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Racecar problem convergence regression. #750

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robfalck opened this issue May 6, 2022 · 0 comments · Fixed by #752
Closed
1 of 4 tasks

Racecar problem convergence regression. #750

robfalck opened this issue May 6, 2022 · 0 comments · Fixed by #752
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robfalck commented May 6, 2022

Issue Type

  • Bug
  • Enhancement
  • Docs
  • Miscellaneous

Description

The racecar benchmarks and test case show slow convergence after 1.5.0, with the restoration phase of IPOPT failing.
It appears that setting p.driver.opt_settings['bound_mult_init_method'] = 'mu-based' will fix the issue.
There are no linear boundary and path constraints that should be affecting this behavior.

Example

See `examples/racecar/doc/test_doc_racecar.py'.

Environment

Dymos 1.5.0
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Updated optimizer settings to improve convergence of the racecar example. robfalck/dymos
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