<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>FYI. The following seems to work. Feel free to add to some
CoinUtils code or maybe there should be a repository for "scripts"?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>// to build:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>// g++ main.cpp -L ~/COIN/coin-Decomp/build-g/lib -I
~/COIN/coin-Decomp/build-g\<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>/include/coin -lCoinUtils<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>// mps to matrix-market format<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>// http://math.nist.gov/MatrixMarket/formats.html#mtx<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>#include "CoinMpsIO.hpp"<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>#include "CoinPackedMatrix.hpp"<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>#include <string><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>#include <fstream><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>#include <iomanip><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>using namespace std;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>int main(int argc, char ** argv){<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> CoinMpsIO mps;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> mps.readMps(argv[1]);<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const CoinPackedMatrix * mat = mps.getMatrixByCol();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int nCols = mat->getNumCols();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int nRows = mat->getNumRows();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int nEls = mat->getNumElements();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const double * els = mat->getElements();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int * ind = mat->getIndices();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int * beg = mat->getVectorStarts();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int * len = mat->getVectorLengths();<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> string mmName = (string)(argv[1]) + ".mtx";<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> ofstream os(mmName.c_str());<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << "%%MatrixMarket matrix coordinate real
general" << endl;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << "%From mps file: " << argv[1]
<< endl;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << nRows << " " << nCols
<< " " << nEls << endl;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> int lenI = 0;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const int * indI = NULL;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> const double * elsI = NULL;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << setiosflags(ios::fixed|ios::showpoint);<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << setprecision(7);<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> int i,k;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> for(i = 0; i < nCols; i++){<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> lenI = len[i];<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> indI = ind + beg[i];<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> elsI = els + beg[i];<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> for(k = 0; k < lenI; k++){<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> os << indI[k]+1 << " " <<
i+1 << " " << elsI[k] << endl;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> }<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> }<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
coin-discuss-bounces@list.coin-or.org
[mailto:coin-discuss-bounces@list.coin-or.org] <b>On Behalf Of </b>magh<br>
<b>Sent:</b> Thursday, September 24, 2009 11:40 AM<br>
<b>To:</b> coin-discuss@list.coin-or.org<br>
<b>Subject:</b> Re: [Coin-discuss] bringing a matrix into block angular form<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>This looks fairly easy to use
so I was going to try it:<br>
<a href="http://www.math.uu.nl/people/bisseling/Mondriaan/">http://www.math.uu.nl/people/bisseling/Mondriaan/</a><br>
<br>
It wants this format:<br>
<a href="http://math.nist.gov/MatrixMarket/formats.html#mtx">http://math.nist.gov/MatrixMarket/formats.html#mtx</a><br>
<br>
Has anyone written a MPS to MatrixMarket format convertor? I just figured I'd
ask before I write it - I think it will be easy.<br>
<br>
Thanks,<br>
Matt<br>
<br>
<br>
<o:p></o:p></p>
<div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Has anyone used COIN together with some package (MeTiS? or
any other?) to bring a matrix into block angular form? I am looking to read in
an MPS file - into OSI or CoinMpsIO or something like this, run one of these
heuristic methods and then return the rows/cols in each block. <br>
<br>
Thanks,<br>
Matt<o:p></o:p></p>
</blockquote>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</body>
</html>