<html>

<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered)">
<style>
<!--
 /* Font Definitions */
 @font-face
        {font-family:Courier;
        panose-1:2 7 4 9 2 2 5 2 4 4;}
@font-face
        {font-family:Wingdings;
        panose-1:5 0 0 0 0 0 0 0 0 0;}
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
p.MsoAutoSig, li.MsoAutoSig, div.MsoAutoSig
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
span.EmailStyle18
        {font-family:Arial;
        color:black;
        font-weight:normal;
        font-style:normal;
        text-decoration:none none;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
        {page:Section1;}
 /* List Definitions */
 ol
        {margin-bottom:0in;}
ul
        {margin-bottom:0in;}
-->
</style>

</head>

<body lang=EN-US link=blue vlink=purple>

<div class=Section1>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Hi Guys,</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>We&#8217;re using the excellent C++
version of ipopt (3.0.0) which requires us to now code our own quasi-Newton
scheme.&nbsp; We&#8217;re noticing different behavior for various combinations
of BFGS and SR1 for our particular small problem set so we wanted a more
objective analysis.&nbsp; We decided to test our implementation on the CUTEr
set, since this interface seems to be supported with the ipopt
distribution.&nbsp; But we&#8217;re having some problems with
ipopt-3.0.0/Apps/CUTErInterface.&nbsp; First, we installed SIF and CUTEr and
tested it with &#8216;sdgen KISSING2&#8217;, which works as expected.&nbsp; Then
we installed ipopt with a pretty standard configuration, and tested the library
libipopt.a on several example problems. &nbsp;Then, in
ipopt-3.0.0/Apps/CUTErInterface (we&#8217;ve already built ipopt), we:</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&gt; make (seems to work)</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>if test -z &quot;$MYCUTER&quot; -o -z &quot;$CUTER&quot;;
then \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; touch ipoma.f; \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>else \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; sed &quot;/#{sizing}/r $MYCUTER/double/config/tools.siz&quot;
CUTErInterface.f | sed -f $MYCUTER/double/config/cast.sed &gt; ipoma.f; \fi</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span lang=IT
style='font-size:10.0pt;font-family:Arial;color:blue'>.../gcc/3.1/bin/g++&nbsp;&nbsp;
-c -o ipoma.o ipoma.f</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>rm -f libdummy.a</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>ar crv libdummy.a ipoma.o</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>a - ipoma.o</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>ranlib libdummy.a</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&gt; make cuter (seems to work)</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>sed -f $MYCUTER/double/config/script.sed
ipo.pro &gt; ipo</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>chmod a+x ipo</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>sed -f $MYCUTER/double/config/script.sed
sdipo.pro &gt; sdipo</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>chmod a+x sdipo</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>if test -z &quot;$MYCUTER&quot; -o -z &quot;$CUTER&quot;;
then \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; echo CUTEr environment variables
not set - cannot install ipoma.f; \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>else \</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; echo &quot;-L&#8230;/ipopt-3.0.0/install/lib
-lipopt&nbsp; -lg2c&quot; &gt;$MYCUTER/double/lib/ipo.liblist ;\</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; cp ipoma.o &#8230;/CUTEr.large.pc.lnx.g77/double/bin/ipoma.o;
\</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; cp ipo &#8230;/CUTEr.large.pc.lnx.g77/bin/ipo
;\</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp; cp sdipo &#8230;/CUTEr.large.pc.lnx.g77/bin/sdipo
;\</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>fi</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&gt; ./sdipo KISSING2 </span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;Problem name: KISSING2</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;Double precision version will be
formed.</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;The objective function
uses&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 nonlinear group</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;There
are&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 625 nonlinear inequality constraints</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;There
are&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 94 free variables</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;There
are&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6 fixed variables</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>.../CUTEr.large.pc.lnx.g77/double/bin/linpac.o:
In function `dcopy_':.../CUTEr.large.pc.lnx.g77/double/bin/linpac.o(.text+0x0):
multiple definition of `dcopy_'</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>.../ipopt-3.0.0/install/lib/libipopt.a(dcopy.o)(.text+0x0):
first defined here</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>/usr/bin/ld: Warning: size of symbol `dcopy_'
changed from 618 to 373 in .../CUTEr.large.pc.lnx.g77/double/bin/linpac.o</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>.../CUTEr.large.pc.lnx.g77/double/bin/linpac.o:
In function `ddot_':</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>.../CUTEr.large.pc.lnx.g77/double/bin/linpac.o(.text+0x178):
multiple definition of `ddot_'</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>.../ipopt-3.0.0/install/lib/libipopt.a(ddot.o)(.text+0x0):
first defined here</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>/usr/bin/ld: Warning: size of symbol `ddot_'
changed from 605 to 312 in .../CUTEr.large.pc.lnx.g77/double/bin/linpac.o</span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>And so on.&nbsp; Seems there might be
some doubly defined BLAS symbols in libpac.o and libipopt.a? &nbsp;Have you
guys run into this problem before, or are we doing something wrong?</span></font></p>

<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>&nbsp;</span></font></p>

<p class=MsoAutoSig><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>--Ivan.</span></font></p>

<p class=MsoAutoSig><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>&nbsp;</span></font></p>

<p class=MsoAutoSig><font size=2 color=black face=Courier><span
style='font-size:10.0pt;font-family:Courier;color:black'>----------------------------</span></font></p>

<p class=MsoAutoSig><font size=2 color=black face=Courier><span
style='font-size:10.0pt;font-family:Courier;color:black'>Ivan B. Oliveira</span></font></p>

<p class=MsoAutoSig><font size=2 color=black face=Courier><span lang=PT-BR
style='font-size:10.0pt;font-family:Courier;color:black'>SC12-205</span></font></p>

<p class=MsoAutoSig><font size=2 color=black face=Courier><span
style='font-size:10.0pt;font-family:Courier;color:black'>(408)765-0584</span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>&nbsp;</span></font></p>

</div>

</body>

</html>