[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):

 > Things you can try:
 > Use the linear solver MUMPS rather than MA57 (via ipoptset)
 > Set the processor affinity of MATLAB to 1 processor only (via task
 manager)

 I tried this but I still get no deterministic solution.

 > Next best solution - I can compile a version of IPOPT against Netlib
 BLAS/LAPACK (not threaded) and sequential MUMPS, and we can see if that
 helps? Definitely won't be as fast, but might be deterministic... Let me
 know if you want to try this.

 I would gladly try this!
 Thank you!

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Ticket URL: <https://projects.coin-or.org/Ipopt/ticket/213#comment:4>
Ipopt <http://projects.coin-or.org/Ipopt>
Interior-point optimizer for nonlinear programs.