1: #ifndef PETSCTAOLINESEARCH_H
  2: #define PETSCTAOLINESEARCH_H
  3:  #include <petscvec.h>

  5: typedef struct _p_TaoLineSearch* TaoLineSearch;
  6: typedef enum {
  7:     TAOLINESEARCH_FAILED_INFORNAN = -1,
  8:     TAOLINESEARCH_FAILED_BADPARAMETER = -2,
  9:     TAOLINESEARCH_FAILED_ASCENT = -3,
 10:     TAOLINESEARCH_CONTINUE_ITERATING = 0,
 11:     TAOLINESEARCH_SUCCESS = 1,
 12:     TAOLINESEARCH_SUCCESS_USER = 2,
 13:     TAOLINESEARCH_HALTED_OTHER = 3,
 14:     TAOLINESEARCH_HALTED_MAXFCN = 4,
 15:     TAOLINESEARCH_HALTED_UPPERBOUND = 5,
 16:     TAOLINESEARCH_HALTED_LOWERBOUND = 6,
 17:     TAOLINESEARCH_HALTED_RTOL = 7,
 18:     TAOLINESEARCH_HALTED_USER = 8
 19: } TaoLineSearchConvergedReason;

 21: typedef const char *TaoLineSearchType;
 22: #define TAOLINESEARCHUNIT     "unit"
 23: #define TAOLINESEARCHMT       "more-thuente"
 24: #define TAOLINESEARCHGPCG     "gpcg"
 25: #define TAOLINESEARCHARMIJO   "armijo"
 26: #define TAOLINESEARCHOWARMIJO "owarmijo"
 27: #define TAOLINESEARCHIPM      "ipm"

 29: PETSC_EXTERN PetscClassId TAOLINESEARCH_CLASSID;
 30: PETSC_EXTERN PetscFunctionList TaoLineSearchList;

 32:  #include <petsctao.h>

 34: PETSC_EXTERN PetscErrorCode TaoLineSearchCreate(MPI_Comm,TaoLineSearch*);
 35: PETSC_EXTERN PetscErrorCode TaoLineSearchSetFromOptions(TaoLineSearch);
 36: PETSC_EXTERN PetscErrorCode TaoLineSearchSetUp(TaoLineSearch);
 37: PETSC_EXTERN PetscErrorCode TaoLineSearchDestroy(TaoLineSearch*);
 38: PETSC_EXTERN PetscErrorCode TaoLineSearchMonitor(TaoLineSearch,PetscInt,PetscReal,PetscReal);
 39: PETSC_EXTERN PetscErrorCode TaoLineSearchView(TaoLineSearch,PetscViewer);
 40: PETSC_EXTERN PetscErrorCode TaoLineSearchViewFromOptions(TaoLineSearch,PetscObject,const char[]);

 42: PETSC_EXTERN PetscErrorCode TaoLineSearchSetOptionsPrefix(TaoLineSearch,const char prefix[]);
 43: PETSC_EXTERN PetscErrorCode TaoLineSearchReset(TaoLineSearch);
 44: PETSC_EXTERN PetscErrorCode TaoLineSearchAppendOptionsPrefix(TaoLineSearch,const char prefix[]);
 45: PETSC_EXTERN PetscErrorCode TaoLineSearchGetOptionsPrefix(TaoLineSearch,const char *prefix[]);
 46: PETSC_EXTERN PetscErrorCode TaoLineSearchApply(TaoLineSearch,Vec,PetscReal *,Vec,Vec, PetscReal *, TaoLineSearchConvergedReason *);
 47: PETSC_EXTERN PetscErrorCode TaoLineSearchGetStepLength(TaoLineSearch, PetscReal*);
 48: PETSC_EXTERN PetscErrorCode TaoLineSearchGetStartingVector(TaoLineSearch,Vec*);
 49: PETSC_EXTERN PetscErrorCode TaoLineSearchGetStepDirection(TaoLineSearch,Vec*);
 50: PETSC_EXTERN PetscErrorCode TaoLineSearchSetInitialStepLength(TaoLineSearch, PetscReal);
 51: PETSC_EXTERN PetscErrorCode TaoLineSearchGetSolution(TaoLineSearch, Vec, PetscReal*, Vec, PetscReal*, TaoLineSearchConvergedReason*);
 52: PETSC_EXTERN PetscErrorCode TaoLineSearchGetFullStepObjective(TaoLineSearch, PetscReal*);
 53: PETSC_EXTERN PetscErrorCode TaoLineSearchGetNumberFunctionEvaluations(TaoLineSearch, PetscInt*, PetscInt*, PetscInt*);

 55: PETSC_EXTERN PetscErrorCode TaoLineSearchGetType(TaoLineSearch, TaoLineSearchType *);
 56: PETSC_EXTERN PetscErrorCode TaoLineSearchSetType(TaoLineSearch, TaoLineSearchType);

 58: PETSC_EXTERN PetscErrorCode TaoLineSearchIsUsingTaoRoutines(TaoLineSearch, PetscBool *);
 59: PETSC_EXTERN PetscErrorCode TaoLineSearchSetObjectiveAndGTSRoutine(TaoLineSearch, PetscErrorCode(*)(TaoLineSearch, Vec, Vec, PetscReal*, PetscReal*, void*), void*);
 60: PETSC_EXTERN PetscErrorCode TaoLineSearchSetObjectiveRoutine(TaoLineSearch, PetscErrorCode(*)(TaoLineSearch, Vec, PetscReal*,void*), void*);
 61: PETSC_EXTERN PetscErrorCode TaoLineSearchSetGradientRoutine(TaoLineSearch, PetscErrorCode(*)(TaoLineSearch, Vec, Vec, void*), void*);
 62: PETSC_EXTERN PetscErrorCode TaoLineSearchSetObjectiveAndGradientRoutine(TaoLineSearch, PetscErrorCode(*)(TaoLineSearch, Vec, PetscReal*, Vec, void*), void*);

 64: PETSC_EXTERN PetscErrorCode TaoLineSearchComputeObjective(TaoLineSearch, Vec, PetscReal*);
 65: PETSC_EXTERN PetscErrorCode TaoLineSearchComputeGradient(TaoLineSearch, Vec, Vec);
 66: PETSC_EXTERN PetscErrorCode TaoLineSearchComputeObjectiveAndGradient(TaoLineSearch, Vec, PetscReal*, Vec);
 67: PETSC_EXTERN PetscErrorCode TaoLineSearchComputeObjectiveAndGTS(TaoLineSearch, Vec, PetscReal*, PetscReal*);
 68: PETSC_EXTERN PetscErrorCode TaoLineSearchSetVariableBounds(TaoLineSearch, Vec, Vec);

 70: PETSC_EXTERN PetscErrorCode TaoLineSearchInitializePackage(void);
 71: PETSC_EXTERN PetscErrorCode TaoLineSearchFinalizePackage(void);

 73: PETSC_EXTERN PetscErrorCode TaoLineSearchRegister(const char[], PetscErrorCode (*)(TaoLineSearch));

 75: #endif