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<div class="moz-cite-prefix">Empty problem warning is fine - just
means clp could solve problem without doing the lp.<br>
<br>
It looked at the model and saw that the optimal solution had to be
to set variables to zero - so fixed all variables and deleted all
rows.<br>
<br>
So<br>
<br>
clp opt_prod_mix.mps -solve -solution $<br>
<br>
$ will just print solutio, x.sol will write solution to x.sol<br>
<br>
John Forrest<br>
On 16/01/15 07:01, haris iqbal wrote:<br>
</div>
<blockquote
cite="mid:CAE_WKMyVdWGfZrC0FD3rNzXgrktcOyRc9OApn9Rjp0r07KwMZA@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_quote">---------- Forwarded message ----------<br>
From: <b class="gmail_sendername">haris iqbal</b> <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:haris.phnx@gmail.com">haris.phnx@gmail.com</a>></span><br>
Date: Fri, Jan 16, 2015 at 12:31 PM<br>
Subject: Re: [Clp] problem with coin-or lp solver library<br>
To: Babak Moazzez <<a moz-do-not-send="true"
href="mailto:bmoazzez@ucdavis.edu">bmoazzez@ucdavis.edu</a>>,
<a moz-do-not-send="true" href="mailto:deinst@gmail.com">deinst@gmail.com</a><br>
<br>
<br>
<div dir="ltr">
<div>
<div>what i am doing is solving a 2 variable lp problem by
writing a .mps file and then running it through the
terminal by<br>
<br>
</div>
clp filename.mps<br>
<br>
</div>
i am attaching the .mps file also.. this problem gives the
correct answer using other tool but gives an empty problem
warning using clp.<br>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Jan 16, 2015 at 6:54
AM, Babak Moazzez <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:bmoazzez@ucdavis.edu" target="_blank">bmoazzez@ucdavis.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">If you are using clp api, use the
command</p>
<p dir="ltr">solu results.txt</p>
<p dir="ltr">Clp will write the solution to a text
file named results.txt</p>
<div class="gmail_quote">
<div>
<div>On Jan 15, 2015 6:05 AM, "haris iqbal" <<a
moz-do-not-send="true"
href="mailto:haris.phnx@gmail.com"
target="_blank">haris.phnx@gmail.com</a>>
wrote:<br type="attribution">
</div>
</div>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<div>
<div dir="ltr">
<div>
<div>
<div>Hello,<br>
</div>
I am trying to solve some lp problems
using the clp library. But i am facing
some problems.<br>
<br>
</div>
1) The optimal solution that i am
getting is just the value.. is there a
way to get the value of the co-ordinates
also (value of the variables for that
optimal solution)..?<br>
<br>
</div>
2) The problems gives the empty problem
warning for some valid solution.. those
problem i have checked using some other lp
problem solver, and they were all valid..<br>
</div>
<br>
</div>
</div>
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</span></blockquote>
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</blockquote>
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<br>
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<br>
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