[Ipopt] Cannot used MA57 from bonmin

[Stefan Vigerske]

Hi,

The note "You are using Ipopt by default with the MUMPS linear solver." 
only refers to the default Ipopt settings, not necessarily to the 
actually used ones. In your case, Ipopt in Bonmin should still use ma57.
You can set print_user_options option to see which options are used:
http://www.coin-or.org/Ipopt/documentation/node40.html#SECTION000111020000000000000

With the latest Ipopt release, the irritating message has been modified.

Stefan

On 11/12/2013 07:10 AM, Novalio Daratha wrote:
> Dear All,
>
> I can use MA57 when I run ipopt. However, when I run bonmin,  the ipopt
> still used MUMPS.
>
>
> Bonmin 1.5.2 using Cbc 2.7.6 and Ipopt 3.10.2
> bonmin: bonmin.algorithm B-BB
> linear_solver "ma57"
>
>
> ******************************************************************************
> This program contains Ipopt, a library for large-scale nonlinear
> optimization.
>   Ipopt is released as open source code under the Eclipse Public License
> (EPL).
>           For more information visit http://projects.coin-or.org/Ipopt
> ******************************************************************************
>
> NOTE: You are using Ipopt by default with the MUMPS linear solver.
>        Other linear solvers might be more efficient (see Ipopt
> documentation).
>
>
> NLP0012I
>                Num      Status      Obj             It       time
>        Location
> NLP0014I             1         OPT 0.010000662        5 0.109
>
>
> Would you kindly give some light in this matter?
>
>
> Thanking You,
>
> Novalio Daratha
>
>
>
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