<div dir="ltr"><div>Dear All,</div><div><br></div><div>I am trying to solve a problem using MA57 on windows 7 64bit. It stop with some error which I do not understand. Would you kindly shed some light in this matter?</div>
<div><br></div><div><br></div><div>Best regards,</div><div><br></div><div>Novalio Daratha</div><div><br></div><div>Ipopt 3.11.1:</div><div><br></div><div>******************************************************************************</div>
<div>This program contains Ipopt, a library for large-scale nonlinear optimization.</div><div> Ipopt is released as open source code under the Eclipse Public License (EPL).</div><div> For more information visit <a href="http://projects.coin-or.org/Ipopt">http://projects.coin-or.org/Ipopt</a></div>
<div>******************************************************************************</div><div><br></div><div>NOTE: You are using Ipopt by default with the MUMPS linear solver.</div><div> Other linear solvers might be more efficient (see Ipopt documentation).</div>
<div><br></div><div><br></div><div>This is Ipopt version 3.11.1, running with linear solver ma57.</div><div><br></div><div>Number of nonzeros in equality constraint Jacobian...: 2138000</div><div>Number of nonzeros in inequality constraint Jacobian.: 563200</div>
<div>Number of nonzeros in Lagrangian Hessian.............: 804988</div><div><br></div><div><br></div><div>**** Error return from MA57AD **** INFO(1) =-15</div><div>LKEEP has value 18822943</div><div>Should be at least **********</div>
<div>*** Error from MA57AD *** INFO(0) = -15</div><div>**** Error return from MA57BD **** INFO(1) =-15</div><div>LKEEP has value 18822943</div><div>Should be at least **********</div><div>Error in MA57BD: -15</div>
<div>Total number of variables............................: 580475</div><div> variables with only lower bounds: 0</div><div> variables with lower and upper bounds: 14875</div>
<div> variables with only upper bounds: 0</div><div>Total number of equality constraints.................: 579200</div><div>Total number of inequality constraints...............: 230800</div>
<div> inequality constraints with only lower bounds: 0</div><div> inequality constraints with lower and upper bounds: 206000</div><div> inequality constraints with only upper bounds: 24800</div>
<div><br></div><div>iter objective inf_pr inf_du lg(mu) ||d|| lg(rg) alpha_du alpha_pr ls</div><div> 0 2.9273530e-002 7.21e-002 1.00e+000 -1.0 0.00e+000 - 0.00e+000 0.00e+000 0</div><div>**** Error return from MA57BD **** INFO(1) =-15</div>
<div>LKEEP has value 18822943</div><div>Should be at least **********</div><div>Error in MA57BD: -15</div><div>WARNING: Problem in step computation; switching to emergency mode.</div><div> 1r2.9273530e-002 7.21e-002 9.99e+002 -1.0 0.00e+000 - 0.00e+000 0.00e+000R 1</div>
<div>**** Error return from MA57BD **** INFO(1) =-15</div><div>LKEEP has value 18822943</div><div>Should be at least **********</div><div>Error in MA57BD: -15</div><div>WARNING: Problem in step computation; switching to emergency mode.</div>
<div>Restoration phase is called at point that is almost feasible,</div><div> with constraint violation 0.000000e+000. Abort.</div><div>Restoration phase in the restoration phase failed.</div><div><br></div><div>Number of Iterations....: 1</div>
<div><br></div><div> (scaled) (unscaled)</div><div>Objective...............: 2.9273529678833447e-002 2.9273529678833447e-002</div><div>Dual infeasibility......: 1.0000000000000000e+000 1.0000000000000000e+000</div>
<div>Constraint violation....: 7.2080651651646593e-002 7.2080651651646593e-002</div><div>Complementarity.........: 2.0000000199999999e+000 2.0000000199999999e+000</div><div>Overall NLP error.......: 2.0000000199999999e+000 2.0000000199999999e+000</div>
<div><br></div><div><br></div><div>Number of objective function evaluations = 2</div><div>Number of objective gradient evaluations = 2</div><div>Number of equality constraint evaluations = 2</div>
<div>Number of inequality constraint evaluations = 2</div><div>Number of equality constraint Jacobian evaluations = 2</div><div>Number of inequality constraint Jacobian evaluations = 2</div><div>Number of Lagrangian Hessian evaluations = 2</div>
<div>Total CPU secs in IPOPT (w/o function evaluations) = 0.874</div><div>Total CPU secs in NLP function evaluations = 0.485</div><div><br></div><div>EXIT: Restoration Failed!</div><div><br></div><div>
Ipopt 3.11.1: Restoration Phase Failed.</div><div><br></div></div>