Issues

• COBYLA: bound guard after trstlp reflects the step through a lower bound (sign error)

  stevengj/nlopt#662 · Filter by author keithjl-forma opened on Nov 7, 2026

• Poor performance compared to new SciPy SLSQP implementation.

  stevengj/nlopt#649 · Filter by author yuyichao opened on Oct 16, 2026

• Quadruple precision version of NLOPT?

  stevengj/nlopt#638 · Filter by author alexmassen-hane opened on Apr 8, 2026
  1

• Add a cython interface

  stevengj/nlopt#636 · Filter by author JasmineTC opened on Jan 25, 2026
  4

• The product of two integers can overflow in L-BFGS

  bug
  stevengj/nlopt#632 · Filter by author junzi-taotao opened on Oct 29, 2025
  2

• The CCSAQ algorithm seems to be dependent on the order of constraints.

  stevengj/nlopt#631 · Filter by author johniaan opened on Oct 16, 2025

• NLopt on Windows points to nothing

  stevengj/nlopt#630 · Filter by author bbd666 opened on Oct 15, 2025

• BOBYQA violates bounds constraints by roundoff error

  bug
  stevengj/nlopt#625 · Filter by author JasmineTC opened on Sep 16, 2025
  2

• Documentation at https://nlopt.readthedocs.io/en/latest/ outdated

  stevengj/nlopt#619 · Filter by author jfgrimm opened on Jun 9, 2025

• Auglag using Cobyla for constraints not working

  stevengj/nlopt#617 · Filter by author tmalewic opened on May 23, 2025
  2

• [COBYLA/BOBYQA] Address sanitizer issue

  stevengj/nlopt#611 · Filter by author astamm opened on Apr 23, 2025
  1

• Implement Shubert-Piyavskii and GSS for deterministic global optimization

  stevengj/nlopt#610 · Filter by author Luis-Varona opened on Apr 20, 2025
  9

• using nlopt c++ in windows MSVC with BFGS algorithm

  stevengj/nlopt#609 · Filter by author jbensabat opened on Apr 19, 2025

• [R wrapper] Compiled code should not call entry points which might terminate R

  stevengj/nlopt#604 · Filter by author astamm opened on Mar 25, 2025

• cobyla return value has changed from 2.7

  stevengj/nlopt#601 · Filter by author rlph50 opened on Mar 15, 2025
  2

• RfC: New C rewrite of SLSQP in SciPy

  stevengj/nlopt#600 · Filter by author ilayn opened on Mar 11, 2025
  6

• Clarification of potential bug in ISRES implementation

  stevengj/nlopt#590 · Filter by author kramawa opened on Feb 13, 2025
  4

• Increase frequency of Sbplx change without triggering early termination

  stevengj/nlopt#577 · Filter by author A-J-F-Mackintosh opened on Nov 27, 2024
  1

• SLSQP roundoff-limited with redundant equality constraints

  stevengj/nlopt#567 · Filter by author danlugli opened on Sep 17, 2024
  4

• Support generic (double-sided) inequality constraints

  enhancement
  stevengj/nlopt#540 · Filter by author charelstoncrabb opened on Dec 24, 2023
  1

• Matlab version build doesn't support Algorithm-specific parameters

  stevengj/nlopt#525 · Filter by author HappyZhu99 opened on Aug 7, 2023

• Enabling some compiler warnings produce many that could be fixed

  stevengj/nlopt#519 · Filter by author Jaaaky opened on Jul 2, 2023
  6

• add_ Inequality_ Constraint: Prevent user misuse！

  stevengj/nlopt#517 · Filter by author xianglunkai opened on Jun 26, 2023

• Retrieving last parameter value from Python after roundoff limit

  stevengj/nlopt#513 · Filter by author wbthomason opened on Jun 1, 2023
  1

• The old implementation of COBYLA is buggy and challenging to maintain. Switch to the PRIMA implementation?

  stevengj/nlopt#501 · Filter by author zaikunzhang opened on Mar 9, 2023
  2