Main authors:

Andreas Waechter, project leader (IBM)
Carl Laird (IBM, Carnegie Mellon University)


Contributors:

- Yoshiaki Kawajiri (Carnegie Mellon Univeristy):
  First version of Latex documentation file

  Docs/documentation.tex

- Olaf Schenk (University of Basel):
  Modifications to the PARDISO interface in the files

  Algorithm/LinearSolvers/IpPardisoSolverInterface.cpp
  Algorithm/LinearSolvers/IpPardisoSolverInterface.hpp

- Michael Hagemann (University of Basel):
  MA57 interface

  Algorithm/LinearSolvers/IpMa57SolverInterface.cpp
  Algorithm/LinearSolvers/IpMa57SolverInterface.hpp

- Damien Hocking (KBC Advanced Technologies)
  MUMPS interface

  Algorithm/LinearSolvers/IpMumpsSolverInterface.cpp
  Algorithm/LinearSolvers/IpMumpsSolverInterface.hpp

- Jon Lee (IBM Research)
  example nl file (writting by hand) for unitTest

  Test/mytoy.nl

- Peter Carbonetto (University of British Columbia)
  Matlab interface

  [removed from Ipopt source as unmaintained]

- Rafael de Pelegrini Soares (VRTech Industrial Technologies)
  and Tong Kewei (Beihang University, Beijing)
  Java interface files

  contrib/JavaInterface
  src/Interfaces/IpStdJInterface.cpp
  src/Interfaces/Ipopt.java
  examples/hs071_java/HS071.java
  examples/ScalableProblems_java/*.java

- Lifeng Chen/Zaiwen Wen (Columbia University)
  Changes and additions to the implementation of the Chen-Goldfarb
    penalty function algorithm

  src/contrib/CGPenalty/IpCGPenaltyCq.cpp
  src/contrib/CGPenalty/IpCGPenaltyCq.hpp
  src/contrib/CGPenalty/IpCGPenaltyData.cpp
  src/contrib/CGPenalty/IpCGPenaltyData.hpp
  src/contrib/CGPenalty/IpCGPenaltyLSAcceptor.cpp
  src/contrib/CGPenalty/IpCGPenaltyLSAcceptor.hpp
  src/contrib/CGPenalty/IpCGPenaltyRegOp.cpp
  src/contrib/CGPenalty/IpCGPenaltyRegOp.hpp
  src/contrib/CGPenalty/IpCGPerturbationHandler.cpp
  src/contrib/CGPenalty/IpCGPerturbationHandler.hpp
  src/contrib/CGPenalty/IpCGSearchDirCalc.cpp
  src/contrib/CGPenalty/IpCGSearchDirCalc.hpp
  src/contrib/CGPenalty/IpPiecewisePenalty.cpp
  src/contrib/CGPenalty/IpPiecewisePenalty.hpp

- Stefan Vigerske (GAMS)
  Dynamic loading of linear solver shared libraries

  src/contrib/LinearSolverLoader/HSLLoader.c
  src/contrib/LinearSolverLoader/HSLLoader.h
  src/contrib/LinearSolverLoader/LibraryHandler.c
  src/contrib/LinearSolverLoader/LibraryHandler.h
  src/contrib/LinearSolverLoader/PardisoLoader.c
  src/contrib/LinearSolverLoader/PardisoLoader.h

- Marcel Roelofs (AIMMS)
  MSVC project files for Intel Fortran compiler, creating a DLL

  [removed from Ipopt source as unmaintained]

- Jonathan Hogg (STFC Rutherford Appleton Laboratory)
  MA77 interface

  src/Algorithm/LinearSolvers/hsl_ma77d.h
  src/Algorithm/LinearSolvers/IpMa77SolverInterface.hpp
  src/Algorithm/LinearSolvers/IpMa77SolverInterface.cpp

  MA86 interface

  src/Algorithm/LinearSolvers/hsl_ma86d.h
  src/Algorithm/LinearSolvers/hsl_mc68i.h
  src/Algorithm/LinearSolvers/IpMa86SolverInterface.hpp
  src/Algorithm/LinearSolvers/IpMa86SolverInterface.cpp

  MA97 interface

  src/Algorithm/LinearSolvers/hsl_ma97d.h
  src/Algorithm/LinearSolvers/IpMa97SolverInterface.hpp
  src/Algorithm/LinearSolvers/IpMa97SolverInterface.cpp

- Hans Pirnay (RWTH Aachen)
  Rodrigo Lopez-Negrete (Carnegie Mellon University)

  Sensitivity Based on IPOPT

  contrib/sIPOPT  (formerly called contrib/AsNMPC)

- Jelmer Ypma (University College London)
  R interface with examples, all files in directory (and subdirectory of)

  contrib/RInterface
  
- Tony Kelman (Berkeley)
  improvements to Matlab interface
  
  Ipopt/contrib/MatlabInterface

- Gabriel Hackebeil
  improved use compound component spaces
  
- Nai-Yuan Chiang and Victor M. Zavala Tejeda (Argonne National Laboratory)
  inertia free curvature test in solution of primal-dual system (full approach)

- Brad Bell
  recursive NLP example
  
  examples/recursive_nlp/recursive_nlp.cpp

Contributors of code that is no longer included in Ipopt distribution:

- Yifan Hu (Wolfram): Contributed TAUCS interface, implemented in the files

  PDSystemImpl/PDFullSpace/IpTAUCSSolverInterface.hpp
  PDSystemImpl/PDFullSpace/IpTAUCSSolverInterface.cpp

  [These files have been removed, since TAUCS is not supported]