[Ipopt-tickets] [Ipopt] #211: IPOPT option, 'tol'

[Ipopt]

#211: IPOPT option, 'tol'
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Reporter:  jd0331  |      Owner:  ipopt-team
    Type:  defect  |     Status:  new
Priority:  normal  |  Component:  Ipopt
 Version:  3.11    |   Severity:  normal
Keywords:          |
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 Hi,

 I have a question about a IPOPT option, 'tol'.
 I read reference for this option, saying:

 The algorithm terminates successfully, if the (scaled) NLP error becomes
 smaller than this value, and if the (absolute) criteria according to "dual
 inf tol","primal inf tol", and "cmpl inf tol" are met.

 Then, what is the definition of the NLP error?
 In fact, I was looking for explanation of the criterion that terminates
 iteration when using IPOPT with this option, but was not able to find the
 specific explanation.

 Thanks,
 Jd.

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Ticket URL: <https://projects.coin-or.org/ticket/211>
Ipopt <http://projects.coin-or.org/Ipopt>
Interior-point optimizer for nonlinear programs.