coinor.dippy [sudo] password for<br>
>> user:<br>
>> Searching for coinor.dippy<br>
>> Reading <a href="http://pypi.python.org/simple/coinor.dippy/" target="_blank">http://pypi.python.org/simple/coinor.dippy/</a><br>
>> Reading <a href="https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy" target="_blank">https://projects.coin-or.org/CoinBazaar/wiki/Projects/Dippy</a><br>
>> No local packages or download links found for coinor.dippy<br>
>> error: Could not find suitable distribution for<br>
>> Requirement.parse('coinor.dippy')<br>
>> user@ubuntu:~$<br>
><br>
> Looks to me like there are only packages there for Windows from the file names, so I guess that is the issue. However, there are instructions for building Dippy and those seem to be easy and work fine. When you install Dippy, DIP gets downloaded and installed automatically, so you don't even need to do that step yourself.<br>
><br>
> The only issue is that Dippy currently works with Dip-0.8.7, not with most current release. I've cc'd the project manager on this e-mail.<br>
> Mike, any chance of getting Dippy updated to the latest release on COIN? I think you are already working with DIP's trunk, right? I'm going to start using Dippy for some course projects soon and would like to have it working with the latest and greatest.<br>
><br>
> Cheers,<br>
><br>
> Ted<br>
> --<br>
> Dr. Ted Ralphs<br>
> Associate Professor, Lehigh University<br>
> (610) 628-1280<br>
> ted 'at' lehigh 'dot' edu<br>
> <a href="http://coral.ie.lehigh.edu/~ted" target="_blank">coral.ie.lehigh.edu/~ted</a><br>
><br>
<br>
<br>
<br>
--<br>
Dr. Ted Ralphs<br>
Associate Professor, Lehigh University<br>
(610) 628-1280<br>
ted 'at' lehigh 'dot' edu<br>
<a href="http://coral.ie.lehigh.edu/~ted" target="_blank">coral.ie.lehigh.edu/~ted</a><br>
<br>
<br>
<br>
<br>
------------------------------<br>
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End of Dip Digest, Vol 14, Issue 3<br>
**********************************<br>
</blockquote></div><br></div></div>