[Ipopt-tickets] [Ipopt] #213: Repeatability of optimization runs with IPOPT

[Ipopt]

#213: Repeatability of optimization runs with IPOPT
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  Reporter:  florian.saupe  |      Owner:  stefan
      Type:  defect         |     Status:  assigned
  Priority:  normal         |  Component:  Ipopt
   Version:  3.11           |   Severity:  normal
Resolution:                 |   Keywords:  repeatability
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Comment (by florian.saupe):

 Replying to [comment:5 kelman]:
 > The set of mex files here http://www.coin-
 or.org/download/binary/Ipopt/Ipopt-3.11.0-linux64mac64win32win64-matlabmexfiles.zip
 uses Netlib BLAS/LAPACK, as long as you use linear_solver mumps.

 Thank you for the quick bug fix. While the mex files you provided yield
 deterministic and fast calculations with mumps, they do no not seem to
 optimize well. The obtained optimum is 20 times worse than before. Could
 this be expected? I always terminate after a fixed low number of
 iterations - does your bugfix change the number of iterations needed?

-- 
Ticket URL: <https://projects.coin-or.org/Ipopt/ticket/213#comment:6>
Ipopt <http://projects.coin-or.org/Ipopt>
Interior-point optimizer for nonlinear programs.