<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body text="#000000" bgcolor="#ffffff">
<div class="moz-text-html" lang="x-western">
<div class="moz-text-flowed"
style="font-family: -moz-fixed; font-size: 12px;" lang="x-western">Hello
<br>
<br>
I am using IpOpt-3.7.0, Matlab R2010A, compiled with gcc,g++,gfortran
version 4.3.2.
<br>
<br>
I have the following problem when using the Matlab interface whenever I
set hessian_approximation = limited_memory. For example in the included
"examplehs051.m" I encounter the following problem:
<br>
<br>
========
<br>
>> examplehs051
<br>
This is Ipopt version 3.7.0, running with linear solver ma27.
<br>
<br>
Number of nonzeros in equality constraint Jacobian...: 7
<br>
Number of nonzeros in inequality constraint Jacobian.: 0
<br>
Number of nonzeros in Lagrangian Hessian.............: 0
<br>
<br>
** On entry to DPOTRF parameter number 4 had an illegal value
<br>
Erase is control-H (^H).
<br>
========
<br>
<br>
The same is true for all included matlab examples whenever I change to
include "options.ipopt.hessian_approximation = 'limited-memory';" I
checked the c-examples in Ipopt/examples/ which work fine for both
settings. I also compiled a version of the library with the mumps
solver only instead of the HSL package but encounter the very same
behaviour.
I suspect that problem is caused by blas but since the
command line version works, I am unsure how to resolve this problem.<br>
<br>
Best Regards, Peter
<br>
<br>
<br>
</div>
</div>
</body>
</html>