# [Ipopt] Problem Using MA57 on windows 7 64 bit

Novalio Daratha novatha at gmail.com
Tue Nov 26 05:19:11 EST 2013

```Dear All,

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?

Best regards,

Novalio Daratha

Ipopt 3.11.1:

******************************************************************************
This program contains Ipopt, a library for large-scale nonlinear
optimization.
Ipopt is released as open source code under the Eclipse Public License
(EPL).
******************************************************************************

NOTE: You are using Ipopt by default with the MUMPS linear solver.
Other linear solvers might be more efficient (see Ipopt
documentation).

This is Ipopt version 3.11.1, running with linear solver ma57.

Number of nonzeros in equality constraint Jacobian...:  2138000
Number of nonzeros in inequality constraint Jacobian.:   563200
Number of nonzeros in Lagrangian Hessian.............:   804988

**** Error return from MA57AD ****  INFO(1) =-15
LKEEP has value      18822943
Should be at least **********
*** Error from MA57AD *** INFO(0) = -15
**** Error return from MA57BD ****  INFO(1) =-15
LKEEP has value      18822943
Should be at least **********
Error in MA57BD:  -15
Total number of variables............................:   580475
variables with only lower bounds:        0
variables with lower and upper bounds:    14875
variables with only upper bounds:        0
Total number of equality constraints.................:   579200
Total number of inequality constraints...............:   230800
inequality constraints with only lower bounds:        0
inequality constraints with lower and upper bounds:   206000
inequality constraints with only upper bounds:    24800

iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du
alpha_pr  ls
0 2.9273530e-002 7.21e-002 1.00e+000  -1.0 0.00e+000    -  0.00e+000
0.00e+000   0
**** Error return from MA57BD ****  INFO(1) =-15
LKEEP has value      18822943
Should be at least **********
Error in MA57BD:  -15
WARNING: Problem in step computation; switching to emergency mode.
1r2.9273530e-002 7.21e-002 9.99e+002  -1.0 0.00e+000    -  0.00e+000
0.00e+000R  1
**** Error return from MA57BD ****  INFO(1) =-15
LKEEP has value      18822943
Should be at least **********
Error in MA57BD:  -15
WARNING: Problem in step computation; switching to emergency mode.
Restoration phase is called at point that is almost feasible,
with constraint violation 0.000000e+000. Abort.
Restoration phase in the restoration phase failed.

Number of Iterations....: 1

(scaled)                 (unscaled)
Objective...............:  2.9273529678833447e-002   2.9273529678833447e-002
Dual infeasibility......:  1.0000000000000000e+000   1.0000000000000000e+000
Constraint violation....:  7.2080651651646593e-002   7.2080651651646593e-002
Complementarity.........:  2.0000000199999999e+000   2.0000000199999999e+000
Overall NLP error.......:  2.0000000199999999e+000   2.0000000199999999e+000

Number of objective function evaluations             = 2
Number of objective gradient evaluations             = 2
Number of equality constraint evaluations            = 2
Number of inequality constraint evaluations          = 2
Number of equality constraint Jacobian evaluations   = 2
Number of inequality constraint Jacobian evaluations = 2
Number of Lagrangian Hessian evaluations             = 2
Total CPU secs in IPOPT (w/o function evaluations)   =      0.874
Total CPU secs in NLP function evaluations           =      0.485

EXIT: Restoration Failed!

Ipopt 3.11.1: Restoration Phase Failed.
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