<div>That's exactly what I was looking for, thanks!</div>
<div> </div>
<div>Greg<br></div>
<div class="gmail_quote">On Wed, Sep 26, 2012 at 12:00 PM, <span dir="ltr"><<a href="mailto:clp-request@list.coin-or.org" target="_blank">clp-request@list.coin-or.org</a>></span> wrote:<br>
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<br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of Clp digest..."<br><br><br>Today's Topics:<br><br> 1. Re: specifying random number seed with CLP (John Forrest)<br>
<br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Wed, 26 Sep 2012 13:15:17 +0100<br>From: John Forrest <<a href="mailto:john.forrest@fastercoin.com">john.forrest@fastercoin.com</a>><br>
To: <a href="mailto:clp@list.coin-or.org">clp@list.coin-or.org</a><br>Subject: Re: [Clp] specifying random number seed with CLP<br>Message-ID: <<a href="mailto:5062F1D5.3000406@fastercoin.com">5062F1D5.3000406@fastercoin.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"<br><br>Greg,<br><br>In Clp/trunk I have added randomSeed which allows you to set an initial<br>seed. If set to 0 then uses time of day to generate a random seed.<br>
<br>If you want to use Clp/stable then it should be easy to patch if you<br>look at differences in 1883. CbcOrClpParam.?pp have changed and I also<br>had to fix a benign "bug" which stopped changes being made (ClpModel.cpp)<br>
<br>I attach a file showing three runs. Is that what you wanted?<br><br>John Forrest<br><br><br><br>On 24/09/12 22:12, Greg Gruber wrote:<br>> Hello,<br>> I am using the clp.exe command line tool to solve a model that I have<br>
> coded with GLPK. It is working fine, but I would like to make<br>> successive runs using a random numbers to change some parameters.<br>> With glpsol I can do the following:<br>> glpsol --seed ? -m foo.mod -d foo.dat<br>
> and a different random number seed will be used each time. When I<br>> solve using clp, I do the following:<br>> clp foo.mod%foo.dat -solve<br>> But I get the same result each time, because it is using the same<br>
> random number seed.<br>> Is there a way to force a new seed?<br>> Thanks,<br>> Greg Gruber<br>><br>><br>> _______________________________________________<br>> Clp mailing list<br>> <a href="mailto:Clp@list.coin-or.org">Clp@list.coin-or.org</a><br>
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<br><br>End of Clp Digest, Vol 91, Issue 7<br>**********************************<br></blockquote></div><br><br clear="all"><br>-- <br>
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