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Hi Juan Carlos,<br>
<br>
Many convergence problems are due to incorrect derivatives. Did you
run the derivative checker
(<a class="moz-txt-link-freetext" href="http://www.coin-or.org/Ipopt/documentation/node53.html">http://www.coin-or.org/Ipopt/documentation/node53.html</a>)?<br>
<br>
Andreas<br>
<br>
On 01/04/2012 03:06 PM, Juan Carlos Lopez Alfonso wrote:
<blockquote
cite="mid:CAARD0fDDnUHvC+Ux9TqPNAbd0JxdqgcymOFz5N+n84O8ZF_2TA@mail.gmail.com"
type="cite">
<div>Hi Edson:</div>
<div><br>
</div>
<div>Thank you for your answer, It is very useful. Please, let me
explain in more details my problem. I am working in a very big
optimization problem, but in order to simplify I have created a
reduced example for test in my laptop. I have implemented my
problem in Matlab and IPopt with C++ for checking the results. I
have compared the results obtained for each method
(functional/constraint evaluation, gradient of the
functional/constraint and hessian of the functional) for matlab
and Ipopt, which are the same. However, in matlab the minimum of
the functional is achieved in 20 iterations, while in C++ the
iterations do not converge and execute a lot of iterations.</div>
<div><br>
</div>
<div>Please, could you give me any suggestion? </div>
<div>Best regrads </div>
<div>Juan Carlos</div>
<br>
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